./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor494229679 <...> Warning: Permanently added '10.128.1.131' (ED25519) to the list of known hosts. execve("./syz-executor494229679", ["./syz-executor494229679"], 0x7fffc2f39720 /* 10 vars */) = 0 brk(NULL) = 0x55556540f000 brk(0x55556540fd00) = 0x55556540fd00 arch_prctl(ARCH_SET_FS, 0x55556540f380) = 0 set_tid_address(0x55556540f650) = 5841 set_robust_list(0x55556540f660, 24) = 0 rseq(0x55556540fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor494229679", 4096) = 27 getrandom("\xde\x20\xa0\x93\xa1\x29\x64\xed", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556540fd00 brk(0x555565430d00) = 0x555565430d00 brk(0x555565431000) = 0x555565431000 mprotect(0x7f6a042bd000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5842 attached [pid 5842] set_robust_list(0x55556540f660, 24 [pid 5841] <... clone resumed>, child_tidptr=0x55556540f650) = 5842 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached ./strace-static-x86_64: Process 5843 attached , child_tidptr=0x55556540f650) = 5844 [pid 5844] set_robust_list(0x55556540f660, 24 [pid 5843] set_robust_list(0x55556540f660, 24 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] <... set_robust_list resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5843 [pid 5844] <... set_robust_list resumed>) = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] <... prctl resumed>) = 0 [pid 5843] setpgid(0, 0./strace-static-x86_64: Process 5845 attached [pid 5845] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 5846 attached [pid 5841] <... clone resumed>, child_tidptr=0x55556540f650) = 5845 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5843] <... setpgid resumed>) = 0 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5846 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5848 attached ./strace-static-x86_64: Process 5847 attached [pid 5846] set_robust_list(0x55556540f660, 24 [pid 5843] <... openat resumed>) = 3 [pid 5841] <... clone resumed>, child_tidptr=0x55556540f650) = 5847 [pid 5848] set_robust_list(0x55556540f660, 24 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5847] set_robust_list(0x55556540f660, 24 [pid 5843] write(3, "1000", 4 [pid 5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5848] <... set_robust_list resumed>) = 0 [pid 5847] <... set_robust_list resumed>) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5848 ./strace-static-x86_64: Process 5849 attached [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] <... prctl resumed>) = 0 [pid 5843] close(3./strace-static-x86_64: Process 5850 attached [pid 5849] set_robust_list(0x55556540f660, 24 [pid 5843] <... close resumed>) = 0 [pid 5846] setpgid(0, 0 [pid 5841] <... clone resumed>, child_tidptr=0x55556540f650) = 5849 [pid 5848] <... prctl resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5850 [pid 5846] <... setpgid resumed>) = 0 [pid 5843] write(1, "executing program\n", 18 [pid 5848] setpgid(0, 0executing program [pid 5850] set_robust_list(0x55556540f660, 24 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5848] <... setpgid resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] <... write resumed>) = 18 [pid 5850] <... set_robust_list resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] <... openat resumed>) = 3 [pid 5843] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5848] <... openat resumed>) = 3 [pid 5846] write(3, "1000", 4 [pid 5843] <... bpf resumed>) = 3 [pid 5848] write(3, "1000", 4 [pid 5846] <... write resumed>) = 4 [pid 5848] <... write resumed>) = 4 [pid 5846] close(3 [pid 5843] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5851 attached [pid 5850] <... prctl resumed>) = 0 [pid 5848] close(3 [pid 5846] <... close resumed>) = 0 [pid 5851] set_robust_list(0x55556540f660, 24executing program [pid 5850] setpgid(0, 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5851 [pid 5848] <... close resumed>) = 0 [pid 5846] write(1, "executing program\n", 18 [pid 5843] <... bpf resumed>) = 4 [pid 5851] <... set_robust_list resumed>) = 0 [pid 5850] <... setpgid resumed>) = 0 [pid 5848] write(1, "executing program\n", 18executing program [pid 5846] <... write resumed>) = 18 [pid 5843] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5848] <... write resumed>) = 18 [pid 5846] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5851] <... prctl resumed>) = 0 [pid 5850] <... openat resumed>) = 3 [pid 5848] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5843] <... bpf resumed>) = 5 [pid 5851] setpgid(0, 0 [pid 5850] write(3, "1000", 4 [pid 5846] <... bpf resumed>) = 3 [pid 5851] <... setpgid resumed>) = 0 [pid 5850] <... write resumed>) = 4 [pid 5848] <... bpf resumed>) = 3 [pid 5843] exit_group(0 [pid 5846] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5850] close(3 [pid 5848] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5843] <... exit_group resumed>) = ? [pid 5851] <... openat resumed>) = 3 [pid 5850] <... close resumed>) = 0 [pid 5851] write(3, "1000", 4 [pid 5850] write(1, "executing program\n", 18 [pid 5851] <... write resumed>) = 4 [pid 5850] <... write resumed>) = 18 [pid 5851] close(3 [pid 5850] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5851] <... close resumed>) = 0 executing program [pid 5851] write(1, "executing program\n", 18 [pid 5850] <... bpf resumed>) = 3 [pid 5846] <... bpf resumed>) = 4 [pid 5851] <... write resumed>) = 18 [pid 5850] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5851] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5848] <... bpf resumed>) = 4 [pid 5846] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5850] <... bpf resumed>) = 4 [pid 5848] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5843] +++ exited with 0 +++ [pid 5851] <... bpf resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5851] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5850] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5851] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5851] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5852 attached [pid 5852] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5852 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] setpgid(0, 0) = 0 [pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5846] <... bpf resumed>) = 5 [pid 5852] write(3, "1000", 4 [pid 5851] <... bpf resumed>) = 5 [pid 5850] <... bpf resumed>) = 5 [pid 5848] <... bpf resumed>) = 5 [pid 5846] exit_group(0 [pid 5848] exit_group(0 [pid 5846] <... exit_group resumed>) = ? [pid 5851] exit_group(0 [pid 5850] exit_group(0 [pid 5852] <... write resumed>) = 4 [pid 5851] <... exit_group resumed>) = ? [pid 5850] <... exit_group resumed>) = ? [pid 5852] close(3 [pid 5851] +++ exited with 0 +++ [pid 5848] <... exit_group resumed>) = ? [pid 5846] +++ exited with 0 +++ [pid 5852] <... close resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5852] write(1, "executing program\n", 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5852] <... write resumed>) = 18 [pid 5852] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5852] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5852] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached ./strace-static-x86_64: Process 5854 attached [pid 5852] <... bpf resumed>) = 4 [pid 5852] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5854] set_robust_list(0x55556540f660, 24 [pid 5853] set_robust_list(0x55556540f660, 24 [pid 5850] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5853 [pid 5848] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5854 [pid 5854] <... set_robust_list resumed>) = 0 [pid 5853] <... set_robust_list resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5854] <... prctl resumed>) = 0 [pid 5853] <... prctl resumed>) = 0 [pid 5853] setpgid(0, 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5854] setpgid(0, 0./strace-static-x86_64: Process 5855 attached ) = 0 [pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5855] set_robust_list(0x55556540f660, 24) = 0 [pid 5853] <... setpgid resumed>) = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5856 attached [pid 5855] <... prctl resumed>) = 0 [pid 5854] <... openat resumed>) = 3 [pid 5853] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5855 [pid 5855] setpgid(0, 0 [pid 5854] write(3, "1000", 4 [pid 5853] write(3, "1000", 4 [pid 5856] set_robust_list(0x55556540f660, 24 [pid 5855] <... setpgid resumed>) = 0 executing program [pid 5854] <... write resumed>) = 4 [pid 5856] <... set_robust_list resumed>) = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5853] <... write resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5856 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5853] close(3 [pid 5856] <... prctl resumed>) = 0 [pid 5853] <... close resumed>) = 0 [pid 5856] setpgid(0, 0 [pid 5853] write(1, "executing program\n", 18 [pid 5856] <... setpgid resumed>) = 0 [pid 5853] <... write resumed>) = 18 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5853] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5856] <... openat resumed>) = 3 [pid 5855] <... openat resumed>) = 3 [pid 5854] close(3 [pid 5856] write(3, "1000", 4 [pid 5855] write(3, "1000", 4 [pid 5854] <... close resumed>) = 0 [pid 5853] <... bpf resumed>) = 3 [pid 5852] <... bpf resumed>) = 5 [pid 5856] <... write resumed>) = 4 [pid 5855] <... write resumed>) = 4 [pid 5854] write(1, "executing program\n", 18executing program [pid 5853] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5852] exit_group(0 [pid 5856] close(3 [pid 5855] close(3 [pid 5854] <... write resumed>) = 18 [pid 5853] <... bpf resumed>) = 4 [pid 5856] <... close resumed>) = 0 [pid 5852] <... exit_group resumed>) = ? [pid 5854] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5855] <... close resumed>) = 0 executing program [pid 5856] write(1, "executing program\n", 18 [pid 5855] write(1, "executing program\n", 18 [pid 5854] <... bpf resumed>) = 3 executing program [pid 5853] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5852] +++ exited with 0 +++ [pid 5856] <... write resumed>) = 18 [pid 5855] <... write resumed>) = 18 [pid 5854] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5856] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5855] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5856] <... bpf resumed>) = 3 [pid 5854] <... bpf resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5856] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5855] <... bpf resumed>) = 3 [pid 5854] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5855] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5856] <... bpf resumed>) = 4 [pid 5855] <... bpf resumed>) = 4 [pid 5856] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5855] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5857 attached [pid 5857] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5857 [pid 5857] <... set_robust_list resumed>) = 0 [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5857] setpgid(0, 0) = 0 [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5856] <... bpf resumed>) = 5 [pid 5855] <... bpf resumed>) = 5 [pid 5854] <... bpf resumed>) = 5 [pid 5853] <... bpf resumed>) = 5 [pid 5857] <... openat resumed>) = 3 [pid 5856] exit_group(0 [pid 5855] exit_group(0 [pid 5854] exit_group(0 [pid 5853] exit_group(0 [pid 5857] write(3, "1000", 4 [pid 5856] <... exit_group resumed>) = ? [pid 5855] <... exit_group resumed>) = ? [pid 5854] <... exit_group resumed>) = ? [pid 5853] <... exit_group resumed>) = ? [pid 5857] <... write resumed>) = 4 [pid 5856] +++ exited with 0 +++ [pid 5855] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5857] close(3) = 0 [pid 5857] write(1, "executing program\n", 18executing program ) = 18 [pid 5857] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5857] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5857] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5854] +++ exited with 0 +++ [pid 5853] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached ./strace-static-x86_64: Process 5858 attached [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5860 attached [pid 5857] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5860 [pid 5859] set_robust_list(0x55556540f660, 24 [pid 5860] set_robust_list(0x55556540f660, 24 [pid 5859] <... set_robust_list resumed>) = 0 [pid 5860] <... set_robust_list resumed>) = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5861 attached [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5858] set_robust_list(0x55556540f660, 24 [pid 5857] exit_group(0 [pid 5861] set_robust_list(0x55556540f660, 24 [pid 5860] <... prctl resumed>) = 0 [pid 5859] <... prctl resumed>) = 0 [pid 5858] <... set_robust_list resumed>) = 0 [pid 5857] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5858 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5859 [pid 5860] setpgid(0, 0 [pid 5859] setpgid(0, 0 [pid 5860] <... setpgid resumed>) = 0 [pid 5859] <... setpgid resumed>) = 0 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5861] <... set_robust_list resumed>) = 0 [pid 5860] <... openat resumed>) = 3 [pid 5859] <... openat resumed>) = 3 [pid 5857] +++ exited with 0 +++ [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5861 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5858] <... prctl resumed>) = 0 [pid 5861] <... prctl resumed>) = 0 [pid 5861] setpgid(0, 0 [pid 5860] write(3, "1000", 4 [pid 5859] write(3, "1000", 4 [pid 5858] setpgid(0, 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5860] <... write resumed>) = 4 [pid 5859] <... write resumed>) = 4 [pid 5861] <... setpgid resumed>) = 0 [pid 5860] close(3 [pid 5859] close(3 [pid 5858] <... setpgid resumed>) = 0 [pid 5860] <... close resumed>) = 0 [pid 5859] <... close resumed>) = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5860] write(1, "executing program\n", 18 [pid 5859] write(1, "executing program\n", 18 [pid 5860] <... write resumed>) = 18 executing program executing program [pid 5859] <... write resumed>) = 18 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5861] <... openat resumed>) = 3 [pid 5860] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5861] write(3, "1000", 4 [pid 5860] <... bpf resumed>) = 3 [pid 5859] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5858] <... openat resumed>) = 3 [pid 5861] <... write resumed>) = 4 [pid 5860] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5859] <... bpf resumed>) = 3 [pid 5861] close(3 [pid 5860] <... bpf resumed>) = 4 [pid 5859] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5858] write(3, "1000", 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5861] <... close resumed>) = 0 [pid 5860] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5859] <... bpf resumed>) = 4 [pid 5858] <... write resumed>) = 4 executing program [pid 5861] write(1, "executing program\n", 18 [pid 5860] <... bpf resumed>) = 5 [pid 5858] close(3 [pid 5861] <... write resumed>) = 18 [pid 5860] exit_group(0 [pid 5859] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5858] <... close resumed>) = 0 [pid 5861] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5860] <... exit_group resumed>) = ? [pid 5859] <... bpf resumed>) = 5 [pid 5858] write(1, "executing program\n", 18 [pid 5861] <... bpf resumed>) = 3 executing program [pid 5859] exit_group(0 [pid 5858] <... write resumed>) = 18 [pid 5861] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5858] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5859] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5862 attached [pid 5861] <... bpf resumed>) = 4 [pid 5858] <... bpf resumed>) = 3 [pid 5862] set_robust_list(0x55556540f660, 24 [pid 5861] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5858] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5862 [pid 5862] <... set_robust_list resumed>) = 0 [pid 5860] +++ exited with 0 +++ [pid 5859] +++ exited with 0 +++ [pid 5858] <... bpf resumed>) = 4 [pid 5862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5862] setpgid(0, 0) = 0 [pid 5858] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5860, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5862] <... openat resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5862] write(3, "1000", 4) = 4 [pid 5862] close(3) = 0 [pid 5862] write(1, "executing program\n", 18) = 18 executing program [pid 5862] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5862] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5864 attached ./strace-static-x86_64: Process 5863 attached [pid 5861] <... bpf resumed>) = 5 [pid 5858] <... bpf resumed>) = 5 [pid 5864] set_robust_list(0x55556540f660, 24 [pid 5863] set_robust_list(0x55556540f660, 24 [pid 5862] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5861] exit_group(0 [pid 5858] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5863 [pid 5864] <... set_robust_list resumed>) = 0 [pid 5863] <... set_robust_list resumed>) = 0 [pid 5862] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5864 [pid 5864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5861] <... exit_group resumed>) = ? [pid 5858] <... exit_group resumed>) = ? [pid 5864] <... prctl resumed>) = 0 [pid 5863] <... prctl resumed>) = 0 [pid 5862] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5864] setpgid(0, 0 [pid 5863] setpgid(0, 0 [pid 5862] <... bpf resumed>) = 5 [pid 5864] <... setpgid resumed>) = 0 [pid 5863] <... setpgid resumed>) = 0 [pid 5864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5862] exit_group(0 [pid 5858] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5864] <... openat resumed>) = 3 [pid 5862] <... exit_group resumed>) = ? [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5863] <... openat resumed>) = 3 [pid 5864] write(3, "1000", 4 [pid 5863] write(3, "1000", 4 [pid 5864] <... write resumed>) = 4 [pid 5863] <... write resumed>) = 4 [pid 5864] close(3 [pid 5863] close(3 [pid 5864] <... close resumed>) = 0 [pid 5863] <... close resumed>) = 0 executing program [pid 5864] write(1, "executing program\n", 18 [pid 5863] write(1, "executing program\n", 18executing program [pid 5864] <... write resumed>) = 18 [pid 5863] <... write resumed>) = 18 [pid 5864] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5863] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5864] <... bpf resumed>) = 3 [pid 5864] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5863] <... bpf resumed>) = 3 [pid 5863] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached [pid 5864] <... bpf resumed>) = 4 [pid 5864] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5863] <... bpf resumed>) = 4 [pid 5861] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5863] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5865] set_robust_list(0x55556540f660, 24) = 0 [pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5865] setpgid(0, 0) = 0 [pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5862] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5865 [pid 5865] write(3, "1000", 4) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5862, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5865] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5866 attached [pid 5865] <... close resumed>) = 0 [pid 5864] <... bpf resumed>) = 5 [pid 5863] <... bpf resumed>) = 5 executing program [pid 5866] set_robust_list(0x55556540f660, 24 [pid 5865] write(1, "executing program\n", 18 [pid 5864] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5866 [pid 5866] <... set_robust_list resumed>) = 0 [pid 5865] <... write resumed>) = 18 [pid 5864] <... exit_group resumed>) = ? [pid 5863] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5865] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5867 attached ) = 3 [pid 5863] <... exit_group resumed>) = ? [pid 5867] set_robust_list(0x55556540f660, 24) = 0 [pid 5866] <... prctl resumed>) = 0 [pid 5865] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5867 [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5866] setpgid(0, 0 [pid 5865] <... bpf resumed>) = 4 [pid 5867] <... prctl resumed>) = 0 [pid 5866] <... setpgid resumed>) = 0 [pid 5867] setpgid(0, 0) = 0 [pid 5865] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5865] <... bpf resumed>) = 5 [pid 5864] +++ exited with 0 +++ [pid 5867] <... openat resumed>) = 3 [pid 5866] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5864, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5866] write(3, "1000", 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5866] <... write resumed>) = 4 [pid 5867] write(3, "1000", 4 [pid 5865] exit_group(0 [pid 5867] <... write resumed>) = 4 [pid 5865] <... exit_group resumed>) = ? [pid 5867] close(3 [pid 5866] close(3 [pid 5867] <... close resumed>) = 0 [pid 5866] <... close resumed>) = 0 [pid 5867] write(1, "executing program\n", 18 executing program executing program [pid 5866] write(1, "executing program\n", 18 [pid 5867] <... write resumed>) = 18 [pid 5867] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5866] <... write resumed>) = 18 [pid 5867] <... bpf resumed>) = 3 [pid 5866] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5867] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5866] <... bpf resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5866] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5867] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5868 attached [pid 5868] set_robust_list(0x55556540f660, 24 [pid 5866] <... bpf resumed>) = 4 [pid 5865] +++ exited with 0 +++ [pid 5863] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5868 [pid 5866] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5868] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5869 attached [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5870 attached ) = 3 [pid 5869] set_robust_list(0x55556540f660, 24 [pid 5870] set_robust_list(0x55556540f660, 24 [pid 5868] write(3, "1000", 4 [pid 5867] <... bpf resumed>) = 5 [pid 5866] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5869 [pid 5868] <... write resumed>) = 4 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5868] close(3 [pid 5867] exit_group(0 [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... set_robust_list resumed>) = 0 [pid 5868] <... close resumed>) = 0 [pid 5866] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5870 [pid 5870] <... prctl resumed>) = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] write(1, "executing program\n", 18executing program [pid 5867] <... exit_group resumed>) = ? [pid 5866] <... exit_group resumed>) = ? [pid 5870] setpgid(0, 0 [pid 5869] <... prctl resumed>) = 0 [pid 5868] <... write resumed>) = 18 [pid 5870] <... setpgid resumed>) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] <... openat resumed>) = 3 [pid 5868] <... bpf resumed>) = 3 [pid 5870] <... openat resumed>) = 3 [pid 5869] write(3, "1000", 4 [pid 5870] write(3, "1000", 4 [pid 5868] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5870] <... write resumed>) = 4 [pid 5869] <... write resumed>) = 4 [pid 5869] close(3 [pid 5870] close(3 [pid 5868] <... bpf resumed>) = 4 [pid 5870] <... close resumed>) = 0 [pid 5869] <... close resumed>) = 0 [pid 5870] write(1, "executing program\n", 18executing program executing program [pid 5869] write(1, "executing program\n", 18 [pid 5868] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5870] <... write resumed>) = 18 [pid 5869] <... write resumed>) = 18 [pid 5870] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5869] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5870] <... bpf resumed>) = 3 [pid 5869] <... bpf resumed>) = 3 [pid 5870] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5869] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5870] <... bpf resumed>) = 4 [pid 5869] <... bpf resumed>) = 4 [pid 5870] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5869] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5867] +++ exited with 0 +++ [pid 5866] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5871 attached [pid 5871] set_robust_list(0x55556540f660, 24 [pid 5870] <... bpf resumed>) = 5 [pid 5869] <... bpf resumed>) = 5 [pid 5868] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5871 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5871] <... set_robust_list resumed>) = 0 [pid 5868] exit_group(0 [pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5870] exit_group(0 [pid 5869] exit_group(0 [pid 5868] <... exit_group resumed>) = ? [pid 5871] <... prctl resumed>) = 0 [pid 5870] <... exit_group resumed>) = ? [pid 5869] <... exit_group resumed>) = ? [pid 5868] +++ exited with 0 +++ [pid 5871] setpgid(0, 0) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5868, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5869] +++ exited with 0 +++ [pid 5871] <... openat resumed>) = 3 [pid 5870] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5871] write(3, "1000", 4 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5871] <... write resumed>) = 4 [pid 5871] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5873 attached [pid 5871] <... close resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5872 attached executing program [pid 5871] write(1, "executing program\n", 18 [pid 5872] set_robust_list(0x55556540f660, 24 [pid 5871] <... write resumed>) = 18 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5871] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5873 [pid 5873] set_robust_list(0x55556540f660, 24 [pid 5872] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5871] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5872 [pid 5873] <... set_robust_list resumed>) = 0 [pid 5872] <... prctl resumed>) = 0 [pid 5871] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5874 attached [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5872] setpgid(0, 0 [pid 5871] <... bpf resumed>) = 4 [pid 5873] <... prctl resumed>) = 0 [pid 5872] <... setpgid resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5871] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5873] setpgid(0, 0 [pid 5872] <... openat resumed>) = 3 [pid 5874] set_robust_list(0x55556540f660, 24 [pid 5872] write(3, "1000", 4) = 4 [pid 5872] close(3) = 0 [pid 5872] write(1, "executing program\n", 18) = 18 [pid 5872] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5874] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5874 [pid 5873] <... setpgid resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5872] <... bpf resumed>) = 3 [pid 5871] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5872] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5871] exit_group(0./strace-static-x86_64: Process 5875 attached [pid 5874] <... prctl resumed>) = 0 [pid 5873] <... openat resumed>) = 3 [pid 5871] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5875 [pid 5875] set_robust_list(0x55556540f660, 24 [pid 5874] setpgid(0, 0 [pid 5873] write(3, "1000", 4 [pid 5872] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5874] <... setpgid resumed>) = 0 [pid 5873] <... write resumed>) = 4 [pid 5875] <... set_robust_list resumed>) = 0 [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5873] close(3 [pid 5871] +++ exited with 0 +++ [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5873] <... close resumed>) = 0 [pid 5875] <... prctl resumed>) = 0 executing program [pid 5873] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5875] setpgid(0, 0 [pid 5873] <... write resumed>) = 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5875] <... setpgid resumed>) = 0 [pid 5874] <... openat resumed>) = 3 [pid 5873] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5874] write(3, "1000", 4executing program [pid 5873] <... bpf resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5874] <... write resumed>) = 4 [pid 5874] close(3 [pid 5873] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5874] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5874] write(1, "executing program\n", 18 [pid 5875] <... openat resumed>) = 3 [pid 5872] <... bpf resumed>) = 5 [pid 5875] write(3, "1000", 4./strace-static-x86_64: Process 5876 attached ) = 4 [pid 5874] <... write resumed>) = 18 [pid 5875] close(3) = 0 [pid 5874] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5873] <... bpf resumed>) = 4 [pid 5872] exit_group(0 [pid 5876] set_robust_list(0x55556540f660, 24 [pid 5875] write(1, "executing program\n", 18executing program [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5876 [pid 5874] <... bpf resumed>) = 3 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5875] <... write resumed>) = 18 [pid 5874] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5873] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5872] <... exit_group resumed>) = ? [pid 5876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5875] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5874] <... bpf resumed>) = 4 [pid 5873] <... bpf resumed>) = 5 [pid 5876] <... prctl resumed>) = 0 [pid 5876] setpgid(0, 0 [pid 5875] <... bpf resumed>) = 3 [pid 5873] exit_group(0 [pid 5876] <... setpgid resumed>) = 0 [pid 5875] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5875] <... bpf resumed>) = 4 [pid 5874] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5873] <... exit_group resumed>) = ? [pid 5875] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5876] <... openat resumed>) = 3 [pid 5876] write(3, "1000", 4) = 4 [pid 5874] <... bpf resumed>) = 5 [pid 5872] +++ exited with 0 +++ [pid 5876] close(3) = 0 executing program [pid 5876] write(1, "executing program\n", 18 [pid 5874] exit_group(0 [pid 5876] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5874] <... exit_group resumed>) = ? [pid 5876] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5876] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5877 attached [pid 5876] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5877 [pid 5877] set_robust_list(0x55556540f660, 24 [pid 5876] <... bpf resumed>) = 4 [pid 5877] <... set_robust_list resumed>) = 0 [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5876] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5877] <... prctl resumed>) = 0 [pid 5877] setpgid(0, 0) = 0 [pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5877] write(3, "1000", 4) = 4 [pid 5877] close(3) = 0 executing program [pid 5877] write(1, "executing program\n", 18) = 18 [pid 5877] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5877] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5875] <... bpf resumed>) = 5 [pid 5873] +++ exited with 0 +++ [pid 5877] <... bpf resumed>) = 4 [pid 5875] exit_group(0 [pid 5877] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5875] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5878 attached , child_tidptr=0x55556540f650) = 5878 [pid 5878] set_robust_list(0x55556540f660, 24) = 0 [pid 5878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5878] setpgid(0, 0) = 0 [pid 5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5878] write(3, "1000", 4 [pid 5874] +++ exited with 0 +++ [pid 5878] <... write resumed>) = 4 [pid 5878] close(3 [pid 5876] <... bpf resumed>) = 5 [pid 5878] <... close resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5874, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5878] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5879 attached [pid 5878] <... write resumed>) = 18 [pid 5876] exit_group(0 [pid 5878] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5879] set_robust_list(0x55556540f660, 24 [pid 5876] <... exit_group resumed>) = ? [pid 5878] <... bpf resumed>) = 3 [pid 5879] <... set_robust_list resumed>) = 0 [pid 5878] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5879 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5878] <... bpf resumed>) = 4 [pid 5879] setpgid(0, 0) = 0 [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5878] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5879] <... openat resumed>) = 3 [pid 5879] write(3, "1000", 4) = 4 [pid 5877] <... bpf resumed>) = 5 [pid 5875] +++ exited with 0 +++ [pid 5879] close(3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5879] <... close resumed>) = 0 [pid 5879] write(1, "executing program\n", 18 [pid 5877] exit_group(0executing program [pid 5879] <... write resumed>) = 18 [pid 5877] <... exit_group resumed>) = ? [pid 5879] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5880 attached [pid 5880] set_robust_list(0x55556540f660, 24 [pid 5879] <... bpf resumed>) = 3 [pid 5880] <... set_robust_list resumed>) = 0 [pid 5879] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5880] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5879] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5880 [pid 5879] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5878] <... bpf resumed>) = 5 [pid 5876] +++ exited with 0 +++ [pid 5880] <... prctl resumed>) = 0 [pid 5878] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5880] setpgid(0, 0 [pid 5878] <... exit_group resumed>) = ? [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5880] <... setpgid resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5880] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5881 attached [pid 5880] write(3, "1000", 4 [pid 5877] +++ exited with 0 +++ [pid 5880] <... write resumed>) = 4 [pid 5880] close(3 [pid 5879] <... bpf resumed>) = 5 [pid 5881] set_robust_list(0x55556540f660, 24) = 0 [pid 5880] <... close resumed>) = 0 [pid 5879] exit_group(0executing program [pid 5880] write(1, "executing program\n", 18 [pid 5879] <... exit_group resumed>) = ? [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5881] <... prctl resumed>) = 0 [pid 5880] <... write resumed>) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5881 [pid 5880] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5881] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5881] <... setpgid resumed>) = 0 [pid 5880] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5882 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5882 [pid 5882] set_robust_list(0x55556540f660, 24 [pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5880] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5882] <... set_robust_list resumed>) = 0 [pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5881] <... openat resumed>) = 3 [pid 5882] setpgid(0, 0 [pid 5880] <... bpf resumed>) = 4 [pid 5882] <... setpgid resumed>) = 0 [pid 5881] write(3, "1000", 4 [pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5881] <... write resumed>) = 4 [pid 5881] close(3) = 0 [pid 5880] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5882] <... openat resumed>) = 3 [pid 5881] write(1, "executing program\n", 18 [pid 5879] +++ exited with 0 +++ [pid 5878] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5881] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5882] write(3, "1000", 4 [pid 5881] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5882] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5882] close(3 [pid 5881] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5883 attached [pid 5882] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5882] write(1, "executing program\n", 18 executing program [pid 5881] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5882] <... write resumed>) = 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5883 ./strace-static-x86_64: Process 5884 attached [pid 5882] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5883] set_robust_list(0x55556540f660, 24 [pid 5884] set_robust_list(0x55556540f660, 24) = 0 [pid 5884] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5881] <... bpf resumed>) = 4 [pid 5883] <... set_robust_list resumed>) = 0 [pid 5882] <... bpf resumed>) = 3 [pid 5884] <... prctl resumed>) = 0 [pid 5884] setpgid(0, 0) = 0 [pid 5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5882] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5881] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5880] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5884 [pid 5884] write(3, "1000", 4 [pid 5883] <... prctl resumed>) = 0 [pid 5884] <... write resumed>) = 4 [pid 5882] <... bpf resumed>) = 4 [pid 5884] close(3 [pid 5883] setpgid(0, 0 [pid 5881] <... bpf resumed>) = 5 [pid 5884] <... close resumed>) = 0 executing program [pid 5884] write(1, "executing program\n", 18) = 18 [pid 5884] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5884] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5883] <... setpgid resumed>) = 0 [pid 5880] exit_group(0 [pid 5884] <... bpf resumed>) = 4 [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5882] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5881] exit_group(0 [pid 5880] <... exit_group resumed>) = ? [pid 5884] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5883] <... openat resumed>) = 3 [pid 5882] <... bpf resumed>) = 5 [pid 5881] <... exit_group resumed>) = ? [pid 5884] <... bpf resumed>) = 5 [pid 5884] exit_group(0) = ? [pid 5883] write(3, "1000", 4 [pid 5882] exit_group(0 [pid 5881] +++ exited with 0 +++ [pid 5880] +++ exited with 0 +++ [pid 5883] <... write resumed>) = 4 [pid 5882] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5883] close(3) = 0 [pid 5883] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5885 attached [pid 5883] <... write resumed>) = 18 ./strace-static-x86_64: Process 5886 attached [pid 5885] set_robust_list(0x55556540f660, 24 [pid 5883] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5884] +++ exited with 0 +++ [pid 5886] set_robust_list(0x55556540f660, 24 [pid 5885] <... set_robust_list resumed>) = 0 [pid 5883] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5885 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5886] <... set_robust_list resumed>) = 0 [pid 5885] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5883] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5882] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5886 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5885] <... prctl resumed>) = 0 [pid 5883] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5886] <... prctl resumed>) = 0 [pid 5885] setpgid(0, 0) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5886] setpgid(0, 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5886] <... setpgid resumed>) = 0 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5885] <... openat resumed>) = 3 [pid 5883] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5886] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5887 attached [pid 5885] write(3, "1000", 4 [pid 5883] <... bpf resumed>) = 5 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5887] set_robust_list(0x55556540f660, 24 [pid 5886] write(3, "1000", 4 [pid 5885] <... write resumed>) = 4 [pid 5883] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5887 [pid 5887] <... set_robust_list resumed>) = 0 [pid 5886] <... write resumed>) = 4 [pid 5885] close(3 [pid 5883] <... exit_group resumed>) = ? executing program executing program [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5886] close(3 [pid 5885] <... close resumed>) = 0 [pid 5883] +++ exited with 0 +++ [pid 5886] <... close resumed>) = 0 [pid 5885] write(1, "executing program\n", 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5887] <... prctl resumed>) = 0 [pid 5886] write(1, "executing program\n", 18 [pid 5885] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5888 attached [pid 5887] setpgid(0, 0 [pid 5886] <... write resumed>) = 18 [pid 5885] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5888] set_robust_list(0x55556540f660, 24 [pid 5887] <... setpgid resumed>) = 0 [pid 5886] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5885] <... bpf resumed>) = 3 [pid 5888] <... set_robust_list resumed>) = 0 [pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5886] <... bpf resumed>) = 3 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5887] <... openat resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5888 [pid 5888] <... prctl resumed>) = 0 [pid 5887] write(3, "1000", 4 [pid 5886] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5885] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5888] setpgid(0, 0executing program [pid 5887] <... write resumed>) = 4 [pid 5888] <... setpgid resumed>) = 0 [pid 5887] close(3 [pid 5886] <... bpf resumed>) = 4 [pid 5885] <... bpf resumed>) = 4 [pid 5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5887] <... close resumed>) = 0 [pid 5888] <... openat resumed>) = 3 [pid 5887] write(1, "executing program\n", 18) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5888] write(3, "1000", 4 [pid 5887] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5886] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5885] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5889 attached [pid 5888] <... write resumed>) = 4 [pid 5887] <... bpf resumed>) = 3 [pid 5886] <... bpf resumed>) = 5 [pid 5889] set_robust_list(0x55556540f660, 24 [pid 5888] close(3 [pid 5885] <... bpf resumed>) = 5 [pid 5889] <... set_robust_list resumed>) = 0 [pid 5888] <... close resumed>) = 0 [pid 5887] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5886] exit_group(0 [pid 5885] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5889 executing program [pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5888] write(1, "executing program\n", 18 [pid 5887] <... bpf resumed>) = 4 [pid 5886] <... exit_group resumed>) = ? [pid 5885] <... exit_group resumed>) = ? [pid 5889] <... prctl resumed>) = 0 [pid 5888] <... write resumed>) = 18 [pid 5889] setpgid(0, 0 [pid 5888] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5889] <... setpgid resumed>) = 0 [pid 5888] <... bpf resumed>) = 3 [pid 5887] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5886] +++ exited with 0 +++ [pid 5885] +++ exited with 0 +++ [pid 5888] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5885, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5888] <... bpf resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5888] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5889] <... openat resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5889] write(3, "1000", 4) = 4 [pid 5889] close(3) = 0 executing program [pid 5889] write(1, "executing program\n", 18) = 18 [pid 5888] <... bpf resumed>) = 5 [pid 5887] <... bpf resumed>) = 5 [pid 5889] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5888] exit_group(0 [pid 5887] exit_group(0) = ? [pid 5889] <... bpf resumed>) = 3 [pid 5888] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5890 attached ./strace-static-x86_64: Process 5891 attached [pid 5889] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5888] +++ exited with 0 +++ [pid 5887] +++ exited with 0 +++ [pid 5890] set_robust_list(0x55556540f660, 24 [pid 5889] <... bpf resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5888, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5891 [pid 5889] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5891] set_robust_list(0x55556540f660, 24 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5890 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5891] <... set_robust_list resumed>) = 0 [pid 5890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5890] <... prctl resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5891] <... prctl resumed>) = 0 [pid 5890] setpgid(0, 0 [pid 5889] <... bpf resumed>) = 5 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5891] setpgid(0, 0 [pid 5890] <... setpgid resumed>) = 0 [pid 5891] <... setpgid resumed>) = 0 [pid 5889] exit_group(0 [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5889] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5892 attached [pid 5891] <... openat resumed>) = 3 [pid 5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5891] write(3, "1000", 4 [pid 5890] <... openat resumed>) = 3 [pid 5892] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 5893 attached ) = 0 [pid 5891] <... write resumed>) = 4 [pid 5891] close(3) = 0 [pid 5890] write(3, "1000", 4 [pid 5891] write(1, "executing program\n", 18 [pid 5890] <... write resumed>) = 4 executing program [pid 5891] <... write resumed>) = 18 [pid 5890] close(3 [pid 5891] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5890] <... close resumed>) = 0 [pid 5893] set_robust_list(0x55556540f660, 24 [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 5891] <... bpf resumed>) = 3 [pid 5890] write(1, "executing program\n", 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5892 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5893 [pid 5893] <... set_robust_list resumed>) = 0 [pid 5892] <... prctl resumed>) = 0 [pid 5891] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5890] <... write resumed>) = 18 [pid 5889] +++ exited with 0 +++ [pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5892] setpgid(0, 0 [pid 5891] <... bpf resumed>) = 4 [pid 5890] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5889, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5893] <... prctl resumed>) = 0 [pid 5892] <... setpgid resumed>) = 0 [pid 5891] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5890] <... bpf resumed>) = 3 [pid 5893] setpgid(0, 0 [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5890] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5893] <... setpgid resumed>) = 0 [pid 5892] <... openat resumed>) = 3 [pid 5890] <... bpf resumed>) = 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5890] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5892] write(3, "1000", 4 [pid 5891] <... bpf resumed>) = 5 [pid 5892] <... write resumed>) = 4 [pid 5891] exit_group(0 [pid 5893] <... openat resumed>) = 3 [pid 5892] close(3 [pid 5891] <... exit_group resumed>) = ? [pid 5890] <... bpf resumed>) = 5 [pid 5893] write(3, "1000", 4 [pid 5892] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5893] <... write resumed>) = 4 [pid 5892] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5894 attached [pid 5890] exit_group(0 [pid 5894] set_robust_list(0x55556540f660, 24) = 0 [pid 5893] close(3 [pid 5892] <... write resumed>) = 18 [pid 5890] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5894 [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5893] <... close resumed>) = 0 executing program [pid 5892] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5893] write(1, "executing program\n", 18 [pid 5894] <... prctl resumed>) = 0 [pid 5893] <... write resumed>) = 18 [pid 5894] setpgid(0, 0 [pid 5893] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5892] <... bpf resumed>) = 3 [pid 5894] <... setpgid resumed>) = 0 [pid 5893] <... bpf resumed>) = 3 [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5892] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5894] <... openat resumed>) = 3 [pid 5893] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5894] write(3, "1000", 4) = 4 [pid 5894] close(3) = 0 [pid 5894] write(1, "executing program\n", 18 [pid 5893] <... bpf resumed>) = 4 [pid 5892] <... bpf resumed>) = 4 executing program [pid 5891] +++ exited with 0 +++ [pid 5890] +++ exited with 0 +++ [pid 5894] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5894] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5893] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5892] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5894] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5894] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5895 attached [pid 5894] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5895 [pid 5895] set_robust_list(0x55556540f660, 24 [pid 5894] <... bpf resumed>) = 5 [pid 5893] <... bpf resumed>) = 5 [pid 5892] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5895] <... set_robust_list resumed>) = 0 [pid 5894] exit_group(0 [pid 5892] exit_group(0) = ? [pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5894] <... exit_group resumed>) = ? [pid 5893] exit_group(0 [pid 5892] +++ exited with 0 +++ ./strace-static-x86_64: Process 5896 attached [pid 5896] set_robust_list(0x55556540f660, 24) = 0 [pid 5896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5896] setpgid(0, 0 [pid 5895] <... prctl resumed>) = 0 [pid 5894] +++ exited with 0 +++ [pid 5893] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5896 [pid 5896] <... setpgid resumed>) = 0 [pid 5895] setpgid(0, 0 [pid 5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5896] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5896] write(3, "1000", 4./strace-static-x86_64: Process 5897 attached ) = 4 [pid 5895] <... setpgid resumed>) = 0 [pid 5893] +++ exited with 0 +++ [pid 5897] set_robust_list(0x55556540f660, 24 [pid 5896] close(3 [pid 5897] <... set_robust_list resumed>) = 0 [pid 5896] <... close resumed>) = 0 [pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5896] write(1, "executing program\n", 18) = 18 [pid 5896] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5897] <... prctl resumed>) = 0 [pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5897 [pid 5897] setpgid(0, 0 [pid 5896] <... bpf resumed>) = 3 [pid 5897] <... setpgid resumed>) = 0 [pid 5896] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5895] <... openat resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5896] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5898 attached [pid 5897] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5899 attached [pid 5898] set_robust_list(0x55556540f660, 24 [pid 5897] write(3, "1000", 4 [pid 5896] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5895] write(3, "1000", 4 [pid 5898] <... set_robust_list resumed>) = 0 [pid 5895] <... write resumed>) = 4 [pid 5899] set_robust_list(0x55556540f660, 24 [pid 5898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5896] <... bpf resumed>) = 5 [pid 5895] close(3 [pid 5897] <... write resumed>) = 4 [pid 5895] <... close resumed>) = 0 [pid 5899] <... set_robust_list resumed>) = 0 [pid 5898] <... prctl resumed>) = 0 [pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5898] setpgid(0, 0 [pid 5897] close(3 [pid 5896] exit_group(0 [pid 5895] write(1, "executing program\n", 18executing program [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5899 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5898 [pid 5899] <... prctl resumed>) = 0 [pid 5897] <... close resumed>) = 0 [pid 5896] <... exit_group resumed>) = ? [pid 5895] <... write resumed>) = 18 executing program [pid 5899] setpgid(0, 0 [pid 5898] <... setpgid resumed>) = 0 [pid 5897] write(1, "executing program\n", 18 [pid 5896] +++ exited with 0 +++ [pid 5895] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5899] <... setpgid resumed>) = 0 [pid 5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5897] <... write resumed>) = 18 [pid 5895] <... bpf resumed>) = 3 [pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5897] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5895] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5899] <... openat resumed>) = 3 [pid 5898] <... openat resumed>) = 3 [pid 5897] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5896, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5899] write(3, "1000", 4 [pid 5898] write(3, "1000", 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5899] <... write resumed>) = 4 [pid 5898] <... write resumed>) = 4 [pid 5899] close(3 [pid 5898] close(3 [pid 5897] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5895] <... bpf resumed>) = 4 [pid 5899] <... close resumed>) = 0 [pid 5898] <... close resumed>) = 0 [pid 5897] <... bpf resumed>) = 4 executing program executing program [pid 5899] write(1, "executing program\n", 18 [pid 5898] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5899] <... write resumed>) = 18 [pid 5898] <... write resumed>) = 18 [pid 5897] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5895] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5898] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5899] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5900 attached ) = 3 [pid 5900] set_robust_list(0x55556540f660, 24 [pid 5899] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5898] <... bpf resumed>) = 3 [pid 5900] <... set_robust_list resumed>) = 0 [pid 5899] <... bpf resumed>) = 4 [pid 5897] <... bpf resumed>) = 5 [pid 5895] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5900 [pid 5900] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5898] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5895] exit_group(0 [pid 5900] <... prctl resumed>) = 0 [pid 5898] <... bpf resumed>) = 4 [pid 5900] setpgid(0, 0 [pid 5897] exit_group(0 [pid 5895] <... exit_group resumed>) = ? [pid 5900] <... setpgid resumed>) = 0 [pid 5899] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5898] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5897] <... exit_group resumed>) = ? [pid 5895] +++ exited with 0 +++ [pid 5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5897] +++ exited with 0 +++ [pid 5900] <... openat resumed>) = 3 [pid 5900] write(3, "1000", 4) = 4 [pid 5900] close(3) = 0 executing program [pid 5900] write(1, "executing program\n", 18) = 18 [pid 5900] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5900] <... bpf resumed>) = 3 [pid 5900] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5900] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5899] <... bpf resumed>) = 5 [pid 5898] <... bpf resumed>) = 5 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5900] exit_group(0) = ? [pid 5899] exit_group(0 [pid 5898] exit_group(0) = ? [pid 5898] +++ exited with 0 +++ [pid 5899] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5898, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5901 attached [pid 5901] set_robust_list(0x55556540f660, 24) = 0 [pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5902 attached [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5901 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5902 [pid 5902] set_robust_list(0x55556540f660, 24 [pid 5901] <... prctl resumed>) = 0 [pid 5902] <... set_robust_list resumed>) = 0 [pid 5901] setpgid(0, 0) = 0 [pid 5902] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5902] <... prctl resumed>) = 0 [pid 5901] <... openat resumed>) = 3 [pid 5902] setpgid(0, 0 [pid 5901] write(3, "1000", 4 [pid 5902] <... setpgid resumed>) = 0 [pid 5901] <... write resumed>) = 4 [pid 5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5901] close(3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5903 attached [pid 5901] <... close resumed>) = 0 [pid 5903] set_robust_list(0x55556540f660, 24executing program [pid 5902] <... openat resumed>) = 3 [pid 5901] write(1, "executing program\n", 18 [pid 5900] +++ exited with 0 +++ [pid 5899] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5903 [pid 5903] <... set_robust_list resumed>) = 0 [pid 5902] write(3, "1000", 4 [pid 5901] <... write resumed>) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5900, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5902] <... write resumed>) = 4 [pid 5901] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5903] setpgid(0, 0 [pid 5902] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5904 attached [pid 5903] <... setpgid resumed>) = 0 [pid 5902] <... close resumed>) = 0 [pid 5901] <... bpf resumed>) = 3 [pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5902] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5904] set_robust_list(0x55556540f660, 24 [pid 5902] <... write resumed>) = 18 [pid 5902] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5901] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5903] <... openat resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5904 ./strace-static-x86_64: Process 5905 attached [pid 5903] write(3, "1000", 4 [pid 5905] set_robust_list(0x55556540f660, 24 [pid 5903] <... write resumed>) = 4 [pid 5904] <... set_robust_list resumed>) = 0 [pid 5905] <... set_robust_list resumed>) = 0 [pid 5903] close(3 [pid 5902] <... bpf resumed>) = 3 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5903] <... close resumed>) = 0 executing program [pid 5903] write(1, "executing program\n", 18 [pid 5905] <... prctl resumed>) = 0 [pid 5904] <... prctl resumed>) = 0 [pid 5903] <... write resumed>) = 18 [pid 5902] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5901] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5905 [pid 5904] setpgid(0, 0 [pid 5905] setpgid(0, 0 [pid 5903] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5905] <... setpgid resumed>) = 0 [pid 5904] <... setpgid resumed>) = 0 [pid 5903] <... bpf resumed>) = 3 [pid 5902] <... bpf resumed>) = 4 [pid 5901] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5903] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5905] <... openat resumed>) = 3 [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5903] <... bpf resumed>) = 4 [pid 5902] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5901] <... bpf resumed>) = 5 [pid 5905] write(3, "1000", 4) = 4 [pid 5904] <... openat resumed>) = 3 [pid 5903] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5905] close(3 [pid 5903] <... bpf resumed>) = 5 [pid 5902] <... bpf resumed>) = 5 [pid 5905] <... close resumed>) = 0 [pid 5905] write(1, "executing program\n", 18) = 18 [pid 5905] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5904] write(3, "1000", 4 [pid 5903] exit_group(0 [pid 5901] exit_group(0 [pid 5905] <... bpf resumed>) = 3 [pid 5902] exit_group(0 [pid 5903] <... exit_group resumed>) = ? [pid 5904] <... write resumed>) = 4 [pid 5902] <... exit_group resumed>) = ? [pid 5901] <... exit_group resumed>) = ? [pid 5905] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5904] close(3) = 0 [pid 5903] +++ exited with 0 +++ executing program [pid 5904] write(1, "executing program\n", 18) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5904] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5902] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5906 attached [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5902, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5904] <... bpf resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5906 [pid 5906] set_robust_list(0x55556540f660, 24) = 0 [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5907 attached [pid 5905] <... bpf resumed>) = 4 [pid 5904] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5901] +++ exited with 0 +++ [pid 5905] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5907] set_robust_list(0x55556540f660, 24 [pid 5906] setpgid(0, 0 [pid 5907] <... set_robust_list resumed>) = 0 [pid 5906] <... setpgid resumed>) = 0 [pid 5904] <... bpf resumed>) = 4 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5907 [pid 5907] <... prctl resumed>) = 0 [pid 5906] <... openat resumed>) = 3 [pid 5904] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5907] setpgid(0, 0 [pid 5906] write(3, "1000", 4 [pid 5907] <... setpgid resumed>) = 0 [pid 5906] <... write resumed>) = 4 [pid 5905] <... bpf resumed>) = 5 [pid 5904] <... bpf resumed>) = 5 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5906] close(3) = 0 [pid 5904] exit_group(0executing program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5907] <... openat resumed>) = 3 [pid 5906] write(1, "executing program\n", 18 [pid 5905] exit_group(0 [pid 5904] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5908 attached executing program [pid 5906] <... write resumed>) = 18 [pid 5905] <... exit_group resumed>) = ? [pid 5904] +++ exited with 0 +++ [pid 5907] write(3, "1000", 4 [pid 5906] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5907] <... write resumed>) = 4 [pid 5906] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5907] close(3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5907] <... close resumed>) = 0 [pid 5906] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5907] write(1, "executing program\n", 18 [pid 5905] +++ exited with 0 +++ [pid 5908] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5908 [pid 5908] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5907] <... write resumed>) = 18 [pid 5906] <... bpf resumed>) = 4 [pid 5908] <... prctl resumed>) = 0 [pid 5907] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5908] setpgid(0, 0 [pid 5907] <... bpf resumed>) = 3 [pid 5908] <... setpgid resumed>) = 0 [pid 5907] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5906] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5907] <... bpf resumed>) = 4 [pid 5907] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5909 attached [pid 5909] set_robust_list(0x55556540f660, 24 [pid 5908] <... openat resumed>) = 3 [pid 5907] <... bpf resumed>) = 5 [pid 5906] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5909 [pid 5909] <... set_robust_list resumed>) = 0 [pid 5908] write(3, "1000", 4 [pid 5906] exit_group(0 [pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5906] <... exit_group resumed>) = ? [pid 5908] <... write resumed>) = 4 [pid 5907] exit_group(0./strace-static-x86_64: Process 5910 attached [pid 5910] set_robust_list(0x55556540f660, 24) = 0 [pid 5910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5909] <... prctl resumed>) = 0 [pid 5908] close(3 [pid 5907] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5910 [pid 5910] setpgid(0, 0) = 0 [pid 5910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5909] setpgid(0, 0 [pid 5908] <... close resumed>) = 0 [pid 5909] <... setpgid resumed>) = 0 [pid 5908] write(1, "executing program\n", 18executing program [pid 5910] <... openat resumed>) = 3 [pid 5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5908] <... write resumed>) = 18 [pid 5908] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5910] write(3, "1000", 4 [pid 5909] <... openat resumed>) = 3 [pid 5908] <... bpf resumed>) = 3 [pid 5907] +++ exited with 0 +++ [pid 5906] +++ exited with 0 +++ [pid 5910] <... write resumed>) = 4 [pid 5909] write(3, "1000", 4 [pid 5908] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5910] close(3 [pid 5909] <... write resumed>) = 4 [pid 5910] <... close resumed>) = 0 [pid 5908] <... bpf resumed>) = 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5910] write(1, "executing program\n", 18 [pid 5909] close(3 [pid 5910] <... write resumed>) = 18 [pid 5910] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5909] <... close resumed>) = 0 [pid 5908] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5910] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 executing program [pid 5909] write(1, "executing program\n", 18 [pid 5910] <... bpf resumed>) = 4 [pid 5909] <... write resumed>) = 18 [pid 5909] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5910] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5909] <... bpf resumed>) = 3 [pid 5908] <... bpf resumed>) = 5 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5912 attached ./strace-static-x86_64: Process 5911 attached [pid 5910] <... bpf resumed>) = 5 [pid 5909] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5912] set_robust_list(0x55556540f660, 24 [pid 5911] set_robust_list(0x55556540f660, 24 [pid 5908] exit_group(0 [pid 5912] <... set_robust_list resumed>) = 0 [pid 5911] <... set_robust_list resumed>) = 0 [pid 5910] exit_group(0 [pid 5909] <... bpf resumed>) = 4 [pid 5908] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5911 [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5912 [pid 5911] <... prctl resumed>) = 0 [pid 5910] <... exit_group resumed>) = ? [pid 5909] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5912] <... prctl resumed>) = 0 [pid 5911] setpgid(0, 0) = 0 [pid 5912] setpgid(0, 0 [pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5912] <... setpgid resumed>) = 0 [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5911] <... openat resumed>) = 3 [pid 5912] <... openat resumed>) = 3 [pid 5911] write(3, "1000", 4 [pid 5912] write(3, "1000", 4 [pid 5911] <... write resumed>) = 4 [pid 5911] close(3 [pid 5912] <... write resumed>) = 4 [pid 5911] <... close resumed>) = 0 [pid 5912] close(3 [pid 5911] write(1, "executing program\n", 18executing program executing program [pid 5912] <... close resumed>) = 0 [pid 5911] <... write resumed>) = 18 [pid 5912] write(1, "executing program\n", 18) = 18 [pid 5911] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5912] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5911] <... bpf resumed>) = 3 [pid 5912] <... bpf resumed>) = 3 [pid 5911] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5912] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5911] <... bpf resumed>) = 4 [pid 5912] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5911] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5908] +++ exited with 0 +++ [pid 5910] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5910, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5913 attached [pid 5913] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 5914 attached [pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5913 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5914 [pid 5914] set_robust_list(0x55556540f660, 24) = 0 [pid 5913] <... prctl resumed>) = 0 [pid 5913] setpgid(0, 0) = 0 [pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5914] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5913] <... openat resumed>) = 3 [pid 5912] <... bpf resumed>) = 5 [pid 5911] <... bpf resumed>) = 5 [pid 5909] <... bpf resumed>) = 5 [pid 5914] <... prctl resumed>) = 0 [pid 5913] write(3, "1000", 4 [pid 5912] exit_group(0 [pid 5911] exit_group(0 [pid 5909] exit_group(0 [pid 5914] setpgid(0, 0 [pid 5913] <... write resumed>) = 4 [pid 5909] <... exit_group resumed>) = ? executing program [pid 5914] <... setpgid resumed>) = 0 [pid 5913] close(3 [pid 5912] <... exit_group resumed>) = ? [pid 5911] <... exit_group resumed>) = ? [pid 5909] +++ exited with 0 +++ [pid 5913] <... close resumed>) = 0 [pid 5913] write(1, "executing program\n", 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5913] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5913] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5913] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5914] <... openat resumed>) = 3 [pid 5914] write(3, "1000", 4./strace-static-x86_64: Process 5915 attached ) = 4 [pid 5914] close(3 [pid 5915] set_robust_list(0x55556540f660, 24 [pid 5913] <... bpf resumed>) = 4 [pid 5915] <... set_robust_list resumed>) = 0 [pid 5914] <... close resumed>) = 0 [pid 5913] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5915 executing program [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5914] write(1, "executing program\n", 18) = 18 [pid 5915] <... prctl resumed>) = 0 [pid 5914] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5915] setpgid(0, 0) = 0 [pid 5914] <... bpf resumed>) = 3 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5914] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5915] <... openat resumed>) = 3 [pid 5912] +++ exited with 0 +++ [pid 5911] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5912, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5915] write(3, "1000", 4) = 4 [pid 5915] close(3) = 0 executing program [pid 5915] write(1, "executing program\n", 18 [pid 5914] <... bpf resumed>) = 4 [pid 5915] <... write resumed>) = 18 [pid 5915] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5914] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5915] <... bpf resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5915] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5916 attached [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5916 ./strace-static-x86_64: Process 5917 attached [pid 5916] set_robust_list(0x55556540f660, 24 [pid 5915] <... bpf resumed>) = 4 [pid 5914] <... bpf resumed>) = 5 [pid 5913] <... bpf resumed>) = 5 [pid 5917] set_robust_list(0x55556540f660, 24 [pid 5916] <... set_robust_list resumed>) = 0 [pid 5914] exit_group(0 [pid 5913] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5917 [pid 5917] <... set_robust_list resumed>) = 0 [pid 5915] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5913] <... exit_group resumed>) = ? [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5915] <... bpf resumed>) = 5 [pid 5914] <... exit_group resumed>) = ? [pid 5913] +++ exited with 0 +++ [pid 5917] <... prctl resumed>) = 0 [pid 5916] <... prctl resumed>) = 0 [pid 5915] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5915] <... exit_group resumed>) = ? [pid 5917] setpgid(0, 0 [pid 5916] setpgid(0, 0 [pid 5917] <... setpgid resumed>) = 0 [pid 5916] <... setpgid resumed>) = 0 [pid 5916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5917] write(3, "1000", 4 [pid 5916] <... openat resumed>) = 3 [pid 5916] write(3, "1000", 4 [pid 5917] <... write resumed>) = 4 [pid 5916] <... write resumed>) = 4 [pid 5917] close(3 [pid 5916] close(3executing program ) = 0 [pid 5917] <... close resumed>) = 0 [pid 5916] write(1, "executing program\n", 18 [pid 5917] write(1, "executing program\n", 18 [pid 5916] <... write resumed>) = 18 executing program [pid 5917] <... write resumed>) = 18 [pid 5916] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5917] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5916] <... bpf resumed>) = 3 [pid 5917] <... bpf resumed>) = 3 [pid 5916] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5917] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5916] <... bpf resumed>) = 4 [pid 5916] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5917] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5915] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5914] +++ exited with 0 +++ ./strace-static-x86_64: Process 5918 attached [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5914, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5918 [pid 5918] set_robust_list(0x55556540f660, 24 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5918] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5919 attached [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5919] set_robust_list(0x55556540f660, 24) = 0 [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5918] <... prctl resumed>) = 0 [pid 5917] <... bpf resumed>) = 5 [pid 5916] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5919 [pid 5918] setpgid(0, 0 [pid 5919] setpgid(0, 0 [pid 5917] exit_group(0 [pid 5919] <... setpgid resumed>) = 0 [pid 5918] <... setpgid resumed>) = 0 [pid 5917] <... exit_group resumed>) = ? [pid 5916] exit_group(0 [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5916] <... exit_group resumed>) = ? [pid 5919] <... openat resumed>) = 3 [pid 5919] write(3, "1000", 4 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5920 attached [pid 5919] <... write resumed>) = 4 [pid 5918] <... openat resumed>) = 3 [pid 5919] close(3 [pid 5918] write(3, "1000", 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5920 [pid 5920] set_robust_list(0x55556540f660, 24 [pid 5919] <... close resumed>) = 0 [pid 5918] <... write resumed>) = 4 executing program [pid 5920] <... set_robust_list resumed>) = 0 [pid 5919] write(1, "executing program\n", 18 [pid 5918] close(3 [pid 5920] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5919] <... write resumed>) = 18 [pid 5918] <... close resumed>) = 0 [pid 5919] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5918] write(1, "executing program\n", 18executing program [pid 5920] <... prctl resumed>) = 0 [pid 5919] <... bpf resumed>) = 3 [pid 5918] <... write resumed>) = 18 [pid 5918] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5920] setpgid(0, 0) = 0 [pid 5919] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5918] <... bpf resumed>) = 3 [pid 5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5919] <... bpf resumed>) = 4 [pid 5918] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5920] <... openat resumed>) = 3 [pid 5920] write(3, "1000", 4 [pid 5918] <... bpf resumed>) = 4 [pid 5920] <... write resumed>) = 4 [pid 5919] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5918] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5917] +++ exited with 0 +++ [pid 5920] close(3 [pid 5916] +++ exited with 0 +++ executing program [pid 5920] <... close resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5916, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5920] write(1, "executing program\n", 18) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5921 attached [pid 5920] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5919] <... bpf resumed>) = 5 [pid 5918] <... bpf resumed>) = 5 [pid 5920] <... bpf resumed>) = 3 [pid 5919] exit_group(0 [pid 5918] exit_group(0 [pid 5919] <... exit_group resumed>) = ? [pid 5921] set_robust_list(0x55556540f660, 24 [pid 5920] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5918] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5921] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5921 ./strace-static-x86_64: Process 5922 attached [pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5922] set_robust_list(0x55556540f660, 24) = 0 [pid 5922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5921] <... prctl resumed>) = 0 [pid 5920] <... bpf resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5922 [pid 5922] setpgid(0, 0) = 0 [pid 5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5921] setpgid(0, 0 [pid 5920] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5921] <... setpgid resumed>) = 0 [pid 5922] <... openat resumed>) = 3 [pid 5922] write(3, "1000", 4 [pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5919] +++ exited with 0 +++ [pid 5918] +++ exited with 0 +++ [pid 5922] <... write resumed>) = 4 [pid 5922] close(3 [pid 5921] <... openat resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5918, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5922] <... close resumed>) = 0 executing program [pid 5922] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5919, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5922] <... write resumed>) = 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5922] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5922] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5923 attached [pid 5921] write(3, "1000", 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5923] set_robust_list(0x55556540f660, 24 [pid 5922] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5921] <... write resumed>) = 4 [pid 5923] <... set_robust_list resumed>) = 0 [pid 5922] <... bpf resumed>) = 4 [pid 5921] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5923 [pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 5921] <... close resumed>) = 0 [pid 5921] write(1, "executing program\n", 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5921] <... write resumed>) = 18 [pid 5923] <... prctl resumed>) = 0 [pid 5922] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5923] setpgid(0, 0) = 0 [pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5924 attached [pid 5922] <... bpf resumed>) = 5 [pid 5921] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5920] <... bpf resumed>) = 5 [pid 5924] set_robust_list(0x55556540f660, 24 [pid 5923] write(3, "1000", 4 [pid 5922] exit_group(0 [pid 5921] <... bpf resumed>) = 3 [pid 5920] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5924 [pid 5924] <... set_robust_list resumed>) = 0 [pid 5923] <... write resumed>) = 4 [pid 5922] <... exit_group resumed>) = ? executing program [pid 5921] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5920] <... exit_group resumed>) = ? [pid 5924] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5923] close(3 [pid 5922] +++ exited with 0 +++ [pid 5924] <... prctl resumed>) = 0 [pid 5923] <... close resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5922, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5924] setpgid(0, 0 [pid 5923] write(1, "executing program\n", 18 [pid 5924] <... setpgid resumed>) = 0 [pid 5923] <... write resumed>) = 18 [pid 5924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5923] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5924] <... openat resumed>) = 3 [pid 5923] <... bpf resumed>) = 3 [pid 5921] <... bpf resumed>) = 4 [pid 5924] write(3, "1000", 4) = 4 [pid 5924] close(3 [pid 5923] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5921] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5920] +++ exited with 0 +++ executing program [pid 5924] <... close resumed>) = 0 [pid 5923] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5920, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5924] write(1, "executing program\n", 18) = 18 [pid 5924] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5923] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5924] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5924] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5926 attached ./strace-static-x86_64: Process 5925 attached [pid 5923] <... bpf resumed>) = 5 [pid 5921] <... bpf resumed>) = 5 [pid 5921] exit_group(0 [pid 5926] set_robust_list(0x55556540f660, 24 [pid 5925] set_robust_list(0x55556540f660, 24 [pid 5924] <... bpf resumed>) = 5 [pid 5923] exit_group(0 [pid 5921] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5925 [pid 5926] <... set_robust_list resumed>) = 0 [pid 5925] <... set_robust_list resumed>) = 0 [pid 5924] exit_group(0 [pid 5923] <... exit_group resumed>) = ? [pid 5921] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5926 [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5926] <... prctl resumed>) = 0 [pid 5924] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5921, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5926] setpgid(0, 0 [pid 5925] <... prctl resumed>) = 0 [pid 5926] <... setpgid resumed>) = 0 [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5925] setpgid(0, 0) = 0 [pid 5926] <... openat resumed>) = 3 [pid 5925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5926] write(3, "1000", 4) = 4 [pid 5925] <... openat resumed>) = 3 [pid 5923] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5923, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5926] close(3 [pid 5925] write(3, "1000", 4executing program [pid 5926] <... close resumed>) = 0 [pid 5925] <... write resumed>) = 4 [pid 5926] write(1, "executing program\n", 18 [pid 5925] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5926] <... write resumed>) = 18 [pid 5925] <... close resumed>) = 0 executing program [pid 5926] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5925] write(1, "executing program\n", 18 [pid 5926] <... bpf resumed>) = 3 [pid 5925] <... write resumed>) = 18 [pid 5924] +++ exited with 0 +++ [pid 5926] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5925] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5927 attached [pid 5926] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5924, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5927] set_robust_list(0x55556540f660, 24 [pid 5925] <... bpf resumed>) = 3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5927] <... set_robust_list resumed>) = 0 [pid 5926] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5925] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5928 attached [pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5927 [pid 5927] <... prctl resumed>) = 0 [pid 5927] setpgid(0, 0 [pid 5925] <... bpf resumed>) = 4 [pid 5928] set_robust_list(0x55556540f660, 24 [pid 5927] <... setpgid resumed>) = 0 [pid 5925] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5928 [pid 5928] <... set_robust_list resumed>) = 0 [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5928] <... prctl resumed>) = 0 [pid 5926] <... bpf resumed>) = 5 [pid 5925] <... bpf resumed>) = 5 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5925] exit_group(0 [pid 5927] write(3, "1000", 4 [pid 5925] <... exit_group resumed>) = ? [pid 5928] setpgid(0, 0 [pid 5927] <... write resumed>) = 4 [pid 5926] exit_group(0 [pid 5925] +++ exited with 0 +++ [pid 5928] <... setpgid resumed>) = 0 [pid 5927] close(3) = 0 [pid 5926] <... exit_group resumed>) = ? [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 5927] write(1, "executing program\n", 18 [pid 5926] +++ exited with 0 +++ [pid 5928] <... openat resumed>) = 3 [pid 5927] <... write resumed>) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5925, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5928] write(3, "1000", 4 [pid 5927] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5926, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5928] <... write resumed>) = 4 [pid 5927] <... bpf resumed>) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5928] close(3 [pid 5927] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 ./strace-static-x86_64: Process 5929 attached executing program ./strace-static-x86_64: Process 5930 attached [pid 5928] <... close resumed>) = 0 [pid 5927] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5929 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5929] set_robust_list(0x55556540f660, 24 [pid 5928] write(1, "executing program\n", 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5930 [pid 5929] <... set_robust_list resumed>) = 0 [pid 5928] <... write resumed>) = 18 [pid 5930] set_robust_list(0x55556540f660, 24 [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5928] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5929] <... prctl resumed>) = 0 [pid 5927] <... bpf resumed>) = 5 [pid 5928] <... bpf resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5929] setpgid(0, 0 [pid 5930] <... set_robust_list resumed>) = 0 [pid 5928] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5927] exit_group(0 [pid 5930] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5931 attached ) = 0 [pid 5929] <... setpgid resumed>) = 0 [pid 5930] setpgid(0, 0) = 0 [pid 5931] set_robust_list(0x55556540f660, 24 [pid 5930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5928] <... bpf resumed>) = 4 [pid 5927] <... exit_group resumed>) = ? [pid 5931] <... set_robust_list resumed>) = 0 [pid 5930] <... openat resumed>) = 3 [pid 5930] write(3, "1000", 4 [pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5929] <... openat resumed>) = 3 [pid 5928] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5927] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5931 [pid 5931] <... prctl resumed>) = 0 [pid 5931] setpgid(0, 0 [pid 5929] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5927, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5930] <... write resumed>) = 4 [pid 5929] <... write resumed>) = 4 [pid 5931] <... setpgid resumed>) = 0 [pid 5930] close(3) = 0 [pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5930] write(1, "executing program\n", 18) = 18 executing program [pid 5929] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5930] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5929] <... close resumed>) = 0 [pid 5930] <... bpf resumed>) = 3 [pid 5929] write(1, "executing program\n", 18 [pid 5931] <... openat resumed>) = 3 [pid 5930] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5929] <... write resumed>) = 18 [pid 5930] <... bpf resumed>) = 4 [pid 5929] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 ./strace-static-x86_64: Process 5932 attached [pid 5931] write(3, "1000", 4 [pid 5929] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5932] set_robust_list(0x55556540f660, 24 [pid 5931] <... write resumed>) = 4 [pid 5928] <... bpf resumed>) = 5 [pid 5932] <... set_robust_list resumed>) = 0 [pid 5931] close(3 [pid 5932] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5930] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5929] <... bpf resumed>) = 4 [pid 5932] <... prctl resumed>) = 0 [pid 5931] <... close resumed>) = 0 [pid 5928] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5932 executing program [pid 5932] setpgid(0, 0 [pid 5931] write(1, "executing program\n", 18 [pid 5930] <... bpf resumed>) = 5 [pid 5931] <... write resumed>) = 18 [pid 5929] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5928] <... exit_group resumed>) = ? [pid 5932] <... setpgid resumed>) = 0 [pid 5931] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5930] exit_group(0 [pid 5929] <... bpf resumed>) = 5 [pid 5932] <... openat resumed>) = 3 [pid 5932] write(3, "1000", 4) = 4 [pid 5932] close(3 [pid 5931] <... bpf resumed>) = 3 [pid 5930] <... exit_group resumed>) = ? [pid 5932] <... close resumed>) = 0 [pid 5929] exit_group(0 [pid 5928] +++ exited with 0 +++ [pid 5932] write(1, "executing program\n", 18executing program [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5928, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5932] <... write resumed>) = 18 [pid 5932] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5931] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5929] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5932] <... bpf resumed>) = 3 [pid 5931] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5933 attached [pid 5931] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5933] set_robust_list(0x55556540f660, 24 [pid 5932] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5930] +++ exited with 0 +++ [pid 5929] +++ exited with 0 +++ [pid 5933] <... set_robust_list resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5930, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5933 [pid 5933] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5932] <... bpf resumed>) = 4 [pid 5933] <... prctl resumed>) = 0 [pid 5932] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5933] setpgid(0, 0) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5935 attached ./strace-static-x86_64: Process 5934 attached ) = 3 [pid 5932] <... bpf resumed>) = 5 [pid 5931] <... bpf resumed>) = 5 [pid 5935] set_robust_list(0x55556540f660, 24 [pid 5933] write(3, "1000", 4 [pid 5931] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5934 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5935 [pid 5935] <... set_robust_list resumed>) = 0 [pid 5934] set_robust_list(0x55556540f660, 24 [pid 5933] <... write resumed>) = 4 [pid 5932] exit_group(0 [pid 5931] <... exit_group resumed>) = ? [pid 5935] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 5934] <... set_robust_list resumed>) = 0 [pid 5933] close(3 [pid 5932] <... exit_group resumed>) = ? [pid 5935] <... prctl resumed>) = 0 [pid 5933] <... close resumed>) = 0 [pid 5935] setpgid(0, 0 [pid 5933] write(1, "executing program\n", 18 [pid 5935] <... setpgid resumed>) = 0 [pid 5933] <... write resumed>) = 18 [pid 5935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5933] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5935] <... openat resumed>) = 3 [pid 5934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5933] <... bpf resumed>) = 3 [pid 5935] write(3, "1000", 4) = 4 [pid 5934] setpgid(0, 0 [pid 5933] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 executing program [pid 5935] close(3 [pid 5934] <... setpgid resumed>) = 0 [pid 5934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5935] <... close resumed>) = 0 [pid 5935] write(1, "executing program\n", 18) = 18 [pid 5934] <... openat resumed>) = 3 [pid 5933] <... bpf resumed>) = 4 [pid 5935] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5934] write(3, "1000", 4 [pid 5935] <... bpf resumed>) = 3 [pid 5933] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5934] <... write resumed>) = 4 [pid 5934] close(3) = 0 [pid 5935] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5934] write(1, "executing program\n", 18executing program [pid 5935] <... bpf resumed>) = 4 [pid 5935] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5934] <... write resumed>) = 18 [pid 5932] +++ exited with 0 +++ [pid 5931] +++ exited with 0 +++ [pid 5934] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5932, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5931, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5934] <... bpf resumed>) = 3 [pid 5934] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5934] <... bpf resumed>) = 4 [pid 5934] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5936 attached ./strace-static-x86_64: Process 5937 attached [pid 5936] set_robust_list(0x55556540f660, 24 [pid 5935] <... bpf resumed>) = 5 [pid 5934] <... bpf resumed>) = 5 [pid 5933] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5936 [pid 5937] set_robust_list(0x55556540f660, 24 [pid 5936] <... set_robust_list resumed>) = 0 [pid 5935] exit_group(0 [pid 5934] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5937 [pid 5937] <... set_robust_list resumed>) = 0 [pid 5936] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5933] exit_group(0 [pid 5937] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5933] <... exit_group resumed>) = ? [pid 5937] <... prctl resumed>) = 0 [pid 5936] <... prctl resumed>) = 0 [pid 5935] <... exit_group resumed>) = ? [pid 5934] <... exit_group resumed>) = ? [pid 5933] +++ exited with 0 +++ [pid 5937] setpgid(0, 0 [pid 5936] setpgid(0, 0 [pid 5937] <... setpgid resumed>) = 0 [pid 5937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5936] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5933, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5937] <... openat resumed>) = 3 [pid 5936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5937] write(3, "1000", 4) = 4 [pid 5937] close(3) = 0 [pid 5937] write(1, "executing program\n", 18executing program ) = 18 [pid 5937] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5936] <... openat resumed>) = 3 [pid 5937] <... bpf resumed>) = 3 [pid 5936] write(3, "1000", 4 [pid 5934] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5936] <... write resumed>) = 4 [pid 5937] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5934, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5938 attached [pid 5937] <... bpf resumed>) = 4 [pid 5936] close(3 [pid 5935] +++ exited with 0 +++ [pid 5937] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5936] <... close resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5936] write(1, "executing program\n", 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5938 executing program [pid 5938] set_robust_list(0x55556540f660, 24 [pid 5936] <... write resumed>) = 18 [pid 5938] <... set_robust_list resumed>) = 0 [pid 5936] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5936] <... bpf resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5938] setpgid(0, 0) = 0 [pid 5936] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5939 attached [pid 5938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5939] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5939 [pid 5939] <... set_robust_list resumed>) = 0 [pid 5939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5936] <... bpf resumed>) = 4 [pid 5938] <... openat resumed>) = 3 [pid 5939] <... prctl resumed>) = 0 [pid 5939] setpgid(0, 0) = 0 [pid 5938] write(3, "1000", 4 [pid 5937] <... bpf resumed>) = 5 [pid 5936] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5938] <... write resumed>) = 4 [pid 5939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] close(3 [pid 5937] exit_group(0 [pid 5936] <... bpf resumed>) = 5 [pid 5939] <... openat resumed>) = 3 [pid 5938] <... close resumed>) = 0 [pid 5937] <... exit_group resumed>) = ? executing program [pid 5938] write(1, "executing program\n", 18 [pid 5936] exit_group(0 [pid 5938] <... write resumed>) = 18 executing program [pid 5939] write(3, "1000", 4) = 4 [pid 5936] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5939] close(3 [pid 5938] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5939] <... close resumed>) = 0 [pid 5939] write(1, "executing program\n", 18) = 18 [pid 5939] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5939] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 ./strace-static-x86_64: Process 5940 attached [pid 5940] set_robust_list(0x55556540f660, 24) = 0 [pid 5939] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5938] <... bpf resumed>) = 3 [pid 5937] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5940 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5938] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5936] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5937, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5936, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5940] <... prctl resumed>) = 0 [pid 5940] setpgid(0, 0) = 0 [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5940] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5941 attached [pid 5938] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5941] set_robust_list(0x55556540f660, 24 [pid 5940] write(3, "1000", 4 [pid 5941] <... set_robust_list resumed>) = 0 [pid 5940] <... write resumed>) = 4 [pid 5941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5940] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5941 [pid 5941] <... prctl resumed>) = 0 [pid 5940] <... close resumed>) = 0 [pid 5941] setpgid(0, 0executing program [pid 5940] write(1, "executing program\n", 18) = 18 [pid 5941] <... setpgid resumed>) = 0 [pid 5940] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5940] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5942 attached [pid 5940] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5942] set_robust_list(0x55556540f660, 24 [pid 5941] <... openat resumed>) = 3 [pid 5940] <... bpf resumed>) = 4 [pid 5939] <... bpf resumed>) = 5 [pid 5938] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5942 [pid 5942] <... set_robust_list resumed>) = 0 [pid 5941] write(3, "1000", 4 [pid 5938] exit_group(0 [pid 5941] <... write resumed>) = 4 [pid 5942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5941] close(3 [pid 5940] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5938] <... exit_group resumed>) = ? executing program [pid 5942] <... prctl resumed>) = 0 [pid 5941] <... close resumed>) = 0 [pid 5940] <... bpf resumed>) = 5 [pid 5939] exit_group(0 [pid 5942] setpgid(0, 0 [pid 5941] write(1, "executing program\n", 18 [pid 5940] exit_group(0 [pid 5942] <... setpgid resumed>) = 0 [pid 5941] <... write resumed>) = 18 [pid 5940] <... exit_group resumed>) = ? [pid 5939] <... exit_group resumed>) = ? [pid 5942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5941] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5940] +++ exited with 0 +++ [pid 5938] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5940, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5942] <... openat resumed>) = 3 [pid 5942] write(3, "1000", 4 [pid 5941] <... bpf resumed>) = 3 [pid 5939] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5938, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5939, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5943 attached [pid 5942] <... write resumed>) = 4 executing program [pid 5941] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5943] set_robust_list(0x55556540f660, 24 [pid 5942] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5943 [pid 5941] <... bpf resumed>) = 4 [pid 5942] <... close resumed>) = 0 [pid 5942] write(1, "executing program\n", 18 [pid 5943] <... set_robust_list resumed>) = 0 [pid 5942] <... write resumed>) = 18 [pid 5943] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5942] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5944 attached [pid 5943] <... prctl resumed>) = 0 [pid 5944] set_robust_list(0x55556540f660, 24 [pid 5943] setpgid(0, 0 [pid 5942] <... bpf resumed>) = 3 [pid 5944] <... set_robust_list resumed>) = 0 [pid 5944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5943] <... setpgid resumed>) = 0 [pid 5942] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5941] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5944 [pid 5944] <... prctl resumed>) = 0 [pid 5944] setpgid(0, 0) = 0 [pid 5944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5942] <... bpf resumed>) = 4 [pid 5943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5944] <... openat resumed>) = 3 [pid 5943] <... openat resumed>) = 3 [pid 5942] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5944] write(3, "1000", 4) = 4 [pid 5944] close(3) = 0 [pid 5944] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5944] <... write resumed>) = 18 ./strace-static-x86_64: Process 5945 attached [pid 5943] write(3, "1000", 4 [pid 5944] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5942] <... bpf resumed>) = 5 [pid 5941] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5945 [pid 5943] <... write resumed>) = 4 [pid 5945] set_robust_list(0x55556540f660, 24 [pid 5944] <... bpf resumed>) = 3 [pid 5942] exit_group(0 [pid 5941] exit_group(0 [pid 5945] <... set_robust_list resumed>) = 0 [pid 5944] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5943] close(3 [pid 5942] <... exit_group resumed>) = ? [pid 5941] <... exit_group resumed>) = ? [pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5944] <... bpf resumed>) = 4 [pid 5945] <... prctl resumed>) = 0 [pid 5945] setpgid(0, 0 [pid 5943] <... close resumed>) = 0 [pid 5945] <... setpgid resumed>) = 0 [pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5944] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 executing program [pid 5943] write(1, "executing program\n", 18 [pid 5942] +++ exited with 0 +++ [pid 5941] +++ exited with 0 +++ [pid 5943] <... write resumed>) = 18 [pid 5945] <... openat resumed>) = 3 [pid 5944] <... bpf resumed>) = 5 [pid 5943] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5942, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5945] write(3, "1000", 4) = 4 [pid 5944] exit_group(0 [pid 5945] close(3 [pid 5944] <... exit_group resumed>) = ? [pid 5943] <... bpf resumed>) = 3 executing program [pid 5945] <... close resumed>) = 0 [pid 5943] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5945] write(1, "executing program\n", 18) = 18 [pid 5943] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5945] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5944] +++ exited with 0 +++ ./strace-static-x86_64: Process 5946 attached ./strace-static-x86_64: Process 5947 attached [pid 5945] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5944, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5946] set_robust_list(0x55556540f660, 24 [pid 5947] set_robust_list(0x55556540f660, 24 [pid 5946] <... set_robust_list resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5947] <... set_robust_list resumed>) = 0 [pid 5945] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5943] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5947 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5946 [pid 5947] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5946] <... prctl resumed>) = 0 [pid 5945] <... bpf resumed>) = 4 [pid 5947] <... prctl resumed>) = 0 [pid 5946] setpgid(0, 0 [pid 5945] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5947] setpgid(0, 0 [pid 5946] <... setpgid resumed>) = 0 [pid 5947] <... setpgid resumed>) = 0 [pid 5947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5947] write(3, "1000", 4) = 4 [pid 5946] <... openat resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 executing program [pid 5946] write(3, "1000", 4 [pid 5947] close(3 [pid 5946] <... write resumed>) = 4 [pid 5946] close(3) = 0 [pid 5946] write(1, "executing program\n", 18) = 18 [pid 5946] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5947] <... close resumed>) = 0 [pid 5946] <... bpf resumed>) = 3 [pid 5945] <... bpf resumed>) = 5 [pid 5943] <... bpf resumed>) = 5 [pid 5946] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5945] exit_group(0 [pid 5947] write(1, "executing program\n", 18 [pid 5946] <... bpf resumed>) = 4 executing program [pid 5945] <... exit_group resumed>) = ? [pid 5943] exit_group(0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5946] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5943] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5948 attached [pid 5947] <... write resumed>) = 18 [pid 5946] <... bpf resumed>) = 5 [pid 5943] +++ exited with 0 +++ [pid 5948] set_robust_list(0x55556540f660, 24) = 0 [pid 5947] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5946] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5943, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5948 [pid 5948] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5946] <... exit_group resumed>) = ? [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5948] <... prctl resumed>) = 0 [pid 5947] <... bpf resumed>) = 3 [pid 5948] setpgid(0, 0 [pid 5947] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5948] <... setpgid resumed>) = 0 [pid 5948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5947] <... bpf resumed>) = 4 [pid 5948] write(3, "1000", 4) = 4 [pid 5948] close(3) = 0 [pid 5948] write(1, "executing program\n", 18) = 18 [pid 5948] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5947] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5946] +++ exited with 0 +++ [pid 5945] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 5948] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5945, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5946, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5950 attached ./strace-static-x86_64: Process 5949 attached [pid 5948] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5949] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5949 [pid 5950] set_robust_list(0x55556540f660, 24 [pid 5949] <... set_robust_list resumed>) = 0 [pid 5950] <... set_robust_list resumed>) = 0 [pid 5949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5949] setpgid(0, 0) = 0 [pid 5950] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5948] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5950 ./strace-static-x86_64: Process 5951 attached [pid 5950] <... prctl resumed>) = 0 [pid 5949] <... openat resumed>) = 3 [pid 5948] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5947] <... bpf resumed>) = 5 [pid 5950] setpgid(0, 0 [pid 5947] exit_group(0 [pid 5951] set_robust_list(0x55556540f660, 24 [pid 5949] write(3, "1000", 4 [pid 5948] <... bpf resumed>) = 5 executing program [pid 5947] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5951 [pid 5950] <... setpgid resumed>) = 0 [pid 5951] <... set_robust_list resumed>) = 0 [pid 5949] <... write resumed>) = 4 [pid 5951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5949] close(3 [pid 5951] <... prctl resumed>) = 0 [pid 5950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5949] <... close resumed>) = 0 [pid 5951] setpgid(0, 0 [pid 5949] write(1, "executing program\n", 18) = 18 [pid 5951] <... setpgid resumed>) = 0 [pid 5949] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5950] <... openat resumed>) = 3 [pid 5948] exit_group(0 [pid 5950] write(3, "1000", 4 [pid 5948] <... exit_group resumed>) = ? [pid 5951] <... openat resumed>) = 3 [pid 5950] <... write resumed>) = 4 [pid 5949] <... bpf resumed>) = 3 [pid 5951] write(3, "1000", 4 [pid 5950] close(3 [pid 5949] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5951] <... write resumed>) = 4 [pid 5950] <... close resumed>) = 0 [pid 5951] close(3executing program [pid 5950] write(1, "executing program\n", 18 [pid 5949] <... bpf resumed>) = 4 [pid 5951] <... close resumed>) = 0 [pid 5950] <... write resumed>) = 18 [pid 5951] write(1, "executing program\n", 18 executing program [pid 5950] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5949] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5951] <... write resumed>) = 18 [pid 5950] <... bpf resumed>) = 3 [pid 5951] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5950] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5951] <... bpf resumed>) = 3 [pid 5950] <... bpf resumed>) = 4 [pid 5947] +++ exited with 0 +++ [pid 5951] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5947, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5950] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5948] +++ exited with 0 +++ [pid 5951] <... bpf resumed>) = 4 [pid 5951] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5948, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5952 attached [pid 5952] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5952 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5952] <... set_robust_list resumed>) = 0 [pid 5952] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5953 attached ) = 0 [pid 5953] set_robust_list(0x55556540f660, 24 [pid 5952] setpgid(0, 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5953 [pid 5953] <... set_robust_list resumed>) = 0 [pid 5952] <... setpgid resumed>) = 0 [pid 5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5953] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5952] <... openat resumed>) = 3 [pid 5953] <... prctl resumed>) = 0 [pid 5952] write(3, "1000", 4 [pid 5953] setpgid(0, 0 [pid 5952] <... write resumed>) = 4 [pid 5953] <... setpgid resumed>) = 0 [pid 5952] close(3 [pid 5953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5952] <... close resumed>) = 0 [pid 5953] <... openat resumed>) = 3 [pid 5952] write(1, "executing program\n", 18executing program [pid 5953] write(3, "1000", 4 [pid 5952] <... write resumed>) = 18 [pid 5953] <... write resumed>) = 4 [pid 5952] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5953] close(3executing program ) = 0 [pid 5952] <... bpf resumed>) = 3 [pid 5953] write(1, "executing program\n", 18 [pid 5952] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5953] <... write resumed>) = 18 [pid 5951] <... bpf resumed>) = 5 [pid 5950] <... bpf resumed>) = 5 [pid 5949] <... bpf resumed>) = 5 [pid 5953] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5950] exit_group(0 [pid 5951] exit_group(0 [pid 5950] <... exit_group resumed>) = ? [pid 5953] <... bpf resumed>) = 3 [pid 5952] <... bpf resumed>) = 4 [pid 5951] <... exit_group resumed>) = ? [pid 5950] +++ exited with 0 +++ [pid 5949] exit_group(0 [pid 5953] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5951] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5950, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5953] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5949] <... exit_group resumed>) = ? [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5949] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5949, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5952] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5953] <... bpf resumed>) = 5 [pid 5952] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5952] exit_group(0) = ? ./strace-static-x86_64: Process 5955 attached [pid 5952] +++ exited with 0 +++ ./strace-static-x86_64: Process 5954 attached ./strace-static-x86_64: Process 5956 attached [pid 5954] set_robust_list(0x55556540f660, 24 [pid 5953] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5952, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5956] set_robust_list(0x55556540f660, 24 [pid 5954] <... set_robust_list resumed>) = 0 [pid 5953] <... exit_group resumed>) = ? [pid 5956] <... set_robust_list resumed>) = 0 [pid 5955] set_robust_list(0x55556540f660, 24 [pid 5954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5956] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5954] <... prctl resumed>) = 0 [pid 5956] <... prctl resumed>) = 0 [pid 5955] <... set_robust_list resumed>) = 0 [pid 5954] setpgid(0, 0 [pid 5953] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5954 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5955 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5956 [pid 5956] setpgid(0, 0 [pid 5955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5954] <... setpgid resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5956] <... setpgid resumed>) = 0 [pid 5955] <... prctl resumed>) = 0 [pid 5954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5957 attached [pid 5955] setpgid(0, 0 [pid 5954] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5955] <... setpgid resumed>) = 0 [pid 5957] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 5958 attached ) = 0 [pid 5956] <... openat resumed>) = 3 [pid 5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5954] write(3, "1000", 4 [pid 5956] write(3, "1000", 4 [pid 5954] <... write resumed>) = 4 [pid 5957] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5956] <... write resumed>) = 4 [pid 5958] set_robust_list(0x55556540f660, 24 [pid 5957] <... prctl resumed>) = 0 [pid 5956] close(3 [pid 5955] <... openat resumed>) = 3 [pid 5954] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5957 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5958 executing program executing program [pid 5958] <... set_robust_list resumed>) = 0 [pid 5957] setpgid(0, 0 [pid 5955] write(3, "1000", 4) = 4 [pid 5957] <... setpgid resumed>) = 0 [pid 5956] <... close resumed>) = 0 [pid 5954] <... close resumed>) = 0 [pid 5957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5955] close(3 [pid 5956] write(1, "executing program\n", 18 [pid 5957] <... openat resumed>) = 3 [pid 5954] write(1, "executing program\n", 18 [pid 5958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5957] write(3, "1000", 4 [pid 5956] <... write resumed>) = 18 [pid 5955] <... close resumed>) = 0 [pid 5954] <... write resumed>) = 18 [pid 5958] <... prctl resumed>) = 0 [pid 5957] <... write resumed>) = 4 [pid 5956] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5955] write(1, "executing program\n", 18 [pid 5954] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5958] setpgid(0, 0 [pid 5957] close(3 [pid 5956] <... bpf resumed>) = 3 [pid 5955] <... write resumed>) = 18 [pid 5954] <... bpf resumed>) = 3 [pid 5957] <... close resumed>) = 0 [pid 5956] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5955] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5954] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5958] <... setpgid resumed>) = 0 executing program [pid 5957] write(1, "executing program\n", 18 [pid 5956] <... bpf resumed>) = 4 [pid 5955] <... bpf resumed>) = 3 [pid 5954] <... bpf resumed>) = 4 [pid 5957] <... write resumed>) = 18 [pid 5956] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5955] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5954] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5957] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5956] <... bpf resumed>) = 5 [pid 5954] <... bpf resumed>) = 5 [pid 5958] <... openat resumed>) = 3 [pid 5957] <... bpf resumed>) = 3 [pid 5956] exit_group(0 [pid 5958] write(3, "1000", 4 [pid 5957] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5955] <... bpf resumed>) = 4 [pid 5956] <... exit_group resumed>) = ? [pid 5958] <... write resumed>) = 4 [pid 5957] <... bpf resumed>) = 4 [pid 5955] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5958] close(3 [pid 5954] exit_group(0 [pid 5958] <... close resumed>) = 0 [pid 5957] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5954] <... exit_group resumed>) = ? executing program [pid 5958] write(1, "executing program\n", 18) = 18 [pid 5958] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5958] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5958] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5956] +++ exited with 0 +++ [pid 5955] <... bpf resumed>) = 5 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5956, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5957] <... bpf resumed>) = 5 [pid 5955] exit_group(0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5958] <... bpf resumed>) = 5 [pid 5957] exit_group(0 [pid 5954] +++ exited with 0 +++ [pid 5842] <... restart_syscall resumed>) = 0 [pid 5957] <... exit_group resumed>) = ? [pid 5958] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5957] +++ exited with 0 +++ ./strace-static-x86_64: Process 5959 attached [pid 5958] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5954, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5955] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5959] set_robust_list(0x55556540f660, 24) = 0 [pid 5959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5960 attached [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5957, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5959 [pid 5960] set_robust_list(0x55556540f660, 24 [pid 5959] setpgid(0, 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5960] <... set_robust_list resumed>) = 0 [pid 5959] <... setpgid resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5960] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5960 [pid 5960] <... prctl resumed>) = 0 [pid 5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5960] setpgid(0, 0) = 0 [pid 5960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5959] <... openat resumed>) = 3 [pid 5958] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5960] <... openat resumed>) = 3 [pid 5959] write(3, "1000", 4 [pid 5955] +++ exited with 0 +++ [pid 5960] write(3, "1000", 4 [pid 5959] <... write resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5958, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5960] <... write resumed>) = 4 [pid 5959] close(3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5960] close(3executing program executing program [pid 5959] <... close resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5960] <... close resumed>) = 0 [pid 5959] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5960] write(1, "executing program\n", 18 [pid 5959] <... write resumed>) = 18 [pid 5960] <... write resumed>) = 18 [pid 5959] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5960] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5961 attached [pid 5960] <... bpf resumed>) = 3 [pid 5959] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5962 attached [pid 5961] set_robust_list(0x55556540f660, 24 [pid 5960] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5959] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5963 attached [pid 5962] set_robust_list(0x55556540f660, 24 [pid 5961] <... set_robust_list resumed>) = 0 [pid 5960] <... bpf resumed>) = 4 [pid 5959] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5961 [pid 5963] set_robust_list(0x55556540f660, 24 [pid 5962] <... set_robust_list resumed>) = 0 [pid 5961] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5963 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5962 [pid 5963] <... set_robust_list resumed>) = 0 [pid 5960] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5959] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5963] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5961] <... prctl resumed>) = 0 [pid 5962] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5963] <... prctl resumed>) = 0 [pid 5962] <... prctl resumed>) = 0 [pid 5961] setpgid(0, 0 [pid 5960] <... bpf resumed>) = 5 [pid 5959] <... bpf resumed>) = 5 [pid 5962] setpgid(0, 0 [pid 5961] <... setpgid resumed>) = 0 [pid 5960] exit_group(0 [pid 5959] exit_group(0 [pid 5963] setpgid(0, 0 [pid 5962] <... setpgid resumed>) = 0 [pid 5961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5960] <... exit_group resumed>) = ? [pid 5959] <... exit_group resumed>) = ? [pid 5963] <... setpgid resumed>) = 0 [pid 5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5961] <... openat resumed>) = 3 [pid 5960] +++ exited with 0 +++ [pid 5963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5962] <... openat resumed>) = 3 [pid 5961] write(3, "1000", 4 [pid 5959] +++ exited with 0 +++ [pid 5963] <... openat resumed>) = 3 [pid 5962] write(3, "1000", 4 [pid 5961] <... write resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5960, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5959, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5963] write(3, "1000", 4 [pid 5962] <... write resumed>) = 4 [pid 5961] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5964 attached [pid 5963] <... write resumed>) = 4 [pid 5962] close(3 [pid 5961] <... close resumed>) = 0 [pid 5964] set_robust_list(0x55556540f660, 24 [pid 5963] close(3executing program [pid 5962] <... close resumed>) = 0 [pid 5961] write(1, "executing program\n", 18executing program [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5964 [pid 5964] <... set_robust_list resumed>) = 0 [pid 5963] <... close resumed>) = 0 [pid 5962] write(1, "executing program\n", 18executing program [pid 5961] <... write resumed>) = 18 [pid 5964] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5963] write(1, "executing program\n", 18 [pid 5962] <... write resumed>) = 18 [pid 5961] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5964] <... prctl resumed>) = 0 [pid 5963] <... write resumed>) = 18 [pid 5962] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5961] <... bpf resumed>) = 3 [pid 5964] setpgid(0, 0 [pid 5963] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5962] <... bpf resumed>) = 3 [pid 5961] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5964] <... setpgid resumed>) = 0 [pid 5963] <... bpf resumed>) = 3 [pid 5962] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5961] <... bpf resumed>) = 4 [pid 5964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5963] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5962] <... bpf resumed>) = 4 [pid 5961] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5964] <... openat resumed>) = 3 [pid 5963] <... bpf resumed>) = 4 [pid 5964] write(3, "1000", 4 [pid 5963] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5961] <... bpf resumed>) = 5 [pid 5964] <... write resumed>) = 4 [pid 5963] <... bpf resumed>) = 5 [pid 5962] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5961] exit_group(0 [pid 5964] close(3 [pid 5962] <... bpf resumed>) = 5 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5965 attached [pid 5964] <... close resumed>) = 0 [pid 5963] exit_group(0 [pid 5962] exit_group(0 [pid 5961] <... exit_group resumed>) = ? executing program [pid 5964] write(1, "executing program\n", 18 [pid 5963] <... exit_group resumed>) = ? [pid 5962] <... exit_group resumed>) = ? [pid 5961] +++ exited with 0 +++ [pid 5965] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5965 [pid 5964] <... write resumed>) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5961, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5965] <... set_robust_list resumed>) = 0 [pid 5964] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5964] <... bpf resumed>) = 3 [pid 5965] <... prctl resumed>) = 0 [pid 5964] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5965] setpgid(0, 0) = 0 [pid 5964] <... bpf resumed>) = 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5964] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5965] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5965] write(3, "1000", 4./strace-static-x86_64: Process 5966 attached ) = 4 [pid 5963] +++ exited with 0 +++ [pid 5965] close(3) = 0 [pid 5966] set_robust_list(0x55556540f660, 24 [pid 5965] write(1, "executing program\n", 18executing program [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5966] <... set_robust_list resumed>) = 0 [pid 5965] <... write resumed>) = 18 [pid 5962] +++ exited with 0 +++ [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5966 [pid 5965] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5962, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5966] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5965] <... bpf resumed>) = 3 [pid 5966] <... prctl resumed>) = 0 [pid 5965] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5966] setpgid(0, 0) = 0 [pid 5965] <... bpf resumed>) = 4 [pid 5966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5965] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5966] write(3, "1000", 4) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5966] close(3) = 0 [pid 5847] <... restart_syscall resumed>) = 0 executing program [pid 5966] write(1, "executing program\n", 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5966] <... write resumed>) = 18 ./strace-static-x86_64: Process 5967 attached [pid 5966] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5967 ./strace-static-x86_64: Process 5968 attached [pid 5967] set_robust_list(0x55556540f660, 24 [pid 5966] <... bpf resumed>) = 3 [pid 5968] set_robust_list(0x55556540f660, 24 [pid 5967] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5968 [pid 5967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5966] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5968] <... set_robust_list resumed>) = 0 [pid 5967] <... prctl resumed>) = 0 [pid 5967] setpgid(0, 0 [pid 5968] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5967] <... setpgid resumed>) = 0 [pid 5968] <... prctl resumed>) = 0 [pid 5966] <... bpf resumed>) = 4 [pid 5967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5968] setpgid(0, 0) = 0 [pid 5967] <... openat resumed>) = 3 [pid 5966] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5964] <... bpf resumed>) = 5 [pid 5966] <... bpf resumed>) = 5 [pid 5968] <... openat resumed>) = 3 [pid 5967] write(3, "1000", 4 [pid 5965] <... bpf resumed>) = 5 [pid 5964] exit_group(0 [pid 5968] write(3, "1000", 4 [pid 5967] <... write resumed>) = 4 [pid 5966] exit_group(0 [pid 5965] exit_group(0 [pid 5964] <... exit_group resumed>) = ? [pid 5968] <... write resumed>) = 4 [pid 5967] close(3 [pid 5966] <... exit_group resumed>) = ? executing program executing program [pid 5965] <... exit_group resumed>) = ? [pid 5964] +++ exited with 0 +++ [pid 5968] close(3 [pid 5967] <... close resumed>) = 0 [pid 5967] write(1, "executing program\n", 18 [pid 5968] <... close resumed>) = 0 [pid 5967] <... write resumed>) = 18 [pid 5968] write(1, "executing program\n", 18) = 18 [pid 5967] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5968] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5967] <... bpf resumed>) = 3 [pid 5968] <... bpf resumed>) = 3 [pid 5967] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5968] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5967] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5964, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5968] <... bpf resumed>) = 4 [pid 5967] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5968] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5966] +++ exited with 0 +++ [pid 5965] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5965, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5966, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5969 attached [pid 5969] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5969 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5969] <... set_robust_list resumed>) = 0 [pid 5969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5969] setpgid(0, 0) = 0 [pid 5969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5969] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5970 attached [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5970] set_robust_list(0x55556540f660, 24 [pid 5969] write(3, "1000", 4 [pid 5968] <... bpf resumed>) = 5 [pid 5967] <... bpf resumed>) = 5 [pid 5970] <... set_robust_list resumed>) = 0 [pid 5969] <... write resumed>) = 4 [pid 5968] exit_group(0 [pid 5970] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5969] close(3 [pid 5968] <... exit_group resumed>) = ? [pid 5967] exit_group(0./strace-static-x86_64: Process 5971 attached [pid 5970] <... prctl resumed>) = 0 [pid 5969] <... close resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5970 executing program [pid 5969] write(1, "executing program\n", 18 [pid 5970] setpgid(0, 0 [pid 5969] <... write resumed>) = 18 [pid 5967] <... exit_group resumed>) = ? [pid 5971] set_robust_list(0x55556540f660, 24 [pid 5970] <... setpgid resumed>) = 0 [pid 5969] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5971 [pid 5971] <... set_robust_list resumed>) = 0 [pid 5971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5969] <... bpf resumed>) = 3 [pid 5971] <... prctl resumed>) = 0 [pid 5970] <... openat resumed>) = 3 [pid 5969] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5971] setpgid(0, 0 [pid 5970] write(3, "1000", 4 [pid 5969] <... bpf resumed>) = 4 [pid 5970] <... write resumed>) = 4 [pid 5970] close(3) = 0 [pid 5971] <... setpgid resumed>) = 0 [pid 5969] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5968] +++ exited with 0 +++ [pid 5971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5970] write(1, "executing program\n", 18executing program [pid 5967] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5968, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5970] <... write resumed>) = 18 [pid 5970] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5970] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5971] <... openat resumed>) = 3 [pid 5971] write(3, "1000", 4 [pid 5970] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5971] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5970] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5973 attached ./strace-static-x86_64: Process 5972 attached [pid 5971] close(3) = 0 [pid 5973] set_robust_list(0x55556540f660, 24 [pid 5972] set_robust_list(0x55556540f660, 24 [pid 5971] write(1, "executing program\n", 18executing program [pid 5973] <... set_robust_list resumed>) = 0 [pid 5972] <... set_robust_list resumed>) = 0 [pid 5971] <... write resumed>) = 18 [pid 5973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5973 [pid 5973] <... prctl resumed>) = 0 [pid 5972] setpgid(0, 0 [pid 5971] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5972 [pid 5973] setpgid(0, 0) = 0 [pid 5972] <... setpgid resumed>) = 0 [pid 5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5971] <... bpf resumed>) = 3 [pid 5970] <... bpf resumed>) = 5 [pid 5969] <... bpf resumed>) = 5 [pid 5973] <... openat resumed>) = 3 [pid 5972] <... openat resumed>) = 3 [pid 5971] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5973] write(3, "1000", 4 [pid 5972] write(3, "1000", 4 [pid 5970] exit_group(0 [pid 5969] exit_group(0 [pid 5973] <... write resumed>) = 4 [pid 5972] <... write resumed>) = 4 [pid 5971] <... bpf resumed>) = 4 [pid 5973] close(3 [pid 5970] <... exit_group resumed>) = ? [pid 5969] <... exit_group resumed>) = ? [pid 5973] <... close resumed>) = 0 [pid 5972] close(3 [pid 5971] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5970] +++ exited with 0 +++ [pid 5973] write(1, "executing program\n", 18 [pid 5972] <... close resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5970, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5973] <... write resumed>) = 18 [pid 5972] write(1, "executing program\n", 18 [pid 5973] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5972] <... write resumed>) = 18 [pid 5972] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5973] <... bpf resumed>) = 3 [pid 5972] <... bpf resumed>) = 3 [pid 5969] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5973] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5972] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5975 attached [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5969, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5975 [pid 5973] <... bpf resumed>) = 4 [pid 5972] <... bpf resumed>) = 4 [pid 5973] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5972] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5975] set_robust_list(0x55556540f660, 24) = 0 [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5973] <... bpf resumed>) = 5 [pid 5972] <... bpf resumed>) = 5 [pid 5971] <... bpf resumed>) = 5 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5975] setpgid(0, 0 [pid 5973] exit_group(0 [pid 5972] exit_group(0 [pid 5971] exit_group(0 [pid 5975] <... setpgid resumed>) = 0 [pid 5973] <... exit_group resumed>) = ? [pid 5972] <... exit_group resumed>) = ? [pid 5971] <... exit_group resumed>) = ? [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5973] +++ exited with 0 +++ [pid 5972] +++ exited with 0 +++ [pid 5971] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5972, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5975] <... openat resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5973, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5975] write(3, "1000", 4./strace-static-x86_64: Process 5976 attached [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5976] set_robust_list(0x55556540f660, 24 [pid 5975] <... write resumed>) = 4 [pid 5976] <... set_robust_list resumed>) = 0 [pid 5975] close(3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5975] <... close resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5976 [pid 5976] <... prctl resumed>) = 0 executing program [pid 5975] write(1, "executing program\n", 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5977 attached [pid 5976] setpgid(0, 0 [pid 5975] <... write resumed>) = 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5976] <... setpgid resumed>) = 0 [pid 5975] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5978 attached [pid 5976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5975] <... bpf resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5977 [pid 5977] set_robust_list(0x55556540f660, 24 [pid 5976] <... openat resumed>) = 3 [pid 5975] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5979 attached [pid 5977] <... set_robust_list resumed>) = 0 [pid 5976] write(3, "1000", 4) = 4 [pid 5979] set_robust_list(0x55556540f660, 24 [pid 5977] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5976] close(3 [pid 5979] <... set_robust_list resumed>) = 0 [pid 5976] <... close resumed>) = 0 [pid 5975] <... bpf resumed>) = 4 [pid 5979] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5978] set_robust_list(0x55556540f660, 24 [pid 5977] <... prctl resumed>) = 0 executing program [pid 5976] write(1, "executing program\n", 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5979 [pid 5978] <... set_robust_list resumed>) = 0 [pid 5979] <... prctl resumed>) = 0 [pid 5977] setpgid(0, 0 [pid 5976] <... write resumed>) = 18 [pid 5975] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5979] setpgid(0, 0 [pid 5978] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5977] <... setpgid resumed>) = 0 [pid 5976] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5978 [pid 5979] <... setpgid resumed>) = 0 [pid 5978] <... prctl resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5976] <... bpf resumed>) = 3 [pid 5979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5978] setpgid(0, 0 [pid 5975] <... bpf resumed>) = 5 [pid 5978] <... setpgid resumed>) = 0 [pid 5979] <... openat resumed>) = 3 [pid 5976] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5979] write(3, "1000", 4 [pid 5978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5977] <... openat resumed>) = 3 [pid 5976] <... bpf resumed>) = 4 [pid 5975] exit_group(0 [pid 5979] <... write resumed>) = 4 [pid 5977] write(3, "1000", 4 [pid 5979] close(3 [pid 5975] <... exit_group resumed>) = ? [pid 5979] <... close resumed>) = 0 [pid 5978] <... openat resumed>) = 3 [pid 5977] <... write resumed>) = 4 [pid 5976] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5975] +++ exited with 0 +++ executing program [pid 5979] write(1, "executing program\n", 18) = 18 [pid 5977] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5975, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5978] write(3, "1000", 4 [pid 5979] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5977] <... close resumed>) = 0 [pid 5978] <... write resumed>) = 4 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5979] <... bpf resumed>) = 3 [pid 5978] close(3 [pid 5977] write(1, "executing program\n", 18) = 18 executing program [pid 5979] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5978] <... close resumed>) = 0 executing program [pid 5977] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5978] write(1, "executing program\n", 18 [pid 5979] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5978] <... write resumed>) = 18 [pid 5977] <... bpf resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5978] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5977] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5979] <... bpf resumed>) = 5 [pid 5978] <... bpf resumed>) = 3 [pid 5976] <... bpf resumed>) = 5 [pid 5979] exit_group(0) = ? [pid 5979] +++ exited with 0 +++ [pid 5978] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5977] <... bpf resumed>) = 4 [pid 5976] exit_group(0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5978] <... bpf resumed>) = 4 [pid 5978] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5980 attached ) = 5 [pid 5977] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5976] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5979, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5980] set_robust_list(0x55556540f660, 24 [pid 5977] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5980 [pid 5978] exit_group(0 [pid 5976] +++ exited with 0 +++ [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5980] <... set_robust_list resumed>) = 0 [pid 5978] <... exit_group resumed>) = ? [pid 5977] exit_group(0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5977] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5976, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5980] setpgid(0, 0) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5981 attached [pid 5980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5982 attached [pid 5981] set_robust_list(0x55556540f660, 24 [pid 5980] <... openat resumed>) = 3 [pid 5981] <... set_robust_list resumed>) = 0 [pid 5980] write(3, "1000", 4 [pid 5982] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5981 [pid 5981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5982 [pid 5982] <... set_robust_list resumed>) = 0 [pid 5981] <... prctl resumed>) = 0 [pid 5980] <... write resumed>) = 4 [pid 5982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5981] setpgid(0, 0 [pid 5980] close(3 executing program [pid 5982] <... prctl resumed>) = 0 [pid 5981] <... setpgid resumed>) = 0 [pid 5980] <... close resumed>) = 0 [pid 5978] +++ exited with 0 +++ [pid 5977] +++ exited with 0 +++ [pid 5982] setpgid(0, 0 [pid 5980] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5978, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5982] <... setpgid resumed>) = 0 [pid 5981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5980] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5980] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5982] <... openat resumed>) = 3 [pid 5981] <... openat resumed>) = 3 [pid 5980] <... bpf resumed>) = 3 [pid 5981] write(3, "1000", 4 [pid 5980] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5982] write(3, "1000", 4 [pid 5981] <... write resumed>) = 4 [pid 5980] <... bpf resumed>) = 4 [pid 5981] close(3 [pid 5982] <... write resumed>) = 4 [pid 5981] <... close resumed>) = 0 [pid 5980] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5982] close(3 [pid 5981] write(1, "executing program\n", 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5983 attached [pid 5982] <... close resumed>) = 0 [pid 5981] <... write resumed>) = 18 executing program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5982] write(1, "executing program\n", 18 [pid 5981] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5984 attached [pid 5983] set_robust_list(0x55556540f660, 24 [pid 5982] <... write resumed>) = 18 [pid 5981] <... bpf resumed>) = 3 [pid 5980] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5983 [pid 5983] <... set_robust_list resumed>) = 0 [pid 5984] set_robust_list(0x55556540f660, 24 [pid 5983] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5980] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5984 [pid 5980] <... exit_group resumed>) = ? [pid 5984] <... set_robust_list resumed>) = 0 [pid 5983] <... prctl resumed>) = 0 [pid 5982] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5981] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5980] +++ exited with 0 +++ [pid 5984] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5983] setpgid(0, 0 [pid 5982] <... bpf resumed>) = 3 [pid 5981] <... bpf resumed>) = 4 [pid 5984] <... prctl resumed>) = 0 [pid 5983] <... setpgid resumed>) = 0 [pid 5982] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5984] setpgid(0, 0 [pid 5983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5982] <... bpf resumed>) = 4 [pid 5981] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5980, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5984] <... setpgid resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5982] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5983] <... openat resumed>) = 3 [pid 5984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5983] write(3, "1000", 4) = 4 [pid 5984] <... openat resumed>) = 3 [pid 5983] close(3executing program ) = 0 [pid 5984] write(3, "1000", 4 [pid 5983] write(1, "executing program\n", 18 [pid 5984] <... write resumed>) = 4 [pid 5983] <... write resumed>) = 18 [pid 5984] close(3) = 0 [pid 5983] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5984] write(1, "executing program\n", 18 [pid 5845] <... restart_syscall resumed>) = 0 executing program [pid 5983] <... bpf resumed>) = 3 [pid 5984] <... write resumed>) = 18 [pid 5983] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5984] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5983] <... bpf resumed>) = 4 [pid 5982] <... bpf resumed>) = 5 [pid 5981] <... bpf resumed>) = 5 [pid 5984] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5983] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5982] exit_group(0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5983] <... bpf resumed>) = 5 [pid 5982] <... exit_group resumed>) = ? [pid 5981] exit_group(0) = ? [pid 5984] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5985 attached [pid 5984] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5983] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5985 [pid 5983] <... exit_group resumed>) = ? [pid 5985] set_robust_list(0x55556540f660, 24) = 0 [pid 5985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5985] setpgid(0, 0 [pid 5981] +++ exited with 0 +++ [pid 5985] <... setpgid resumed>) = 0 [pid 5985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5981, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5985] <... openat resumed>) = 3 [pid 5985] write(3, "1000", 4) = 4 [pid 5985] close(3) = 0 executing program [pid 5985] write(1, "executing program\n", 18) = 18 [pid 5985] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5985] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5984] <... bpf resumed>) = 5 [pid 5984] exit_group(0 [pid 5985] <... bpf resumed>) = 4 [pid 5984] <... exit_group resumed>) = ? [pid 5985] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5982] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5982, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5986 attached ./strace-static-x86_64: Process 5987 attached [pid 5984] +++ exited with 0 +++ [pid 5983] +++ exited with 0 +++ [pid 5986] set_robust_list(0x55556540f660, 24 [pid 5987] set_robust_list(0x55556540f660, 24 [pid 5986] <... set_robust_list resumed>) = 0 [pid 5986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5986] setpgid(0, 0 [pid 5987] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5986 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5984, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5987 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5986] <... setpgid resumed>) = 0 [pid 5986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5987] <... prctl resumed>) = 0 [pid 5986] <... openat resumed>) = 3 [pid 5985] <... bpf resumed>) = 5 [pid 5987] setpgid(0, 0 [pid 5986] write(3, "1000", 4) = 4 [pid 5985] exit_group(0 [pid 5987] <... setpgid resumed>) = 0 [pid 5986] close(3 [pid 5985] <... exit_group resumed>) = ? [pid 5987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5986] <... close resumed>) = 0 executing program [pid 5985] +++ exited with 0 +++ [pid 5986] write(1, "executing program\n", 18) = 18 [pid 5986] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5987] <... openat resumed>) = 3 [pid 5986] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5985, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5986] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5988 attached ) = 4 [pid 5987] write(3, "1000", 4 [pid 5988] set_robust_list(0x55556540f660, 24 [pid 5986] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5988] <... set_robust_list resumed>) = 0 [pid 5988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5988] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5989 attached [pid 5988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5987] <... write resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5989 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5988 [pid 5987] close(3) = 0 [pid 5989] set_robust_list(0x55556540f660, 24 [pid 5988] <... openat resumed>) = 3 [pid 5987] write(1, "executing program\n", 18executing program [pid 5989] <... set_robust_list resumed>) = 0 [pid 5987] <... write resumed>) = 18 [pid 5989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5988] write(3, "1000", 4 [pid 5987] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5989] <... prctl resumed>) = 0 [pid 5988] <... write resumed>) = 4 [pid 5989] setpgid(0, 0 [pid 5988] close(3 [pid 5987] <... bpf resumed>) = 3 [pid 5986] <... bpf resumed>) = 5 [pid 5989] <... setpgid resumed>) = 0 [pid 5988] <... close resumed>) = 0 [pid 5987] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5986] exit_group(0 [pid 5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5988] write(1, "executing program\n", 18 [pid 5986] <... exit_group resumed>) = ? [pid 5987] <... bpf resumed>) = 4 [pid 5986] +++ exited with 0 +++ executing program [pid 5989] <... openat resumed>) = 3 [pid 5988] <... write resumed>) = 18 [pid 5987] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5986, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5988] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5989] write(3, "1000", 4 [pid 5988] <... bpf resumed>) = 3 [pid 5989] <... write resumed>) = 4 [pid 5988] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5989] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5989] <... close resumed>) = 0 [pid 5988] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5990 attached [pid 5989] write(1, "executing program\n", 18executing program [pid 5988] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5990] set_robust_list(0x55556540f660, 24 [pid 5989] <... write resumed>) = 18 [pid 5987] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5991 attached [pid 5990] <... set_robust_list resumed>) = 0 [pid 5989] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5988] <... bpf resumed>) = 5 [pid 5987] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5990 [pid 5991] set_robust_list(0x55556540f660, 24 [pid 5990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5989] <... bpf resumed>) = 3 [pid 5987] <... exit_group resumed>) = ? [pid 5991] <... set_robust_list resumed>) = 0 [pid 5990] <... prctl resumed>) = 0 [pid 5989] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5988] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5991 [pid 5990] setpgid(0, 0 [pid 5989] <... bpf resumed>) = 4 [pid 5988] <... exit_group resumed>) = ? [pid 5991] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5990] <... setpgid resumed>) = 0 [pid 5991] <... prctl resumed>) = 0 [pid 5991] setpgid(0, 0 [pid 5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5991] <... setpgid resumed>) = 0 [pid 5990] <... openat resumed>) = 3 [pid 5989] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5990] write(3, "1000", 4 [pid 5991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5990] <... write resumed>) = 4 [pid 5990] close(3 [pid 5991] <... openat resumed>) = 3 [pid 5990] <... close resumed>) = 0 executing program [pid 5990] write(1, "executing program\n", 18) = 18 [pid 5990] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5991] write(3, "1000", 4 [pid 5990] <... bpf resumed>) = 3 [pid 5990] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5991] <... write resumed>) = 4 [pid 5990] <... bpf resumed>) = 4 [pid 5991] close(3 [pid 5990] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5991] <... close resumed>) = 0 [pid 5991] write(1, "executing program\n", 18executing program [pid 5988] +++ exited with 0 +++ [pid 5987] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5988, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5991] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5991] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5991] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5990] <... bpf resumed>) = 5 [pid 5989] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5992 attached [pid 5991] <... bpf resumed>) = 4 [pid 5989] exit_group(0) = ? ./strace-static-x86_64: Process 5993 attached [pid 5990] exit_group(0 [pid 5991] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5993] set_robust_list(0x55556540f660, 24 [pid 5992] set_robust_list(0x55556540f660, 24 [pid 5991] exit_group(0 [pid 5990] <... exit_group resumed>) = ? [pid 5989] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5993 [pid 5993] <... set_robust_list resumed>) = 0 [pid 5991] <... exit_group resumed>) = ? [pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5992] <... set_robust_list resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5992 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5993] setpgid(0, 0 [pid 5992] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5993] <... setpgid resumed>) = 0 [pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5994 attached ) = 3 [pid 5994] set_robust_list(0x55556540f660, 24) = 0 [pid 5993] write(3, "1000", 4 [pid 5994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5993] <... write resumed>) = 4 [pid 5992] <... prctl resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5994 [pid 5993] close(3 [pid 5992] setpgid(0, 0 [pid 5994] <... prctl resumed>) = 0 [pid 5993] <... close resumed>) = 0 [pid 5992] <... setpgid resumed>) = 0 [pid 5994] setpgid(0, 0 [pid 5993] write(1, "executing program\n", 18executing program [pid 5994] <... setpgid resumed>) = 0 [pid 5993] <... write resumed>) = 18 [pid 5992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5993] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5994] <... openat resumed>) = 3 [pid 5993] <... bpf resumed>) = 3 [pid 5992] <... openat resumed>) = 3 [pid 5992] write(3, "1000", 4 [pid 5994] write(3, "1000", 4 [pid 5993] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5994] <... write resumed>) = 4 [pid 5993] <... bpf resumed>) = 4 [pid 5992] <... write resumed>) = 4 [pid 5991] +++ exited with 0 +++ [pid 5994] close(3) = 0 [pid 5990] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5991, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5992] close(3 [pid 5994] write(1, "executing program\n", 18executing program [pid 5993] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5990, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5992] <... close resumed>) = 0 [pid 5994] <... write resumed>) = 18 [pid 5994] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 5992] write(1, "executing program\n", 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5994] <... bpf resumed>) = 3 [pid 5992] <... write resumed>) = 18 [pid 5994] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5992] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5994] <... bpf resumed>) = 4 [pid 5992] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5995 attached [pid 5992] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5994] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 5995 ./strace-static-x86_64: Process 5996 attached [pid 5995] set_robust_list(0x55556540f660, 24 [pid 5994] <... bpf resumed>) = 5 [pid 5993] <... bpf resumed>) = 5 [pid 5992] <... bpf resumed>) = 4 [pid 5996] set_robust_list(0x55556540f660, 24) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 5996 [pid 5995] <... set_robust_list resumed>) = 0 [pid 5996] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5995] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5994] exit_group(0 [pid 5996] <... prctl resumed>) = 0 [pid 5994] <... exit_group resumed>) = ? [pid 5995] <... prctl resumed>) = 0 [pid 5992] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5995] setpgid(0, 0 [pid 5992] <... bpf resumed>) = 5 [pid 5996] setpgid(0, 0 [pid 5995] <... setpgid resumed>) = 0 [pid 5994] +++ exited with 0 +++ [pid 5993] exit_group(0 [pid 5992] exit_group(0 [pid 5996] <... setpgid resumed>) = 0 [pid 5992] <... exit_group resumed>) = ? [pid 5996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5992] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5994, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5996] <... openat resumed>) = 3 [pid 5993] <... exit_group resumed>) = ? [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5996] write(3, "1000", 4 [pid 5995] <... openat resumed>) = 3 [pid 5993] +++ exited with 0 +++ [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5996] <... write resumed>) = 4 [pid 5996] close(3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5993, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5996] <... close resumed>) = 0 [pid 5995] write(3, "1000", 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5996] write(1, "executing program\n", 18 [pid 5995] <... write resumed>) = 4 executing program [pid 5996] <... write resumed>) = 18 [pid 5995] close(3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5996] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5995] <... close resumed>) = 0 [pid 5996] <... bpf resumed>) = 3 executing program [pid 5995] write(1, "executing program\n", 18 [pid 5996] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5995] <... write resumed>) = 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5996] <... bpf resumed>) = 4 [pid 5995] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5997 attached [pid 5996] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5995] <... bpf resumed>) = 3 [pid 5995] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5997] set_robust_list(0x55556540f660, 24 [pid 5996] <... bpf resumed>) = 5 [pid 5995] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 5997 ./strace-static-x86_64: Process 5998 attached ./strace-static-x86_64: Process 5999 attached [pid 5998] set_robust_list(0x55556540f660, 24 [pid 5997] <... set_robust_list resumed>) = 0 [pid 5999] set_robust_list(0x55556540f660, 24 [pid 5998] <... set_robust_list resumed>) = 0 [pid 5996] exit_group(0 [pid 5995] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 5998 [pid 5999] <... set_robust_list resumed>) = 0 [pid 5996] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 5999 [pid 5999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5998] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5996] +++ exited with 0 +++ [pid 5999] <... prctl resumed>) = 0 [pid 5998] <... prctl resumed>) = 0 [pid 5997] <... prctl resumed>) = 0 [pid 5999] setpgid(0, 0 [pid 5998] setpgid(0, 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5996, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5999] <... setpgid resumed>) = 0 [pid 5998] <... setpgid resumed>) = 0 [pid 5997] setpgid(0, 0 [pid 5998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5997] <... setpgid resumed>) = 0 [pid 5999] <... openat resumed>) = 3 [pid 5998] <... openat resumed>) = 3 [pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5999] write(3, "1000", 4executing program [pid 5998] write(3, "1000", 4./strace-static-x86_64: Process 6000 attached [pid 5999] <... write resumed>) = 4 [pid 5997] <... openat resumed>) = 3 [pid 5998] <... write resumed>) = 4 [pid 6000] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6000 [pid 5998] close(3 [pid 6000] <... set_robust_list resumed>) = 0 [pid 5997] write(3, "1000", 4 [pid 5998] <... close resumed>) = 0 [pid 5998] write(1, "executing program\n", 18 [pid 6000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5999] close(3 [pid 5998] <... write resumed>) = 18 [pid 5997] <... write resumed>) = 4 [pid 5995] <... bpf resumed>) = 5 [pid 5999] <... close resumed>) = 0 executing program [pid 5999] write(1, "executing program\n", 18 [pid 5995] exit_group(0 [pid 5999] <... write resumed>) = 18 [pid 6000] <... prctl resumed>) = 0 [pid 5995] <... exit_group resumed>) = ? [pid 6000] setpgid(0, 0 [pid 5999] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5998] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5997] close(3 [pid 5995] +++ exited with 0 +++ [pid 6000] <... setpgid resumed>) = 0 [pid 5999] <... bpf resumed>) = 3 [pid 5997] <... close resumed>) = 0 [pid 5999] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5998] <... bpf resumed>) = 3 [pid 6000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5999] <... bpf resumed>) = 4 [pid 5997] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5997] <... write resumed>) = 18 [pid 5998] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5999] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5997] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6000] <... openat resumed>) = 3 [pid 6000] write(3, "1000", 4 [pid 5997] <... bpf resumed>) = 3 [pid 6000] <... write resumed>) = 4 [pid 6000] close(3executing program [pid 5998] <... bpf resumed>) = 4 [pid 5997] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6000] <... close resumed>) = 0 [pid 5998] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6000] write(1, "executing program\n", 18 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6000] <... write resumed>) = 18 [pid 6000] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5997] <... bpf resumed>) = 4 [pid 6000] <... bpf resumed>) = 3 [pid 6000] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5997] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6000] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6001 attached [pid 6000] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6001] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6001 [pid 6001] <... set_robust_list resumed>) = 0 [pid 6001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6000] <... bpf resumed>) = 5 [pid 5999] <... bpf resumed>) = 5 [pid 5998] <... bpf resumed>) = 5 [pid 5997] <... bpf resumed>) = 5 [pid 6001] <... prctl resumed>) = 0 [pid 6000] exit_group(0 [pid 5999] exit_group(0 [pid 5997] exit_group(0 [pid 6001] setpgid(0, 0 [pid 5998] exit_group(0 [pid 5999] <... exit_group resumed>) = ? [pid 5997] <... exit_group resumed>) = ? [pid 6001] <... setpgid resumed>) = 0 [pid 6000] <... exit_group resumed>) = ? [pid 5999] +++ exited with 0 +++ [pid 5998] <... exit_group resumed>) = ? [pid 5997] +++ exited with 0 +++ [pid 6001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5997, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5999, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6001] <... openat resumed>) = 3 [pid 6001] write(3, "1000", 4) = 4 [pid 6001] close(3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6001] <... close resumed>) = 0 executing program [pid 6001] write(1, "executing program\n", 18 [pid 6000] +++ exited with 0 +++ [pid 5998] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6000, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... restart_syscall resumed>) = 0 [pid 6001] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5998, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6001] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6005 attached ./strace-static-x86_64: Process 6004 attached ./strace-static-x86_64: Process 6003 attached ./strace-static-x86_64: Process 6002 attached [pid 6005] set_robust_list(0x55556540f660, 24 [pid 6004] set_robust_list(0x55556540f660, 24 [pid 6003] set_robust_list(0x55556540f660, 24 [pid 6002] set_robust_list(0x55556540f660, 24 [pid 6001] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6003 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6005 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6004 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6002 [pid 6005] <... set_robust_list resumed>) = 0 [pid 6004] <... set_robust_list resumed>) = 0 [pid 6003] <... set_robust_list resumed>) = 0 [pid 6002] <... set_robust_list resumed>) = 0 [pid 6001] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6003] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6004] <... prctl resumed>) = 0 [pid 6005] <... prctl resumed>) = 0 [pid 6004] setpgid(0, 0 [pid 6003] <... prctl resumed>) = 0 [pid 6002] <... prctl resumed>) = 0 [pid 6001] <... bpf resumed>) = 4 [pid 6004] <... setpgid resumed>) = 0 [pid 6005] setpgid(0, 0 [pid 6003] setpgid(0, 0 [pid 6005] <... setpgid resumed>) = 0 [pid 6003] <... setpgid resumed>) = 0 [pid 6002] setpgid(0, 0 [pid 6001] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6002] <... setpgid resumed>) = 0 [pid 6005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6004] <... openat resumed>) = 3 [pid 6001] <... bpf resumed>) = 5 [pid 6004] write(3, "1000", 4 [pid 6002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6001] exit_group(0 [pid 6005] <... openat resumed>) = 3 [pid 6005] write(3, "1000", 4 [pid 6004] <... write resumed>) = 4 [pid 6003] <... openat resumed>) = 3 [pid 6001] <... exit_group resumed>) = ? [pid 6005] <... write resumed>) = 4 [pid 6004] close(3 [pid 6003] write(3, "1000", 4 [pid 6002] <... openat resumed>) = 3 executing program [pid 6004] <... close resumed>) = 0 [pid 6004] write(1, "executing program\n", 18) = 18 executing program executing program executing program [pid 6004] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6005] close(3 [pid 6003] <... write resumed>) = 4 [pid 6002] write(3, "1000", 4 [pid 6005] <... close resumed>) = 0 [pid 6003] close(3 [pid 6002] <... write resumed>) = 4 [pid 6005] write(1, "executing program\n", 18 [pid 6003] <... close resumed>) = 0 [pid 6002] close(3 [pid 6005] <... write resumed>) = 18 [pid 6003] write(1, "executing program\n", 18 [pid 6002] <... close resumed>) = 0 [pid 6003] <... write resumed>) = 18 [pid 6002] write(1, "executing program\n", 18 [pid 6005] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6004] <... bpf resumed>) = 3 [pid 6003] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6002] <... write resumed>) = 18 [pid 6001] +++ exited with 0 +++ [pid 6005] <... bpf resumed>) = 3 [pid 6004] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6005] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6004] <... bpf resumed>) = 4 [pid 6003] <... bpf resumed>) = 3 [pid 6002] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6001, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6004] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6003] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6002] <... bpf resumed>) = 3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6005] <... bpf resumed>) = 4 [pid 6002] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6005] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6003] <... bpf resumed>) = 4 [pid 6004] <... bpf resumed>) = 5 [pid 6002] <... bpf resumed>) = 4 [pid 6005] <... bpf resumed>) = 5 [pid 6004] exit_group(0 [pid 6003] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6002] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6005] exit_group(0./strace-static-x86_64: Process 6006 attached ) = ? [pid 6004] <... exit_group resumed>) = ? [pid 6003] <... bpf resumed>) = 5 [pid 6002] <... bpf resumed>) = 5 [pid 6006] set_robust_list(0x55556540f660, 24) = 0 [pid 6003] exit_group(0 [pid 6002] exit_group(0 [pid 6003] <... exit_group resumed>) = ? [pid 6006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6005] +++ exited with 0 +++ [pid 6003] +++ exited with 0 +++ [pid 6002] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6006 [pid 6006] setpgid(0, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6003, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6006] <... setpgid resumed>) = 0 [pid 6006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6005, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6006] <... openat resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6006] write(3, "1000", 4 [pid 6004] +++ exited with 0 +++ [pid 6002] +++ exited with 0 +++ ./strace-static-x86_64: Process 6007 attached [pid 6006] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6004, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6007 [pid 5844] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6008 attached [pid 6007] set_robust_list(0x55556540f660, 24 [pid 6006] close(3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6002, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6007] <... set_robust_list resumed>) = 0 [pid 6006] <... close resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6008 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6008] set_robust_list(0x55556540f660, 24) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6006] write(1, "executing program\n", 18./strace-static-x86_64: Process 6009 attached [pid 6009] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6010 attached ) = 0 [pid 6008] <... prctl resumed>) = 0 [pid 6007] <... prctl resumed>) = 0 [pid 6006] <... write resumed>) = 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6009 [pid 6008] setpgid(0, 0 [pid 6007] setpgid(0, 0 [pid 6010] set_robust_list(0x55556540f660, 24 [pid 6009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6008] <... setpgid resumed>) = 0 [pid 6007] <... setpgid resumed>) = 0 [pid 6006] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6010] <... set_robust_list resumed>) = 0 [pid 6009] <... prctl resumed>) = 0 [pid 6008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6010] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6009] setpgid(0, 0 [pid 6007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6006] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6010 [pid 6010] <... prctl resumed>) = 0 [pid 6009] <... setpgid resumed>) = 0 [pid 6010] setpgid(0, 0 [pid 6009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6010] <... setpgid resumed>) = 0 [pid 6008] <... openat resumed>) = 3 [pid 6007] <... openat resumed>) = 3 [pid 6006] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6009] write(3, "1000", 4 [pid 6008] write(3, "1000", 4 [pid 6007] write(3, "1000", 4 [pid 6006] <... bpf resumed>) = 4 [pid 6010] <... openat resumed>) = 3 [pid 6009] <... write resumed>) = 4 [pid 6008] <... write resumed>) = 4 [pid 6007] <... write resumed>) = 4 [pid 6010] write(3, "1000", 4 [pid 6009] close(3 [pid 6008] close(3 [pid 6007] close(3 [pid 6006] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6010] <... write resumed>) = 4 [pid 6009] <... close resumed>) = 0 [pid 6008] <... close resumed>) = 0 [pid 6007] <... close resumed>) = 0 [pid 6006] <... bpf resumed>) = 5 [pid 6010] close(3 [pid 6009] write(1, "executing program\n", 18 [pid 6008] write(1, "executing program\n", 18 [pid 6007] write(1, "executing program\n", 18executing program executing program executing program executing program [pid 6010] <... close resumed>) = 0 [pid 6009] <... write resumed>) = 18 [pid 6010] write(1, "executing program\n", 18 [pid 6008] <... write resumed>) = 18 [pid 6007] <... write resumed>) = 18 [pid 6010] <... write resumed>) = 18 [pid 6009] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6008] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6007] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6010] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6009] <... bpf resumed>) = 3 [pid 6008] <... bpf resumed>) = 3 [pid 6007] <... bpf resumed>) = 3 [pid 6006] exit_group(0 [pid 6010] <... bpf resumed>) = 3 [pid 6008] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6007] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6006] <... exit_group resumed>) = ? [pid 6010] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6009] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6008] <... bpf resumed>) = 4 [pid 6007] <... bpf resumed>) = 4 [pid 6006] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6006, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6010] <... bpf resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6007] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6008] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6009] <... bpf resumed>) = 4 [pid 6010] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6009] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6011 attached [pid 6007] <... bpf resumed>) = 5 [pid 6011] set_robust_list(0x55556540f660, 24 [pid 6008] <... bpf resumed>) = 5 [pid 6011] <... set_robust_list resumed>) = 0 [pid 6010] <... bpf resumed>) = 5 [pid 6009] <... bpf resumed>) = 5 [pid 6010] exit_group(0 [pid 6009] exit_group(0 [pid 6008] exit_group(0 [pid 6007] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6011 [pid 6011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6008] <... exit_group resumed>) = ? [pid 6007] <... exit_group resumed>) = ? [pid 6011] <... prctl resumed>) = 0 [pid 6010] <... exit_group resumed>) = ? [pid 6009] <... exit_group resumed>) = ? [pid 6008] +++ exited with 0 +++ [pid 6007] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6008, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6012 attached [pid 6011] setpgid(0, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6012] set_robust_list(0x55556540f660, 24 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6011] <... setpgid resumed>) = 0 [pid 6012] <... set_robust_list resumed>) = 0 [pid 6012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6012 [pid 6011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] <... prctl resumed>) = 0 [pid 6011] <... openat resumed>) = 3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6012] setpgid(0, 0) = 0 [pid 6011] write(3, "1000", 4 [pid 6012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6011] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6012] <... openat resumed>) = 3 [pid 6011] close(3) = 0 executing program ./strace-static-x86_64: Process 6013 attached [pid 6011] write(1, "executing program\n", 18 [pid 6013] set_robust_list(0x55556540f660, 24 [pid 6012] write(3, "1000", 4 [pid 6011] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6013 [pid 6013] <... set_robust_list resumed>) = 0 [pid 6012] <... write resumed>) = 4 [pid 6013] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6012] close(3 [pid 6011] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6013] <... prctl resumed>) = 0 [pid 6012] <... close resumed>) = 0 [pid 6011] <... bpf resumed>) = 3 [pid 6013] setpgid(0, 0executing program [pid 6012] write(1, "executing program\n", 18 [pid 6011] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6009] +++ exited with 0 +++ [pid 6013] <... setpgid resumed>) = 0 [pid 6012] <... write resumed>) = 18 [pid 6013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6011] <... bpf resumed>) = 4 [pid 6010] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6011] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6010, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6013] <... openat resumed>) = 3 [pid 6012] <... bpf resumed>) = 3 [pid 6013] write(3, "1000", 4) = 4 [pid 6013] close(3 [pid 6012] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6013] <... close resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6013] write(1, "executing program\n", 18executing program ) = 18 [pid 6012] <... bpf resumed>) = 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6012] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6013] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6011] <... bpf resumed>) = 5 [pid 6012] <... bpf resumed>) = 5 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6013] <... bpf resumed>) = 3 [pid 6011] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6011] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6015 attached ./strace-static-x86_64: Process 6014 attached [pid 6013] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6012] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6014 [pid 6015] set_robust_list(0x55556540f660, 24 [pid 6014] set_robust_list(0x55556540f660, 24 [pid 6013] <... bpf resumed>) = 4 [pid 6012] <... exit_group resumed>) = ? [pid 6014] <... set_robust_list resumed>) = 0 [pid 6013] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6015 [pid 6015] <... set_robust_list resumed>) = 0 [pid 6014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6013] <... bpf resumed>) = 5 [pid 6011] +++ exited with 0 +++ [pid 6015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6014] <... prctl resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6011, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6013] exit_group(0 [pid 6015] <... prctl resumed>) = 0 [pid 6014] setpgid(0, 0 [pid 6013] <... exit_group resumed>) = ? [pid 6015] setpgid(0, 0 [pid 6014] <... setpgid resumed>) = 0 [pid 6015] <... setpgid resumed>) = 0 [pid 6014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6014] <... openat resumed>) = 3 [pid 6015] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6016 attached [pid 6015] write(3, "1000", 4 [pid 6014] write(3, "1000", 4 [pid 6016] set_robust_list(0x55556540f660, 24) = 0 [pid 6015] <... write resumed>) = 4 [pid 6014] <... write resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6016 [pid 6014] close(3) = 0 [pid 6016] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6015] close(3executing program [pid 6014] write(1, "executing program\n", 18 [pid 6015] <... close resumed>) = 0 [pid 6014] <... write resumed>) = 18 [pid 6016] <... prctl resumed>) = 0 [pid 6015] write(1, "executing program\n", 18 [pid 6014] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6013] +++ exited with 0 +++ [pid 6016] setpgid(0, 0 [pid 6012] +++ exited with 0 +++ [pid 6015] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6012, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6015] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6016] <... setpgid resumed>) = 0 [pid 6015] <... bpf resumed>) = 3 [pid 6014] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6015] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6014] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6017 attached [pid 6016] <... openat resumed>) = 3 [pid 6014] <... bpf resumed>) = 4 [pid 6017] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6017 [pid 6015] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6018 attached [pid 6017] <... set_robust_list resumed>) = 0 [pid 6016] write(3, "1000", 4 [pid 6015] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6014] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6017] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6016] <... write resumed>) = 4 [pid 6018] set_robust_list(0x55556540f660, 24 [pid 6017] <... prctl resumed>) = 0 [pid 6016] close(3 [pid 6018] <... set_robust_list resumed>) = 0 [pid 6017] setpgid(0, 0 [pid 6016] <... close resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6018 [pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6017] <... setpgid resumed>) = 0 executing program [pid 6016] write(1, "executing program\n", 18) = 18 [pid 6018] <... prctl resumed>) = 0 [pid 6018] setpgid(0, 0 [pid 6016] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6016] <... bpf resumed>) = 3 [pid 6018] <... setpgid resumed>) = 0 [pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6017] <... openat resumed>) = 3 [pid 6016] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6017] write(3, "1000", 4 [pid 6018] <... openat resumed>) = 3 [pid 6018] write(3, "1000", 4) = 4 executing program [pid 6018] close(3 [pid 6017] <... write resumed>) = 4 [pid 6016] <... bpf resumed>) = 4 [pid 6018] <... close resumed>) = 0 [pid 6018] write(1, "executing program\n", 18) = 18 [pid 6018] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6017] close(3 [pid 6016] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6017] <... close resumed>) = 0 [pid 6018] <... bpf resumed>) = 3 [pid 6017] write(1, "executing program\n", 18executing program ) = 18 [pid 6018] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6017] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6018] <... bpf resumed>) = 4 [pid 6015] <... bpf resumed>) = 5 [pid 6018] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6017] <... bpf resumed>) = 3 [pid 6016] <... bpf resumed>) = 5 [pid 6015] exit_group(0 [pid 6014] <... bpf resumed>) = 5 [pid 6018] exit_group(0 [pid 6017] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6016] exit_group(0 [pid 6015] <... exit_group resumed>) = ? [pid 6014] exit_group(0 [pid 6018] <... exit_group resumed>) = ? [pid 6016] <... exit_group resumed>) = ? [pid 6018] +++ exited with 0 +++ [pid 6015] +++ exited with 0 +++ [pid 6014] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6015, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6018, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6017] <... bpf resumed>) = 4 [pid 6017] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6014] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6019 attached [pid 6016] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6014, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6020 [pid 5844] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6020 attached [pid 6019] set_robust_list(0x55556540f660, 24 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6019 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6016, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6020] set_robust_list(0x55556540f660, 24 [pid 6019] <... set_robust_list resumed>) = 0 [pid 6020] <... set_robust_list resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6020] <... prctl resumed>) = 0 [pid 6019] <... prctl resumed>) = 0 [pid 6020] setpgid(0, 0 [pid 6019] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6021 attached [pid 6020] <... setpgid resumed>) = 0 [pid 6021] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6022 attached [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6019] <... setpgid resumed>) = 0 [pid 6017] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6021 [pid 6022] set_robust_list(0x55556540f660, 24 [pid 6021] <... set_robust_list resumed>) = 0 [pid 6019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6022] <... set_robust_list resumed>) = 0 [pid 6021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6020] <... openat resumed>) = 3 [pid 6017] exit_group(0 [pid 6022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6021] <... prctl resumed>) = 0 [pid 6020] write(3, "1000", 4 [pid 6019] <... openat resumed>) = 3 [pid 6017] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6022 [pid 6022] <... prctl resumed>) = 0 [pid 6021] setpgid(0, 0 [pid 6020] <... write resumed>) = 4 [pid 6022] setpgid(0, 0 [pid 6021] <... setpgid resumed>) = 0 [pid 6022] <... setpgid resumed>) = 0 [pid 6022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6022] <... openat resumed>) = 3 [pid 6021] <... openat resumed>) = 3 [pid 6020] close(3 [pid 6019] write(3, "1000", 4 [pid 6017] +++ exited with 0 +++ [pid 6022] write(3, "1000", 4 [pid 6021] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6017, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6022] <... write resumed>) = 4 [pid 6021] <... write resumed>) = 4 [pid 6022] close(3 [pid 6021] close(3 [pid 6022] <... close resumed>) = 0 [pid 6021] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6023 attached [pid 6022] write(1, "executing program\n", 18executing program [pid 6021] write(1, "executing program\n", 18 [pid 6023] set_robust_list(0x55556540f660, 24 [pid 6022] <... write resumed>) = 18 [pid 6021] <... write resumed>) = 18 [pid 6020] <... close resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6023 [pid 6022] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6023] <... set_robust_list resumed>) = 0 [pid 6021] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6020] write(1, "executing program\n", 18 [pid 6019] <... write resumed>) = 4 [pid 6023] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6022] <... bpf resumed>) = 3 [pid 6021] <... bpf resumed>) = 3 [pid 6020] <... write resumed>) = 18 [pid 6019] close(3 [pid 6023] <... prctl resumed>) = 0 [pid 6022] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6021] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6020] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6019] <... close resumed>) = 0 [pid 6023] setpgid(0, 0 [pid 6022] <... bpf resumed>) = 4 [pid 6021] <... bpf resumed>) = 4 executing program [pid 6019] write(1, "executing program\n", 18) = 18 [pid 6023] <... setpgid resumed>) = 0 [pid 6019] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6020] <... bpf resumed>) = 3 [pid 6023] <... openat resumed>) = 3 [pid 6022] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6021] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6020] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6019] <... bpf resumed>) = 3 [pid 6022] <... bpf resumed>) = 5 [pid 6023] write(3, "1000", 4) = 4 [pid 6023] close(3) = 0 [pid 6023] write(1, "executing program\n", 18 [pid 6022] exit_group(0 [pid 6020] <... bpf resumed>) = 4 executing program [pid 6023] <... write resumed>) = 18 [pid 6023] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6020] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6019] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6023] <... bpf resumed>) = 3 [pid 6022] <... exit_group resumed>) = ? [pid 6021] <... bpf resumed>) = 5 [pid 6020] <... bpf resumed>) = 5 [pid 6023] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6022] +++ exited with 0 +++ [pid 6019] <... bpf resumed>) = 4 [pid 6023] <... bpf resumed>) = 4 [pid 6021] exit_group(0 [pid 6020] exit_group(0 [pid 6023] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6021] <... exit_group resumed>) = ? [pid 6023] <... bpf resumed>) = 5 [pid 6020] <... exit_group resumed>) = ? [pid 6019] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6023] exit_group(0 [pid 6020] +++ exited with 0 +++ [pid 6023] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6024 attached [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6024] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6025 attached ) = 0 [pid 6021] +++ exited with 0 +++ [pid 6019] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6024 [pid 6025] set_robust_list(0x55556540f660, 24 [pid 6024] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6019] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6021, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6025] <... set_robust_list resumed>) = 0 [pid 6025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6024] <... prctl resumed>) = 0 [pid 6019] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6025 [pid 6025] <... prctl resumed>) = 0 [pid 6024] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6025] setpgid(0, 0) = 0 [pid 6024] <... setpgid resumed>) = 0 [pid 6025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6025] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6026 attached [pid 6024] <... openat resumed>) = 3 [pid 6026] set_robust_list(0x55556540f660, 24 [pid 6025] write(3, "1000", 4 [pid 6024] write(3, "1000", 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6026 [pid 6026] <... set_robust_list resumed>) = 0 [pid 6025] <... write resumed>) = 4 [pid 6024] <... write resumed>) = 4 [pid 6026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6025] close(3 [pid 6024] close(3 [pid 6023] +++ exited with 0 +++ [pid 6026] setpgid(0, 0 [pid 6025] <... close resumed>) = 0 [pid 6024] <... close resumed>) = 0 [pid 6019] +++ exited with 0 +++ executing program [pid 6026] <... setpgid resumed>) = 0 [pid 6025] write(1, "executing program\n", 18 [pid 6024] write(1, "executing program\n", 18executing program [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6023, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6019, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6025] <... write resumed>) = 18 [pid 6024] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6025] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6024] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6026] <... openat resumed>) = 3 [pid 6025] <... bpf resumed>) = 3 [pid 6024] <... bpf resumed>) = 3 [pid 6026] write(3, "1000", 4 [pid 6025] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6024] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6026] <... write resumed>) = 4 [pid 6025] <... bpf resumed>) = 4 [pid 6024] <... bpf resumed>) = 4 [pid 6026] close(3) = 0 [pid 6025] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6024] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6026] write(1, "executing program\n", 18 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6025] <... bpf resumed>) = 5 [pid 6024] <... bpf resumed>) = 5 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 6027 attached [pid 6026] <... write resumed>) = 18 [pid 6025] exit_group(0 [pid 6024] exit_group(0 [pid 6027] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6027 [pid 6027] <... set_robust_list resumed>) = 0 [pid 6026] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6027] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6025] <... exit_group resumed>) = ? [pid 6024] <... exit_group resumed>) = ? [pid 6026] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6027] <... prctl resumed>) = 0 [pid 6027] setpgid(0, 0) = 0 [pid 6027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 6028 attached [pid 6026] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6025] +++ exited with 0 +++ [pid 6024] +++ exited with 0 +++ [pid 6028] set_robust_list(0x55556540f660, 24 [pid 6027] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6025, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6024, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6028] <... set_robust_list resumed>) = 0 [pid 6027] <... write resumed>) = 4 [pid 6026] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6028 [pid 6028] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6027] close(3 [pid 6026] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6028] <... prctl resumed>) = 0 [pid 6027] <... close resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6030 attached ./strace-static-x86_64: Process 6029 attached [pid 6028] setpgid(0, 0 [pid 6027] write(1, "executing program\n", 18executing program [pid 6026] <... bpf resumed>) = 5 [pid 6030] set_robust_list(0x55556540f660, 24 [pid 6028] <... setpgid resumed>) = 0 [pid 6027] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6029 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6030 [pid 6030] <... set_robust_list resumed>) = 0 [pid 6029] set_robust_list(0x55556540f660, 24 [pid 6028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6027] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6026] exit_group(0 [pid 6030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6029] <... set_robust_list resumed>) = 0 [pid 6028] <... openat resumed>) = 3 [pid 6027] <... bpf resumed>) = 3 [pid 6028] write(3, "1000", 4 [pid 6027] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6030] <... prctl resumed>) = 0 [pid 6029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6028] <... write resumed>) = 4 [pid 6027] <... bpf resumed>) = 4 executing program [pid 6026] <... exit_group resumed>) = ? [pid 6030] setpgid(0, 0 [pid 6029] <... prctl resumed>) = 0 [pid 6028] close(3 [pid 6027] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6028] <... close resumed>) = 0 [pid 6027] <... bpf resumed>) = 5 [pid 6028] write(1, "executing program\n", 18) = 18 [pid 6030] <... setpgid resumed>) = 0 [pid 6029] setpgid(0, 0) = 0 [pid 6028] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6027] exit_group(0 [pid 6029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6028] <... bpf resumed>) = 3 [pid 6027] <... exit_group resumed>) = ? [pid 6030] <... openat resumed>) = 3 [pid 6029] write(3, "1000", 4 [pid 6028] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6030] write(3, "1000", 4 [pid 6029] <... write resumed>) = 4 [pid 6030] <... write resumed>) = 4 [pid 6029] close(3 [pid 6030] close(3 [pid 6029] <... close resumed>) = 0 [pid 6028] <... bpf resumed>) = 4 executing program [pid 6029] write(1, "executing program\n", 18 [pid 6030] <... close resumed>) = 0 [pid 6029] <... write resumed>) = 18 executing program [pid 6028] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6030] write(1, "executing program\n", 18) = 18 [pid 6029] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6030] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6029] <... bpf resumed>) = 3 [pid 6030] <... bpf resumed>) = 3 [pid 6029] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6030] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6029] <... bpf resumed>) = 4 [pid 6030] <... bpf resumed>) = 4 [pid 6030] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6029] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6026] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6026, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6029] <... bpf resumed>) = 5 [pid 6029] exit_group(0) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6031 attached , child_tidptr=0x55556540f650) = 6031 [pid 6031] set_robust_list(0x55556540f660, 24) = 0 [pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6030] <... bpf resumed>) = 5 [pid 6029] +++ exited with 0 +++ [pid 6028] <... bpf resumed>) = 5 [pid 6027] +++ exited with 0 +++ [pid 6031] <... prctl resumed>) = 0 [pid 6030] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6029, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6031] setpgid(0, 0 [pid 6030] <... exit_group resumed>) = ? [pid 6028] exit_group(0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6027, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6031] <... setpgid resumed>) = 0 [pid 6028] <... exit_group resumed>) = ? [pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6032 attached [pid 6031] <... openat resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6031] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 6033 attached [pid 6032] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6032 [pid 6033] set_robust_list(0x55556540f660, 24 [pid 6032] <... set_robust_list resumed>) = 0 [pid 6031] close(3 [pid 6030] +++ exited with 0 +++ [pid 6028] +++ exited with 0 +++ [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6033 executing program [pid 6032] <... prctl resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6033] <... set_robust_list resumed>) = 0 [pid 6032] setpgid(0, 0 [pid 6031] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6030, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6031] write(1, "executing program\n", 18 [pid 6033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6031] <... write resumed>) = 18 [pid 6033] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6034 attached [pid 6032] <... setpgid resumed>) = 0 [pid 6031] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6034] set_robust_list(0x55556540f660, 24 [pid 6033] setpgid(0, 0 [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6034] <... set_robust_list resumed>) = 0 [pid 6033] <... setpgid resumed>) = 0 [pid 6031] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6035 attached [pid 6034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6032] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6034 [pid 6031] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6035] set_robust_list(0x55556540f660, 24 [pid 6034] <... prctl resumed>) = 0 [pid 6032] write(3, "1000", 4 [pid 6034] setpgid(0, 0 [pid 6033] <... openat resumed>) = 3 [pid 6035] <... set_robust_list resumed>) = 0 [pid 6032] <... write resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6035 [pid 6035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6034] <... setpgid resumed>) = 0 [pid 6033] write(3, "1000", 4 [pid 6032] close(3 [pid 6031] <... bpf resumed>) = 4 [pid 6035] <... prctl resumed>) = 0 [pid 6032] <... close resumed>) = 0 [pid 6035] setpgid(0, 0executing program [pid 6034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6032] write(1, "executing program\n", 18 [pid 6035] <... setpgid resumed>) = 0 [pid 6033] <... write resumed>) = 4 [pid 6032] <... write resumed>) = 18 [pid 6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6034] <... openat resumed>) = 3 [pid 6033] close(3 [pid 6032] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6031] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6035] <... openat resumed>) = 3 [pid 6034] write(3, "1000", 4 [pid 6033] <... close resumed>) = 0 executing program [pid 6032] <... bpf resumed>) = 3 [pid 6035] write(3, "1000", 4 [pid 6033] write(1, "executing program\n", 18 [pid 6035] <... write resumed>) = 4 [pid 6034] <... write resumed>) = 4 [pid 6033] <... write resumed>) = 18 [pid 6032] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6035] close(3 [pid 6034] close(3 [pid 6033] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6031] <... bpf resumed>) = 5 [pid 6035] <... close resumed>) = 0 [pid 6032] <... bpf resumed>) = 4 [pid 6035] write(1, "executing program\n", 18 [pid 6034] <... close resumed>) = 0 [pid 6033] <... bpf resumed>) = 3 [pid 6034] write(1, "executing program\n", 18executing program executing program [pid 6031] exit_group(0 [pid 6035] <... write resumed>) = 18 [pid 6034] <... write resumed>) = 18 [pid 6033] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6031] <... exit_group resumed>) = ? [pid 6034] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6035] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6032] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6035] <... bpf resumed>) = 3 [pid 6034] <... bpf resumed>) = 3 [pid 6033] <... bpf resumed>) = 4 [pid 6032] <... bpf resumed>) = 5 [pid 6035] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6032] exit_group(0 [pid 6035] <... bpf resumed>) = 4 [pid 6034] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6033] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6032] <... exit_group resumed>) = ? [pid 6035] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6034] <... bpf resumed>) = 4 [pid 6034] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6033] <... bpf resumed>) = 5 [pid 6031] +++ exited with 0 +++ [pid 6033] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6031, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6033] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6035] <... bpf resumed>) = 5 [pid 6034] <... bpf resumed>) = 5 [pid 6033] +++ exited with 0 +++ [pid 6032] +++ exited with 0 +++ ./strace-static-x86_64: Process 6036 attached [pid 6035] exit_group(0 [pid 6034] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6032, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6033, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6036] set_robust_list(0x55556540f660, 24 [pid 6034] <... exit_group resumed>) = ? [pid 6035] <... exit_group resumed>) = ? [pid 6036] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6036 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6038 attached ./strace-static-x86_64: Process 6037 attached [pid 6036] <... prctl resumed>) = 0 [pid 6036] setpgid(0, 0 [pid 6038] set_robust_list(0x55556540f660, 24 [pid 6037] set_robust_list(0x55556540f660, 24 [pid 6036] <... setpgid resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6037 [pid 6038] <... set_robust_list resumed>) = 0 [pid 6037] <... set_robust_list resumed>) = 0 [pid 6036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6036] <... openat resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6038 [pid 6038] <... prctl resumed>) = 0 [pid 6037] <... prctl resumed>) = 0 [pid 6035] +++ exited with 0 +++ [pid 6038] setpgid(0, 0 [pid 6037] setpgid(0, 0 [pid 6036] write(3, "1000", 4 [pid 6034] +++ exited with 0 +++ [pid 6038] <... setpgid resumed>) = 0 [pid 6037] <... setpgid resumed>) = 0 [pid 6036] <... write resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6035, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6036] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6038] <... openat resumed>) = 3 [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program executing program [pid 6038] write(3, "1000", 4 [pid 6036] <... close resumed>) = 0 [pid 6038] <... write resumed>) = 4 [pid 6037] <... openat resumed>) = 3 [pid 6038] close(3 [pid 6036] write(1, "executing program\n", 18 [pid 6037] write(3, "1000", 4 [pid 6038] <... close resumed>) = 0 [pid 6036] <... write resumed>) = 18 [pid 6038] write(1, "executing program\n", 18 [pid 6037] <... write resumed>) = 4 [pid 6036] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6038] <... write resumed>) = 18 [pid 6037] close(3 [pid 6038] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6037] <... close resumed>) = 0 [pid 6036] <... bpf resumed>) = 3 executing program [pid 6038] <... bpf resumed>) = 3 [pid 6037] write(1, "executing program\n", 18 [pid 6036] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6037] <... write resumed>) = 18 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6038] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6037] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6038] <... bpf resumed>) = 4 [pid 6036] <... bpf resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6038] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6037] <... bpf resumed>) = 3 [pid 6036] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6037] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6037] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6039 attached [pid 6039] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6040 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6039 [pid 6039] <... set_robust_list resumed>) = 0 [pid 6040] set_robust_list(0x55556540f660, 24 [pid 6037] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6040] <... set_robust_list resumed>) = 0 [pid 6038] <... bpf resumed>) = 5 [pid 6040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6036] <... bpf resumed>) = 5 [pid 6040] <... prctl resumed>) = 0 [pid 6039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6038] exit_group(0 [pid 6037] <... bpf resumed>) = 5 [pid 6036] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6040 [pid 6040] setpgid(0, 0 [pid 6039] <... prctl resumed>) = 0 [pid 6038] <... exit_group resumed>) = ? [pid 6040] <... setpgid resumed>) = 0 [pid 6039] setpgid(0, 0 [pid 6038] +++ exited with 0 +++ [pid 6037] exit_group(0 [pid 6036] <... exit_group resumed>) = ? [pid 6039] <... setpgid resumed>) = 0 [pid 6039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6039] write(3, "1000", 4 [pid 6040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6039] <... write resumed>) = 4 executing program [pid 6040] <... openat resumed>) = 3 [pid 6037] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6039] close(3) = 0 [pid 6039] write(1, "executing program\n", 18) = 18 [pid 6039] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6039] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6040] write(3, "1000", 4 [pid 6039] <... bpf resumed>) = 4 [pid 6037] +++ exited with 0 +++ [pid 6036] +++ exited with 0 +++ [pid 6040] <... write resumed>) = 4 [pid 6040] close(3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6036, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6037, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6040] <... close resumed>) = 0 [pid 6039] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6040] write(1, "executing program\n", 18./strace-static-x86_64: Process 6041 attached ) = 18 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6041] set_robust_list(0x55556540f660, 24 [pid 6040] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6041] <... set_robust_list resumed>) = 0 [pid 6040] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6042 attached [pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6040] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6039] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6041 [pid 6042] set_robust_list(0x55556540f660, 24 [pid 6041] <... prctl resumed>) = 0 [pid 6040] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6043 attached [pid 6042] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6042 [pid 6042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6041] setpgid(0, 0 [pid 6043] set_robust_list(0x55556540f660, 24 [pid 6042] <... prctl resumed>) = 0 [pid 6043] <... set_robust_list resumed>) = 0 [pid 6041] <... setpgid resumed>) = 0 [pid 6043] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6042] setpgid(0, 0 [pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6043] <... prctl resumed>) = 0 [pid 6042] <... setpgid resumed>) = 0 [pid 6043] setpgid(0, 0 [pid 6040] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6043] <... setpgid resumed>) = 0 [pid 6042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6041] <... openat resumed>) = 3 [pid 6040] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6043 [pid 6041] write(3, "1000", 4) = 4 [pid 6043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6041] close(3 [pid 6040] exit_group(0 [pid 6042] <... openat resumed>) = 3 [pid 6041] <... close resumed>) = 0 executing program [pid 6041] write(1, "executing program\n", 18 [pid 6040] <... exit_group resumed>) = ? [pid 6039] exit_group(0 [pid 6043] <... openat resumed>) = 3 [pid 6042] write(3, "1000", 4 [pid 6041] <... write resumed>) = 18 [pid 6040] +++ exited with 0 +++ [pid 6043] write(3, "1000", 4 [pid 6042] <... write resumed>) = 4 [pid 6041] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6039] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6043] <... write resumed>) = 4 [pid 6042] close(3 [pid 6041] <... bpf resumed>) = 3 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6043] close(3 [pid 6042] <... close resumed>) = 0 [pid 6043] <... close resumed>) = 0 [pid 6042] write(1, "executing program\n", 18 [pid 6041] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program executing program [pid 5845] <... restart_syscall resumed>) = 0 [pid 6043] write(1, "executing program\n", 18 [pid 6042] <... write resumed>) = 18 [pid 6039] +++ exited with 0 +++ [pid 6043] <... write resumed>) = 18 [pid 6042] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6043] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6042] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6039, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6043] <... bpf resumed>) = 3 [pid 6042] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6041] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6044 attached [pid 6043] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6042] <... bpf resumed>) = 4 [pid 6044] set_robust_list(0x55556540f660, 24 [pid 6043] <... bpf resumed>) = 4 [pid 6041] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6044] <... set_robust_list resumed>) = 0 [pid 6044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6042] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6044 [pid 6044] <... prctl resumed>) = 0 [pid 6043] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6044] setpgid(0, 0) = 0 [pid 6044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... restart_syscall resumed>) = 0 [pid 6044] <... openat resumed>) = 3 [pid 6043] <... bpf resumed>) = 5 [pid 6042] <... bpf resumed>) = 5 [pid 6041] <... bpf resumed>) = 5 [pid 6044] write(3, "1000", 4 [pid 6042] exit_group(0) = ? [pid 6041] exit_group(0 [pid 6044] <... write resumed>) = 4 [pid 6043] exit_group(0 [pid 6042] +++ exited with 0 +++ [pid 6044] close(3 [pid 6043] <... exit_group resumed>) = ? [pid 6041] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6044] <... close resumed>) = 0 [pid 6043] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6043, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6045 attached [pid 6045] set_robust_list(0x55556540f660, 24executing program [pid 6044] write(1, "executing program\n", 18 [pid 6041] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6045 [pid 6044] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6042, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6041, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6044] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6045] <... set_robust_list resumed>) = 0 [pid 6045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6044] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6045] <... prctl resumed>) = 0 [pid 6045] setpgid(0, 0) = 0 [pid 6045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6046 attached ) = 3 [pid 6046] set_robust_list(0x55556540f660, 24 [pid 6045] write(3, "1000", 4 executing program [pid 6044] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6046 [pid 6045] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6046] <... set_robust_list resumed>) = 0 [pid 6045] close(3 [pid 6046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6045] <... close resumed>) = 0 [pid 6046] <... prctl resumed>) = 0 [pid 6045] write(1, "executing program\n", 18./strace-static-x86_64: Process 6047 attached [pid 6046] setpgid(0, 0 [pid 6045] <... write resumed>) = 18 [pid 6047] set_robust_list(0x55556540f660, 24 [pid 6046] <... setpgid resumed>) = 0 [pid 6045] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6044] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6048 attached [pid 6047] <... set_robust_list resumed>) = 0 [pid 6046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6045] <... bpf resumed>) = 3 [pid 6047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6044] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6047] <... prctl resumed>) = 0 [pid 6045] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6048] set_robust_list(0x55556540f660, 24 [pid 6047] setpgid(0, 0 [pid 6044] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6047 [pid 6048] <... set_robust_list resumed>) = 0 [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6047] <... setpgid resumed>) = 0 [pid 6046] <... openat resumed>) = 3 [pid 6045] <... bpf resumed>) = 4 [pid 6044] exit_group(0executing program [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6048 [pid 6048] <... prctl resumed>) = 0 [pid 6047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6046] write(3, "1000", 4 [pid 6048] setpgid(0, 0 [pid 6047] <... openat resumed>) = 3 [pid 6046] <... write resumed>) = 4 [pid 6044] <... exit_group resumed>) = ? [pid 6048] <... setpgid resumed>) = 0 [pid 6047] write(3, "1000", 4 [pid 6046] close(3 [pid 6045] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6047] <... write resumed>) = 4 [pid 6046] <... close resumed>) = 0 [pid 6045] <... bpf resumed>) = 5 [pid 6046] write(1, "executing program\n", 18) = 18 [pid 6047] close(3 [pid 6046] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6047] <... close resumed>) = 0 [pid 6045] exit_group(0 [pid 6047] write(1, "executing program\n", 18executing program [pid 6048] <... openat resumed>) = 3 [pid 6047] <... write resumed>) = 18 [pid 6046] <... bpf resumed>) = 3 [pid 6045] <... exit_group resumed>) = ? [pid 6048] write(3, "1000", 4 [pid 6047] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6046] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6048] <... write resumed>) = 4 [pid 6048] close(3) = 0 [pid 6047] <... bpf resumed>) = 3 [pid 6046] <... bpf resumed>) = 4 [pid 6048] write(1, "executing program\n", 18 executing program [pid 6047] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6046] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6048] <... write resumed>) = 18 [pid 6047] <... bpf resumed>) = 4 [pid 6047] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6048] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6048] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6048] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6044] +++ exited with 0 +++ [pid 6045] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6044, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6045, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6049 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6049] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6050 attached [pid 6046] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6049 [pid 6050] set_robust_list(0x55556540f660, 24 [pid 6049] <... set_robust_list resumed>) = 0 [pid 6048] <... bpf resumed>) = 5 [pid 6047] <... bpf resumed>) = 5 [pid 6046] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6050 [pid 6050] <... set_robust_list resumed>) = 0 [pid 6049] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6048] exit_group(0 [pid 6046] <... exit_group resumed>) = ? [pid 6048] <... exit_group resumed>) = ? [pid 6050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6049] <... prctl resumed>) = 0 [pid 6047] exit_group(0 [pid 6046] +++ exited with 0 +++ [pid 6050] <... prctl resumed>) = 0 [pid 6049] setpgid(0, 0 [pid 6047] <... exit_group resumed>) = ? [pid 6050] setpgid(0, 0 [pid 6049] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6046, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6050] <... setpgid resumed>) = 0 [pid 6049] <... openat resumed>) = 3 [pid 6050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6049] write(3, "1000", 4) = 4 [pid 6049] close(3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6050] <... openat resumed>) = 3 [pid 6049] <... close resumed>) = 0 [pid 6048] +++ exited with 0 +++ [pid 6047] +++ exited with 0 +++ ./strace-static-x86_64: Process 6051 attached [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6048, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6047, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6051] set_robust_list(0x55556540f660, 24) = 0 [pid 6049] write(1, "executing program\n", 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6052 attached ./strace-static-x86_64: Process 6053 attached [pid 6051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6050] write(3, "1000", 4 [pid 6049] <... write resumed>) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6051 [pid 6052] set_robust_list(0x55556540f660, 24 [pid 6050] <... write resumed>) = 4 [pid 6049] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6052] <... set_robust_list resumed>) = 0 [pid 6050] close(3 [pid 6053] set_robust_list(0x55556540f660, 24 [pid 6051] <... prctl resumed>) = 0 [pid 6050] <... close resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6052 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6053 [pid 6053] <... set_robust_list resumed>) = 0 executing program [pid 6052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6051] setpgid(0, 0 [pid 6050] write(1, "executing program\n", 18 [pid 6049] <... bpf resumed>) = 3 [pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6052] <... prctl resumed>) = 0 [pid 6051] <... setpgid resumed>) = 0 [pid 6050] <... write resumed>) = 18 [pid 6049] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6053] <... prctl resumed>) = 0 [pid 6052] setpgid(0, 0 [pid 6051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6050] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6051] <... openat resumed>) = 3 [pid 6049] <... bpf resumed>) = 4 [pid 6051] write(3, "1000", 4executing program [pid 6053] setpgid(0, 0 [pid 6052] <... setpgid resumed>) = 0 [pid 6051] <... write resumed>) = 4 [pid 6050] <... bpf resumed>) = 3 [pid 6049] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6053] <... setpgid resumed>) = 0 [pid 6050] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6051] close(3) = 0 [pid 6050] <... bpf resumed>) = 4 [pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6051] write(1, "executing program\n", 18 [pid 6049] <... bpf resumed>) = 5 [pid 6053] <... openat resumed>) = 3 [pid 6052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6051] <... write resumed>) = 18 [pid 6050] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6049] exit_group(0 [pid 6051] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6050] <... bpf resumed>) = 5 [pid 6051] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6053] write(3, "1000", 4 [pid 6052] <... openat resumed>) = 3 [pid 6050] exit_group(0 [pid 6049] <... exit_group resumed>) = ? [pid 6053] <... write resumed>) = 4 [pid 6052] write(3, "1000", 4 [pid 6050] <... exit_group resumed>) = ? [pid 6051] <... bpf resumed>) = 4 [pid 6051] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6053] close(3 [pid 6052] <... write resumed>) = 4 [pid 6052] close(3 [pid 6053] <... close resumed>) = 0 [pid 6052] <... close resumed>) = 0 [pid 6053] write(1, "executing program\n", 18 executing program executing program [pid 6052] write(1, "executing program\n", 18 [pid 6053] <... write resumed>) = 18 [pid 6052] <... write resumed>) = 18 [pid 6053] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6052] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6053] <... bpf resumed>) = 3 [pid 6052] <... bpf resumed>) = 3 [pid 6053] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6052] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6052] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6053] <... bpf resumed>) = 4 [pid 6053] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6051] <... bpf resumed>) = 5 [pid 6049] +++ exited with 0 +++ [pid 6051] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6049, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6051] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6054 attached , child_tidptr=0x55556540f650) = 6054 [pid 6054] set_robust_list(0x55556540f660, 24) = 0 [pid 6054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6053] <... bpf resumed>) = 5 [pid 6052] <... bpf resumed>) = 5 [pid 6051] +++ exited with 0 +++ [pid 6050] +++ exited with 0 +++ [pid 6054] setpgid(0, 0 [pid 6053] exit_group(0 [pid 6052] exit_group(0 [pid 6054] <... setpgid resumed>) = 0 [pid 6053] <... exit_group resumed>) = ? [pid 6052] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6051, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6050, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6054] <... openat resumed>) = 3 [pid 6054] write(3, "1000", 4) = 4 [pid 6054] close(3) = 0 executing program [pid 6054] write(1, "executing program\n", 18) = 18 [pid 6054] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6054] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6054] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6052] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6055 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6056 attached ./strace-static-x86_64: Process 6057 attached [pid 6055] set_robust_list(0x55556540f660, 24 [pid 6053] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6055 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6053, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6057] set_robust_list(0x55556540f660, 24 [pid 6055] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6057 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6056] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6056 [pid 6056] <... set_robust_list resumed>) = 0 [pid 6056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6057] <... set_robust_list resumed>) = 0 [pid 6056] <... prctl resumed>) = 0 [pid 6055] <... prctl resumed>) = 0 [pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6056] setpgid(0, 0 [pid 6057] <... prctl resumed>) = 0 [pid 6056] <... setpgid resumed>) = 0 [pid 6055] setpgid(0, 0 [pid 6057] setpgid(0, 0 [pid 6056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6055] <... setpgid resumed>) = 0 [pid 6057] <... setpgid resumed>) = 0 [pid 6056] <... openat resumed>) = 3 [pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6054] <... bpf resumed>) = 5 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6056] write(3, "1000", 4 [pid 6055] <... openat resumed>) = 3 [pid 6057] <... openat resumed>) = 3 [pid 6056] <... write resumed>) = 4 [pid 6056] close(3 [pid 6055] write(3, "1000", 4 [pid 6056] <... close resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6058 attached [pid 6057] write(3, "1000", 4executing program [pid 6056] write(1, "executing program\n", 18 [pid 6055] <... write resumed>) = 4 [pid 6055] close(3 [pid 6056] <... write resumed>) = 18 [pid 6058] set_robust_list(0x55556540f660, 24 [pid 6056] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6055] <... close resumed>) = 0 [pid 6057] <... write resumed>) = 4 [pid 6058] <... set_robust_list resumed>) = 0 executing program [pid 6058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6057] close(3 [pid 6056] <... bpf resumed>) = 3 [pid 6055] write(1, "executing program\n", 18 [pid 6054] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6058 [pid 6058] <... prctl resumed>) = 0 [pid 6057] <... close resumed>) = 0 [pid 6056] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6055] <... write resumed>) = 18 [pid 6058] setpgid(0, 0 executing program [pid 6057] write(1, "executing program\n", 18 [pid 6056] <... bpf resumed>) = 4 [pid 6054] <... exit_group resumed>) = ? [pid 6057] <... write resumed>) = 18 [pid 6055] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6057] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6058] <... setpgid resumed>) = 0 [pid 6058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6057] <... bpf resumed>) = 3 [pid 6056] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6055] <... bpf resumed>) = 3 [pid 6058] <... openat resumed>) = 3 [pid 6057] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6055] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6058] write(3, "1000", 4 [pid 6057] <... bpf resumed>) = 4 [pid 6055] <... bpf resumed>) = 4 [pid 6058] <... write resumed>) = 4 [pid 6054] +++ exited with 0 +++ [pid 6058] close(3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6054, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6058] <... close resumed>) = 0 [pid 6055] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6058] write(1, "executing program\n", 18) = 18 [pid 6058] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6059 attached ) = 3 [pid 6057] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6059] set_robust_list(0x55556540f660, 24 [pid 6058] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6057] <... bpf resumed>) = 5 [pid 6056] <... bpf resumed>) = 5 [pid 6055] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6059 [pid 6059] <... set_robust_list resumed>) = 0 [pid 6058] <... bpf resumed>) = 4 [pid 6057] exit_group(0 [pid 6056] exit_group(0 [pid 6055] exit_group(0 [pid 6059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6056] <... exit_group resumed>) = ? [pid 6059] <... prctl resumed>) = 0 [pid 6058] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6057] <... exit_group resumed>) = ? [pid 6055] <... exit_group resumed>) = ? [pid 6059] setpgid(0, 0 [pid 6058] <... bpf resumed>) = 5 [pid 6057] +++ exited with 0 +++ [pid 6056] +++ exited with 0 +++ [pid 6059] <... setpgid resumed>) = 0 [pid 6058] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6056, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6057, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6058] <... exit_group resumed>) = ? [pid 6059] <... openat resumed>) = 3 [pid 6059] write(3, "1000", 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6059] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6059] close(3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6060 [pid 6059] <... close resumed>) = 0 executing program ./strace-static-x86_64: Process 6060 attached [pid 6059] write(1, "executing program\n", 18) = 18 [pid 6060] set_robust_list(0x55556540f660, 24 [pid 6059] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6061 attached [pid 6061] set_robust_list(0x55556540f660, 24 [pid 6060] <... set_robust_list resumed>) = 0 [pid 6061] <... set_robust_list resumed>) = 0 [pid 6060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6059] <... bpf resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6061 [pid 6060] <... prctl resumed>) = 0 [pid 6061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6060] setpgid(0, 0 [pid 6059] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6055] +++ exited with 0 +++ [pid 6061] setpgid(0, 0 [pid 6060] <... setpgid resumed>) = 0 [pid 6058] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6055, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6061] <... setpgid resumed>) = 0 [pid 6060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6059] <... bpf resumed>) = 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6058, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6060] <... openat resumed>) = 3 [pid 6059] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6061] <... openat resumed>) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6061] write(3, "1000", 4 [pid 6060] write(3, "1000", 4 [pid 6061] <... write resumed>) = 4 [pid 6060] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6062 attached [pid 6061] close(3 [pid 6060] close(3 [pid 6062] set_robust_list(0x55556540f660, 24 [pid 6061] <... close resumed>) = 0 [pid 6062] <... set_robust_list resumed>) = 0 [pid 6061] write(1, "executing program\n", 18 [pid 6060] <... close resumed>) = 0 executing program [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6062 [pid 6062] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 6061] <... write resumed>) = 18 [pid 6060] write(1, "executing program\n", 18) = 18 [pid 6060] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6062] <... prctl resumed>) = 0 [pid 6061] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6060] <... bpf resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6062] setpgid(0, 0 [pid 6060] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6063 attached [pid 6062] <... setpgid resumed>) = 0 [pid 6061] <... bpf resumed>) = 3 [pid 6060] <... bpf resumed>) = 4 [pid 6063] set_robust_list(0x55556540f660, 24 [pid 6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6061] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6059] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6063 [pid 6063] <... set_robust_list resumed>) = 0 [pid 6062] <... openat resumed>) = 3 [pid 6061] <... bpf resumed>) = 4 [pid 6060] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6059] exit_group(0 [pid 6063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6062] write(3, "1000", 4 [pid 6061] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6060] <... bpf resumed>) = 5 [pid 6059] <... exit_group resumed>) = ? [pid 6063] <... prctl resumed>) = 0 [pid 6062] <... write resumed>) = 4 [pid 6061] <... bpf resumed>) = 5 [pid 6060] exit_group(0 [pid 6059] +++ exited with 0 +++ [pid 6063] setpgid(0, 0 [pid 6062] close(3 [pid 6061] exit_group(0 [pid 6060] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6059, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6063] <... setpgid resumed>) = 0 [pid 6062] <... close resumed>) = 0 executing program [pid 6061] <... exit_group resumed>) = ? [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6062] write(1, "executing program\n", 18) = 18 [pid 6062] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6062] <... bpf resumed>) = 3 [pid 6062] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6063] <... openat resumed>) = 3 [pid 6062] <... bpf resumed>) = 4 [pid 6060] +++ exited with 0 +++ [pid 6063] write(3, "1000", 4) = 4 [pid 6061] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6060, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6061, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6063] close(3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6063] <... close resumed>) = 0 [pid 6062] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 executing program [pid 6063] write(1, "executing program\n", 18) = 18 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6063] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6065 attached ./strace-static-x86_64: Process 6064 attached [pid 6063] <... bpf resumed>) = 3 [pid 6065] set_robust_list(0x55556540f660, 24 [pid 6064] set_robust_list(0x55556540f660, 24 [pid 6063] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6064 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6065] <... set_robust_list resumed>) = 0 [pid 6064] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6066 attached [pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6063] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6065 [pid 6066] set_robust_list(0x55556540f660, 24 [pid 6065] <... prctl resumed>) = 0 [pid 6064] <... prctl resumed>) = 0 [pid 6063] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6066] <... set_robust_list resumed>) = 0 [pid 6065] setpgid(0, 0 [pid 6064] setpgid(0, 0 [pid 6065] <... setpgid resumed>) = 0 [pid 6064] <... setpgid resumed>) = 0 [pid 6066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6063] <... bpf resumed>) = 5 [pid 6062] <... bpf resumed>) = 5 [pid 6066] <... prctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6066 [pid 6065] <... openat resumed>) = 3 [pid 6066] setpgid(0, 0 [pid 6065] write(3, "1000", 4 [pid 6064] <... openat resumed>) = 3 [pid 6063] exit_group(0 [pid 6062] exit_group(0 [pid 6066] <... setpgid resumed>) = 0 [pid 6065] <... write resumed>) = 4 [pid 6062] <... exit_group resumed>) = ? [pid 6066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6065] close(3 [pid 6064] write(3, "1000", 4 [pid 6063] <... exit_group resumed>) = ? [pid 6064] <... write resumed>) = 4 [pid 6066] <... openat resumed>) = 3 [pid 6065] <... close resumed>) = 0 [pid 6064] close(3executing program executing program [pid 6066] write(3, "1000", 4 [pid 6065] write(1, "executing program\n", 18 [pid 6066] <... write resumed>) = 4 [pid 6064] <... close resumed>) = 0 [pid 6066] close(3 [pid 6065] <... write resumed>) = 18 [pid 6064] write(1, "executing program\n", 18 executing program [pid 6066] <... close resumed>) = 0 [pid 6065] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6064] <... write resumed>) = 18 [pid 6066] write(1, "executing program\n", 18) = 18 [pid 6064] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6066] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6065] <... bpf resumed>) = 3 [pid 6064] <... bpf resumed>) = 3 [pid 6066] <... bpf resumed>) = 3 [pid 6065] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6064] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6066] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6065] <... bpf resumed>) = 4 [pid 6064] <... bpf resumed>) = 4 [pid 6066] <... bpf resumed>) = 4 [pid 6065] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6064] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6066] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6062] +++ exited with 0 +++ [pid 6063] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6062, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6063, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6067 attached [pid 6067] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6068 attached ) = 0 [pid 6066] <... bpf resumed>) = 5 [pid 6065] <... bpf resumed>) = 5 [pid 6064] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6067 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6068 [pid 6068] set_robust_list(0x55556540f660, 24 [pid 6067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6068] <... set_robust_list resumed>) = 0 [pid 6067] <... prctl resumed>) = 0 [pid 6066] exit_group(0 [pid 6068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6067] setpgid(0, 0 [pid 6066] <... exit_group resumed>) = ? [pid 6065] exit_group(0 [pid 6068] <... prctl resumed>) = 0 [pid 6067] <... setpgid resumed>) = 0 [pid 6066] +++ exited with 0 +++ [pid 6065] <... exit_group resumed>) = ? [pid 6064] exit_group(0 [pid 6068] setpgid(0, 0 [pid 6067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6064] <... exit_group resumed>) = ? [pid 6068] <... setpgid resumed>) = 0 [pid 6068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6067] <... openat resumed>) = 3 [pid 6068] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6066, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6068] write(3, "1000", 4 [pid 6067] write(3, "1000", 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6068] <... write resumed>) = 4 [pid 6067] <... write resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6068] close(3 [pid 6067] close(3executing program ) = 0 [pid 6067] write(1, "executing program\n", 18) = 18 [pid 6068] <... close resumed>) = 0 [pid 6067] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6068] write(1, "executing program\n", 18 [pid 6065] +++ exited with 0 +++ [pid 6067] <... bpf resumed>) = 3 [pid 6068] <... write resumed>) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6065, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6068] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6067] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6068] <... bpf resumed>) = 3 [pid 6067] <... bpf resumed>) = 4 [pid 6064] +++ exited with 0 +++ [pid 6068] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6067] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6069 attached [pid 6068] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6064, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] <... restart_syscall resumed>) = 0 [pid 6069] set_robust_list(0x55556540f660, 24) = 0 [pid 6069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6068] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6067] <... bpf resumed>) = 5 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6069 [pid 6069] setpgid(0, 0 [pid 6068] <... bpf resumed>) = 5 [pid 6067] exit_group(0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6069] <... setpgid resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6068] exit_group(0 [pid 6067] <... exit_group resumed>) = ? [pid 6068] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6070 attached [pid 6069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6070 [pid 6070] set_robust_list(0x55556540f660, 24 [pid 6067] +++ exited with 0 +++ [pid 6070] <... set_robust_list resumed>) = 0 [pid 6069] <... openat resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6071 attached [pid 6070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6069] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6067, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6071] set_robust_list(0x55556540f660, 24 [pid 6070] <... prctl resumed>) = 0 [pid 6069] <... write resumed>) = 4 [pid 6068] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6071 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6071] <... set_robust_list resumed>) = 0 [pid 6070] setpgid(0, 0 [pid 6069] close(3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6070] <... setpgid resumed>) = 0 [pid 6069] <... close resumed>) = 0 [pid 6071] <... prctl resumed>) = 0 [pid 6070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6068, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6069] write(1, "executing program\n", 18 [pid 6071] setpgid(0, 0 [pid 6069] <... write resumed>) = 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6072 attached [pid 6071] <... setpgid resumed>) = 0 [pid 6070] <... openat resumed>) = 3 [pid 6069] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6070] write(3, "1000", 4 [pid 6069] <... bpf resumed>) = 3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6072] set_robust_list(0x55556540f660, 24 [pid 6070] <... write resumed>) = 4 [pid 6069] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6072] <... set_robust_list resumed>) = 0 [pid 6071] <... openat resumed>) = 3 [pid 6070] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6072 [pid 6069] <... bpf resumed>) = 4 [pid 6072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6072] <... prctl resumed>) = 0 [pid 6070] <... close resumed>) = 0 ./strace-static-x86_64: Process 6073 attached [pid 6070] write(1, "executing program\n", 18executing program [pid 6072] setpgid(0, 0 [pid 6070] <... write resumed>) = 18 [pid 6072] <... setpgid resumed>) = 0 [pid 6071] write(3, "1000", 4 [pid 6070] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6073] set_robust_list(0x55556540f660, 24 [pid 6072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6071] <... write resumed>) = 4 [pid 6073] <... set_robust_list resumed>) = 0 [pid 6070] <... bpf resumed>) = 3 [pid 6071] close(3 [pid 6073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6069] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6073 [pid 6073] <... prctl resumed>) = 0 [pid 6072] <... openat resumed>) = 3 [pid 6071] <... close resumed>) = 0 [pid 6073] setpgid(0, 0) = 0 [pid 6073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6072] write(3, "1000", 4 [pid 6071] write(1, "executing program\n", 18 [pid 6070] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6069] <... bpf resumed>) = 5 [pid 6073] <... openat resumed>) = 3 [pid 6072] <... write resumed>) = 4 [pid 6071] <... write resumed>) = 18 [pid 6073] write(3, "1000", 4) = 4 [pid 6071] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6073] close(3 [pid 6072] close(3 [pid 6071] <... bpf resumed>) = 3 [pid 6070] <... bpf resumed>) = 4 [pid 6069] exit_group(0 [pid 6073] <... close resumed>) = 0 [pid 6072] <... close resumed>) = 0 [pid 6071] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6069] <... exit_group resumed>) = ? [pid 6070] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6073] write(1, "executing program\n", 18executing program [pid 6072] write(1, "executing program\n", 18executing program [pid 6073] <... write resumed>) = 18 [pid 6073] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6073] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6069] +++ exited with 0 +++ [pid 6072] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6069, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6072] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6073] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6071] <... bpf resumed>) = 4 [pid 6072] <... bpf resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6072] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6071] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6074 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6074 [pid 6074] set_robust_list(0x55556540f660, 24 [pid 6073] <... bpf resumed>) = 5 [pid 6072] <... bpf resumed>) = 4 [pid 6071] <... bpf resumed>) = 5 [pid 6070] <... bpf resumed>) = 5 [pid 6074] <... set_robust_list resumed>) = 0 [pid 6073] exit_group(0 [pid 6072] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6073] <... exit_group resumed>) = ? [pid 6071] exit_group(0 [pid 6070] exit_group(0 [pid 6074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6073] +++ exited with 0 +++ [pid 6072] <... bpf resumed>) = 5 [pid 6071] <... exit_group resumed>) = ? [pid 6070] <... exit_group resumed>) = ? [pid 6074] <... prctl resumed>) = 0 [pid 6072] exit_group(0 [pid 6070] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6073, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6074] setpgid(0, 0 [pid 6072] <... exit_group resumed>) = ? [pid 6074] <... setpgid resumed>) = 0 [pid 6074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6074] write(3, "1000", 4) = 4 [pid 6074] close(3) = 0 executing program [pid 6074] write(1, "executing program\n", 18) = 18 [pid 6074] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6074] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6074] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6072] +++ exited with 0 +++ [pid 6071] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6072, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6071, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6075 attached [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6076 attached [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6076 ./strace-static-x86_64: Process 6078 attached ./strace-static-x86_64: Process 6077 attached [pid 6076] set_robust_list(0x55556540f660, 24 [pid 6075] set_robust_list(0x55556540f660, 24 [pid 6074] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6075 [pid 6075] <... set_robust_list resumed>) = 0 [pid 6074] exit_group(0 [pid 6078] set_robust_list(0x55556540f660, 24 [pid 6077] set_robust_list(0x55556540f660, 24 [pid 6076] <... set_robust_list resumed>) = 0 [pid 6075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6074] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6077 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6078 [pid 6078] <... set_robust_list resumed>) = 0 [pid 6077] <... set_robust_list resumed>) = 0 [pid 6076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6076] <... prctl resumed>) = 0 [pid 6076] setpgid(0, 0 [pid 6078] <... prctl resumed>) = 0 [pid 6077] <... prctl resumed>) = 0 [pid 6075] <... prctl resumed>) = 0 [pid 6074] +++ exited with 0 +++ [pid 6075] setpgid(0, 0 [pid 6078] setpgid(0, 0 [pid 6077] setpgid(0, 0 [pid 6076] <... setpgid resumed>) = 0 [pid 6075] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6074, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6078] <... setpgid resumed>) = 0 [pid 6077] <... setpgid resumed>) = 0 [pid 6076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] <... openat resumed>) = 3 [pid 6076] <... openat resumed>) = 3 [pid 6075] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6075] write(3, "1000", 4 [pid 6078] write(3, "1000", 4 [pid 6077] <... openat resumed>) = 3 [pid 6076] write(3, "1000", 4 [pid 6075] <... write resumed>) = 4 ./strace-static-x86_64: Process 6079 attached [pid 6078] <... write resumed>) = 4 [pid 6077] write(3, "1000", 4 [pid 6076] <... write resumed>) = 4 [pid 6075] close(3 [pid 6079] set_robust_list(0x55556540f660, 24 [pid 6078] close(3 [pid 6077] <... write resumed>) = 4 [pid 6076] close(3 [pid 6075] <... close resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6079 [pid 6079] <... set_robust_list resumed>) = 0 [pid 6078] <... close resumed>) = 0 executing program [pid 6077] close(3 [pid 6076] <... close resumed>) = 0 [pid 6075] write(1, "executing program\n", 18executing program executing program [pid 6079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6078] write(1, "executing program\n", 18 [pid 6077] <... close resumed>) = 0 [pid 6076] write(1, "executing program\n", 18 [pid 6075] <... write resumed>) = 18 [pid 6079] <... prctl resumed>) = 0 [pid 6078] <... write resumed>) = 18 executing program [pid 6077] write(1, "executing program\n", 18 [pid 6076] <... write resumed>) = 18 [pid 6079] setpgid(0, 0 [pid 6078] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6077] <... write resumed>) = 18 [pid 6076] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6075] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6079] <... setpgid resumed>) = 0 [pid 6078] <... bpf resumed>) = 3 [pid 6077] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6076] <... bpf resumed>) = 3 [pid 6075] <... bpf resumed>) = 3 [pid 6079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6077] <... bpf resumed>) = 3 [pid 6076] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6075] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6079] <... openat resumed>) = 3 [pid 6078] <... bpf resumed>) = 4 [pid 6077] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6076] <... bpf resumed>) = 4 [pid 6079] write(3, "1000", 4 [pid 6078] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6077] <... bpf resumed>) = 4 [pid 6075] <... bpf resumed>) = 4 [pid 6079] <... write resumed>) = 4 [pid 6077] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6076] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6075] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6079] close(3 [pid 6078] <... bpf resumed>) = 5 [pid 6077] <... bpf resumed>) = 5 [pid 6076] <... bpf resumed>) = 5 [pid 6075] <... bpf resumed>) = 5 [pid 6079] <... close resumed>) = 0 executing program [pid 6079] write(1, "executing program\n", 18 [pid 6075] exit_group(0 [pid 6079] <... write resumed>) = 18 [pid 6076] exit_group(0 [pid 6079] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6077] exit_group(0 [pid 6076] <... exit_group resumed>) = ? [pid 6078] exit_group(0 [pid 6075] <... exit_group resumed>) = ? [pid 6078] <... exit_group resumed>) = ? [pid 6079] <... bpf resumed>) = 3 [pid 6077] <... exit_group resumed>) = ? [pid 6077] +++ exited with 0 +++ [pid 6075] +++ exited with 0 +++ [pid 6076] +++ exited with 0 +++ [pid 6079] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6078] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6075, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6079] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6077, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6079] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6080 attached [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6081 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6081] set_robust_list(0x55556540f660, 24) = 0 [pid 6081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6081 [pid 6081] <... prctl resumed>) = 0 [pid 6081] setpgid(0, 0./strace-static-x86_64: Process 6082 attached [pid 6080] set_robust_list(0x55556540f660, 24 [pid 6079] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6080 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6082 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6081] <... setpgid resumed>) = 0 [pid 6079] exit_group(0 [pid 6081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6083 attached ) = 3 [pid 6080] <... set_robust_list resumed>) = 0 [pid 6079] <... exit_group resumed>) = ? [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6083 [pid 6083] set_robust_list(0x55556540f660, 24 [pid 6080] <... prctl resumed>) = 0 [pid 6083] <... set_robust_list resumed>) = 0 [pid 6083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6082] set_robust_list(0x55556540f660, 24 [pid 6081] write(3, "1000", 4 [pid 6080] setpgid(0, 0 [pid 6079] +++ exited with 0 +++ executing program [pid 6083] <... prctl resumed>) = 0 [pid 6082] <... set_robust_list resumed>) = 0 [pid 6081] <... write resumed>) = 4 [pid 6080] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6081] close(3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6081] <... close resumed>) = 0 [pid 6081] write(1, "executing program\n", 18 [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6081] <... write resumed>) = 18 [pid 6081] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6083] setpgid(0, 0 [pid 6082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6081] <... bpf resumed>) = 3 [pid 6080] <... openat resumed>) = 3 [pid 6083] <... setpgid resumed>) = 0 [pid 6082] <... prctl resumed>) = 0 [pid 6080] write(3, "1000", 4 [pid 6081] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6082] setpgid(0, 0 [pid 6081] <... bpf resumed>) = 4 [pid 6080] <... write resumed>) = 4 [pid 6081] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6082] <... setpgid resumed>) = 0 [pid 6080] close(3 [pid 6083] <... openat resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 6082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6083] write(3, "1000", 4 [pid 6080] write(1, "executing program\n", 18 [pid 6083] <... write resumed>) = 4 [pid 6080] <... write resumed>) = 18 [pid 6083] close(3 [pid 6082] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6084 attached [pid 6083] <... close resumed>) = 0 [pid 6082] write(3, "1000", 4 [pid 6080] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6083] write(1, "executing program\n", 18executing program [pid 6084] set_robust_list(0x55556540f660, 24 [pid 6083] <... write resumed>) = 18 [pid 6082] <... write resumed>) = 4 [pid 6081] <... bpf resumed>) = 5 [pid 6080] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6084 [pid 6082] close(3 [pid 6081] exit_group(0 [pid 6084] <... set_robust_list resumed>) = 0 [pid 6083] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6080] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6081] <... exit_group resumed>) = ? [pid 6084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6080] <... bpf resumed>) = 4 [pid 6083] <... bpf resumed>) = 3 [pid 6084] <... prctl resumed>) = 0 [pid 6084] setpgid(0, 0 [pid 6080] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6084] <... setpgid resumed>) = 0 executing program [pid 6083] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6082] <... close resumed>) = 0 [pid 6084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6082] write(1, "executing program\n", 18 [pid 6084] <... openat resumed>) = 3 [pid 6084] write(3, "1000", 4 [pid 6082] <... write resumed>) = 18 [pid 6082] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6084] <... write resumed>) = 4 [pid 6084] close(3 [pid 6082] <... bpf resumed>) = 3 [pid 6084] <... close resumed>) = 0 [pid 6082] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6084] write(1, "executing program\n", 18) = 18 [pid 6083] <... bpf resumed>) = 4 [pid 6082] <... bpf resumed>) = 4 [pid 6084] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6083] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6082] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6084] <... bpf resumed>) = 3 [pid 6081] +++ exited with 0 +++ [pid 6084] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6081, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6084] <... bpf resumed>) = 4 [pid 6084] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6083] <... bpf resumed>) = 5 [pid 6082] <... bpf resumed>) = 5 [pid 6080] <... bpf resumed>) = 5 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6082] exit_group(0 [pid 6080] exit_group(0 [pid 6082] <... exit_group resumed>) = ? [pid 6080] <... exit_group resumed>) = ? [pid 6084] exit_group(0 [pid 6083] exit_group(0 [pid 6082] +++ exited with 0 +++ [pid 6084] <... exit_group resumed>) = ? [pid 6083] <... exit_group resumed>) = ? [pid 6080] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6085 attached ./strace-static-x86_64: Process 6086 attached [pid 6085] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6085 [pid 6086] set_robust_list(0x55556540f660, 24 [pid 6085] <... set_robust_list resumed>) = 0 [pid 6086] <... set_robust_list resumed>) = 0 [pid 6086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6086 [pid 6085] <... prctl resumed>) = 0 [pid 6086] <... prctl resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6087 attached [pid 6086] setpgid(0, 0 [pid 6085] setpgid(0, 0 [pid 6087] set_robust_list(0x55556540f660, 24 [pid 6086] <... setpgid resumed>) = 0 [pid 6085] <... setpgid resumed>) = 0 [pid 6084] +++ exited with 0 +++ [pid 6083] +++ exited with 0 +++ [pid 6085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6084, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6087 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6083, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6086] <... openat resumed>) = 3 [pid 6087] <... set_robust_list resumed>) = 0 executing program [pid 6086] write(3, "1000", 4 [pid 6087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6085] <... openat resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6086] <... write resumed>) = 4 ./strace-static-x86_64: Process 6088 attached [pid 6086] close(3) = 0 [pid 6088] set_robust_list(0x55556540f660, 24 [pid 6086] write(1, "executing program\n", 18) = 18 [pid 6088] <... set_robust_list resumed>) = 0 [pid 6086] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6087] <... prctl resumed>) = 0 [pid 6085] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6088 [pid 6088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6087] setpgid(0, 0 [pid 6086] <... bpf resumed>) = 3 [pid 6085] <... write resumed>) = 4 [pid 6087] <... setpgid resumed>) = 0 [pid 6085] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6088] <... prctl resumed>) = 0 [pid 6086] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6089 attached executing program [pid 6088] setpgid(0, 0 [pid 6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6086] <... bpf resumed>) = 4 [pid 6085] <... close resumed>) = 0 [pid 6088] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6089 [pid 6085] write(1, "executing program\n", 18 [pid 6089] set_robust_list(0x55556540f660, 24 [pid 6088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6085] <... write resumed>) = 18 [pid 6087] <... openat resumed>) = 3 [pid 6086] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6085] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6089] <... set_robust_list resumed>) = 0 [pid 6088] <... openat resumed>) = 3 [pid 6087] write(3, "1000", 4 [pid 6086] <... bpf resumed>) = 5 [pid 6087] <... write resumed>) = 4 [pid 6088] write(3, "1000", 4 [pid 6087] close(3 [pid 6088] <... write resumed>) = 4 executing program [pid 6088] close(3) = 0 [pid 6088] write(1, "executing program\n", 18 [pid 6086] exit_group(0 [pid 6088] <... write resumed>) = 18 [pid 6088] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6086] <... exit_group resumed>) = ? [pid 6089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6087] <... close resumed>) = 0 [pid 6085] <... bpf resumed>) = 3 [pid 6089] <... prctl resumed>) = 0 [pid 6088] <... bpf resumed>) = 3 [pid 6087] write(1, "executing program\n", 18 [pid 6086] +++ exited with 0 +++ executing program [pid 6085] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6089] setpgid(0, 0 [pid 6088] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6087] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6089] <... setpgid resumed>) = 0 [pid 6088] <... bpf resumed>) = 4 [pid 6085] <... bpf resumed>) = 4 [pid 6089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6089] <... openat resumed>) = 3 [pid 6087] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6085] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6089] write(3, "1000", 4 [pid 6087] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6090 attached [pid 6089] <... write resumed>) = 4 [pid 6087] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6089] close(3 [pid 6090] set_robust_list(0x55556540f660, 24 [pid 6089] <... close resumed>) = 0 [pid 6089] write(1, "executing program\n", 18 [pid 6090] <... set_robust_list resumed>) = 0 executing program [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6090 [pid 6090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6089] <... write resumed>) = 18 [pid 6087] <... bpf resumed>) = 4 [pid 6090] <... prctl resumed>) = 0 [pid 6088] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6090] setpgid(0, 0) = 0 [pid 6089] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6085] <... bpf resumed>) = 5 [pid 6090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6089] <... bpf resumed>) = 3 [pid 6088] <... bpf resumed>) = 5 [pid 6087] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6085] exit_group(0 [pid 6090] <... openat resumed>) = 3 [pid 6089] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6088] exit_group(0 [pid 6090] write(3, "1000", 4 [pid 6088] <... exit_group resumed>) = ? [pid 6087] <... bpf resumed>) = 5 [pid 6085] <... exit_group resumed>) = ? [pid 6090] <... write resumed>) = 4 [pid 6090] close(3executing program ) = 0 [pid 6090] write(1, "executing program\n", 18) = 18 [pid 6090] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6089] <... bpf resumed>) = 4 [pid 6087] exit_group(0 [pid 6090] <... bpf resumed>) = 3 [pid 6089] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6087] <... exit_group resumed>) = ? [pid 6090] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6088] +++ exited with 0 +++ [pid 6090] <... bpf resumed>) = 4 [pid 6087] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6087, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6090] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6089] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6091 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6091 [pid 6089] exit_group(0 [pid 6091] set_robust_list(0x55556540f660, 24 [pid 6089] <... exit_group resumed>) = ? [pid 6091] <... set_robust_list resumed>) = 0 [pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6091] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6092 attached [pid 6092] set_robust_list(0x55556540f660, 24 [pid 6091] setpgid(0, 0 [pid 6092] <... set_robust_list resumed>) = 0 [pid 6091] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6092 [pid 6092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6092] setpgid(0, 0) = 0 [pid 6092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6091] <... openat resumed>) = 3 [pid 6090] <... bpf resumed>) = 5 [pid 6085] +++ exited with 0 +++ [pid 6092] write(3, "1000", 4 [pid 6091] write(3, "1000", 4 [pid 6090] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6085, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6092] <... write resumed>) = 4 [pid 6091] <... write resumed>) = 4 [pid 6092] close(3 [pid 6091] close(3 [pid 6090] <... exit_group resumed>) = ? [pid 6092] <... close resumed>) = 0 [pid 6091] <... close resumed>) = 0 [pid 6092] write(1, "executing program\n", 18 [pid 6091] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6092] <... write resumed>) = 18 [pid 6091] <... write resumed>) = 18 [pid 6091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program executing program ./strace-static-x86_64: Process 6093 attached [pid 6093] set_robust_list(0x55556540f660, 24 [pid 6092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6091] <... bpf resumed>) = 3 [pid 6090] +++ exited with 0 +++ [pid 6089] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6093 [pid 6093] <... set_robust_list resumed>) = 0 [pid 6091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6092] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6093] <... prctl resumed>) = 0 [pid 6092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6093] setpgid(0, 0) = 0 [pid 6093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6092] <... bpf resumed>) = 4 [pid 6091] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6094 attached [pid 6093] <... openat resumed>) = 3 [pid 6092] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6091] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6094] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6094 ./strace-static-x86_64: Process 6095 attached [pid 6094] <... set_robust_list resumed>) = 0 [pid 6095] set_robust_list(0x55556540f660, 24 [pid 6094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6093] write(3, "1000", 4 [pid 6095] <... set_robust_list resumed>) = 0 [pid 6094] <... prctl resumed>) = 0 [pid 6093] <... write resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6095 [pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6093] close(3 [pid 6094] setpgid(0, 0 [pid 6093] <... close resumed>) = 0 [pid 6095] <... prctl resumed>) = 0 [pid 6094] <... setpgid resumed>) = 0 [pid 6093] write(1, "executing program\n", 18 [pid 6091] <... bpf resumed>) = 5 [pid 6095] setpgid(0, 0 [pid 6093] <... write resumed>) = 18 [pid 6095] <... setpgid resumed>) = 0 [pid 6094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6093] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6094] <... openat resumed>) = 3 [pid 6092] <... bpf resumed>) = 5 [pid 6095] <... openat resumed>) = 3 [pid 6094] write(3, "1000", 4 [pid 6095] write(3, "1000", 4 [pid 6094] <... write resumed>) = 4 [pid 6095] <... write resumed>) = 4 [pid 6094] close(3 [pid 6092] exit_group(0 [pid 6095] close(3 [pid 6094] <... close resumed>) = 0 [pid 6094] write(1, "executing program\n", 18 [pid 6093] <... bpf resumed>) = 3 [pid 6092] <... exit_group resumed>) = ? [pid 6091] exit_group(0 [pid 6095] <... close resumed>) = 0 [pid 6094] <... write resumed>) = 18 executing program [pid 6093] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6091] <... exit_group resumed>) = ? executing program [pid 6095] write(1, "executing program\n", 18 [pid 6094] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6093] <... bpf resumed>) = 4 [pid 6092] +++ exited with 0 +++ [pid 6095] <... write resumed>) = 18 [pid 6094] <... bpf resumed>) = 3 [pid 6091] +++ exited with 0 +++ [pid 6093] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6094] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6095] <... bpf resumed>) = 3 [pid 6094] <... bpf resumed>) = 4 [pid 6095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6094] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6095] <... bpf resumed>) = 4 [pid 6095] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6096 attached ./strace-static-x86_64: Process 6097 attached [pid 6095] <... bpf resumed>) = 5 [pid 6094] <... bpf resumed>) = 5 [pid 6093] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6096 [pid 6097] set_robust_list(0x55556540f660, 24 [pid 6095] exit_group(0 [pid 6093] exit_group(0 [pid 6096] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6097 [pid 6096] <... set_robust_list resumed>) = 0 [pid 6097] <... set_robust_list resumed>) = 0 [pid 6096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6095] <... exit_group resumed>) = ? [pid 6094] exit_group(0 [pid 6093] <... exit_group resumed>) = ? [pid 6097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6096] <... prctl resumed>) = 0 [pid 6095] +++ exited with 0 +++ [pid 6094] <... exit_group resumed>) = ? [pid 6096] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6096] <... setpgid resumed>) = 0 [pid 6097] <... prctl resumed>) = 0 [pid 6097] setpgid(0, 0) = 0 [pid 6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6097] <... openat resumed>) = 3 [pid 6097] write(3, "1000", 4) = 4 [pid 6097] close(3 [pid 6096] <... openat resumed>) = 3 [pid 6097] <... close resumed>) = 0 [pid 6096] write(3, "1000", 4executing program [pid 6097] write(1, "executing program\n", 18 [pid 6096] <... write resumed>) = 4 [pid 6097] <... write resumed>) = 18 [pid 6096] close(3 [pid 6097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6096] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6096] write(1, "executing program\n", 18executing program ) = 18 [pid 6096] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6097] <... bpf resumed>) = 3 [pid 6096] <... bpf resumed>) = 3 [pid 6096] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6093] +++ exited with 0 +++ ./strace-static-x86_64: Process 6098 attached [pid 6096] <... bpf resumed>) = 4 [pid 6094] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6098] set_robust_list(0x55556540f660, 24 [pid 6097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6096] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6098] <... set_robust_list resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6098 [pid 6098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6097] <... bpf resumed>) = 4 [pid 6098] <... prctl resumed>) = 0 [pid 6098] setpgid(0, 0 [pid 6097] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6098] <... setpgid resumed>) = 0 [pid 6098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6098] write(3, "1000", 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6098] <... write resumed>) = 4 [pid 6098] close(3) = 0 executing program [pid 6098] write(1, "executing program\n", 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6099 attached [pid 6098] <... write resumed>) = 18 [pid 6098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6099] set_robust_list(0x55556540f660, 24 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6099] <... set_robust_list resumed>) = 0 [pid 6098] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6099 ./strace-static-x86_64: Process 6100 attached [pid 6099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6097] <... bpf resumed>) = 5 [pid 6096] <... bpf resumed>) = 5 [pid 6100] set_robust_list(0x55556540f660, 24 [pid 6099] <... prctl resumed>) = 0 [pid 6098] <... bpf resumed>) = 4 [pid 6097] exit_group(0 [pid 6096] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6100 [pid 6100] <... set_robust_list resumed>) = 0 [pid 6099] setpgid(0, 0 [pid 6098] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6097] <... exit_group resumed>) = ? [pid 6096] <... exit_group resumed>) = ? [pid 6100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6099] <... setpgid resumed>) = 0 [pid 6100] <... prctl resumed>) = 0 [pid 6099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6100] setpgid(0, 0) = 0 [pid 6100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6100] write(3, "1000", 4) = 4 [pid 6100] close(3) = 0 [pid 6099] <... openat resumed>) = 3 executing program [pid 6100] write(1, "executing program\n", 18) = 18 [pid 6100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6099] write(3, "1000", 4) = 4 [pid 6099] close(3) = 0 [pid 6099] write(1, "executing program\n", 18executing program [pid 6100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6099] <... write resumed>) = 18 [pid 6100] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6099] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6097] +++ exited with 0 +++ [pid 6096] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6096, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6101 attached ./strace-static-x86_64: Process 6102 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6101 [pid 6101] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6102 [pid 6101] <... set_robust_list resumed>) = 0 [pid 6102] set_robust_list(0x55556540f660, 24 [pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6102] <... set_robust_list resumed>) = 0 [pid 6102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6102] setpgid(0, 0 [pid 6101] <... prctl resumed>) = 0 [pid 6101] setpgid(0, 0) = 0 [pid 6102] <... setpgid resumed>) = 0 [pid 6102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6102] <... openat resumed>) = 3 [pid 6101] <... openat resumed>) = 3 [pid 6100] <... bpf resumed>) = 5 [pid 6099] <... bpf resumed>) = 5 [pid 6098] <... bpf resumed>) = 5 [pid 6102] write(3, "1000", 4 [pid 6101] write(3, "1000", 4 [pid 6100] exit_group(0 [pid 6099] exit_group(0 [pid 6098] exit_group(0 [pid 6102] <... write resumed>) = 4 [pid 6101] <... write resumed>) = 4 [pid 6100] <... exit_group resumed>) = ? [pid 6099] <... exit_group resumed>) = ? [pid 6098] <... exit_group resumed>) = ? [pid 6102] close(3 [pid 6101] close(3 [pid 6100] +++ exited with 0 +++ [pid 6099] +++ exited with 0 +++ [pid 6098] +++ exited with 0 +++ executing program [pid 6102] <... close resumed>) = 0 [pid 6102] write(1, "executing program\n", 18 [pid 6101] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6102] <... write resumed>) = 18 [pid 6101] write(1, "executing program\n", 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6101] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6102] <... bpf resumed>) = 3 [pid 6102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6102] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6101] <... bpf resumed>) = 3 [pid 6101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6101] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6104 attached ./strace-static-x86_64: Process 6103 attached [pid 6102] <... bpf resumed>) = 5 [pid 6101] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6103 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6104 [pid 6104] set_robust_list(0x55556540f660, 24 [pid 6103] set_robust_list(0x55556540f660, 24 [pid 6102] exit_group(0 [pid 6101] exit_group(0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6104] <... set_robust_list resumed>) = 0 [pid 6103] <... set_robust_list resumed>) = 0 [pid 6102] <... exit_group resumed>) = ? [pid 6104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6101] <... exit_group resumed>) = ? [pid 6104] <... prctl resumed>) = 0 [pid 6103] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6105 attached [pid 6104] setpgid(0, 0 [pid 6103] setpgid(0, 0 [pid 6102] +++ exited with 0 +++ [pid 6101] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6105 [pid 6104] <... setpgid resumed>) = 0 [pid 6103] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6101, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6106 attached [pid 6105] set_robust_list(0x55556540f660, 24 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6107 attached [pid 6106] set_robust_list(0x55556540f660, 24 [pid 6105] <... set_robust_list resumed>) = 0 [pid 6104] <... openat resumed>) = 3 [pid 6103] <... openat resumed>) = 3 [pid 6107] set_robust_list(0x55556540f660, 24 [pid 6106] <... set_robust_list resumed>) = 0 [pid 6105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6104] write(3, "1000", 4 [pid 6103] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6106 [pid 6103] <... write resumed>) = 4 [pid 6103] close(3 [pid 6104] <... write resumed>) = 4 [pid 6103] <... close resumed>) = 0 [pid 6106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6104] close(3 [pid 6103] write(1, "executing program\n", 18executing program executing program [pid 6107] <... set_robust_list resumed>) = 0 [pid 6106] <... prctl resumed>) = 0 [pid 6105] <... prctl resumed>) = 0 [pid 6104] <... close resumed>) = 0 [pid 6103] <... write resumed>) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6107 [pid 6107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6106] setpgid(0, 0 [pid 6105] setpgid(0, 0 [pid 6104] write(1, "executing program\n", 18 [pid 6103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6107] <... prctl resumed>) = 0 [pid 6106] <... setpgid resumed>) = 0 [pid 6105] <... setpgid resumed>) = 0 [pid 6104] <... write resumed>) = 18 [pid 6107] setpgid(0, 0 [pid 6105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6103] <... bpf resumed>) = 3 [pid 6107] <... setpgid resumed>) = 0 [pid 6106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6105] <... openat resumed>) = 3 [pid 6104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 6103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6105] write(3, "1000", 4) = 4 [pid 6104] <... bpf resumed>) = 3 [pid 6106] <... openat resumed>) = 3 [pid 6105] close(3) = 0 [pid 6105] write(1, "executing program\n", 18) = 18 [pid 6105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6107] <... openat resumed>) = 3 [pid 6106] write(3, "1000", 4 [pid 6104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6103] <... bpf resumed>) = 4 [pid 6105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6105] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6107] write(3, "1000", 4 [pid 6106] <... write resumed>) = 4 [pid 6105] <... bpf resumed>) = 5 [pid 6107] <... write resumed>) = 4 [pid 6106] close(3executing program executing program [pid 6104] <... bpf resumed>) = 4 [pid 6103] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6107] close(3 [pid 6106] <... close resumed>) = 0 [pid 6107] <... close resumed>) = 0 [pid 6106] write(1, "executing program\n", 18 [pid 6105] exit_group(0 [pid 6107] write(1, "executing program\n", 18 [pid 6106] <... write resumed>) = 18 [pid 6105] <... exit_group resumed>) = ? [pid 6104] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6103] <... bpf resumed>) = 5 [pid 6107] <... write resumed>) = 18 [pid 6106] <... bpf resumed>) = 3 [pid 6105] +++ exited with 0 +++ [pid 6104] <... bpf resumed>) = 5 [pid 6103] exit_group(0 [pid 6107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6104] exit_group(0 [pid 6103] <... exit_group resumed>) = ? [pid 6107] <... bpf resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6104] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6107] <... bpf resumed>) = 4 [pid 6107] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6106] <... bpf resumed>) = 4 [pid 6104] +++ exited with 0 +++ [pid 6103] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 6106] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6103, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6109 attached ./strace-static-x86_64: Process 6108 attached [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6108 ./strace-static-x86_64: Process 6110 attached [pid 6109] set_robust_list(0x55556540f660, 24 [pid 6108] set_robust_list(0x55556540f660, 24 [pid 6107] <... bpf resumed>) = 5 [pid 6106] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6109 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6110 [pid 6110] set_robust_list(0x55556540f660, 24 [pid 6109] <... set_robust_list resumed>) = 0 [pid 6108] <... set_robust_list resumed>) = 0 [pid 6110] <... set_robust_list resumed>) = 0 [pid 6109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6107] exit_group(0 [pid 6106] exit_group(0 [pid 6110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6109] <... prctl resumed>) = 0 [pid 6108] <... prctl resumed>) = 0 [pid 6107] <... exit_group resumed>) = ? [pid 6106] <... exit_group resumed>) = ? [pid 6110] <... prctl resumed>) = 0 [pid 6109] setpgid(0, 0 [pid 6108] setpgid(0, 0 [pid 6109] <... setpgid resumed>) = 0 [pid 6108] <... setpgid resumed>) = 0 [pid 6109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6109] <... openat resumed>) = 3 [pid 6110] setpgid(0, 0 [pid 6108] <... openat resumed>) = 3 [pid 6107] +++ exited with 0 +++ [pid 6106] +++ exited with 0 +++ [pid 6110] <... setpgid resumed>) = 0 [pid 6109] write(3, "1000", 4 [pid 6108] write(3, "1000", 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6106, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6109] <... write resumed>) = 4 [pid 6108] <... write resumed>) = 4 [pid 6110] <... openat resumed>) = 3 [pid 6109] close(3 [pid 6108] close(3 [pid 6110] write(3, "1000", 4 [pid 6109] <... close resumed>) = 0 [pid 6108] <... close resumed>) = 0 [pid 6110] <... write resumed>) = 4 executing program executing program [pid 6109] write(1, "executing program\n", 18 [pid 6108] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6110] close(3 [pid 6109] <... write resumed>) = 18 [pid 6108] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6111 attached [pid 6110] <... close resumed>) = 0 [pid 6109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6112 attached [pid 6110] write(1, "executing program\n", 18 [pid 6109] <... bpf resumed>) = 3 [pid 6108] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6111 executing program [pid 6111] set_robust_list(0x55556540f660, 24 [pid 6112] set_robust_list(0x55556540f660, 24 [pid 6111] <... set_robust_list resumed>) = 0 [pid 6110] <... write resumed>) = 18 [pid 6112] <... set_robust_list resumed>) = 0 [pid 6111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6112 [pid 6112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6111] <... prctl resumed>) = 0 [pid 6109] <... bpf resumed>) = 4 [pid 6108] <... bpf resumed>) = 4 [pid 6108] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6112] <... prctl resumed>) = 0 [pid 6111] setpgid(0, 0 [pid 6108] <... bpf resumed>) = 5 [pid 6110] <... bpf resumed>) = 3 [pid 6109] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6112] setpgid(0, 0 [pid 6111] <... setpgid resumed>) = 0 [pid 6110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6112] <... setpgid resumed>) = 0 [pid 6111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6109] <... bpf resumed>) = 5 [pid 6108] exit_group(0 [pid 6109] exit_group(0 [pid 6108] <... exit_group resumed>) = ? [pid 6112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6111] <... openat resumed>) = 3 [pid 6110] <... bpf resumed>) = 4 [pid 6109] <... exit_group resumed>) = ? [pid 6112] <... openat resumed>) = 3 [pid 6111] write(3, "1000", 4 [pid 6110] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6111] <... write resumed>) = 4 [pid 6111] close(3executing program ) = 0 [pid 6111] write(1, "executing program\n", 18 [pid 6112] write(3, "1000", 4 [pid 6111] <... write resumed>) = 18 [pid 6112] <... write resumed>) = 4 [pid 6111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6112] close(3executing program ) = 0 [pid 6111] <... bpf resumed>) = 3 [pid 6112] write(1, "executing program\n", 18 [pid 6111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6112] <... write resumed>) = 18 [pid 6112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6111] <... bpf resumed>) = 4 [pid 6112] <... bpf resumed>) = 3 [pid 6111] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6112] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6109] +++ exited with 0 +++ [pid 6108] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6113 attached , child_tidptr=0x55556540f650) = 6113 [pid 6113] set_robust_list(0x55556540f660, 24 [pid 6112] <... bpf resumed>) = 5 [pid 6111] <... bpf resumed>) = 5 [pid 6110] <... bpf resumed>) = 5 [pid 6112] exit_group(0 [pid 6110] exit_group(0 [pid 6113] <... set_robust_list resumed>) = 0 [pid 6112] <... exit_group resumed>) = ? [pid 6111] exit_group(0 [pid 6110] <... exit_group resumed>) = ? [pid 6113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6111] <... exit_group resumed>) = ? [pid 6113] <... prctl resumed>) = 0 [pid 6110] +++ exited with 0 +++ [pid 6113] setpgid(0, 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6113] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6114 attached [pid 6113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6114] set_robust_list(0x55556540f660, 24 [pid 6113] <... openat resumed>) = 3 [pid 6114] <... set_robust_list resumed>) = 0 [pid 6113] write(3, "1000", 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6114 [pid 6114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6113] <... write resumed>) = 4 [pid 6114] <... prctl resumed>) = 0 [pid 6113] close(3 [pid 6114] setpgid(0, 0 [pid 6113] <... close resumed>) = 0 executing program [pid 6114] <... setpgid resumed>) = 0 [pid 6113] write(1, "executing program\n", 18) = 18 [pid 6113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6113] <... bpf resumed>) = 3 [pid 6114] <... openat resumed>) = 3 [pid 6114] write(3, "1000", 4 [pid 6113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6114] <... write resumed>) = 4 [pid 6114] close(3 [pid 6113] <... bpf resumed>) = 4 [pid 6112] +++ exited with 0 +++ [pid 6111] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6114] <... close resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6113] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6114] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6111, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program ./strace-static-x86_64: Process 6115 attached [pid 6115] set_robust_list(0x55556540f660, 24) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6114] <... write resumed>) = 18 [pid 6115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6115 [pid 6115] <... prctl resumed>) = 0 [pid 6115] setpgid(0, 0 [pid 6114] <... bpf resumed>) = 3 [pid 6115] <... setpgid resumed>) = 0 [pid 6115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6115] <... openat resumed>) = 3 [pid 6114] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6115] write(3, "1000", 4) = 4 [pid 6114] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6115] close(3) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6116 attached ./strace-static-x86_64: Process 6117 attached executing program [pid 6115] write(1, "executing program\n", 18 [pid 6113] <... bpf resumed>) = 5 [pid 6116] set_robust_list(0x55556540f660, 24 [pid 6117] set_robust_list(0x55556540f660, 24 [pid 6115] <... write resumed>) = 18 [pid 6114] <... bpf resumed>) = 5 [pid 6113] exit_group(0 [pid 6116] <... set_robust_list resumed>) = 0 [pid 6117] <... set_robust_list resumed>) = 0 [pid 6115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6116 [pid 6116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6115] <... bpf resumed>) = 3 [pid 6114] exit_group(0 [pid 6113] <... exit_group resumed>) = ? [pid 6116] setpgid(0, 0 [pid 6117] <... prctl resumed>) = 0 [pid 6115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6114] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6117 [pid 6116] <... setpgid resumed>) = 0 [pid 6117] setpgid(0, 0 [pid 6115] <... bpf resumed>) = 4 [pid 6116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6117] <... setpgid resumed>) = 0 [pid 6117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6116] <... openat resumed>) = 3 [pid 6117] <... openat resumed>) = 3 [pid 6115] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6116] write(3, "1000", 4 [pid 6117] write(3, "1000", 4 [pid 6116] <... write resumed>) = 4 [pid 6117] <... write resumed>) = 4 [pid 6116] close(3 [pid 6117] close(3 [pid 6116] <... close resumed>) = 0 [pid 6117] <... close resumed>) = 0 executing program executing program [pid 6116] write(1, "executing program\n", 18 [pid 6117] write(1, "executing program\n", 18 [pid 6116] <... write resumed>) = 18 [pid 6117] <... write resumed>) = 18 [pid 6116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6116] <... bpf resumed>) = 3 [pid 6117] <... bpf resumed>) = 3 [pid 6116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6113] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6117] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6116] <... bpf resumed>) = 4 [pid 6114] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 6116] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6114, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6117] <... bpf resumed>) = 5 [pid 6115] <... bpf resumed>) = 5 [pid 6116] <... bpf resumed>) = 5 [pid 6117] exit_group(0 [pid 6115] exit_group(0) = ? [pid 6116] exit_group(0 [pid 6117] <... exit_group resumed>) = ? [pid 6115] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6116] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6115, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6118 attached [pid 5844] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6119 attached [pid 6119] set_robust_list(0x55556540f660, 24 [pid 6118] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6119 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6118 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6118] <... set_robust_list resumed>) = 0 [pid 6119] <... set_robust_list resumed>) = 0 [pid 6118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6118] <... prctl resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6118] setpgid(0, 0./strace-static-x86_64: Process 6120 attached ) = 0 [pid 6119] <... prctl resumed>) = 0 [pid 6119] setpgid(0, 0 [pid 6118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6120 [pid 6119] <... setpgid resumed>) = 0 [pid 6119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6118] <... openat resumed>) = 3 [pid 6117] +++ exited with 0 +++ [pid 6119] <... openat resumed>) = 3 [pid 6116] +++ exited with 0 +++ [pid 6118] write(3, "1000", 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6117, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6120] set_robust_list(0x55556540f660, 24 [pid 6119] write(3, "1000", 4 [pid 6118] <... write resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6116, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6120] <... set_robust_list resumed>) = 0 [pid 6119] <... write resumed>) = 4 [pid 6118] close(3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6119] close(3 [pid 6120] <... prctl resumed>) = 0 [pid 6118] <... close resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 executing program [pid 6120] setpgid(0, 0 [pid 6119] <... close resumed>) = 0 [pid 6119] write(1, "executing program\n", 18 [pid 6120] <... setpgid resumed>) = 0 [pid 6119] <... write resumed>) = 18 [pid 6118] write(1, "executing program\n", 18 executing program [pid 6119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6118] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6121 attached [pid 6120] <... openat resumed>) = 3 [pid 6119] <... bpf resumed>) = 3 [pid 6118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6121 ./strace-static-x86_64: Process 6122 attached [pid 6121] set_robust_list(0x55556540f660, 24 [pid 6120] write(3, "1000", 4 [pid 6119] <... bpf resumed>) = 4 [pid 6118] <... bpf resumed>) = 3 [pid 6122] set_robust_list(0x55556540f660, 24 [pid 6121] <... set_robust_list resumed>) = 0 [pid 6120] <... write resumed>) = 4 [pid 6119] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6120] close(3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6122 [pid 6122] <... set_robust_list resumed>) = 0 [pid 6120] <... close resumed>) = 0 [pid 6119] <... bpf resumed>) = 5 [pid 6118] <... bpf resumed>) = 4 [pid 6122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6121] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 6120] write(1, "executing program\n", 18 [pid 6118] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6122] <... prctl resumed>) = 0 [pid 6120] <... write resumed>) = 18 [pid 6119] exit_group(0 [pid 6122] setpgid(0, 0 [pid 6121] <... prctl resumed>) = 0 [pid 6120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6119] <... exit_group resumed>) = ? [pid 6118] <... bpf resumed>) = 5 [pid 6122] <... setpgid resumed>) = 0 [pid 6121] setpgid(0, 0 [pid 6120] <... bpf resumed>) = 3 [pid 6118] exit_group(0 [pid 6122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6121] <... setpgid resumed>) = 0 [pid 6120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6118] <... exit_group resumed>) = ? [pid 6122] <... openat resumed>) = 3 [pid 6121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6122] write(3, "1000", 4) = 4 [pid 6122] close(3 [pid 6121] <... openat resumed>) = 3 [pid 6120] <... bpf resumed>) = 4 [pid 6121] write(3, "1000", 4 [pid 6120] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6122] <... close resumed>) = 0 [pid 6121] <... write resumed>) = 4 executing program [pid 6122] write(1, "executing program\n", 18 [pid 6121] close(3 [pid 6122] <... write resumed>) = 18 [pid 6121] <... close resumed>) = 0 [pid 6122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6121] write(1, "executing program\n", 18executing program [pid 6122] <... bpf resumed>) = 3 [pid 6121] <... write resumed>) = 18 [pid 6122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6119] +++ exited with 0 +++ [pid 6118] +++ exited with 0 +++ [pid 6122] <... bpf resumed>) = 4 [pid 6121] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6122] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6121] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6121] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6123 attached [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6123 ./strace-static-x86_64: Process 6124 attached [pid 6123] set_robust_list(0x55556540f660, 24 [pid 6124] set_robust_list(0x55556540f660, 24 [pid 6123] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6124 [pid 6124] <... set_robust_list resumed>) = 0 [pid 6123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6123] <... prctl resumed>) = 0 [pid 6124] <... prctl resumed>) = 0 [pid 6123] setpgid(0, 0 [pid 6124] setpgid(0, 0) = 0 [pid 6123] <... setpgid resumed>) = 0 [pid 6122] <... bpf resumed>) = 5 [pid 6121] <... bpf resumed>) = 5 [pid 6120] <... bpf resumed>) = 5 [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6122] exit_group(0 [pid 6121] exit_group(0 [pid 6124] <... openat resumed>) = 3 [pid 6120] exit_group(0 [pid 6124] write(3, "1000", 4executing program [pid 6121] <... exit_group resumed>) = ? [pid 6120] <... exit_group resumed>) = ? [pid 6124] <... write resumed>) = 4 [pid 6122] <... exit_group resumed>) = ? [pid 6124] close(3) = 0 [pid 6124] write(1, "executing program\n", 18) = 18 [pid 6124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6123] <... openat resumed>) = 3 [pid 6124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6124] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6123] write(3, "1000", 4 [pid 6120] +++ exited with 0 +++ [pid 6123] <... write resumed>) = 4 [pid 6123] close(3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6120, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 6123] <... close resumed>) = 0 [pid 6123] write(1, "executing program\n", 18) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6125 attached [pid 6123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6125 [pid 6125] set_robust_list(0x55556540f660, 24 [pid 6123] <... bpf resumed>) = 3 [pid 6122] +++ exited with 0 +++ [pid 6121] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6121, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6125] <... set_robust_list resumed>) = 0 [pid 6123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6126 attached [pid 6125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6123] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6125] <... prctl resumed>) = 0 [pid 6125] setpgid(0, 0./strace-static-x86_64: Process 6127 attached [pid 6126] set_robust_list(0x55556540f660, 24 [pid 6125] <... setpgid resumed>) = 0 [pid 6124] <... bpf resumed>) = 5 [pid 6123] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6126 [pid 6127] set_robust_list(0x55556540f660, 24 [pid 6126] <... set_robust_list resumed>) = 0 [pid 6125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6124] exit_group(0 [pid 6123] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6127 [pid 6127] <... set_robust_list resumed>) = 0 [pid 6126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6125] <... openat resumed>) = 3 [pid 6124] <... exit_group resumed>) = ? [pid 6126] <... prctl resumed>) = 0 [pid 6127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6126] setpgid(0, 0 [pid 6125] write(3, "1000", 4 [pid 6123] exit_group(0 [pid 6127] <... prctl resumed>) = 0 [pid 6125] <... write resumed>) = 4 [pid 6123] <... exit_group resumed>) = ? [pid 6127] setpgid(0, 0 [pid 6126] <... setpgid resumed>) = 0 [pid 6125] close(3) = 0 [pid 6127] <... setpgid resumed>) = 0 [pid 6125] write(1, "executing program\n", 18 executing program [pid 6126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6126] <... openat resumed>) = 3 [pid 6125] <... write resumed>) = 18 [pid 6126] write(3, "1000", 4 [pid 6125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6127] write(3, "1000", 4 [pid 6126] <... write resumed>) = 4 [pid 6125] <... bpf resumed>) = 3 [pid 6127] <... write resumed>) = 4 [pid 6126] close(3 [pid 6125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6127] close(3 [pid 6126] <... close resumed>) = 0 [pid 6125] <... bpf resumed>) = 4 [pid 6124] +++ exited with 0 +++ [pid 6127] <... close resumed>) = 0 [pid 6126] write(1, "executing program\n", 18 [pid 6127] write(1, "executing program\n", 18executing program ) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6126] <... write resumed>) = 18 [pid 6127] <... bpf resumed>) = 3 [pid 6126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6125] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6126] <... bpf resumed>) = 3 [pid 6123] +++ exited with 0 +++ [pid 6127] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6123, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6128 attached [pid 6127] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6128 [pid 6128] set_robust_list(0x55556540f660, 24 [pid 6126] <... bpf resumed>) = 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6128] <... set_robust_list resumed>) = 0 [pid 6128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6126] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6128] <... prctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6128] setpgid(0, 0./strace-static-x86_64: Process 6129 attached [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6129 [pid 6129] set_robust_list(0x55556540f660, 24 [pid 6128] <... setpgid resumed>) = 0 [pid 6127] <... bpf resumed>) = 5 [pid 6126] <... bpf resumed>) = 5 [pid 6125] <... bpf resumed>) = 5 [pid 6129] <... set_robust_list resumed>) = 0 [pid 6127] exit_group(0 [pid 6126] exit_group(0 [pid 6125] exit_group(0 [pid 6128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6127] <... exit_group resumed>) = ? [pid 6125] <... exit_group resumed>) = ? [pid 6129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6126] <... exit_group resumed>) = ? [pid 6128] <... openat resumed>) = 3 [pid 6129] <... prctl resumed>) = 0 [pid 6128] write(3, "1000", 4 [pid 6126] +++ exited with 0 +++ [pid 6129] setpgid(0, 0 [pid 6128] <... write resumed>) = 4 [pid 6128] close(3 [pid 6129] <... setpgid resumed>) = 0 [pid 6128] <... close resumed>) = 0 [pid 6128] write(1, "executing program\n", 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6126, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 6129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6128] <... write resumed>) = 18 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6129] <... openat resumed>) = 3 [pid 6128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6129] write(3, "1000", 4 [pid 6128] <... bpf resumed>) = 3 [pid 6129] <... write resumed>) = 4 [pid 6128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6129] close(3 [pid 6128] <... bpf resumed>) = 4 [pid 6129] <... close resumed>) = 0 [pid 6128] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6129] write(1, "executing program\n", 18 [pid 6125] +++ exited with 0 +++ [pid 5842] <... restart_syscall resumed>) = 0 [pid 6129] <... write resumed>) = 18 [pid 6127] +++ exited with 0 +++ [pid 6129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6127, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6125, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6130 attached [pid 6129] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6130 ./strace-static-x86_64: Process 6132 attached ./strace-static-x86_64: Process 6131 attached [pid 6130] set_robust_list(0x55556540f660, 24 [pid 6129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6132] set_robust_list(0x55556540f660, 24 [pid 6131] set_robust_list(0x55556540f660, 24 [pid 6130] <... set_robust_list resumed>) = 0 [pid 6129] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6132 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6131 [pid 6132] <... set_robust_list resumed>) = 0 [pid 6131] <... set_robust_list resumed>) = 0 [pid 6130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6130] <... prctl resumed>) = 0 [pid 6132] setpgid(0, 0 [pid 6130] setpgid(0, 0) = 0 [pid 6132] <... setpgid resumed>) = 0 [pid 6131] <... prctl resumed>) = 0 [pid 6130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6129] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6131] setpgid(0, 0 [pid 6130] <... openat resumed>) = 3 [pid 6130] write(3, "1000", 4 [pid 6132] <... openat resumed>) = 3 [pid 6131] <... setpgid resumed>) = 0 [pid 6129] <... bpf resumed>) = 5 [pid 6128] <... bpf resumed>) = 5 [pid 6130] <... write resumed>) = 4 [pid 6128] exit_group(0 [pid 6131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6132] write(3, "1000", 4 [pid 6130] close(3 [pid 6129] exit_group(0 [pid 6128] <... exit_group resumed>) = ? [pid 6132] <... write resumed>) = 4 [pid 6131] <... openat resumed>) = 3 [pid 6130] <... close resumed>) = 0 [pid 6129] <... exit_group resumed>) = ? [pid 6132] close(3executing program [pid 6130] write(1, "executing program\n", 18 [pid 6132] <... close resumed>) = 0 [pid 6131] write(3, "1000", 4 [pid 6130] <... write resumed>) = 18 [pid 6132] write(1, "executing program\n", 18executing program [pid 6130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6132] <... write resumed>) = 18 [pid 6131] <... write resumed>) = 4 [pid 6132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6131] close(3 [pid 6130] <... bpf resumed>) = 3 [pid 6130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6132] <... bpf resumed>) = 3 [pid 6131] <... close resumed>) = 0 [pid 6130] <... bpf resumed>) = 4 [pid 6131] write(1, "executing program\n", 18 [pid 6130] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6131] <... write resumed>) = 18 [pid 6131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6131] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6128] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6132] <... bpf resumed>) = 4 [pid 6131] exit_group(0 [pid 6132] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6131] <... exit_group resumed>) = ? [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6133 attached [pid 6133] set_robust_list(0x55556540f660, 24) = 0 [pid 6133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6133 [pid 6133] <... prctl resumed>) = 0 [pid 6133] setpgid(0, 0) = 0 [pid 6133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6133] write(3, "1000", 4 [pid 6132] <... bpf resumed>) = 5 [pid 6131] +++ exited with 0 +++ [pid 6130] <... bpf resumed>) = 5 [pid 6129] +++ exited with 0 +++ [pid 6133] <... write resumed>) = 4 [pid 6130] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6129, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6133] close(3 [pid 6132] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6131, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6133] <... close resumed>) = 0 [pid 6130] <... exit_group resumed>) = ? executing program [pid 6133] write(1, "executing program\n", 18 [pid 6132] <... exit_group resumed>) = ? [pid 6133] <... write resumed>) = 18 [pid 6133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6132] +++ exited with 0 +++ [pid 6130] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6133] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6134 attached [pid 6133] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6134] set_robust_list(0x55556540f660, 24) = 0 [pid 6134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6134] <... prctl resumed>) = 0 [pid 6134] setpgid(0, 0) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6137 attached ./strace-static-x86_64: Process 6136 attached ./strace-static-x86_64: Process 6135 attached [pid 6134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6137] set_robust_list(0x55556540f660, 24 [pid 6135] set_robust_list(0x55556540f660, 24 [pid 6133] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6137 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6134 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6135 [pid 6137] <... set_robust_list resumed>) = 0 [pid 6136] set_robust_list(0x55556540f660, 24 [pid 6135] <... set_robust_list resumed>) = 0 [pid 6134] <... openat resumed>) = 3 [pid 6133] exit_group(0 [pid 6137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6136] <... set_robust_list resumed>) = 0 [pid 6133] <... exit_group resumed>) = ? [pid 6137] <... prctl resumed>) = 0 [pid 6136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6134] write(3, "1000", 4 [pid 6133] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6136 [pid 6137] setpgid(0, 0 [pid 6135] <... prctl resumed>) = 0 [pid 6134] <... write resumed>) = 4 [pid 6137] <... setpgid resumed>) = 0 [pid 6135] setpgid(0, 0 [pid 6136] <... prctl resumed>) = 0 [pid 6134] close(3 [pid 6137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6136] setpgid(0, 0 [pid 6135] <... setpgid resumed>) = 0 [pid 6134] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6133, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6136] <... setpgid resumed>) = 0 [pid 6134] write(1, "executing program\n", 18 [pid 6136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6137] <... openat resumed>) = 3 [pid 6134] <... write resumed>) = 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6137] write(3, "1000", 4) = 4 [pid 6136] <... openat resumed>) = 3 [pid 6135] <... openat resumed>) = 3 [pid 6134] <... bpf resumed>) = 3 [pid 6136] write(3, "1000", 4 [pid 6134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6137] close(3 [pid 6136] <... write resumed>) = 4 [pid 6135] write(3, "1000", 4 [pid 6137] <... close resumed>) = 0 [pid 6136] close(3 [pid 6135] <... write resumed>) = 4 [pid 6134] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6137] write(1, "executing program\n", 18 [pid 6136] <... close resumed>) = 0 [pid 6135] close(3 [pid 6137] <... write resumed>) = 18 executing program [pid 6136] write(1, "executing program\n", 18./strace-static-x86_64: Process 6138 attached [pid 6137] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6136] <... write resumed>) = 18 [pid 6135] <... close resumed>) = 0 [pid 6134] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6138] set_robust_list(0x55556540f660, 24 [pid 6137] <... bpf resumed>) = 3 [pid 6136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6135] write(1, "executing program\n", 18 [pid 6138] <... set_robust_list resumed>) = 0 [pid 6137] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6136] <... bpf resumed>) = 3 [pid 6135] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6138 [pid 6138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6138] <... prctl resumed>) = 0 [pid 6137] <... bpf resumed>) = 4 [pid 6136] <... bpf resumed>) = 4 [pid 6135] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6138] setpgid(0, 0executing program [pid 6137] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6138] <... setpgid resumed>) = 0 [pid 6136] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6138] write(3, "1000", 4) = 4 [pid 6138] close(3) = 0 [pid 6138] write(1, "executing program\n", 18) = 18 [pid 6138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6135] <... bpf resumed>) = 3 [pid 6138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6137] <... bpf resumed>) = 5 [pid 6136] <... bpf resumed>) = 5 [pid 6135] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6138] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6137] exit_group(0 [pid 6136] exit_group(0 [pid 6134] <... bpf resumed>) = 5 [pid 6138] <... bpf resumed>) = 5 [pid 6137] <... exit_group resumed>) = ? [pid 6136] <... exit_group resumed>) = ? [pid 6134] exit_group(0 [pid 6135] <... bpf resumed>) = 4 [pid 6138] exit_group(0 [pid 6137] +++ exited with 0 +++ [pid 6136] +++ exited with 0 +++ [pid 6135] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6134] <... exit_group resumed>) = ? [pid 6138] <... exit_group resumed>) = ? [pid 6135] <... bpf resumed>) = 5 [pid 6134] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6136, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6135] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6134, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6135] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6139 attached [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6139] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6139 ./strace-static-x86_64: Process 6140 attached [pid 6139] <... set_robust_list resumed>) = 0 [pid 6138] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 6140] set_robust_list(0x55556540f660, 24 [pid 6139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6135] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6140 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6138, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6140] <... set_robust_list resumed>) = 0 [pid 6139] <... prctl resumed>) = 0 [pid 6140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6139] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6141 attached [pid 6139] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6135, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6142 attached [pid 6141] set_robust_list(0x55556540f660, 24 [pid 6140] <... prctl resumed>) = 0 [pid 6139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6140] setpgid(0, 0 [pid 6142] set_robust_list(0x55556540f660, 24 [pid 6141] <... set_robust_list resumed>) = 0 [pid 6140] <... setpgid resumed>) = 0 [pid 6142] <... set_robust_list resumed>) = 0 [pid 6141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6139] <... openat resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6142 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6141 [pid 6142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6141] <... prctl resumed>) = 0 [pid 6140] <... openat resumed>) = 3 [pid 6139] write(3, "1000", 4) = 4 [pid 6141] setpgid(0, 0 [pid 6140] write(3, "1000", 4 [pid 6142] <... prctl resumed>) = 0 [pid 6139] close(3 [pid 6140] <... write resumed>) = 4 [pid 6139] <... close resumed>) = 0 [pid 6141] <... setpgid resumed>) = 0 [pid 6142] setpgid(0, 0 [pid 6140] close(3 [pid 6139] write(1, "executing program\n", 18 [pid 6140] <... close resumed>) = 0 [pid 6141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program executing program [pid 6140] write(1, "executing program\n", 18) = 18 [pid 6142] <... setpgid resumed>) = 0 [pid 6140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6139] <... write resumed>) = 18 [pid 6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6141] <... openat resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6139] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6142] <... openat resumed>) = 3 [pid 6141] write(3, "1000", 4) = 4 [pid 6142] write(3, "1000", 4 [pid 6141] close(3 [pid 6139] <... bpf resumed>) = 3 [pid 6142] <... write resumed>) = 4 [pid 6141] <... close resumed>) = 0 executing program [pid 6139] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6142] close(3 [pid 6141] write(1, "executing program\n", 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6140] <... bpf resumed>) = 3 [pid 6140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6143 attached ) = 4 [pid 6143] set_robust_list(0x55556540f660, 24 [pid 6142] <... close resumed>) = 0 [pid 6141] <... write resumed>) = 18 [pid 6139] <... bpf resumed>) = 4 [pid 6143] <... set_robust_list resumed>) = 0 [pid 6140] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 executing program [pid 6143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6142] write(1, "executing program\n", 18 [pid 6141] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6140] <... bpf resumed>) = 5 [pid 6139] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6143 [pid 6143] <... prctl resumed>) = 0 [pid 6142] <... write resumed>) = 18 [pid 6143] setpgid(0, 0) = 0 [pid 6142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6139] <... bpf resumed>) = 5 [pid 6140] exit_group(0 [pid 6143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6140] <... exit_group resumed>) = ? [pid 6143] <... openat resumed>) = 3 [pid 6142] <... bpf resumed>) = 3 [pid 6141] <... bpf resumed>) = 3 [pid 6139] exit_group(0 [pid 6143] write(3, "1000", 4 [pid 6139] <... exit_group resumed>) = ? [pid 6143] <... write resumed>) = 4 [pid 6141] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6143] close(3 [pid 6142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6143] <... close resumed>) = 0 [pid 6143] write(1, "executing program\n", 18 [pid 6142] <... bpf resumed>) = 4 [pid 6143] <... write resumed>) = 18 [pid 6143] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6142] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6143] <... bpf resumed>) = 3 [pid 6143] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6141] <... bpf resumed>) = 4 [pid 6141] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6143] <... bpf resumed>) = 4 [pid 6143] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6140] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6140, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6139] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6139, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6144 attached [pid 6143] <... bpf resumed>) = 5 [pid 6142] <... bpf resumed>) = 5 [pid 6141] <... bpf resumed>) = 5 [pid 6143] exit_group(0./strace-static-x86_64: Process 6145 attached [pid 6144] set_robust_list(0x55556540f660, 24 [pid 6143] <... exit_group resumed>) = ? [pid 6142] exit_group(0 [pid 6141] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6144 [pid 6144] <... set_robust_list resumed>) = 0 [pid 6142] <... exit_group resumed>) = ? [pid 6141] <... exit_group resumed>) = ? [pid 6144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6142] +++ exited with 0 +++ [pid 6144] <... prctl resumed>) = 0 [pid 6144] setpgid(0, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6142, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6144] <... setpgid resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6145 [pid 6145] set_robust_list(0x55556540f660, 24 [pid 6144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6145] <... set_robust_list resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6146 attached [pid 6145] setpgid(0, 0 [pid 6144] write(3, "1000", 4 [pid 6145] <... setpgid resumed>) = 0 [pid 6146] set_robust_list(0x55556540f660, 24 [pid 6144] <... write resumed>) = 4 [pid 6144] close(3) = 0 executing program [pid 6145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6146] <... set_robust_list resumed>) = 0 [pid 6144] write(1, "executing program\n", 18 [pid 6145] <... openat resumed>) = 3 [pid 6144] <... write resumed>) = 18 [pid 6146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6145] write(3, "1000", 4 [pid 6144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6146] <... prctl resumed>) = 0 [pid 6145] <... write resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6146 [pid 6146] setpgid(0, 0 [pid 6145] close(3 [pid 6146] <... setpgid resumed>) = 0 [pid 6145] <... close resumed>) = 0 executing program [pid 6146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6145] write(1, "executing program\n", 18 [pid 6144] <... bpf resumed>) = 3 [pid 6145] <... write resumed>) = 18 [pid 6144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6145] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6146] <... openat resumed>) = 3 [pid 6144] <... bpf resumed>) = 4 [pid 6144] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6146] write(3, "1000", 4 [pid 6145] <... bpf resumed>) = 3 [pid 6146] <... write resumed>) = 4 [pid 6146] close(3 [pid 6145] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6146] <... close resumed>) = 0 [pid 6146] write(1, "executing program\n", 18) = 18 [pid 6146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6143] +++ exited with 0 +++ [pid 6141] +++ exited with 0 +++ [pid 6145] <... bpf resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6141, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6143, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6145] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6146] <... bpf resumed>) = 4 [pid 6146] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6147 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6147] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6148 attached ) = 0 [pid 6148] set_robust_list(0x55556540f660, 24 [pid 6147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6148] <... set_robust_list resumed>) = 0 [pid 6147] <... prctl resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6148 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6147 [pid 6148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6147] setpgid(0, 0 [pid 6148] <... prctl resumed>) = 0 [pid 6147] <... setpgid resumed>) = 0 [pid 6144] <... bpf resumed>) = 5 [pid 6148] setpgid(0, 0) = 0 [pid 6147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6146] <... bpf resumed>) = 5 [pid 6145] <... bpf resumed>) = 5 [pid 6144] exit_group(0 [pid 6148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6147] <... openat resumed>) = 3 [pid 6146] exit_group(0 [pid 6144] <... exit_group resumed>) = ? [pid 6148] <... openat resumed>) = 3 [pid 6147] write(3, "1000", 4 [pid 6146] <... exit_group resumed>) = ? [pid 6145] exit_group(0 [pid 6148] write(3, "1000", 4 [pid 6147] <... write resumed>) = 4 [pid 6144] +++ exited with 0 +++ [pid 6148] <... write resumed>) = 4 [pid 6147] close(3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6144, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6148] close(3 [pid 6147] <... close resumed>) = 0 [pid 6145] <... exit_group resumed>) = ? [pid 6148] <... close resumed>) = 0 [pid 6147] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6148] write(1, "executing program\n", 18executing program [pid 6147] <... write resumed>) = 18 [pid 6148] <... write resumed>) = 18 [pid 6147] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6149 attached ) = 3 [pid 6149] set_robust_list(0x55556540f660, 24 [pid 6148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6147] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6149 [pid 6149] <... set_robust_list resumed>) = 0 [pid 6149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6148] <... bpf resumed>) = 4 [pid 6147] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6149] setpgid(0, 0 [pid 6148] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6149] <... setpgid resumed>) = 0 [pid 6147] <... bpf resumed>) = 4 [pid 6147] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6145] +++ exited with 0 +++ [pid 6149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6147] <... bpf resumed>) = 5 [pid 6149] <... openat resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6145, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6149] write(3, "1000", 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6150 attached [pid 6149] <... write resumed>) = 4 [pid 6147] exit_group(0 [pid 6150] set_robust_list(0x55556540f660, 24 [pid 6149] close(3 executing program [pid 6150] <... set_robust_list resumed>) = 0 [pid 6147] <... exit_group resumed>) = ? [pid 6150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6149] <... close resumed>) = 0 [pid 6149] write(1, "executing program\n", 18) = 18 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6150 [pid 6149] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6150] <... prctl resumed>) = 0 [pid 6150] setpgid(0, 0 [pid 6149] <... bpf resumed>) = 3 [pid 6149] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6149] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6150] <... setpgid resumed>) = 0 [pid 6150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6150] write(3, "1000", 4) = 4 [pid 6150] close(3) = 0 [pid 6150] write(1, "executing program\n", 18executing program ) = 18 [pid 6150] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6150] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6150] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6146] +++ exited with 0 +++ [pid 6148] <... bpf resumed>) = 5 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6146, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6150] <... bpf resumed>) = 5 [pid 6149] <... bpf resumed>) = 5 [pid 6147] +++ exited with 0 +++ [pid 6148] exit_group(0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6150] exit_group(0 [pid 6149] exit_group(0 [pid 6148] <... exit_group resumed>) = ? [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6147, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6149] <... exit_group resumed>) = ? [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6150] <... exit_group resumed>) = ? [pid 6148] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6148, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6151 attached [pid 6151] set_robust_list(0x55556540f660, 24 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6151] <... set_robust_list resumed>) = 0 [pid 6149] +++ exited with 0 +++ [pid 6151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6149, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6151 [pid 5849] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6152 attached [pid 6151] <... prctl resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6152 [pid 6151] setpgid(0, 0) = 0 [pid 6151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6152] set_robust_list(0x55556540f660, 24 [pid 6151] <... openat resumed>) = 3 [pid 6150] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6152] <... set_robust_list resumed>) = 0 [pid 6152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6151] write(3, "1000", 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6150, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6151] <... write resumed>) = 4 [pid 6151] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6152] <... prctl resumed>) = 0 [pid 6151] <... close resumed>) = 0 ./strace-static-x86_64: Process 6153 attached [pid 6152] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6152] <... setpgid resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6153] set_robust_list(0x55556540f660, 24 [pid 6152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6151] write(1, "executing program\n", 18./strace-static-x86_64: Process 6154 attached ) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6153 [pid 6151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6155 attached [pid 6154] set_robust_list(0x55556540f660, 24 [pid 6153] <... set_robust_list resumed>) = 0 [pid 6152] <... openat resumed>) = 3 [pid 6151] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6154 [pid 6153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6152] write(3, "1000", 4) = 4 [pid 6152] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6155 [pid 6153] <... prctl resumed>) = 0 [pid 6152] <... close resumed>) = 0 executing program [pid 6152] write(1, "executing program\n", 18) = 18 [pid 6155] set_robust_list(0x55556540f660, 24 [pid 6154] <... set_robust_list resumed>) = 0 [pid 6152] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6153] setpgid(0, 0 [pid 6152] <... bpf resumed>) = 3 [pid 6151] <... bpf resumed>) = 4 [pid 6153] <... setpgid resumed>) = 0 [pid 6152] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6155] <... set_robust_list resumed>) = 0 [pid 6154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6152] <... bpf resumed>) = 4 [pid 6151] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6154] <... prctl resumed>) = 0 [pid 6151] <... bpf resumed>) = 5 [pid 6155] <... prctl resumed>) = 0 [pid 6154] setpgid(0, 0 [pid 6153] <... openat resumed>) = 3 [pid 6151] exit_group(0 [pid 6155] setpgid(0, 0 [pid 6154] <... setpgid resumed>) = 0 [pid 6151] <... exit_group resumed>) = ? [pid 6155] <... setpgid resumed>) = 0 [pid 6154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6153] write(3, "1000", 4 [pid 6152] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6153] <... write resumed>) = 4 [pid 6155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6154] <... openat resumed>) = 3 [pid 6153] close(3 [pid 6152] <... bpf resumed>) = 5 [pid 6155] <... openat resumed>) = 3 [pid 6154] write(3, "1000", 4 [pid 6153] <... close resumed>) = 0 [pid 6155] write(3, "1000", 4 [pid 6154] <... write resumed>) = 4 [pid 6152] exit_group(0 [pid 6151] +++ exited with 0 +++ [pid 6155] <... write resumed>) = 4 executing program [pid 6154] close(3 [pid 6153] write(1, "executing program\n", 18 [pid 6152] <... exit_group resumed>) = ? [pid 6155] close(3 [pid 6154] <... close resumed>) = 0 [pid 6153] <... write resumed>) = 18 [pid 6155] <... close resumed>) = 0 executing program [pid 6154] write(1, "executing program\n", 18 [pid 6152] +++ exited with 0 +++ [pid 6153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6151, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6155] write(1, "executing program\n", 18 [pid 6154] <... write resumed>) = 18 [pid 6154] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6153] <... bpf resumed>) = 3 [pid 6155] <... write resumed>) = 18 [pid 6154] <... bpf resumed>) = 3 [pid 6155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6154] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6155] <... bpf resumed>) = 3 [pid 6154] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6152, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6156 attached [pid 6154] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6153] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6157 attached [pid 6156] set_robust_list(0x55556540f660, 24 [pid 6153] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6156 [pid 6154] <... bpf resumed>) = 5 [pid 6157] set_robust_list(0x55556540f660, 24 [pid 6156] <... set_robust_list resumed>) = 0 [pid 6155] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6154] exit_group(0 [pid 6153] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6157 [pid 6157] <... set_robust_list resumed>) = 0 [pid 6156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6155] <... bpf resumed>) = 5 [pid 6154] <... exit_group resumed>) = ? [pid 6153] exit_group(0 [pid 6157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6156] <... prctl resumed>) = 0 [pid 6155] exit_group(0 [pid 6154] +++ exited with 0 +++ [pid 6153] <... exit_group resumed>) = ? [pid 6157] <... prctl resumed>) = 0 [pid 6156] setpgid(0, 0 [pid 6155] <... exit_group resumed>) = ? [pid 6157] setpgid(0, 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6154, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6157] <... setpgid resumed>) = 0 [pid 6157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6156] <... setpgid resumed>) = 0 [pid 6156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6156] write(3, "1000", 4 [pid 6157] <... openat resumed>) = 3 [pid 6156] <... write resumed>) = 4 [pid 6155] +++ exited with 0 +++ [pid 6153] +++ exited with 0 +++ [pid 6157] write(3, "1000", 4 [pid 6156] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6155, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6157] <... write resumed>) = 4 [pid 6156] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6153, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6157] close(3 [pid 6156] write(1, "executing program\n", 18executing program [pid 6157] <... close resumed>) = 0 [pid 6156] <... write resumed>) = 18 executing program [pid 6156] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6157] write(1, "executing program\n", 18 [pid 6156] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6158 attached [pid 6157] <... write resumed>) = 18 [pid 6156] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6160 attached ./strace-static-x86_64: Process 6159 attached [pid 6158] set_robust_list(0x55556540f660, 24 [pid 6157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6156] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6159 [pid 6160] set_robust_list(0x55556540f660, 24 [pid 6159] set_robust_list(0x55556540f660, 24 [pid 6158] <... set_robust_list resumed>) = 0 [pid 6157] <... bpf resumed>) = 3 [pid 6160] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6158 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6160 [pid 6158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6159] <... set_robust_list resumed>) = 0 [pid 6157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6158] <... prctl resumed>) = 0 [pid 6157] <... bpf resumed>) = 4 [pid 6156] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6158] setpgid(0, 0 [pid 6159] <... prctl resumed>) = 0 [pid 6159] setpgid(0, 0 [pid 6158] <... setpgid resumed>) = 0 [pid 6159] <... setpgid resumed>) = 0 [pid 6157] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6160] <... prctl resumed>) = 0 [pid 6159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6160] setpgid(0, 0) = 0 [pid 6159] <... openat resumed>) = 3 [pid 6158] <... openat resumed>) = 3 [pid 6159] write(3, "1000", 4) = 4 [pid 6158] write(3, "1000", 4 [pid 6156] <... bpf resumed>) = 5 [pid 6160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6158] <... write resumed>) = 4 [pid 6157] <... bpf resumed>) = 5 [pid 6159] close(3 [pid 6158] close(3 [pid 6157] exit_group(0 [pid 6159] <... close resumed>) = 0 [pid 6158] <... close resumed>) = 0 [pid 6156] exit_group(0executing program executing program [pid 6160] <... openat resumed>) = 3 [pid 6159] write(1, "executing program\n", 18 [pid 6158] write(1, "executing program\n", 18 [pid 6157] <... exit_group resumed>) = ? [pid 6160] write(3, "1000", 4 [pid 6159] <... write resumed>) = 18 [pid 6158] <... write resumed>) = 18 [pid 6156] <... exit_group resumed>) = ? [pid 6160] <... write resumed>) = 4 [pid 6159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6158] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6157] +++ exited with 0 +++ [pid 6156] +++ exited with 0 +++ [pid 6160] close(3 [pid 6159] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6157, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6156, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6160] <... close resumed>) = 0 [pid 6158] <... bpf resumed>) = 3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6160] write(1, "executing program\n", 18executing program [pid 6158] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6160] <... write resumed>) = 18 [pid 6159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6160] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6159] <... bpf resumed>) = 4 [pid 6158] <... bpf resumed>) = 4 [pid 6159] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6160] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6161 attached [pid 6159] <... bpf resumed>) = 5 [pid 6158] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6161] set_robust_list(0x55556540f660, 24 [pid 6160] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6159] exit_group(0 [pid 6158] <... bpf resumed>) = 5 [pid 6161] <... set_robust_list resumed>) = 0 [pid 6160] <... bpf resumed>) = 4 [pid 6159] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6161 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6160] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6158] exit_group(0) = ? [pid 6161] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6162 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6162 [pid 6162] set_robust_list(0x55556540f660, 24 [pid 6161] setpgid(0, 0) = 0 [pid 6162] <... set_robust_list resumed>) = 0 [pid 6161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6160] <... bpf resumed>) = 5 [pid 6159] +++ exited with 0 +++ [pid 6162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6162] setpgid(0, 0) = 0 [pid 6162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6162] write(3, "1000", 4 [pid 6161] <... openat resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6159, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6160] exit_group(0 [pid 6161] write(3, "1000", 4 [pid 6160] <... exit_group resumed>) = ? [pid 6161] <... write resumed>) = 4 [pid 6162] <... write resumed>) = 4 [pid 6160] +++ exited with 0 +++ [pid 6158] +++ exited with 0 +++ [pid 6162] close(3 [pid 6161] close(3 [pid 6162] <... close resumed>) = 0 [pid 6161] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6158, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program executing program [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6160, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6162] write(1, "executing program\n", 18 [pid 6161] write(1, "executing program\n", 18 [pid 6162] <... write resumed>) = 18 [pid 6161] <... write resumed>) = 18 [pid 6162] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6162] <... bpf resumed>) = 3 [pid 6161] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6164 attached ./strace-static-x86_64: Process 6163 attached [pid 6162] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6165 attached [pid 6164] set_robust_list(0x55556540f660, 24 [pid 6163] set_robust_list(0x55556540f660, 24 [pid 6162] <... bpf resumed>) = 4 [pid 6161] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6163 [pid 6165] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6164 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6165 [pid 6162] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6165] <... set_robust_list resumed>) = 0 [pid 6164] <... set_robust_list resumed>) = 0 [pid 6163] <... set_robust_list resumed>) = 0 [pid 6161] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6162] <... bpf resumed>) = 5 [pid 6161] <... bpf resumed>) = 5 [pid 6165] <... prctl resumed>) = 0 [pid 6164] <... prctl resumed>) = 0 [pid 6164] setpgid(0, 0 [pid 6165] setpgid(0, 0 [pid 6164] <... setpgid resumed>) = 0 [pid 6163] <... prctl resumed>) = 0 [pid 6162] exit_group(0 [pid 6161] exit_group(0 [pid 6165] <... setpgid resumed>) = 0 [pid 6164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6163] setpgid(0, 0 [pid 6164] <... openat resumed>) = 3 [pid 6163] <... setpgid resumed>) = 0 [pid 6162] <... exit_group resumed>) = ? [pid 6161] <... exit_group resumed>) = ? [pid 6165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6164] write(3, "1000", 4 [pid 6165] <... openat resumed>) = 3 [pid 6164] <... write resumed>) = 4 [pid 6163] <... openat resumed>) = 3 [pid 6164] close(3) = 0 executing program [pid 6164] write(1, "executing program\n", 18) = 18 [pid 6164] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6164] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6165] write(3, "1000", 4 [pid 6163] write(3, "1000", 4 [pid 6162] +++ exited with 0 +++ [pid 6161] +++ exited with 0 +++ [pid 6165] <... write resumed>) = 4 [pid 6164] <... bpf resumed>) = 4 [pid 6163] <... write resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6161, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6162, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6165] close(3executing program executing program ) = 0 [pid 6163] close(3) = 0 [pid 6165] write(1, "executing program\n", 18 [pid 6163] write(1, "executing program\n", 18 [pid 6165] <... write resumed>) = 18 [pid 6164] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6163] <... write resumed>) = 18 [pid 6165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6165] <... bpf resumed>) = 3 [pid 6163] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6167 attached ./strace-static-x86_64: Process 6166 attached [pid 6163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6167] set_robust_list(0x55556540f660, 24 [pid 6166] set_robust_list(0x55556540f660, 24 [pid 6165] <... bpf resumed>) = 4 [pid 6164] <... bpf resumed>) = 5 [pid 6163] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6167 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6166 [pid 6167] <... set_robust_list resumed>) = 0 [pid 6166] <... set_robust_list resumed>) = 0 [pid 6166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6164] exit_group(0 [pid 6167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6165] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6164] <... exit_group resumed>) = ? [pid 6163] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6167] <... prctl resumed>) = 0 [pid 6166] <... prctl resumed>) = 0 [pid 6165] <... bpf resumed>) = 5 [pid 6166] setpgid(0, 0 [pid 6167] setpgid(0, 0 [pid 6166] <... setpgid resumed>) = 0 [pid 6167] <... setpgid resumed>) = 0 [pid 6165] exit_group(0 [pid 6167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6165] <... exit_group resumed>) = ? [pid 6166] <... openat resumed>) = 3 [pid 6167] <... openat resumed>) = 3 [pid 6167] write(3, "1000", 4 [pid 6166] write(3, "1000", 4 [pid 6167] <... write resumed>) = 4 [pid 6166] <... write resumed>) = 4 [pid 6167] close(3 [pid 6166] close(3 [pid 6167] <... close resumed>) = 0 [pid 6166] <... close resumed>) = 0 executing program executing program [pid 6167] write(1, "executing program\n", 18 [pid 6166] write(1, "executing program\n", 18 [pid 6167] <... write resumed>) = 18 [pid 6166] <... write resumed>) = 18 [pid 6167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6166] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6167] <... bpf resumed>) = 3 [pid 6166] <... bpf resumed>) = 3 [pid 6166] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6164] +++ exited with 0 +++ [pid 6163] <... bpf resumed>) = 5 [pid 6167] <... bpf resumed>) = 4 [pid 6166] <... bpf resumed>) = 4 [pid 6163] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6164, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6163] <... exit_group resumed>) = ? [pid 6167] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6168 attached [pid 6166] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6168 [pid 6168] set_robust_list(0x55556540f660, 24 [pid 6165] +++ exited with 0 +++ [pid 6163] +++ exited with 0 +++ [pid 6168] <... set_robust_list resumed>) = 0 [pid 6168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6163, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6165, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6168] <... prctl resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6168] setpgid(0, 0./strace-static-x86_64: Process 6169 attached ) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6169 ./strace-static-x86_64: Process 6170 attached [pid 6169] set_robust_list(0x55556540f660, 24 [pid 6168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6167] <... bpf resumed>) = 5 [pid 6166] <... bpf resumed>) = 5 [pid 6170] set_robust_list(0x55556540f660, 24 [pid 6167] exit_group(0 [pid 6170] <... set_robust_list resumed>) = 0 [pid 6169] <... set_robust_list resumed>) = 0 [pid 6168] <... openat resumed>) = 3 [pid 6166] exit_group(0 [pid 6170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6167] <... exit_group resumed>) = ? [pid 6166] <... exit_group resumed>) = ? [pid 6170] <... prctl resumed>) = 0 [pid 6169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6168] write(3, "1000", 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6170 [pid 6170] setpgid(0, 0 [pid 6169] <... prctl resumed>) = 0 [pid 6168] <... write resumed>) = 4 [pid 6170] <... setpgid resumed>) = 0 [pid 6170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6168] close(3 [pid 6169] setpgid(0, 0 [pid 6170] <... openat resumed>) = 3 [pid 6168] <... close resumed>) = 0 [pid 6169] <... setpgid resumed>) = 0 [pid 6170] write(3, "1000", 4 [pid 6169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6168] write(1, "executing program\n", 18 [pid 6167] +++ exited with 0 +++ [pid 6166] +++ exited with 0 +++ executing program [pid 6170] <... write resumed>) = 4 [pid 6169] <... openat resumed>) = 3 [pid 6168] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6167, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6166, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6170] close(3 [pid 6169] write(3, "1000", 4 [pid 6168] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6170] <... close resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6169] <... write resumed>) = 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6169] close(3 [pid 6168] <... bpf resumed>) = 3 [pid 6169] <... close resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6169] write(1, "executing program\n", 18 executing program executing program [pid 6168] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6170] write(1, "executing program\n", 18 [pid 6169] <... write resumed>) = 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6170] <... write resumed>) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6169] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6171 attached [pid 6169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6170] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6171] set_robust_list(0x55556540f660, 24 [pid 6169] <... bpf resumed>) = 4 [pid 6171] <... set_robust_list resumed>) = 0 [pid 6171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6171] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6172 attached [pid 6171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6170] <... bpf resumed>) = 3 [pid 6168] <... bpf resumed>) = 4 [pid 6172] set_robust_list(0x55556540f660, 24 [pid 6170] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6171 [pid 6172] <... set_robust_list resumed>) = 0 [pid 6171] <... openat resumed>) = 3 [pid 6172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6171] write(3, "1000", 4 [pid 6172] <... prctl resumed>) = 0 [pid 6171] <... write resumed>) = 4 [pid 6170] <... bpf resumed>) = 4 [pid 6169] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6168] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6172 [pid 6172] setpgid(0, 0 [pid 6171] close(3 [pid 6172] <... setpgid resumed>) = 0 [pid 6171] <... close resumed>) = 0 [pid 6169] <... bpf resumed>) = 5 [pid 6172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6171] write(1, "executing program\n", 18 [pid 6168] <... bpf resumed>) = 5 executing program [pid 6171] <... write resumed>) = 18 [pid 6171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6172] <... openat resumed>) = 3 [pid 6170] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6169] exit_group(0 [pid 6168] exit_group(0 [pid 6172] write(3, "1000", 4 [pid 6171] <... bpf resumed>) = 3 [pid 6170] <... bpf resumed>) = 5 [pid 6169] <... exit_group resumed>) = ? [pid 6168] <... exit_group resumed>) = ? [pid 6172] <... write resumed>) = 4 [pid 6171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6172] close(3 [pid 6171] <... bpf resumed>) = 4 [pid 6172] <... close resumed>) = 0 [pid 6168] +++ exited with 0 +++ [pid 6172] write(1, "executing program\n", 18 [pid 6170] exit_group(0 executing program [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6168, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6172] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6172] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6171] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6172] <... bpf resumed>) = 3 [pid 6171] <... bpf resumed>) = 5 [pid 6172] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6171] exit_group(0 [pid 6170] <... exit_group resumed>) = ? [pid 6169] +++ exited with 0 +++ [pid 6172] <... bpf resumed>) = 4 [pid 6171] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6169, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6172] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6173 attached [pid 6172] <... bpf resumed>) = 5 [pid 6171] +++ exited with 0 +++ ./strace-static-x86_64: Process 6174 attached [pid 6173] set_robust_list(0x55556540f660, 24 [pid 6172] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6173 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6171, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6173] <... set_robust_list resumed>) = 0 [pid 6172] <... exit_group resumed>) = ? [pid 6174] set_robust_list(0x55556540f660, 24) = 0 [pid 6173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6174 [pid 6174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6173] <... prctl resumed>) = 0 [pid 6174] <... prctl resumed>) = 0 [pid 6173] setpgid(0, 0 [pid 6174] setpgid(0, 0) = 0 [pid 6173] <... setpgid resumed>) = 0 [pid 6174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6174] write(3, "1000", 4) = 4 [pid 6174] close(3./strace-static-x86_64: Process 6175 attached ) = 0 [pid 6173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6172] +++ exited with 0 +++ [pid 6170] +++ exited with 0 +++ [pid 6175] set_robust_list(0x55556540f660, 24 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6170, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6175] <... set_robust_list resumed>) = 0 [pid 6174] write(1, "executing program\n", 18 [pid 6173] <... openat resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6172, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6175 [pid 6175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6174] <... write resumed>) = 18 [pid 6173] write(3, "1000", 4 [pid 6175] <... prctl resumed>) = 0 [pid 6174] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6173] <... write resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6175] setpgid(0, 0 [pid 6174] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6177 attached ./strace-static-x86_64: Process 6176 attached [pid 6175] <... setpgid resumed>) = 0 [pid 6174] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6173] close(3 [pid 6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6176 [pid 6177] set_robust_list(0x55556540f660, 24 [pid 6176] set_robust_list(0x55556540f660, 24 [pid 6174] <... bpf resumed>) = 4 [pid 6173] <... close resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6177 [pid 6177] <... set_robust_list resumed>) = 0 [pid 6176] <... set_robust_list resumed>) = 0 executing program [pid 6175] <... openat resumed>) = 3 [pid 6173] write(1, "executing program\n", 18 [pid 6177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6174] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6177] <... prctl resumed>) = 0 [pid 6176] <... prctl resumed>) = 0 [pid 6175] write(3, "1000", 4 [pid 6174] <... bpf resumed>) = 5 [pid 6173] <... write resumed>) = 18 [pid 6177] setpgid(0, 0 [pid 6176] setpgid(0, 0 [pid 6175] <... write resumed>) = 4 [pid 6177] <... setpgid resumed>) = 0 [pid 6175] close(3 [pid 6177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6176] <... setpgid resumed>) = 0 [pid 6175] <... close resumed>) = 0 [pid 6174] exit_group(0 [pid 6173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6177] <... openat resumed>) = 3 [pid 6176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6174] <... exit_group resumed>) = ? [pid 6177] write(3, "1000", 4 [pid 6175] write(1, "executing program\n", 18 [pid 6177] <... write resumed>) = 4 [pid 6173] <... bpf resumed>) = 3 [pid 6175] <... write resumed>) = 18 [pid 6177] close(3 [pid 6176] <... openat resumed>) = 3 [pid 6175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6177] <... close resumed>) = 0 [pid 6175] <... bpf resumed>) = 3 [pid 6177] write(1, "executing program\n", 18 executing program [pid 6175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6177] <... write resumed>) = 18 [pid 6176] write(3, "1000", 4 [pid 6177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6176] <... write resumed>) = 4 [pid 6177] <... bpf resumed>) = 3 [pid 6176] close(3 [pid 6177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6176] <... close resumed>) = 0 executing program [pid 6176] write(1, "executing program\n", 18) = 18 [pid 6176] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6176] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6177] <... bpf resumed>) = 4 [pid 6176] <... bpf resumed>) = 4 [pid 6175] <... bpf resumed>) = 4 [pid 6174] +++ exited with 0 +++ [pid 6173] <... bpf resumed>) = 4 [pid 6177] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6176] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6175] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6173] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6174, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6177] <... bpf resumed>) = 5 [pid 6176] <... bpf resumed>) = 5 [pid 6173] <... bpf resumed>) = 5 [pid 6177] exit_group(0 [pid 6175] <... bpf resumed>) = 5 [pid 6173] exit_group(0 [pid 6177] <... exit_group resumed>) = ? [pid 6173] <... exit_group resumed>) = ? [pid 6176] exit_group(0 [pid 6175] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6176] <... exit_group resumed>) = ? [pid 6177] +++ exited with 0 +++ [pid 6176] +++ exited with 0 +++ [pid 6175] <... exit_group resumed>) = ? [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6177, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6176, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6178 attached [pid 6178] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6178 [pid 6178] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6179 attached [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6179 [pid 6179] set_robust_list(0x55556540f660, 24 [pid 6178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... restart_syscall resumed>) = 0 [pid 6179] <... set_robust_list resumed>) = 0 [pid 6178] <... prctl resumed>) = 0 [pid 6179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6178] setpgid(0, 0 [pid 6179] <... prctl resumed>) = 0 [pid 6179] setpgid(0, 0 [pid 6178] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6179] <... setpgid resumed>) = 0 [pid 6178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6178] write(3, "1000", 4./strace-static-x86_64: Process 6180 attached [pid 6179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6175] +++ exited with 0 +++ [pid 6173] +++ exited with 0 +++ [pid 6180] set_robust_list(0x55556540f660, 24) = 0 [pid 6179] <... openat resumed>) = 3 [pid 6178] <... write resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6180 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6173, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6175, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6179] write(3, "1000", 4 [pid 6178] close(3executing program [pid 6180] <... prctl resumed>) = 0 [pid 6179] <... write resumed>) = 4 [pid 6178] <... close resumed>) = 0 [pid 6178] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6178] <... write resumed>) = 18 [pid 6178] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6181 attached [pid 6179] close(3 [pid 6178] <... bpf resumed>) = 3 [pid 6180] setpgid(0, 0) = 0 [pid 6179] <... close resumed>) = 0 [pid 6181] set_robust_list(0x55556540f660, 24 [pid 6180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6181] <... set_robust_list resumed>) = 0 executing program [pid 6179] write(1, "executing program\n", 18 [pid 6178] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6180] <... openat resumed>) = 3 [pid 6179] <... write resumed>) = 18 ./strace-static-x86_64: Process 6182 attached [pid 6181] <... prctl resumed>) = 0 [pid 6180] write(3, "1000", 4 [pid 6179] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6178] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6181 [pid 6182] set_robust_list(0x55556540f660, 24 [pid 6181] setpgid(0, 0 [pid 6180] <... write resumed>) = 4 [pid 6179] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6182 [pid 6182] <... set_robust_list resumed>) = 0 [pid 6180] close(3 [pid 6182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6181] <... setpgid resumed>) = 0 [pid 6180] <... close resumed>) = 0 [pid 6178] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6182] <... prctl resumed>) = 0 [pid 6181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6180] write(1, "executing program\n", 18 [pid 6179] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6178] <... bpf resumed>) = 5 [pid 6182] setpgid(0, 0 [pid 6181] <... openat resumed>) = 3 [pid 6180] <... write resumed>) = 18 [pid 6181] write(3, "1000", 4 [pid 6182] <... setpgid resumed>) = 0 [pid 6181] <... write resumed>) = 4 [pid 6180] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6179] <... bpf resumed>) = 4 [pid 6178] exit_group(0 [pid 6182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6181] close(3 [pid 6179] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6180] <... bpf resumed>) = 3 [pid 6182] <... openat resumed>) = 3 [pid 6181] <... close resumed>) = 0 [pid 6182] write(3, "1000", 4 [pid 6180] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6182] <... write resumed>) = 4 executing program [pid 6179] <... bpf resumed>) = 5 [pid 6181] write(1, "executing program\n", 18 [pid 6178] <... exit_group resumed>) = ? [pid 6181] <... write resumed>) = 18 [pid 6182] close(3 [pid 6181] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6179] exit_group(0 [pid 6182] <... close resumed>) = 0 [pid 6181] <... bpf resumed>) = 3 [pid 6180] <... bpf resumed>) = 4 [pid 6179] <... exit_group resumed>) = ? [pid 6182] write(1, "executing program\n", 18 [pid 6181] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6180] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6182] <... write resumed>) = 18 [pid 6181] <... bpf resumed>) = 4 [pid 6179] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6179, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6182] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6181] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6183 [pid 6182] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6183 attached ) = 4 [pid 6178] +++ exited with 0 +++ [pid 6183] set_robust_list(0x55556540f660, 24 [pid 6182] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6178, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6183] <... set_robust_list resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6184 attached [pid 6183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6184 [pid 6184] set_robust_list(0x55556540f660, 24 [pid 6183] <... prctl resumed>) = 0 [pid 6182] <... bpf resumed>) = 5 [pid 6181] <... bpf resumed>) = 5 [pid 6180] <... bpf resumed>) = 5 [pid 6184] <... set_robust_list resumed>) = 0 [pid 6183] setpgid(0, 0 [pid 6181] exit_group(0 [pid 6182] exit_group(0 [pid 6184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6183] <... setpgid resumed>) = 0 [pid 6181] <... exit_group resumed>) = ? [pid 6184] <... prctl resumed>) = 0 [pid 6183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6182] <... exit_group resumed>) = ? [pid 6181] +++ exited with 0 +++ [pid 6180] exit_group(0 [pid 6184] setpgid(0, 0) = 0 [pid 6183] <... openat resumed>) = 3 [pid 6182] +++ exited with 0 +++ [pid 6180] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6180] +++ exited with 0 +++ [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6183] write(3, "1000", 4) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6180, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6182, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6183] close(3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6183] <... close resumed>) = 0 [pid 6183] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6185 attached [pid 6183] <... write resumed>) = 18 [pid 6183] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6185] set_robust_list(0x55556540f660, 24 [pid 6184] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6185 [pid 6185] <... set_robust_list resumed>) = 0 [pid 6183] <... bpf resumed>) = 3 [pid 6185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6184] write(3, "1000", 4 [pid 6183] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6184] <... write resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6184] close(3 [pid 6185] <... prctl resumed>) = 0 [pid 6184] <... close resumed>) = 0 [pid 6183] <... bpf resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6185] setpgid(0, 0 [pid 6184] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6185] <... setpgid resumed>) = 0 [pid 6184] <... write resumed>) = 18 [pid 6183] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6184] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6183] <... bpf resumed>) = 5 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6185] <... openat resumed>) = 3 executing program [pid 6184] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6186 attached [pid 6184] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6183] exit_group(0) = ? [pid 6186] set_robust_list(0x55556540f660, 24 [pid 6185] write(3, "1000", 4 [pid 6183] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6186 [pid 6186] <... set_robust_list resumed>) = 0 [pid 6185] <... write resumed>) = 4 [pid 6186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6185] close(3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6183, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6186] <... prctl resumed>) = 0 [pid 6185] <... close resumed>) = 0 [pid 6184] <... bpf resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6186] setpgid(0, 0./strace-static-x86_64: Process 6187 attached executing program ) = 0 [pid 6185] write(1, "executing program\n", 18 [pid 6184] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6185] <... write resumed>) = 18 [pid 6187] set_robust_list(0x55556540f660, 24 [pid 6185] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6187 [pid 6187] <... set_robust_list resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6187] setpgid(0, 0 [pid 6186] <... openat resumed>) = 3 [pid 6185] <... bpf resumed>) = 3 [pid 6187] <... setpgid resumed>) = 0 [pid 6186] write(3, "1000", 4 [pid 6185] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6186] <... write resumed>) = 4 [pid 6185] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6188 attached [pid 6187] <... openat resumed>) = 3 [pid 6186] close(3 [pid 6184] <... bpf resumed>) = 5 [pid 6187] write(3, "1000", 4 [pid 6186] <... close resumed>) = 0 [pid 6185] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6184] exit_group(0executing program [pid 6188] set_robust_list(0x55556540f660, 24 [pid 6187] <... write resumed>) = 4 [pid 6186] write(1, "executing program\n", 18 [pid 6185] <... bpf resumed>) = 5 [pid 6184] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6188 [pid 6188] <... set_robust_list resumed>) = 0 [pid 6187] close(3 [pid 6186] <... write resumed>) = 18 [pid 6188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6187] <... close resumed>) = 0 executing program [pid 6186] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6188] <... prctl resumed>) = 0 [pid 6187] write(1, "executing program\n", 18 [pid 6185] exit_group(0 [pid 6187] <... write resumed>) = 18 [pid 6185] <... exit_group resumed>) = ? [pid 6188] setpgid(0, 0 [pid 6187] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6186] <... bpf resumed>) = 3 [pid 6188] <... setpgid resumed>) = 0 [pid 6187] <... bpf resumed>) = 3 [pid 6188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6186] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6188] <... openat resumed>) = 3 [pid 6187] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6186] <... bpf resumed>) = 4 [pid 6185] +++ exited with 0 +++ [pid 6184] +++ exited with 0 +++ [pid 6188] write(3, "1000", 4) = 4 [pid 6186] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6185, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6188] close(3 [pid 6187] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6184, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6189 attached [pid 6188] <... close resumed>) = 0 [pid 6187] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6188] write(1, "executing program\n", 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6188] <... write resumed>) = 18 [pid 6189] set_robust_list(0x55556540f660, 24 executing program [pid 6188] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6189] <... set_robust_list resumed>) = 0 [pid 6189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6188] <... bpf resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6189 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6190 attached [pid 6189] <... prctl resumed>) = 0 [pid 6188] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6190] set_robust_list(0x55556540f660, 24 [pid 6189] setpgid(0, 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6190 [pid 6190] <... set_robust_list resumed>) = 0 [pid 6189] <... setpgid resumed>) = 0 [pid 6188] <... bpf resumed>) = 4 [pid 6187] <... bpf resumed>) = 5 [pid 6186] <... bpf resumed>) = 5 [pid 6190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6186] exit_group(0 [pid 6187] exit_group(0 [pid 6190] <... prctl resumed>) = 0 [pid 6189] <... openat resumed>) = 3 [pid 6188] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6186] <... exit_group resumed>) = ? [pid 6190] setpgid(0, 0 [pid 6189] write(3, "1000", 4 [pid 6188] <... bpf resumed>) = 5 [pid 6187] <... exit_group resumed>) = ? [pid 6190] <... setpgid resumed>) = 0 [pid 6187] +++ exited with 0 +++ [pid 6189] <... write resumed>) = 4 [pid 6188] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6187, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6189] close(3 [pid 6190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6189] <... close resumed>) = 0 [pid 6188] <... exit_group resumed>) = ? executing program [pid 6189] write(1, "executing program\n", 18 [pid 6190] <... openat resumed>) = 3 [pid 6189] <... write resumed>) = 18 [pid 6189] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6190] write(3, "1000", 4) = 4 [pid 6189] <... bpf resumed>) = 3 [pid 6190] close(3) = 0 [pid 6189] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6190] write(1, "executing program\n", 18executing program ) = 18 [pid 6189] <... bpf resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6190] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6189] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6190] <... bpf resumed>) = 3 [pid 6186] +++ exited with 0 +++ [pid 6190] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6188] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6186, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6188, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6191 attached [pid 6190] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6191] set_robust_list(0x55556540f660, 24 [pid 6190] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6191] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6191 [pid 6191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6191] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6192 attached [pid 6191] setpgid(0, 0 [pid 6192] set_robust_list(0x55556540f660, 24 [pid 6191] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6192 [pid 6192] <... set_robust_list resumed>) = 0 [pid 6191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6191] <... openat resumed>) = 3 [pid 6192] <... prctl resumed>) = 0 [pid 6190] <... bpf resumed>) = 5 [pid 6189] <... bpf resumed>) = 5 [pid 6192] setpgid(0, 0 [pid 6191] write(3, "1000", 4 [pid 6190] exit_group(0 [pid 6192] <... setpgid resumed>) = 0 [pid 6191] <... write resumed>) = 4 [pid 6190] <... exit_group resumed>) = ? [pid 6189] exit_group(0 [pid 6192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6191] close(3 [pid 6190] +++ exited with 0 +++ [pid 6189] <... exit_group resumed>) = ? [pid 6191] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6190, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6193 attached [pid 6191] write(1, "executing program\n", 18 [pid 6193] set_robust_list(0x55556540f660, 24 executing program [pid 6192] <... openat resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6193 [pid 6192] write(3, "1000", 4 [pid 6191] <... write resumed>) = 18 [pid 6193] <... set_robust_list resumed>) = 0 [pid 6192] <... write resumed>) = 4 [pid 6191] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6192] close(3 [pid 6191] <... bpf resumed>) = 3 [pid 6193] setpgid(0, 0 [pid 6192] <... close resumed>) = 0 [pid 6191] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6189] +++ exited with 0 +++ executing program [pid 6193] <... setpgid resumed>) = 0 [pid 6192] write(1, "executing program\n", 18 [pid 6191] <... bpf resumed>) = 4 [pid 6192] <... write resumed>) = 18 [pid 6192] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6189, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6192] <... bpf resumed>) = 3 [pid 6191] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6193] <... openat resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6193] write(3, "1000", 4) = 4 [pid 6192] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6193] close(3 [pid 6192] <... bpf resumed>) = 4 [pid 6193] <... close resumed>) = 0 executing program [pid 6193] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6193] <... write resumed>) = 18 [pid 6192] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6194 attached [pid 6194] set_robust_list(0x55556540f660, 24 [pid 6193] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6192] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6194] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6194 [pid 6191] <... bpf resumed>) = 5 [pid 6191] exit_group(0) = ? ./strace-static-x86_64: Process 6195 attached [pid 6194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6193] <... bpf resumed>) = 3 [pid 6192] exit_group(0 [pid 6195] set_robust_list(0x55556540f660, 24 [pid 6194] <... prctl resumed>) = 0 [pid 6193] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6195] <... set_robust_list resumed>) = 0 [pid 6194] setpgid(0, 0 [pid 6192] <... exit_group resumed>) = ? [pid 6191] +++ exited with 0 +++ [pid 6195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6194] <... setpgid resumed>) = 0 [pid 6193] <... bpf resumed>) = 4 [pid 6192] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6195 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6192, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6195] <... prctl resumed>) = 0 [pid 6193] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6195] setpgid(0, 0 [pid 6194] <... openat resumed>) = 3 [pid 6195] <... setpgid resumed>) = 0 [pid 6194] write(3, "1000", 4 [pid 6195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6194] <... write resumed>) = 4 [pid 6193] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6196 attached [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6194] close(3 [pid 6196] set_robust_list(0x55556540f660, 24 [pid 6195] <... openat resumed>) = 3 [pid 6194] <... close resumed>) = 0 [pid 6193] exit_group(0executing program [pid 6196] <... set_robust_list resumed>) = 0 [pid 6195] write(3, "1000", 4 [pid 6194] write(1, "executing program\n", 18 [pid 6193] <... exit_group resumed>) = ? [pid 6194] <... write resumed>) = 18 ./strace-static-x86_64: Process 6197 attached [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6195] <... write resumed>) = 4 [pid 6194] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6196 [pid 6197] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6197 [pid 6197] <... set_robust_list resumed>) = 0 [pid 6196] <... prctl resumed>) = 0 [pid 6195] close(3 [pid 6197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6196] setpgid(0, 0 [pid 6194] <... bpf resumed>) = 3 [pid 6196] <... setpgid resumed>) = 0 [pid 6195] <... close resumed>) = 0 [pid 6197] <... prctl resumed>) = 0 [pid 6197] setpgid(0, 0 [pid 6195] write(1, "executing program\n", 18 executing program [pid 6194] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6195] <... write resumed>) = 18 [pid 6197] <... setpgid resumed>) = 0 [pid 6196] <... openat resumed>) = 3 [pid 6195] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6194] <... bpf resumed>) = 4 [pid 6193] +++ exited with 0 +++ [pid 6197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6196] write(3, "1000", 4 [pid 6195] <... bpf resumed>) = 3 [pid 6194] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program executing program [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6193, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6197] <... openat resumed>) = 3 [pid 6196] <... write resumed>) = 4 [pid 6195] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6194] <... bpf resumed>) = 5 [pid 6197] write(3, "1000", 4 [pid 6196] close(3 [pid 6197] <... write resumed>) = 4 [pid 6196] <... close resumed>) = 0 [pid 6197] close(3 [pid 6196] write(1, "executing program\n", 18 [pid 6197] <... close resumed>) = 0 [pid 6196] <... write resumed>) = 18 [pid 6197] write(1, "executing program\n", 18) = 18 [pid 6196] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6195] <... bpf resumed>) = 4 [pid 6194] exit_group(0 [pid 6197] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6196] <... bpf resumed>) = 3 [pid 6195] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6194] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6197] <... bpf resumed>) = 3 [pid 6196] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6195] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6198 attached [pid 6197] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6196] <... bpf resumed>) = 4 [pid 6195] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6198 [pid 6198] set_robust_list(0x55556540f660, 24 [pid 6195] <... exit_group resumed>) = ? [pid 6197] <... bpf resumed>) = 4 [pid 6198] <... set_robust_list resumed>) = 0 [pid 6196] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6197] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6198] setpgid(0, 0) = 0 [pid 6198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6198] write(3, "1000", 4) = 4 [pid 6198] close(3) = 0 executing program [pid 6198] write(1, "executing program\n", 18) = 18 [pid 6198] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6198] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6198] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6194] +++ exited with 0 +++ [pid 6195] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6194, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6195, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6199 attached [pid 6198] <... bpf resumed>) = 5 [pid 6197] <... bpf resumed>) = 5 [pid 6196] <... bpf resumed>) = 5 [pid 6199] set_robust_list(0x55556540f660, 24 [pid 6197] exit_group(0 [pid 6198] exit_group(0 [pid 6199] <... set_robust_list resumed>) = 0 [pid 6198] <... exit_group resumed>) = ? [pid 6197] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6200 attached [pid 6199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6197] +++ exited with 0 +++ [pid 6196] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6199 [pid 6199] <... prctl resumed>) = 0 [pid 6199] setpgid(0, 0) = 0 [pid 6200] set_robust_list(0x55556540f660, 24 [pid 6198] +++ exited with 0 +++ [pid 6196] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6197, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6200] <... set_robust_list resumed>) = 0 [pid 6199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6200 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6198, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6200] <... prctl resumed>) = 0 [pid 6200] setpgid(0, 0) = 0 [pid 6199] <... openat resumed>) = 3 [pid 6200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6199] write(3, "1000", 4) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6200] <... openat resumed>) = 3 [pid 6200] write(3, "1000", 4 [pid 6196] +++ exited with 0 +++ ./strace-static-x86_64: Process 6201 attached [pid 6200] <... write resumed>) = 4 [pid 6200] close(3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6196, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6200] <... close resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6200] write(1, "executing program\n", 18executing program ) = 18 [pid 6200] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6201] set_robust_list(0x55556540f660, 24 [pid 6200] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6201 [pid 6201] <... set_robust_list resumed>) = 0 [pid 6200] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6200] <... bpf resumed>) = 4 [pid 6199] close(3executing program [pid 6201] <... prctl resumed>) = 0 [pid 6199] <... close resumed>) = 0 [pid 6201] setpgid(0, 0 [pid 6199] write(1, "executing program\n", 18 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6201] <... setpgid resumed>) = 0 [pid 6200] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6199] <... write resumed>) = 18 [pid 6201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6199] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6201] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6202 attached [pid 6201] write(3, "1000", 4 [pid 6199] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6200] <... bpf resumed>) = 5 [pid 6199] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6202 ./strace-static-x86_64: Process 6203 attached [pid 6200] exit_group(0 [pid 6203] set_robust_list(0x55556540f660, 24 [pid 6202] set_robust_list(0x55556540f660, 24 [pid 6201] <... write resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6203 [pid 6203] <... set_robust_list resumed>) = 0 [pid 6202] <... set_robust_list resumed>) = 0 [pid 6201] close(3 [pid 6203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6201] <... close resumed>) = 0 [pid 6200] <... exit_group resumed>) = ? [pid 6203] <... prctl resumed>) = 0 executing program [pid 6202] <... prctl resumed>) = 0 [pid 6201] write(1, "executing program\n", 18 [pid 6203] setpgid(0, 0 [pid 6202] setpgid(0, 0 [pid 6200] +++ exited with 0 +++ [pid 6201] <... write resumed>) = 18 [pid 6203] <... setpgid resumed>) = 0 [pid 6202] <... setpgid resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6200, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6201] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6203] <... openat resumed>) = 3 [pid 6202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6199] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6203] write(3, "1000", 4 [pid 6201] <... bpf resumed>) = 3 [pid 6203] <... write resumed>) = 4 [pid 6202] <... openat resumed>) = 3 [pid 6203] close(3 executing program [pid 6201] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6202] write(3, "1000", 4 [pid 6203] <... close resumed>) = 0 [pid 6203] write(1, "executing program\n", 18) = 18 [pid 6203] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6202] <... write resumed>) = 4 [pid 6201] <... bpf resumed>) = 4 [pid 6203] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6202] close(3 [pid 6201] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6202] <... close resumed>) = 0 [pid 6202] write(1, "executing program\n", 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6203] <... bpf resumed>) = 4 [pid 6202] <... write resumed>) = 18 [pid 6203] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6202] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6204 attached [pid 6202] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6204 [pid 6204] set_robust_list(0x55556540f660, 24 [pid 6202] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6204] <... set_robust_list resumed>) = 0 [pid 6203] <... bpf resumed>) = 5 [pid 6202] <... bpf resumed>) = 4 [pid 6201] <... bpf resumed>) = 5 [pid 6199] <... bpf resumed>) = 5 [pid 6204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6203] exit_group(0) = ? [pid 6201] exit_group(0 [pid 6199] exit_group(0 [pid 6204] <... prctl resumed>) = 0 [pid 6203] +++ exited with 0 +++ [pid 6202] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6201] <... exit_group resumed>) = ? [pid 6199] <... exit_group resumed>) = ? [pid 6204] setpgid(0, 0 [pid 6202] <... bpf resumed>) = 5 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6203, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6201] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6201, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6204] <... setpgid resumed>) = 0 [pid 6202] exit_group(0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6202] <... exit_group resumed>) = ? [pid 6204] <... openat resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6205 attached [pid 6202] +++ exited with 0 +++ [pid 6199] +++ exited with 0 +++ [pid 6204] write(3, "1000", 4) = 4 [pid 6204] close(3) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6205 executing program [pid 6204] write(1, "executing program\n", 18) = 18 [pid 6204] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6205] set_robust_list(0x55556540f660, 24) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6199, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6202, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6204] <... bpf resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6205] <... prctl resumed>) = 0 [pid 6204] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6205] setpgid(0, 0 [pid 6204] <... bpf resumed>) = 4 [pid 6204] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6205] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6204] <... bpf resumed>) = 5 [pid 6204] exit_group(0) = ? ./strace-static-x86_64: Process 6206 attached ./strace-static-x86_64: Process 6207 attached [pid 6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6204] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6205] <... openat resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6207 [pid 6205] write(3, "1000", 4) = 4 [pid 6205] close(3) = 0 [pid 6205] write(1, "executing program\n", 18./strace-static-x86_64: Process 6208 attached ) = 18 [pid 6206] set_robust_list(0x55556540f660, 24 [pid 6207] set_robust_list(0x55556540f660, 24 [pid 6205] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6208] set_robust_list(0x55556540f660, 24 [pid 6207] <... set_robust_list resumed>) = 0 [pid 6205] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6204, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6208] <... set_robust_list resumed>) = 0 [pid 6206] <... set_robust_list resumed>) = 0 [pid 6205] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6207] <... prctl resumed>) = 0 [pid 6205] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6206 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6208 [pid 6207] setpgid(0, 0 [pid 6206] <... prctl resumed>) = 0 [pid 6208] <... prctl resumed>) = 0 [pid 6208] setpgid(0, 0) = 0 [pid 6208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6209 attached [pid 6205] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6206] setpgid(0, 0 [pid 6209] set_robust_list(0x55556540f660, 24 [pid 6208] <... openat resumed>) = 3 [pid 6207] <... setpgid resumed>) = 0 [pid 6206] <... setpgid resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6209 [pid 6209] <... set_robust_list resumed>) = 0 [pid 6208] write(3, "1000", 4 [pid 6209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6209] <... prctl resumed>) = 0 [pid 6208] <... write resumed>) = 4 [pid 6209] setpgid(0, 0 [pid 6208] close(3 [pid 6206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6207] <... openat resumed>) = 3 [pid 6209] <... setpgid resumed>) = 0 executing program [pid 6208] <... close resumed>) = 0 [pid 6209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6208] write(1, "executing program\n", 18) = 18 [pid 6206] <... openat resumed>) = 3 [pid 6207] write(3, "1000", 4 [pid 6208] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6206] write(3, "1000", 4 [pid 6209] <... openat resumed>) = 3 [pid 6208] <... bpf resumed>) = 3 [pid 6207] <... write resumed>) = 4 [pid 6206] <... write resumed>) = 4 [pid 6209] write(3, "1000", 4 [pid 6208] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6207] close(3 [pid 6209] <... write resumed>) = 4 executing program executing program [pid 6208] <... bpf resumed>) = 4 [pid 6207] <... close resumed>) = 0 [pid 6206] close(3 [pid 6209] close(3 [pid 6207] write(1, "executing program\n", 18 [pid 6206] <... close resumed>) = 0 [pid 6207] <... write resumed>) = 18 [pid 6206] write(1, "executing program\n", 18 [pid 6209] <... close resumed>) = 0 executing program [pid 6207] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6206] <... write resumed>) = 18 [pid 6209] write(1, "executing program\n", 18) = 18 [pid 6208] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6209] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6206] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6209] <... bpf resumed>) = 3 [pid 6207] <... bpf resumed>) = 3 [pid 6209] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6208] <... bpf resumed>) = 5 [pid 6207] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6206] <... bpf resumed>) = 3 [pid 6205] <... bpf resumed>) = 5 [pid 6209] <... bpf resumed>) = 4 [pid 6208] exit_group(0 [pid 6207] <... bpf resumed>) = 4 [pid 6206] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6209] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6208] <... exit_group resumed>) = ? [pid 6207] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6205] exit_group(0 [pid 6209] <... bpf resumed>) = 5 [pid 6208] +++ exited with 0 +++ [pid 6207] <... bpf resumed>) = 5 [pid 6206] <... bpf resumed>) = 4 [pid 6209] exit_group(0 [pid 6207] exit_group(0 [pid 6205] <... exit_group resumed>) = ? [pid 6206] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6208, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6209] <... exit_group resumed>) = ? [pid 6207] <... exit_group resumed>) = ? [pid 6205] +++ exited with 0 +++ [pid 6209] +++ exited with 0 +++ [pid 6207] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6205, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6209, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6210 attached [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6210 ./strace-static-x86_64: Process 6211 attached [pid 6210] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6212 attached ) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6211 [pid 6212] set_robust_list(0x55556540f660, 24 [pid 6210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6212] <... set_robust_list resumed>) = 0 [pid 6212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6211] set_robust_list(0x55556540f660, 24) = 0 [pid 6210] <... prctl resumed>) = 0 [pid 6206] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6212 [pid 6212] setpgid(0, 0 [pid 6206] exit_group(0 [pid 6210] setpgid(0, 0 [pid 6212] <... setpgid resumed>) = 0 [pid 6206] <... exit_group resumed>) = ? [pid 6212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6210] <... setpgid resumed>) = 0 [pid 6206] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6212] <... openat resumed>) = 3 [pid 6210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6212] write(3, "1000", 4./strace-static-x86_64: Process 6213 attached [pid 6211] <... prctl resumed>) = 0 [pid 6210] <... openat resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6206, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6211] setpgid(0, 0 [pid 6212] <... write resumed>) = 4 [pid 6213] set_robust_list(0x55556540f660, 24 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6211] <... setpgid resumed>) = 0 [pid 6210] write(3, "1000", 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6213] <... set_robust_list resumed>) = 0 [pid 6212] close(3 [pid 6210] <... write resumed>) = 4 [pid 6213] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6212] <... close resumed>) = 0 [pid 6210] close(3 [pid 6211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6210] <... close resumed>) = 0 [pid 6213] <... prctl resumed>) = 0 executing program [pid 6212] write(1, "executing program\n", 18 executing program [pid 6210] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6213 [pid 6213] setpgid(0, 0 [pid 6212] <... write resumed>) = 18 [pid 6213] <... setpgid resumed>) = 0 [pid 6212] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6214 attached [pid 6213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6212] <... bpf resumed>) = 3 [pid 6211] <... openat resumed>) = 3 [pid 6210] <... write resumed>) = 18 [pid 6211] write(3, "1000", 4 [pid 6210] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6211] <... write resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6214 [pid 6214] set_robust_list(0x55556540f660, 24) = 0 [pid 6211] close(3 [pid 6214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6213] <... openat resumed>) = 3 [pid 6212] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6211] <... close resumed>) = 0 [pid 6214] <... prctl resumed>) = 0 [pid 6213] write(3, "1000", 4executing program [pid 6212] <... bpf resumed>) = 4 [pid 6211] write(1, "executing program\n", 18 [pid 6210] <... bpf resumed>) = 3 [pid 6214] setpgid(0, 0 [pid 6213] <... write resumed>) = 4 [pid 6211] <... write resumed>) = 18 [pid 6213] close(3 [pid 6212] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6214] <... setpgid resumed>) = 0 [pid 6213] <... close resumed>) = 0 [pid 6212] <... bpf resumed>) = 5 [pid 6211] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6210] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6213] write(1, "executing program\n", 18) = 18 [pid 6212] exit_group(0 [pid 6213] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6212] <... exit_group resumed>) = ? [pid 6214] <... openat resumed>) = 3 [pid 6213] <... bpf resumed>) = 3 [pid 6212] +++ exited with 0 +++ [pid 6211] <... bpf resumed>) = 3 [pid 6210] <... bpf resumed>) = 4 [pid 6213] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6213] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6214] write(3, "1000", 4 [pid 6211] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6210] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6212, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6214] <... write resumed>) = 4 [pid 6213] <... bpf resumed>) = 5 [pid 6211] <... bpf resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6214] close(3 [pid 6210] <... bpf resumed>) = 5 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6214] <... close resumed>) = 0 [pid 6213] exit_group(0executing program [pid 6214] write(1, "executing program\n", 18 [pid 6213] <... exit_group resumed>) = ? [pid 6211] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6214] <... write resumed>) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6215 attached [pid 6215] set_robust_list(0x55556540f660, 24 [pid 6214] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6210] exit_group(0 [pid 6215] <... set_robust_list resumed>) = 0 [pid 6215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6214] <... bpf resumed>) = 3 [pid 6210] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6215 [pid 6215] <... prctl resumed>) = 0 [pid 6215] setpgid(0, 0) = 0 [pid 6215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6214] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6215] write(3, "1000", 4) = 4 [pid 6215] close(3 [pid 6214] <... bpf resumed>) = 4 [pid 6215] <... close resumed>) = 0 [pid 6215] write(1, "executing program\n", 18) = 18 [pid 6213] +++ exited with 0 +++ [pid 6215] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6211] <... bpf resumed>) = 5 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6213, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6215] <... bpf resumed>) = 3 [pid 6214] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6211] exit_group(0 [pid 6215] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6211] <... exit_group resumed>) = ? [pid 6215] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6216 attached , child_tidptr=0x55556540f650) = 6216 [pid 6216] set_robust_list(0x55556540f660, 24 [pid 6214] <... bpf resumed>) = 5 [pid 6210] +++ exited with 0 +++ [pid 6216] <... set_robust_list resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6210, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6214] exit_group(0) = ? [pid 6216] <... prctl resumed>) = 0 [pid 6216] setpgid(0, 0) = 0 [pid 6216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6217 attached [pid 6216] <... openat resumed>) = 3 [pid 6217] set_robust_list(0x55556540f660, 24 [pid 6216] write(3, "1000", 4 [pid 6215] <... bpf resumed>) = 5 [pid 6211] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6217 [pid 6216] <... write resumed>) = 4 [pid 6216] close(3 [pid 6217] <... set_robust_list resumed>) = 0 [pid 6216] <... close resumed>) = 0 [pid 6215] exit_group(0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6211, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6217] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 6216] write(1, "executing program\n", 18 [pid 6215] <... exit_group resumed>) = ? [pid 6217] <... prctl resumed>) = 0 [pid 6216] <... write resumed>) = 18 [pid 6216] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6217] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6217] <... setpgid resumed>) = 0 [pid 6216] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6218 attached [pid 6217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6218] set_robust_list(0x55556540f660, 24 [pid 6217] <... openat resumed>) = 3 [pid 6216] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6218 [pid 6218] <... set_robust_list resumed>) = 0 [pid 6217] write(3, "1000", 4 [pid 6218] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6217] <... write resumed>) = 4 [pid 6217] close(3) = 0 executing program [pid 6217] write(1, "executing program\n", 18 [pid 6218] <... prctl resumed>) = 0 [pid 6217] <... write resumed>) = 18 [pid 6216] <... bpf resumed>) = 4 [pid 6217] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6218] setpgid(0, 0 [pid 6216] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6218] <... setpgid resumed>) = 0 [pid 6217] <... bpf resumed>) = 3 [pid 6218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6217] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6218] <... openat resumed>) = 3 [pid 6217] <... bpf resumed>) = 4 [pid 6217] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6218] write(3, "1000", 4 [pid 6215] +++ exited with 0 +++ [pid 6214] +++ exited with 0 +++ [pid 6218] <... write resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6215, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6218] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6214, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6218] <... close resumed>) = 0 executing program [pid 6218] write(1, "executing program\n", 18) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6218] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6219 attached ) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6219] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6219 ./strace-static-x86_64: Process 6220 attached [pid 6219] <... set_robust_list resumed>) = 0 [pid 6220] set_robust_list(0x55556540f660, 24 [pid 6219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6218] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6217] <... bpf resumed>) = 5 [pid 6216] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6220 [pid 6220] <... set_robust_list resumed>) = 0 [pid 6219] <... prctl resumed>) = 0 [pid 6218] <... bpf resumed>) = 4 [pid 6217] exit_group(0 [pid 6216] exit_group(0 [pid 6219] setpgid(0, 0 [pid 6220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6218] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6216] <... exit_group resumed>) = ? [pid 6220] <... prctl resumed>) = 0 [pid 6219] <... setpgid resumed>) = 0 [pid 6218] <... bpf resumed>) = 5 [pid 6217] <... exit_group resumed>) = ? [pid 6216] +++ exited with 0 +++ [pid 6218] exit_group(0 [pid 6220] setpgid(0, 0 [pid 6219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6216, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6220] <... setpgid resumed>) = 0 [pid 6218] <... exit_group resumed>) = ? [pid 6219] <... openat resumed>) = 3 [pid 6220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6220] write(3, "1000", 4 [pid 6219] write(3, "1000", 4 [pid 6220] <... write resumed>) = 4 [pid 6219] <... write resumed>) = 4 [pid 6220] close(3 [pid 6219] close(3 [pid 6220] <... close resumed>) = 0 [pid 6219] <... close resumed>) = 0 executing program executing program [pid 6220] write(1, "executing program\n", 18 [pid 6219] write(1, "executing program\n", 18 [pid 6220] <... write resumed>) = 18 [pid 6220] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6219] <... write resumed>) = 18 [pid 6220] <... bpf resumed>) = 3 [pid 6219] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6220] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6219] <... bpf resumed>) = 3 [pid 6220] <... bpf resumed>) = 4 [pid 6219] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6220] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6219] <... bpf resumed>) = 4 [pid 6219] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6218] +++ exited with 0 +++ [pid 6217] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6217, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6218, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6221 attached [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6221] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6222 attached [pid 6220] <... bpf resumed>) = 5 [pid 6219] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6221 [pid 6222] set_robust_list(0x55556540f660, 24 [pid 6221] <... set_robust_list resumed>) = 0 [pid 6219] exit_group(0 [pid 6222] <... set_robust_list resumed>) = 0 [pid 6221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6219] <... exit_group resumed>) = ? [pid 6222] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6221] <... prctl resumed>) = 0 [pid 6220] exit_group(0 [pid 6219] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6222 [pid 6222] <... prctl resumed>) = 0 [pid 6221] setpgid(0, 0 [pid 6220] <... exit_group resumed>) = ? [pid 6222] setpgid(0, 0 [pid 6221] <... setpgid resumed>) = 0 [pid 6222] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6219, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6221] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6224 attached ./strace-static-x86_64: Process 6223 attached [pid 6222] <... openat resumed>) = 3 [pid 6220] +++ exited with 0 +++ [pid 6224] set_robust_list(0x55556540f660, 24 [pid 6223] set_robust_list(0x55556540f660, 24 [pid 6221] write(3, "1000", 4 [pid 6224] <... set_robust_list resumed>) = 0 [pid 6223] <... set_robust_list resumed>) = 0 [pid 6221] <... write resumed>) = 4 [pid 6223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6222] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6220, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6223 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6224 [pid 6222] <... write resumed>) = 4 [pid 6224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6223] <... prctl resumed>) = 0 [pid 6222] close(3 [pid 6221] close(3 [pid 6224] <... prctl resumed>) = 0 [pid 6223] setpgid(0, 0 [pid 6221] <... close resumed>) = 0 [pid 6224] setpgid(0, 0 [pid 6223] <... setpgid resumed>) = 0 executing program [pid 6221] write(1, "executing program\n", 18 [pid 6224] <... setpgid resumed>) = 0 [pid 6223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6222] <... close resumed>) = 0 [pid 6221] <... write resumed>) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6223] <... openat resumed>) = 3 [pid 6222] write(1, "executing program\n", 18 [pid 6221] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program ./strace-static-x86_64: Process 6225 attached [pid 6224] <... openat resumed>) = 3 [pid 6223] write(3, "1000", 4 [pid 6222] <... write resumed>) = 18 [pid 6221] <... bpf resumed>) = 3 [pid 6225] set_robust_list(0x55556540f660, 24 [pid 6223] <... write resumed>) = 4 [pid 6222] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6221] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program executing program [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6225 [pid 6225] <... set_robust_list resumed>) = 0 [pid 6224] write(3, "1000", 4 [pid 6223] close(3 [pid 6222] <... bpf resumed>) = 3 [pid 6221] <... bpf resumed>) = 4 [pid 6225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6224] <... write resumed>) = 4 [pid 6223] <... close resumed>) = 0 [pid 6225] <... prctl resumed>) = 0 [pid 6224] close(3 [pid 6223] write(1, "executing program\n", 18 [pid 6225] setpgid(0, 0 [pid 6224] <... close resumed>) = 0 [pid 6223] <... write resumed>) = 18 [pid 6221] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6225] <... setpgid resumed>) = 0 [pid 6224] write(1, "executing program\n", 18 [pid 6223] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6224] <... write resumed>) = 18 [pid 6223] <... bpf resumed>) = 3 [pid 6224] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6222] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6225] <... openat resumed>) = 3 [pid 6224] <... bpf resumed>) = 3 [pid 6223] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6221] <... bpf resumed>) = 5 [pid 6225] write(3, "1000", 4 [pid 6224] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6223] <... bpf resumed>) = 4 [pid 6222] <... bpf resumed>) = 4 [pid 6225] <... write resumed>) = 4 [pid 6224] <... bpf resumed>) = 4 [pid 6222] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6221] exit_group(0 [pid 6225] close(3) = 0 [pid 6223] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6221] <... exit_group resumed>) = ? [pid 6225] write(1, "executing program\n", 18executing program [pid 6224] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6223] <... bpf resumed>) = 5 [pid 6222] <... bpf resumed>) = 5 [pid 6221] +++ exited with 0 +++ [pid 6225] <... write resumed>) = 18 [pid 6225] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6224] <... bpf resumed>) = 5 [pid 6223] exit_group(0 [pid 6222] exit_group(0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6221, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6225] <... bpf resumed>) = 3 [pid 6224] exit_group(0 [pid 6222] <... exit_group resumed>) = ? [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6225] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6224] <... exit_group resumed>) = ? [pid 6223] <... exit_group resumed>) = ? [pid 6225] <... bpf resumed>) = 4 [pid 6222] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6222, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6225] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6223] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6224] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6223, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6224, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6227 attached ./strace-static-x86_64: Process 6226 attached [pid 5849] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6228 attached [pid 6227] set_robust_list(0x55556540f660, 24 [pid 6226] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6226 [pid 6227] <... set_robust_list resumed>) = 0 [pid 6228] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6227 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6228 [pid 6228] <... set_robust_list resumed>) = 0 [pid 6227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6226] <... set_robust_list resumed>) = 0 [pid 6225] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6227] <... prctl resumed>) = 0 [pid 6226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6227] setpgid(0, 0 [pid 6225] exit_group(0./strace-static-x86_64: Process 6229 attached [pid 6228] <... prctl resumed>) = 0 [pid 6227] <... setpgid resumed>) = 0 [pid 6226] <... prctl resumed>) = 0 [pid 6228] setpgid(0, 0 [pid 6229] set_robust_list(0x55556540f660, 24 [pid 6228] <... setpgid resumed>) = 0 [pid 6225] <... exit_group resumed>) = ? [pid 6229] <... set_robust_list resumed>) = 0 [pid 6228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6226] setpgid(0, 0 [pid 6229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6228] <... openat resumed>) = 3 [pid 6229] <... prctl resumed>) = 0 [pid 6229] setpgid(0, 0 [pid 6228] write(3, "1000", 4) = 4 [pid 6227] <... openat resumed>) = 3 [pid 6226] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6229 [pid 6227] write(3, "1000", 4 [pid 6229] <... setpgid resumed>) = 0 [pid 6228] close(3 [pid 6227] <... write resumed>) = 4 [pid 6226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6225] +++ exited with 0 +++ [pid 6229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6228] <... close resumed>) = 0 [pid 6229] <... openat resumed>) = 3 [pid 6228] write(1, "executing program\n", 18executing program [pid 6227] close(3 [pid 6226] <... openat resumed>) = 3 [pid 6229] write(3, "1000", 4 [pid 6228] <... write resumed>) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6225, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6226] write(3, "1000", 4 [pid 6227] <... close resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6227] write(1, "executing program\n", 18 [pid 6226] <... write resumed>) = 4 [pid 6227] <... write resumed>) = 18 [pid 6226] close(3 [pid 6229] <... write resumed>) = 4 [pid 6228] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6227] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6226] <... close resumed>) = 0 [pid 6229] close(3 [pid 6228] <... bpf resumed>) = 3 [pid 6229] <... close resumed>) = 0 [pid 6228] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6227] <... bpf resumed>) = 3 [pid 6226] write(1, "executing program\n", 18executing program [pid 6229] write(1, "executing program\n", 18 [pid 6228] <... bpf resumed>) = 4 [pid 6227] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6226] <... write resumed>) = 18 [pid 6229] <... write resumed>) = 18 [pid 6228] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6226] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6229] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6227] <... bpf resumed>) = 4 [pid 6226] <... bpf resumed>) = 3 [pid 6229] <... bpf resumed>) = 3 [pid 6228] <... bpf resumed>) = 5 [pid 6227] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6226] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6229] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6227] <... bpf resumed>) = 5 [pid 6229] <... bpf resumed>) = 4 [pid 6228] exit_group(0 [pid 6227] exit_group(0 [pid 6226] <... bpf resumed>) = 4 [pid 6229] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6228] <... exit_group resumed>) = ? [pid 6227] <... exit_group resumed>) = ? [pid 6226] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6230 attached [pid 6230] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6230 [pid 6230] <... set_robust_list resumed>) = 0 [pid 6230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6230] setpgid(0, 0) = 0 [pid 6230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6230] write(3, "1000", 4) = 4 [pid 6230] close(3executing program ) = 0 [pid 6230] write(1, "executing program\n", 18) = 18 [pid 6230] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6230] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6230] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6229] <... bpf resumed>) = 5 [pid 6228] +++ exited with 0 +++ [pid 6227] +++ exited with 0 +++ [pid 6226] <... bpf resumed>) = 5 [pid 6230] exit_group(0 [pid 6229] exit_group(0 [pid 6226] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6227, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6230] <... exit_group resumed>) = ? [pid 6226] <... exit_group resumed>) = ? [pid 6230] +++ exited with 0 +++ [pid 6229] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6228, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6230, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6231 attached [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6231] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6232 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6231 [pid 6232] set_robust_list(0x55556540f660, 24 [pid 6231] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6232 [pid 6232] <... set_robust_list resumed>) = 0 [pid 6231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6226] +++ exited with 0 +++ [pid 6231] <... prctl resumed>) = 0 [pid 6231] setpgid(0, 0) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6226, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6232] <... prctl resumed>) = 0 [pid 6231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6232] setpgid(0, 0./strace-static-x86_64: Process 6233 attached ./strace-static-x86_64: Process 6234 attached ) = 0 [pid 6229] +++ exited with 0 +++ [pid 6233] set_robust_list(0x55556540f660, 24 [pid 6234] set_robust_list(0x55556540f660, 24 [pid 6233] <... set_robust_list resumed>) = 0 [pid 6232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6231] <... openat resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6229, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6234] <... set_robust_list resumed>) = 0 [pid 6234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6232] <... openat resumed>) = 3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6234] <... prctl resumed>) = 0 [pid 6233] <... prctl resumed>) = 0 [pid 6234] setpgid(0, 0 [pid 6232] write(3, "1000", 4 [pid 6231] write(3, "1000", 4 [pid 6233] setpgid(0, 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6234 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6233 [pid 6234] <... setpgid resumed>) = 0 [pid 6233] <... setpgid resumed>) = 0 [pid 6232] <... write resumed>) = 4 [pid 6231] <... write resumed>) = 4 [pid 6232] close(3 [pid 6231] close(3 [pid 6234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6232] <... close resumed>) = 0 [pid 6231] <... close resumed>) = 0 executing program executing program [pid 6233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6232] write(1, "executing program\n", 18 [pid 6231] write(1, "executing program\n", 18 [pid 6232] <... write resumed>) = 18 [pid 6231] <... write resumed>) = 18 [pid 6233] <... openat resumed>) = 3 [pid 6234] <... openat resumed>) = 3 [pid 6232] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6231] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6234] write(3, "1000", 4 [pid 6233] write(3, "1000", 4 [pid 6232] <... bpf resumed>) = 3 [pid 6231] <... bpf resumed>) = 3 [pid 6234] <... write resumed>) = 4 [pid 6233] <... write resumed>) = 4 [pid 6233] close(3 [pid 6234] close(3 [pid 6231] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6234] <... close resumed>) = 0 [pid 6233] <... close resumed>) = 0 executing program executing program [pid 6234] write(1, "executing program\n", 18 [pid 6233] write(1, "executing program\n", 18 [pid 6232] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6231] <... bpf resumed>) = 4 [pid 6234] <... write resumed>) = 18 [pid 6233] <... write resumed>) = 18 [pid 6232] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6232] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6231] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6234] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6233] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6234] <... bpf resumed>) = 3 [pid 6234] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6233] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6235 attached [pid 6234] <... bpf resumed>) = 4 [pid 6233] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6235] set_robust_list(0x55556540f660, 24 [pid 6234] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6235] <... set_robust_list resumed>) = 0 [pid 6235] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6233] <... bpf resumed>) = 4 [pid 6231] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6235 [pid 6235] <... prctl resumed>) = 0 [pid 6234] <... bpf resumed>) = 5 [pid 6231] exit_group(0 [pid 6234] exit_group(0 [pid 6231] <... exit_group resumed>) = ? [pid 6235] setpgid(0, 0 [pid 6234] <... exit_group resumed>) = ? [pid 6233] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6232] <... bpf resumed>) = 5 [pid 6231] +++ exited with 0 +++ [pid 6235] <... setpgid resumed>) = 0 [pid 6232] exit_group(0) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6231, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6234] +++ exited with 0 +++ [pid 6233] <... bpf resumed>) = 5 [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6235] <... openat resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6234, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6235] write(3, "1000", 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6233] exit_group(0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6235] <... write resumed>) = 4 ./strace-static-x86_64: Process 6236 attached [pid 6236] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6237 attached [pid 6235] close(3 [pid 6233] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6236 [pid 6237] set_robust_list(0x55556540f660, 24 [pid 6236] <... set_robust_list resumed>) = 0 [pid 6237] <... set_robust_list resumed>) = 0 [pid 6236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6236] <... prctl resumed>) = 0 [pid 6237] <... prctl resumed>) = 0 [pid 6236] setpgid(0, 0 [pid 6237] setpgid(0, 0) = 0 [pid 6236] <... setpgid resumed>) = 0 [pid 6235] <... close resumed>) = 0 [pid 6237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6235] write(1, "executing program\n", 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6237 [pid 6235] <... write resumed>) = 18 [pid 6237] <... openat resumed>) = 3 [pid 6236] <... openat resumed>) = 3 [pid 6235] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6236] write(3, "1000", 4 [pid 6237] write(3, "1000", 4 [pid 6236] <... write resumed>) = 4 [pid 6237] <... write resumed>) = 4 [pid 6236] close(3 [pid 6235] <... bpf resumed>) = 3 [pid 6237] close(3 [pid 6236] <... close resumed>) = 0 [pid 6237] <... close resumed>) = 0 [pid 6236] write(1, "executing program\n", 18executing program executing program [pid 6237] write(1, "executing program\n", 18 [pid 6236] <... write resumed>) = 18 [pid 6237] <... write resumed>) = 18 [pid 6236] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6237] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6235] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6237] <... bpf resumed>) = 3 [pid 6236] <... bpf resumed>) = 3 [pid 6237] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6236] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6235] <... bpf resumed>) = 4 [pid 6233] +++ exited with 0 +++ [pid 6232] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6232, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6233, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6235] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6237] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6236] <... bpf resumed>) = 4 [pid 6236] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6237] <... bpf resumed>) = 5 [pid 6236] <... bpf resumed>) = 5 [pid 6235] <... bpf resumed>) = 5 [pid 6237] exit_group(0 [pid 6236] exit_group(0 [pid 6237] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6239 attached ./strace-static-x86_64: Process 6238 attached [pid 6236] <... exit_group resumed>) = ? [pid 6235] exit_group(0 [pid 6239] set_robust_list(0x55556540f660, 24 [pid 6238] set_robust_list(0x55556540f660, 24 [pid 6239] <... set_robust_list resumed>) = 0 [pid 6238] <... set_robust_list resumed>) = 0 [pid 6237] +++ exited with 0 +++ [pid 6236] +++ exited with 0 +++ [pid 6235] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6239 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6238 [pid 6239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6236, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6237, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6239] <... prctl resumed>) = 0 [pid 6238] <... prctl resumed>) = 0 [pid 6239] setpgid(0, 0 [pid 6238] setpgid(0, 0 [pid 6239] <... setpgid resumed>) = 0 [pid 6238] <... setpgid resumed>) = 0 [pid 6239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6235] +++ exited with 0 +++ [pid 6239] <... openat resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6235, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6238] <... openat resumed>) = 3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6239] write(3, "1000", 4) = 4 [pid 6238] write(3, "1000", 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6239] close(3) = 0 [pid 6238] <... write resumed>) = 4 executing program [pid 6239] write(1, "executing program\n", 18 [pid 6238] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6239] <... write resumed>) = 18 [pid 6238] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6239] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6238] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 6241 attached [pid 6239] <... bpf resumed>) = 3 [pid 6238] <... write resumed>) = 18 ./strace-static-x86_64: Process 6242 attached ./strace-static-x86_64: Process 6240 attached [pid 6241] set_robust_list(0x55556540f660, 24 [pid 6239] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6238] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6240 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6241 [pid 6242] set_robust_list(0x55556540f660, 24 [pid 6241] <... set_robust_list resumed>) = 0 [pid 6240] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6242 [pid 6242] <... set_robust_list resumed>) = 0 [pid 6240] <... set_robust_list resumed>) = 0 [pid 6242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6239] <... bpf resumed>) = 4 [pid 6238] <... bpf resumed>) = 3 [pid 6242] <... prctl resumed>) = 0 [pid 6241] <... prctl resumed>) = 0 [pid 6240] <... prctl resumed>) = 0 [pid 6238] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6242] setpgid(0, 0 [pid 6241] setpgid(0, 0 [pid 6240] setpgid(0, 0 [pid 6239] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6238] <... bpf resumed>) = 4 [pid 6242] <... setpgid resumed>) = 0 [pid 6241] <... setpgid resumed>) = 0 [pid 6240] <... setpgid resumed>) = 0 [pid 6239] <... bpf resumed>) = 5 [pid 6238] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6239] exit_group(0 [pid 6238] <... bpf resumed>) = 5 [pid 6242] <... openat resumed>) = 3 [pid 6241] <... openat resumed>) = 3 [pid 6241] write(3, "1000", 4 [pid 6239] <... exit_group resumed>) = ? [pid 6238] exit_group(0 [pid 6242] write(3, "1000", 4 [pid 6241] <... write resumed>) = 4 [pid 6240] <... openat resumed>) = 3 [pid 6238] <... exit_group resumed>) = ? [pid 6242] <... write resumed>) = 4 [pid 6242] close(3 [pid 6240] write(3, "1000", 4 [pid 6242] <... close resumed>) = 0 executing program [pid 6242] write(1, "executing program\n", 18) = 18 [pid 6242] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6240] <... write resumed>) = 4 [pid 6242] <... bpf resumed>) = 3 [pid 6240] close(3 [pid 6239] +++ exited with 0 +++ [pid 6242] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6240] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6239, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6241] close(3) = 0 [pid 6240] write(1, "executing program\n", 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6241] write(1, "executing program\n", 18) = 18 executing program [pid 6241] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6242] <... bpf resumed>) = 4 [pid 6241] <... bpf resumed>) = 3 [pid 6240] <... write resumed>) = 18 [pid 6241] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6242] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6241] <... bpf resumed>) = 4 [pid 6240] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6241] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6240] <... bpf resumed>) = 3 [pid 6240] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6242] <... bpf resumed>) = 5 [pid 6240] <... bpf resumed>) = 4 [pid 6242] exit_group(0) = ? [pid 6240] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6243 attached [pid 6243] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6243 [pid 6243] <... set_robust_list resumed>) = 0 [pid 6243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6243] setpgid(0, 0) = 0 [pid 6241] <... bpf resumed>) = 5 [pid 6238] +++ exited with 0 +++ [pid 6240] <... bpf resumed>) = 5 [pid 6243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6242] +++ exited with 0 +++ [pid 6241] exit_group(0 [pid 6243] <... openat resumed>) = 3 [pid 6241] <... exit_group resumed>) = ? [pid 6243] write(3, "1000", 4 [pid 6240] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6238, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6242, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6240] <... exit_group resumed>) = ? [pid 6243] <... write resumed>) = 4 executing program [pid 6243] close(3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6243] <... close resumed>) = 0 [pid 6243] write(1, "executing program\n", 18) = 18 [pid 6243] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6243] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6243] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6244 attached [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6244] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6245 attached [pid 6241] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6244 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6241, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6245 [pid 6245] set_robust_list(0x55556540f660, 24 [pid 6244] <... set_robust_list resumed>) = 0 [pid 6240] +++ exited with 0 +++ [pid 6245] <... set_robust_list resumed>) = 0 [pid 6244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6240, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6245] <... prctl resumed>) = 0 [pid 6244] <... prctl resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6245] setpgid(0, 0 [pid 6244] setpgid(0, 0./strace-static-x86_64: Process 6247 attached ./strace-static-x86_64: Process 6246 attached [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6246 [pid 6247] set_robust_list(0x55556540f660, 24 [pid 6246] set_robust_list(0x55556540f660, 24 [pid 6243] <... bpf resumed>) = 5 [pid 6247] <... set_robust_list resumed>) = 0 [pid 6246] <... set_robust_list resumed>) = 0 [pid 6245] <... setpgid resumed>) = 0 [pid 6244] <... setpgid resumed>) = 0 [pid 6243] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6247 [pid 6247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6243] <... exit_group resumed>) = ? [pid 6247] <... prctl resumed>) = 0 [pid 6246] <... prctl resumed>) = 0 [pid 6245] <... openat resumed>) = 3 [pid 6244] <... openat resumed>) = 3 [pid 6243] +++ exited with 0 +++ [pid 6247] setpgid(0, 0 [pid 6245] write(3, "1000", 4 [pid 6246] setpgid(0, 0 [pid 6244] write(3, "1000", 4 [pid 6247] <... setpgid resumed>) = 0 [pid 6246] <... setpgid resumed>) = 0 [pid 6245] <... write resumed>) = 4 [pid 6244] <... write resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6243, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6245] close(3 [pid 6244] close(3 [pid 6246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6245] <... close resumed>) = 0 [pid 6244] <... close resumed>) = 0 executing program executing program [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6245] write(1, "executing program\n", 18 [pid 6244] write(1, "executing program\n", 18 [pid 6247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6246] <... openat resumed>) = 3 [pid 6245] <... write resumed>) = 18 [pid 6244] <... write resumed>) = 18 [pid 6247] <... openat resumed>) = 3 [pid 6245] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6244] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6247] write(3, "1000", 4 [pid 6246] write(3, "1000", 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6247] <... write resumed>) = 4 [pid 6246] <... write resumed>) = 4 [pid 6247] close(3 [pid 6246] close(3) = 0 [pid 6245] <... bpf resumed>) = 3 [pid 6244] <... bpf resumed>) = 3 [pid 6245] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6244] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6247] <... close resumed>) = 0 [pid 6246] write(1, "executing program\n", 18executing program [pid 6245] <... bpf resumed>) = 4 [pid 6244] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6247] write(1, "executing program\n", 18 [pid 6246] <... write resumed>) = 18 [pid 6244] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6248 attached [pid 6247] <... write resumed>) = 18 [pid 6246] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6245] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6244] <... bpf resumed>) = 5 [pid 6248] set_robust_list(0x55556540f660, 24 [pid 6247] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6246] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6248 [pid 6248] <... set_robust_list resumed>) = 0 [pid 6245] <... bpf resumed>) = 5 [pid 6244] exit_group(0 [pid 6248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6247] <... bpf resumed>) = 3 [pid 6246] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6244] <... exit_group resumed>) = ? [pid 6248] <... prctl resumed>) = 0 [pid 6247] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6246] <... bpf resumed>) = 4 [pid 6245] exit_group(0 [pid 6248] setpgid(0, 0 [pid 6245] <... exit_group resumed>) = ? [pid 6247] <... bpf resumed>) = 4 [pid 6246] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6248] <... setpgid resumed>) = 0 [pid 6248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6247] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6248] <... openat resumed>) = 3 [pid 6248] write(3, "1000", 4) = 4 [pid 6247] <... bpf resumed>) = 5 [pid 6246] <... bpf resumed>) = 5 [pid 6245] +++ exited with 0 +++ [pid 6244] +++ exited with 0 +++ [pid 6248] close(3 [pid 6247] exit_group(0 [pid 6248] <... close resumed>) = 0 executing program [pid 6248] write(1, "executing program\n", 18) = 18 [pid 6248] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6246] exit_group(0 [pid 6248] <... bpf resumed>) = 3 [pid 6247] <... exit_group resumed>) = ? [pid 6246] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6244, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6248] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6248] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6247] +++ exited with 0 +++ [pid 6246] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6246, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6247, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5845] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6249 attached [pid 6249] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6250 attached ) = 0 ./strace-static-x86_64: Process 6251 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6249] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6252 attached [pid 6251] set_robust_list(0x55556540f660, 24 [pid 6250] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6250 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6249 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6251 [pid 6251] <... set_robust_list resumed>) = 0 [pid 6250] <... set_robust_list resumed>) = 0 [pid 6252] set_robust_list(0x55556540f660, 24 [pid 6250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6249] <... prctl resumed>) = 0 [pid 6252] <... set_robust_list resumed>) = 0 [pid 6251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6249] setpgid(0, 0 [pid 6252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6251] <... prctl resumed>) = 0 [pid 6250] <... prctl resumed>) = 0 [pid 6249] <... setpgid resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6252 [pid 6252] <... prctl resumed>) = 0 [pid 6251] setpgid(0, 0 [pid 6250] setpgid(0, 0 [pid 6249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6252] setpgid(0, 0 [pid 6251] <... setpgid resumed>) = 0 [pid 6250] <... setpgid resumed>) = 0 [pid 6252] <... setpgid resumed>) = 0 [pid 6251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6249] <... openat resumed>) = 3 [pid 6248] <... bpf resumed>) = 5 [pid 6252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6251] <... openat resumed>) = 3 [pid 6249] write(3, "1000", 4) = 4 [pid 6251] write(3, "1000", 4 [pid 6252] <... openat resumed>) = 3 [pid 6251] <... write resumed>) = 4 [pid 6250] <... openat resumed>) = 3 [pid 6249] close(3 [pid 6248] exit_group(0 [pid 6251] close(3 [pid 6249] <... close resumed>) = 0 [pid 6251] <... close resumed>) = 0 [pid 6250] write(3, "1000", 4 [pid 6252] write(3, "1000", 4executing program [pid 6249] write(1, "executing program\n", 18 [pid 6248] <... exit_group resumed>) = ? [pid 6252] <... write resumed>) = 4 [pid 6251] write(1, "executing program\n", 18 [pid 6250] <... write resumed>) = 4 [pid 6249] <... write resumed>) = 18 [pid 6252] close(3executing program [pid 6250] close(3 [pid 6249] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6251] <... write resumed>) = 18 [pid 6250] <... close resumed>) = 0 [pid 6250] write(1, "executing program\n", 18executing program [pid 6252] <... close resumed>) = 0 [pid 6251] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6250] <... write resumed>) = 18 [pid 6249] <... bpf resumed>) = 3 [pid 6252] write(1, "executing program\n", 18 [pid 6250] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6251] <... bpf resumed>) = 3 [pid 6248] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6248, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6252] <... write resumed>) = 18 [pid 6249] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6252] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6251] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6250] <... bpf resumed>) = 3 [pid 6252] <... bpf resumed>) = 3 [pid 6249] <... bpf resumed>) = 4 [pid 6249] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6250] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6251] <... bpf resumed>) = 4 [pid 6252] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6250] <... bpf resumed>) = 4 [pid 6251] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6250] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6249] <... bpf resumed>) = 5 [pid 6252] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6249] exit_group(0 [pid 6252] <... bpf resumed>) = 5 [pid 6251] <... bpf resumed>) = 5 [pid 6250] <... bpf resumed>) = 5 [pid 6249] <... exit_group resumed>) = ? [pid 6252] exit_group(0 [pid 6251] exit_group(0 [pid 6250] exit_group(0 [pid 6249] +++ exited with 0 +++ [pid 6251] <... exit_group resumed>) = ? [pid 6250] <... exit_group resumed>) = ? [pid 6252] <... exit_group resumed>) = ? [pid 6250] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6249, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6250, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6254 attached [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6254] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6254 [pid 6254] <... set_robust_list resumed>) = 0 [pid 6254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6254] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6255 attached [pid 6254] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6254] <... setpgid resumed>) = 0 [pid 6255] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6255 [pid 6254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6256 ./strace-static-x86_64: Process 6256 attached [pid 6256] set_robust_list(0x55556540f660, 24 [pid 6255] <... set_robust_list resumed>) = 0 [pid 6254] <... openat resumed>) = 3 [pid 6252] +++ exited with 0 +++ [pid 6256] <... set_robust_list resumed>) = 0 [pid 6255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6254] write(3, "1000", 4 [pid 6251] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6252, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6255] <... prctl resumed>) = 0 [pid 6254] <... write resumed>) = 4 [pid 6256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6254] close(3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6255] setpgid(0, 0 [pid 6254] <... close resumed>) = 0 executing program [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6256] <... prctl resumed>) = 0 [pid 6255] <... setpgid resumed>) = 0 [pid 6254] write(1, "executing program\n", 18 [pid 6256] setpgid(0, 0) = 0 [pid 6255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6254] <... write resumed>) = 18 [pid 6254] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6255] <... openat resumed>) = 3 executing program [pid 6255] write(3, "1000", 4 [pid 6254] <... bpf resumed>) = 3 [pid 6255] <... write resumed>) = 4 [pid 6255] close(3) = 0 [pid 6255] write(1, "executing program\n", 18) = 18 [pid 6255] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6256] <... openat resumed>) = 3 [pid 6254] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6256] write(3, "1000", 4 [pid 6255] <... bpf resumed>) = 3 [pid 6255] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6256] <... write resumed>) = 4 [pid 6255] <... bpf resumed>) = 4 [pid 6254] <... bpf resumed>) = 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6256] close(3 [pid 6255] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6254] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6256] <... close resumed>) = 0 [pid 6255] <... bpf resumed>) = 5 [pid 6254] <... bpf resumed>) = 5 [pid 6256] write(1, "executing program\n", 18executing program ) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6257 attached [pid 6256] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6257] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6258 attached ) = 0 [pid 6256] <... bpf resumed>) = 3 [pid 6255] exit_group(0 [pid 6254] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6257 [pid 6257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6256] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6255] <... exit_group resumed>) = ? [pid 6254] <... exit_group resumed>) = ? [pid 6258] set_robust_list(0x55556540f660, 24 [pid 6257] <... prctl resumed>) = 0 [pid 6256] <... bpf resumed>) = 4 [pid 6255] +++ exited with 0 +++ [pid 6254] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6258 [pid 6258] <... set_robust_list resumed>) = 0 [pid 6257] setpgid(0, 0 [pid 6256] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6254, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6257] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6255, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6258] <... prctl resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6258] setpgid(0, 0) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6257] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6259 attached [pid 6259] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6260 attached [pid 6258] <... openat resumed>) = 3 [pid 6257] write(3, "1000", 4 [pid 6256] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6259 [pid 6258] write(3, "1000", 4) = 4 [pid 6257] <... write resumed>) = 4 [pid 6256] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6260 [pid 6258] close(3 [pid 6257] close(3 [pid 6260] set_robust_list(0x55556540f660, 24 [pid 6259] <... set_robust_list resumed>) = 0 [pid 6258] <... close resumed>) = 0 [pid 6257] <... close resumed>) = 0 [pid 6256] <... exit_group resumed>) = ? [pid 6260] <... set_robust_list resumed>) = 0 [pid 6259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6258] write(1, "executing program\n", 18 [pid 6257] write(1, "executing program\n", 18 [pid 6260] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6259] <... prctl resumed>) = 0 [pid 6260] <... prctl resumed>) = 0 [pid 6259] setpgid(0, 0 [pid 6260] setpgid(0, 0 [pid 6259] <... setpgid resumed>) = 0 [pid 6260] <... setpgid resumed>) = 0 [pid 6259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6256] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6256, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program executing program [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6258] <... write resumed>) = 18 [pid 6257] <... write resumed>) = 18 [pid 6259] <... openat resumed>) = 3 [pid 6258] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6257] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6258] <... bpf resumed>) = 3 [pid 6260] <... openat resumed>) = 3 [pid 6259] write(3, "1000", 4 [pid 6258] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6257] <... bpf resumed>) = 3 [pid 6260] write(3, "1000", 4 [pid 6259] <... write resumed>) = 4 [pid 6260] <... write resumed>) = 4 [pid 6259] close(3 [pid 6257] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6260] close(3executing program executing program [pid 6259] <... close resumed>) = 0 [pid 6258] <... bpf resumed>) = 4 [pid 6260] <... close resumed>) = 0 [pid 6259] write(1, "executing program\n", 18 [pid 6260] write(1, "executing program\n", 18 [pid 6259] <... write resumed>) = 18 [pid 6260] <... write resumed>) = 18 [pid 6259] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6260] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6259] <... bpf resumed>) = 3 [pid 6258] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6257] <... bpf resumed>) = 4 [pid 6260] <... bpf resumed>) = 3 [pid 6259] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6257] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6260] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6260] <... bpf resumed>) = 4 [pid 6259] <... bpf resumed>) = 4 [pid 6260] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6259] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6261 attached , child_tidptr=0x55556540f650) = 6261 [pid 6261] set_robust_list(0x55556540f660, 24 [pid 6260] <... bpf resumed>) = 5 [pid 6259] <... bpf resumed>) = 5 [pid 6258] <... bpf resumed>) = 5 [pid 6257] <... bpf resumed>) = 5 [pid 6261] <... set_robust_list resumed>) = 0 [pid 6260] exit_group(0 [pid 6259] exit_group(0 [pid 6258] exit_group(0 [pid 6260] <... exit_group resumed>) = ? [pid 6259] <... exit_group resumed>) = ? [pid 6261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6260] +++ exited with 0 +++ [pid 6259] +++ exited with 0 +++ [pid 6258] <... exit_group resumed>) = ? [pid 6257] exit_group(0 [pid 6261] <... prctl resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6259, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6261] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6260, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6261] <... setpgid resumed>) = 0 [pid 6257] <... exit_group resumed>) = ? [pid 6261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6261] write(3, "1000", 4) = 4 [pid 6261] close(3executing program ) = 0 [pid 6261] write(1, "executing program\n", 18) = 18 [pid 6261] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6261] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6261] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6262 attached [pid 6262] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6263 attached [pid 6258] +++ exited with 0 +++ [pid 6257] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6262 [pid 6263] set_robust_list(0x55556540f660, 24) = 0 [pid 6262] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6263 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6258, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6257, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6263] <... prctl resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6265 attached ./strace-static-x86_64: Process 6264 attached [pid 6262] setpgid(0, 0) = 0 [pid 6265] set_robust_list(0x55556540f660, 24 [pid 6264] set_robust_list(0x55556540f660, 24 [pid 6263] setpgid(0, 0 [pid 6262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6265] <... set_robust_list resumed>) = 0 [pid 6264] <... set_robust_list resumed>) = 0 [pid 6263] <... setpgid resumed>) = 0 [pid 6262] <... openat resumed>) = 3 [pid 6261] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6265 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6264 [pid 6262] write(3, "1000", 4 [pid 6263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6262] <... write resumed>) = 4 executing program [pid 6263] <... openat resumed>) = 3 [pid 6262] close(3 [pid 6261] exit_group(0 [pid 6262] <... close resumed>) = 0 [pid 6262] write(1, "executing program\n", 18 [pid 6265] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6264] <... prctl resumed>) = 0 [pid 6263] write(3, "1000", 4 [pid 6262] <... write resumed>) = 18 [pid 6261] <... exit_group resumed>) = ? [pid 6265] <... prctl resumed>) = 0 [pid 6264] setpgid(0, 0 [pid 6263] <... write resumed>) = 4 [pid 6262] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6265] setpgid(0, 0 [pid 6264] <... setpgid resumed>) = 0 [pid 6263] close(3) = 0 [pid 6263] write(1, "executing program\n", 18) = 18 [pid 6262] <... bpf resumed>) = 3 [pid 6265] <... setpgid resumed>) = 0 [pid 6264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6263] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6262] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6263] <... bpf resumed>) = 3 [pid 6265] <... openat resumed>) = 3 [pid 6264] <... openat resumed>) = 3 [pid 6263] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6262] <... bpf resumed>) = 4 [pid 6261] +++ exited with 0 +++ [pid 6265] write(3, "1000", 4 [pid 6264] write(3, "1000", 4 [pid 6262] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6263] <... bpf resumed>) = 4 [pid 6265] <... write resumed>) = 4 [pid 6264] <... write resumed>) = 4 [pid 6263] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6261, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6265] close(3 [pid 6264] close(3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6264] <... close resumed>) = 0 [pid 6265] <... close resumed>) = 0 executing program executing program [pid 6265] write(1, "executing program\n", 18 [pid 6264] write(1, "executing program\n", 18 [pid 6265] <... write resumed>) = 18 [pid 6264] <... write resumed>) = 18 [pid 6265] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6264] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6265] <... bpf resumed>) = 3 [pid 6264] <... bpf resumed>) = 3 [pid 6265] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6264] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6265] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6264] <... bpf resumed>) = 4 [pid 6262] <... bpf resumed>) = 5 [pid 6262] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6263] <... bpf resumed>) = 5 [pid 6265] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6264] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6262] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6266 attached [pid 6265] <... bpf resumed>) = 5 [pid 6264] <... bpf resumed>) = 5 [pid 6263] exit_group(0 [pid 6265] exit_group(0 [pid 6266] set_robust_list(0x55556540f660, 24 [pid 6265] <... exit_group resumed>) = ? [pid 6264] exit_group(0 [pid 6263] <... exit_group resumed>) = ? [pid 6262] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6266 [pid 6266] <... set_robust_list resumed>) = 0 [pid 6266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6262, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6266] <... prctl resumed>) = 0 [pid 6266] setpgid(0, 0 [pid 6264] <... exit_group resumed>) = ? [pid 6263] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 6266] <... setpgid resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6265] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 6268 attached ./strace-static-x86_64: Process 6267 attached [pid 6266] write(3, "1000", 4) = 4 [pid 6266] close(3) = 0 [pid 6266] write(1, "executing program\n", 18 [pid 6264] +++ exited with 0 +++ [pid 6268] set_robust_list(0x55556540f660, 24 [pid 6266] <... write resumed>) = 18 [pid 6268] <... set_robust_list resumed>) = 0 [pid 6266] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6268 [pid 6268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6267] set_robust_list(0x55556540f660, 24 [pid 6266] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6267 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6267] <... set_robust_list resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6268] <... prctl resumed>) = 0 [pid 6267] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6266] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6268] setpgid(0, 0 [pid 6267] <... prctl resumed>) = 0 [pid 6266] <... bpf resumed>) = 4 [pid 6268] <... setpgid resumed>) = 0 [pid 6267] setpgid(0, 0) = 0 [pid 6268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6266] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6268] <... openat resumed>) = 3 [pid 6266] <... bpf resumed>) = 5 [pid 6268] write(3, "1000", 4executing program ) = 4 [pid 6268] close(3 [pid 6267] <... openat resumed>) = 3 [pid 6268] <... close resumed>) = 0 [pid 6268] write(1, "executing program\n", 18) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6268] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6267] write(3, "1000", 4) = 4 [pid 6266] exit_group(0 [pid 6267] close(3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6267] <... close resumed>) = 0 ./strace-static-x86_64: Process 6270 attached ./strace-static-x86_64: Process 6269 attached [pid 6268] <... bpf resumed>) = 3 executing program [pid 6267] write(1, "executing program\n", 18 [pid 6266] <... exit_group resumed>) = ? [pid 6270] set_robust_list(0x55556540f660, 24 [pid 6269] set_robust_list(0x55556540f660, 24 [pid 6268] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6267] <... write resumed>) = 18 [pid 6266] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6269 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6270 [pid 6270] <... set_robust_list resumed>) = 0 [pid 6269] <... set_robust_list resumed>) = 0 [pid 6268] <... bpf resumed>) = 4 [pid 6267] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6266, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6268] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6267] <... bpf resumed>) = 3 [pid 6270] <... prctl resumed>) = 0 [pid 6269] <... prctl resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6267] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6270] setpgid(0, 0 [pid 6269] setpgid(0, 0 [pid 6268] <... bpf resumed>) = 5 [pid 6269] <... setpgid resumed>) = 0 [pid 6270] <... setpgid resumed>) = 0 [pid 6269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6268] exit_group(0) = ? [pid 6270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6269] <... openat resumed>) = 3 [pid 6268] +++ exited with 0 +++ [pid 6267] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6269] write(3, "1000", 4) = 4 [pid 6270] <... openat resumed>) = 3 [pid 6269] close(3executing program [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6268, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6269] <... close resumed>) = 0 [pid 6269] write(1, "executing program\n", 18) = 18 [pid 6269] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6271 attached [pid 6270] write(3, "1000", 4 [pid 6267] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6270] <... write resumed>) = 4 [pid 6270] close(3 [pid 6271] set_robust_list(0x55556540f660, 24 [pid 6270] <... close resumed>) = 0 [pid 6269] <... bpf resumed>) = 3 [pid 6271] <... set_robust_list resumed>) = 0 [pid 6269] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6267] <... bpf resumed>) = 5 [pid 6271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6270] write(1, "executing program\n", 18 [pid 6269] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6271 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6271] <... prctl resumed>) = 0 executing program [pid 6271] setpgid(0, 0 [pid 6270] <... write resumed>) = 18 [pid 6271] <... setpgid resumed>) = 0 [pid 6271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6269] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6272 attached [pid 6270] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6269] <... bpf resumed>) = 5 [pid 6267] exit_group(0 [pid 6270] <... bpf resumed>) = 3 [pid 6272] set_robust_list(0x55556540f660, 24 [pid 6271] <... openat resumed>) = 3 [pid 6270] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6269] exit_group(0 [pid 6267] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6272 [pid 6272] <... set_robust_list resumed>) = 0 [pid 6271] write(3, "1000", 4 [pid 6272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6270] <... bpf resumed>) = 4 [pid 6269] <... exit_group resumed>) = ? [pid 6272] <... prctl resumed>) = 0 [pid 6271] <... write resumed>) = 4 [pid 6272] setpgid(0, 0 [pid 6271] close(3 [pid 6272] <... setpgid resumed>) = 0 [pid 6271] <... close resumed>) = 0 [pid 6270] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 6271] write(1, "executing program\n", 18 [pid 6272] <... openat resumed>) = 3 [pid 6271] <... write resumed>) = 18 [pid 6271] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6272] write(3, "1000", 4 [pid 6271] <... bpf resumed>) = 3 [pid 6271] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6272] <... write resumed>) = 4 [pid 6271] <... bpf resumed>) = 4 [pid 6272] close(3 [pid 6271] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6272] <... close resumed>) = 0 [pid 6272] write(1, "executing program\n", 18executing program ) = 18 [pid 6269] +++ exited with 0 +++ [pid 6267] +++ exited with 0 +++ [pid 6272] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6272] <... bpf resumed>) = 3 [pid 6272] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6272] <... bpf resumed>) = 4 [pid 6271] <... bpf resumed>) = 5 [pid 6270] <... bpf resumed>) = 5 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6267, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6271] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... restart_syscall resumed>) = 0 [pid 6272] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6271] <... exit_group resumed>) = ? [pid 6270] exit_group(0./strace-static-x86_64: Process 6273 attached [pid 6272] <... bpf resumed>) = 5 [pid 6271] +++ exited with 0 +++ [pid 6270] <... exit_group resumed>) = ? [pid 6272] exit_group(0) = ? [pid 6273] set_robust_list(0x55556540f660, 24 [pid 6272] +++ exited with 0 +++ [pid 6273] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6273 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6272, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6270] +++ exited with 0 +++ ./strace-static-x86_64: Process 6274 attached [pid 6273] <... prctl resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6271, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6270, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6273] setpgid(0, 0 [pid 6274] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6274 [pid 6274] <... set_robust_list resumed>) = 0 [pid 6273] <... setpgid resumed>) = 0 [pid 6273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6273] <... openat resumed>) = 3 [pid 6274] <... prctl resumed>) = 0 [pid 6273] write(3, "1000", 4 [pid 6274] setpgid(0, 0 [pid 6273] <... write resumed>) = 4 [pid 6274] <... setpgid resumed>) = 0 [pid 6273] close(3) = 0 [pid 6274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6273] write(1, "executing program\n", 18) = 18 [pid 6273] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6274] <... openat resumed>) = 3 [pid 6274] write(3, "1000", 4) = 4 [pid 6274] close(3executing program ) = 0 [pid 6274] write(1, "executing program\n", 18) = 18 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6274] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6275 attached [pid 6274] <... bpf resumed>) = 3 [pid 6273] <... bpf resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6274] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6275] set_robust_list(0x55556540f660, 24 [pid 6273] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6275] <... set_robust_list resumed>) = 0 [pid 6274] <... bpf resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6275 [pid 6275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6274] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6276 attached [pid 6273] <... bpf resumed>) = 4 [pid 6275] <... prctl resumed>) = 0 [pid 6276] set_robust_list(0x55556540f660, 24 [pid 6275] setpgid(0, 0 [pid 6274] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6276 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6276] <... set_robust_list resumed>) = 0 [pid 6275] <... setpgid resumed>) = 0 [pid 6274] exit_group(0 [pid 6273] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6277 attached [pid 6276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6274] <... exit_group resumed>) = ? [pid 6273] <... bpf resumed>) = 5 [pid 6277] set_robust_list(0x55556540f660, 24 [pid 6276] <... prctl resumed>) = 0 [pid 6275] <... openat resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6277 [pid 6277] <... set_robust_list resumed>) = 0 [pid 6277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6276] setpgid(0, 0 [pid 6275] write(3, "1000", 4 [pid 6273] exit_group(0 [pid 6277] <... prctl resumed>) = 0 [pid 6276] <... setpgid resumed>) = 0 [pid 6275] <... write resumed>) = 4 [pid 6277] setpgid(0, 0) = 0 [pid 6276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6275] close(3 [pid 6273] <... exit_group resumed>) = ? executing program [pid 6277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6276] <... openat resumed>) = 3 [pid 6275] <... close resumed>) = 0 [pid 6275] write(1, "executing program\n", 18 [pid 6276] write(3, "1000", 4 [pid 6275] <... write resumed>) = 18 [pid 6276] <... write resumed>) = 4 [pid 6277] <... openat resumed>) = 3 [pid 6276] close(3 [pid 6275] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6277] write(3, "1000", 4 [pid 6276] <... close resumed>) = 0 [pid 6275] <... bpf resumed>) = 3 [pid 6277] <... write resumed>) = 4 executing program [pid 6276] write(1, "executing program\n", 18 [pid 6275] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6277] close(3 [pid 6276] <... write resumed>) = 18 [pid 6277] <... close resumed>) = 0 [pid 6276] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6275] <... bpf resumed>) = 4 [pid 6277] write(1, "executing program\n", 18 [pid 6276] <... bpf resumed>) = 3 executing program [pid 6277] <... write resumed>) = 18 [pid 6276] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6275] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6277] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6277] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6276] <... bpf resumed>) = 4 [pid 6274] +++ exited with 0 +++ [pid 6277] <... bpf resumed>) = 4 [pid 6276] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6273] +++ exited with 0 +++ [pid 6277] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6274, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6279 attached ./strace-static-x86_64: Process 6278 attached [pid 6279] set_robust_list(0x55556540f660, 24 [pid 6278] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6278 [pid 6279] <... set_robust_list resumed>) = 0 [pid 6278] <... set_robust_list resumed>) = 0 [pid 6277] <... bpf resumed>) = 5 [pid 6276] <... bpf resumed>) = 5 [pid 6275] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6279 [pid 6279] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6278] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6277] exit_group(0 [pid 6276] exit_group(0 [pid 6275] exit_group(0 [pid 6279] <... prctl resumed>) = 0 [pid 6278] <... prctl resumed>) = 0 [pid 6277] <... exit_group resumed>) = ? [pid 6276] <... exit_group resumed>) = ? [pid 6275] <... exit_group resumed>) = ? [pid 6279] setpgid(0, 0 [pid 6278] setpgid(0, 0 [pid 6277] +++ exited with 0 +++ [pid 6276] +++ exited with 0 +++ [pid 6275] +++ exited with 0 +++ [pid 6279] <... setpgid resumed>) = 0 [pid 6278] <... setpgid resumed>) = 0 [pid 6279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6277, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6276, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6275, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6279] <... openat resumed>) = 3 [pid 6278] <... openat resumed>) = 3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6278] write(3, "1000", 4) = 4 [pid 6278] close(3 [pid 6279] write(3, "1000", 4 [pid 6278] <... close resumed>) = 0 executing program [pid 6279] <... write resumed>) = 4 [pid 6278] write(1, "executing program\n", 18 [pid 6279] close(3 [pid 6278] <... write resumed>) = 18 [pid 6279] <... close resumed>) = 0 [pid 6278] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6279] write(1, "executing program\n", 18executing program [pid 6278] <... bpf resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6279] <... write resumed>) = 18 [pid 6278] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6279] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6278] <... bpf resumed>) = 4 [pid 6279] <... bpf resumed>) = 3 [pid 6278] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6280 attached [pid 6279] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6278] <... bpf resumed>) = 5 [pid 6279] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6280] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6281 attached [pid 6279] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6278] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6280 [pid 6281] set_robust_list(0x55556540f660, 24 [pid 6279] <... bpf resumed>) = 5 [pid 6278] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6282 attached [pid 6280] <... set_robust_list resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6281 [pid 6282] set_robust_list(0x55556540f660, 24 [pid 6281] <... set_robust_list resumed>) = 0 [pid 6280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6279] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6282 [pid 6282] <... set_robust_list resumed>) = 0 [pid 6280] <... prctl resumed>) = 0 [pid 6282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6280] setpgid(0, 0 [pid 6279] <... exit_group resumed>) = ? [pid 6282] <... prctl resumed>) = 0 [pid 6280] <... setpgid resumed>) = 0 [pid 6281] <... prctl resumed>) = 0 [pid 6281] setpgid(0, 0) = 0 [pid 6282] setpgid(0, 0 [pid 6281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6282] <... setpgid resumed>) = 0 [pid 6281] <... openat resumed>) = 3 [pid 6281] write(3, "1000", 4) = 4 [pid 6281] close(3executing program ) = 0 [pid 6281] write(1, "executing program\n", 18) = 18 [pid 6281] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6281] <... bpf resumed>) = 3 [pid 6281] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6282] <... openat resumed>) = 3 [pid 6280] <... openat resumed>) = 3 [pid 6279] +++ exited with 0 +++ [pid 6278] +++ exited with 0 +++ [pid 6282] write(3, "1000", 4 [pid 6280] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6279, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6278, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6281] <... bpf resumed>) = 4 [pid 6282] <... write resumed>) = 4 [pid 6281] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6280] <... write resumed>) = 4 [pid 6282] close(3 [pid 6281] <... bpf resumed>) = 5 [pid 6280] close(3 [pid 6282] <... close resumed>) = 0 [pid 6280] <... close resumed>) = 0 executing program executing program [pid 6282] write(1, "executing program\n", 18 [pid 6280] write(1, "executing program\n", 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6282] <... write resumed>) = 18 [pid 6280] <... write resumed>) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6282] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6280] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6282] <... bpf resumed>) = 3 [pid 6282] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6280] <... bpf resumed>) = 3 [pid 6281] exit_group(0./strace-static-x86_64: Process 6283 attached ) = ? ./strace-static-x86_64: Process 6284 attached [pid 6282] <... bpf resumed>) = 4 [pid 6280] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6283 [pid 6283] set_robust_list(0x55556540f660, 24 [pid 6282] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6281] +++ exited with 0 +++ [pid 6280] <... bpf resumed>) = 4 [pid 6283] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6284 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6281, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6280] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6284] set_robust_list(0x55556540f660, 24) = 0 [pid 6283] <... prctl resumed>) = 0 [pid 6284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6283] setpgid(0, 0) = 0 [pid 6284] <... prctl resumed>) = 0 [pid 6283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... restart_syscall resumed>) = 0 [pid 6284] setpgid(0, 0) = 0 [pid 6283] <... openat resumed>) = 3 [pid 6284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6283] write(3, "1000", 4) = 4 [pid 6283] close(3) = 0 executing program ./strace-static-x86_64: Process 6285 attached [pid 6284] <... openat resumed>) = 3 [pid 6283] write(1, "executing program\n", 18) = 18 [pid 6284] write(3, "1000", 4 [pid 6283] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6285] set_robust_list(0x55556540f660, 24 [pid 6284] <... write resumed>) = 4 [pid 6283] <... bpf resumed>) = 3 [pid 6282] <... bpf resumed>) = 5 [pid 6284] close(3 [pid 6283] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6285] <... set_robust_list resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6285 [pid 6285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6284] <... close resumed>) = 0 [pid 6283] <... bpf resumed>) = 4 [pid 6280] <... bpf resumed>) = 5 [pid 6285] <... prctl resumed>) = 0 executing program [pid 6284] write(1, "executing program\n", 18 [pid 6282] exit_group(0 [pid 6285] setpgid(0, 0 [pid 6284] <... write resumed>) = 18 [pid 6280] exit_group(0 [pid 6285] <... setpgid resumed>) = 0 [pid 6284] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6284] <... bpf resumed>) = 3 [pid 6283] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6282] <... exit_group resumed>) = ? [pid 6280] <... exit_group resumed>) = ? [pid 6285] <... openat resumed>) = 3 [pid 6284] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6283] <... bpf resumed>) = 5 [pid 6282] +++ exited with 0 +++ [pid 6283] exit_group(0) = ? [pid 6285] write(3, "1000", 4 [pid 6284] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6285] <... write resumed>) = 4 executing program [pid 6284] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6285] close(3) = 0 [pid 6285] write(1, "executing program\n", 18) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6286 attached [pid 6286] set_robust_list(0x55556540f660, 24 [pid 6285] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6286 [pid 6286] <... set_robust_list resumed>) = 0 [pid 6286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6285] <... bpf resumed>) = 3 [pid 6285] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6286] <... prctl resumed>) = 0 [pid 6286] setpgid(0, 0) = 0 [pid 6285] <... bpf resumed>) = 4 [pid 6283] +++ exited with 0 +++ [pid 6280] +++ exited with 0 +++ [pid 6286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6280, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6286] <... openat resumed>) = 3 [pid 6285] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6283, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6286] write(3, "1000", 4) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6286] close(3./strace-static-x86_64: Process 6287 attached ) = 0 executing program [pid 6286] write(1, "executing program\n", 18 [pid 6287] set_robust_list(0x55556540f660, 24 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6287 [pid 6286] <... write resumed>) = 18 [pid 6284] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6288 attached [pid 6287] <... set_robust_list resumed>) = 0 [pid 6286] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6285] <... bpf resumed>) = 5 [pid 6284] exit_group(0 [pid 6288] set_robust_list(0x55556540f660, 24 [pid 6287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6286] <... bpf resumed>) = 3 [pid 6285] exit_group(0 [pid 6284] <... exit_group resumed>) = ? [pid 6288] <... set_robust_list resumed>) = 0 [pid 6287] <... prctl resumed>) = 0 [pid 6285] <... exit_group resumed>) = ? [pid 6288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6287] setpgid(0, 0 [pid 6286] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6287] <... setpgid resumed>) = 0 [pid 6286] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6288 [pid 6288] <... prctl resumed>) = 0 [pid 6287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6288] setpgid(0, 0 [pid 6287] <... openat resumed>) = 3 [pid 6286] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6288] <... setpgid resumed>) = 0 [pid 6287] write(3, "1000", 4) = 4 [pid 6287] close(3 [pid 6288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6287] <... close resumed>) = 0 [pid 6285] +++ exited with 0 +++ [pid 6284] +++ exited with 0 +++ executing program [pid 6287] write(1, "executing program\n", 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6285, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6288] <... openat resumed>) = 3 [pid 6287] <... write resumed>) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6284, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6288] write(3, "1000", 4 [pid 6287] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6288] <... write resumed>) = 4 [pid 6288] close(3 [pid 6287] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6288] <... close resumed>) = 0 ./strace-static-x86_64: Process 6290 attached ./strace-static-x86_64: Process 6289 attached [pid 6287] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6290] set_robust_list(0x55556540f660, 24 [pid 6289] set_robust_list(0x55556540f660, 24executing program [pid 6288] write(1, "executing program\n", 18 [pid 6287] <... bpf resumed>) = 4 [pid 6289] <... set_robust_list resumed>) = 0 [pid 6288] <... write resumed>) = 18 [pid 6290] <... set_robust_list resumed>) = 0 [pid 6290] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6289] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6288] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6289] <... prctl resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6289 [pid 6288] <... bpf resumed>) = 3 [pid 6290] <... prctl resumed>) = 0 [pid 6287] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6290 [pid 6290] setpgid(0, 0 [pid 6289] setpgid(0, 0 [pid 6288] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6290] <... setpgid resumed>) = 0 [pid 6289] <... setpgid resumed>) = 0 [pid 6290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6288] <... bpf resumed>) = 4 [pid 6290] <... openat resumed>) = 3 [pid 6289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6288] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6287] <... bpf resumed>) = 5 [pid 6286] <... bpf resumed>) = 5 [pid 6289] <... openat resumed>) = 3 [pid 6290] write(3, "1000", 4 [pid 6289] write(3, "1000", 4 [pid 6288] <... bpf resumed>) = 5 [pid 6287] exit_group(0 [pid 6286] exit_group(0 [pid 6290] <... write resumed>) = 4 [pid 6289] <... write resumed>) = 4 [pid 6288] exit_group(0 [pid 6287] <... exit_group resumed>) = ? [pid 6286] <... exit_group resumed>) = ? [pid 6290] close(3 [pid 6289] close(3 [pid 6288] <... exit_group resumed>) = ? [pid 6287] +++ exited with 0 +++ executing program [pid 6290] <... close resumed>) = 0 [pid 6289] <... close resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6287, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6290] write(1, "executing program\n", 18executing program ) = 18 [pid 6289] write(1, "executing program\n", 18 [pid 6290] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6289] <... write resumed>) = 18 [pid 6290] <... bpf resumed>) = 3 [pid 6289] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6290] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6289] <... bpf resumed>) = 3 [pid 6289] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6290] <... bpf resumed>) = 4 [pid 6289] <... bpf resumed>) = 4 [pid 6290] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6289] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6291 attached [pid 6291] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6291 [pid 6291] <... set_robust_list resumed>) = 0 [pid 6291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6288] +++ exited with 0 +++ [pid 6286] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6288, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6291] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6291] <... setpgid resumed>) = 0 [pid 6291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6291] <... openat resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6293 attached ./strace-static-x86_64: Process 6292 attached [pid 6293] set_robust_list(0x55556540f660, 24 [pid 6292] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6292 [pid 6293] <... set_robust_list resumed>) = 0 [pid 6292] <... set_robust_list resumed>) = 0 [pid 6293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6291] write(3, "1000", 4 [pid 6293] <... prctl resumed>) = 0 [pid 6292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6291] <... write resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6293 [pid 6293] setpgid(0, 0 [pid 6292] <... prctl resumed>) = 0 [pid 6291] close(3 [pid 6293] <... setpgid resumed>) = 0 [pid 6292] setpgid(0, 0 [pid 6291] <... close resumed>) = 0 [pid 6291] write(1, "executing program\n", 18executing program [pid 6293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6292] <... setpgid resumed>) = 0 [pid 6291] <... write resumed>) = 18 [pid 6293] <... openat resumed>) = 3 [pid 6292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6293] write(3, "1000", 4 [pid 6291] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6293] <... write resumed>) = 4 [pid 6292] <... openat resumed>) = 3 executing program [pid 6293] close(3 [pid 6292] write(3, "1000", 4 [pid 6291] <... bpf resumed>) = 3 [pid 6293] <... close resumed>) = 0 [pid 6292] <... write resumed>) = 4 [pid 6293] write(1, "executing program\n", 18 [pid 6292] close(3 [pid 6291] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6293] <... write resumed>) = 18 [pid 6293] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6292] <... close resumed>) = 0 [pid 6291] <... bpf resumed>) = 4 [pid 6290] <... bpf resumed>) = 5 [pid 6289] <... bpf resumed>) = 5 [pid 6292] write(1, "executing program\n", 18executing program [pid 6291] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6290] exit_group(0 [pid 6293] <... bpf resumed>) = 3 [pid 6292] <... write resumed>) = 18 [pid 6291] <... bpf resumed>) = 5 [pid 6290] <... exit_group resumed>) = ? [pid 6289] exit_group(0 [pid 6293] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6292] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6291] exit_group(0 [pid 6290] +++ exited with 0 +++ [pid 6289] <... exit_group resumed>) = ? [pid 6293] <... bpf resumed>) = 4 [pid 6292] <... bpf resumed>) = 3 [pid 6291] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6290, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6293] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6292] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6292] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6294 attached [pid 6294] set_robust_list(0x55556540f660, 24 [pid 6289] +++ exited with 0 +++ [pid 6294] <... set_robust_list resumed>) = 0 [pid 6294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6289, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6294] <... prctl resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6294] setpgid(0, 0 [pid 6291] +++ exited with 0 +++ [pid 6294] <... setpgid resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6294 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6291, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... restart_syscall resumed>) = 0 [pid 6294] <... openat resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6295 attached [pid 6295] set_robust_list(0x55556540f660, 24) = 0 [pid 6294] write(3, "1000", 4 [pid 6293] <... bpf resumed>) = 5 [pid 6292] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6295 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6294] <... write resumed>) = 4 [pid 6295] <... prctl resumed>) = 0 [pid 6295] setpgid(0, 0) = 0 [pid 6295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6296 attached [pid 6296] set_robust_list(0x55556540f660, 24) = 0 [pid 6295] <... openat resumed>) = 3 [pid 6296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6295] write(3, "1000", 4 [pid 6296] <... prctl resumed>) = 0 [pid 6294] close(3 [pid 6293] exit_group(0 [pid 6292] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6296 [pid 6294] <... close resumed>) = 0 [pid 6296] setpgid(0, 0 [pid 6295] <... write resumed>) = 4 executing program [pid 6294] write(1, "executing program\n", 18 [pid 6293] <... exit_group resumed>) = ? executing program [pid 6292] <... exit_group resumed>) = ? [pid 6295] close(3 [pid 6294] <... write resumed>) = 18 [pid 6295] <... close resumed>) = 0 [pid 6295] write(1, "executing program\n", 18 [pid 6296] <... setpgid resumed>) = 0 [pid 6295] <... write resumed>) = 18 [pid 6294] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6295] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6294] <... bpf resumed>) = 3 [pid 6296] <... openat resumed>) = 3 [pid 6295] <... bpf resumed>) = 3 [pid 6296] write(3, "1000", 4 [pid 6295] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6294] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6296] <... write resumed>) = 4 [pid 6296] close(3executing program [pid 6295] <... bpf resumed>) = 4 [pid 6294] <... bpf resumed>) = 4 [pid 6296] <... close resumed>) = 0 [pid 6295] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6296] write(1, "executing program\n", 18 [pid 6294] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6296] <... write resumed>) = 18 [pid 6296] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6296] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6293] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6293, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6292] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6296] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6296] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6297 ./strace-static-x86_64: Process 6297 attached [pid 6297] set_robust_list(0x55556540f660, 24) = 0 [pid 6297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6297] setpgid(0, 0) = 0 [pid 6294] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6296] <... bpf resumed>) = 5 [pid 6295] <... bpf resumed>) = 5 [pid 6294] exit_group(0) = ? ./strace-static-x86_64: Process 6298 attached [pid 6296] exit_group(0 [pid 6295] exit_group(0 [pid 6298] set_robust_list(0x55556540f660, 24 [pid 6297] <... openat resumed>) = 3 [pid 6295] <... exit_group resumed>) = ? [pid 6294] +++ exited with 0 +++ [pid 6298] <... set_robust_list resumed>) = 0 [pid 6298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6294, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6296] <... exit_group resumed>) = ? [pid 6297] write(3, "1000", 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6298] <... prctl resumed>) = 0 [pid 6297] <... write resumed>) = 4 [pid 6298] setpgid(0, 0) = 0 [pid 6298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6298] write(3, "1000", 4 [pid 6297] close(3 [pid 6298] <... write resumed>) = 4 [pid 6298] close(3 [pid 6297] <... close resumed>) = 0 [pid 6298] <... close resumed>) = 0 [pid 6298] write(1, "executing program\n", 18 [pid 6297] write(1, "executing program\n", 18executing program executing program [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6298 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6298] <... write resumed>) = 18 [pid 6297] <... write resumed>) = 18 [pid 6297] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6298] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6297] <... bpf resumed>) = 3 [pid 6298] <... bpf resumed>) = 3 [pid 6297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6295] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6299 attached [pid 6298] <... bpf resumed>) = 4 [pid 6297] <... bpf resumed>) = 4 [pid 6296] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6295, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6298] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6297] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6299 [pid 6299] set_robust_list(0x55556540f660, 24 [pid 6298] <... bpf resumed>) = 5 [pid 6297] <... bpf resumed>) = 5 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6297] exit_group(0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6297] <... exit_group resumed>) = ? [pid 5844] <... restart_syscall resumed>) = 0 [pid 6299] <... set_robust_list resumed>) = 0 [pid 6298] exit_group(0 [pid 6299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6298] <... exit_group resumed>) = ? [pid 6299] <... prctl resumed>) = 0 [pid 6299] setpgid(0, 0) = 0 [pid 6299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6297] +++ exited with 0 +++ [pid 6299] <... openat resumed>) = 3 [pid 6298] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6297, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6298, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6299] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 6301 attached ./strace-static-x86_64: Process 6300 attached [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6301] set_robust_list(0x55556540f660, 24 [pid 6299] close(3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6301 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6300 [pid 6301] <... set_robust_list resumed>) = 0 [pid 6299] <... close resumed>) = 0 [pid 6300] set_robust_list(0x55556540f660, 24 [pid 6301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6300] <... set_robust_list resumed>) = 0 executing program [pid 6299] write(1, "executing program\n", 18 [pid 6301] <... prctl resumed>) = 0 [pid 6300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6299] <... write resumed>) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6302 attached [pid 6301] setpgid(0, 0 [pid 6300] <... prctl resumed>) = 0 [pid 6299] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6302] set_robust_list(0x55556540f660, 24 [pid 6300] setpgid(0, 0 [pid 6302] <... set_robust_list resumed>) = 0 [pid 6301] <... setpgid resumed>) = 0 [pid 6300] <... setpgid resumed>) = 0 [pid 6299] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6303 attached [pid 6302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6303] set_robust_list(0x55556540f660, 24 [pid 6302] <... prctl resumed>) = 0 [pid 6301] <... openat resumed>) = 3 [pid 6300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6303] <... set_robust_list resumed>) = 0 [pid 6302] setpgid(0, 0 [pid 6301] write(3, "1000", 4 [pid 6300] <... openat resumed>) = 3 [pid 6299] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6302 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6303 [pid 6301] <... write resumed>) = 4 [pid 6300] write(3, "1000", 4 [pid 6303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6302] <... setpgid resumed>) = 0 [pid 6301] close(3 [pid 6300] <... write resumed>) = 4 [pid 6303] <... prctl resumed>) = 0 [pid 6301] <... close resumed>) = 0 [pid 6300] close(3 [pid 6299] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6303] setpgid(0, 0 [pid 6301] write(1, "executing program\n", 18executing program [pid 6300] <... close resumed>) = 0 [pid 6303] <... setpgid resumed>) = 0 [pid 6302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6301] <... write resumed>) = 18 [pid 6299] <... bpf resumed>) = 5 [pid 6303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6302] <... openat resumed>) = 3 [pid 6301] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6300] write(1, "executing program\n", 18 [pid 6299] exit_group(0 [pid 6303] <... openat resumed>) = 3 [pid 6302] write(3, "1000", 4 [pid 6301] <... bpf resumed>) = 3 [pid 6300] <... write resumed>) = 18 [pid 6299] <... exit_group resumed>) = ? [pid 6303] write(3, "1000", 4 [pid 6302] <... write resumed>) = 4 [pid 6301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6300] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6299] +++ exited with 0 +++ [pid 6303] <... write resumed>) = 4 [pid 6302] close(3 [pid 6301] <... bpf resumed>) = 4 [pid 6300] <... bpf resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6299, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6303] close(3 [pid 6302] <... close resumed>) = 0 [pid 6301] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 executing program [pid 6300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6303] <... close resumed>) = 0 [pid 6302] write(1, "executing program\n", 18) = 18 [pid 6303] write(1, "executing program\n", 18 [pid 6302] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6300] <... bpf resumed>) = 4 executing program [pid 6302] <... bpf resumed>) = 3 [pid 6303] <... write resumed>) = 18 [pid 6302] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6303] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6300] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6302] <... bpf resumed>) = 4 [pid 6303] <... bpf resumed>) = 3 [pid 6302] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6303] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6302] <... bpf resumed>) = 5 [pid 6301] <... bpf resumed>) = 5 [pid 6300] <... bpf resumed>) = 5 [pid 6303] exit_group(0 [pid 6302] exit_group(0 [pid 6301] exit_group(0 [pid 6300] exit_group(0 [pid 6303] <... exit_group resumed>) = ? [pid 6302] <... exit_group resumed>) = ? [pid 6301] <... exit_group resumed>) = ? [pid 6300] <... exit_group resumed>) = ? [pid 6303] +++ exited with 0 +++ [pid 6302] +++ exited with 0 +++ [pid 6300] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6303, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6304 attached [pid 6304] set_robust_list(0x55556540f660, 24) = 0 [pid 6304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6301] +++ exited with 0 +++ [pid 6304] <... prctl resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6304 [pid 6304] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6304] <... setpgid resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6305 attached [pid 6304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6307 attached ./strace-static-x86_64: Process 6306 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6308 attached [pid 6307] set_robust_list(0x55556540f660, 24 [pid 6306] set_robust_list(0x55556540f660, 24 [pid 6305] set_robust_list(0x55556540f660, 24 [pid 6304] <... openat resumed>) = 3 [pid 6308] set_robust_list(0x55556540f660, 24 [pid 6307] <... set_robust_list resumed>) = 0 [pid 6306] <... set_robust_list resumed>) = 0 [pid 6304] write(3, "1000", 4 [pid 6306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6304] <... write resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6306 [pid 6306] <... prctl resumed>) = 0 [pid 6304] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6308 [pid 6306] setpgid(0, 0executing program [pid 6304] <... close resumed>) = 0 [pid 6306] <... setpgid resumed>) = 0 [pid 6304] write(1, "executing program\n", 18 [pid 6308] <... set_robust_list resumed>) = 0 [pid 6307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6305] <... set_robust_list resumed>) = 0 [pid 6304] <... write resumed>) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6305 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6307 [pid 6308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6307] <... prctl resumed>) = 0 [pid 6305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6304] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6308] <... prctl resumed>) = 0 [pid 6307] setpgid(0, 0 [pid 6306] <... openat resumed>) = 3 [pid 6305] <... prctl resumed>) = 0 [pid 6304] <... bpf resumed>) = 3 [pid 6308] setpgid(0, 0 [pid 6307] <... setpgid resumed>) = 0 [pid 6305] setpgid(0, 0 [pid 6308] <... setpgid resumed>) = 0 [pid 6305] <... setpgid resumed>) = 0 [pid 6306] write(3, "1000", 4 [pid 6304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6306] <... write resumed>) = 4 [pid 6305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6304] <... bpf resumed>) = 4 [pid 6306] close(3executing program ) = 0 [pid 6306] write(1, "executing program\n", 18 [pid 6308] <... openat resumed>) = 3 [pid 6306] <... write resumed>) = 18 [pid 6305] <... openat resumed>) = 3 [pid 6308] write(3, "1000", 4 [pid 6307] <... openat resumed>) = 3 [pid 6306] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6305] write(3, "1000", 4 [pid 6308] <... write resumed>) = 4 [pid 6307] write(3, "1000", 4 [pid 6308] close(3 [pid 6307] <... write resumed>) = 4 [pid 6308] <... close resumed>) = 0 [pid 6307] close(3 [pid 6305] <... write resumed>) = 4 [pid 6308] write(1, "executing program\n", 18 [pid 6307] <... close resumed>) = 0 executing program [pid 6306] <... bpf resumed>) = 3 [pid 6304] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6308] <... write resumed>) = 18 [pid 6307] write(1, "executing program\n", 18 [pid 6306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6305] close(3 [pid 6304] <... bpf resumed>) = 5 [pid 6308] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6307] <... write resumed>) = 18 [pid 6305] <... close resumed>) = 0 [pid 6304] exit_group(0 [pid 6306] <... bpf resumed>) = 4 [pid 6304] <... exit_group resumed>) = ? [pid 6308] <... bpf resumed>) = 3 executing program [pid 6307] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6306] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6305] write(1, "executing program\n", 18 [pid 6304] +++ exited with 0 +++ [pid 6308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6307] <... bpf resumed>) = 3 [pid 6305] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6308] <... bpf resumed>) = 4 [pid 6307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6305] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6306] <... bpf resumed>) = 5 [pid 6305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6308] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6307] <... bpf resumed>) = 4 [pid 6306] exit_group(0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6306] <... exit_group resumed>) = ? [pid 6305] <... bpf resumed>) = 4 [pid 6308] <... bpf resumed>) = 5 [pid 6307] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6305] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6308] exit_group(0./strace-static-x86_64: Process 6309 attached ) = ? [pid 6309] set_robust_list(0x55556540f660, 24) = 0 [pid 6306] +++ exited with 0 +++ [pid 6309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6307] <... bpf resumed>) = 5 [pid 6309] <... prctl resumed>) = 0 [pid 6308] +++ exited with 0 +++ [pid 6305] <... bpf resumed>) = 5 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6309 [pid 6309] setpgid(0, 0 [pid 6307] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6308, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6309] <... setpgid resumed>) = 0 [pid 6307] <... exit_group resumed>) = ? [pid 6305] exit_group(0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6305] <... exit_group resumed>) = ? [pid 6309] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6309] write(3, "1000", 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6310 attached ./strace-static-x86_64: Process 6311 attached [pid 6309] <... write resumed>) = 4 [pid 6310] set_robust_list(0x55556540f660, 24 [pid 6309] close(3 [pid 6311] set_robust_list(0x55556540f660, 24 [pid 6309] <... close resumed>) = 0 [pid 6309] write(1, "executing program\n", 18executing program ) = 18 [pid 6309] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6311] <... set_robust_list resumed>) = 0 [pid 6310] <... set_robust_list resumed>) = 0 [pid 6309] <... bpf resumed>) = 3 [pid 6307] +++ exited with 0 +++ [pid 6305] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6311 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6310 [pid 6310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6305, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6311] <... prctl resumed>) = 0 [pid 6310] <... prctl resumed>) = 0 [pid 6309] <... bpf resumed>) = 4 [pid 6311] setpgid(0, 0 [pid 6310] setpgid(0, 0 [pid 6311] <... setpgid resumed>) = 0 [pid 6309] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6310] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6313 attached ./strace-static-x86_64: Process 6312 attached [pid 6311] <... openat resumed>) = 3 [pid 6310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6312 [pid 6313] set_robust_list(0x55556540f660, 24 [pid 6309] <... bpf resumed>) = 5 [pid 6313] <... set_robust_list resumed>) = 0 [pid 6312] set_robust_list(0x55556540f660, 24 [pid 6311] write(3, "1000", 4 [pid 6310] <... openat resumed>) = 3 [pid 6309] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6313 [pid 6313] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6312] <... set_robust_list resumed>) = 0 [pid 6311] <... write resumed>) = 4 [pid 6310] write(3, "1000", 4 [pid 6309] <... exit_group resumed>) = ? [pid 6313] <... prctl resumed>) = 0 [pid 6312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6311] close(3 [pid 6310] <... write resumed>) = 4 [pid 6309] +++ exited with 0 +++ [pid 6313] setpgid(0, 0 [pid 6311] <... close resumed>) = 0 [pid 6310] close(3 [pid 6313] <... setpgid resumed>) = 0 [pid 6312] <... prctl resumed>) = 0 [pid 6310] <... close resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6309, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6311] write(1, "executing program\n", 18 [pid 6313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6312] setpgid(0, 0executing program [pid 6310] write(1, "executing program\n", 18 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6311] <... write resumed>) = 18 [pid 6310] <... write resumed>) = 18 [pid 6313] <... openat resumed>) = 3 [pid 6312] <... setpgid resumed>) = 0 [pid 6311] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6310] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6313] write(3, "1000", 4 [pid 6312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6311] <... bpf resumed>) = 3 [pid 6310] <... bpf resumed>) = 3 [pid 6313] <... write resumed>) = 4 [pid 6312] <... openat resumed>) = 3 [pid 6313] close(3 executing program [pid 6311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6313] <... close resumed>) = 0 [pid 6313] write(1, "executing program\n", 18 [pid 6312] write(3, "1000", 4 [pid 6313] <... write resumed>) = 18 [pid 6312] <... write resumed>) = 4 [pid 6313] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6312] close(3 [pid 6310] <... bpf resumed>) = 4 [pid 6313] <... bpf resumed>) = 3 [pid 6312] <... close resumed>) = 0 [pid 6311] <... bpf resumed>) = 4 [pid 6310] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6312] write(1, "executing program\n", 18 [pid 6313] <... bpf resumed>) = 4 [pid 6312] <... write resumed>) = 18 [pid 6311] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6312] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6313] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6312] <... bpf resumed>) = 3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6314 attached [pid 6312] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6314 [pid 6314] set_robust_list(0x55556540f660, 24) = 0 [pid 6314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6313] <... bpf resumed>) = 5 [pid 6312] <... bpf resumed>) = 5 [pid 6311] <... bpf resumed>) = 5 [pid 6310] <... bpf resumed>) = 5 [pid 6314] <... prctl resumed>) = 0 [pid 6313] exit_group(0 [pid 6312] exit_group(0 [pid 6314] setpgid(0, 0 [pid 6313] <... exit_group resumed>) = ? [pid 6312] <... exit_group resumed>) = ? [pid 6314] <... setpgid resumed>) = 0 [pid 6313] +++ exited with 0 +++ [pid 6312] +++ exited with 0 +++ [pid 6311] exit_group(0 [pid 6310] exit_group(0 [pid 6311] <... exit_group resumed>) = ? [pid 6314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6313, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6314] <... openat resumed>) = 3 [pid 6310] <... exit_group resumed>) = ? [pid 6314] write(3, "1000", 4 [pid 6311] +++ exited with 0 +++ [pid 6310] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6314] <... write resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6310, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6314] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6314] <... close resumed>) = 0 executing program [pid 6314] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6315 attached [pid 6314] <... write resumed>) = 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6314] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6316 attached [pid 6315] set_robust_list(0x55556540f660, 24 [pid 6314] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6315 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6315] <... set_robust_list resumed>) = 0 [pid 6314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6315] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6317 attached [pid 6316] set_robust_list(0x55556540f660, 24 [pid 6315] <... prctl resumed>) = 0 [pid 6314] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6318 attached [pid 6317] set_robust_list(0x55556540f660, 24 [pid 6316] <... set_robust_list resumed>) = 0 [pid 6315] setpgid(0, 0 [pid 6314] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6316 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6318 [pid 6318] set_robust_list(0x55556540f660, 24 [pid 6317] <... set_robust_list resumed>) = 0 [pid 6316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6315] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6317 [pid 6318] <... set_robust_list resumed>) = 0 [pid 6316] <... prctl resumed>) = 0 [pid 6318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6316] setpgid(0, 0 [pid 6315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6314] <... bpf resumed>) = 5 [pid 6318] <... prctl resumed>) = 0 [pid 6316] <... setpgid resumed>) = 0 [pid 6318] setpgid(0, 0 [pid 6316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6318] <... setpgid resumed>) = 0 [pid 6317] <... prctl resumed>) = 0 [pid 6315] <... openat resumed>) = 3 [pid 6318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6317] setpgid(0, 0 [pid 6316] <... openat resumed>) = 3 [pid 6314] exit_group(0 [pid 6317] <... setpgid resumed>) = 0 [pid 6314] <... exit_group resumed>) = ? [pid 6318] <... openat resumed>) = 3 [pid 6317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6316] write(3, "1000", 4 [pid 6315] write(3, "1000", 4 [pid 6314] +++ exited with 0 +++ [pid 6318] write(3, "1000", 4 [pid 6316] <... write resumed>) = 4 [pid 6318] <... write resumed>) = 4 [pid 6316] close(3 [pid 6318] close(3 [pid 6316] <... close resumed>) = 0 [pid 6318] <... close resumed>) = 0 [pid 6316] write(1, "executing program\n", 18executing program executing program [pid 6318] write(1, "executing program\n", 18 [pid 6316] <... write resumed>) = 18 [pid 6318] <... write resumed>) = 18 [pid 6316] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6318] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6317] <... openat resumed>) = 3 [pid 6315] <... write resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6314, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6318] <... bpf resumed>) = 3 [pid 6316] <... bpf resumed>) = 3 [pid 6317] write(3, "1000", 4 [pid 6315] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6317] <... write resumed>) = 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6315] <... close resumed>) = 0 [pid 6317] close(3 [pid 6315] write(1, "executing program\n", 18 [pid 6318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6317] <... close resumed>) = 0 [pid 6316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6315] <... write resumed>) = 18 [pid 6318] <... bpf resumed>) = 4 [pid 6317] write(1, "executing program\n", 18 executing program [pid 6316] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6318] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6317] <... write resumed>) = 18 [pid 6316] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6315] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6319 attached [pid 6318] <... bpf resumed>) = 5 [pid 6317] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6319] set_robust_list(0x55556540f660, 24 [pid 6318] exit_group(0 [pid 6317] <... bpf resumed>) = 3 [pid 6316] <... bpf resumed>) = 5 [pid 6315] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6319 [pid 6319] <... set_robust_list resumed>) = 0 [pid 6318] <... exit_group resumed>) = ? [pid 6317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6316] exit_group(0 [pid 6315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6317] <... bpf resumed>) = 4 [pid 6316] <... exit_group resumed>) = ? [pid 6319] <... prctl resumed>) = 0 [pid 6317] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6315] <... bpf resumed>) = 4 [pid 6319] setpgid(0, 0) = 0 [pid 6315] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6319] write(3, "1000", 4) = 4 [pid 6319] close(3) = 0 [pid 6319] write(1, "executing program\n", 18executing program ) = 18 [pid 6319] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6319] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6318] +++ exited with 0 +++ [pid 6316] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6318, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6321 attached ./strace-static-x86_64: Process 6320 attached , child_tidptr=0x55556540f650) = 6321 [pid 6321] set_robust_list(0x55556540f660, 24 [pid 6320] set_robust_list(0x55556540f660, 24 [pid 6319] <... bpf resumed>) = 5 [pid 6317] <... bpf resumed>) = 5 [pid 6315] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6320 [pid 6321] <... set_robust_list resumed>) = 0 [pid 6320] <... set_robust_list resumed>) = 0 [pid 6319] exit_group(0 [pid 6315] exit_group(0 [pid 6321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6319] <... exit_group resumed>) = ? [pid 6317] exit_group(0 [pid 6321] <... prctl resumed>) = 0 [pid 6320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6317] <... exit_group resumed>) = ? [pid 6315] <... exit_group resumed>) = ? [pid 6321] setpgid(0, 0 [pid 6320] <... prctl resumed>) = 0 [pid 6319] +++ exited with 0 +++ [pid 6315] +++ exited with 0 +++ [pid 6321] <... setpgid resumed>) = 0 [pid 6317] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6315, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6320] setpgid(0, 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6320] <... setpgid resumed>) = 0 [pid 6321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6317, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6321] <... openat resumed>) = 3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6321] write(3, "1000", 4 [pid 6320] <... openat resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6320] write(3, "1000", 4) = 4 [pid 6321] <... write resumed>) = 4 [pid 6320] close(3 [pid 6321] close(3 [pid 6320] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6321] <... close resumed>) = 0 [pid 6320] write(1, "executing program\n", 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6323 attached ./strace-static-x86_64: Process 6322 attached executing program executing program [pid 6321] write(1, "executing program\n", 18./strace-static-x86_64: Process 6324 attached [pid 6322] set_robust_list(0x55556540f660, 24 [pid 6321] <... write resumed>) = 18 [pid 6320] <... write resumed>) = 18 [pid 6322] <... set_robust_list resumed>) = 0 [pid 6324] set_robust_list(0x55556540f660, 24 [pid 6323] set_robust_list(0x55556540f660, 24 [pid 6322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6321] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6320] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6322 [pid 6322] <... prctl resumed>) = 0 [pid 6324] <... set_robust_list resumed>) = 0 [pid 6323] <... set_robust_list resumed>) = 0 [pid 6321] <... bpf resumed>) = 3 [pid 6320] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6323 [pid 6324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6322] setpgid(0, 0 [pid 6321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6324 [pid 6324] <... prctl resumed>) = 0 [pid 6323] <... prctl resumed>) = 0 [pid 6322] <... setpgid resumed>) = 0 [pid 6321] <... bpf resumed>) = 4 [pid 6320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6324] setpgid(0, 0 [pid 6323] setpgid(0, 0 [pid 6322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6324] <... setpgid resumed>) = 0 [pid 6323] <... setpgid resumed>) = 0 [pid 6324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6321] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6320] <... bpf resumed>) = 4 [pid 6322] <... openat resumed>) = 3 [pid 6324] <... openat resumed>) = 3 [pid 6323] <... openat resumed>) = 3 [pid 6322] write(3, "1000", 4 [pid 6320] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6322] <... write resumed>) = 4 [pid 6324] write(3, "1000", 4 [pid 6322] close(3 [pid 6321] <... bpf resumed>) = 5 [pid 6323] write(3, "1000", 4 [pid 6321] exit_group(0 [pid 6322] <... close resumed>) = 0 [pid 6321] <... exit_group resumed>) = ? [pid 6324] <... write resumed>) = 4 [pid 6324] close(3 [pid 6323] <... write resumed>) = 4 executing program [pid 6322] write(1, "executing program\n", 18 [pid 6320] <... bpf resumed>) = 5 [pid 6324] <... close resumed>) = 0 [pid 6323] close(3 [pid 6322] <... write resumed>) = 18 [pid 6324] write(1, "executing program\n", 18 [pid 6323] <... close resumed>) = 0 executing program [pid 6320] exit_group(0 executing program [pid 6322] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6324] <... write resumed>) = 18 [pid 6323] write(1, "executing program\n", 18 [pid 6320] <... exit_group resumed>) = ? [pid 6324] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6323] <... write resumed>) = 18 [pid 6322] <... bpf resumed>) = 3 [pid 6324] <... bpf resumed>) = 3 [pid 6323] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6324] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6323] <... bpf resumed>) = 3 [pid 6322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6321] +++ exited with 0 +++ [pid 6320] +++ exited with 0 +++ [pid 6324] <... bpf resumed>) = 4 [pid 6323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6322] <... bpf resumed>) = 4 [pid 6322] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6321, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6324] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6323] <... bpf resumed>) = 4 [pid 6323] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6324] <... bpf resumed>) = 5 [pid 6323] <... bpf resumed>) = 5 [pid 6322] <... bpf resumed>) = 5 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6324] exit_group(0) = ? [pid 6323] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6324] +++ exited with 0 +++ [pid 6323] <... exit_group resumed>) = ? [pid 6322] exit_group(0./strace-static-x86_64: Process 6325 attached [pid 6325] set_robust_list(0x55556540f660, 24 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6325] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6326 attached [pid 6325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6326] set_robust_list(0x55556540f660, 24 [pid 6325] <... prctl resumed>) = 0 [pid 6326] <... set_robust_list resumed>) = 0 [pid 6325] setpgid(0, 0 [pid 6326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6325] <... setpgid resumed>) = 0 [pid 6326] <... prctl resumed>) = 0 [pid 6325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6323] +++ exited with 0 +++ [pid 6326] setpgid(0, 0) = 0 [pid 6326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6325] <... openat resumed>) = 3 [pid 6322] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6326 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6325 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... restart_syscall resumed>) = 0 [pid 6326] <... openat resumed>) = 3 [pid 6325] write(3, "1000", 4) = 4 [pid 6325] close(3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6326] write(3, "1000", 4 [pid 6325] <... close resumed>) = 0 [pid 6322] +++ exited with 0 +++ executing program ./strace-static-x86_64: Process 6327 attached [pid 6326] <... write resumed>) = 4 [pid 6325] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6326] close(3 [pid 6325] <... write resumed>) = 18 [pid 6327] set_robust_list(0x55556540f660, 24) = 0 [pid 6325] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6326] <... close resumed>) = 0 executing program [pid 6326] write(1, "executing program\n", 18) = 18 [pid 6325] <... bpf resumed>) = 3 [pid 6326] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6327 [pid 6326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6325] <... bpf resumed>) = 4 [pid 6326] <... bpf resumed>) = 4 [pid 6325] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6326] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6325] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6328 attached [pid 6327] <... prctl resumed>) = 0 [pid 6326] <... bpf resumed>) = 5 [pid 6325] exit_group(0 [pid 6327] setpgid(0, 0 [pid 6325] <... exit_group resumed>) = ? [pid 6328] set_robust_list(0x55556540f660, 24) = 0 [pid 6328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6327] <... setpgid resumed>) = 0 [pid 6328] <... prctl resumed>) = 0 [pid 6327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6326] exit_group(0 [pid 6327] <... openat resumed>) = 3 [pid 6326] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6328 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6328] setpgid(0, 0 [pid 6327] write(3, "1000", 4 [pid 6328] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6329 attached [pid 6327] <... write resumed>) = 4 executing program [pid 6327] close(3) = 0 [pid 6327] write(1, "executing program\n", 18) = 18 [pid 6328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6327] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6329 [pid 6329] set_robust_list(0x55556540f660, 24 [pid 6327] <... bpf resumed>) = 3 [pid 6329] <... set_robust_list resumed>) = 0 [pid 6328] <... openat resumed>) = 3 [pid 6327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6328] write(3, "1000", 4 [pid 6327] <... bpf resumed>) = 4 [pid 6329] <... prctl resumed>) = 0 [pid 6328] <... write resumed>) = 4 [pid 6327] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6329] setpgid(0, 0 [pid 6328] close(3 [pid 6329] <... setpgid resumed>) = 0 [pid 6329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6328] <... close resumed>) = 0 [pid 6326] +++ exited with 0 +++ [pid 6325] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6328] write(1, "executing program\n", 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6328] <... write resumed>) = 18 [pid 6329] <... openat resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6329] write(3, "1000", 4 [pid 6328] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6330 attached [pid 6329] <... write resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6330 [pid 6330] set_robust_list(0x55556540f660, 24 [pid 6329] close(3 [pid 6328] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6330] <... set_robust_list resumed>) = 0 [pid 6329] <... close resumed>) = 0 [pid 6330] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6331 attached [pid 6331] set_robust_list(0x55556540f660, 24) = 0 [pid 6330] <... prctl resumed>) = 0 executing program [pid 6329] write(1, "executing program\n", 18 [pid 6328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6327] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6331 [pid 6330] setpgid(0, 0 [pid 6329] <... write resumed>) = 18 [pid 6331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6328] <... bpf resumed>) = 4 [pid 6327] exit_group(0 [pid 6331] <... prctl resumed>) = 0 [pid 6330] <... setpgid resumed>) = 0 [pid 6329] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6327] <... exit_group resumed>) = ? [pid 6331] setpgid(0, 0 [pid 6330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6329] <... bpf resumed>) = 3 [pid 6328] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6327] +++ exited with 0 +++ [pid 6331] <... setpgid resumed>) = 0 [pid 6329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6330] <... openat resumed>) = 3 [pid 6331] <... openat resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6330] write(3, "1000", 4 [pid 6331] write(3, "1000", 4 [pid 6330] <... write resumed>) = 4 [pid 6331] <... write resumed>) = 4 [pid 6331] close(3) = 0 [pid 6330] close(3 [pid 6329] <... bpf resumed>) = 4 [pid 6330] <... close resumed>) = 0 executing program [pid 6331] write(1, "executing program\n", 18) = 18 [pid 6331] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6330] write(1, "executing program\n", 18executing program [pid 6329] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6330] <... write resumed>) = 18 [pid 6331] <... bpf resumed>) = 3 [pid 6330] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6330] <... bpf resumed>) = 3 [pid 6331] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6330] <... bpf resumed>) = 4 [pid 6330] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6332 attached [pid 6332] set_robust_list(0x55556540f660, 24 [pid 6331] <... bpf resumed>) = 5 [pid 6330] <... bpf resumed>) = 5 [pid 6329] <... bpf resumed>) = 5 [pid 6328] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6332 [pid 6332] <... set_robust_list resumed>) = 0 [pid 6331] exit_group(0 [pid 6330] exit_group(0 [pid 6329] exit_group(0 [pid 6328] exit_group(0 [pid 6332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6331] <... exit_group resumed>) = ? [pid 6330] <... exit_group resumed>) = ? [pid 6329] <... exit_group resumed>) = ? [pid 6328] <... exit_group resumed>) = ? [pid 6332] <... prctl resumed>) = 0 [pid 6331] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6332] setpgid(0, 0) = 0 [pid 6332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6329] +++ exited with 0 +++ [pid 6332] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6329, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6332] write(3, "1000", 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6332] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6332] close(3) = 0 ./strace-static-x86_64: Process 6333 attached [pid 6330] +++ exited with 0 +++ [pid 6328] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 6333] set_robust_list(0x55556540f660, 24 executing program [pid 6332] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6328, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6333 [pid 6333] <... set_robust_list resumed>) = 0 [pid 6332] <... write resumed>) = 18 [pid 6333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6332] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6333] <... prctl resumed>) = 0 [pid 6332] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6333] setpgid(0, 0 [pid 6332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6335 attached ./strace-static-x86_64: Process 6334 attached [pid 6333] <... setpgid resumed>) = 0 [pid 6332] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6336 attached [pid 6335] set_robust_list(0x55556540f660, 24 [pid 6334] set_robust_list(0x55556540f660, 24 [pid 6333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6334 [pid 6336] set_robust_list(0x55556540f660, 24 [pid 6335] <... set_robust_list resumed>) = 0 [pid 6334] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6335 [pid 6332] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6336] <... set_robust_list resumed>) = 0 [pid 6335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6333] <... openat resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6336 [pid 6332] <... bpf resumed>) = 5 [pid 6336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6334] <... prctl resumed>) = 0 [pid 6333] write(3, "1000", 4 [pid 6336] <... prctl resumed>) = 0 [pid 6335] <... prctl resumed>) = 0 [pid 6334] setpgid(0, 0 [pid 6336] setpgid(0, 0 [pid 6335] setpgid(0, 0 [pid 6333] <... write resumed>) = 4 [pid 6332] exit_group(0 [pid 6333] close(3 [pid 6332] <... exit_group resumed>) = ? executing program [pid 6336] <... setpgid resumed>) = 0 [pid 6335] <... setpgid resumed>) = 0 [pid 6334] <... setpgid resumed>) = 0 [pid 6333] <... close resumed>) = 0 [pid 6332] +++ exited with 0 +++ [pid 6333] write(1, "executing program\n", 18) = 18 [pid 6334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6333] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6332, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6333] <... bpf resumed>) = 3 [pid 6335] <... openat resumed>) = 3 [pid 6334] <... openat resumed>) = 3 [pid 6333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6336] <... openat resumed>) = 3 [pid 6335] write(3, "1000", 4 [pid 6334] write(3, "1000", 4 [pid 6335] <... write resumed>) = 4 [pid 6334] <... write resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6335] close(3 [pid 6333] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6337 attached [pid 6335] <... close resumed>) = 0 [pid 6334] close(3 [pid 6336] write(3, "1000", 4 [pid 6335] write(1, "executing program\n", 18 [pid 6334] <... close resumed>) = 0 executing program [pid 6337] set_robust_list(0x55556540f660, 24 [pid 6336] <... write resumed>) = 4 executing program [pid 6335] <... write resumed>) = 18 [pid 6334] write(1, "executing program\n", 18 [pid 6333] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6337 [pid 6336] close(3 [pid 6335] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6334] <... write resumed>) = 18 [pid 6337] <... set_robust_list resumed>) = 0 [pid 6336] <... close resumed>) = 0 [pid 6333] <... bpf resumed>) = 5 executing program [pid 6336] write(1, "executing program\n", 18 [pid 6334] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6333] exit_group(0 [pid 6337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6336] <... write resumed>) = 18 [pid 6335] <... bpf resumed>) = 3 [pid 6334] <... bpf resumed>) = 3 [pid 6333] <... exit_group resumed>) = ? [pid 6337] <... prctl resumed>) = 0 [pid 6336] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6333] +++ exited with 0 +++ [pid 6337] setpgid(0, 0 [pid 6336] <... bpf resumed>) = 3 [pid 6337] <... setpgid resumed>) = 0 [pid 6337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6333, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6337] write(3, "1000", 4 [pid 6336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6337] <... write resumed>) = 4 [pid 6335] <... bpf resumed>) = 4 [pid 6334] <... bpf resumed>) = 4 [pid 6337] close(3) = 0 executing program [pid 6337] write(1, "executing program\n", 18) = 18 [pid 6336] <... bpf resumed>) = 4 [pid 6335] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6334] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6337] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6336] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6338 attached [pid 6337] <... bpf resumed>) = 4 [pid 6335] <... bpf resumed>) = 5 [pid 6338] set_robust_list(0x55556540f660, 24 [pid 6337] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6334] <... bpf resumed>) = 5 [pid 6338] <... set_robust_list resumed>) = 0 [pid 6337] <... bpf resumed>) = 5 [pid 6336] <... bpf resumed>) = 5 [pid 6335] exit_group(0 [pid 6338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6337] exit_group(0 [pid 6338] <... prctl resumed>) = 0 [pid 6337] <... exit_group resumed>) = ? [pid 6338] setpgid(0, 0 [pid 6336] exit_group(0 [pid 6335] <... exit_group resumed>) = ? [pid 6334] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6338 [pid 6338] <... setpgid resumed>) = 0 [pid 6337] +++ exited with 0 +++ [pid 6336] <... exit_group resumed>) = ? [pid 6335] +++ exited with 0 +++ [pid 6334] <... exit_group resumed>) = ? [pid 6338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6335, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6338] <... openat resumed>) = 3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6338] write(3, "1000", 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6338] <... write resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6338] close(3 [pid 5842] <... restart_syscall resumed>) = 0 executing program [pid 6338] <... close resumed>) = 0 [pid 6338] write(1, "executing program\n", 18 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6338] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6338] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6339 attached ) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6340 attached [pid 6339] set_robust_list(0x55556540f660, 24 [pid 6338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6339 [pid 6339] <... set_robust_list resumed>) = 0 [pid 6338] <... bpf resumed>) = 4 [pid 6340] set_robust_list(0x55556540f660, 24 [pid 6339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6340 [pid 6340] <... set_robust_list resumed>) = 0 [pid 6339] <... prctl resumed>) = 0 [pid 6338] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6339] setpgid(0, 0 [pid 6336] +++ exited with 0 +++ [pid 6340] <... prctl resumed>) = 0 [pid 6338] <... bpf resumed>) = 5 [pid 6339] <... setpgid resumed>) = 0 [pid 6340] setpgid(0, 0 [pid 6338] exit_group(0 [pid 6339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6340] <... setpgid resumed>) = 0 [pid 6338] <... exit_group resumed>) = ? [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6340] <... openat resumed>) = 3 [pid 6339] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6341 attached [pid 6340] write(3, "1000", 4 [pid 6339] write(3, "1000", 4 [pid 6341] set_robust_list(0x55556540f660, 24 [pid 6340] <... write resumed>) = 4 [pid 6339] <... write resumed>) = 4 [pid 6341] <... set_robust_list resumed>) = 0 [pid 6340] close(3 [pid 6339] close(3 [pid 6341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6340] <... close resumed>) = 0 [pid 6339] <... close resumed>) = 0 executing program executing program [pid 6341] setpgid(0, 0 [pid 6340] write(1, "executing program\n", 18 [pid 6339] write(1, "executing program\n", 18 [pid 6338] +++ exited with 0 +++ [pid 6334] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6341 [pid 6341] <... setpgid resumed>) = 0 [pid 6340] <... write resumed>) = 18 [pid 6339] <... write resumed>) = 18 [pid 6341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6338, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6341] <... openat resumed>) = 3 [pid 6340] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6339] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6341] write(3, "1000", 4 [pid 6340] <... bpf resumed>) = 3 [pid 6339] <... bpf resumed>) = 3 [pid 6341] <... write resumed>) = 4 [pid 6340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6341] close(3executing program ./strace-static-x86_64: Process 6343 attached ./strace-static-x86_64: Process 6342 attached ) = 0 [pid 6340] <... bpf resumed>) = 4 [pid 6339] <... bpf resumed>) = 4 [pid 6342] set_robust_list(0x55556540f660, 24 [pid 6341] write(1, "executing program\n", 18) = 18 [pid 6342] <... set_robust_list resumed>) = 0 [pid 6341] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6340] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6339] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6342] <... prctl resumed>) = 0 [pid 6343] set_robust_list(0x55556540f660, 24 [pid 6342] setpgid(0, 0 [pid 6341] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6342 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6343 [pid 6343] <... set_robust_list resumed>) = 0 [pid 6342] <... setpgid resumed>) = 0 [pid 6343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6343] <... prctl resumed>) = 0 [pid 6342] <... openat resumed>) = 3 [pid 6339] <... bpf resumed>) = 5 [pid 6343] setpgid(0, 0 [pid 6342] write(3, "1000", 4 [pid 6341] <... bpf resumed>) = 4 [pid 6340] <... bpf resumed>) = 5 [pid 6339] exit_group(0 [pid 6343] <... setpgid resumed>) = 0 [pid 6342] <... write resumed>) = 4 [pid 6340] exit_group(0 [pid 6341] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6340] <... exit_group resumed>) = ? [pid 6339] <... exit_group resumed>) = ? [pid 6343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6342] close(3 [pid 6341] <... bpf resumed>) = 5 [pid 6340] +++ exited with 0 +++ executing program [pid 6342] <... close resumed>) = 0 [pid 6341] exit_group(0 [pid 6343] <... openat resumed>) = 3 [pid 6343] write(3, "1000", 4 [pid 6342] write(1, "executing program\n", 18 [pid 6341] <... exit_group resumed>) = ? [pid 6343] <... write resumed>) = 4 [pid 6342] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6343] close(3 [pid 6342] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6343] <... close resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6343] write(1, "executing program\n", 18 [pid 6342] <... bpf resumed>) = 3 executing program [pid 6343] <... write resumed>) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6344 attached [pid 6342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6343] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6344] set_robust_list(0x55556540f660, 24) = 0 [pid 6343] <... bpf resumed>) = 3 [pid 6344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6344 [pid 6344] setpgid(0, 0 [pid 6342] <... bpf resumed>) = 4 [pid 6339] +++ exited with 0 +++ [pid 6344] <... setpgid resumed>) = 0 [pid 6343] <... bpf resumed>) = 4 [pid 6341] +++ exited with 0 +++ [pid 6344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6343] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6342] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6344] <... openat resumed>) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6344] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6344] <... write resumed>) = 4 [pid 6344] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6345 attached [pid 6344] write(1, "executing program\n", 18) = 18 [pid 6344] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6345] set_robust_list(0x55556540f660, 24 [pid 6344] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6345 [pid 6345] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6346 attached [pid 6345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6344] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6346] set_robust_list(0x55556540f660, 24 [pid 6345] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6346 [pid 6346] <... set_robust_list resumed>) = 0 [pid 6345] <... setpgid resumed>) = 0 [pid 6345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6346] setpgid(0, 0 [pid 6345] <... openat resumed>) = 3 [pid 6345] write(3, "1000", 4 [pid 6346] <... setpgid resumed>) = 0 [pid 6344] <... bpf resumed>) = 5 [pid 6343] <... bpf resumed>) = 5 [pid 6342] <... bpf resumed>) = 5 [pid 6345] <... write resumed>) = 4 [pid 6344] exit_group(0 [pid 6346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6345] close(3 [pid 6344] <... exit_group resumed>) = ? [pid 6343] exit_group(0 [pid 6342] exit_group(0 [pid 6346] <... openat resumed>) = 3 [pid 6345] <... close resumed>) = 0 [pid 6344] +++ exited with 0 +++ [pid 6343] <... exit_group resumed>) = ? [pid 6342] <... exit_group resumed>) = ? [pid 6346] write(3, "1000", 4 [pid 6345] write(1, "executing program\n", 18) = 18 [pid 6345] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 executing program [pid 6345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6342] +++ exited with 0 +++ [pid 6346] <... write resumed>) = 4 [pid 6343] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6346] close(3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6346] <... close resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 executing program [pid 6346] write(1, "executing program\n", 18) = 18 [pid 6345] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6345] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6348 attached ./strace-static-x86_64: Process 6347 attached [pid 6346] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6348] set_robust_list(0x55556540f660, 24 [pid 6347] set_robust_list(0x55556540f660, 24 [pid 6346] <... bpf resumed>) = 3 [pid 6345] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6347 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6348 [pid 6348] <... set_robust_list resumed>) = 0 [pid 6347] <... set_robust_list resumed>) = 0 [pid 6346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6345] exit_group(0 [pid 6348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6348] <... prctl resumed>) = 0 [pid 6347] <... prctl resumed>) = 0 [pid 6345] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6349 attached [pid 6348] setpgid(0, 0 [pid 6347] setpgid(0, 0 [pid 6346] <... bpf resumed>) = 4 [pid 6345] +++ exited with 0 +++ [pid 6348] <... setpgid resumed>) = 0 [pid 6349] set_robust_list(0x55556540f660, 24 [pid 6348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6347] <... setpgid resumed>) = 0 [pid 6346] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6349] <... set_robust_list resumed>) = 0 [pid 6348] <... openat resumed>) = 3 [pid 6347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6349 [pid 6348] write(3, "1000", 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6347] <... openat resumed>) = 3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6349] <... prctl resumed>) = 0 [pid 6348] <... write resumed>) = 4 [pid 6348] close(3) = 0 [pid 6349] setpgid(0, 0 [pid 6347] write(3, "1000", 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6349] <... setpgid resumed>) = 0 [pid 6348] write(1, "executing program\n", 18 [pid 6347] <... write resumed>) = 4 [pid 6348] <... write resumed>) = 18 [pid 6347] close(3 [pid 6348] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6350 attached [pid 6349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6347] <... close resumed>) = 0 executing program executing program [pid 6350] set_robust_list(0x55556540f660, 24 [pid 6348] <... bpf resumed>) = 3 [pid 6347] write(1, "executing program\n", 18) = 18 [pid 6347] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6349] <... openat resumed>) = 3 [pid 6346] <... bpf resumed>) = 5 [pid 6350] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6350 [pid 6350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6347] <... bpf resumed>) = 3 [pid 6347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6350] <... prctl resumed>) = 0 [pid 6349] write(3, "1000", 4 [pid 6346] exit_group(0 [pid 6350] setpgid(0, 0 [pid 6349] <... write resumed>) = 4 [pid 6346] <... exit_group resumed>) = ? [pid 6350] <... setpgid resumed>) = 0 [pid 6349] close(3 [pid 6350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6347] <... bpf resumed>) = 4 [pid 6349] <... close resumed>) = 0 [pid 6348] <... bpf resumed>) = 4 [pid 6347] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6350] <... openat resumed>) = 3 [pid 6349] write(1, "executing program\n", 18 [pid 6350] write(3, "1000", 4 [pid 6349] <... write resumed>) = 18 [pid 6347] <... bpf resumed>) = 5 [pid 6350] <... write resumed>) = 4 [pid 6349] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6348] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6350] close(3 [pid 6347] exit_group(0) = ? [pid 6350] <... close resumed>) = 0 executing program [pid 6349] <... bpf resumed>) = 3 [pid 6350] write(1, "executing program\n", 18) = 18 [pid 6350] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6350] <... bpf resumed>) = 3 [pid 6349] <... bpf resumed>) = 4 [pid 6350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6349] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6350] <... bpf resumed>) = 4 [pid 6350] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6348] <... bpf resumed>) = 5 [pid 6346] +++ exited with 0 +++ [pid 6348] exit_group(0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6348] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6351 attached , child_tidptr=0x55556540f650) = 6351 [pid 6351] set_robust_list(0x55556540f660, 24 [pid 6350] <... bpf resumed>) = 5 [pid 6349] <... bpf resumed>) = 5 [pid 6348] +++ exited with 0 +++ [pid 6347] +++ exited with 0 +++ [pid 6351] <... set_robust_list resumed>) = 0 [pid 6349] exit_group(0 [pid 6351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6350] exit_group(0 [pid 6349] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6347, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6348, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6351] <... prctl resumed>) = 0 [pid 6350] <... exit_group resumed>) = ? [pid 6351] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6352 attached [pid 6351] <... setpgid resumed>) = 0 [pid 6352] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6353 attached ) = 0 [pid 6351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6350] +++ exited with 0 +++ [pid 6349] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6352 [pid 6353] set_robust_list(0x55556540f660, 24 [pid 6352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6351] <... openat resumed>) = 3 [pid 6353] <... set_robust_list resumed>) = 0 [pid 6352] <... prctl resumed>) = 0 [pid 6353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6352] setpgid(0, 0 [pid 6353] <... prctl resumed>) = 0 [pid 6352] <... setpgid resumed>) = 0 [pid 6353] setpgid(0, 0 [pid 6352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6351] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6350, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6353 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6349, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6353] <... setpgid resumed>) = 0 [pid 6352] <... openat resumed>) = 3 [pid 6353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6351] <... write resumed>) = 4 [pid 6353] <... openat resumed>) = 3 [pid 6352] write(3, "1000", 4 [pid 6353] write(3, "1000", 4executing program executing program [pid 6352] <... write resumed>) = 4 [pid 6351] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6353] <... write resumed>) = 4 [pid 6352] close(3 [pid 6351] <... close resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6353] close(3 [pid 6352] <... close resumed>) = 0 [pid 6353] <... close resumed>) = 0 [pid 6353] write(1, "executing program\n", 18 [pid 6352] write(1, "executing program\n", 18 [pid 6353] <... write resumed>) = 18 [pid 6353] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6352] <... write resumed>) = 18 ./strace-static-x86_64: Process 6355 attached ./strace-static-x86_64: Process 6354 attached [pid 6353] <... bpf resumed>) = 3 [pid 6352] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6351] write(1, "executing program\n", 18 [pid 6354] set_robust_list(0x55556540f660, 24) = 0 executing program [pid 6353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6351] <... write resumed>) = 18 [pid 6355] set_robust_list(0x55556540f660, 24 [pid 6354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6351] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6355 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6354 [pid 6355] <... set_robust_list resumed>) = 0 [pid 6355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6353] <... bpf resumed>) = 4 [pid 6351] <... bpf resumed>) = 3 [pid 6354] <... prctl resumed>) = 0 [pid 6354] setpgid(0, 0) = 0 [pid 6354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6353] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6355] <... prctl resumed>) = 0 [pid 6351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6355] setpgid(0, 0) = 0 [pid 6354] <... openat resumed>) = 3 [pid 6353] <... bpf resumed>) = 5 [pid 6352] <... bpf resumed>) = 3 [pid 6351] <... bpf resumed>) = 4 [pid 6354] write(3, "1000", 4 [pid 6352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6354] <... write resumed>) = 4 [pid 6353] exit_group(0 [pid 6352] <... bpf resumed>) = 4 [pid 6351] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6355] <... openat resumed>) = 3 [pid 6354] close(3 [pid 6353] <... exit_group resumed>) = ? [pid 6355] write(3, "1000", 4 [pid 6354] <... close resumed>) = 0 [pid 6351] <... bpf resumed>) = 5 [pid 6355] <... write resumed>) = 4 [pid 6355] close(3executing program ) = 0 [pid 6354] write(1, "executing program\n", 18 [pid 6352] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6355] write(1, "executing program\n", 18executing program [pid 6354] <... write resumed>) = 18 [pid 6351] exit_group(0 [pid 6355] <... write resumed>) = 18 [pid 6354] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6351] <... exit_group resumed>) = ? [pid 6355] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6354] <... bpf resumed>) = 3 [pid 6354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6355] <... bpf resumed>) = 3 [pid 6354] <... bpf resumed>) = 4 [pid 6353] +++ exited with 0 +++ [pid 6352] <... bpf resumed>) = 5 [pid 6355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6352] exit_group(0 [pid 6354] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6355] <... bpf resumed>) = 4 [pid 6352] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6355] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6356 attached [pid 6356] set_robust_list(0x55556540f660, 24 [pid 6354] <... bpf resumed>) = 5 [pid 6351] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6356 [pid 6356] <... set_robust_list resumed>) = 0 [pid 6354] exit_group(0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6351, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6354] <... exit_group resumed>) = ? [pid 6356] setpgid(0, 0) = 0 [pid 6356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6356] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6357 attached [pid 6356] write(3, "1000", 4 [pid 6357] set_robust_list(0x55556540f660, 24 [pid 6356] <... write resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6357 [pid 6357] <... set_robust_list resumed>) = 0 executing program [pid 6356] close(3 [pid 6357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6356] <... close resumed>) = 0 [pid 6357] <... prctl resumed>) = 0 [pid 6356] write(1, "executing program\n", 18 [pid 6357] setpgid(0, 0 [pid 6356] <... write resumed>) = 18 [pid 6356] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6357] <... setpgid resumed>) = 0 [pid 6356] <... bpf resumed>) = 3 [pid 6357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6352] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6357] <... openat resumed>) = 3 [pid 6355] <... bpf resumed>) = 5 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6357] write(3, "1000", 4) = 4 [pid 6357] close(3 [pid 6355] exit_group(0 [pid 6357] <... close resumed>) = 0 [pid 6357] write(1, "executing program\n", 18 executing program [pid 6355] <... exit_group resumed>) = ? [pid 6357] <... write resumed>) = 18 [pid 6357] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6356] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6357] <... bpf resumed>) = 4 [pid 6356] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6357] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6358 attached [pid 6355] +++ exited with 0 +++ [pid 6354] +++ exited with 0 +++ [pid 6358] set_robust_list(0x55556540f660, 24) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6358 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6355, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6358] setpgid(0, 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6358] <... setpgid resumed>) = 0 [pid 6358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6359 attached ) = 3 [pid 6359] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6360 attached [pid 6358] write(3, "1000", 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6359 [pid 6360] set_robust_list(0x55556540f660, 24 [pid 6359] <... set_robust_list resumed>) = 0 [pid 6358] <... write resumed>) = 4 [pid 6357] <... bpf resumed>) = 5 [pid 6356] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6360 [pid 6360] <... set_robust_list resumed>) = 0 [pid 6359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6357] exit_group(0 [pid 6360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6358] close(3 [pid 6360] <... prctl resumed>) = 0 [pid 6359] <... prctl resumed>) = 0 [pid 6357] <... exit_group resumed>) = ? [pid 6356] exit_group(0 [pid 6358] <... close resumed>) = 0 [pid 6359] setpgid(0, 0 [pid 6358] write(1, "executing program\n", 18 [pid 6360] setpgid(0, 0) = 0 [pid 6360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 6357] +++ exited with 0 +++ [pid 6356] <... exit_group resumed>) = ? [pid 6359] <... setpgid resumed>) = 0 [pid 6358] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6357, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6360] <... openat resumed>) = 3 [pid 6359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6360] write(3, "1000", 4 [pid 6358] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6360] <... write resumed>) = 4 [pid 6356] +++ exited with 0 +++ [pid 6360] close(3 [pid 6359] <... openat resumed>) = 3 [pid 6358] <... bpf resumed>) = 3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6360] <... close resumed>) = 0 executing program [pid 6359] write(3, "1000", 4 [pid 6358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6360] write(1, "executing program\n", 18 [pid 6359] <... write resumed>) = 4 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6360] <... write resumed>) = 18 [pid 6359] close(3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6360] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6359] <... close resumed>) = 0 [pid 6358] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6361 attached [pid 6360] <... bpf resumed>) = 3 executing program [pid 6359] write(1, "executing program\n", 18 [pid 6358] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6359] <... write resumed>) = 18 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6361 [pid 6361] set_robust_list(0x55556540f660, 24 [pid 6360] <... bpf resumed>) = 4 [pid 6359] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6361] <... set_robust_list resumed>) = 0 [pid 6360] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6359] <... bpf resumed>) = 3 [pid 6361] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6362 attached ) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6362 [pid 6361] setpgid(0, 0 [pid 6359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6362] set_robust_list(0x55556540f660, 24 [pid 6361] <... setpgid resumed>) = 0 [pid 6362] <... set_robust_list resumed>) = 0 [pid 6361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6359] <... bpf resumed>) = 4 [pid 6362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6359] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6362] <... prctl resumed>) = 0 [pid 6362] setpgid(0, 0 [pid 6361] <... openat resumed>) = 3 [pid 6362] <... setpgid resumed>) = 0 [pid 6361] write(3, "1000", 4 [pid 6362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6361] <... write resumed>) = 4 [pid 6362] <... openat resumed>) = 3 [pid 6361] close(3 [pid 6362] write(3, "1000", 4 [pid 6361] <... close resumed>) = 0 [pid 6362] <... write resumed>) = 4 executing program [pid 6361] write(1, "executing program\n", 18 [pid 6362] close(3 [pid 6361] <... write resumed>) = 18 [pid 6362] <... close resumed>) = 0 [pid 6361] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6362] write(1, "executing program\n", 18executing program ) = 18 [pid 6361] <... bpf resumed>) = 3 [pid 6362] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6360] <... bpf resumed>) = 5 [pid 6359] <... bpf resumed>) = 5 [pid 6358] <... bpf resumed>) = 5 [pid 6362] <... bpf resumed>) = 3 [pid 6361] <... bpf resumed>) = 4 [pid 6360] exit_group(0 [pid 6358] exit_group(0 [pid 6359] exit_group(0 [pid 6362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6360] <... exit_group resumed>) = ? [pid 6358] <... exit_group resumed>) = ? [pid 6362] <... bpf resumed>) = 4 [pid 6361] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6360] +++ exited with 0 +++ [pid 6359] <... exit_group resumed>) = ? [pid 6362] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6358] +++ exited with 0 +++ [pid 6362] <... bpf resumed>) = 5 [pid 6361] <... bpf resumed>) = 5 [pid 6359] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6362] exit_group(0 [pid 6361] exit_group(0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6362] <... exit_group resumed>) = ? [pid 6361] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6363 attached [pid 6363] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6363 ./strace-static-x86_64: Process 6364 attached [pid 6363] <... set_robust_list resumed>) = 0 [pid 6364] set_robust_list(0x55556540f660, 24 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6365 attached [pid 6364] <... set_robust_list resumed>) = 0 [pid 6363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6364 [pid 6365] set_robust_list(0x55556540f660, 24 [pid 6364] <... prctl resumed>) = 0 [pid 6363] setpgid(0, 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6365 [pid 6365] <... set_robust_list resumed>) = 0 [pid 6364] setpgid(0, 0 [pid 6363] <... setpgid resumed>) = 0 [pid 6365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6364] <... setpgid resumed>) = 0 [pid 6363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6365] <... prctl resumed>) = 0 [pid 6365] setpgid(0, 0 [pid 6364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6363] <... openat resumed>) = 3 [pid 6365] <... setpgid resumed>) = 0 [pid 6364] <... openat resumed>) = 3 [pid 6365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6363] write(3, "1000", 4 [pid 6364] write(3, "1000", 4 [pid 6365] <... openat resumed>) = 3 [pid 6361] +++ exited with 0 +++ [pid 6362] +++ exited with 0 +++ [pid 6364] <... write resumed>) = 4 [pid 6364] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6365] write(3, "1000", 4 [pid 6363] <... write resumed>) = 4 [pid 6365] <... write resumed>) = 4 [pid 6363] close(3 [pid 6365] close(3 [pid 6363] <... close resumed>) = 0 [pid 6365] <... close resumed>) = 0 executing program [pid 6363] write(1, "executing program\n", 18 executing program [pid 6365] write(1, "executing program\n", 18 [pid 6363] <... write resumed>) = 18 [pid 6365] <... write resumed>) = 18 [pid 6363] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6365] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6364] <... close resumed>) = 0 [pid 6363] <... bpf resumed>) = 3 [pid 6365] <... bpf resumed>) = 3 [pid 6363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6364] write(1, "executing program\n", 18) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6363] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6366 attached [pid 6365] <... bpf resumed>) = 4 [pid 6364] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6367 attached [pid 6365] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6364] <... bpf resumed>) = 3 [pid 6363] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6367] set_robust_list(0x55556540f660, 24 [pid 6366] set_robust_list(0x55556540f660, 24 [pid 6364] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6366 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6367 [pid 6367] <... set_robust_list resumed>) = 0 [pid 6366] <... set_robust_list resumed>) = 0 [pid 6367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6365] <... bpf resumed>) = 5 [pid 6364] <... bpf resumed>) = 4 [pid 6363] <... bpf resumed>) = 5 [pid 6367] setpgid(0, 0 [pid 6366] <... prctl resumed>) = 0 [pid 6364] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6363] exit_group(0 [pid 6367] <... setpgid resumed>) = 0 [pid 6366] setpgid(0, 0 [pid 6365] exit_group(0 [pid 6364] <... bpf resumed>) = 5 [pid 6363] <... exit_group resumed>) = ? [pid 6367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6366] <... setpgid resumed>) = 0 [pid 6364] exit_group(0 [pid 6363] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6364] <... exit_group resumed>) = ? [pid 6367] <... openat resumed>) = 3 [pid 6365] <... exit_group resumed>) = ? [pid 6365] +++ exited with 0 +++ [pid 6364] +++ exited with 0 +++ [pid 6366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6367] write(3, "1000", 4 [pid 6366] <... openat resumed>) = 3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6367] <... write resumed>) = 4 [pid 6367] close(3executing program ) = 0 [pid 6367] write(1, "executing program\n", 18) = 18 [pid 6367] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6366] write(3, "1000", 4) = 4 [pid 6366] close(3 [pid 6367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6366] <... close resumed>) = 0 [pid 6367] <... bpf resumed>) = 4 executing program [pid 6366] write(1, "executing program\n", 18 [pid 6367] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6366] <... write resumed>) = 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6366] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6367] <... bpf resumed>) = 5 [pid 6366] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6367] exit_group(0 [pid 6366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6368 attached [pid 6367] <... exit_group resumed>) = ? [pid 6368] set_robust_list(0x55556540f660, 24 [pid 6367] +++ exited with 0 +++ [pid 6366] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6369 [pid 6368] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6369 attached ./strace-static-x86_64: Process 6370 attached [pid 6368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6366] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6368 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6369] set_robust_list(0x55556540f660, 24 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6370] set_robust_list(0x55556540f660, 24 [pid 6369] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6370 [pid 6369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6370] <... set_robust_list resumed>) = 0 [pid 6368] <... prctl resumed>) = 0 [pid 6366] <... bpf resumed>) = 5 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6369] <... prctl resumed>) = 0 [pid 6368] setpgid(0, 0 [pid 6370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6369] setpgid(0, 0 [pid 6368] <... setpgid resumed>) = 0 [pid 6370] <... prctl resumed>) = 0 [pid 6369] <... setpgid resumed>) = 0 [pid 6366] exit_group(0 [pid 6370] setpgid(0, 0 [pid 6369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6370] <... setpgid resumed>) = 0 [pid 6366] <... exit_group resumed>) = ? [pid 6369] <... openat resumed>) = 3 [pid 6370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6371 attached [pid 6368] <... openat resumed>) = 3 [pid 6366] +++ exited with 0 +++ [pid 6371] set_robust_list(0x55556540f660, 24 [pid 6369] write(3, "1000", 4 [pid 6368] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6371] <... set_robust_list resumed>) = 0 [pid 6369] <... write resumed>) = 4 [pid 6368] <... write resumed>) = 4 [pid 6371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6370] <... openat resumed>) = 3 [pid 6369] close(3 [pid 6368] close(3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6371 [pid 6371] <... prctl resumed>) = 0 [pid 6370] write(3, "1000", 4 [pid 6369] <... close resumed>) = 0 [pid 6368] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6372 attached [pid 6371] setpgid(0, 0 [pid 6370] <... write resumed>) = 4 executing program [pid 6369] write(1, "executing program\n", 18 [pid 6368] write(1, "executing program\n", 18 [pid 6371] <... setpgid resumed>) = 0 [pid 6369] <... write resumed>) = 18 executing program [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6372 [pid 6371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6370] close(3 [pid 6369] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6368] <... write resumed>) = 18 [pid 6372] set_robust_list(0x55556540f660, 24 [pid 6371] <... openat resumed>) = 3 [pid 6370] <... close resumed>) = 0 [pid 6372] <... set_robust_list resumed>) = 0 executing program [pid 6372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6371] write(3, "1000", 4 [pid 6370] write(1, "executing program\n", 18 [pid 6369] <... bpf resumed>) = 3 [pid 6368] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6372] <... prctl resumed>) = 0 [pid 6371] <... write resumed>) = 4 [pid 6370] <... write resumed>) = 18 [pid 6372] setpgid(0, 0 [pid 6371] close(3 [pid 6369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6372] <... setpgid resumed>) = 0 [pid 6371] <... close resumed>) = 0 [pid 6370] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6369] <... bpf resumed>) = 4 [pid 6368] <... bpf resumed>) = 3 [pid 6372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6371] write(1, "executing program\n", 18) = 18 [pid 6370] <... bpf resumed>) = 3 [pid 6371] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6369] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6372] <... openat resumed>) = 3 [pid 6369] <... bpf resumed>) = 5 [pid 6372] write(3, "1000", 4 [pid 6371] <... bpf resumed>) = 3 [pid 6370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6372] <... write resumed>) = 4 [pid 6371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6369] exit_group(0 [pid 6372] close(3 [pid 6371] <... bpf resumed>) = 4 [pid 6370] <... bpf resumed>) = 4 [pid 6369] <... exit_group resumed>) = ? [pid 6368] <... bpf resumed>) = 4 [pid 6372] <... close resumed>) = 0 [pid 6371] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6370] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6369] +++ exited with 0 +++ [pid 6368] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6372] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6372] <... write resumed>) = 18 [pid 6372] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6372] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6373 attached [pid 6373] set_robust_list(0x55556540f660, 24) = 0 [pid 6372] <... bpf resumed>) = 5 [pid 6371] <... bpf resumed>) = 5 [pid 6370] <... bpf resumed>) = 5 [pid 6368] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6373 [pid 6373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6372] exit_group(0 [pid 6371] exit_group(0 [pid 6370] exit_group(0 [pid 6368] exit_group(0 [pid 6373] <... prctl resumed>) = 0 [pid 6372] <... exit_group resumed>) = ? [pid 6371] <... exit_group resumed>) = ? [pid 6370] <... exit_group resumed>) = ? [pid 6368] <... exit_group resumed>) = ? [pid 6373] setpgid(0, 0 [pid 6372] +++ exited with 0 +++ [pid 6371] +++ exited with 0 +++ [pid 6373] <... setpgid resumed>) = 0 [pid 6373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6373] <... openat resumed>) = 3 [pid 6373] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... restart_syscall resumed>) = 0 [pid 6373] <... write resumed>) = 4 executing program [pid 6373] close(3) = 0 [pid 6368] +++ exited with 0 +++ [pid 6373] write(1, "executing program\n", 18) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6370] +++ exited with 0 +++ [pid 6373] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6370, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6373] <... bpf resumed>) = 3 [pid 6373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6374 attached [pid 6374] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6374 [pid 6374] <... set_robust_list resumed>) = 0 [pid 6374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6373] <... bpf resumed>) = 4 [pid 6373] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6374] <... prctl resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6374] setpgid(0, 0) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6375 attached [pid 6373] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6376 attached [pid 6375] set_robust_list(0x55556540f660, 24 [pid 6374] <... openat resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6375 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6375] <... set_robust_list resumed>) = 0 [pid 6373] exit_group(0 [pid 6375] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6377 attached [pid 6376] set_robust_list(0x55556540f660, 24 [pid 6375] <... prctl resumed>) = 0 [pid 6374] write(3, "1000", 4 [pid 6373] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6376 [pid 6377] set_robust_list(0x55556540f660, 24 [pid 6376] <... set_robust_list resumed>) = 0 [pid 6375] setpgid(0, 0 [pid 6374] <... write resumed>) = 4 [pid 6377] <... set_robust_list resumed>) = 0 [pid 6376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6375] <... setpgid resumed>) = 0 [pid 6374] close(3 [pid 6373] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6377 [pid 6377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6376] <... prctl resumed>) = 0 [pid 6375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6374] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6374] write(1, "executing program\n", 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6374] <... write resumed>) = 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6374] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6377] <... prctl resumed>) = 0 [pid 6376] setpgid(0, 0 [pid 6375] <... openat resumed>) = 3 [pid 6374] <... bpf resumed>) = 3 [pid 6377] setpgid(0, 0 [pid 6375] write(3, "1000", 4 [pid 6376] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6378 attached [pid 6377] <... setpgid resumed>) = 0 [pid 6376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6375] <... write resumed>) = 4 [pid 6374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6378] set_robust_list(0x55556540f660, 24 [pid 6377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6376] <... openat resumed>) = 3 [pid 6375] close(3 [pid 6374] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6378 [pid 6378] <... set_robust_list resumed>) = 0 [pid 6374] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6377] <... openat resumed>) = 3 [pid 6376] write(3, "1000", 4 [pid 6375] <... close resumed>) = 0 executing program [pid 6378] <... prctl resumed>) = 0 [pid 6375] write(1, "executing program\n", 18 [pid 6377] write(3, "1000", 4 [pid 6376] <... write resumed>) = 4 [pid 6375] <... write resumed>) = 18 [pid 6377] <... write resumed>) = 4 [pid 6376] close(3 [pid 6377] close(3 [pid 6376] <... close resumed>) = 0 [pid 6377] <... close resumed>) = 0 executing program [pid 6376] write(1, "executing program\n", 18 executing program [pid 6377] write(1, "executing program\n", 18 [pid 6376] <... write resumed>) = 18 [pid 6377] <... write resumed>) = 18 [pid 6376] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6378] setpgid(0, 0 [pid 6377] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6375] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6374] <... bpf resumed>) = 5 [pid 6378] <... setpgid resumed>) = 0 [pid 6377] <... bpf resumed>) = 3 [pid 6376] <... bpf resumed>) = 3 [pid 6375] <... bpf resumed>) = 3 [pid 6374] exit_group(0 [pid 6377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6374] <... exit_group resumed>) = ? [pid 6378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6378] <... openat resumed>) = 3 [pid 6377] <... bpf resumed>) = 4 [pid 6376] <... bpf resumed>) = 4 [pid 6374] +++ exited with 0 +++ [pid 6378] write(3, "1000", 4 [pid 6377] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6375] <... bpf resumed>) = 4 [pid 6376] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6378] <... write resumed>) = 4 [pid 6375] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6378] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6378] <... close resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6378] write(1, "executing program\n", 18executing program ) = 18 [pid 6378] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6378] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6379 attached [pid 6377] <... bpf resumed>) = 5 [pid 6376] <... bpf resumed>) = 5 [pid 6375] <... bpf resumed>) = 5 [pid 6379] set_robust_list(0x55556540f660, 24 [pid 6378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6377] exit_group(0 [pid 6376] exit_group(0 [pid 6375] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6379 [pid 6379] <... set_robust_list resumed>) = 0 [pid 6378] <... bpf resumed>) = 4 [pid 6377] <... exit_group resumed>) = ? [pid 6376] <... exit_group resumed>) = ? [pid 6375] <... exit_group resumed>) = ? [pid 6379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6377] +++ exited with 0 +++ [pid 6375] +++ exited with 0 +++ [pid 6379] <... prctl resumed>) = 0 [pid 6378] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6379] setpgid(0, 0 [pid 6378] <... bpf resumed>) = 5 [pid 6379] <... setpgid resumed>) = 0 [pid 6379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6377, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6379] <... openat resumed>) = 3 [pid 6378] exit_group(0 [pid 6379] write(3, "1000", 4 [pid 6378] <... exit_group resumed>) = ? [pid 6379] <... write resumed>) = 4 [pid 6379] close(3) = 0 executing program [pid 6379] write(1, "executing program\n", 18) = 18 [pid 6379] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6379] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6380 attached [pid 6380] set_robust_list(0x55556540f660, 24 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6380] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6380 ./strace-static-x86_64: Process 6381 attached [pid 6380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6378] +++ exited with 0 +++ [pid 6376] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6381 [pid 6381] set_robust_list(0x55556540f660, 24 [pid 6380] <... prctl resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6381] <... set_robust_list resumed>) = 0 [pid 6380] setpgid(0, 0 [pid 6381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6380] <... setpgid resumed>) = 0 [pid 6381] <... prctl resumed>) = 0 [pid 6381] setpgid(0, 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6381] <... setpgid resumed>) = 0 [pid 6380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6382 attached [pid 6382] set_robust_list(0x55556540f660, 24 [pid 6381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6383 attached [pid 6382] <... set_robust_list resumed>) = 0 [pid 6382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6380] <... openat resumed>) = 3 [pid 6381] <... openat resumed>) = 3 [pid 6380] write(3, "1000", 4 [pid 6383] set_robust_list(0x55556540f660, 24 [pid 6380] <... write resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6382 [pid 6383] <... set_robust_list resumed>) = 0 [pid 6381] write(3, "1000", 4 [pid 6380] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6383 [pid 6383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6382] <... prctl resumed>) = 0 [pid 6381] <... write resumed>) = 4 [pid 6380] <... close resumed>) = 0 [pid 6382] setpgid(0, 0) = 0 [pid 6383] <... prctl resumed>) = 0 [pid 6382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6381] close(3 [pid 6380] write(1, "executing program\n", 18 [pid 6383] setpgid(0, 0 [pid 6382] <... openat resumed>) = 3 [pid 6381] <... close resumed>) = 0 [pid 6380] <... write resumed>) = 18 [pid 6383] <... setpgid resumed>) = 0 [pid 6381] write(1, "executing program\n", 18 [pid 6380] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6382] write(3, "1000", 4executing program executing program ) = 4 [pid 6379] <... bpf resumed>) = 5 [pid 6382] close(3) = 0 [pid 6381] <... write resumed>) = 18 [pid 6383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6382] write(1, "executing program\n", 18) = 18 [pid 6381] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6380] <... bpf resumed>) = 3 [pid 6379] exit_group(0 [pid 6383] <... openat resumed>) = 3 [pid 6382] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6383] write(3, "1000", 4 [pid 6382] <... bpf resumed>) = 3 [pid 6381] <... bpf resumed>) = 3 [pid 6380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6379] <... exit_group resumed>) = ? [pid 6383] <... write resumed>) = 4 [pid 6382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6380] <... bpf resumed>) = 4 [pid 6379] +++ exited with 0 +++ [pid 6383] close(3 [pid 6382] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6379, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6383] <... close resumed>) = 0 [pid 6383] write(1, "executing program\n", 18 [pid 6382] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6381] <... bpf resumed>) = 4 [pid 6380] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 6384 attached [pid 6383] <... write resumed>) = 18 [pid 6381] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6384] set_robust_list(0x55556540f660, 24 [pid 6383] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6384] <... set_robust_list resumed>) = 0 [pid 6383] <... bpf resumed>) = 3 [pid 6384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6384 [pid 6384] <... prctl resumed>) = 0 [pid 6384] setpgid(0, 0 [pid 6383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6382] <... bpf resumed>) = 5 [pid 6381] <... bpf resumed>) = 5 [pid 6380] <... bpf resumed>) = 5 [pid 6384] <... setpgid resumed>) = 0 [pid 6383] <... bpf resumed>) = 4 [pid 6382] exit_group(0 [pid 6381] exit_group(0 [pid 6382] <... exit_group resumed>) = ? [pid 6380] exit_group(0 [pid 6384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6383] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6382] +++ exited with 0 +++ [pid 6381] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6383] <... bpf resumed>) = 5 [pid 6380] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6383] exit_group(0 [pid 6380] +++ exited with 0 +++ [pid 6383] <... exit_group resumed>) = ? [pid 6384] <... openat resumed>) = 3 [pid 6384] write(3, "1000", 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6384] <... write resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6384] close(3) = 0 [pid 6384] write(1, "executing program\n", 18executing program ) = 18 [pid 6384] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6384] <... bpf resumed>) = 3 [pid 6383] +++ exited with 0 +++ [pid 6381] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6385 attached [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6381, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6385] set_robust_list(0x55556540f660, 24 [pid 6384] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6385 [pid 6385] <... set_robust_list resumed>) = 0 [pid 6385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6385] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6386 attached [pid 6384] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6388 attached ./strace-static-x86_64: Process 6387 attached [pid 6386] set_robust_list(0x55556540f660, 24 [pid 6385] <... openat resumed>) = 3 [pid 6384] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6386 [pid 6386] <... set_robust_list resumed>) = 0 [pid 6385] write(3, "1000", 4 [pid 6388] set_robust_list(0x55556540f660, 24 [pid 6387] set_robust_list(0x55556540f660, 24 [pid 6386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6385] <... write resumed>) = 4 [pid 6384] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6388 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6387 [pid 6388] <... set_robust_list resumed>) = 0 [pid 6386] <... prctl resumed>) = 0 [pid 6385] close(3 [pid 6387] <... set_robust_list resumed>) = 0 [pid 6388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6386] setpgid(0, 0 [pid 6385] <... close resumed>) = 0 [pid 6384] <... exit_group resumed>) = ? [pid 6388] <... prctl resumed>) = 0 [pid 6387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6386] <... setpgid resumed>) = 0 executing program [pid 6385] write(1, "executing program\n", 18 [pid 6384] +++ exited with 0 +++ [pid 6388] setpgid(0, 0 [pid 6387] <... prctl resumed>) = 0 [pid 6386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6385] <... write resumed>) = 18 [pid 6388] <... setpgid resumed>) = 0 [pid 6387] setpgid(0, 0 [pid 6386] <... openat resumed>) = 3 [pid 6385] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6387] <... setpgid resumed>) = 0 [pid 6386] write(3, "1000", 4 [pid 6385] <... bpf resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6386] <... write resumed>) = 4 [pid 6385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6386] close(3 [pid 6385] <... bpf resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6386] <... close resumed>) = 0 [pid 6388] <... openat resumed>) = 3 [pid 6388] write(3, "1000", 4 [pid 6386] write(1, "executing program\n", 18executing program [pid 6388] <... write resumed>) = 4 [pid 6387] <... openat resumed>) = 3 [pid 6386] <... write resumed>) = 18 [pid 6385] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6388] close(3 [pid 6386] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6388] <... close resumed>) = 0 [pid 6387] write(3, "1000", 4 [pid 6386] <... bpf resumed>) = 3 [pid 6385] <... bpf resumed>) = 5 executing program [pid 6388] write(1, "executing program\n", 18 [pid 6387] <... write resumed>) = 4 [pid 6388] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6387] close(3 [pid 6388] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6387] <... close resumed>) = 0 [pid 6386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6385] exit_group(0./strace-static-x86_64: Process 6389 attached [pid 6388] <... bpf resumed>) = 3 [pid 6387] write(1, "executing program\n", 18 [pid 6386] <... bpf resumed>) = 4 [pid 6385] <... exit_group resumed>) = ? executing program [pid 6389] set_robust_list(0x55556540f660, 24 [pid 6388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6387] <... write resumed>) = 18 [pid 6385] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6389 [pid 6389] <... set_robust_list resumed>) = 0 [pid 6386] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6389] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6387] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6389] <... prctl resumed>) = 0 [pid 6388] <... bpf resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6389] setpgid(0, 0 [pid 6387] <... bpf resumed>) = 3 [pid 6389] <... setpgid resumed>) = 0 [pid 6387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6388] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6389] write(3, "1000", 4) = 4 [pid 6387] <... bpf resumed>) = 4 [pid 6389] close(3) = 0 [pid 6387] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 executing program [pid 6389] write(1, "executing program\n", 18) = 18 [pid 6389] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6389] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6389] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6390 attached [pid 6388] <... bpf resumed>) = 5 [pid 6387] <... bpf resumed>) = 5 [pid 6386] <... bpf resumed>) = 5 [pid 6390] set_robust_list(0x55556540f660, 24 [pid 6389] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6388] exit_group(0 [pid 6387] exit_group(0 [pid 6386] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6390 [pid 6390] <... set_robust_list resumed>) = 0 [pid 6387] <... exit_group resumed>) = ? [pid 6390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6388] <... exit_group resumed>) = ? [pid 6386] <... exit_group resumed>) = ? [pid 6390] <... prctl resumed>) = 0 [pid 6390] setpgid(0, 0) = 0 [pid 6390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6390] write(3, "1000", 4) = 4 [pid 6389] <... bpf resumed>) = 5 [pid 6387] +++ exited with 0 +++ [pid 6390] close(3 [pid 6386] +++ exited with 0 +++ executing program [pid 6390] <... close resumed>) = 0 [pid 6389] exit_group(0 [pid 6390] write(1, "executing program\n", 18) = 18 [pid 6389] <... exit_group resumed>) = ? [pid 6390] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6390] <... bpf resumed>) = 3 [pid 6390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6390] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6391 attached [pid 6391] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6392 attached [pid 6389] +++ exited with 0 +++ [pid 6388] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6391 [pid 6392] set_robust_list(0x55556540f660, 24 [pid 6391] <... set_robust_list resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6389, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6392] <... set_robust_list resumed>) = 0 [pid 6391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6391] <... prctl resumed>) = 0 [pid 6391] setpgid(0, 0 [pid 6392] <... prctl resumed>) = 0 [pid 6390] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6392 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6393 attached [pid 6392] setpgid(0, 0 [pid 6391] <... setpgid resumed>) = 0 [pid 6390] exit_group(0 [pid 6392] <... setpgid resumed>) = 0 [pid 6391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6390] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6393] set_robust_list(0x55556540f660, 24 [pid 6392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6391] <... openat resumed>) = 3 [pid 6392] <... openat resumed>) = 3 [pid 6391] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6393 [pid 6391] <... write resumed>) = 4 ./strace-static-x86_64: Process 6394 attached [pid 6393] <... set_robust_list resumed>) = 0 [pid 6392] write(3, "1000", 4 [pid 6391] close(3 [pid 6392] <... write resumed>) = 4 [pid 6391] <... close resumed>) = 0 [pid 6394] set_robust_list(0x55556540f660, 24 [pid 6392] close(3 [pid 6391] write(1, "executing program\n", 18 [pid 6394] <... set_robust_list resumed>) = 0 executing program [pid 6392] <... close resumed>) = 0 [pid 6391] <... write resumed>) = 18 [pid 6394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6392] write(1, "executing program\n", 18 [pid 6391] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6390] +++ exited with 0 +++ [pid 6393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6392] <... write resumed>) = 18 [pid 6394] <... prctl resumed>) = 0 [pid 6393] <... prctl resumed>) = 0 [pid 6391] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6394 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6392] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6393] setpgid(0, 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6394] setpgid(0, 0 [pid 6392] <... bpf resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6394] <... setpgid resumed>) = 0 [pid 6393] <... setpgid resumed>) = 0 [pid 6392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6392] <... bpf resumed>) = 4 [pid 6394] <... openat resumed>) = 3 [pid 6392] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6394] write(3, "1000", 4 [pid 6393] <... openat resumed>) = 3 executing program [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6393] write(3, "1000", 4 [pid 6394] <... write resumed>) = 4 [pid 6394] close(3) = 0 [pid 6394] write(1, "executing program\n", 18) = 18 [pid 6394] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6395 attached ) = 3 [pid 6394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6395] set_robust_list(0x55556540f660, 24 [pid 6394] <... bpf resumed>) = 4 [pid 6393] <... write resumed>) = 4 [pid 6391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6395] <... set_robust_list resumed>) = 0 [pid 6394] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6393] close(3 [pid 6391] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6395 [pid 6395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6393] <... close resumed>) = 0 executing program [pid 6395] <... prctl resumed>) = 0 [pid 6393] write(1, "executing program\n", 18) = 18 [pid 6391] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6395] setpgid(0, 0 [pid 6393] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6395] <... setpgid resumed>) = 0 [pid 6393] <... bpf resumed>) = 3 [pid 6393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6394] <... bpf resumed>) = 5 [pid 6392] <... bpf resumed>) = 5 [pid 6391] <... bpf resumed>) = 5 [pid 6395] <... openat resumed>) = 3 [pid 6395] write(3, "1000", 4) = 4 [pid 6394] exit_group(0 [pid 6393] <... bpf resumed>) = 4 [pid 6392] exit_group(0 [pid 6391] exit_group(0 [pid 6395] close(3 [pid 6394] <... exit_group resumed>) = ? [pid 6392] <... exit_group resumed>) = ? [pid 6391] <... exit_group resumed>) = ? [pid 6395] <... close resumed>) = 0 [pid 6394] +++ exited with 0 +++ [pid 6393] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6395] write(1, "executing program\n", 18executing program ) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6395] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6395] <... bpf resumed>) = 3 [pid 6392] +++ exited with 0 +++ [pid 6395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6391] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6395] <... bpf resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6395] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6397 attached ./strace-static-x86_64: Process 6396 attached [pid 6396] set_robust_list(0x55556540f660, 24) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6397 [pid 6396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6397] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6396 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6397] <... set_robust_list resumed>) = 0 [pid 6396] <... prctl resumed>) = 0 [pid 6396] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6398 attached [pid 6397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6398] set_robust_list(0x55556540f660, 24 [pid 6397] <... prctl resumed>) = 0 [pid 6396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6398 [pid 6398] <... set_robust_list resumed>) = 0 [pid 6397] setpgid(0, 0 [pid 6398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6397] <... setpgid resumed>) = 0 [pid 6396] <... openat resumed>) = 3 [pid 6393] <... bpf resumed>) = 5 [pid 6395] <... bpf resumed>) = 5 [pid 6398] <... prctl resumed>) = 0 [pid 6397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6393] exit_group(0 [pid 6396] write(3, "1000", 4 [pid 6393] <... exit_group resumed>) = ? [pid 6398] setpgid(0, 0 [pid 6395] exit_group(0) = ? [pid 6398] <... setpgid resumed>) = 0 [pid 6397] <... openat resumed>) = 3 [pid 6396] <... write resumed>) = 4 [pid 6398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6397] write(3, "1000", 4 [pid 6396] close(3 [pid 6398] <... openat resumed>) = 3 [pid 6397] <... write resumed>) = 4 [pid 6396] <... close resumed>) = 0 [pid 6398] write(3, "1000", 4 [pid 6397] close(3 [pid 6396] write(1, "executing program\n", 18executing program [pid 6398] <... write resumed>) = 4 [pid 6397] <... close resumed>) = 0 [pid 6396] <... write resumed>) = 18 [pid 6398] close(3 [pid 6397] write(1, "executing program\n", 18executing program [pid 6396] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6398] <... close resumed>) = 0 [pid 6397] <... write resumed>) = 18 [pid 6396] <... bpf resumed>) = 3 [pid 6398] write(1, "executing program\n", 18 [pid 6397] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6396] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6398] <... write resumed>) = 18 [pid 6397] <... bpf resumed>) = 3 [pid 6396] <... bpf resumed>) = 4 [pid 6398] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6398] <... bpf resumed>) = 3 [pid 6397] <... bpf resumed>) = 4 [pid 6396] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6397] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6398] <... bpf resumed>) = 4 [pid 6398] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6395] +++ exited with 0 +++ [pid 6393] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6400 attached ./strace-static-x86_64: Process 6399 attached [pid 6399] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6400 [pid 6400] set_robust_list(0x55556540f660, 24 [pid 6399] <... set_robust_list resumed>) = 0 [pid 6398] <... bpf resumed>) = 5 [pid 6397] <... bpf resumed>) = 5 [pid 6396] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6399 [pid 6400] <... set_robust_list resumed>) = 0 [pid 6399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6398] exit_group(0 [pid 6397] exit_group(0 [pid 6400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6398] <... exit_group resumed>) = ? [pid 6397] <... exit_group resumed>) = ? [pid 6396] exit_group(0 [pid 6399] <... prctl resumed>) = 0 [pid 6400] <... prctl resumed>) = 0 [pid 6399] setpgid(0, 0 [pid 6398] +++ exited with 0 +++ [pid 6397] +++ exited with 0 +++ [pid 6396] <... exit_group resumed>) = ? [pid 6400] setpgid(0, 0 [pid 6399] <... setpgid resumed>) = 0 [pid 6396] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6397, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6400] <... setpgid resumed>) = 0 [pid 6399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6400] <... openat resumed>) = 3 [pid 6400] write(3, "1000", 4) = 4 [pid 6400] close(3) = 0 [pid 6400] write(1, "executing program\n", 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] <... restart_syscall resumed>) = 0 executing program [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6400] <... write resumed>) = 18 [pid 6399] <... openat resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6400] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6399] write(3, "1000", 4) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6401 attached [pid 6400] <... bpf resumed>) = 3 [pid 6399] close(3) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6401 ./strace-static-x86_64: Process 6402 attached [pid 6401] set_robust_list(0x55556540f660, 24 [pid 6400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6399] write(1, "executing program\n", 18executing program [pid 6402] set_robust_list(0x55556540f660, 24 [pid 6401] <... set_robust_list resumed>) = 0 [pid 6400] <... bpf resumed>) = 4 [pid 6399] <... write resumed>) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6402] <... set_robust_list resumed>) = 0 [pid 6401] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6403 attached [pid 6402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6401] <... prctl resumed>) = 0 [pid 6399] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6402 [pid 6403] set_robust_list(0x55556540f660, 24 [pid 6402] <... prctl resumed>) = 0 [pid 6401] setpgid(0, 0 [pid 6399] <... bpf resumed>) = 3 [pid 6403] <... set_robust_list resumed>) = 0 [pid 6402] setpgid(0, 0 [pid 6401] <... setpgid resumed>) = 0 [pid 6400] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6402] <... setpgid resumed>) = 0 [pid 6401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6400] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6403 [pid 6403] <... prctl resumed>) = 0 [pid 6403] setpgid(0, 0 [pid 6401] <... openat resumed>) = 3 [pid 6403] <... setpgid resumed>) = 0 [pid 6402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6401] write(3, "1000", 4 [pid 6400] exit_group(0 [pid 6403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6399] <... bpf resumed>) = 4 [pid 6402] <... openat resumed>) = 3 [pid 6400] <... exit_group resumed>) = ? [pid 6402] write(3, "1000", 4 [pid 6400] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6400, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6403] <... openat resumed>) = 3 [pid 6399] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6404 attached [pid 6403] write(3, "1000", 4 [pid 6404] set_robust_list(0x55556540f660, 24 [pid 6403] <... write resumed>) = 4 [pid 6402] <... write resumed>) = 4 [pid 6401] <... write resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6404 [pid 6404] <... set_robust_list resumed>) = 0 [pid 6403] close(3 [pid 6402] close(3 [pid 6404] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6403] <... close resumed>) = 0 [pid 6402] <... close resumed>) = 0 [pid 6401] close(3 executing program [pid 6404] <... prctl resumed>) = 0 [pid 6403] write(1, "executing program\n", 18executing program [pid 6402] write(1, "executing program\n", 18 [pid 6401] <... close resumed>) = 0 [pid 6404] setpgid(0, 0 [pid 6403] <... write resumed>) = 18 [pid 6402] <... write resumed>) = 18 [pid 6404] <... setpgid resumed>) = 0 [pid 6403] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6401] write(1, "executing program\n", 18 [pid 6402] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6403] <... bpf resumed>) = 3 [pid 6402] <... bpf resumed>) = 3 [pid 6401] <... write resumed>) = 18 [pid 6401] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6404] write(3, "1000", 4 [pid 6402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6404] <... write resumed>) = 4 [pid 6403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6402] <... bpf resumed>) = 4 executing program [pid 6401] <... bpf resumed>) = 3 [pid 6404] close(3 [pid 6403] <... bpf resumed>) = 4 [pid 6402] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6404] <... close resumed>) = 0 [pid 6404] write(1, "executing program\n", 18 [pid 6401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6404] <... write resumed>) = 18 [pid 6404] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6401] <... bpf resumed>) = 4 [pid 6403] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6404] <... bpf resumed>) = 3 [pid 6401] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6404] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6399] <... bpf resumed>) = 5 [pid 6402] <... bpf resumed>) = 5 [pid 6401] <... bpf resumed>) = 5 [pid 6401] exit_group(0) = ? [pid 6404] <... bpf resumed>) = 5 [pid 6402] exit_group(0 [pid 6401] +++ exited with 0 +++ [pid 6399] exit_group(0 [pid 6402] <... exit_group resumed>) = ? [pid 6399] <... exit_group resumed>) = ? [pid 6403] <... bpf resumed>) = 5 [pid 6403] exit_group(0) = ? [pid 6403] +++ exited with 0 +++ [pid 6402] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6404] exit_group(0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] <... restart_syscall resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6404] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6405 attached [pid 6404] +++ exited with 0 +++ [pid 6399] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6405 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6405] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6406 attached ) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6399, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6406 ./strace-static-x86_64: Process 6407 attached [pid 6406] set_robust_list(0x55556540f660, 24 [pid 6405] <... prctl resumed>) = 0 [pid 6407] set_robust_list(0x55556540f660, 24 [pid 6406] <... set_robust_list resumed>) = 0 [pid 6405] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6407] <... set_robust_list resumed>) = 0 [pid 6406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6405] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6407 ./strace-static-x86_64: Process 6408 attached [pid 6406] <... prctl resumed>) = 0 [pid 6408] set_robust_list(0x55556540f660, 24 [pid 6407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6408 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6409 attached [pid 6408] <... set_robust_list resumed>) = 0 [pid 6405] <... openat resumed>) = 3 [pid 6409] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6409 [pid 6409] <... set_robust_list resumed>) = 0 [pid 6409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6409] setpgid(0, 0) = 0 [pid 6409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6409] write(3, "1000", 4) = 4 [pid 6409] close(3executing program ) = 0 [pid 6409] write(1, "executing program\n", 18) = 18 [pid 6409] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6407] <... prctl resumed>) = 0 [pid 6406] setpgid(0, 0 [pid 6405] write(3, "1000", 4 [pid 6408] <... prctl resumed>) = 0 [pid 6407] setpgid(0, 0 [pid 6406] <... setpgid resumed>) = 0 [pid 6405] <... write resumed>) = 4 [pid 6409] <... bpf resumed>) = 4 [pid 6408] setpgid(0, 0 [pid 6407] <... setpgid resumed>) = 0 [pid 6406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6405] close(3 [pid 6409] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6408] <... setpgid resumed>) = 0 [pid 6407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6406] <... openat resumed>) = 3 [pid 6405] <... close resumed>) = 0 executing program [pid 6409] <... bpf resumed>) = 5 [pid 6408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6407] <... openat resumed>) = 3 [pid 6406] write(3, "1000", 4 [pid 6405] write(1, "executing program\n", 18 [pid 6408] <... openat resumed>) = 3 [pid 6407] write(3, "1000", 4 [pid 6406] <... write resumed>) = 4 [pid 6405] <... write resumed>) = 18 [pid 6408] write(3, "1000", 4 [pid 6407] <... write resumed>) = 4 [pid 6406] close(3 [pid 6408] <... write resumed>) = 4 [pid 6407] close(3 [pid 6405] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6408] close(3 [pid 6407] <... close resumed>) = 0 [pid 6406] <... close resumed>) = 0 [pid 6409] exit_group(0 [pid 6408] <... close resumed>) = 0 executing program executing program [pid 6407] write(1, "executing program\n", 18 [pid 6406] write(1, "executing program\n", 18 [pid 6405] <... bpf resumed>) = 3 executing program [pid 6409] <... exit_group resumed>) = ? [pid 6408] write(1, "executing program\n", 18 [pid 6407] <... write resumed>) = 18 [pid 6406] <... write resumed>) = 18 [pid 6405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6408] <... write resumed>) = 18 [pid 6407] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6406] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6408] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6407] <... bpf resumed>) = 3 [pid 6409] +++ exited with 0 +++ [pid 6407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6406] <... bpf resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6409, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6408] <... bpf resumed>) = 3 [pid 6407] <... bpf resumed>) = 4 [pid 6406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6405] <... bpf resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6407] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6406] <... bpf resumed>) = 4 [pid 6405] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6408] <... bpf resumed>) = 4 [pid 6407] <... bpf resumed>) = 5 [pid 6406] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6405] <... bpf resumed>) = 5 [pid 6408] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6407] exit_group(0 [pid 6406] <... bpf resumed>) = 5 [pid 6405] exit_group(0 [pid 6408] <... bpf resumed>) = 5 [pid 6407] <... exit_group resumed>) = ? [pid 6406] exit_group(0 [pid 6405] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6406] <... exit_group resumed>) = ? [pid 6407] +++ exited with 0 +++ ./strace-static-x86_64: Process 6410 attached [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6410] set_robust_list(0x55556540f660, 24) = 0 [pid 6405] +++ exited with 0 +++ [pid 6410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6410 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6410] <... prctl resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6410] setpgid(0, 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6410] <... setpgid resumed>) = 0 [pid 6408] exit_group(0 [pid 6410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6408] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6411 attached [pid 6410] <... openat resumed>) = 3 [pid 6411] set_robust_list(0x55556540f660, 24 [pid 6410] write(3, "1000", 4executing program [pid 6411] <... set_robust_list resumed>) = 0 [pid 6410] <... write resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6411 [pid 6411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6410] close(3) = 0 [pid 6410] write(1, "executing program\n", 18) = 18 [pid 6410] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6411] <... prctl resumed>) = 0 [pid 6408] +++ exited with 0 +++ [pid 6406] +++ exited with 0 +++ [pid 6411] setpgid(0, 0 [pid 6410] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6411] <... setpgid resumed>) = 0 [pid 6410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6410] <... bpf resumed>) = 4 [pid 6411] <... openat resumed>) = 3 [pid 6411] write(3, "1000", 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6411] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6412 attached ./strace-static-x86_64: Process 6413 attached [pid 6411] close(3 [pid 6410] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6413] set_robust_list(0x55556540f660, 24 [pid 6412] set_robust_list(0x55556540f660, 24 [pid 6411] <... close resumed>) = 0 [pid 6410] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6412 ./strace-static-x86_64: Process 6414 attached [pid 6413] <... set_robust_list resumed>) = 0 [pid 6412] <... set_robust_list resumed>) = 0 [pid 6411] write(1, "executing program\n", 18 [pid 6410] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6413 executing program [pid 6413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6411] <... write resumed>) = 18 [pid 6410] <... exit_group resumed>) = ? [pid 6412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6411] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6414] set_robust_list(0x55556540f660, 24 [pid 6413] <... prctl resumed>) = 0 [pid 6412] <... prctl resumed>) = 0 [pid 6410] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6414 [pid 6414] <... set_robust_list resumed>) = 0 [pid 6413] setpgid(0, 0 [pid 6412] setpgid(0, 0 [pid 6411] <... bpf resumed>) = 3 [pid 6413] <... setpgid resumed>) = 0 [pid 6411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6412] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6411] <... bpf resumed>) = 4 [pid 6413] <... openat resumed>) = 3 [pid 6411] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6411] <... bpf resumed>) = 5 [pid 6412] <... openat resumed>) = 3 [pid 6414] <... prctl resumed>) = 0 [pid 6413] write(3, "1000", 4 [pid 6412] write(3, "1000", 4 [pid 6411] exit_group(0 [pid 6414] setpgid(0, 0 [pid 6413] <... write resumed>) = 4 [pid 6412] <... write resumed>) = 4 [pid 6411] <... exit_group resumed>) = ? [pid 6414] <... setpgid resumed>) = 0 [pid 6413] close(3 [pid 6412] close(3 [pid 6413] <... close resumed>) = 0 [pid 6414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6412] <... close resumed>) = 0 [pid 6413] write(1, "executing program\n", 18 [pid 6412] write(1, "executing program\n", 18executing program executing program [pid 6414] <... openat resumed>) = 3 [pid 6413] <... write resumed>) = 18 [pid 6412] <... write resumed>) = 18 [pid 6411] +++ exited with 0 +++ [pid 6414] write(3, "1000", 4 [pid 6413] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6412] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6411, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6414] <... write resumed>) = 4 [pid 6413] <... bpf resumed>) = 3 [pid 6412] <... bpf resumed>) = 3 [pid 6414] close(3 [pid 6413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6414] <... close resumed>) = 0 executing program [pid 6414] write(1, "executing program\n", 18 [pid 6413] <... bpf resumed>) = 4 [pid 6412] <... bpf resumed>) = 4 [pid 6414] <... write resumed>) = 18 [pid 6413] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6412] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6414] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6415 attached ) = 3 [pid 6415] set_robust_list(0x55556540f660, 24 [pid 6414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6415] <... set_robust_list resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6415 [pid 6414] <... bpf resumed>) = 4 [pid 6415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6415] setpgid(0, 0 [pid 6414] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6415] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6416 ./strace-static-x86_64: Process 6416 attached [pid 6415] <... openat resumed>) = 3 [pid 6416] set_robust_list(0x55556540f660, 24 [pid 6415] write(3, "1000", 4 [pid 6416] <... set_robust_list resumed>) = 0 [pid 6415] <... write resumed>) = 4 [pid 6412] <... bpf resumed>) = 5 [pid 6416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6416] setpgid(0, 0) = 0 [pid 6416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6416] write(3, "1000", 4) = 4 [pid 6416] close(3) = 0 [pid 6416] write(1, "executing program\n", 18 [pid 6415] close(3 [pid 6412] exit_group(0 [pid 6415] <... close resumed>) = 0 [pid 6414] <... bpf resumed>) = 5 [pid 6413] <... bpf resumed>) = 5 [pid 6412] <... exit_group resumed>) = ? [pid 6415] write(1, "executing program\n", 18 [pid 6414] exit_group(0executing program executing program [pid 6416] <... write resumed>) = 18 [pid 6415] <... write resumed>) = 18 [pid 6413] exit_group(0 [pid 6416] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6415] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6414] <... exit_group resumed>) = ? [pid 6413] <... exit_group resumed>) = ? [pid 6412] +++ exited with 0 +++ [pid 6416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6415] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6416] <... bpf resumed>) = 4 [pid 6415] <... bpf resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6416] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6415] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6417 attached , child_tidptr=0x55556540f650) = 6417 [pid 6417] set_robust_list(0x55556540f660, 24) = 0 [pid 6417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6417] setpgid(0, 0) = 0 [pid 6417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6417] write(3, "1000", 4 [pid 6414] +++ exited with 0 +++ [pid 6413] +++ exited with 0 +++ [pid 6417] <... write resumed>) = 4 [pid 6417] close(3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6417] <... close resumed>) = 0 executing program [pid 6417] write(1, "executing program\n", 18) = 18 [pid 6417] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6418 attached [pid 6417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6417] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6419 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6418 ./strace-static-x86_64: Process 6419 attached [pid 6418] set_robust_list(0x55556540f660, 24 [pid 6419] set_robust_list(0x55556540f660, 24 [pid 6418] <... set_robust_list resumed>) = 0 [pid 6419] <... set_robust_list resumed>) = 0 [pid 6419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6419] <... prctl resumed>) = 0 [pid 6418] <... prctl resumed>) = 0 [pid 6416] <... bpf resumed>) = 5 [pid 6419] setpgid(0, 0 [pid 6418] setpgid(0, 0 [pid 6417] <... bpf resumed>) = 5 [pid 6415] <... bpf resumed>) = 5 [pid 6419] <... setpgid resumed>) = 0 [pid 6418] <... setpgid resumed>) = 0 [pid 6417] exit_group(0 [pid 6416] exit_group(0 [pid 6415] exit_group(0 [pid 6419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6417] <... exit_group resumed>) = ? [pid 6416] <... exit_group resumed>) = ? [pid 6419] <... openat resumed>) = 3 [pid 6418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6417] +++ exited with 0 +++ [pid 6415] <... exit_group resumed>) = ? [pid 6418] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6418] write(3, "1000", 4executing program executing program [pid 6419] write(3, "1000", 4 [pid 6418] <... write resumed>) = 4 [pid 6419] <... write resumed>) = 4 [pid 6418] close(3 [pid 6419] close(3 [pid 6418] <... close resumed>) = 0 [pid 6419] <... close resumed>) = 0 [pid 6418] write(1, "executing program\n", 18 [pid 6419] write(1, "executing program\n", 18 [pid 6418] <... write resumed>) = 18 [pid 6419] <... write resumed>) = 18 [pid 6419] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6418] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6419] <... bpf resumed>) = 3 [pid 6418] <... bpf resumed>) = 3 [pid 6419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6419] <... bpf resumed>) = 4 [pid 6418] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6420 attached [pid 6419] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6418] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6416] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6420 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6419] <... bpf resumed>) = 5 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6419] exit_group(0) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6421 attached [pid 6420] set_robust_list(0x55556540f660, 24) = 0 [pid 6420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6420] setpgid(0, 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6421 [pid 6420] <... setpgid resumed>) = 0 [pid 6421] set_robust_list(0x55556540f660, 24 [pid 6420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6421] <... set_robust_list resumed>) = 0 [pid 6421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6420] <... openat resumed>) = 3 [pid 6421] <... prctl resumed>) = 0 [pid 6420] write(3, "1000", 4 [pid 6421] setpgid(0, 0 [pid 6420] <... write resumed>) = 4 [pid 6421] <... setpgid resumed>) = 0 [pid 6420] close(3 [pid 6421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6420] <... close resumed>) = 0 executing program [pid 6421] <... openat resumed>) = 3 [pid 6420] write(1, "executing program\n", 18 [pid 6421] write(3, "1000", 4 [pid 6420] <... write resumed>) = 18 [pid 6421] <... write resumed>) = 4 [pid 6421] close(3 [pid 6420] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6421] <... close resumed>) = 0 executing program [pid 6421] write(1, "executing program\n", 18) = 18 [pid 6420] <... bpf resumed>) = 3 [pid 6421] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6421] <... bpf resumed>) = 3 [pid 6420] <... bpf resumed>) = 4 [pid 6418] <... bpf resumed>) = 5 [pid 6415] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6420] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6418] exit_group(0 [pid 6421] <... bpf resumed>) = 4 [pid 6418] <... exit_group resumed>) = ? [pid 6421] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6422 attached , child_tidptr=0x55556540f650) = 6422 [pid 6422] set_robust_list(0x55556540f660, 24 [pid 6420] <... bpf resumed>) = 5 [pid 6419] +++ exited with 0 +++ [pid 6422] <... set_robust_list resumed>) = 0 [pid 6420] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6420] <... exit_group resumed>) = ? [pid 6422] <... prctl resumed>) = 0 [pid 6422] setpgid(0, 0) = 0 [pid 6422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6422] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6423 attached [pid 6422] write(3, "1000", 4) = 4 [pid 6423] set_robust_list(0x55556540f660, 24 [pid 6422] close(3 [pid 6423] <... set_robust_list resumed>) = 0 [pid 6422] <... close resumed>) = 0 [pid 6423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6422] write(1, "executing program\n", 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6423 executing program [pid 6423] <... prctl resumed>) = 0 [pid 6422] <... write resumed>) = 18 [pid 6422] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6423] setpgid(0, 0) = 0 [pid 6422] <... bpf resumed>) = 3 [pid 6423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6423] <... openat resumed>) = 3 [pid 6422] <... bpf resumed>) = 4 [pid 6423] write(3, "1000", 4 [pid 6422] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6423] <... write resumed>) = 4 [pid 6423] close(3) = 0 [pid 6421] <... bpf resumed>) = 5 [pid 6418] +++ exited with 0 +++ [pid 6423] write(1, "executing program\n", 18executing program [pid 6421] exit_group(0 [pid 6423] <... write resumed>) = 18 [pid 6421] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6423] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6423] <... bpf resumed>) = 3 [pid 6423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6423] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6424 attached , child_tidptr=0x55556540f650) = 6424 [pid 6424] set_robust_list(0x55556540f660, 24) = 0 [pid 6422] <... bpf resumed>) = 5 [pid 6420] +++ exited with 0 +++ [pid 6424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6422] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6420, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6424] setpgid(0, 0 [pid 6422] <... exit_group resumed>) = ? [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6424] <... setpgid resumed>) = 0 [pid 6424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... restart_syscall resumed>) = 0 executing program [pid 6424] <... openat resumed>) = 3 [pid 6424] write(3, "1000", 4) = 4 [pid 6424] close(3) = 0 [pid 6424] write(1, "executing program\n", 18) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6425 attached [pid 6424] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6425] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6425 [pid 6425] <... set_robust_list resumed>) = 0 [pid 6424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6424] <... bpf resumed>) = 4 [pid 6425] setpgid(0, 0 [pid 6424] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6425] <... setpgid resumed>) = 0 [pid 6425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6425] write(3, "1000", 4) = 4 [pid 6425] close(3) = 0 [pid 6425] write(1, "executing program\n", 18 [pid 6423] <... bpf resumed>) = 5 [pid 6421] +++ exited with 0 +++ executing program [pid 6425] <... write resumed>) = 18 [pid 6423] exit_group(0 [pid 6425] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6423] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6426 attached [pid 6426] set_robust_list(0x55556540f660, 24 [pid 6425] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6426 [pid 6426] <... set_robust_list resumed>) = 0 [pid 6426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6426] setpgid(0, 0) = 0 [pid 6426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6426] write(3, "1000", 4) = 4 [pid 6426] close(3) = 0 executing program [pid 6426] write(1, "executing program\n", 18) = 18 [pid 6426] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6424] <... bpf resumed>) = 5 [pid 6424] exit_group(0) = ? [pid 6422] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6426] <... bpf resumed>) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6426] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6425] <... bpf resumed>) = 5 [pid 6423] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6425] exit_group(0) = ? ./strace-static-x86_64: Process 6427 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6427 [pid 6427] set_robust_list(0x55556540f660, 24) = 0 [pid 6427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6427] setpgid(0, 0) = 0 [pid 6427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6427] write(3, "1000", 4) = 4 [pid 6427] close(3) = 0 [pid 6427] write(1, "executing program\n", 18executing program ) = 18 [pid 6427] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6427] <... bpf resumed>) = 4 [pid 6427] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6428 attached [pid 6428] set_robust_list(0x55556540f660, 24 [pid 6426] <... bpf resumed>) = 5 [pid 6424] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6428 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6428] <... set_robust_list resumed>) = 0 [pid 6426] exit_group(0 [pid 6428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6426] <... exit_group resumed>) = ? [pid 6428] <... prctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6428] setpgid(0, 0) = 0 [pid 6428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6429 attached ) = 3 [pid 6429] set_robust_list(0x55556540f660, 24 [pid 6428] write(3, "1000", 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6429 [pid 6429] <... set_robust_list resumed>) = 0 [pid 6428] <... write resumed>) = 4 [pid 6429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6428] close(3 [pid 6429] <... prctl resumed>) = 0 [pid 6428] <... close resumed>) = 0 [pid 6429] setpgid(0, 0 [pid 6428] write(1, "executing program\n", 18executing program ) = 18 [pid 6429] <... setpgid resumed>) = 0 [pid 6428] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6428] <... bpf resumed>) = 3 [pid 6429] <... openat resumed>) = 3 [pid 6428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6427] <... bpf resumed>) = 5 [pid 6425] +++ exited with 0 +++ [pid 6429] write(3, "1000", 4 [pid 6428] <... bpf resumed>) = 4 [pid 6427] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6425, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6429] <... write resumed>) = 4 [pid 6429] close(3 [pid 6428] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6429] <... close resumed>) = 0 [pid 6429] write(1, "executing program\n", 18) = 18 [pid 6429] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6427] <... exit_group resumed>) = ? [pid 6429] <... bpf resumed>) = 3 [pid 6429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6430 attached [pid 6429] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6430 [pid 6430] set_robust_list(0x55556540f660, 24 [pid 6429] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6428] <... bpf resumed>) = 5 [pid 6426] +++ exited with 0 +++ [pid 6430] <... set_robust_list resumed>) = 0 [pid 6430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6428] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6430] <... prctl resumed>) = 0 [pid 6428] <... exit_group resumed>) = ? [pid 6430] setpgid(0, 0 [pid 6429] <... bpf resumed>) = 5 [pid 6427] +++ exited with 0 +++ [pid 6430] <... setpgid resumed>) = 0 [pid 6429] exit_group(0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6431 attached [pid 6429] <... exit_group resumed>) = ? [pid 6430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6430] <... openat resumed>) = 3 [pid 6431] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6431 [pid 6431] <... set_robust_list resumed>) = 0 [pid 6431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6432 attached [pid 6431] setpgid(0, 0 [pid 6430] write(3, "1000", 4 [pid 6431] <... setpgid resumed>) = 0 [pid 6430] <... write resumed>) = 4 [pid 6431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6432] set_robust_list(0x55556540f660, 24 [pid 6430] close(3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6432 [pid 6432] <... set_robust_list resumed>) = 0 [pid 6430] <... close resumed>) = 0 [pid 6430] write(1, "executing program\n", 18 [pid 6432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6431] <... openat resumed>) = 3 [pid 6430] <... write resumed>) = 18 [pid 6431] write(3, "1000", 4) = 4 [pid 6432] <... prctl resumed>) = 0 [pid 6431] close(3 [pid 6430] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6429] +++ exited with 0 +++ [pid 6428] +++ exited with 0 +++ [pid 6432] setpgid(0, 0 [pid 6431] <... close resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6432] <... setpgid resumed>) = 0 [pid 6431] write(1, "executing program\n", 18 [pid 6430] <... bpf resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6431] <... write resumed>) = 18 [pid 6432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6431] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6432] <... openat resumed>) = 3 [pid 6431] <... bpf resumed>) = 3 [pid 6430] <... bpf resumed>) = 4 [pid 6431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6433 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6432] write(3, "1000", 4 [pid 6430] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6434 attached [pid 6433] set_robust_list(0x55556540f660, 24 [pid 6432] <... write resumed>) = 4 [pid 6431] <... bpf resumed>) = 4 [pid 6433] <... set_robust_list resumed>) = 0 [pid 6432] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6433 [pid 6434] set_robust_list(0x55556540f660, 24) = 0 [pid 6434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6431] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6434] <... prctl resumed>) = 0 [pid 6434] setpgid(0, 0) = 0 [pid 6434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6432] <... close resumed>) = 0 [pid 6433] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 6432] write(1, "executing program\n", 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6434 [pid 6433] <... prctl resumed>) = 0 [pid 6432] <... write resumed>) = 18 [pid 6434] <... openat resumed>) = 3 [pid 6433] setpgid(0, 0 [pid 6432] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6434] write(3, "1000", 4 [pid 6433] <... setpgid resumed>) = 0 [pid 6434] <... write resumed>) = 4 [pid 6432] <... bpf resumed>) = 3 [pid 6434] close(3) = 0 [pid 6434] write(1, "executing program\n", 18 [pid 6433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6431] <... bpf resumed>) = 5 [pid 6430] <... bpf resumed>) = 5 [pid 6434] <... write resumed>) = 18 [pid 6431] exit_group(0 [pid 6434] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6432] <... bpf resumed>) = 4 [pid 6431] <... exit_group resumed>) = ? [pid 6430] exit_group(0 [pid 6434] <... bpf resumed>) = 3 [pid 6433] <... openat resumed>) = 3 [pid 6432] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6431] +++ exited with 0 +++ [pid 6430] <... exit_group resumed>) = ? [pid 6434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6433] write(3, "1000", 4 [pid 6432] <... bpf resumed>) = 5 [pid 6434] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6434] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6433] <... write resumed>) = 4 [pid 6432] exit_group(0) = ? [pid 6433] close(3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6434] <... bpf resumed>) = 5 [pid 6433] <... close resumed>) = 0 [pid 6430] +++ exited with 0 +++ [pid 6434] exit_group(0 [pid 6433] write(1, "executing program\n", 18executing program [pid 6434] <... exit_group resumed>) = ? [pid 6433] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6433] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6435 attached ./strace-static-x86_64: Process 6436 attached [pid 6433] <... bpf resumed>) = 3 [pid 6435] set_robust_list(0x55556540f660, 24 [pid 6433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6436] set_robust_list(0x55556540f660, 24 [pid 6435] <... set_robust_list resumed>) = 0 [pid 6436] <... set_robust_list resumed>) = 0 [pid 6436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6433] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6436 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6435 [pid 6433] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6436] <... prctl resumed>) = 0 [pid 6435] <... prctl resumed>) = 0 [pid 6434] +++ exited with 0 +++ [pid 6432] +++ exited with 0 +++ [pid 6436] setpgid(0, 0 [pid 6435] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6432, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6436] <... setpgid resumed>) = 0 [pid 6435] <... setpgid resumed>) = 0 [pid 6436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6436] <... openat resumed>) = 3 [pid 6435] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6436] write(3, "1000", 4 [pid 6435] write(3, "1000", 4 [pid 6436] <... write resumed>) = 4 [pid 6435] <... write resumed>) = 4 [pid 6436] close(3./strace-static-x86_64: Process 6438 attached ./strace-static-x86_64: Process 6437 attached ) = 0 [pid 6435] close(3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6437 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6438 executing program [pid 6438] set_robust_list(0x55556540f660, 24 [pid 6437] set_robust_list(0x55556540f660, 24 [pid 6436] write(1, "executing program\n", 18 [pid 6435] <... close resumed>) = 0 [pid 6438] <... set_robust_list resumed>) = 0 [pid 6437] <... set_robust_list resumed>) = 0 [pid 6436] <... write resumed>) = 18 executing program [pid 6435] write(1, "executing program\n", 18 [pid 6438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6436] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6435] <... write resumed>) = 18 [pid 6433] <... bpf resumed>) = 5 [pid 6438] <... prctl resumed>) = 0 [pid 6437] <... prctl resumed>) = 0 [pid 6436] <... bpf resumed>) = 3 [pid 6435] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6438] setpgid(0, 0 [pid 6437] setpgid(0, 0 [pid 6436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6435] <... bpf resumed>) = 3 [pid 6433] exit_group(0 [pid 6438] <... setpgid resumed>) = 0 [pid 6437] <... setpgid resumed>) = 0 [pid 6436] <... bpf resumed>) = 4 [pid 6435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6433] <... exit_group resumed>) = ? [pid 6438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6438] <... openat resumed>) = 3 [pid 6438] write(3, "1000", 4) = 4 [pid 6438] close(3) = 0 [pid 6437] <... openat resumed>) = 3 [pid 6436] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6438] write(1, "executing program\n", 18) = 18 [pid 6438] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6437] write(3, "1000", 4 [pid 6433] +++ exited with 0 +++ [pid 6437] <... write resumed>) = 4 [pid 6437] close(3 [pid 6435] <... bpf resumed>) = 4 [pid 6437] <... close resumed>) = 0 [pid 6437] write(1, "executing program\n", 18executing program [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6433, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 6438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6437] <... write resumed>) = 18 [pid 6435] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6437] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6438] <... bpf resumed>) = 4 [pid 6437] <... bpf resumed>) = 3 [pid 6437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6437] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6438] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6437] <... bpf resumed>) = 5 [pid 6436] <... bpf resumed>) = 5 [pid 6435] <... bpf resumed>) = 5 [pid 6438] exit_group(0 [pid 6436] exit_group(0 [pid 6435] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6439 attached [pid 6438] <... exit_group resumed>) = ? [pid 6437] exit_group(0 [pid 6436] <... exit_group resumed>) = ? [pid 6438] +++ exited with 0 +++ [pid 6435] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6439 [pid 6439] set_robust_list(0x55556540f660, 24 [pid 6437] <... exit_group resumed>) = ? [pid 6435] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6438, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6439] <... set_robust_list resumed>) = 0 [pid 6437] +++ exited with 0 +++ [pid 6436] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6439] <... prctl resumed>) = 0 [pid 6439] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6440 attached ./strace-static-x86_64: Process 6441 attached [pid 6439] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6440 [pid 6441] set_robust_list(0x55556540f660, 24 [pid 6440] set_robust_list(0x55556540f660, 24 [pid 6439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6441 [pid 6441] <... set_robust_list resumed>) = 0 [pid 6440] <... set_robust_list resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6442 attached [pid 6441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6439] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6443 attached [pid 6442] set_robust_list(0x55556540f660, 24 [pid 6441] <... prctl resumed>) = 0 [pid 6440] <... prctl resumed>) = 0 [pid 6439] write(3, "1000", 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6442 [pid 6443] set_robust_list(0x55556540f660, 24 [pid 6442] <... set_robust_list resumed>) = 0 [pid 6441] setpgid(0, 0 [pid 6440] setpgid(0, 0 [pid 6439] <... write resumed>) = 4 executing program [pid 6443] <... set_robust_list resumed>) = 0 [pid 6442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6440] <... setpgid resumed>) = 0 [pid 6439] close(3 [pid 6443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6439] <... close resumed>) = 0 [pid 6439] write(1, "executing program\n", 18 [pid 6443] <... prctl resumed>) = 0 [pid 6442] <... prctl resumed>) = 0 [pid 6441] <... setpgid resumed>) = 0 [pid 6440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6439] <... write resumed>) = 18 [pid 6443] setpgid(0, 0 [pid 6442] setpgid(0, 0 [pid 6441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6440] <... openat resumed>) = 3 [pid 6439] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6443 [pid 6442] <... setpgid resumed>) = 0 [pid 6442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6440] write(3, "1000", 4 [pid 6442] <... openat resumed>) = 3 [pid 6441] <... openat resumed>) = 3 [pid 6440] <... write resumed>) = 4 [pid 6439] <... bpf resumed>) = 3 [pid 6442] write(3, "1000", 4 [pid 6441] write(3, "1000", 4 [pid 6440] close(3 [pid 6439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6443] <... setpgid resumed>) = 0 [pid 6442] <... write resumed>) = 4 [pid 6441] <... write resumed>) = 4 [pid 6440] <... close resumed>) = 0 [pid 6443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6442] close(3 [pid 6441] close(3 [pid 6440] write(1, "executing program\n", 18 [pid 6439] <... bpf resumed>) = 4 [pid 6442] <... close resumed>) = 0 [pid 6441] <... close resumed>) = 0 [pid 6440] <... write resumed>) = 18 [pid 6443] <... openat resumed>) = 3 executing program executing program [pid 6442] write(1, "executing program\n", 18 [pid 6441] write(1, "executing program\n", 18 [pid 6440] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6439] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6443] write(3, "1000", 4 [pid 6442] <... write resumed>) = 18 [pid 6441] <... write resumed>) = 18 [pid 6440] <... bpf resumed>) = 3 [pid 6443] <... write resumed>) = 4 [pid 6442] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6441] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6439] <... bpf resumed>) = 5 [pid 6443] close(3 [pid 6442] <... bpf resumed>) = 3 [pid 6440] <... bpf resumed>) = 4 [pid 6443] <... close resumed>) = 0 executing program [pid 6442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6441] <... bpf resumed>) = 3 [pid 6439] exit_group(0 [pid 6443] write(1, "executing program\n", 18 [pid 6441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6440] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6443] <... write resumed>) = 18 [pid 6443] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6442] <... bpf resumed>) = 4 [pid 6441] <... bpf resumed>) = 4 [pid 6439] <... exit_group resumed>) = ? [pid 6443] <... bpf resumed>) = 3 [pid 6442] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6440] <... bpf resumed>) = 5 [pid 6441] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6440] exit_group(0 [pid 6443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6440] <... exit_group resumed>) = ? [pid 6443] <... bpf resumed>) = 4 [pid 6443] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6442] <... bpf resumed>) = 5 [pid 6441] <... bpf resumed>) = 5 [pid 6439] +++ exited with 0 +++ [pid 6440] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6440, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6443] <... bpf resumed>) = 5 [pid 6441] exit_group(0 [pid 6443] exit_group(0) = ? [pid 6442] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6442] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6441] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6444 attached [pid 6443] +++ exited with 0 +++ [pid 6444] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6444 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6444] <... set_robust_list resumed>) = 0 [pid 6444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6444] <... prctl resumed>) = 0 [pid 6441] +++ exited with 0 +++ ./strace-static-x86_64: Process 6445 attached [pid 6444] setpgid(0, 0 [pid 6442] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6444] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6445 [pid 6445] set_robust_list(0x55556540f660, 24 [pid 6444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6445] <... set_robust_list resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6446 attached [pid 6445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6446] set_robust_list(0x55556540f660, 24 [pid 6444] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6446 [pid 6446] <... set_robust_list resumed>) = 0 [pid 6446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6445] <... prctl resumed>) = 0 [pid 6444] write(3, "1000", 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6445] setpgid(0, 0 [pid 6446] <... prctl resumed>) = 0 [pid 6446] setpgid(0, 0 [pid 6445] <... setpgid resumed>) = 0 [pid 6445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6446] <... setpgid resumed>) = 0 [pid 6446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6445] <... openat resumed>) = 3 [pid 6446] write(3, "1000", 4./strace-static-x86_64: Process 6447 attached [pid 6445] write(3, "1000", 4 [pid 6444] <... write resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6446] <... write resumed>) = 4 [pid 6445] <... write resumed>) = 4 [pid 6446] close(3executing program ./strace-static-x86_64: Process 6448 attached ) = 0 [pid 6445] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6447 [pid 6444] close(3 [pid 6447] set_robust_list(0x55556540f660, 24 [pid 6444] <... close resumed>) = 0 [pid 6444] write(1, "executing program\n", 18 [pid 6447] <... set_robust_list resumed>) = 0 [pid 6444] <... write resumed>) = 18 [pid 6448] set_robust_list(0x55556540f660, 24 [pid 6447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6446] write(1, "executing program\n", 18executing program [pid 6445] <... close resumed>) = 0 [pid 6444] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6448] <... set_robust_list resumed>) = 0 [pid 6447] <... prctl resumed>) = 0 [pid 6446] <... write resumed>) = 18 executing program [pid 6445] write(1, "executing program\n", 18 [pid 6448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6447] setpgid(0, 0 [pid 6446] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6445] <... write resumed>) = 18 [pid 6444] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6448 [pid 6448] <... prctl resumed>) = 0 [pid 6447] <... setpgid resumed>) = 0 [pid 6446] <... bpf resumed>) = 3 [pid 6445] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6448] setpgid(0, 0 [pid 6447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6445] <... bpf resumed>) = 3 [pid 6448] <... setpgid resumed>) = 0 [pid 6447] <... openat resumed>) = 3 [pid 6446] <... bpf resumed>) = 4 [pid 6445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6444] <... bpf resumed>) = 4 [pid 6448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6447] write(3, "1000", 4 [pid 6445] <... bpf resumed>) = 4 [pid 6444] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6448] <... openat resumed>) = 3 [pid 6447] <... write resumed>) = 4 [pid 6446] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6445] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6444] <... bpf resumed>) = 5 [pid 6448] write(3, "1000", 4 [pid 6447] close(3 [pid 6446] <... bpf resumed>) = 5 [pid 6444] exit_group(0 [pid 6447] <... close resumed>) = 0 [pid 6444] <... exit_group resumed>) = ? [pid 6448] <... write resumed>) = 4 [pid 6447] write(1, "executing program\n", 18 [pid 6446] exit_group(0executing program [pid 6445] <... bpf resumed>) = 5 [pid 6448] close(3 [pid 6447] <... write resumed>) = 18 [pid 6446] <... exit_group resumed>) = ? [pid 6445] exit_group(0 [pid 6444] +++ exited with 0 +++ [pid 6448] <... close resumed>) = 0 [pid 6447] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6445] <... exit_group resumed>) = ? executing program [pid 6448] write(1, "executing program\n", 18 [pid 6447] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6448] <... write resumed>) = 18 [pid 6447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6448] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6448] <... bpf resumed>) = 3 [pid 6447] <... bpf resumed>) = 4 [pid 6447] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6448] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6449 attached [pid 6449] set_robust_list(0x55556540f660, 24 [pid 6448] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6449 [pid 6449] <... set_robust_list resumed>) = 0 [pid 6449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6449] setpgid(0, 0 [pid 6446] +++ exited with 0 +++ [pid 6445] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6449] <... setpgid resumed>) = 0 [pid 6449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6449] <... openat resumed>) = 3 [pid 6449] write(3, "1000", 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6450 attached [pid 6449] <... write resumed>) = 4 executing program [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6449] close(3 [pid 6450] set_robust_list(0x55556540f660, 24 [pid 6449] <... close resumed>) = 0 [pid 6449] write(1, "executing program\n", 18) = 18 [pid 6449] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6451 attached [pid 6450] <... set_robust_list resumed>) = 0 [pid 6451] set_robust_list(0x55556540f660, 24 [pid 6450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6449] <... bpf resumed>) = 3 [pid 6448] <... bpf resumed>) = 5 [pid 6447] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6450 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6451 [pid 6451] <... set_robust_list resumed>) = 0 [pid 6450] <... prctl resumed>) = 0 [pid 6451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6450] setpgid(0, 0 [pid 6449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6448] exit_group(0 [pid 6447] exit_group(0 [pid 6450] <... setpgid resumed>) = 0 [pid 6447] <... exit_group resumed>) = ? [pid 6451] <... prctl resumed>) = 0 [pid 6450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6449] <... bpf resumed>) = 4 [pid 6448] <... exit_group resumed>) = ? [pid 6451] setpgid(0, 0) = 0 [pid 6450] <... openat resumed>) = 3 [pid 6450] write(3, "1000", 4) = 4 [pid 6451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6449] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6450] close(3 [pid 6451] <... openat resumed>) = 3 executing program [pid 6451] write(3, "1000", 4 [pid 6450] <... close resumed>) = 0 [pid 6447] +++ exited with 0 +++ [pid 6451] <... write resumed>) = 4 [pid 6451] close(3) = 0 [pid 6451] write(1, "executing program\n", 18) = 18 [pid 6451] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 executing program [pid 6450] write(1, "executing program\n", 18 [pid 6448] +++ exited with 0 +++ [pid 6450] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6450] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6451] <... bpf resumed>) = 4 [pid 6449] <... bpf resumed>) = 5 [pid 6450] <... bpf resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6449] exit_group(0 [pid 6451] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6450] <... bpf resumed>) = 4 [pid 6449] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6452 attached [pid 6451] <... bpf resumed>) = 5 [pid 6450] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6452] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6452 [pid 6452] <... set_robust_list resumed>) = 0 [pid 6451] exit_group(0 [pid 6452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6453 attached [pid 6452] setpgid(0, 0 [pid 6451] <... exit_group resumed>) = ? [pid 6453] set_robust_list(0x55556540f660, 24 [pid 6452] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6453 [pid 6453] <... set_robust_list resumed>) = 0 [pid 6453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6453] <... prctl resumed>) = 0 [pid 6452] write(3, "1000", 4 [pid 6453] setpgid(0, 0 [pid 6452] <... write resumed>) = 4 [pid 6453] <... setpgid resumed>) = 0 [pid 6452] close(3) = 0 executing program [pid 6452] write(1, "executing program\n", 18) = 18 [pid 6452] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6452] <... bpf resumed>) = 3 [pid 6452] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6453] <... openat resumed>) = 3 [pid 6452] <... bpf resumed>) = 4 [pid 6450] <... bpf resumed>) = 5 [pid 6449] +++ exited with 0 +++ [pid 6453] write(3, "1000", 4) = 4 [pid 6452] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6453] close(3 [pid 6450] exit_group(0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6453] <... close resumed>) = 0 [pid 6450] <... exit_group resumed>) = ? executing program [pid 6453] write(1, "executing program\n", 18) = 18 [pid 6453] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6453] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6451] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6452] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6452] exit_group(0) = ? ./strace-static-x86_64: Process 6454 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6455 attached [pid 6454] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6454 [pid 6455] set_robust_list(0x55556540f660, 24 [pid 6454] <... set_robust_list resumed>) = 0 [pid 6455] <... set_robust_list resumed>) = 0 [pid 6454] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6454] <... prctl resumed>) = 0 [pid 6455] <... prctl resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6455 [pid 6455] setpgid(0, 0 [pid 6454] setpgid(0, 0 [pid 6455] <... setpgid resumed>) = 0 [pid 6454] <... setpgid resumed>) = 0 [pid 6453] <... bpf resumed>) = 5 [pid 6450] +++ exited with 0 +++ [pid 6455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6453] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6455] <... openat resumed>) = 3 [pid 6454] <... openat resumed>) = 3 [pid 6453] <... exit_group resumed>) = ? [pid 6454] write(3, "1000", 4) = 4 [pid 6455] write(3, "1000", 4 [pid 6453] +++ exited with 0 +++ [pid 6452] +++ exited with 0 +++ [pid 6455] <... write resumed>) = 4 [pid 6454] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6455] close(3 [pid 6454] <... close resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program ./strace-static-x86_64: Process 6456 attached [pid 6455] <... close resumed>) = 0 [pid 6454] write(1, "executing program\n", 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6456 [pid 5842] restart_syscall(<... resuming interrupted clone ...> executing program [pid 6455] write(1, "executing program\n", 18 [pid 6454] <... write resumed>) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6455] <... write resumed>) = 18 [pid 6455] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 ./strace-static-x86_64: Process 6457 attached [pid 6456] set_robust_list(0x55556540f660, 24 [pid 6455] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6457] set_robust_list(0x55556540f660, 24 [pid 6456] <... set_robust_list resumed>) = 0 [pid 6455] <... bpf resumed>) = 4 [pid 6454] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6457] <... set_robust_list resumed>) = 0 [pid 6457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6455] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6457] <... prctl resumed>) = 0 [pid 6457] setpgid(0, 0 [pid 6456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6455] <... bpf resumed>) = 5 [pid 6454] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6457 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6456] <... prctl resumed>) = 0 [pid 6454] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6456] setpgid(0, 0 [pid 6457] <... setpgid resumed>) = 0 [pid 6456] <... setpgid resumed>) = 0 [pid 6455] exit_group(0 [pid 6457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6455] <... exit_group resumed>) = ? [pid 6454] <... bpf resumed>) = 4 [pid 6456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6457] <... openat resumed>) = 3 [pid 6455] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6456] <... openat resumed>) = 3 [pid 6454] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6458 attached [pid 6457] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6455, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6457] <... write resumed>) = 4 [pid 6457] close(3) = 0 [pid 6457] write(1, "executing program\n", 18) = 18 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6458 [pid 6457] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6458] set_robust_list(0x55556540f660, 24 [pid 6456] write(3, "1000", 4 [pid 6454] <... bpf resumed>) = 5 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6458] <... set_robust_list resumed>) = 0 [pid 6456] <... write resumed>) = 4 [pid 6454] exit_group(0 [pid 6458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6456] close(3 [pid 6458] <... prctl resumed>) = 0 [pid 6457] <... bpf resumed>) = 4 [pid 6456] <... close resumed>) = 0 [pid 6454] <... exit_group resumed>) = ? [pid 6458] setpgid(0, 0 [pid 6457] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6456] write(1, "executing program\n", 18 [pid 6454] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6458] <... setpgid resumed>) = 0 [pid 6456] <... write resumed>) = 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6459 ./strace-static-x86_64: Process 6459 attached [pid 6458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6456] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6459] set_robust_list(0x55556540f660, 24 [pid 6458] <... openat resumed>) = 3 [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6459] <... set_robust_list resumed>) = 0 [pid 6458] write(3, "1000", 4) = 4 [pid 6459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6458] close(3 [pid 6456] <... bpf resumed>) = 3 [pid 6458] <... close resumed>) = 0 executing program [pid 6456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6459] <... prctl resumed>) = 0 [pid 6458] write(1, "executing program\n", 18) = 18 [pid 6458] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6460 attached [pid 6459] setpgid(0, 0 [pid 6458] <... bpf resumed>) = 3 [pid 6456] <... bpf resumed>) = 4 [pid 6459] <... setpgid resumed>) = 0 [pid 6458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6456] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6460] set_robust_list(0x55556540f660, 24 [pid 6459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6458] <... bpf resumed>) = 4 [pid 6457] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6460 [pid 6460] <... set_robust_list resumed>) = 0 [pid 6459] <... openat resumed>) = 3 [pid 6458] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6459] write(3, "1000", 4 [pid 6458] <... bpf resumed>) = 5 [pid 6457] exit_group(0 [pid 6456] <... bpf resumed>) = 5 [pid 6460] <... prctl resumed>) = 0 [pid 6459] <... write resumed>) = 4 [pid 6457] <... exit_group resumed>) = ? [pid 6456] exit_group(0) = ? [pid 6460] setpgid(0, 0 [pid 6459] close(3 [pid 6458] exit_group(0 [pid 6460] <... setpgid resumed>) = 0 [pid 6459] <... close resumed>) = 0 [pid 6460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6458] <... exit_group resumed>) = ? [pid 6456] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6458] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6459] write(1, "executing program\n", 18 [pid 6460] <... openat resumed>) = 3 [pid 6459] <... write resumed>) = 18 [pid 6457] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6460] write(3, "1000", 4) = 4 [pid 6459] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6460] close(3 [pid 6459] <... bpf resumed>) = 3 [pid 6460] <... close resumed>) = 0 executing program [pid 6459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6460] write(1, "executing program\n", 18) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6461 attached [pid 6460] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6459] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6462 attached [pid 6461] set_robust_list(0x55556540f660, 24 [pid 6460] <... bpf resumed>) = 3 [pid 6459] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6461 [pid 6460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6459] <... bpf resumed>) = 5 [pid 6462] set_robust_list(0x55556540f660, 24) = 0 [pid 6462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6463 attached [pid 6462] setpgid(0, 0 [pid 6461] <... set_robust_list resumed>) = 0 [pid 6463] set_robust_list(0x55556540f660, 24 [pid 6462] <... setpgid resumed>) = 0 [pid 6462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6463] <... set_robust_list resumed>) = 0 [pid 6460] <... bpf resumed>) = 4 [pid 6463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6462 [pid 6461] <... prctl resumed>) = 0 [pid 6463] <... prctl resumed>) = 0 [pid 6462] <... openat resumed>) = 3 [pid 6461] setpgid(0, 0 [pid 6459] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6463 [pid 6463] setpgid(0, 0 [pid 6462] write(3, "1000", 4 [pid 6461] <... setpgid resumed>) = 0 [pid 6460] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6459] <... exit_group resumed>) = ? [pid 6463] <... setpgid resumed>) = 0 [pid 6462] <... write resumed>) = 4 [pid 6463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6462] close(3 [pid 6461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6460] <... bpf resumed>) = 5 [pid 6463] <... openat resumed>) = 3 [pid 6462] <... close resumed>) = 0 executing program [pid 6462] write(1, "executing program\n", 18 [pid 6463] write(3, "1000", 4 [pid 6462] <... write resumed>) = 18 [pid 6461] <... openat resumed>) = 3 [pid 6460] exit_group(0) = ? [pid 6463] <... write resumed>) = 4 [pid 6462] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6461] write(3, "1000", 4 [pid 6463] close(3 [pid 6462] <... bpf resumed>) = 3 [pid 6461] <... write resumed>) = 4 [pid 6463] <... close resumed>) = 0 [pid 6461] close(3 [pid 6463] write(1, "executing program\n", 18executing program [pid 6462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6461] <... close resumed>) = 0 [pid 6463] <... write resumed>) = 18 [pid 6462] <... bpf resumed>) = 4 [pid 6461] write(1, "executing program\n", 18 executing program [pid 6463] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6461] <... write resumed>) = 18 [pid 6463] <... bpf resumed>) = 3 [pid 6461] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6462] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6461] <... bpf resumed>) = 3 [pid 6463] <... bpf resumed>) = 4 [pid 6461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6463] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6461] <... bpf resumed>) = 4 [pid 6459] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6461] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6460] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6460, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6464 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6464] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6464 ./strace-static-x86_64: Process 6465 attached [pid 6464] <... set_robust_list resumed>) = 0 [pid 6463] <... bpf resumed>) = 5 [pid 6462] <... bpf resumed>) = 5 [pid 6461] <... bpf resumed>) = 5 [pid 6465] set_robust_list(0x55556540f660, 24 [pid 6464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6463] exit_group(0 [pid 6462] exit_group(0 [pid 6461] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6465 [pid 6465] <... set_robust_list resumed>) = 0 [pid 6464] <... prctl resumed>) = 0 [pid 6463] <... exit_group resumed>) = ? [pid 6462] <... exit_group resumed>) = ? [pid 6461] <... exit_group resumed>) = ? [pid 6465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6464] setpgid(0, 0) = 0 [pid 6464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6461] +++ exited with 0 +++ [pid 6464] <... openat resumed>) = 3 [pid 6464] write(3, "1000", 4 [pid 6465] <... prctl resumed>) = 0 [pid 6463] +++ exited with 0 +++ [pid 6462] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6462, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6464] <... write resumed>) = 4 [pid 6464] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6466 attached ./strace-static-x86_64: Process 6467 attached [pid 6465] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6465] <... setpgid resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6464] <... close resumed>) = 0 [pid 6465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6464] write(1, "executing program\n", 18executing program [pid 5849] <... restart_syscall resumed>) = 0 [pid 6467] set_robust_list(0x55556540f660, 24 [pid 6466] set_robust_list(0x55556540f660, 24 [pid 6465] <... openat resumed>) = 3 [pid 6464] <... write resumed>) = 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6466 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6467 [pid 6464] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6467] <... set_robust_list resumed>) = 0 [pid 6466] <... set_robust_list resumed>) = 0 [pid 6465] write(3, "1000", 4 [pid 6464] <... bpf resumed>) = 3 [pid 6465] <... write resumed>) = 4 [pid 6464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6465] close(3 [pid 6464] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6464] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6468 attached [pid 6467] <... prctl resumed>) = 0 [pid 6466] <... prctl resumed>) = 0 [pid 6465] <... close resumed>) = 0 [pid 6468] set_robust_list(0x55556540f660, 24 [pid 6467] setpgid(0, 0 [pid 6466] setpgid(0, 0 executing program [pid 6465] write(1, "executing program\n", 18 [pid 6464] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6468 [pid 6468] <... set_robust_list resumed>) = 0 [pid 6467] <... setpgid resumed>) = 0 [pid 6466] <... setpgid resumed>) = 0 [pid 6465] <... write resumed>) = 18 [pid 6468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6465] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6468] <... prctl resumed>) = 0 [pid 6467] <... openat resumed>) = 3 [pid 6465] <... bpf resumed>) = 3 [pid 6464] exit_group(0 [pid 6465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6467] write(3, "1000", 4) = 4 [pid 6468] setpgid(0, 0) = 0 [pid 6465] <... bpf resumed>) = 4 [pid 6464] <... exit_group resumed>) = ? [pid 6468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6467] close(3 [pid 6466] <... openat resumed>) = 3 [pid 6465] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6464] +++ exited with 0 +++ [pid 6468] <... openat resumed>) = 3 [pid 6467] <... close resumed>) = 0 [pid 6466] write(3, "1000", 4 [pid 6467] write(1, "executing program\n", 18 [pid 6466] <... write resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6467] <... write resumed>) = 18 [pid 6466] close(3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6468] write(3, "1000", 4 [pid 6467] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6466] <... close resumed>) = 0 [pid 6468] <... write resumed>) = 4 executing program executing program [pid 6468] close(3 [pid 6467] <... bpf resumed>) = 3 [pid 6466] write(1, "executing program\n", 18 [pid 6468] <... close resumed>) = 0 [pid 6468] write(1, "executing program\n", 18 [pid 6467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6466] <... write resumed>) = 18 [pid 6468] <... write resumed>) = 18 [pid 6468] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6467] <... bpf resumed>) = 4 [pid 6466] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6467] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6468] <... bpf resumed>) = 3 [pid 6466] <... bpf resumed>) = 3 [pid 6468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6467] <... bpf resumed>) = 5 [pid 6466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6465] <... bpf resumed>) = 5 [pid 6468] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6467] exit_group(0 [pid 6468] <... bpf resumed>) = 5 [pid 6467] <... exit_group resumed>) = ? [pid 6466] <... bpf resumed>) = 4 [pid 6465] exit_group(0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6468] exit_group(0) = ? [pid 6468] +++ exited with 0 +++ [pid 6467] +++ exited with 0 +++ [pid 6466] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6465] <... exit_group resumed>) = ? [pid 6466] <... bpf resumed>) = 5 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6466] exit_group(0) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6468, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6469 attached [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6469 [pid 6469] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6470 attached ) = 0 [pid 6470] set_robust_list(0x55556540f660, 24) = 0 [pid 6469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6470 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6469] <... prctl resumed>) = 0 [pid 6470] <... prctl resumed>) = 0 [pid 6469] setpgid(0, 0) = 0 [pid 6470] setpgid(0, 0) = 0 [pid 6469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6469] <... openat resumed>) = 3 [pid 6470] write(3, "1000", 4 [pid 6469] write(3, "1000", 4./strace-static-x86_64: Process 6471 attached [pid 6470] <... write resumed>) = 4 [pid 6471] set_robust_list(0x55556540f660, 24 [pid 6470] close(3 [pid 6469] <... write resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6471 [pid 6471] <... set_robust_list resumed>) = 0 [pid 6470] <... close resumed>) = 0 [pid 6469] close(3executing program [pid 6471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6470] write(1, "executing program\n", 18 [pid 6469] <... close resumed>) = 0 executing program [pid 6471] <... prctl resumed>) = 0 [pid 6470] <... write resumed>) = 18 [pid 6469] write(1, "executing program\n", 18 [pid 6471] setpgid(0, 0 [pid 6470] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6469] <... write resumed>) = 18 [pid 6471] <... setpgid resumed>) = 0 [pid 6470] <... bpf resumed>) = 3 [pid 6469] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6469] <... bpf resumed>) = 3 [pid 6469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6471] <... openat resumed>) = 3 [pid 6470] <... bpf resumed>) = 4 [pid 6466] +++ exited with 0 +++ [pid 6465] +++ exited with 0 +++ [pid 6471] write(3, "1000", 4 [pid 6470] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6465, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6471] <... write resumed>) = 4 [pid 6469] <... bpf resumed>) = 4 [pid 6471] close(3) = 0 [pid 6469] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6471] write(1, "executing program\n", 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6471] <... write resumed>) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6471] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6472 attached ) = 3 ./strace-static-x86_64: Process 6473 attached [pid 6472] set_robust_list(0x55556540f660, 24 [pid 6471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6472 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6473 [pid 6473] set_robust_list(0x55556540f660, 24) = 0 [pid 6473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6473] setpgid(0, 0 [pid 6472] <... set_robust_list resumed>) = 0 [pid 6473] <... setpgid resumed>) = 0 [pid 6473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6471] <... bpf resumed>) = 4 [pid 6473] <... openat resumed>) = 3 [pid 6472] <... prctl resumed>) = 0 [pid 6471] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6473] write(3, "1000", 4) = 4 [pid 6472] setpgid(0, 0) = 0 [pid 6473] close(3 [pid 6471] <... bpf resumed>) = 5 [pid 6470] <... bpf resumed>) = 5 [pid 6469] <... bpf resumed>) = 5 [pid 6473] <... close resumed>) = 0 [pid 6472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6471] exit_group(0 [pid 6470] exit_group(0 [pid 6471] <... exit_group resumed>) = ? [pid 6473] write(1, "executing program\n", 18executing program [pid 6470] <... exit_group resumed>) = ? [pid 6469] exit_group(0 [pid 6473] <... write resumed>) = 18 [pid 6469] <... exit_group resumed>) = ? [pid 6473] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6472] <... openat resumed>) = 3 [pid 6471] +++ exited with 0 +++ [pid 6470] +++ exited with 0 +++ [pid 6469] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6469, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6472] write(3, "1000", 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6472] <... write resumed>) = 4 [pid 6473] <... bpf resumed>) = 3 [pid 6472] close(3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6473] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6472] <... close resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 executing program [pid 6472] write(1, "executing program\n", 18) = 18 [pid 6472] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6474 attached ./strace-static-x86_64: Process 6475 attached [pid 6473] <... bpf resumed>) = 5 [pid 6474] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6474 [pid 6472] <... bpf resumed>) = 4 [pid 6475] set_robust_list(0x55556540f660, 24) = 0 [pid 6475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6473] exit_group(0 [pid 6475] <... prctl resumed>) = 0 [pid 6473] <... exit_group resumed>) = ? [pid 6472] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6476 attached [pid 6475] setpgid(0, 0 [pid 6474] <... set_robust_list resumed>) = 0 [pid 6473] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6475 [pid 6475] <... setpgid resumed>) = 0 [pid 6475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6474] setpgid(0, 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6476] set_robust_list(0x55556540f660, 24 [pid 6475] <... openat resumed>) = 3 [pid 6474] <... setpgid resumed>) = 0 [pid 6476] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6476 [pid 6475] write(3, "1000", 4) = 4 [pid 6475] close(3 [pid 6474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6475] <... close resumed>) = 0 executing program [pid 5844] <... restart_syscall resumed>) = 0 [pid 6475] write(1, "executing program\n", 18) = 18 [pid 6475] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6476] <... prctl resumed>) = 0 [pid 6474] <... openat resumed>) = 3 [pid 6472] <... bpf resumed>) = 5 [pid 6476] setpgid(0, 0 [pid 6475] <... bpf resumed>) = 3 [pid 6476] <... setpgid resumed>) = 0 [pid 6475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6474] write(3, "1000", 4 [pid 6472] exit_group(0 [pid 6476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6475] <... bpf resumed>) = 4 [pid 6474] <... write resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6474] close(3 [pid 6472] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6477 attached [pid 6475] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6477] set_robust_list(0x55556540f660, 24 [pid 6475] <... bpf resumed>) = 5 [pid 6477] <... set_robust_list resumed>) = 0 [pid 6476] <... openat resumed>) = 3 [pid 6474] <... close resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6477 [pid 6476] write(3, "1000", 4 [pid 6477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6475] exit_group(0) = ? executing program [pid 6476] <... write resumed>) = 4 [pid 6474] write(1, "executing program\n", 18 [pid 6477] <... prctl resumed>) = 0 [pid 6474] <... write resumed>) = 18 [pid 6477] setpgid(0, 0) = 0 [pid 6474] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6476] close(3 [pid 6477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6476] <... close resumed>) = 0 [pid 6474] <... bpf resumed>) = 3 [pid 6476] write(1, "executing program\n", 18 [pid 6477] <... openat resumed>) = 3 [pid 6474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6477] write(3, "1000", 4) = 4 [pid 6477] close(3) = 0 [pid 6477] write(1, "executing program\n", 18) = 18 executing program [pid 6477] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6476] <... write resumed>) = 18 [pid 6477] <... bpf resumed>) = 3 [pid 6474] <... bpf resumed>) = 4 [pid 6477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6476] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6474] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6477] <... bpf resumed>) = 4 [pid 6476] <... bpf resumed>) = 3 [pid 6476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6475] +++ exited with 0 +++ [pid 6472] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6477] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6476] <... bpf resumed>) = 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6476] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6478 attached [pid 6478] set_robust_list(0x55556540f660, 24 [pid 6474] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6478 [pid 6478] <... set_robust_list resumed>) = 0 [pid 6477] <... bpf resumed>) = 5 [pid 6476] <... bpf resumed>) = 5 [pid 6474] exit_group(0./strace-static-x86_64: Process 6479 attached [pid 6478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6477] exit_group(0 [pid 6476] exit_group(0 [pid 6474] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6479 [pid 6479] set_robust_list(0x55556540f660, 24 [pid 6478] <... prctl resumed>) = 0 [pid 6477] <... exit_group resumed>) = ? [pid 6476] <... exit_group resumed>) = ? [pid 6478] setpgid(0, 0 [pid 6474] +++ exited with 0 +++ [pid 6479] <... set_robust_list resumed>) = 0 [pid 6479] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6474, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6479] <... prctl resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6479] setpgid(0, 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6479] <... setpgid resumed>) = 0 [pid 6478] <... setpgid resumed>) = 0 [pid 6479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6479] <... openat resumed>) = 3 [pid 6478] <... openat resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6480 attached [pid 6478] write(3, "1000", 4 [pid 6480] set_robust_list(0x55556540f660, 24 [pid 6479] write(3, "1000", 4 [pid 6478] <... write resumed>) = 4 [pid 6480] <... set_robust_list resumed>) = 0 [pid 6477] +++ exited with 0 +++ [pid 6476] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6480 [pid 6478] close(3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6479] <... write resumed>) = 4 [pid 6478] <... close resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6480] <... prctl resumed>) = 0 [pid 6478] write(1, "executing program\n", 18 [pid 6480] setpgid(0, 0 [pid 6479] close(3) = 0 executing program [pid 6479] write(1, "executing program\n", 18) = 18 executing program [pid 6479] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6480] <... setpgid resumed>) = 0 [pid 6479] <... bpf resumed>) = 3 [pid 6478] <... write resumed>) = 18 [pid 6479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6479] <... bpf resumed>) = 4 [pid 6478] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6479] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6481 attached [pid 6480] <... openat resumed>) = 3 [pid 6478] <... bpf resumed>) = 3 [pid 6479] <... bpf resumed>) = 5 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6480] write(3, "1000", 4 [pid 6479] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6481 ./strace-static-x86_64: Process 6482 attached [pid 6481] set_robust_list(0x55556540f660, 24 [pid 6480] <... write resumed>) = 4 [pid 6479] <... exit_group resumed>) = ? [pid 6478] <... bpf resumed>) = 4 [pid 6482] set_robust_list(0x55556540f660, 24 [pid 6481] <... set_robust_list resumed>) = 0 [pid 6480] close(3 [pid 6481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6479] +++ exited with 0 +++ [pid 6480] <... close resumed>) = 0 [pid 6478] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6482 [pid 6482] <... set_robust_list resumed>) = 0 executing program [pid 6481] <... prctl resumed>) = 0 [pid 6481] setpgid(0, 0 [pid 6480] write(1, "executing program\n", 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6481] <... setpgid resumed>) = 0 [pid 6480] <... write resumed>) = 18 [pid 6482] <... prctl resumed>) = 0 [pid 6481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6480] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6482] setpgid(0, 0) = 0 [pid 6480] <... bpf resumed>) = 3 [pid 6481] <... openat resumed>) = 3 [pid 6482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6478] <... bpf resumed>) = 5 [pid 6481] write(3, "1000", 4 [pid 6482] <... openat resumed>) = 3 [pid 6481] <... write resumed>) = 4 [pid 6481] close(3 [pid 6480] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6482] write(3, "1000", 4 [pid 6481] <... close resumed>) = 0 [pid 6480] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6478] exit_group(0./strace-static-x86_64: Process 6483 attached executing program [pid 6482] <... write resumed>) = 4 [pid 6481] write(1, "executing program\n", 18 [pid 6480] <... bpf resumed>) = 5 [pid 6478] <... exit_group resumed>) = ? [pid 6483] set_robust_list(0x55556540f660, 24 [pid 6482] close(3 [pid 6481] <... write resumed>) = 18 [pid 6483] <... set_robust_list resumed>) = 0 [pid 6482] <... close resumed>) = 0 [pid 6481] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6483 [pid 6483] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 6482] write(1, "executing program\n", 18 [pid 6481] <... bpf resumed>) = 3 [pid 6483] <... prctl resumed>) = 0 [pid 6482] <... write resumed>) = 18 [pid 6483] setpgid(0, 0 [pid 6482] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6480] exit_group(0 [pid 6483] <... setpgid resumed>) = 0 [pid 6482] <... bpf resumed>) = 3 [pid 6480] <... exit_group resumed>) = ? [pid 6483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6481] <... bpf resumed>) = 4 [pid 6482] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6483] <... openat resumed>) = 3 [pid 6482] <... bpf resumed>) = 4 [pid 6481] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6483] write(3, "1000", 4) = 4 [pid 6482] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6483] close(3) = 0 [pid 6483] write(1, "executing program\n", 18executing program ) = 18 [pid 6483] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6483] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6480] +++ exited with 0 +++ [pid 6478] +++ exited with 0 +++ [pid 6483] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6484 attached ./strace-static-x86_64: Process 6485 attached [pid 6485] set_robust_list(0x55556540f660, 24) = 0 [pid 6484] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6484 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6485 [pid 6485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6484] <... set_robust_list resumed>) = 0 [pid 6485] <... prctl resumed>) = 0 [pid 6485] setpgid(0, 0 [pid 6484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6485] <... setpgid resumed>) = 0 [pid 6484] <... prctl resumed>) = 0 [pid 6485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6484] setpgid(0, 0 [pid 6485] <... openat resumed>) = 3 [pid 6484] <... setpgid resumed>) = 0 [pid 6482] <... bpf resumed>) = 5 [pid 6481] <... bpf resumed>) = 5 [pid 6485] write(3, "1000", 4 [pid 6484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6483] <... bpf resumed>) = 5 [pid 6485] <... write resumed>) = 4 [pid 6485] close(3 [pid 6483] exit_group(0 [pid 6481] exit_group(0 [pid 6485] <... close resumed>) = 0 [pid 6484] <... openat resumed>) = 3 executing program [pid 6485] write(1, "executing program\n", 18 [pid 6483] <... exit_group resumed>) = ? [pid 6482] exit_group(0 [pid 6481] <... exit_group resumed>) = ? [pid 6484] write(3, "1000", 4 [pid 6485] <... write resumed>) = 18 [pid 6483] +++ exited with 0 +++ [pid 6482] <... exit_group resumed>) = ? [pid 6485] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6484] <... write resumed>) = 4 [pid 6484] close(3executing program ) = 0 [pid 6484] write(1, "executing program\n", 18) = 18 [pid 6485] <... bpf resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6485] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6484] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6485] <... bpf resumed>) = 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6484] <... bpf resumed>) = 3 [pid 6485] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6484] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6484] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6486 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6486 [pid 6486] set_robust_list(0x55556540f660, 24 [pid 6484] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6486] <... set_robust_list resumed>) = 0 [pid 6486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6481] +++ exited with 0 +++ [pid 6486] <... prctl resumed>) = 0 [pid 6486] setpgid(0, 0 [pid 6482] +++ exited with 0 +++ [pid 6486] <... setpgid resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6482, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6487 attached [pid 6485] <... bpf resumed>) = 5 [pid 6484] <... bpf resumed>) = 5 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6487] set_robust_list(0x55556540f660, 24 [pid 6486] <... openat resumed>) = 3 [pid 6485] exit_group(0 [pid 6484] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6487 [pid 6487] <... set_robust_list resumed>) = 0 [pid 6486] write(3, "1000", 4 [pid 6485] <... exit_group resumed>) = ? [pid 6484] <... exit_group resumed>) = ? [pid 6487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6486] <... write resumed>) = 4 [pid 6484] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6487] <... prctl resumed>) = 0 [pid 6486] close(3 [pid 6487] setpgid(0, 0 [pid 6486] <... close resumed>) = 0 [pid 6486] write(1, "executing program\n", 18./strace-static-x86_64: Process 6488 attached [pid 6487] <... setpgid resumed>) = 0 [pid 6485] +++ exited with 0 +++ executing program [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6488 [pid 6488] set_robust_list(0x55556540f660, 24 [pid 6487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6486] <... write resumed>) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6488] <... set_robust_list resumed>) = 0 [pid 6486] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6487] <... openat resumed>) = 3 [pid 6486] <... bpf resumed>) = 3 [pid 6488] <... prctl resumed>) = 0 [pid 6488] setpgid(0, 0 [pid 6487] write(3, "1000", 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6489 attached [pid 6488] <... setpgid resumed>) = 0 [pid 6487] <... write resumed>) = 4 [pid 6486] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6489] set_robust_list(0x55556540f660, 24 [pid 6488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6487] close(3 [pid 6486] <... bpf resumed>) = 4 [pid 6489] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6489 [pid 6489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6488] <... openat resumed>) = 3 [pid 6487] <... close resumed>) = 0 [pid 6489] <... prctl resumed>) = 0 [pid 6488] write(3, "1000", 4 [pid 6487] write(1, "executing program\n", 18 [pid 6489] setpgid(0, 0) = 0 [pid 6486] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6486] <... bpf resumed>) = 5 executing program [pid 6488] <... write resumed>) = 4 [pid 6487] <... write resumed>) = 18 [pid 6486] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6489] <... openat resumed>) = 3 [pid 6488] close(3 [pid 6487] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6486] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6490 attached [pid 6489] write(3, "1000", 4 [pid 6488] <... close resumed>) = 0 [pid 6487] <... bpf resumed>) = 3 [pid 6486] +++ exited with 0 +++ [pid 6489] <... write resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6490 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6486, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6489] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6488] write(1, "executing program\n", 18executing program [pid 6487] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6490] set_robust_list(0x55556540f660, 24 [pid 6489] <... close resumed>) = 0 [pid 6488] <... write resumed>) = 18 executing program [pid 6487] <... bpf resumed>) = 4 [pid 6490] <... set_robust_list resumed>) = 0 [pid 6489] write(1, "executing program\n", 18 [pid 6488] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6487] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6489] <... write resumed>) = 18 [pid 6488] <... bpf resumed>) = 3 [pid 6488] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6489] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6490] <... prctl resumed>) = 0 [pid 6488] <... bpf resumed>) = 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6489] <... bpf resumed>) = 3 [pid 6488] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6490] setpgid(0, 0 [pid 6489] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6490] <... setpgid resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6489] <... bpf resumed>) = 4 [pid 6488] <... bpf resumed>) = 5 [pid 6487] <... bpf resumed>) = 5 [pid 6490] <... openat resumed>) = 3 [pid 6488] exit_group(0 [pid 6487] exit_group(0 [pid 6489] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6490] write(3, "1000", 4 [pid 6488] <... exit_group resumed>) = ? [pid 6487] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6491 attached [pid 6490] <... write resumed>) = 4 [pid 6489] <... bpf resumed>) = 5 [pid 6490] close(3 [pid 6489] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6491 [pid 6491] set_robust_list(0x55556540f660, 24 [pid 6490] <... close resumed>) = 0 [pid 6489] <... exit_group resumed>) = ? [pid 6487] +++ exited with 0 +++ [pid 6491] <... set_robust_list resumed>) = 0 [pid 6491] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6490] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6491] <... prctl resumed>) = 0 executing program [pid 6491] setpgid(0, 0 [pid 6490] <... write resumed>) = 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6491] <... setpgid resumed>) = 0 [pid 6491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6490] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6491] write(3, "1000", 4) = 4 [pid 6490] <... bpf resumed>) = 3 [pid 6491] close(3 [pid 6490] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6491] <... close resumed>) = 0 [pid 6491] write(1, "executing program\n", 18) = 18 [pid 6491] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6490] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6491] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6492 attached ) = 4 [pid 6490] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6489] +++ exited with 0 +++ [pid 6488] +++ exited with 0 +++ [pid 6492] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6492 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6492] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6491] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6492] <... prctl resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6492] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6493 attached [pid 6492] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6494 attached [pid 6492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6494] set_robust_list(0x55556540f660, 24 [pid 6493] set_robust_list(0x55556540f660, 24 [pid 6491] <... bpf resumed>) = 5 [pid 6490] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6493 [pid 6493] <... set_robust_list resumed>) = 0 [pid 6494] <... set_robust_list resumed>) = 0 [pid 6493] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6492] write(3, "1000", 4 [pid 6491] exit_group(0 [pid 6490] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6494 [pid 6494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6493] <... prctl resumed>) = 0 [pid 6492] <... write resumed>) = 4 [pid 6491] <... exit_group resumed>) = ? [pid 6490] <... exit_group resumed>) = ? [pid 6494] <... prctl resumed>) = 0 [pid 6493] setpgid(0, 0 [pid 6492] close(3 [pid 6493] <... setpgid resumed>) = 0 [pid 6494] setpgid(0, 0executing program ) = 0 [pid 6493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6492] <... close resumed>) = 0 [pid 6492] write(1, "executing program\n", 18 [pid 6494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6492] <... write resumed>) = 18 [pid 6493] <... openat resumed>) = 3 [pid 6492] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6494] <... openat resumed>) = 3 [pid 6493] write(3, "1000", 4 [pid 6492] <... bpf resumed>) = 3 [pid 6494] write(3, "1000", 4 [pid 6493] <... write resumed>) = 4 [pid 6492] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6494] <... write resumed>) = 4 [pid 6493] close(3 [pid 6492] <... bpf resumed>) = 4 [pid 6494] close(3 [pid 6493] <... close resumed>) = 0 [pid 6494] <... close resumed>) = 0 [pid 6493] write(1, "executing program\n", 18) = 18 [pid 6492] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6494] write(1, "executing program\n", 18 executing program [pid 6493] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6490] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6494] <... write resumed>) = 18 [pid 6493] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6494] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6493] <... bpf resumed>) = 4 [pid 6491] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6494] <... bpf resumed>) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6493] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6495 attached [pid 6494] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6495] set_robust_list(0x55556540f660, 24) = 0 [pid 6494] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6495 [pid 6495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6495] setpgid(0, 0) = 0 [pid 6495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6495] write(3, "1000", 4) = 4 [pid 6495] close(3) = 0 executing program [pid 6495] write(1, "executing program\n", 18) = 18 [pid 6495] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6495] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6494] <... bpf resumed>) = 5 [pid 6493] <... bpf resumed>) = 5 [pid 6492] <... bpf resumed>) = 5 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6495] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6494] exit_group(0 [pid 6493] exit_group(0) = ? [pid 6495] <... bpf resumed>) = 5 [pid 6494] <... exit_group resumed>) = ? [pid 6493] +++ exited with 0 +++ [pid 6492] exit_group(0 [pid 6494] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6492] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6495] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6494, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 6496 attached [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6496] set_robust_list(0x55556540f660, 24 [pid 6495] <... exit_group resumed>) = ? [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6496 [pid 6496] <... set_robust_list resumed>) = 0 [pid 6496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6496] setpgid(0, 0) = 0 [pid 6495] +++ exited with 0 +++ [pid 6492] +++ exited with 0 +++ [pid 6496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6496] <... openat resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6498 attached [pid 6496] write(3, "1000", 4) = 4 [pid 6496] close(3 [pid 6498] set_robust_list(0x55556540f660, 24 [pid 6496] <... close resumed>) = 0 [pid 6498] <... set_robust_list resumed>) = 0 [pid 6496] write(1, "executing program\n", 18./strace-static-x86_64: Process 6499 attached ./strace-static-x86_64: Process 6497 attached [pid 6498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6496] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6498 [pid 6496] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6498] <... prctl resumed>) = 0 [pid 6496] <... bpf resumed>) = 3 [pid 6498] setpgid(0, 0 [pid 6496] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6498] <... setpgid resumed>) = 0 [pid 6497] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6499 ./strace-static-x86_64: Process 6500 attached [pid 6499] set_robust_list(0x55556540f660, 24 [pid 6498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6497] <... set_robust_list resumed>) = 0 [pid 6496] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6500 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6497 [pid 6500] set_robust_list(0x55556540f660, 24 [pid 6499] <... set_robust_list resumed>) = 0 [pid 6498] <... openat resumed>) = 3 [pid 6497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6500] <... set_robust_list resumed>) = 0 [pid 6499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6498] write(3, "1000", 4 [pid 6497] <... prctl resumed>) = 0 [pid 6496] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6499] <... prctl resumed>) = 0 [pid 6498] <... write resumed>) = 4 [pid 6497] setpgid(0, 0 [pid 6496] <... bpf resumed>) = 5 [pid 6499] setpgid(0, 0 [pid 6497] <... setpgid resumed>) = 0 [pid 6499] <... setpgid resumed>) = 0 [pid 6500] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6498] close(3 [pid 6497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6496] exit_group(0 [pid 6500] <... prctl resumed>) = 0 [pid 6499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6498] <... close resumed>) = 0 [pid 6496] <... exit_group resumed>) = ? [pid 6500] setpgid(0, 0 [pid 6499] <... openat resumed>) = 3 [pid 6498] write(1, "executing program\n", 18executing program [pid 6497] <... openat resumed>) = 3 [pid 6496] +++ exited with 0 +++ [pid 6500] <... setpgid resumed>) = 0 [pid 6499] write(3, "1000", 4 [pid 6498] <... write resumed>) = 18 [pid 6497] write(3, "1000", 4 [pid 6500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6499] <... write resumed>) = 4 [pid 6498] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6496, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6500] <... openat resumed>) = 3 [pid 6499] close(3 [pid 6498] <... bpf resumed>) = 3 [pid 6497] <... write resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6500] write(3, "1000", 4 [pid 6499] <... close resumed>) = 0 [pid 6498] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6497] close(3 [pid 6500] <... write resumed>) = 4 [pid 6499] write(1, "executing program\n", 18 [pid 6498] <... bpf resumed>) = 4 [pid 6497] <... close resumed>) = 0 executing program [pid 6500] close(3 [pid 6498] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6500] <... close resumed>) = 0 [pid 6499] <... write resumed>) = 18 [pid 6498] <... bpf resumed>) = 5 executing program executing program [pid 6497] write(1, "executing program\n", 18 [pid 6500] write(1, "executing program\n", 18 [pid 6499] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6498] exit_group(0 [pid 6500] <... write resumed>) = 18 [pid 6500] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6498] <... exit_group resumed>) = ? [pid 6500] <... bpf resumed>) = 3 [pid 6499] <... bpf resumed>) = 3 [pid 6497] <... write resumed>) = 18 [pid 6497] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6500] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6499] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6497] <... bpf resumed>) = 3 [pid 6500] <... bpf resumed>) = 4 [pid 6499] <... bpf resumed>) = 4 [pid 6498] +++ exited with 0 +++ [pid 6497] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6500] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6499] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6498, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6497] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6501 attached [pid 6501] set_robust_list(0x55556540f660, 24) = 0 [pid 6497] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6501 [pid 6501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6501] setpgid(0, 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6501] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6502 attached [pid 6501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6501] write(3, "1000", 4 [pid 6502] set_robust_list(0x55556540f660, 24 [pid 6501] <... write resumed>) = 4 [pid 6502] <... set_robust_list resumed>) = 0 [pid 6501] close(3 [pid 6500] <... bpf resumed>) = 5 [pid 6499] <... bpf resumed>) = 5 [pid 6497] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6502 [pid 6502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6501] <... close resumed>) = 0 executing program [pid 6501] write(1, "executing program\n", 18 [pid 6500] exit_group(0 [pid 6501] <... write resumed>) = 18 [pid 6501] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6500] <... exit_group resumed>) = ? [pid 6497] exit_group(0 [pid 6499] exit_group(0 [pid 6502] <... prctl resumed>) = 0 [pid 6501] <... bpf resumed>) = 3 [pid 6500] +++ exited with 0 +++ [pid 6499] <... exit_group resumed>) = ? [pid 6497] <... exit_group resumed>) = ? [pid 6502] setpgid(0, 0 [pid 6501] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6502] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6500, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6501] <... bpf resumed>) = 4 [pid 6502] <... openat resumed>) = 3 [pid 6501] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6502] write(3, "1000", 4 [pid 6499] +++ exited with 0 +++ [pid 6497] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6502] <... write resumed>) = 4 executing program [pid 6502] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6502] <... close resumed>) = 0 [pid 6502] write(1, "executing program\n", 18) = 18 [pid 6502] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6503 attached ) = 3 [pid 6502] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6502] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6504 attached [pid 6502] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6504] set_robust_list(0x55556540f660, 24) = 0 [pid 6504] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6505 attached [pid 6503] set_robust_list(0x55556540f660, 24 [pid 6502] <... bpf resumed>) = 5 [pid 6501] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6504 [pid 6505] set_robust_list(0x55556540f660, 24 [pid 6504] <... prctl resumed>) = 0 [pid 6503] <... set_robust_list resumed>) = 0 [pid 6501] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6503 [pid 6505] <... set_robust_list resumed>) = 0 [pid 6504] setpgid(0, 0 [pid 6503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6502] exit_group(0 [pid 6501] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6505 [pid 6505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6504] <... setpgid resumed>) = 0 [pid 6503] <... prctl resumed>) = 0 [pid 6502] <... exit_group resumed>) = ? [pid 6504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6503] setpgid(0, 0 [pid 6505] <... prctl resumed>) = 0 [pid 6505] setpgid(0, 0) = 0 [pid 6505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6503] <... setpgid resumed>) = 0 [pid 6503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6504] <... openat resumed>) = 3 [pid 6505] <... openat resumed>) = 3 [pid 6504] write(3, "1000", 4 [pid 6503] <... openat resumed>) = 3 [pid 6505] write(3, "1000", 4 [pid 6504] <... write resumed>) = 4 [pid 6505] <... write resumed>) = 4 [pid 6504] close(3 [pid 6503] write(3, "1000", 4 [pid 6505] close(3 [pid 6504] <... close resumed>) = 0 [pid 6503] <... write resumed>) = 4 [pid 6505] <... close resumed>) = 0 executing program [pid 6504] write(1, "executing program\n", 18 [pid 6503] close(3 [pid 6505] write(1, "executing program\n", 18) = 18 [pid 6505] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program ) = 3 [pid 6505] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6504] <... write resumed>) = 18 [pid 6503] <... close resumed>) = 0 [pid 6502] +++ exited with 0 +++ [pid 6501] +++ exited with 0 +++ [pid 6505] <... bpf resumed>) = 4 [pid 6504] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6503] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6505] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6504] <... bpf resumed>) = 3 [pid 6503] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6505] <... bpf resumed>) = 5 [pid 6504] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6503] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6505] exit_group(0 [pid 6504] <... bpf resumed>) = 4 [pid 6503] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6506 attached [pid 6506] set_robust_list(0x55556540f660, 24 [pid 6505] <... exit_group resumed>) = ? [pid 6503] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6507 attached [pid 6506] <... set_robust_list resumed>) = 0 [pid 6505] +++ exited with 0 +++ [pid 6504] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6503] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6506 [pid 6507] set_robust_list(0x55556540f660, 24 [pid 6506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6503] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6507 [pid 6507] <... set_robust_list resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6506] <... prctl resumed>) = 0 [pid 6504] <... bpf resumed>) = 5 [pid 6507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6506] setpgid(0, 0) = 0 [pid 6507] <... prctl resumed>) = 0 [pid 6503] <... bpf resumed>) = 5 [pid 6504] exit_group(0) = ? [pid 6507] setpgid(0, 0 [pid 6506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6503] exit_group(0 [pid 6507] <... setpgid resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6506] <... openat resumed>) = 3 [pid 6503] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6508 attached [pid 6507] <... openat resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6508 [pid 6506] write(3, "1000", 4 [pid 6508] set_robust_list(0x55556540f660, 24 [pid 6507] write(3, "1000", 4 [pid 6508] <... set_robust_list resumed>) = 0 [pid 6507] <... write resumed>) = 4 [pid 6506] <... write resumed>) = 4 [pid 6508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6507] close(3 [pid 6506] close(3 [pid 6508] <... prctl resumed>) = 0 [pid 6507] <... close resumed>) = 0 [pid 6506] <... close resumed>) = 0 [pid 6508] setpgid(0, 0 [pid 6507] write(1, "executing program\n", 18 [pid 6506] write(1, "executing program\n", 18 executing program executing program [pid 6504] +++ exited with 0 +++ [pid 6503] +++ exited with 0 +++ [pid 6508] <... setpgid resumed>) = 0 [pid 6507] <... write resumed>) = 18 [pid 6506] <... write resumed>) = 18 [pid 6508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6507] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6506] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6508] <... openat resumed>) = 3 [pid 6507] <... bpf resumed>) = 3 [pid 6506] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6504, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6508] write(3, "1000", 4 [pid 6507] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6506] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6508] <... write resumed>) = 4 [pid 6507] <... bpf resumed>) = 4 [pid 6506] <... bpf resumed>) = 4 [pid 6508] close(3) = 0 [pid 6506] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6508] write(1, "executing program\n", 18executing program ) = 18 [pid 6507] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6508] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6508] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6508] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6509 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6509 ./strace-static-x86_64: Process 6510 attached [pid 6509] set_robust_list(0x55556540f660, 24 [pid 6508] <... bpf resumed>) = 5 [pid 6507] <... bpf resumed>) = 5 [pid 6506] <... bpf resumed>) = 5 [pid 6509] <... set_robust_list resumed>) = 0 [pid 6510] set_robust_list(0x55556540f660, 24) = 0 [pid 6510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6508] exit_group(0 [pid 6510] <... prctl resumed>) = 0 [pid 6506] exit_group(0 [pid 6510] setpgid(0, 0 [pid 6509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6508] <... exit_group resumed>) = ? [pid 6507] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6510 [pid 6510] <... setpgid resumed>) = 0 [pid 6506] <... exit_group resumed>) = ? [pid 6510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6507] <... exit_group resumed>) = ? [pid 6510] <... openat resumed>) = 3 [pid 6509] <... prctl resumed>) = 0 [pid 6506] +++ exited with 0 +++ [pid 6510] write(3, "1000", 4 [pid 6509] setpgid(0, 0 [pid 6510] <... write resumed>) = 4 [pid 6509] <... setpgid resumed>) = 0 [pid 6509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6510] close(3 [pid 6509] <... openat resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6506, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6510] <... close resumed>) = 0 [pid 6509] write(3, "1000", 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6510] write(1, "executing program\n", 18executing program [pid 6509] <... write resumed>) = 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6510] <... write resumed>) = 18 [pid 6509] close(3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6510] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6509] <... close resumed>) = 0 ./strace-static-x86_64: Process 6511 attached executing program [pid 6509] write(1, "executing program\n", 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6511 [pid 6509] <... write resumed>) = 18 [pid 6511] set_robust_list(0x55556540f660, 24 [pid 6510] <... bpf resumed>) = 3 [pid 6509] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6511] <... set_robust_list resumed>) = 0 [pid 6510] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6509] <... bpf resumed>) = 3 [pid 6511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6510] <... bpf resumed>) = 4 [pid 6508] +++ exited with 0 +++ [pid 6507] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6511] <... prctl resumed>) = 0 [pid 6510] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6509] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6511] setpgid(0, 0 [pid 6509] <... bpf resumed>) = 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... restart_syscall resumed>) = 0 [pid 6511] <... setpgid resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6509] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6510] <... bpf resumed>) = 5 [pid 6509] <... bpf resumed>) = 5 [pid 6511] <... openat resumed>) = 3 [pid 6510] exit_group(0 [pid 6509] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6510] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6512 attached [pid 6512] set_robust_list(0x55556540f660, 24) = 0 [pid 6512] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6511] write(3, "1000", 4 [pid 6509] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6512 [pid 6511] <... write resumed>) = 4 [pid 6512] <... prctl resumed>) = 0 [pid 6512] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6513 attached [pid 6511] close(3 [pid 6512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6513 [pid 6512] <... openat resumed>) = 3 [pid 6512] write(3, "1000", 4 [pid 6511] <... close resumed>) = 0 [pid 6513] set_robust_list(0x55556540f660, 24 executing program [pid 6511] write(1, "executing program\n", 18 [pid 6513] <... set_robust_list resumed>) = 0 [pid 6512] <... write resumed>) = 4 [pid 6511] <... write resumed>) = 18 [pid 6513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6512] close(3 [pid 6511] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6513] <... prctl resumed>) = 0 [pid 6512] <... close resumed>) = 0 [pid 6511] <... bpf resumed>) = 3 [pid 6513] setpgid(0, 0executing program [pid 6512] write(1, "executing program\n", 18 [pid 6511] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6513] <... setpgid resumed>) = 0 [pid 6512] <... write resumed>) = 18 [pid 6511] <... bpf resumed>) = 4 [pid 6513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6512] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6510] +++ exited with 0 +++ [pid 6511] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6509] +++ exited with 0 +++ [pid 6513] <... openat resumed>) = 3 [pid 6512] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6509, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6510, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6513] write(3, "1000", 4 [pid 6512] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6513] <... write resumed>) = 4 [pid 6512] <... bpf resumed>) = 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6513] close(3) = 0 [pid 6513] write(1, "executing program\n", 18executing program ) = 18 [pid 6512] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6513] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6513] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6514 attached [pid 6513] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6514] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6514 [pid 6514] <... set_robust_list resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6513] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6515 attached [pid 6514] <... prctl resumed>) = 0 [pid 6512] <... bpf resumed>) = 5 [pid 6511] <... bpf resumed>) = 5 [pid 6514] setpgid(0, 0 [pid 6515] set_robust_list(0x55556540f660, 24 [pid 6513] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6511] exit_group(0 [pid 6515] <... set_robust_list resumed>) = 0 [pid 6513] <... bpf resumed>) = 5 [pid 6512] exit_group(0 [pid 6511] <... exit_group resumed>) = ? [pid 6515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6514] <... setpgid resumed>) = 0 [pid 6513] exit_group(0 [pid 6512] <... exit_group resumed>) = ? [pid 6511] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6515 [pid 6515] <... prctl resumed>) = 0 [pid 6513] <... exit_group resumed>) = ? [pid 6515] setpgid(0, 0 [pid 6514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6511, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6515] <... setpgid resumed>) = 0 [pid 6515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6514] <... openat resumed>) = 3 [pid 6515] write(3, "1000", 4 [pid 6514] write(3, "1000", 4 [pid 6515] <... write resumed>) = 4 [pid 6514] <... write resumed>) = 4 [pid 6514] close(3) = 0 [pid 6515] close(3) = 0 executing program [pid 6515] write(1, "executing program\n", 18executing program ) = 18 [pid 6514] write(1, "executing program\n", 18 [pid 6513] +++ exited with 0 +++ [pid 6512] +++ exited with 0 +++ [pid 6514] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6515] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6515] <... bpf resumed>) = 3 [pid 6514] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6515] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6514] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6515] <... bpf resumed>) = 4 [pid 6514] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6518 attached ./strace-static-x86_64: Process 6517 attached ./strace-static-x86_64: Process 6516 attached [pid 6516] set_robust_list(0x55556540f660, 24 [pid 6515] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6518] set_robust_list(0x55556540f660, 24 [pid 6516] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6516 [pid 6517] set_robust_list(0x55556540f660, 24 [pid 6516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6515] <... bpf resumed>) = 5 [pid 6514] <... bpf resumed>) = 4 [pid 6517] <... set_robust_list resumed>) = 0 [pid 6518] <... set_robust_list resumed>) = 0 [pid 6516] <... prctl resumed>) = 0 [pid 6515] exit_group(0 [pid 6518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6516] setpgid(0, 0 [pid 6515] <... exit_group resumed>) = ? [pid 6514] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6517 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6518 [pid 6518] <... prctl resumed>) = 0 [pid 6517] <... prctl resumed>) = 0 [pid 6516] <... setpgid resumed>) = 0 [pid 6515] +++ exited with 0 +++ [pid 6518] setpgid(0, 0 [pid 6517] setpgid(0, 0 [pid 6516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6518] <... setpgid resumed>) = 0 [pid 6517] <... setpgid resumed>) = 0 [pid 6516] <... openat resumed>) = 3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6518] write(3, "1000", 4 [pid 6516] write(3, "1000", 4 [pid 6518] <... write resumed>) = 4 [pid 6516] <... write resumed>) = 4 [pid 6516] close(3 [pid 6518] close(3 [pid 6516] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6519 attached [pid 6518] <... close resumed>) = 0 [pid 6517] <... openat resumed>) = 3 [pid 6516] write(1, "executing program\n", 18 [pid 6517] write(3, "1000", 4 executing program [pid 6518] write(1, "executing program\n", 18 [pid 6517] <... write resumed>) = 4 [pid 6516] <... write resumed>) = 18 executing program [pid 6519] set_robust_list(0x55556540f660, 24 [pid 6518] <... write resumed>) = 18 [pid 6517] close(3 [pid 6516] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6519] <... set_robust_list resumed>) = 0 [pid 6518] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6517] <... close resumed>) = 0 [pid 6516] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6519 [pid 6519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6518] <... bpf resumed>) = 3 executing program [pid 6517] write(1, "executing program\n", 18 [pid 6519] <... prctl resumed>) = 0 [pid 6517] <... write resumed>) = 18 [pid 6518] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6516] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6519] setpgid(0, 0 [pid 6518] <... bpf resumed>) = 4 [pid 6517] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6519] <... setpgid resumed>) = 0 [pid 6518] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6517] <... bpf resumed>) = 3 [pid 6516] <... bpf resumed>) = 4 [pid 6519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6516] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6519] <... openat resumed>) = 3 [pid 6517] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6516] <... bpf resumed>) = 5 [pid 6514] <... bpf resumed>) = 5 [pid 6519] write(3, "1000", 4 [pid 6518] <... bpf resumed>) = 5 [pid 6519] <... write resumed>) = 4 [pid 6518] exit_group(0 [pid 6517] <... bpf resumed>) = 4 [pid 6516] exit_group(0 [pid 6514] exit_group(0 [pid 6519] close(3 [pid 6518] <... exit_group resumed>) = ? [pid 6517] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6516] <... exit_group resumed>) = ? [pid 6514] <... exit_group resumed>) = ? [pid 6519] <... close resumed>) = 0 [pid 6518] +++ exited with 0 +++ [pid 6517] <... bpf resumed>) = 5 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> executing program [pid 6519] write(1, "executing program\n", 18) = 18 [pid 6517] exit_group(0 [pid 6516] +++ exited with 0 +++ [pid 6519] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6517] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6514] +++ exited with 0 +++ ./strace-static-x86_64: Process 6520 attached [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6520] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6521 attached ) = 0 [pid 6519] <... bpf resumed>) = 3 [pid 6517] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6520 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6521 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6521] set_robust_list(0x55556540f660, 24 [pid 6520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6521] <... set_robust_list resumed>) = 0 [pid 6520] <... prctl resumed>) = 0 [pid 6519] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6520] setpgid(0, 0 [pid 6521] <... prctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6521] setpgid(0, 0 [pid 6520] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6522 attached [pid 6520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6519] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6521] <... setpgid resumed>) = 0 [pid 6522] set_robust_list(0x55556540f660, 24 [pid 6521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6520] <... openat resumed>) = 3 [pid 6522] <... set_robust_list resumed>) = 0 [pid 6522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6520] write(3, "1000", 4 [pid 6521] <... openat resumed>) = 3 [pid 6520] <... write resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6522 [pid 6521] write(3, "1000", 4 [pid 6520] close(3executing program [pid 6519] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6521] <... write resumed>) = 4 [pid 6520] <... close resumed>) = 0 [pid 6521] close(3 [pid 6520] write(1, "executing program\n", 18 [pid 6521] <... close resumed>) = 0 [pid 6520] <... write resumed>) = 18 executing program [pid 6521] write(1, "executing program\n", 18 [pid 6520] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6523 attached [pid 6522] <... prctl resumed>) = 0 [pid 6521] <... write resumed>) = 18 [pid 6519] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6523 [pid 6523] set_robust_list(0x55556540f660, 24 [pid 6522] setpgid(0, 0 [pid 6523] <... set_robust_list resumed>) = 0 [pid 6522] <... setpgid resumed>) = 0 [pid 6521] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6520] <... bpf resumed>) = 3 [pid 6519] exit_group(0 [pid 6523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6521] <... bpf resumed>) = 3 [pid 6520] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6519] <... exit_group resumed>) = ? [pid 6523] <... prctl resumed>) = 0 [pid 6522] <... openat resumed>) = 3 [pid 6521] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6520] <... bpf resumed>) = 4 [pid 6523] setpgid(0, 0 [pid 6521] <... bpf resumed>) = 4 [pid 6520] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6523] <... setpgid resumed>) = 0 [pid 6522] write(3, "1000", 4 [pid 6521] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6519] +++ exited with 0 +++ [pid 6523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6522] <... write resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6519, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6522] close(3executing program ) = 0 [pid 6522] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6523] <... openat resumed>) = 3 [pid 6522] <... write resumed>) = 18 ./strace-static-x86_64: Process 6524 attached [pid 6523] write(3, "1000", 4 [pid 6522] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6524] set_robust_list(0x55556540f660, 24 [pid 6523] <... write resumed>) = 4 [pid 6522] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6524 [pid 6524] <... set_robust_list resumed>) = 0 [pid 6523] close(3 [pid 6524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6523] <... close resumed>) = 0 [pid 6522] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6521] <... bpf resumed>) = 5 [pid 6520] <... bpf resumed>) = 5 [pid 6524] <... prctl resumed>) = 0 [pid 6524] setpgid(0, 0 executing program [pid 6523] write(1, "executing program\n", 18 [pid 6522] <... bpf resumed>) = 4 [pid 6521] exit_group(0 [pid 6520] exit_group(0 [pid 6523] <... write resumed>) = 18 [pid 6523] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6524] <... setpgid resumed>) = 0 [pid 6523] <... bpf resumed>) = 3 [pid 6521] <... exit_group resumed>) = ? [pid 6520] <... exit_group resumed>) = ? [pid 6524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6523] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6522] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6521] +++ exited with 0 +++ [pid 6520] +++ exited with 0 +++ [pid 6524] <... openat resumed>) = 3 [pid 6523] <... bpf resumed>) = 4 [pid 6524] write(3, "1000", 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6520, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6523] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6521, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6524] <... write resumed>) = 4 [pid 6522] <... bpf resumed>) = 5 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... restart_syscall resumed>) = 0 [pid 6524] close(3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6524] <... close resumed>) = 0 executing program [pid 6524] write(1, "executing program\n", 18 [pid 6523] <... bpf resumed>) = 5 [pid 6523] exit_group(0 [pid 6522] exit_group(0 [pid 6524] <... write resumed>) = 18 [pid 6524] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6523] <... exit_group resumed>) = ? [pid 6522] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6525 attached [pid 6524] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6526 attached [pid 6525] set_robust_list(0x55556540f660, 24) = 0 [pid 6524] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6525 [pid 6526] set_robust_list(0x55556540f660, 24 [pid 6524] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6526 [pid 6525] <... prctl resumed>) = 0 [pid 6526] <... set_robust_list resumed>) = 0 [pid 6525] setpgid(0, 0) = 0 [pid 6525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6524] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6525] <... openat resumed>) = 3 [pid 6525] write(3, "1000", 4) = 4 [pid 6522] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6526] <... prctl resumed>) = 0 [pid 6524] <... bpf resumed>) = 5 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6525] close(3) = 0 [pid 6525] write(1, "executing program\n", 18 [pid 6524] exit_group(0 [pid 6526] setpgid(0, 0 [pid 6525] <... write resumed>) = 18 [pid 6526] <... setpgid resumed>) = 0 [pid 6525] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6525] <... bpf resumed>) = 3 [pid 6524] <... exit_group resumed>) = ? [pid 6525] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6525] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6526] <... openat resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6526] write(3, "1000", 4) = 4 [pid 6526] close(3) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6526] write(1, "executing program\n", 18./strace-static-x86_64: Process 6527 attached executing program [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6527 [pid 6527] set_robust_list(0x55556540f660, 24 [pid 6526] <... write resumed>) = 18 [pid 6524] +++ exited with 0 +++ [pid 6523] +++ exited with 0 +++ [pid 6527] <... set_robust_list resumed>) = 0 [pid 6526] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6524, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6526] <... bpf resumed>) = 3 [pid 6527] <... prctl resumed>) = 0 [pid 6527] setpgid(0, 0 [pid 6526] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6527] <... setpgid resumed>) = 0 [pid 6526] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6528 attached [pid 6527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6529 attached [pid 6528] set_robust_list(0x55556540f660, 24 [pid 6527] <... openat resumed>) = 3 [pid 6526] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6528 [pid 6525] <... bpf resumed>) = 5 [pid 6529] set_robust_list(0x55556540f660, 24 [pid 6528] <... set_robust_list resumed>) = 0 [pid 6527] write(3, "1000", 4 [pid 6526] <... bpf resumed>) = 5 [pid 6525] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6529 [pid 6529] <... set_robust_list resumed>) = 0 [pid 6528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6527] <... write resumed>) = 4 [pid 6529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6528] <... prctl resumed>) = 0 [pid 6527] close(3 [pid 6526] exit_group(0 [pid 6525] <... exit_group resumed>) = ? [pid 6529] <... prctl resumed>) = 0 [pid 6528] setpgid(0, 0 [pid 6527] <... close resumed>) = 0 [pid 6529] setpgid(0, 0 [pid 6528] <... setpgid resumed>) = 0 [pid 6527] write(1, "executing program\n", 18 [pid 6526] <... exit_group resumed>) = ? [pid 6528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6529] <... setpgid resumed>) = 0 executing program [pid 6527] <... write resumed>) = 18 [pid 6527] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6528] <... openat resumed>) = 3 [pid 6527] <... bpf resumed>) = 3 [pid 6529] <... openat resumed>) = 3 [pid 6527] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6529] write(3, "1000", 4 [pid 6528] write(3, "1000", 4 [pid 6529] <... write resumed>) = 4 [pid 6528] <... write resumed>) = 4 [pid 6527] <... bpf resumed>) = 4 [pid 6526] +++ exited with 0 +++ [pid 6525] +++ exited with 0 +++ [pid 6529] close(3 [pid 6528] close(3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6529] <... close resumed>) = 0 [pid 6528] <... close resumed>) = 0 [pid 6527] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6529] write(1, "executing program\n", 18executing program [pid 6528] write(1, "executing program\n", 18 [pid 6529] <... write resumed>) = 18 [pid 6528] <... write resumed>) = 18 [pid 6529] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6528] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6529] <... bpf resumed>) = 3 [pid 6528] <... bpf resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6529] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6528] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6530 attached ) = 4 ./strace-static-x86_64: Process 6531 attached [pid 6530] set_robust_list(0x55556540f660, 24 [pid 6529] <... bpf resumed>) = 4 [pid 6527] <... bpf resumed>) = 5 [pid 6531] set_robust_list(0x55556540f660, 24 [pid 6530] <... set_robust_list resumed>) = 0 [pid 6529] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6528] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6531] <... set_robust_list resumed>) = 0 [pid 6529] <... bpf resumed>) = 5 [pid 6528] <... bpf resumed>) = 5 [pid 6527] exit_group(0 [pid 6531] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6530 [pid 6530] <... prctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6531 [pid 6531] <... prctl resumed>) = 0 [pid 6530] setpgid(0, 0 [pid 6529] exit_group(0 [pid 6528] exit_group(0 [pid 6527] <... exit_group resumed>) = ? [pid 6531] setpgid(0, 0 [pid 6530] <... setpgid resumed>) = 0 [pid 6529] <... exit_group resumed>) = ? [pid 6528] <... exit_group resumed>) = ? [pid 6527] +++ exited with 0 +++ [pid 6531] <... setpgid resumed>) = 0 [pid 6530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6530] <... openat resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6527, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6531] <... openat resumed>) = 3 [pid 6530] write(3, "1000", 4 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6531] write(3, "1000", 4 [pid 6530] <... write resumed>) = 4 [pid 6531] <... write resumed>) = 4 [pid 6530] close(3 [pid 6531] close(3 [pid 6529] +++ exited with 0 +++ [pid 6528] +++ exited with 0 +++ [pid 6530] <... close resumed>) = 0 [pid 6531] <... close resumed>) = 0 [pid 6530] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6531] write(1, "executing program\n", 18) = 18 executing program [pid 6531] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6530] <... write resumed>) = 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6532 attached [pid 6531] <... bpf resumed>) = 3 [pid 6530] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6532] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6532 [pid 6532] <... set_robust_list resumed>) = 0 [pid 6531] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6530] <... bpf resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6531] <... bpf resumed>) = 4 [pid 6530] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6532] <... prctl resumed>) = 0 [pid 6531] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6530] <... bpf resumed>) = 4 [pid 6532] setpgid(0, 0 [pid 6531] <... bpf resumed>) = 5 [pid 6532] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6531] exit_group(0 [pid 6530] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6531] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6533 attached [pid 6532] <... openat resumed>) = 3 [pid 6530] exit_group(0) = ? [pid 6532] write(3, "1000", 4 [pid 6533] set_robust_list(0x55556540f660, 24 [pid 6532] <... write resumed>) = 4 ./strace-static-x86_64: Process 6534 attached [pid 6533] <... set_robust_list resumed>) = 0 [pid 6532] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6533 [pid 6534] set_robust_list(0x55556540f660, 24 [pid 6532] <... close resumed>) = 0 [pid 6534] <... set_robust_list resumed>) = 0 executing program [pid 6533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6534 [pid 6532] write(1, "executing program\n", 18 [pid 6534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6533] <... prctl resumed>) = 0 [pid 6532] <... write resumed>) = 18 [pid 6534] <... prctl resumed>) = 0 [pid 6534] setpgid(0, 0 [pid 6533] setpgid(0, 0 [pid 6532] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6531] +++ exited with 0 +++ [pid 6530] +++ exited with 0 +++ [pid 6534] <... setpgid resumed>) = 0 [pid 6533] <... setpgid resumed>) = 0 [pid 6534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6532] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6531, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6534] <... openat resumed>) = 3 [pid 6533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6532] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6534] write(3, "1000", 4) = 4 [pid 6534] close(3) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6534] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 6535 attached ) = 18 [pid 6533] <... openat resumed>) = 3 [pid 6532] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6535] set_robust_list(0x55556540f660, 24 [pid 6534] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6533] write(3, "1000", 4 [pid 6534] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6536 attached [pid 6535] <... set_robust_list resumed>) = 0 [pid 6533] <... write resumed>) = 4 [pid 6532] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6535 [pid 6536] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6536 [pid 6536] <... set_robust_list resumed>) = 0 [pid 6536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6534] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6533] close(3 [pid 6532] <... bpf resumed>) = 5 [pid 6536] <... prctl resumed>) = 0 [pid 6535] <... prctl resumed>) = 0 [pid 6534] <... bpf resumed>) = 4 [pid 6533] <... close resumed>) = 0 executing program [pid 6535] setpgid(0, 0 [pid 6533] write(1, "executing program\n", 18 [pid 6536] setpgid(0, 0 [pid 6535] <... setpgid resumed>) = 0 [pid 6534] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6533] <... write resumed>) = 18 [pid 6532] exit_group(0 [pid 6536] <... setpgid resumed>) = 0 [pid 6535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6534] <... bpf resumed>) = 5 [pid 6533] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6535] <... openat resumed>) = 3 [pid 6534] exit_group(0 [pid 6533] <... bpf resumed>) = 3 [pid 6532] <... exit_group resumed>) = ? [pid 6536] <... openat resumed>) = 3 [pid 6535] write(3, "1000", 4 [pid 6536] write(3, "1000", 4 [pid 6535] <... write resumed>) = 4 [pid 6534] <... exit_group resumed>) = ? [pid 6533] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6536] <... write resumed>) = 4 [pid 6535] close(3) = 0 [pid 6535] write(1, "executing program\n", 18executing program ) = 18 [pid 6535] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6536] close(3) = 0 [pid 6535] <... bpf resumed>) = 3 [pid 6536] write(1, "executing program\n", 18 [pid 6535] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6533] <... bpf resumed>) = 4 [pid 6536] <... write resumed>) = 18 [pid 6535] <... bpf resumed>) = 4 [pid 6533] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6536] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6535] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6536] <... bpf resumed>) = 3 [pid 6536] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6536] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6534] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6532] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6537 attached [pid 6537] set_robust_list(0x55556540f660, 24) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6537 [pid 6537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6537] setpgid(0, 0) = 0 [pid 6537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6537] write(3, "1000", 4) = 4 [pid 6537] close(3) = 0 [pid 6537] write(1, "executing program\n", 18executing program ) = 18 [pid 6537] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6533] <... bpf resumed>) = 5 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6535] <... bpf resumed>) = 5 [pid 6533] exit_group(0 [pid 6537] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6536] <... bpf resumed>) = 5 [pid 6535] exit_group(0 [pid 6533] <... exit_group resumed>) = ? [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6537] <... bpf resumed>) = 4 [pid 6536] exit_group(0 [pid 6535] <... exit_group resumed>) = ? [pid 6533] +++ exited with 0 +++ ./strace-static-x86_64: Process 6538 attached [pid 6537] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6536] <... exit_group resumed>) = ? [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6538] set_robust_list(0x55556540f660, 24) = 0 [pid 6538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6536] +++ exited with 0 +++ [pid 6535] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6538 [pid 6538] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6536, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6535, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6538] <... setpgid resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... restart_syscall resumed>) = 0 [pid 6538] <... openat resumed>) = 3 [pid 6538] write(3, "1000", 4 [pid 6537] <... bpf resumed>) = 5 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6538] <... write resumed>) = 4 [pid 6538] close(3) = 0 executing program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6538] write(1, "executing program\n", 18) = 18 [pid 6538] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 ./strace-static-x86_64: Process 6540 attached ./strace-static-x86_64: Process 6539 attached [pid 6538] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6537] exit_group(0) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6540 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6539 [pid 6540] set_robust_list(0x55556540f660, 24 [pid 6539] set_robust_list(0x55556540f660, 24 [pid 6538] <... bpf resumed>) = 4 [pid 6540] <... set_robust_list resumed>) = 0 [pid 6539] <... set_robust_list resumed>) = 0 [pid 6538] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6537] +++ exited with 0 +++ [pid 6540] <... prctl resumed>) = 0 [pid 6539] <... prctl resumed>) = 0 [pid 6540] setpgid(0, 0 [pid 6539] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6540] <... setpgid resumed>) = 0 [pid 6539] <... setpgid resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6541 attached [pid 6540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6541] set_robust_list(0x55556540f660, 24 [pid 6539] <... openat resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6541 [pid 6540] <... openat resumed>) = 3 [pid 6540] write(3, "1000", 4) = 4 [pid 6539] write(3, "1000", 4 [pid 6540] close(3) = 0 [pid 6539] <... write resumed>) = 4 executing program [pid 6540] write(1, "executing program\n", 18 [pid 6539] close(3 [pid 6540] <... write resumed>) = 18 [pid 6539] <... close resumed>) = 0 executing program [pid 6540] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6541] <... set_robust_list resumed>) = 0 [pid 6539] write(1, "executing program\n", 18 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6539] <... write resumed>) = 18 [pid 6541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6539] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6541] <... prctl resumed>) = 0 [pid 6539] <... bpf resumed>) = 3 [pid 6541] setpgid(0, 0 [pid 6539] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6541] <... setpgid resumed>) = 0 [pid 6540] <... bpf resumed>) = 3 [pid 6539] <... bpf resumed>) = 4 [pid 6540] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6541] <... openat resumed>) = 3 [pid 6540] <... bpf resumed>) = 4 [pid 6539] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6540] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6542 attached [pid 6541] write(3, "1000", 4 [pid 6539] <... bpf resumed>) = 5 [pid 6538] <... bpf resumed>) = 5 [pid 6542] set_robust_list(0x55556540f660, 24 [pid 6541] <... write resumed>) = 4 [pid 6540] <... bpf resumed>) = 5 [pid 6538] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6542 [pid 6542] <... set_robust_list resumed>) = 0 [pid 6541] close(3 [pid 6540] exit_group(0 [pid 6539] exit_group(0 [pid 6538] <... exit_group resumed>) = ? [pid 6542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6541] <... close resumed>) = 0 [pid 6540] <... exit_group resumed>) = ? [pid 6539] <... exit_group resumed>) = ? [pid 6538] +++ exited with 0 +++ executing program [pid 6541] write(1, "executing program\n", 18 [pid 6542] <... prctl resumed>) = 0 [pid 6542] setpgid(0, 0) = 0 [pid 6541] <... write resumed>) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6541] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6541] <... bpf resumed>) = 3 [pid 6542] <... openat resumed>) = 3 [pid 6541] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6542] write(3, "1000", 4 [pid 6541] <... bpf resumed>) = 4 [pid 6542] <... write resumed>) = 4 [pid 6542] close(3) = 0 [pid 6541] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6540] +++ exited with 0 +++ [pid 6539] +++ exited with 0 +++ [pid 6542] write(1, "executing program\n", 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6542] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6542] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6542] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6542] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6542] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6545 attached ./strace-static-x86_64: Process 6544 attached ./strace-static-x86_64: Process 6543 attached [pid 6545] set_robust_list(0x55556540f660, 24 [pid 6544] set_robust_list(0x55556540f660, 24 [pid 6543] set_robust_list(0x55556540f660, 24 [pid 6542] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6544 [pid 6545] <... set_robust_list resumed>) = 0 [pid 6544] <... set_robust_list resumed>) = 0 [pid 6543] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6545 [pid 6545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6542] <... bpf resumed>) = 5 [pid 6541] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6543 [pid 6545] <... prctl resumed>) = 0 [pid 6544] <... prctl resumed>) = 0 [pid 6543] <... prctl resumed>) = 0 [pid 6545] setpgid(0, 0) = 0 [pid 6544] setpgid(0, 0 [pid 6543] setpgid(0, 0 [pid 6542] exit_group(0 [pid 6541] exit_group(0 [pid 6545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6544] <... setpgid resumed>) = 0 [pid 6543] <... setpgid resumed>) = 0 [pid 6545] <... openat resumed>) = 3 [pid 6544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6542] <... exit_group resumed>) = ? [pid 6541] <... exit_group resumed>) = ? [pid 6544] <... openat resumed>) = 3 [pid 6545] write(3, "1000", 4 [pid 6544] write(3, "1000", 4 [pid 6543] <... openat resumed>) = 3 [pid 6545] <... write resumed>) = 4 [pid 6544] <... write resumed>) = 4 [pid 6545] close(3 executing program [pid 6543] write(3, "1000", 4 [pid 6545] <... close resumed>) = 0 [pid 6544] close(3 [pid 6545] write(1, "executing program\n", 18 [pid 6543] <... write resumed>) = 4 [pid 6544] <... close resumed>) = 0 executing program [pid 6545] <... write resumed>) = 18 [pid 6544] write(1, "executing program\n", 18 [pid 6543] close(3 [pid 6545] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6544] <... write resumed>) = 18 [pid 6543] <... close resumed>) = 0 [pid 6545] <... bpf resumed>) = 3 executing program [pid 6544] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6543] write(1, "executing program\n", 18 [pid 6542] +++ exited with 0 +++ [pid 6541] +++ exited with 0 +++ [pid 6543] <... write resumed>) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6542, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6541, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6545] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6543] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6545] <... bpf resumed>) = 4 [pid 6544] <... bpf resumed>) = 3 [pid 6545] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6543] <... bpf resumed>) = 3 [pid 6544] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6545] <... bpf resumed>) = 5 [pid 6543] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6545] exit_group(0 [pid 6544] <... bpf resumed>) = 4 [pid 6543] <... bpf resumed>) = 4 [pid 6545] <... exit_group resumed>) = ? [pid 6543] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6544] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6543] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6545] +++ exited with 0 +++ [pid 6544] exit_group(0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6546 attached [pid 6543] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6544] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6547 attached [pid 6546] set_robust_list(0x55556540f660, 24 [pid 6543] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6546 [pid 6546] <... set_robust_list resumed>) = 0 [pid 6547] set_robust_list(0x55556540f660, 24) = 0 [pid 6547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6547] setpgid(0, 0 [pid 6546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6544] +++ exited with 0 +++ [pid 6543] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6547 [pid 6546] <... prctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6547] <... setpgid resumed>) = 0 [pid 6546] setpgid(0, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6543, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6548 attached [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6547] <... openat resumed>) = 3 [pid 6548] set_robust_list(0x55556540f660, 24 [pid 6546] <... setpgid resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6548 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6548] <... set_robust_list resumed>) = 0 [pid 6547] write(3, "1000", 4 [pid 6548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6547] <... write resumed>) = 4 [pid 6546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6547] close(3 [pid 6548] <... prctl resumed>) = 0 [pid 6547] <... close resumed>) = 0 [pid 6548] setpgid(0, 0 [pid 6547] write(1, "executing program\n", 18executing program [pid 6548] <... setpgid resumed>) = 0 [pid 6547] <... write resumed>) = 18 [pid 6548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6547] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6546] <... openat resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6548] <... openat resumed>) = 3 [pid 6547] <... bpf resumed>) = 3 [pid 6548] write(3, "1000", 4./strace-static-x86_64: Process 6550 attached ./strace-static-x86_64: Process 6549 attached [pid 6547] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6546] write(3, "1000", 4 [pid 6550] set_robust_list(0x55556540f660, 24 [pid 6549] set_robust_list(0x55556540f660, 24 [pid 6548] <... write resumed>) = 4 [pid 6547] <... bpf resumed>) = 4 [pid 6546] <... write resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6549 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6550 [pid 6550] <... set_robust_list resumed>) = 0 [pid 6549] <... set_robust_list resumed>) = 0 [pid 6548] close(3 [pid 6547] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6546] close(3 [pid 6550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6548] <... close resumed>) = 0 [pid 6547] <... bpf resumed>) = 5 [pid 6546] <... close resumed>) = 0 [pid 6548] write(1, "executing program\n", 18executing program [pid 6550] <... prctl resumed>) = 0 [pid 6549] <... prctl resumed>) = 0 [pid 6548] <... write resumed>) = 18 [pid 6547] exit_group(0 executing program [pid 6546] write(1, "executing program\n", 18 [pid 6550] setpgid(0, 0 [pid 6549] setpgid(0, 0 [pid 6548] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6547] <... exit_group resumed>) = ? [pid 6546] <... write resumed>) = 18 [pid 6550] <... setpgid resumed>) = 0 [pid 6549] <... setpgid resumed>) = 0 [pid 6548] <... bpf resumed>) = 3 [pid 6547] +++ exited with 0 +++ [pid 6546] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6548] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6546] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6550] <... openat resumed>) = 3 [pid 6549] <... openat resumed>) = 3 [pid 6548] <... bpf resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6550] write(3, "1000", 4) = 4 [pid 6549] write(3, "1000", 4 [pid 6550] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6549] <... write resumed>) = 4 [pid 6550] <... close resumed>) = 0 [pid 6549] close(3executing program executing program ./strace-static-x86_64: Process 6551 attached [pid 6550] write(1, "executing program\n", 18 [pid 6549] <... close resumed>) = 0 [pid 6549] write(1, "executing program\n", 18 [pid 6551] set_robust_list(0x55556540f660, 24 [pid 6550] <... write resumed>) = 18 [pid 6549] <... write resumed>) = 18 [pid 6551] <... set_robust_list resumed>) = 0 [pid 6550] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6549] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6548] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6551] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6550] <... bpf resumed>) = 3 [pid 6549] <... bpf resumed>) = 3 [pid 6548] <... bpf resumed>) = 5 [pid 6546] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6551 [pid 6551] <... prctl resumed>) = 0 [pid 6550] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6548] exit_group(0 [pid 6546] <... bpf resumed>) = 4 [pid 6551] setpgid(0, 0 [pid 6550] <... bpf resumed>) = 4 [pid 6549] <... bpf resumed>) = 4 [pid 6548] <... exit_group resumed>) = ? [pid 6551] <... setpgid resumed>) = 0 [pid 6549] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6550] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6548] +++ exited with 0 +++ [pid 6546] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6551] <... openat resumed>) = 3 [pid 6551] write(3, "1000", 4) = 4 [pid 6551] close(3) = 0 executing program [pid 6551] write(1, "executing program\n", 18) = 18 [pid 6551] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6551] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6551] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556540f650) = 6552 ./strace-static-x86_64: Process 6552 attached [pid 6551] <... bpf resumed>) = 5 [pid 6550] <... bpf resumed>) = 5 [pid 6549] <... bpf resumed>) = 5 [pid 6546] <... bpf resumed>) = 5 [pid 6551] exit_group(0) = ? [pid 6550] exit_group(0 [pid 6552] set_robust_list(0x55556540f660, 24 [pid 6551] +++ exited with 0 +++ [pid 6550] <... exit_group resumed>) = ? [pid 6546] exit_group(0 [pid 6552] <... set_robust_list resumed>) = 0 [pid 6550] +++ exited with 0 +++ [pid 6549] exit_group(0 [pid 6546] <... exit_group resumed>) = ? [pid 6549] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6546] +++ exited with 0 +++ [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... restart_syscall resumed>) = 0 [pid 6549] +++ exited with 0 +++ [pid 6552] <... prctl resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6552] setpgid(0, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6553 attached ./strace-static-x86_64: Process 6555 attached ./strace-static-x86_64: Process 6554 attached [pid 6552] <... setpgid resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6549, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6554] set_robust_list(0x55556540f660, 24 [pid 6553] set_robust_list(0x55556540f660, 24 [pid 6552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6555 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6553 [pid 6555] set_robust_list(0x55556540f660, 24 [pid 6554] <... set_robust_list resumed>) = 0 [pid 6553] <... set_robust_list resumed>) = 0 [pid 6552] <... openat resumed>) = 3 [pid 6555] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6554 [pid 6553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6553] <... prctl resumed>) = 0 [pid 6552] write(3, "1000", 4 [pid 6555] <... prctl resumed>) = 0 [pid 6555] setpgid(0, 0) = 0 [pid 6555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6554] <... prctl resumed>) = 0 [pid 6553] setpgid(0, 0 [pid 6552] <... write resumed>) = 4 [pid 6554] setpgid(0, 0) = 0 [pid 6553] <... setpgid resumed>) = 0 [pid 6552] close(3 [pid 6555] <... openat resumed>) = 3 [pid 6554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6552] <... close resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6555] write(3, "1000", 4) = 4 [pid 6555] close(3) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6552] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 6556 attached [pid 6555] write(1, "executing program\n", 18) = 18 [pid 6555] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6556] set_robust_list(0x55556540f660, 24 [pid 6555] <... bpf resumed>) = 3 [pid 6554] <... openat resumed>) = 3 [pid 6552] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6556 [pid 6553] <... openat resumed>) = 3 [pid 6556] <... set_robust_list resumed>) = 0 [pid 6553] write(3, "1000", 4 [pid 6552] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6555] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6554] write(3, "1000", 4 [pid 6553] <... write resumed>) = 4 [pid 6556] <... prctl resumed>) = 0 [pid 6555] <... bpf resumed>) = 4 [pid 6556] setpgid(0, 0 [pid 6553] close(3 [pid 6552] <... bpf resumed>) = 3 [pid 6556] <... setpgid resumed>) = 0 [pid 6556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6555] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6553] <... close resumed>) = 0 executing program [pid 6552] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6554] <... write resumed>) = 4 [pid 6553] write(1, "executing program\n", 18 [pid 6554] close(3 [pid 6553] <... write resumed>) = 18 [pid 6554] <... close resumed>) = 0 executing program [pid 6556] <... openat resumed>) = 3 [pid 6555] exit_group(0 [pid 6554] write(1, "executing program\n", 18 [pid 6553] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6556] write(3, "1000", 4 [pid 6555] <... exit_group resumed>) = ? [pid 6554] <... write resumed>) = 18 [pid 6552] <... bpf resumed>) = 4 [pid 6556] <... write resumed>) = 4 [pid 6555] +++ exited with 0 +++ [pid 6553] <... bpf resumed>) = 3 [pid 6556] close(3 [pid 6554] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6552] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6556] <... close resumed>) = 0 [pid 6554] <... bpf resumed>) = 3 [pid 6553] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6555, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6556] write(1, "executing program\n", 18 [pid 6554] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6556] <... write resumed>) = 18 [pid 6553] <... bpf resumed>) = 4 [pid 6556] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6554] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6554] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6553] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6552] <... bpf resumed>) = 5 [pid 6556] <... bpf resumed>) = 3 [pid 6553] <... bpf resumed>) = 5 [pid 6552] exit_group(0 [pid 6556] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6554] <... bpf resumed>) = 5 [pid 6553] exit_group(0 [pid 6552] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6554] exit_group(0 [pid 6556] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6557 attached [pid 6554] <... exit_group resumed>) = ? [pid 6553] <... exit_group resumed>) = ? [pid 6552] +++ exited with 0 +++ [pid 6556] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6557 [pid 6557] set_robust_list(0x55556540f660, 24 [pid 6556] <... bpf resumed>) = 5 [pid 6554] +++ exited with 0 +++ [pid 6557] <... set_robust_list resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6554, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6556] exit_group(0 [pid 6557] <... prctl resumed>) = 0 [pid 6557] setpgid(0, 0 [pid 6556] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6558 attached [pid 6557] <... setpgid resumed>) = 0 [pid 6558] set_robust_list(0x55556540f660, 24 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6558] <... set_robust_list resumed>) = 0 [pid 6557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6558 ./strace-static-x86_64: Process 6559 attached [pid 6559] set_robust_list(0x55556540f660, 24 [pid 6558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6557] <... openat resumed>) = 3 [pid 6559] <... set_robust_list resumed>) = 0 [pid 6558] <... prctl resumed>) = 0 [pid 6557] write(3, "1000", 4 [pid 6558] setpgid(0, 0 [pid 6557] <... write resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6559 [pid 6559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6559] setpgid(0, 0) = 0 [pid 6559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6558] <... setpgid resumed>) = 0 [pid 6557] close(3executing program ) = 0 [pid 6558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6557] write(1, "executing program\n", 18 [pid 6559] <... openat resumed>) = 3 [pid 6558] <... openat resumed>) = 3 [pid 6557] <... write resumed>) = 18 [pid 6559] write(3, "1000", 4 [pid 6558] write(3, "1000", 4 [pid 6557] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6559] <... write resumed>) = 4 [pid 6558] <... write resumed>) = 4 [pid 6559] close(3 [pid 6558] close(3 [pid 6557] <... bpf resumed>) = 3 [pid 6559] <... close resumed>) = 0 [pid 6559] write(1, "executing program\n", 18 [pid 6558] <... close resumed>) = 0 [pid 6557] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6559] <... write resumed>) = 18 executing program [pid 6558] write(1, "executing program\n", 18 [pid 6557] <... bpf resumed>) = 4 [pid 6559] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6558] <... write resumed>) = 18 [pid 6553] +++ exited with 0 +++ [pid 6559] <... bpf resumed>) = 3 [pid 6558] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6556] +++ exited with 0 +++ [pid 6559] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6558] <... bpf resumed>) = 3 [pid 6557] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6553, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6559] <... bpf resumed>) = 4 [pid 6558] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6559] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6558] <... bpf resumed>) = 4 [pid 6558] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6560 attached [pid 6559] <... bpf resumed>) = 5 [pid 6557] <... bpf resumed>) = 5 [pid 6560] set_robust_list(0x55556540f660, 24 [pid 6559] exit_group(0 [pid 6558] <... bpf resumed>) = 5 [pid 6557] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6560 [pid 6560] <... set_robust_list resumed>) = 0 [pid 6559] <... exit_group resumed>) = ? [pid 6558] exit_group(0 [pid 6557] <... exit_group resumed>) = ? [pid 6560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6558] <... exit_group resumed>) = ? [pid 6557] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6560] <... prctl resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6560] setpgid(0, 0./strace-static-x86_64: Process 6561 attached ) = 0 [pid 6560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6561] set_robust_list(0x55556540f660, 24) = 0 [pid 6560] <... openat resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6561 [pid 6561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6560] write(3, "1000", 4) = 4 [pid 6561] <... prctl resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6561] setpgid(0, 0 [pid 6560] close(3 [pid 6561] <... setpgid resumed>) = 0 [pid 6560] <... close resumed>) = 0 [pid 6561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6560] write(1, "executing program\n", 18 executing program [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6560] <... write resumed>) = 18 [pid 6560] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6562 attached [pid 6561] <... openat resumed>) = 3 [pid 6559] +++ exited with 0 +++ [pid 6558] +++ exited with 0 +++ [pid 6561] write(3, "1000", 4 [pid 6560] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6562 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6559, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6562] set_robust_list(0x55556540f660, 24 [pid 6561] <... write resumed>) = 4 [pid 6562] <... set_robust_list resumed>) = 0 [pid 6560] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6561] close(3executing program ) = 0 [pid 6560] <... bpf resumed>) = 4 [pid 6562] <... prctl resumed>) = 0 [pid 6561] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6561] <... write resumed>) = 18 [pid 6560] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6563 attached [pid 6561] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6564 attached [pid 6563] set_robust_list(0x55556540f660, 24 [pid 6562] setpgid(0, 0 [pid 6560] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6563 [pid 6561] <... bpf resumed>) = 3 [pid 6564] set_robust_list(0x55556540f660, 24 [pid 6563] <... set_robust_list resumed>) = 0 [pid 6562] <... setpgid resumed>) = 0 [pid 6560] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6564 [pid 6561] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6564] <... set_robust_list resumed>) = 0 [pid 6563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6560] <... exit_group resumed>) = ? [pid 6561] <... bpf resumed>) = 4 [pid 6564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6563] <... prctl resumed>) = 0 [pid 6563] setpgid(0, 0 [pid 6562] <... openat resumed>) = 3 [pid 6564] <... prctl resumed>) = 0 [pid 6563] <... setpgid resumed>) = 0 [pid 6564] setpgid(0, 0 [pid 6563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6562] write(3, "1000", 4 [pid 6564] <... setpgid resumed>) = 0 [pid 6561] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6562] <... write resumed>) = 4 [pid 6564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6563] <... openat resumed>) = 3 [pid 6562] close(3 [pid 6561] exit_group(0 [pid 6563] write(3, "1000", 4 [pid 6562] <... close resumed>) = 0 [pid 6563] <... write resumed>) = 4 [pid 6561] <... exit_group resumed>) = ? [pid 6564] <... openat resumed>) = 3 [pid 6563] close(3 [pid 6562] write(1, "executing program\n", 18 [pid 6564] write(3, "1000", 4executing program ) = 4 [pid 6563] <... close resumed>) = 0 [pid 6562] <... write resumed>) = 18 executing program [pid 6564] close(3 [pid 6563] write(1, "executing program\n", 18 [pid 6562] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6564] <... close resumed>) = 0 [pid 6563] <... write resumed>) = 18 executing program [pid 6562] <... bpf resumed>) = 3 [pid 6564] write(1, "executing program\n", 18 [pid 6563] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6564] <... write resumed>) = 18 [pid 6563] <... bpf resumed>) = 3 [pid 6562] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6564] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6563] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6562] <... bpf resumed>) = 4 [pid 6564] <... bpf resumed>) = 3 [pid 6563] <... bpf resumed>) = 4 [pid 6564] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6562] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6563] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6564] <... bpf resumed>) = 4 [pid 6564] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6560] +++ exited with 0 +++ [pid 6561] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6565 attached [pid 6565] set_robust_list(0x55556540f660, 24) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6565 ./strace-static-x86_64: Process 6566 attached [pid 6565] <... prctl resumed>) = 0 [pid 6566] set_robust_list(0x55556540f660, 24) = 0 [pid 6565] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6566 [pid 6565] <... setpgid resumed>) = 0 [pid 6565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6565] <... openat resumed>) = 3 [pid 6566] <... prctl resumed>) = 0 [pid 6565] write(3, "1000", 4 [pid 6566] setpgid(0, 0 [pid 6565] <... write resumed>) = 4 [pid 6566] <... setpgid resumed>) = 0 [pid 6565] close(3 [pid 6566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6565] <... close resumed>) = 0 executing program [pid 6566] <... openat resumed>) = 3 [pid 6565] write(1, "executing program\n", 18 [pid 6566] write(3, "1000", 4 [pid 6565] <... write resumed>) = 18 [pid 6566] <... write resumed>) = 4 [pid 6566] close(3 [pid 6565] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6566] <... close resumed>) = 0 [pid 6565] <... bpf resumed>) = 3 [pid 6566] write(1, "executing program\n", 18 [pid 6565] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6566] <... write resumed>) = 18 [pid 6565] <... bpf resumed>) = 4 [pid 6566] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6565] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6566] <... bpf resumed>) = 3 [pid 6566] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6566] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6565] <... bpf resumed>) = 5 [pid 6564] <... bpf resumed>) = 5 [pid 6563] <... bpf resumed>) = 5 [pid 6562] <... bpf resumed>) = 5 [pid 6566] exit_group(0 [pid 6565] exit_group(0 [pid 6564] exit_group(0 [pid 6563] exit_group(0 [pid 6562] exit_group(0 [pid 6566] <... exit_group resumed>) = ? [pid 6565] <... exit_group resumed>) = ? [pid 6564] <... exit_group resumed>) = ? [pid 6563] <... exit_group resumed>) = ? [pid 6562] <... exit_group resumed>) = ? [pid 6566] +++ exited with 0 +++ [pid 6565] +++ exited with 0 +++ [pid 6563] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6565, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6563, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6566, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6564] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6562] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6567 attached [pid 6567] set_robust_list(0x55556540f660, 24 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6567 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6567] <... set_robust_list resumed>) = 0 [pid 6567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6567] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6570 attached ./strace-static-x86_64: Process 6569 attached ./strace-static-x86_64: Process 6568 attached [pid 6567] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6570] set_robust_list(0x55556540f660, 24 [pid 6569] set_robust_list(0x55556540f660, 24 [pid 6568] set_robust_list(0x55556540f660, 24 [pid 6567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6569] <... set_robust_list resumed>) = 0 [pid 6569] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6571 attached [pid 6570] <... set_robust_list resumed>) = 0 [pid 6568] <... set_robust_list resumed>) = 0 [pid 6567] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6568 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6570 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6569 [pid 6569] <... prctl resumed>) = 0 [pid 6570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6571] set_robust_list(0x55556540f660, 24 executing program [pid 6568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6569] setpgid(0, 0 [pid 6568] <... prctl resumed>) = 0 [pid 6570] <... prctl resumed>) = 0 [pid 6571] <... set_robust_list resumed>) = 0 [pid 6570] setpgid(0, 0 [pid 6569] <... setpgid resumed>) = 0 [pid 6570] <... setpgid resumed>) = 0 [pid 6568] setpgid(0, 0 [pid 6570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6568] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6571 [pid 6567] write(3, "1000", 4) = 4 [pid 6571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6567] close(3) = 0 [pid 6571] <... prctl resumed>) = 0 [pid 6567] write(1, "executing program\n", 18 [pid 6571] setpgid(0, 0 [pid 6567] <... write resumed>) = 18 [pid 6571] <... setpgid resumed>) = 0 [pid 6569] <... openat resumed>) = 3 [pid 6567] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6569] write(3, "1000", 4 [pid 6567] <... bpf resumed>) = 3 [pid 6571] <... openat resumed>) = 3 [pid 6569] <... write resumed>) = 4 [pid 6567] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6571] write(3, "1000", 4 [pid 6569] close(3 [pid 6567] <... bpf resumed>) = 4 [pid 6571] <... write resumed>) = 4 [pid 6569] <... close resumed>) = 0 executing program [pid 6568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6571] close(3 [pid 6570] <... openat resumed>) = 3 [pid 6569] write(1, "executing program\n", 18 [pid 6571] <... close resumed>) = 0 [pid 6570] write(3, "1000", 4 [pid 6569] <... write resumed>) = 18 [pid 6568] <... openat resumed>) = 3 [pid 6567] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6571] write(1, "executing program\n", 18executing program [pid 6570] <... write resumed>) = 4 [pid 6569] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6568] write(3, "1000", 4 [pid 6567] <... bpf resumed>) = 5 [pid 6571] <... write resumed>) = 18 [pid 6570] close(3 [pid 6569] <... bpf resumed>) = 3 [pid 6570] <... close resumed>) = 0 [pid 6571] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6570] write(1, "executing program\n", 18 [pid 6569] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6568] <... write resumed>) = 4 [pid 6567] exit_group(0 [pid 6571] <... bpf resumed>) = 3 [pid 6570] <... write resumed>) = 18 [pid 6569] <... bpf resumed>) = 4 [pid 6568] close(3 [pid 6571] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6570] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6568] <... close resumed>) = 0 [pid 6567] <... exit_group resumed>) = ? [pid 6571] <... bpf resumed>) = 4 [pid 6570] <... bpf resumed>) = 3 [pid 6569] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6568] write(1, "executing program\n", 18 [pid 6567] +++ exited with 0 +++ executing program [pid 6571] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6570] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6568] <... write resumed>) = 18 [pid 6570] <... bpf resumed>) = 4 [pid 6568] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6570] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6568] <... bpf resumed>) = 3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6568] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6568] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6572 attached [pid 6572] set_robust_list(0x55556540f660, 24 [pid 6571] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6572 [pid 6572] <... set_robust_list resumed>) = 0 [pid 6570] <... bpf resumed>) = 5 [pid 6568] <... bpf resumed>) = 5 [pid 6572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6569] <... bpf resumed>) = 5 [pid 6572] <... prctl resumed>) = 0 [pid 6571] exit_group(0 [pid 6569] exit_group(0 [pid 6572] setpgid(0, 0 [pid 6570] exit_group(0 [pid 6568] exit_group(0 [pid 6570] <... exit_group resumed>) = ? [pid 6572] <... setpgid resumed>) = 0 [pid 6571] <... exit_group resumed>) = ? [pid 6569] <... exit_group resumed>) = ? [pid 6572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6570] +++ exited with 0 +++ [pid 6568] <... exit_group resumed>) = ? [pid 6568] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6573 attached [pid 6573] set_robust_list(0x55556540f660, 24) = 0 [pid 6572] <... openat resumed>) = 3 [pid 6573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6572] write(3, "1000", 4 [pid 6573] <... prctl resumed>) = 0 [ 85.230843][ T6571] [ 85.233260][ T6571] ====================================================== [ 85.240277][ T6571] WARNING: possible circular locking dependency detected [ 85.247299][ T6571] 6.12.0-rc4-syzkaller-00168-ge31a8219fbfc #0 Not tainted [ 85.254404][ T6571] ------------------------------------------------------ [ 85.261434][ T6571] syz-executor494/6571 is trying to acquire lock: [ 85.267868][ T6571] ffff888026e911d0 (&htab->lockdep_key#2){....}-{2:2}, at: htab_lock_bucket+0x1a4/0x370 [ 85.277647][ T6571] [ 85.277647][ T6571] but task is already holding lock: [ 85.285024][ T6571] ffff88807bc5b1d0 (&htab->lockdep_key#5){....}-{2:2}, at: htab_lock_bucket+0x1a4/0x370 [ 85.294794][ T6571] [ 85.294794][ T6571] which lock already depends on the new lock. [ 85.294794][ T6571] [ 85.305194][ T6571] [ 85.305194][ T6571] the existing dependency chain (in reverse order) is: [ 85.314202][ T6571] [ 85.314202][ T6571] -> #1 (&htab->lockdep_key#5){....}-{2:2}: [ 85.322319][ T6571] lock_acquire+0x1ed/0x550 [ 85.327367][ T6571] _raw_spin_lock+0x2e/0x40 [ 85.332422][ T6571] htab_lock_bucket+0x1a4/0x370 [ 85.337787][ T6571] htab_lru_map_delete_elem+0x1f1/0x700 [ 85.343858][ T6571] 0xffffffffa0003923 [ 85.348369][ T6571] bpf_trace_run2+0x2ec/0x540 [ 85.353563][ T6571] __traceiter_contention_begin+0x7b/0xb0 [ 85.359809][ T6571] trace_contention_begin+0x117/0x140 [ 85.365701][ T6571] __pv_queued_spin_lock_slowpath+0x114/0xdb0 [ 85.372282][ T6571] queued_spin_lock_slowpath+0x42/0x50 [ 85.378276][ T6571] do_raw_spin_lock+0x272/0x370 [ 85.383646][ T6571] htab_lock_bucket+0x1a4/0x370 [ 85.389022][ T6571] htab_lru_map_delete_elem+0x1f1/0x700 [ 85.395100][ T6571] bpf_prog_6f5f05285f674219+0x43/0x4c [ 85.401074][ T6571] bpf_trace_run2+0x2ec/0x540 [ 85.406292][ T6571] __traceiter_contention_begin+0x7b/0xb0 [ 85.412575][ T6571] trace_contention_begin+0xf5/0x120 [ 85.418382][ T6571] __mutex_lock+0x147/0xd70 [ 85.423409][ T6571] uprobe_clear_state+0x54/0x290 [ 85.428871][ T6571] __mmput+0x5f/0x390 [ 85.433376][ T6571] exit_mm+0x220/0x310 [ 85.437963][ T6571] do_exit+0x9b2/0x28e0 [ 85.442633][ T6571] do_group_exit+0x207/0x2c0 [ 85.447744][ T6571] __x64_sys_exit_group+0x3f/0x40 [ 85.453284][ T6571] x64_sys_call+0x2634/0x2640 [ 85.458483][ T6571] do_syscall_64+0xf3/0x230 [ 85.463528][ T6571] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.469946][ T6571] [ 85.469946][ T6571] -> #0 (&htab->lockdep_key#2){....}-{2:2}: [ 85.478038][ T6571] validate_chain+0x18ef/0x5920 [ 85.483409][ T6571] __lock_acquire+0x1384/0x2050 [ 85.488783][ T6571] lock_acquire+0x1ed/0x550 [ 85.493814][ T6571] _raw_spin_lock+0x2e/0x40 [ 85.498846][ T6571] htab_lock_bucket+0x1a4/0x370 [ 85.504255][ T6571] htab_lru_map_delete_elem+0x1f1/0x700 [ 85.510331][ T6571] bpf_prog_6f5f05285f674219+0x43/0x4c [ 85.516313][ T6571] bpf_trace_run2+0x2ec/0x540 [ 85.521506][ T6571] __traceiter_contention_begin+0x7b/0xb0 [ 85.527743][ T6571] trace_contention_begin+0x117/0x140 [ 85.533638][ T6571] __pv_queued_spin_lock_slowpath+0x114/0xdb0 [ 85.540235][ T6571] queued_spin_lock_slowpath+0x42/0x50 [ 85.546225][ T6571] do_raw_spin_lock+0x272/0x370 [ 85.551613][ T6571] htab_lock_bucket+0x1a4/0x370 [ 85.556982][ T6571] htab_lru_map_delete_elem+0x1f1/0x700 [ 85.563055][ T6571] 0xffffffffa0003923 [ 85.567547][ T6571] bpf_trace_run2+0x2ec/0x540 [ 85.572757][ T6571] __traceiter_contention_begin+0x7b/0xb0 [ 85.578994][ T6571] trace_contention_begin+0xf5/0x120 [ 85.584803][ T6571] __mutex_lock+0x147/0xd70 [ 85.589828][ T6571] tracepoint_probe_unregister+0x32/0x990 [ 85.596067][ T6571] bpf_raw_tp_link_release+0x45/0x70 [ 85.601871][ T6571] bpf_link_free+0xf5/0x250 [ 85.606891][ T6571] bpf_link_release+0x78/0x90 [ 85.612085][ T6571] __fput+0x23f/0x880 [ 85.616587][ T6571] task_work_run+0x24f/0x310 [ 85.621692][ T6571] do_exit+0xa2f/0x28e0 [ 85.626364][ T6571] do_group_exit+0x207/0x2c0 [ 85.631470][ T6571] __x64_sys_exit_group+0x3f/0x40 [ 85.637009][ T6571] x64_sys_call+0x2634/0x2640 [ 85.642206][ T6571] do_syscall_64+0xf3/0x230 [ 85.647223][ T6571] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.653632][ T6571] [ 85.653632][ T6571] other info that might help us debug this: [ 85.653632][ T6571] [ 85.663858][ T6571] Possible unsafe locking scenario: [ 85.663858][ T6571] [ 85.671300][ T6571] CPU0 CPU1 [ 85.676659][ T6571] ---- ---- [ 85.682015][ T6571] lock(&htab->lockdep_key#5); [ 85.686876][ T6571] lock(&htab->lockdep_key#2); [ 85.694253][ T6571] lock(&htab->lockdep_key#5); [ 85.701631][ T6571] lock(&htab->lockdep_key#2); [ 85.706502][ T6571] [ 85.706502][ T6571] *** DEADLOCK *** [ 85.706502][ T6571] [ 85.714638][ T6571] 4 locks held by syz-executor494/6571: [ 85.720186][ T6571] #0: ffffffff8e98a548 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x32/0x990 [ 85.730990][ T6571] #1: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 85.740386][ T6571] #2: ffff88807bc5b1d0 (&htab->lockdep_key#5){....}-{2:2}, at: htab_lock_bucket+0x1a4/0x370 [ 85.750579][ T6571] #3: ffffffff8e937e20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 85.760006][ T6571] [ 85.760006][ T6571] stack backtrace: [ 85.765917][ T6571] CPU: 1 UID: 0 PID: 6571 Comm: syz-executor494 Not tainted 6.12.0-rc4-syzkaller-00168-ge31a8219fbfc #0 [ 85.777026][ T6571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 85.787095][ T6571] Call Trace: [ 85.790377][ T6571] [ 85.793306][ T6571] dump_stack_lvl+0x241/0x360 [ 85.797985][ T6571] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.803181][ T6571] ? __pfx__printk+0x10/0x10 [ 85.807770][ T6571] print_circular_bug+0x13a/0x1b0 [ 85.812797][ T6571] check_noncircular+0x36a/0x4a0 [ 85.817735][ T6571] ? __pfx_check_noncircular+0x10/0x10 [ 85.823194][ T6571] ? lockdep_lock+0x123/0x2b0 [ 85.827880][ T6571] ? rcu_is_watching+0x15/0xb0 [ 85.832645][ T6571] ? lock_release+0xbf/0xa30 [ 85.837241][ T6571] validate_chain+0x18ef/0x5920 [ 85.842091][ T6571] ? __pfx_lock_release+0x10/0x10 [ 85.847126][ T6571] ? rcu_is_watching+0x15/0xb0 [ 85.851889][ T6571] ? __pfx_validate_chain+0x10/0x10 [ 85.857089][ T6571] ? __pfx___cant_sleep+0x10/0x10 [ 85.862116][ T6571] ? prandom_u32_state+0x1e/0x180 [ 85.867155][ T6571] ? bpf_prog_inc_misses_counter+0x58/0xa0 [ 85.872960][ T6571] ? bpf_trace_run2+0x422/0x540 [ 85.877830][ T6571] ? __pfx_bpf_trace_run2+0x10/0x10 [ 85.883028][ T6571] ? mark_lock+0x9a/0x360 [ 85.887357][ T6571] __lock_acquire+0x1384/0x2050 [ 85.892233][ T6571] lock_acquire+0x1ed/0x550 [ 85.896748][ T6571] ? htab_lock_bucket+0x1a4/0x370 [ 85.901776][ T6571] ? __pfx_lock_acquire+0x10/0x10 [ 85.906812][ T6571] ? __pfx_validate_chain+0x10/0x10 [ 85.912020][ T6571] _raw_spin_lock+0x2e/0x40 [ 85.916537][ T6571] ? htab_lock_bucket+0x1a4/0x370 [ 85.921588][ T6571] htab_lock_bucket+0x1a4/0x370 [ 85.926457][ T6571] ? __pfx_htab_lock_bucket+0x10/0x10 [ 85.931845][ T6571] ? htab_map_hash+0x1cb/0x330 [ 85.936619][ T6571] htab_lru_map_delete_elem+0x1f1/0x700 [ 85.942184][ T6571] ? __pfx_lock_acquire+0x10/0x10 [ 85.947249][ T6571] ? __lock_acquire+0x1384/0x2050 [ 85.952290][ T6571] ? __pfx_htab_lru_map_delete_elem+0x10/0x10 [ 85.958372][ T6571] ? __pfx___cant_migrate+0x10/0x10 [ 85.963579][ T6571] ? __lock_acquire+0x1384/0x2050 [ 85.968620][ T6571] ? bpf_trace_run2+0x1fc/0x540 [ 85.973476][ T6571] bpf_prog_6f5f05285f674219+0x43/0x4c [ 85.978934][ T6571] bpf_trace_run2+0x2ec/0x540 [ 85.983620][ T6571] ? __pfx_bpf_trace_run2+0x10/0x10 [ 85.988825][ T6571] ? __pfx_validate_chain+0x10/0x10 [ 85.994036][ T6571] ? __pfx___bpf_trace_contention_begin+0x10/0x10 [ 86.000454][ T6571] __traceiter_contention_begin+0x7b/0xb0 [ 86.006187][ T6571] trace_contention_begin+0x117/0x140 [ 86.011568][ T6571] __pv_queued_spin_lock_slowpath+0x114/0xdb0 [ 86.017644][ T6571] ? __pfx___pv_queued_spin_lock_slowpath+0x10/0x10 [ 86.024253][ T6571] queued_spin_lock_slowpath+0x42/0x50 [ 86.029726][ T6571] do_raw_spin_lock+0x272/0x370 [ 86.034589][ T6571] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 86.039977][ T6571] htab_lock_bucket+0x1a4/0x370 [ 86.044839][ T6571] ? __pfx_htab_lock_bucket+0x10/0x10 [ 86.050213][ T6571] ? htab_map_hash+0x1cb/0x330 [ 86.054976][ T6571] htab_lru_map_delete_elem+0x1f1/0x700 [ 86.060534][ T6571] ? __pfx_lock_acquire+0x10/0x10 [ 86.065561][ T6571] ? __pfx_htab_lru_map_delete_elem+0x10/0x10 [ 86.071632][ T6571] ? __pfx___cant_migrate+0x10/0x10 [ 86.076840][ T6571] ? prandom_u32_state+0x1e/0x180 [ 86.081877][ T6571] ? bpf_trace_run2+0x1fc/0x540 [ 86.086727][ T6571] ? bpf_trace_run2+0x2ec/0x540 [ 86.091581][ T6571] ? __pfx_bpf_trace_run2+0x10/0x10 [ 86.096783][ T6571] ? __pfx___might_resched+0x10/0x10 [ 86.102075][ T6571] ? __lock_acquire+0x1384/0x2050 [ 86.107117][ T6571] ? __pfx___bpf_trace_contention_begin+0x10/0x10 [ 86.113541][ T6571] ? __traceiter_contention_begin+0x7b/0xb0 [ 86.119438][ T6571] ? trace_contention_begin+0xf5/0x120 [ 86.124909][ T6571] ? __mutex_lock+0x147/0xd70 [ 86.129599][ T6571] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 86.135592][ T6571] ? tracepoint_probe_unregister+0x32/0x990 [ 86.141492][ T6571] ? __pfx___mutex_lock+0x10/0x10 [ 86.146518][ T6571] ? __local_bh_enable_ip+0x168/0x200 [ 86.151903][ T6571] ? lockdep_hardirqs_on+0x99/0x150 [ 86.157096][ T6571] ? __local_bh_enable_ip+0x168/0x200 [ 86.162471][ T6571] ? tracepoint_probe_unregister+0x32/0x990 [ 86.168368][ T6571] ? bpf_link_free+0x8c/0x250 [ 86.173050][ T6571] ? __pfx___bpf_trace_contention_begin+0x10/0x10 [ 86.179462][ T6571] ? do_raw_spin_unlock+0x13c/0x8b0 [ 86.184678][ T6571] ? bpf_raw_tp_link_release+0x45/0x70 [ 86.190148][ T6571] ? bpf_link_free+0xf5/0x250 [ 86.194832][ T6571] ? bpf_link_release+0x78/0x90 [ 86.199695][ T6571] ? __pfx_bpf_link_release+0x10/0x10 [ 86.205069][ T6571] ? __fput+0x23f/0x880 [ 86.209234][ T6571] ? task_work_run+0x24f/0x310 [ 86.213999][ T6571] ? __pfx_task_work_run+0x10/0x10 [ 86.219111][ T6571] ? switch_task_namespaces+0xe4/0x110 [ 86.224580][ T6571] ? do_exit+0xa2f/0x28e0 [ 86.228911][ T6571] ? __pfx_do_exit+0x10/0x10 [ 86.233580][ T6571] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 86.239567][ T6571] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 86.245919][ T6571] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.251115][ T6571] ? lockdep_hardirqs_on+0x99/0x150 [ 86.256313][ T6571] ? do_group_exit+0x207/0x2c0 [ 86.261075][ T6571] ? __x64_sys_exit_group+0x3f/0x40 [ 86.266270][ T6571] ? x64_sys_call+0x2634/0x2640 [ 86.271126][ T6571] ? do_syscall_64+0xf3/0x230 [ 86.275806][ T6571] ? clear_bhb_loop+0x35/0x90 [pid 6572] <... write resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6573 [pid 6573] setpgid(0, 0 [pid 6572] close(3 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6573] <... setpgid resumed>) = 0 [pid 6572] <... close resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6572] write(1, "executing program\n", 18executing program ) = 18 [pid 6572] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6573] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6574 attached [pid 6573] write(3, "1000", 4 [pid 6572] <... bpf resumed>) = 3 [pid 6573] <... write resumed>) = 4 [pid 6573] close(3 [pid 6574] set_robust_list(0x55556540f660, 24 [pid 6573] <... close resumed>) = 0 executing program [pid 6573] write(1, "executing program\n", 18 [pid 6572] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6574] <... set_robust_list resumed>) = 0 [pid 6573] <... write resumed>) = 18 [pid 6574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6573] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6574 [pid 6574] <... prctl resumed>) = 0 [pid 6572] <... bpf resumed>) = 4 [pid 6571] +++ exited with 0 +++ [pid 6569] +++ exited with 0 +++ [pid 6574] setpgid(0, 0 [pid 6573] <... bpf resumed>) = 3 [pid 6572] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6574] <... setpgid resumed>) = 0 [pid 6574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6573] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6571, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6574] <... openat resumed>) = 3 [pid 6573] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6569, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6572] <... bpf resumed>) = 5 [pid 6572] exit_group(0./strace-static-x86_64: Process 6575 attached ) = ? executing program [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6574] write(3, "1000", 4) = 4 [pid 6574] close(3) = 0 [pid 6573] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6574] write(1, "executing program\n", 18 [pid 6573] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6575 [pid 6575] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6576 ./strace-static-x86_64: Process 6576 attached [pid 6574] <... write resumed>) = 18 [pid 6573] exit_group(0 [pid 6574] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6576] set_robust_list(0x55556540f660, 24 [pid 6575] <... set_robust_list resumed>) = 0 [pid 6574] <... bpf resumed>) = 3 [pid 6573] <... exit_group resumed>) = ? [pid 6576] <... set_robust_list resumed>) = 0 [pid 6575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6575] setpgid(0, 0) = 0 [pid 6574] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6575] <... openat resumed>) = 3 [pid 6574] <... bpf resumed>) = 4 [pid 6576] <... prctl resumed>) = 0 [pid 6574] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6576] setpgid(0, 0) = 0 [pid 6575] write(3, "1000", 4) = 4 [pid 6576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6575] close(3executing program ) = 0 [pid 6575] write(1, "executing program\n", 18) = 18 [ 86.280486][ T6571] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.286562][ T6571] [pid 6575] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6576] <... openat resumed>) = 3 [pid 6576] write(3, "1000", 4) = 4 [pid 6575] <... bpf resumed>) = 3 [pid 6575] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6576] close(3) = 0 [pid 6576] write(1, "executing program\n", 18executing program ) = 18 [pid 6575] <... bpf resumed>) = 4 [pid 6576] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6572] +++ exited with 0 +++ [pid 6576] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6573] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6575] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6573, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6576] <... bpf resumed>) = 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6576] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6577 attached ./strace-static-x86_64: Process 6578 attached [pid 6576] <... bpf resumed>) = 5 [pid 6575] <... bpf resumed>) = 5 [pid 6574] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6577 [pid 6577] set_robust_list(0x55556540f660, 24 [pid 6578] set_robust_list(0x55556540f660, 24 [pid 6574] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6578 [pid 6574] <... exit_group resumed>) = ? [pid 6578] <... set_robust_list resumed>) = 0 [pid 6577] <... set_robust_list resumed>) = 0 [pid 6577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6575] exit_group(0 [pid 6578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6577] <... prctl resumed>) = 0 [pid 6576] exit_group(0 [pid 6575] <... exit_group resumed>) = ? [pid 6578] <... prctl resumed>) = 0 [pid 6577] setpgid(0, 0 [pid 6576] <... exit_group resumed>) = ? [pid 6574] +++ exited with 0 +++ [pid 6577] <... setpgid resumed>) = 0 [pid 6578] setpgid(0, 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6578] <... setpgid resumed>) = 0 [pid 6577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6577] <... openat resumed>) = 3 [pid 6577] write(3, "1000", 4 [pid 6578] <... openat resumed>) = 3 [pid 6577] <... write resumed>) = 4 [pid 6578] write(3, "1000", 4 [pid 6577] close(3 [pid 6578] <... write resumed>) = 4 [pid 6577] <... close resumed>) = 0 [pid 6578] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6579 attached [pid 6578] <... close resumed>) = 0 executing program executing program [pid 6577] write(1, "executing program\n", 18 [pid 6578] write(1, "executing program\n", 18 [pid 6577] <... write resumed>) = 18 [pid 6579] set_robust_list(0x55556540f660, 24 [pid 6578] <... write resumed>) = 18 [pid 6579] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6579 [pid 6579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6578] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6577] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6576] +++ exited with 0 +++ [pid 6575] +++ exited with 0 +++ [pid 6579] <... prctl resumed>) = 0 [pid 6578] <... bpf resumed>) = 3 [pid 6579] setpgid(0, 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6577] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6575, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6578] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6579] <... setpgid resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6580 attached [pid 6577] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6578] <... bpf resumed>) = 4 [pid 6577] <... bpf resumed>) = 4 [pid 6580] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6580 [pid 6580] <... set_robust_list resumed>) = 0 [pid 6580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6580] setpgid(0, 0) = 0 [pid 6580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6580] <... openat resumed>) = 3 [pid 6579] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6581 attached [pid 6580] write(3, "1000", 4 [pid 6579] write(3, "1000", 4 [pid 6578] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6577] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6580] <... write resumed>) = 4 [pid 6581] set_robust_list(0x55556540f660, 24 [pid 6580] close(3 [pid 6579] <... write resumed>) = 4 [pid 6579] close(3 [pid 6578] <... bpf resumed>) = 5 [pid 6580] <... close resumed>) = 0 executing program [pid 6581] <... set_robust_list resumed>) = 0 [pid 6580] write(1, "executing program\n", 18 [pid 6579] <... close resumed>) = 0 [pid 6578] exit_group(0 [pid 6577] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6581 [pid 6581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6580] <... write resumed>) = 18 [pid 6579] write(1, "executing program\n", 18executing program [pid 6581] <... prctl resumed>) = 0 [pid 6580] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6579] <... write resumed>) = 18 [pid 6578] <... exit_group resumed>) = ? [pid 6577] exit_group(0 [pid 6581] setpgid(0, 0 [pid 6580] <... bpf resumed>) = 3 [pid 6580] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6581] <... setpgid resumed>) = 0 [pid 6580] <... bpf resumed>) = 4 [pid 6577] <... exit_group resumed>) = ? [pid 6580] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6579] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6579] <... bpf resumed>) = 3 [pid 6581] <... openat resumed>) = 3 [pid 6579] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6581] write(3, "1000", 4) = 4 [pid 6579] <... bpf resumed>) = 4 [pid 6581] close(3) = 0 executing program [pid 6581] write(1, "executing program\n", 18) = 18 [pid 6579] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6581] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6581] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6581] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6578] +++ exited with 0 +++ [pid 6580] <... bpf resumed>) = 5 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6580] exit_group(0) = ? [pid 5847] <... restart_syscall resumed>) = 0 [pid 6581] <... bpf resumed>) = 5 [pid 6579] <... bpf resumed>) = 5 [pid 6581] exit_group(0 [pid 6580] +++ exited with 0 +++ [pid 6577] +++ exited with 0 +++ [pid 6581] <... exit_group resumed>) = ? [pid 6579] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6579] <... exit_group resumed>) = ? [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6582 attached ./strace-static-x86_64: Process 6583 attached [pid 6583] set_robust_list(0x55556540f660, 24) = 0 [pid 6583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6582] set_robust_list(0x55556540f660, 24 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6583 [pid 6583] setpgid(0, 0 [pid 6582] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6582 [pid 6583] <... setpgid resumed>) = 0 [pid 6582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6582] <... prctl resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6583] <... openat resumed>) = 3 [pid 6583] write(3, "1000", 4./strace-static-x86_64: Process 6584 attached [pid 6582] setpgid(0, 0 [pid 6581] +++ exited with 0 +++ [pid 6579] +++ exited with 0 +++ [pid 6582] <... setpgid resumed>) = 0 [pid 6584] set_robust_list(0x55556540f660, 24 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6583] <... write resumed>) = 4 [pid 6582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6584 [pid 6584] <... set_robust_list resumed>) = 0 [pid 6583] close(3 [pid 6582] <... openat resumed>) = 3 [pid 6583] <... close resumed>) = 0 [pid 6583] write(1, "executing program\n", 18 [pid 6584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6583] <... write resumed>) = 18 [pid 6582] write(3, "1000", 4 [pid 6584] <... prctl resumed>) = 0 [pid 6583] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6582] <... write resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6585 attached [pid 6584] setpgid(0, 0 [pid 6583] <... bpf resumed>) = 3 [pid 6582] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6582] <... close resumed>) = 0 executing program executing program executing program [pid 6585] set_robust_list(0x55556540f660, 24 [pid 6584] <... setpgid resumed>) = 0 [pid 6582] write(1, "executing program\n", 18 [pid 6585] <... set_robust_list resumed>) = 0 [pid 6584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6582] <... write resumed>) = 18 [pid 6585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6582] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6585] <... prctl resumed>) = 0 [pid 6584] <... openat resumed>) = 3 [pid 6582] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6585 [pid 6585] setpgid(0, 0) = 0 [pid 6585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6582] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6585] <... openat resumed>) = 3 [pid 6584] write(3, "1000", 4 [pid 6582] <... bpf resumed>) = 4 [pid 6585] write(3, "1000", 4 [pid 6584] <... write resumed>) = 4 [pid 6584] close(3) = 0 [pid 6584] write(1, "executing program\n", 18) = 18 [pid 6585] <... write resumed>) = 4 [pid 6585] close(3 [pid 6584] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6585] <... close resumed>) = 0 [pid 6584] <... bpf resumed>) = 3 [pid 6582] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6585] write(1, "executing program\n", 18) = 18 [pid 6584] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6585] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6582] <... bpf resumed>) = 5 [pid 6585] <... bpf resumed>) = 3 [pid 6584] <... bpf resumed>) = 4 [pid 6582] exit_group(0 [pid 6583] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6585] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6582] <... exit_group resumed>) = ? [pid 6584] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6582] +++ exited with 0 +++ [pid 6585] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6587 attached [pid 6585] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6587] set_robust_list(0x55556540f660, 24) = 0 [pid 6587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6587] setpgid(0, 0) = 0 [pid 6587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6587 [pid 6587] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6586 attached [pid 6583] <... bpf resumed>) = 4 [pid 6583] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6587] write(3, "1000", 4 [pid 6586] set_robust_list(0x55556540f660, 24 [pid 6585] <... bpf resumed>) = 5 [pid 6584] <... bpf resumed>) = 5 [pid 6583] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6586 [pid 6587] <... write resumed>) = 4 [pid 6586] <... set_robust_list resumed>) = 0 [pid 6585] exit_group(0 [pid 6584] exit_group(0 [pid 6583] exit_group(0 [pid 6587] close(3 [pid 6586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6585] <... exit_group resumed>) = ? [pid 6584] <... exit_group resumed>) = ? [pid 6583] <... exit_group resumed>) = ? [pid 6587] <... close resumed>) = 0 [pid 6584] +++ exited with 0 +++ [pid 6586] <... prctl resumed>) = 0 executing program [pid 6587] write(1, "executing program\n", 18 [pid 6586] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6587] <... write resumed>) = 18 [pid 6586] <... setpgid resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6587] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6587] <... bpf resumed>) = 3 [pid 6586] <... openat resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6587] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6586] write(3, "1000", 4 [pid 6587] <... bpf resumed>) = 4 [pid 6586] <... write resumed>) = 4 executing program [pid 6586] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6586] <... close resumed>) = 0 [pid 6586] write(1, "executing program\n", 18 [pid 6587] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6586] <... write resumed>) = 18 [pid 6586] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6588 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6588 [pid 6588] set_robust_list(0x55556540f660, 24 [pid 6586] <... bpf resumed>) = 3 [pid 6588] <... set_robust_list resumed>) = 0 [pid 6586] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6586] <... bpf resumed>) = 4 [pid 6586] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6588] setpgid(0, 0 [pid 6585] +++ exited with 0 +++ [pid 6583] +++ exited with 0 +++ [pid 6588] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6589 attached [pid 6588] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6590 attached [pid 6589] set_robust_list(0x55556540f660, 24 [pid 6588] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6589 [pid 6590] set_robust_list(0x55556540f660, 24 [pid 6586] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6590 [pid 6590] <... set_robust_list resumed>) = 0 [pid 6589] <... set_robust_list resumed>) = 0 [pid 6588] <... write resumed>) = 4 [pid 6587] <... bpf resumed>) = 5 [pid 6586] exit_group(0 [pid 6590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6589] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6588] close(3 [pid 6587] exit_group(0 [pid 6586] <... exit_group resumed>) = ? [pid 6590] <... prctl resumed>) = 0 [pid 6590] setpgid(0, 0 [pid 6589] <... prctl resumed>) = 0 [pid 6588] <... close resumed>) = 0 [pid 6587] <... exit_group resumed>) = ? executing program [pid 6586] +++ exited with 0 +++ [pid 6590] <... setpgid resumed>) = 0 [pid 6589] setpgid(0, 0 [pid 6588] write(1, "executing program\n", 18 [pid 6587] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6589] <... setpgid resumed>) = 0 [pid 6588] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6588] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6589] <... openat resumed>) = 3 [pid 6588] <... bpf resumed>) = 3 [pid 6590] <... openat resumed>) = 3 [pid 6588] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6590] write(3, "1000", 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6590] <... write resumed>) = 4 [pid 6589] write(3, "1000", 4 [pid 6588] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6589] <... write resumed>) = 4 ./strace-static-x86_64: Process 6592 attached ./strace-static-x86_64: Process 6591 attached [pid 6590] close(3 [pid 6589] close(3) = 0 [pid 6588] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6590] <... close resumed>) = 0 executing program executing program [pid 6590] write(1, "executing program\n", 18 [pid 6589] write(1, "executing program\n", 18 [pid 6592] set_robust_list(0x55556540f660, 24 [pid 6591] set_robust_list(0x55556540f660, 24 [pid 6590] <... write resumed>) = 18 [pid 6589] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6591 [pid 6592] <... set_robust_list resumed>) = 0 [pid 6591] <... set_robust_list resumed>) = 0 [pid 6590] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6589] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6592 [pid 6592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6590] <... bpf resumed>) = 3 [pid 6589] <... bpf resumed>) = 3 [pid 6592] <... prctl resumed>) = 0 [pid 6589] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6592] setpgid(0, 0 [pid 6590] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6589] <... bpf resumed>) = 4 [pid 6592] <... setpgid resumed>) = 0 [pid 6591] <... prctl resumed>) = 0 [pid 6590] <... bpf resumed>) = 4 [pid 6588] <... bpf resumed>) = 5 [pid 6592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6591] setpgid(0, 0 [pid 6590] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6589] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6592] <... openat resumed>) = 3 [pid 6591] <... setpgid resumed>) = 0 [pid 6590] <... bpf resumed>) = 5 [pid 6589] <... bpf resumed>) = 5 [pid 6592] write(3, "1000", 4 [pid 6591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6590] exit_group(0 [pid 6589] exit_group(0 [pid 6588] exit_group(0 [pid 6592] <... write resumed>) = 4 [pid 6591] <... openat resumed>) = 3 [pid 6590] <... exit_group resumed>) = ? [pid 6589] <... exit_group resumed>) = ? [pid 6588] <... exit_group resumed>) = ? [pid 6592] close(3 [pid 6590] +++ exited with 0 +++ [pid 6589] +++ exited with 0 +++ [pid 6588] +++ exited with 0 +++ [pid 6592] <... close resumed>) = 0 [pid 6591] write(3, "1000", 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6592] write(1, "executing program\n", 18 [pid 6591] <... write resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6592] <... write resumed>) = 18 [pid 6591] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6592] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6591] <... close resumed>) = 0 [pid 6591] write(1, "executing program\n", 18 [pid 6592] <... bpf resumed>) = 3 [pid 6591] <... write resumed>) = 18 [pid 6592] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6591] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6591] <... bpf resumed>) = 3 [pid 6591] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6592] <... bpf resumed>) = 4 [pid 6591] <... bpf resumed>) = 4 [pid 6591] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6592] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6591] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6594 attached [pid 6591] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6595 attached ./strace-static-x86_64: Process 6593 attached [pid 6592] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6594 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6593 [pid 6595] set_robust_list(0x55556540f660, 24 [pid 6594] set_robust_list(0x55556540f660, 24 [pid 6593] set_robust_list(0x55556540f660, 24 [pid 6592] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6595 [pid 6595] <... set_robust_list resumed>) = 0 [pid 6594] <... set_robust_list resumed>) = 0 [pid 6593] <... set_robust_list resumed>) = 0 [pid 6595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6595] <... prctl resumed>) = 0 [pid 6595] setpgid(0, 0 [pid 6594] <... prctl resumed>) = 0 [pid 6593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6595] <... setpgid resumed>) = 0 [pid 6594] setpgid(0, 0 [pid 6595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6594] <... setpgid resumed>) = 0 [pid 6593] <... prctl resumed>) = 0 [pid 6595] <... openat resumed>) = 3 [pid 6594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6595] write(3, "1000", 4 [pid 6594] <... openat resumed>) = 3 [pid 6593] setpgid(0, 0 [pid 6595] <... write resumed>) = 4 [pid 6593] <... setpgid resumed>) = 0 [pid 6595] close(3) = 0 executing program [pid 6594] write(3, "1000", 4 [pid 6593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6595] write(1, "executing program\n", 18 [pid 6594] <... write resumed>) = 4 [pid 6595] <... write resumed>) = 18 [pid 6594] close(3 [pid 6593] <... openat resumed>) = 3 [pid 6595] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6594] <... close resumed>) = 0 [pid 6595] <... bpf resumed>) = 3 executing program [pid 6594] write(1, "executing program\n", 18 [pid 6593] write(3, "1000", 4 [pid 6595] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6594] <... write resumed>) = 18 [pid 6593] <... write resumed>) = 4 executing program [pid 6595] <... bpf resumed>) = 4 [pid 6594] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6593] close(3 [pid 6595] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6593] <... close resumed>) = 0 [pid 6593] write(1, "executing program\n", 18) = 18 [pid 6594] <... bpf resumed>) = 3 [pid 6593] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6591] +++ exited with 0 +++ [pid 6594] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6593] <... bpf resumed>) = 3 [pid 6592] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6594] <... bpf resumed>) = 4 [pid 6593] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6594] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6593] <... bpf resumed>) = 4 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6593] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6596 attached , child_tidptr=0x55556540f650) = 6596 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6597 attached [pid 6597] set_robust_list(0x55556540f660, 24) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6597 [pid 6597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6597] setpgid(0, 0) = 0 [pid 6597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6596] set_robust_list(0x55556540f660, 24) = 0 [pid 6595] <... bpf resumed>) = 5 [pid 6594] <... bpf resumed>) = 5 [pid 6593] <... bpf resumed>) = 5 [pid 6597] <... openat resumed>) = 3 [pid 6596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6595] exit_group(0 [pid 6594] exit_group(0 [pid 6593] exit_group(0 [pid 6596] <... prctl resumed>) = 0 [pid 6595] <... exit_group resumed>) = ? [pid 6593] <... exit_group resumed>) = ? [pid 6597] write(3, "1000", 4 [pid 6594] <... exit_group resumed>) = ? [pid 6596] setpgid(0, 0 [pid 6595] +++ exited with 0 +++ [pid 6596] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6596] write(3, "1000", 4) = 4 [pid 6596] close(3) = 0 [pid 6596] write(1, "executing program\n", 18executing program ) = 18 [pid 6596] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6596] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6597] <... write resumed>) = 4 [pid 6596] <... bpf resumed>) = 4 [pid 6597] close(3 [pid 6596] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6597] <... close resumed>) = 0 executing program [pid 6597] write(1, "executing program\n", 18) = 18 [pid 6597] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6597] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6597] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556540f650) = 6598 ./strace-static-x86_64: Process 6598 attached [pid 6598] set_robust_list(0x55556540f660, 24 [pid 6593] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6593, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6598] <... set_robust_list resumed>) = 0 [pid 6598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6594] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 6598] <... prctl resumed>) = 0 [pid 6598] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6594, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6598] <... setpgid resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6598] <... openat resumed>) = 3 [pid 6598] write(3, "1000", 4) = 4 [pid 6598] close(3) = 0 ./strace-static-x86_64: Process 6600 attached ./strace-static-x86_64: Process 6599 attached [pid 6598] write(1, "executing program\n", 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6599 executing program [pid 6600] set_robust_list(0x55556540f660, 24 [pid 6599] set_robust_list(0x55556540f660, 24 [pid 6598] <... write resumed>) = 18 [pid 6600] <... set_robust_list resumed>) = 0 [pid 6599] <... set_robust_list resumed>) = 0 [pid 6598] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6600 [pid 6599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6598] <... bpf resumed>) = 3 [pid 6600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6599] setpgid(0, 0 [pid 6598] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6597] <... bpf resumed>) = 5 [pid 6596] <... bpf resumed>) = 5 [pid 6600] <... prctl resumed>) = 0 [pid 6599] <... setpgid resumed>) = 0 [pid 6598] <... bpf resumed>) = 4 [pid 6597] exit_group(0) = ? [pid 6596] exit_group(0 [pid 6600] setpgid(0, 0 [pid 6599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6597] +++ exited with 0 +++ [pid 6596] <... exit_group resumed>) = ? [pid 6600] <... setpgid resumed>) = 0 [pid 6599] <... openat resumed>) = 3 [pid 6598] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6598] exit_group(0 [pid 6600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6599] write(3, "1000", 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6597, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6600] <... openat resumed>) = 3 [pid 6599] <... write resumed>) = 4 [pid 6598] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6600] write(3, "1000", 4 [pid 6599] close(3 [pid 6600] <... write resumed>) = 4 [pid 6600] close(3) = 0 [pid 6599] <... close resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 executing program [pid 6600] write(1, "executing program\n", 18 [pid 6599] write(1, "executing program\n", 18) = 18 executing program [pid 6599] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6601 attached [pid 6600] <... write resumed>) = 18 [pid 6599] <... bpf resumed>) = 3 [pid 6598] +++ exited with 0 +++ [pid 6596] +++ exited with 0 +++ [pid 6601] set_robust_list(0x55556540f660, 24 [pid 6600] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6599] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6601] <... set_robust_list resumed>) = 0 [pid 6600] <... bpf resumed>) = 3 [pid 6599] <... bpf resumed>) = 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6601 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6598, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6600] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6601] setpgid(0, 0 [pid 6599] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6601] <... setpgid resumed>) = 0 [pid 6600] <... bpf resumed>) = 4 [pid 6601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6600] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6601] <... openat resumed>) = 3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6601] write(3, "1000", 4) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6602 attached [pid 6601] close(3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6601] <... close resumed>) = 0 [pid 6602] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6602 ./strace-static-x86_64: Process 6603 attached executing program [pid 6602] <... set_robust_list resumed>) = 0 [pid 6601] write(1, "executing program\n", 18) = 18 [pid 6603] set_robust_list(0x55556540f660, 24 [pid 6602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6601] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6600] <... bpf resumed>) = 5 [pid 6599] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6603 [pid 6603] <... set_robust_list resumed>) = 0 [pid 6602] <... prctl resumed>) = 0 [pid 6600] exit_group(0 [pid 6603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6602] setpgid(0, 0 [pid 6601] <... bpf resumed>) = 3 [pid 6603] <... prctl resumed>) = 0 [pid 6602] <... setpgid resumed>) = 0 [pid 6601] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6600] <... exit_group resumed>) = ? [pid 6599] exit_group(0 [pid 6603] setpgid(0, 0 [pid 6602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6601] <... bpf resumed>) = 4 [pid 6600] +++ exited with 0 +++ [pid 6603] <... setpgid resumed>) = 0 [pid 6599] <... exit_group resumed>) = ? [pid 6603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6602] <... openat resumed>) = 3 [pid 6601] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6599] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6603] <... openat resumed>) = 3 [pid 6602] write(3, "1000", 4 [pid 6601] <... bpf resumed>) = 5 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6602] <... write resumed>) = 4 [pid 6603] write(3, "1000", 4 [pid 6602] close(3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6603] <... write resumed>) = 4 [pid 6602] <... close resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6603] close(3 [pid 6602] write(1, "executing program\n", 18executing program [pid 6603] <... close resumed>) = 0 [pid 6602] <... write resumed>) = 18 [pid 6601] exit_group(0 [pid 6603] write(1, "executing program\n", 18executing program [pid 6602] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6601] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6604 attached [pid 6603] <... write resumed>) = 18 [pid 6602] <... bpf resumed>) = 3 [pid 6603] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6604] set_robust_list(0x55556540f660, 24 [pid 6603] <... bpf resumed>) = 3 [pid 6602] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6601] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6604] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6605 attached [pid 6604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6603] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6602] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6604 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6604] <... prctl resumed>) = 0 [pid 6605] set_robust_list(0x55556540f660, 24 [pid 6604] setpgid(0, 0 [pid 6603] <... bpf resumed>) = 4 [pid 6605] <... set_robust_list resumed>) = 0 [pid 6604] <... setpgid resumed>) = 0 [pid 6605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6605] <... prctl resumed>) = 0 [pid 6604] <... openat resumed>) = 3 [pid 6603] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6602] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6605 [pid 6605] setpgid(0, 0 [pid 6604] write(3, "1000", 4) = 4 [pid 6604] close(3) = 0 ./strace-static-x86_64: Process 6606 attached [pid 6605] <... setpgid resumed>) = 0 [pid 6603] <... bpf resumed>) = 5 [pid 6602] <... bpf resumed>) = 5 [pid 6606] set_robust_list(0x55556540f660, 24 [pid 6605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6604] write(1, "executing program\n", 18 [pid 6603] exit_group(0 [pid 6602] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6606 executing program [pid 6606] <... set_robust_list resumed>) = 0 [pid 6605] <... openat resumed>) = 3 [pid 6604] <... write resumed>) = 18 [pid 6603] <... exit_group resumed>) = ? [pid 6602] <... exit_group resumed>) = ? [pid 6606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6604] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6605] write(3, "1000", 4 [pid 6604] <... bpf resumed>) = 3 [pid 6606] <... prctl resumed>) = 0 [pid 6605] <... write resumed>) = 4 [pid 6606] setpgid(0, 0 [pid 6605] close(3 [pid 6604] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6606] <... setpgid resumed>) = 0 [pid 6605] <... close resumed>) = 0 [pid 6604] <... bpf resumed>) = 4 [pid 6606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6605] write(1, "executing program\n", 18executing program [pid 6606] <... openat resumed>) = 3 [pid 6605] <... write resumed>) = 18 [pid 6605] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6606] write(3, "1000", 4 [pid 6605] <... bpf resumed>) = 3 [pid 6604] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6606] <... write resumed>) = 4 [pid 6605] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6606] close(3) = 0 executing program [pid 6606] write(1, "executing program\n", 18 [pid 6605] <... bpf resumed>) = 4 [pid 6606] <... write resumed>) = 18 [pid 6606] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6605] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6606] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6606] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6603] +++ exited with 0 +++ [pid 6602] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6608 attached [pid 6606] <... bpf resumed>) = 5 [pid 6605] <... bpf resumed>) = 5 [pid 6604] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6608 [pid 6606] exit_group(0 [pid 6604] exit_group(0 [pid 6606] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6609 attached [pid 6608] set_robust_list(0x55556540f660, 24 [pid 6606] +++ exited with 0 +++ [pid 6605] exit_group(0 [pid 6604] <... exit_group resumed>) = ? [pid 6608] <... set_robust_list resumed>) = 0 [pid 6609] set_robust_list(0x55556540f660, 24 [pid 6608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6605] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6609 [pid 6608] <... prctl resumed>) = 0 [pid 6609] <... set_robust_list resumed>) = 0 [pid 6609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6609] setpgid(0, 0) = 0 [pid 6609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6608] setpgid(0, 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6609] write(3, "1000", 4 [pid 6608] <... setpgid resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6609] <... write resumed>) = 4 [pid 6608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6609] close(3executing program ) = 0 [pid 6609] write(1, "executing program\n", 18 [pid 6608] <... openat resumed>) = 3 [pid 6609] <... write resumed>) = 18 [pid 6609] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6610 attached ) = 3 [pid 6608] write(3, "1000", 4) = 4 [pid 6609] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6608] close(3 [pid 6610] set_robust_list(0x55556540f660, 24 [pid 6609] <... bpf resumed>) = 4 [pid 6608] <... close resumed>) = 0 [pid 6608] write(1, "executing program\n", 18executing program ) = 18 [ 86.854869][ T46] cfg80211: failed to load regulatory.db [pid 6608] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6610] <... set_robust_list resumed>) = 0 [pid 6609] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6608] <... bpf resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6610 [pid 6610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6610] setpgid(0, 0 [pid 6608] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6610] <... setpgid resumed>) = 0 [pid 6610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6608] <... bpf resumed>) = 4 [pid 6605] +++ exited with 0 +++ [pid 6604] +++ exited with 0 +++ [pid 6610] <... openat resumed>) = 3 [pid 6608] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6610] write(3, "1000", 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6610] <... write resumed>) = 4 [pid 6610] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6610] <... close resumed>) = 0 ./strace-static-x86_64: Process 6611 attached [pid 6610] write(1, "executing program\n", 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6610] <... write resumed>) = 18 ./strace-static-x86_64: Process 6612 attached [pid 6611] set_robust_list(0x55556540f660, 24 [pid 6610] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6612] set_robust_list(0x55556540f660, 24 [pid 6611] <... set_robust_list resumed>) = 0 [pid 6612] <... set_robust_list resumed>) = 0 [pid 6611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6610] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6611 [pid 6612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6611] <... prctl resumed>) = 0 [pid 6610] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6612 [pid 6612] <... prctl resumed>) = 0 [pid 6611] setpgid(0, 0 [pid 6610] <... bpf resumed>) = 4 [pid 6611] <... setpgid resumed>) = 0 [pid 6610] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6612] setpgid(0, 0 [pid 6611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6609] <... bpf resumed>) = 5 [pid 6608] <... bpf resumed>) = 5 [pid 6612] <... setpgid resumed>) = 0 [pid 6610] <... bpf resumed>) = 5 [pid 6608] exit_group(0 [pid 6610] exit_group(0 [pid 6609] exit_group(0 [pid 6612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6610] <... exit_group resumed>) = ? [pid 6612] <... openat resumed>) = 3 [pid 6611] <... openat resumed>) = 3 [pid 6610] +++ exited with 0 +++ [pid 6609] <... exit_group resumed>) = ? [pid 6608] <... exit_group resumed>) = ? [pid 6612] write(3, "1000", 4 [pid 6611] write(3, "1000", 4 [pid 6612] <... write resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6612] close(3 [pid 6611] <... write resumed>) = 4 [pid 6609] +++ exited with 0 +++ [pid 6608] +++ exited with 0 +++ [pid 6612] <... close resumed>) = 0 [pid 6611] close(3executing program [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6612] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6612] <... write resumed>) = 18 [pid 6611] <... close resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6611] write(1, "executing program\n", 18 [pid 5842] <... restart_syscall resumed>) = 0 executing program [pid 6612] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6611] <... write resumed>) = 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6611] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6612] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6611] <... bpf resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6613 attached [pid 6612] <... bpf resumed>) = 4 [pid 6613] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 6614 attached [pid 6613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6612] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6611] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6613 [pid 6614] set_robust_list(0x55556540f660, 24 [pid 6613] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6615 attached [pid 6614] <... set_robust_list resumed>) = 0 [pid 6613] setpgid(0, 0 [pid 6611] <... bpf resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6614 [pid 6615] set_robust_list(0x55556540f660, 24 [pid 6612] <... bpf resumed>) = 5 [pid 6614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6613] <... setpgid resumed>) = 0 [pid 6615] <... set_robust_list resumed>) = 0 [pid 6615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6614] <... prctl resumed>) = 0 [pid 6615] <... prctl resumed>) = 0 [pid 6611] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6615] setpgid(0, 0 [pid 6614] setpgid(0, 0 [pid 6613] <... openat resumed>) = 3 [pid 6612] exit_group(0 [pid 6611] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6615 [pid 6615] <... setpgid resumed>) = 0 [pid 6614] <... setpgid resumed>) = 0 [pid 6613] write(3, "1000", 4 [pid 6612] <... exit_group resumed>) = ? [pid 6611] exit_group(0 [pid 6615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6613] <... write resumed>) = 4 [pid 6612] +++ exited with 0 +++ [pid 6611] <... exit_group resumed>) = ? [pid 6615] write(3, "1000", 4 [pid 6614] <... openat resumed>) = 3 [pid 6613] close(3 [pid 6611] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6615] <... write resumed>) = 4 [pid 6613] <... close resumed>) = 0 [pid 6615] close(3executing program [pid 6614] write(3, "1000", 4 [pid 6613] write(1, "executing program\n", 18 [pid 6615] <... close resumed>) = 0 [pid 6614] <... write resumed>) = 4 [pid 6613] <... write resumed>) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6615] write(1, "executing program\n", 18 [pid 6614] close(3 [pid 6613] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6615] <... write resumed>) = 18 [pid 6614] <... close resumed>) = 0 [pid 6615] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6613] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6616 attached [pid 6615] <... bpf resumed>) = 3 [pid 6614] write(1, "executing program\n", 18 [pid 6613] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6614] <... write resumed>) = 18 ./strace-static-x86_64: Process 6617 attached [pid 6616] set_robust_list(0x55556540f660, 24 [pid 6615] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6614] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6613] <... bpf resumed>) = 4 [pid 6617] set_robust_list(0x55556540f660, 24 [pid 6616] <... set_robust_list resumed>) = 0 [pid 6615] <... bpf resumed>) = 4 [pid 6614] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6616 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6617 [pid 6617] <... set_robust_list resumed>) = 0 [pid 6617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6614] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6617] <... prctl resumed>) = 0 [pid 6616] <... prctl resumed>) = 0 [pid 6617] setpgid(0, 0 [pid 6616] setpgid(0, 0 [pid 6615] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6614] <... bpf resumed>) = 4 [pid 6613] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6617] <... setpgid resumed>) = 0 [pid 6616] <... setpgid resumed>) = 0 [pid 6614] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6615] <... bpf resumed>) = 5 [pid 6614] <... bpf resumed>) = 5 [pid 6613] <... bpf resumed>) = 5 [pid 6617] <... openat resumed>) = 3 [pid 6617] write(3, "1000", 4 [pid 6616] <... openat resumed>) = 3 [pid 6615] exit_group(0 [pid 6614] exit_group(0 [pid 6613] exit_group(0 [pid 6617] <... write resumed>) = 4 [pid 6616] write(3, "1000", 4 [pid 6617] close(3 [pid 6616] <... write resumed>) = 4 [pid 6617] <... close resumed>) = 0 [pid 6616] close(3executing program [pid 6617] write(1, "executing program\n", 18 [pid 6616] <... close resumed>) = 0 [pid 6617] <... write resumed>) = 18 [pid 6615] <... exit_group resumed>) = ? [pid 6614] <... exit_group resumed>) = ? [pid 6613] <... exit_group resumed>) = ? executing program [pid 6617] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6616] write(1, "executing program\n", 18 [pid 6615] +++ exited with 0 +++ [pid 6617] <... bpf resumed>) = 3 [pid 6616] <... write resumed>) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6616] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6617] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6616] <... bpf resumed>) = 3 [pid 6617] <... bpf resumed>) = 4 [pid 6616] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6617] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6616] <... bpf resumed>) = 4 [pid 6616] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6618 attached [pid 6618] set_robust_list(0x55556540f660, 24 [pid 6614] +++ exited with 0 +++ [pid 6613] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6618 [pid 6618] <... set_robust_list resumed>) = 0 [pid 6618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6618] setpgid(0, 0) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6618] <... openat resumed>) = 3 [pid 6618] write(3, "1000", 4./strace-static-x86_64: Process 6620 attached ./strace-static-x86_64: Process 6619 attached [pid 6617] <... bpf resumed>) = 5 [pid 6616] <... bpf resumed>) = 5 [pid 6620] set_robust_list(0x55556540f660, 24 [pid 6619] set_robust_list(0x55556540f660, 24 [pid 6618] <... write resumed>) = 4 [pid 6617] exit_group(0 [pid 6620] <... set_robust_list resumed>) = 0 [pid 6619] <... set_robust_list resumed>) = 0 [pid 6618] close(3 [pid 6616] exit_group(0 [pid 6620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6618] <... close resumed>) = 0 [pid 6617] <... exit_group resumed>) = ? executing program [pid 6620] <... prctl resumed>) = 0 [pid 6616] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6620 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6619 [pid 6620] setpgid(0, 0 [pid 6618] write(1, "executing program\n", 18 [pid 6620] <... setpgid resumed>) = 0 [pid 6619] <... prctl resumed>) = 0 [pid 6618] <... write resumed>) = 18 [pid 6620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6619] setpgid(0, 0) = 0 [pid 6619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6618] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6620] <... openat resumed>) = 3 [pid 6619] <... openat resumed>) = 3 [pid 6619] write(3, "1000", 4 [pid 6620] write(3, "1000", 4 [pid 6618] <... bpf resumed>) = 3 [pid 6620] <... write resumed>) = 4 executing program [pid 6618] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6620] close(3 [pid 6619] <... write resumed>) = 4 [pid 6619] close(3) = 0 [pid 6619] write(1, "executing program\n", 18) = 18 [pid 6618] <... bpf resumed>) = 4 [pid 6619] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6620] <... close resumed>) = 0 [pid 6619] <... bpf resumed>) = 3 [pid 6618] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6620] write(1, "executing program\n", 18 [pid 6619] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6620] <... write resumed>) = 18 [pid 6619] <... bpf resumed>) = 4 [pid 6619] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6620] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6617] +++ exited with 0 +++ [pid 6616] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6620] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6620] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6621 attached [pid 6621] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6622 attached [pid 6620] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6619] <... bpf resumed>) = 5 [pid 6618] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6621 [pid 6620] <... bpf resumed>) = 5 [pid 6618] exit_group(0 [pid 6622] set_robust_list(0x55556540f660, 24 [pid 6621] <... set_robust_list resumed>) = 0 [pid 6620] exit_group(0 [pid 6619] exit_group(0 [pid 6618] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6622 [pid 6622] <... set_robust_list resumed>) = 0 [pid 6621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6620] <... exit_group resumed>) = ? [pid 6619] <... exit_group resumed>) = ? [pid 6618] +++ exited with 0 +++ [pid 6622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6621] <... prctl resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6621] setpgid(0, 0 [pid 6622] <... prctl resumed>) = 0 [pid 6621] <... setpgid resumed>) = 0 [pid 6622] setpgid(0, 0) = 0 [pid 6621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6621] <... openat resumed>) = 3 [pid 6622] <... openat resumed>) = 3 [pid 6621] write(3, "1000", 4 [pid 6622] write(3, "1000", 4 [pid 6621] <... write resumed>) = 4 [pid 6621] close(3) = 0 [pid 6622] <... write resumed>) = 4 [pid 6622] close(3 executing program [pid 6621] write(1, "executing program\n", 18 [pid 6622] <... close resumed>) = 0 executing program [pid 6621] <... write resumed>) = 18 [pid 6622] write(1, "executing program\n", 18 [pid 6621] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6622] <... write resumed>) = 18 [pid 6621] <... bpf resumed>) = 3 [pid 6622] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6621] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6622] <... bpf resumed>) = 3 [pid 6621] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6622] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6620] +++ exited with 0 +++ [pid 6619] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6622] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6623 attached [pid 6622] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6621] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6623] set_robust_list(0x55556540f660, 24 [pid 6622] <... bpf resumed>) = 5 [pid 6621] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6624 attached [pid 6623] <... set_robust_list resumed>) = 0 [pid 6624] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6623 [pid 6624] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6625 attached [pid 6624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6624 [pid 6623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6621] <... exit_group resumed>) = ? [pid 6624] <... prctl resumed>) = 0 [pid 6622] exit_group(0 [pid 6624] setpgid(0, 0) = 0 [pid 6624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6623] <... prctl resumed>) = 0 [pid 6625] set_robust_list(0x55556540f660, 24 [pid 6624] <... openat resumed>) = 3 [pid 6623] setpgid(0, 0 [pid 6622] <... exit_group resumed>) = ? [pid 6624] write(3, "1000", 4) = 4 [pid 6624] close(3) = 0 executing program [pid 6625] <... set_robust_list resumed>) = 0 [pid 6624] write(1, "executing program\n", 18 [pid 6623] <... setpgid resumed>) = 0 [pid 6622] +++ exited with 0 +++ [pid 6621] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6625 [pid 6624] <... write resumed>) = 18 [pid 6624] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6622, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6624] <... bpf resumed>) = 3 [pid 6623] <... openat resumed>) = 3 [pid 6625] setpgid(0, 0 [pid 6624] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6625] <... setpgid resumed>) = 0 [pid 6623] write(3, "1000", 4) = 4 [pid 6625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6623] close(3) = 0 ./strace-static-x86_64: Process 6627 attached [pid 6625] <... openat resumed>) = 3 [pid 6623] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 6626 attached [pid 6627] set_robust_list(0x55556540f660, 24 [pid 6625] write(3, "1000", 4 [pid 6624] <... bpf resumed>) = 4 [pid 6623] <... write resumed>) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6626 [pid 6627] <... set_robust_list resumed>) = 0 [pid 6625] <... write resumed>) = 4 [pid 6624] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6625] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6627 [pid 6627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6626] set_robust_list(0x55556540f660, 24 [pid 6625] <... close resumed>) = 0 [pid 6623] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6626] <... set_robust_list resumed>) = 0 [pid 6623] <... bpf resumed>) = 3 [pid 6626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6623] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6627] <... prctl resumed>) = 0 [pid 6626] <... prctl resumed>) = 0 executing program [pid 6625] write(1, "executing program\n", 18 [pid 6623] <... bpf resumed>) = 4 [pid 6627] setpgid(0, 0 [pid 6626] setpgid(0, 0 [pid 6625] <... write resumed>) = 18 [pid 6627] <... setpgid resumed>) = 0 [pid 6626] <... setpgid resumed>) = 0 [pid 6627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6623] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6625] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6627] <... openat resumed>) = 3 [pid 6627] write(3, "1000", 4 [pid 6626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6625] <... bpf resumed>) = 3 [pid 6627] <... write resumed>) = 4 [pid 6626] <... openat resumed>) = 3 [pid 6626] write(3, "1000", 4 [pid 6625] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6627] close(3 [pid 6626] <... write resumed>) = 4 [pid 6627] <... close resumed>) = 0 [pid 6626] close(3 [pid 6627] write(1, "executing program\n", 18 [pid 6626] <... close resumed>) = 0 executing program [pid 6626] write(1, "executing program\n", 18) = 18 executing program [pid 6626] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6627] <... write resumed>) = 18 [pid 6626] <... bpf resumed>) = 3 [pid 6625] <... bpf resumed>) = 4 [pid 6627] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6625] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6627] <... bpf resumed>) = 3 [pid 6626] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6627] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6626] <... bpf resumed>) = 4 [pid 6626] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6627] <... bpf resumed>) = 4 [pid 6627] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6624] <... bpf resumed>) = 5 [pid 6624] exit_group(0) = ? [pid 6623] <... bpf resumed>) = 5 [pid 6627] <... bpf resumed>) = 5 [pid 6626] <... bpf resumed>) = 5 [pid 6625] <... bpf resumed>) = 5 [pid 6624] +++ exited with 0 +++ [pid 6627] exit_group(0 [pid 6626] exit_group(0 [pid 6625] exit_group(0 [pid 6623] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6627] <... exit_group resumed>) = ? [pid 6626] <... exit_group resumed>) = ? [pid 6625] <... exit_group resumed>) = ? [pid 6623] <... exit_group resumed>) = ? [pid 6627] +++ exited with 0 +++ [pid 6626] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6628 attached [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6625] +++ exited with 0 +++ [pid 6623] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6627, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6628] set_robust_list(0x55556540f660, 24 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6628 [pid 6628] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6623, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6628] <... prctl resumed>) = 0 [pid 6628] setpgid(0, 0) = 0 [pid 6628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6629 attached [pid 6628] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6630 attached ./strace-static-x86_64: Process 6631 attached executing program [pid 6629] set_robust_list(0x55556540f660, 24 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6629] <... set_robust_list resumed>) = 0 [pid 6628] write(3, "1000", 4) = 4 [pid 6628] close(3) = 0 [pid 6628] write(1, "executing program\n", 18) = 18 [pid 6628] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6632 attached [pid 6631] set_robust_list(0x55556540f660, 24 [pid 6630] set_robust_list(0x55556540f660, 24 [pid 6629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6628] <... bpf resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6631 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6630 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6629 [pid 6632] set_robust_list(0x55556540f660, 24 [pid 6631] <... set_robust_list resumed>) = 0 [pid 6630] <... set_robust_list resumed>) = 0 [pid 6629] <... prctl resumed>) = 0 [pid 6628] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6632 [pid 6632] <... set_robust_list resumed>) = 0 [pid 6631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6629] setpgid(0, 0 [pid 6628] <... bpf resumed>) = 4 [pid 6630] <... prctl resumed>) = 0 [pid 6629] <... setpgid resumed>) = 0 [pid 6628] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6631] <... prctl resumed>) = 0 [pid 6630] setpgid(0, 0 [pid 6629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6630] <... setpgid resumed>) = 0 [pid 6632] <... prctl resumed>) = 0 [pid 6630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6628] <... bpf resumed>) = 5 [pid 6632] setpgid(0, 0 [pid 6631] setpgid(0, 0 [pid 6629] <... openat resumed>) = 3 [pid 6631] <... setpgid resumed>) = 0 [pid 6630] <... openat resumed>) = 3 [pid 6629] write(3, "1000", 4 [pid 6632] <... setpgid resumed>) = 0 [pid 6631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6630] write(3, "1000", 4 [pid 6628] exit_group(0 [pid 6629] <... write resumed>) = 4 [pid 6632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6630] <... write resumed>) = 4 [pid 6629] close(3 [pid 6628] <... exit_group resumed>) = ? [pid 6632] <... openat resumed>) = 3 [pid 6631] <... openat resumed>) = 3 [pid 6630] close(3 [pid 6629] <... close resumed>) = 0 [pid 6628] +++ exited with 0 +++ [pid 6632] write(3, "1000", 4 [pid 6631] write(3, "1000", 4 [pid 6630] <... close resumed>) = 0 [pid 6629] write(1, "executing program\n", 18executing program [pid 6632] <... write resumed>) = 4 [pid 6631] <... write resumed>) = 4 executing program [pid 6630] write(1, "executing program\n", 18 [pid 6629] <... write resumed>) = 18 [pid 6632] close(3 [pid 6631] close(3 [pid 6630] <... write resumed>) = 18 [pid 6629] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6632] <... close resumed>) = 0 [pid 6631] <... close resumed>) = 0 [pid 6630] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program executing program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6632] write(1, "executing program\n", 18 [pid 6631] write(1, "executing program\n", 18 [pid 6630] <... bpf resumed>) = 3 [pid 6629] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6633 attached [pid 6632] <... write resumed>) = 18 [pid 6631] <... write resumed>) = 18 [pid 6630] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6629] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6633] set_robust_list(0x55556540f660, 24 [pid 6632] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6631] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6630] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6633 [pid 6633] <... set_robust_list resumed>) = 0 [pid 6632] <... bpf resumed>) = 3 [pid 6629] <... bpf resumed>) = 4 [pid 6633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6632] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6631] <... bpf resumed>) = 3 [pid 6630] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6629] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6633] <... prctl resumed>) = 0 [pid 6633] setpgid(0, 0 [pid 6632] <... bpf resumed>) = 4 [pid 6631] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6633] <... setpgid resumed>) = 0 [pid 6632] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6631] <... bpf resumed>) = 4 [pid 6633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6630] <... bpf resumed>) = 5 [pid 6633] <... openat resumed>) = 3 [pid 6629] <... bpf resumed>) = 5 [pid 6632] <... bpf resumed>) = 5 [pid 6630] exit_group(0 [pid 6633] write(3, "1000", 4 [pid 6631] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6630] <... exit_group resumed>) = ? [pid 6633] <... write resumed>) = 4 [pid 6629] exit_group(0 [pid 6632] exit_group(0) = ? [pid 6633] close(3 [pid 6632] +++ exited with 0 +++ [pid 6631] <... bpf resumed>) = 5 [pid 6630] +++ exited with 0 +++ [pid 6629] <... exit_group resumed>) = ? [pid 6631] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6633] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6631] <... exit_group resumed>) = ? [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6633] write(1, "executing program\n", 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6633] <... write resumed>) = 18 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6633] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6633] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6634 attached ./strace-static-x86_64: Process 6635 attached [pid 6633] <... bpf resumed>) = 4 [pid 6633] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6635] set_robust_list(0x55556540f660, 24 [pid 6634] set_robust_list(0x55556540f660, 24 [pid 6631] +++ exited with 0 +++ [pid 6629] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6634 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6635 [pid 6635] <... set_robust_list resumed>) = 0 [pid 6634] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6629, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6635] <... prctl resumed>) = 0 [pid 6635] setpgid(0, 0 [pid 6634] <... prctl resumed>) = 0 [pid 6635] <... setpgid resumed>) = 0 [pid 6634] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6634] <... setpgid resumed>) = 0 [pid 6635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 6637 attached ./strace-static-x86_64: Process 6636 attached [pid 6635] <... openat resumed>) = 3 [pid 6635] write(3, "1000", 4 [pid 6636] set_robust_list(0x55556540f660, 24 [pid 6635] <... write resumed>) = 4 [pid 6637] set_robust_list(0x55556540f660, 24 [pid 6635] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6636 [pid 6637] <... set_robust_list resumed>) = 0 [pid 6636] <... set_robust_list resumed>) = 0 [pid 6636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6635] <... close resumed>) = 0 [pid 6637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6634] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6637 [pid 6637] <... prctl resumed>) = 0 [pid 6636] <... prctl resumed>) = 0 [pid 6635] write(1, "executing program\n", 18 [pid 6634] <... write resumed>) = 4 executing program [pid 6637] setpgid(0, 0 [pid 6636] setpgid(0, 0 [pid 6635] <... write resumed>) = 18 [pid 6634] close(3 [pid 6633] <... bpf resumed>) = 5 [pid 6637] <... setpgid resumed>) = 0 [pid 6636] <... setpgid resumed>) = 0 [pid 6635] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6634] <... close resumed>) = 0 executing program [pid 6637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6635] <... bpf resumed>) = 3 [pid 6634] write(1, "executing program\n", 18 [pid 6633] exit_group(0 [pid 6637] <... openat resumed>) = 3 [pid 6636] <... openat resumed>) = 3 [pid 6635] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6634] <... write resumed>) = 18 [pid 6637] write(3, "1000", 4 [pid 6636] write(3, "1000", 4 [pid 6634] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6633] <... exit_group resumed>) = ? [pid 6637] <... write resumed>) = 4 [pid 6636] <... write resumed>) = 4 [pid 6635] <... bpf resumed>) = 4 [pid 6634] <... bpf resumed>) = 3 executing program executing program [pid 6633] +++ exited with 0 +++ [pid 6637] close(3 [pid 6636] close(3 [pid 6635] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6634] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6637] <... close resumed>) = 0 [pid 6636] <... close resumed>) = 0 [pid 6637] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6633, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6636] write(1, "executing program\n", 18 [pid 6637] <... write resumed>) = 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6636] <... write resumed>) = 18 [pid 6637] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6636] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6634] <... bpf resumed>) = 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6637] <... bpf resumed>) = 3 [pid 6634] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6637] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6636] <... bpf resumed>) = 3 [pid 6636] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6637] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6638 attached [pid 6637] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6636] <... bpf resumed>) = 4 [pid 6636] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6638 [pid 6638] set_robust_list(0x55556540f660, 24 [pid 6637] <... bpf resumed>) = 5 [pid 6635] <... bpf resumed>) = 5 [pid 6634] <... bpf resumed>) = 5 [pid 6638] <... set_robust_list resumed>) = 0 [pid 6637] exit_group(0 [pid 6636] <... bpf resumed>) = 5 [pid 6635] exit_group(0 [pid 6634] exit_group(0 [pid 6638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6637] <... exit_group resumed>) = ? [pid 6636] exit_group(0 [pid 6635] <... exit_group resumed>) = ? [pid 6638] <... prctl resumed>) = 0 [pid 6636] <... exit_group resumed>) = ? [pid 6634] <... exit_group resumed>) = ? [pid 6638] setpgid(0, 0 [pid 6637] +++ exited with 0 +++ [pid 6636] +++ exited with 0 +++ [pid 6634] +++ exited with 0 +++ [pid 6638] <... setpgid resumed>) = 0 [pid 6638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6638] <... openat resumed>) = 3 [pid 6635] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6638] write(3, "1000", 4) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6638] close(3) = 0 executing program [pid 6638] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6638] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6639 attached [pid 6638] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6640 attached [pid 6639] set_robust_list(0x55556540f660, 24 [pid 6638] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6639 ./strace-static-x86_64: Process 6642 attached ./strace-static-x86_64: Process 6641 attached [pid 6640] set_robust_list(0x55556540f660, 24 [pid 6639] <... set_robust_list resumed>) = 0 [pid 6638] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6641] set_robust_list(0x55556540f660, 24 [pid 6639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6640 [pid 6641] <... set_robust_list resumed>) = 0 [pid 6639] <... prctl resumed>) = 0 [pid 6642] set_robust_list(0x55556540f660, 24 [pid 6641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6640] <... set_robust_list resumed>) = 0 [pid 6639] setpgid(0, 0 [pid 6638] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6642 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6641 [pid 6642] <... set_robust_list resumed>) = 0 [pid 6641] <... prctl resumed>) = 0 [pid 6640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6638] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6639] <... setpgid resumed>) = 0 [pid 6642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6641] setpgid(0, 0 [pid 6640] <... prctl resumed>) = 0 [pid 6642] <... prctl resumed>) = 0 [pid 6641] <... setpgid resumed>) = 0 [pid 6640] setpgid(0, 0 [pid 6639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6638] <... bpf resumed>) = 5 [pid 6642] setpgid(0, 0 [pid 6640] <... setpgid resumed>) = 0 [pid 6641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6639] <... openat resumed>) = 3 [pid 6642] <... setpgid resumed>) = 0 [pid 6641] <... openat resumed>) = 3 [pid 6639] write(3, "1000", 4 [pid 6642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6641] write(3, "1000", 4 [pid 6640] <... openat resumed>) = 3 [pid 6639] <... write resumed>) = 4 [pid 6638] exit_group(0 [pid 6642] <... openat resumed>) = 3 [pid 6639] close(3 [pid 6641] <... write resumed>) = 4 [pid 6639] <... close resumed>) = 0 [pid 6641] close(3executing program [pid 6639] write(1, "executing program\n", 18 [pid 6641] <... close resumed>) = 0 [pid 6639] <... write resumed>) = 18 [pid 6641] write(1, "executing program\n", 18 [pid 6642] write(3, "1000", 4 [pid 6640] write(3, "1000", 4 [pid 6638] <... exit_group resumed>) = ? executing program [pid 6642] <... write resumed>) = 4 [pid 6641] <... write resumed>) = 18 [pid 6640] <... write resumed>) = 4 [pid 6639] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6638] +++ exited with 0 +++ [pid 6642] close(3 [pid 6641] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6640] close(3 [pid 6639] <... bpf resumed>) = 3 [pid 6642] <... close resumed>) = 0 [pid 6641] <... bpf resumed>) = 3 [pid 6640] <... close resumed>) = 0 [pid 6642] write(1, "executing program\n", 18executing program executing program [pid 6641] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6640] write(1, "executing program\n", 18 [pid 6639] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6638, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6642] <... write resumed>) = 18 [pid 6640] <... write resumed>) = 18 [pid 6642] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6641] <... bpf resumed>) = 4 [pid 6640] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6642] <... bpf resumed>) = 3 [pid 6641] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6639] <... bpf resumed>) = 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6642] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6640] <... bpf resumed>) = 3 [pid 6639] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6642] <... bpf resumed>) = 4 [pid 6640] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6640] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6643 attached [pid 6642] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6641] <... bpf resumed>) = 5 [pid 6639] <... bpf resumed>) = 5 [pid 6643] set_robust_list(0x55556540f660, 24 [pid 6642] <... bpf resumed>) = 5 [pid 6640] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6641] exit_group(0 [pid 6643] <... set_robust_list resumed>) = 0 [pid 6642] exit_group(0 [pid 6641] <... exit_group resumed>) = ? [pid 6640] <... bpf resumed>) = 5 [pid 6639] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6643 [pid 6643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6642] <... exit_group resumed>) = ? [pid 6640] exit_group(0 [pid 6643] <... prctl resumed>) = 0 [pid 6642] +++ exited with 0 +++ [pid 6641] +++ exited with 0 +++ [pid 6640] <... exit_group resumed>) = ? [pid 6639] <... exit_group resumed>) = ? [pid 6643] setpgid(0, 0) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6643] write(3, "1000", 4) = 4 [pid 6643] close(3) = 0 [pid 6643] write(1, "executing program\n", 18) = 18 [pid 6643] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6643] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6643] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6640] +++ exited with 0 +++ [pid 6639] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6644 attached [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6644] set_robust_list(0x55556540f660, 24 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6644] <... set_robust_list resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6646 attached ./strace-static-x86_64: Process 6645 attached [pid 6644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6646] set_robust_list(0x55556540f660, 24 [pid 6645] set_robust_list(0x55556540f660, 24 [pid 6644] <... prctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6645 [pid 6646] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6646 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6644 [pid 6644] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6645] <... set_robust_list resumed>) = 0 [pid 6644] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6647 attached [pid 6646] <... prctl resumed>) = 0 [pid 6645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6647] set_robust_list(0x55556540f660, 24 [pid 6646] setpgid(0, 0 [pid 6645] <... prctl resumed>) = 0 [pid 6644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6647 [pid 6647] <... set_robust_list resumed>) = 0 [pid 6645] setpgid(0, 0 [pid 6647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6646] <... setpgid resumed>) = 0 [pid 6645] <... setpgid resumed>) = 0 [pid 6647] <... prctl resumed>) = 0 [pid 6644] <... openat resumed>) = 3 [pid 6644] write(3, "1000", 4 [pid 6647] setpgid(0, 0 [pid 6646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6647] <... setpgid resumed>) = 0 [pid 6644] <... write resumed>) = 4 [pid 6646] <... openat resumed>) = 3 [pid 6645] <... openat resumed>) = 3 [pid 6647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6646] write(3, "1000", 4 [pid 6645] write(3, "1000", 4 [pid 6644] close(3 [pid 6646] <... write resumed>) = 4 [pid 6646] close(3) = 0 executing program [pid 6646] write(1, "executing program\n", 18) = 18 [pid 6645] <... write resumed>) = 4 [pid 6644] <... close resumed>) = 0 [pid 6647] <... openat resumed>) = 3 [pid 6646] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6647] write(3, "1000", 4 [pid 6645] close(3 [pid 6644] write(1, "executing program\n", 18 [pid 6647] <... write resumed>) = 4 executing program [pid 6645] <... close resumed>) = 0 [pid 6644] <... write resumed>) = 18 [pid 6647] close(3 [pid 6645] write(1, "executing program\n", 18 [pid 6647] <... close resumed>) = 0 [pid 6646] <... bpf resumed>) = 3 [pid 6645] <... write resumed>) = 18 [pid 6644] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6647] write(1, "executing program\n", 18 executing program [pid 6646] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6645] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6647] <... write resumed>) = 18 [pid 6646] <... bpf resumed>) = 4 [pid 6645] <... bpf resumed>) = 3 [pid 6644] <... bpf resumed>) = 3 [pid 6647] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6645] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6644] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6647] <... bpf resumed>) = 3 [pid 6646] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6645] <... bpf resumed>) = 4 [pid 6647] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6646] <... bpf resumed>) = 5 [pid 6645] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6644] <... bpf resumed>) = 4 [pid 6643] <... bpf resumed>) = 5 [pid 6646] exit_group(0) = ? [pid 6644] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6643] exit_group(0 [pid 6647] <... bpf resumed>) = 4 [pid 6646] +++ exited with 0 +++ [pid 6645] <... bpf resumed>) = 5 [pid 6644] <... bpf resumed>) = 5 [pid 6643] <... exit_group resumed>) = ? [pid 6647] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6645] exit_group(0 [pid 6644] exit_group(0 [pid 6643] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6647] <... bpf resumed>) = 5 [pid 6645] <... exit_group resumed>) = ? [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6643, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6644] <... exit_group resumed>) = ? [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6645] +++ exited with 0 +++ [pid 6647] exit_group(0) = ? [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6648 attached [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6645, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6648] set_robust_list(0x55556540f660, 24 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6648] <... set_robust_list resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6649 attached [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6649 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6648 [pid 6648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6649] set_robust_list(0x55556540f660, 24 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6649] <... set_robust_list resumed>) = 0 [pid 6648] <... prctl resumed>) = 0 [pid 6649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6648] setpgid(0, 0./strace-static-x86_64: Process 6650 attached [pid 6649] <... prctl resumed>) = 0 [pid 6648] <... setpgid resumed>) = 0 [pid 6644] +++ exited with 0 +++ [pid 6647] +++ exited with 0 +++ [pid 6649] setpgid(0, 0 [pid 6648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6647, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6650] set_robust_list(0x55556540f660, 24 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6650] <... set_robust_list resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6649] <... setpgid resumed>) = 0 [pid 6648] <... openat resumed>) = 3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6650] <... prctl resumed>) = 0 [pid 6649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6648] write(3, "1000", 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6650 [pid 6650] setpgid(0, 0 [pid 6649] <... openat resumed>) = 3 [pid 6648] <... write resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program executing program [pid 6650] <... setpgid resumed>) = 0 [pid 6649] write(3, "1000", 4 [pid 6648] close(3 [pid 6649] <... write resumed>) = 4 [pid 6648] <... close resumed>) = 0 [pid 6649] close(3 [pid 6648] write(1, "executing program\n", 18 [pid 6649] <... close resumed>) = 0 ./strace-static-x86_64: Process 6651 attached [pid 6649] write(1, "executing program\n", 18 [pid 6648] <... write resumed>) = 18 [pid 6649] <... write resumed>) = 18 [pid 6648] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6651] set_robust_list(0x55556540f660, 24 [pid 6650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6651] <... set_robust_list resumed>) = 0 [pid 6649] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6648] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6652 attached [pid 6651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6649] <... bpf resumed>) = 3 [pid 6648] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6651 [pid 6652] set_robust_list(0x55556540f660, 24 [pid 6651] <... prctl resumed>) = 0 [pid 6650] <... openat resumed>) = 3 [pid 6649] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6648] <... bpf resumed>) = 4 [pid 6652] <... set_robust_list resumed>) = 0 [pid 6651] setpgid(0, 0 [pid 6650] write(3, "1000", 4 [pid 6649] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6652 [pid 6651] <... setpgid resumed>) = 0 [pid 6650] <... write resumed>) = 4 [pid 6648] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6650] close(3 [pid 6652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6648] <... bpf resumed>) = 5 [pid 6650] <... close resumed>) = 0 [pid 6652] <... prctl resumed>) = 0 executing program [pid 6650] write(1, "executing program\n", 18 [pid 6652] setpgid(0, 0 [pid 6649] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6648] exit_group(0 [pid 6652] <... setpgid resumed>) = 0 [pid 6651] <... openat resumed>) = 3 [pid 6650] <... write resumed>) = 18 [pid 6649] <... bpf resumed>) = 5 [pid 6649] exit_group(0 [pid 6648] <... exit_group resumed>) = ? [pid 6652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6651] write(3, "1000", 4 [pid 6650] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6651] <... write resumed>) = 4 [pid 6652] <... openat resumed>) = 3 [pid 6651] close(3 [pid 6649] <... exit_group resumed>) = ? [pid 6652] write(3, "1000", 4 [pid 6651] <... close resumed>) = 0 [pid 6650] <... bpf resumed>) = 3 executing program [pid 6652] <... write resumed>) = 4 [pid 6651] write(1, "executing program\n", 18 [pid 6650] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6652] close(3executing program [pid 6651] <... write resumed>) = 18 [pid 6652] <... close resumed>) = 0 [pid 6651] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6652] write(1, "executing program\n", 18 [pid 6650] <... bpf resumed>) = 4 [pid 6652] <... write resumed>) = 18 [pid 6651] <... bpf resumed>) = 3 [pid 6652] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6651] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6650] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6652] <... bpf resumed>) = 3 [pid 6652] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6651] <... bpf resumed>) = 4 [pid 6649] +++ exited with 0 +++ [pid 6648] +++ exited with 0 +++ [pid 6652] <... bpf resumed>) = 4 [pid 6651] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6648, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6649, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6652] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6653 attached ./strace-static-x86_64: Process 6654 attached [pid 6652] <... bpf resumed>) = 5 [pid 6651] <... bpf resumed>) = 5 [pid 6650] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6653 [pid 6653] set_robust_list(0x55556540f660, 24 [pid 6654] set_robust_list(0x55556540f660, 24 [pid 6652] exit_group(0 [pid 6651] exit_group(0 [pid 6654] <... set_robust_list resumed>) = 0 [pid 6653] <... set_robust_list resumed>) = 0 [pid 6652] <... exit_group resumed>) = ? [pid 6651] <... exit_group resumed>) = ? [pid 6654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6652] +++ exited with 0 +++ [pid 6651] +++ exited with 0 +++ [pid 6650] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6654 [pid 6654] <... prctl resumed>) = 0 [pid 6653] <... prctl resumed>) = 0 [pid 6650] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6653] setpgid(0, 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6654] setpgid(0, 0) = 0 [pid 6654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6654] write(3, "1000", 4 [pid 6653] <... setpgid resumed>) = 0 [pid 6650] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6654] <... write resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6654] close(3 [pid 6653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6654] <... close resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6655 attached [pid 6654] write(1, "executing program\n", 18 [pid 6653] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6654] <... write resumed>) = 18 [pid 6654] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6656 attached ) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6655 [pid 6656] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6657 attached ) = 0 [pid 6655] set_robust_list(0x55556540f660, 24 [pid 6654] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6653] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6656 [pid 6657] set_robust_list(0x55556540f660, 24 [pid 6656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6655] <... set_robust_list resumed>) = 0 [pid 6654] <... bpf resumed>) = 4 [pid 6653] <... write resumed>) = 4 [pid 6654] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6657] <... set_robust_list resumed>) = 0 [pid 6656] <... prctl resumed>) = 0 [pid 6655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6653] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6657 [pid 6653] <... close resumed>) = 0 executing program [pid 6656] setpgid(0, 0 [pid 6653] write(1, "executing program\n", 18 [pid 6656] <... setpgid resumed>) = 0 [pid 6655] <... prctl resumed>) = 0 [pid 6653] <... write resumed>) = 18 [pid 6656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6655] setpgid(0, 0 [pid 6654] <... bpf resumed>) = 5 [pid 6653] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6656] <... openat resumed>) = 3 [pid 6657] <... prctl resumed>) = 0 [pid 6655] <... setpgid resumed>) = 0 [pid 6654] exit_group(0 [pid 6653] <... bpf resumed>) = 3 [pid 6657] setpgid(0, 0 [pid 6656] write(3, "1000", 4 [pid 6655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6654] <... exit_group resumed>) = ? [pid 6657] <... setpgid resumed>) = 0 [pid 6656] <... write resumed>) = 4 [pid 6655] <... openat resumed>) = 3 [pid 6653] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6656] close(3) = 0 [pid 6655] write(3, "1000", 4 [pid 6653] <... bpf resumed>) = 4 [pid 6656] write(1, "executing program\n", 18 [pid 6655] <... write resumed>) = 4 [pid 6654] +++ exited with 0 +++ [pid 6655] close(3executing program [pid 6656] <... write resumed>) = 18 [pid 6655] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6654, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6656] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6656] <... bpf resumed>) = 3 [pid 6655] write(1, "executing program\n", 18executing program [pid 6653] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6656] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6655] <... write resumed>) = 18 [pid 6657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6655] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6657] <... openat resumed>) = 3 [pid 6656] <... bpf resumed>) = 4 [pid 6655] <... bpf resumed>) = 3 [pid 6657] write(3, "1000", 4 [pid 6656] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6657] <... write resumed>) = 4 [pid 6655] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6657] close(3) = 0 executing program [pid 6657] write(1, "executing program\n", 18 [pid 6655] <... bpf resumed>) = 4 [pid 6657] <... write resumed>) = 18 [pid 6657] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6655] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6657] <... bpf resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6657] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6658 attached [pid 6657] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6658] set_robust_list(0x55556540f660, 24) = 0 [pid 6658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6658] setpgid(0, 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6658 [pid 6658] <... setpgid resumed>) = 0 [pid 6653] <... bpf resumed>) = 5 [pid 6658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6657] <... bpf resumed>) = 5 [pid 6656] <... bpf resumed>) = 5 [pid 6655] <... bpf resumed>) = 5 [pid 6653] exit_group(0 [pid 6658] <... openat resumed>) = 3 [pid 6657] exit_group(0 [pid 6658] write(3, "1000", 4 [pid 6657] <... exit_group resumed>) = ? [pid 6656] exit_group(0 [pid 6655] exit_group(0 [pid 6653] <... exit_group resumed>) = ? [pid 6658] <... write resumed>) = 4 [pid 6657] +++ exited with 0 +++ [pid 6656] <... exit_group resumed>) = ? [pid 6655] <... exit_group resumed>) = ? [pid 6653] +++ exited with 0 +++ [pid 6658] close(3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6658] <... close resumed>) = 0 [pid 6658] write(1, "executing program\n", 18executing program ) = 18 [pid 6658] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6658] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6658] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6659 attached [pid 6655] +++ exited with 0 +++ [pid 6659] set_robust_list(0x55556540f660, 24 [pid 6656] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6659] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6659 [pid 5845] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6660 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6660 [pid 6659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6660] set_robust_list(0x55556540f660, 24 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6660] <... set_robust_list resumed>) = 0 [pid 6659] <... prctl resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6659] setpgid(0, 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6659] <... setpgid resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6660] <... prctl resumed>) = 0 [pid 6659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6660] setpgid(0, 0./strace-static-x86_64: Process 6661 attached ) = 0 [pid 6661] set_robust_list(0x55556540f660, 24) = 0 [pid 6661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6661] <... prctl resumed>) = 0 [pid 6661] setpgid(0, 0 [pid 6660] <... openat resumed>) = 3 [pid 6659] <... openat resumed>) = 3 [pid 6658] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6661 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6660] write(3, "1000", 4 [pid 6661] <... setpgid resumed>) = 0 [pid 6660] <... write resumed>) = 4 [pid 6658] exit_group(0 [pid 6661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6662 attached [pid 6662] set_robust_list(0x55556540f660, 24 [pid 6661] <... openat resumed>) = 3 executing program executing program [pid 6660] close(3 [pid 6659] write(3, "1000", 4 [pid 6658] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6662 [pid 6660] <... close resumed>) = 0 [pid 6659] <... write resumed>) = 4 [pid 6660] write(1, "executing program\n", 18 [pid 6659] close(3 [pid 6662] <... set_robust_list resumed>) = 0 [pid 6661] write(3, "1000", 4 [pid 6660] <... write resumed>) = 18 [pid 6659] <... close resumed>) = 0 [pid 6662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6661] <... write resumed>) = 4 [pid 6662] <... prctl resumed>) = 0 [pid 6661] close(3 [pid 6662] setpgid(0, 0 [pid 6661] <... close resumed>) = 0 [pid 6662] <... setpgid resumed>) = 0 [pid 6661] write(1, "executing program\n", 18 [pid 6662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6661] <... write resumed>) = 18 [pid 6661] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6659] write(1, "executing program\n", 18 [pid 6658] +++ exited with 0 +++ [pid 6660] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6659] <... write resumed>) = 18 [pid 6662] <... openat resumed>) = 3 [pid 6661] <... bpf resumed>) = 3 [pid 6660] <... bpf resumed>) = 3 [pid 6659] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6662] write(3, "1000", 4 [pid 6661] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6660] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6662] <... write resumed>) = 4 [pid 6661] <... bpf resumed>) = 4 [pid 6659] <... bpf resumed>) = 3 [pid 6662] close(3) = 0 [pid 6662] write(1, "executing program\n", 18) = 18 executing program [pid 6661] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6662] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6660] <... bpf resumed>) = 4 [pid 6662] <... bpf resumed>) = 3 [pid 6659] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6660] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6662] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6659] <... bpf resumed>) = 4 [pid 6659] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6662] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6662] <... bpf resumed>) = 5 [pid 6661] <... bpf resumed>) = 5 [pid 6660] <... bpf resumed>) = 5 [pid 6659] <... bpf resumed>) = 5 [pid 6662] exit_group(0) = ? [pid 6660] exit_group(0 [pid 6662] +++ exited with 0 +++ [pid 6661] exit_group(0 [pid 6660] <... exit_group resumed>) = ? [pid 6659] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6661] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6663 attached [pid 6661] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6661, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6659] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6663] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6663 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6663] <... set_robust_list resumed>) = 0 [pid 6663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6663] setpgid(0, 0) = 0 [pid 6663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6663] write(3, "1000", 4) = 4 [pid 6663] close(3) = 0 [pid 6663] write(1, "executing program\n", 18executing program ) = 18 [pid 6663] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6663] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6663] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6660] +++ exited with 0 +++ [pid 6659] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6659, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6664 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6664] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6665 attached ) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6664 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6665] set_robust_list(0x55556540f660, 24 [pid 6664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6665] <... set_robust_list resumed>) = 0 [pid 6665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6664] <... prctl resumed>) = 0 [pid 6664] setpgid(0, 0./strace-static-x86_64: Process 6667 attached ./strace-static-x86_64: Process 6666 attached [pid 6665] <... prctl resumed>) = 0 [pid 6663] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6665 [pid 6667] set_robust_list(0x55556540f660, 24 [pid 6666] set_robust_list(0x55556540f660, 24 [pid 6665] setpgid(0, 0 [pid 6664] <... setpgid resumed>) = 0 [pid 6663] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6667 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6666 [pid 6667] <... set_robust_list resumed>) = 0 [pid 6666] <... set_robust_list resumed>) = 0 [pid 6665] <... setpgid resumed>) = 0 [pid 6664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6663] <... exit_group resumed>) = ? [pid 6667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6667] <... prctl resumed>) = 0 [pid 6666] <... prctl resumed>) = 0 [pid 6665] <... openat resumed>) = 3 [pid 6664] <... openat resumed>) = 3 [pid 6667] setpgid(0, 0 [pid 6666] setpgid(0, 0 [pid 6667] <... setpgid resumed>) = 0 [pid 6667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6666] <... setpgid resumed>) = 0 [pid 6665] write(3, "1000", 4 [pid 6664] write(3, "1000", 4 [pid 6663] +++ exited with 0 +++ [pid 6666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6665] <... write resumed>) = 4 [pid 6664] <... write resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6667] <... openat resumed>) = 3 [pid 6666] <... openat resumed>) = 3 [pid 6665] close(3 [pid 6664] close(3 [pid 6667] write(3, "1000", 4 [pid 6666] write(3, "1000", 4 [pid 6665] <... close resumed>) = 0 [pid 6664] <... close resumed>) = 0 [pid 6667] <... write resumed>) = 4 [pid 6666] <... write resumed>) = 4 executing program [pid 6665] write(1, "executing program\n", 18 [pid 6664] write(1, "executing program\n", 18executing program [pid 6667] close(3 [pid 6666] close(3 [pid 6665] <... write resumed>) = 18 [pid 6664] <... write resumed>) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6667] <... close resumed>) = 0 [pid 6666] <... close resumed>) = 0 [pid 6665] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6667] write(1, "executing program\n", 18executing program executing program [pid 6666] write(1, "executing program\n", 18 [pid 6665] <... bpf resumed>) = 3 [pid 6664] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6668 attached [pid 6667] <... write resumed>) = 18 [pid 6666] <... write resumed>) = 18 [pid 6665] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6664] <... bpf resumed>) = 3 [pid 6668] set_robust_list(0x55556540f660, 24 [pid 6667] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6666] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6665] <... bpf resumed>) = 4 [pid 6664] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6668] <... set_robust_list resumed>) = 0 [pid 6667] <... bpf resumed>) = 3 [pid 6666] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6668 [pid 6668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6667] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6666] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6668] <... prctl resumed>) = 0 [pid 6665] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6668] setpgid(0, 0 [pid 6667] <... bpf resumed>) = 4 [pid 6666] <... bpf resumed>) = 4 [pid 6665] <... bpf resumed>) = 5 [pid 6664] <... bpf resumed>) = 4 [pid 6668] <... setpgid resumed>) = 0 [pid 6666] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6666] <... bpf resumed>) = 5 [pid 6665] exit_group(0 [pid 6667] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6666] exit_group(0 [pid 6664] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6668] <... openat resumed>) = 3 [pid 6667] <... bpf resumed>) = 5 [pid 6666] <... exit_group resumed>) = ? [pid 6665] <... exit_group resumed>) = ? [pid 6664] <... bpf resumed>) = 5 [pid 6668] write(3, "1000", 4 [pid 6667] exit_group(0 [pid 6664] exit_group(0 [pid 6668] <... write resumed>) = 4 [pid 6667] <... exit_group resumed>) = ? [pid 6664] <... exit_group resumed>) = ? [pid 6668] close(3 [pid 6667] +++ exited with 0 +++ [pid 6665] +++ exited with 0 +++ [pid 6668] <... close resumed>) = 0 executing program [pid 6668] write(1, "executing program\n", 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6668] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6668] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6668] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6668] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6666] +++ exited with 0 +++ [pid 6664] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6670 attached ./strace-static-x86_64: Process 6669 attached [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6670] set_robust_list(0x55556540f660, 24) = 0 [pid 6670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6670 [pid 6670] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6671 attached [pid 6670] setpgid(0, 0 [pid 6669] set_robust_list(0x55556540f660, 24 [pid 6668] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6671] set_robust_list(0x55556540f660, 24 [pid 6670] <... setpgid resumed>) = 0 [pid 6669] <... set_robust_list resumed>) = 0 [pid 6668] exit_group(0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6671 ./strace-static-x86_64: Process 6672 attached [pid 6671] <... set_robust_list resumed>) = 0 [pid 6668] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6669 [pid 6672] set_robust_list(0x55556540f660, 24 [pid 6671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6672] <... set_robust_list resumed>) = 0 [pid 6669] <... prctl resumed>) = 0 [pid 6672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6670] <... openat resumed>) = 3 [pid 6669] setpgid(0, 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6672 [pid 6672] <... prctl resumed>) = 0 [pid 6672] setpgid(0, 0 [pid 6669] <... setpgid resumed>) = 0 [pid 6671] <... prctl resumed>) = 0 [pid 6668] +++ exited with 0 +++ [pid 6672] <... setpgid resumed>) = 0 [pid 6671] setpgid(0, 0 [pid 6670] write(3, "1000", 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6668, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6671] <... setpgid resumed>) = 0 [pid 6670] <... write resumed>) = 4 [pid 6669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6672] <... openat resumed>) = 3 [pid 6670] close(3 [pid 6671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6670] <... close resumed>) = 0 [pid 6672] write(3, "1000", 4 executing program [pid 6670] write(1, "executing program\n", 18 [pid 6669] <... openat resumed>) = 3 [pid 6672] <... write resumed>) = 4 [pid 6671] <... openat resumed>) = 3 [pid 6670] <... write resumed>) = 18 [pid 6669] write(3, "1000", 4 [pid 6672] close(3 [pid 6670] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6672] <... close resumed>) = 0 [pid 6671] write(3, "1000", 4 [pid 6669] <... write resumed>) = 4 [pid 6671] <... write resumed>) = 4 [pid 6669] close(3 executing program [pid 6671] close(3 [pid 6669] <... close resumed>) = 0 [pid 6671] <... close resumed>) = 0 [pid 6669] write(1, "executing program\n", 18executing program [pid 6672] write(1, "executing program\n", 18 executing program [pid 6671] write(1, "executing program\n", 18 [pid 6670] <... bpf resumed>) = 3 [pid 6669] <... write resumed>) = 18 [pid 6672] <... write resumed>) = 18 [pid 6670] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6672] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6671] <... write resumed>) = 18 [pid 6669] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6672] <... bpf resumed>) = 3 [pid 6671] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6670] <... bpf resumed>) = 4 [pid 6672] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6669] <... bpf resumed>) = 3 [pid 6672] <... bpf resumed>) = 4 [pid 6671] <... bpf resumed>) = 3 [pid 6670] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6669] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6671] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6672] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6669] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6671] <... bpf resumed>) = 4 [pid 6669] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6671] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6673 attached [pid 6673] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6673 [pid 6673] <... set_robust_list resumed>) = 0 [pid 6673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6673] setpgid(0, 0) = 0 [pid 6673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6673] write(3, "1000", 4) = 4 [pid 6673] close(3) = 0 executing program [pid 6673] write(1, "executing program\n", 18) = 18 [pid 6673] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6673] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6673] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6670] <... bpf resumed>) = 5 [pid 6670] exit_group(0 [pid 6673] <... bpf resumed>) = 5 [pid 6672] <... bpf resumed>) = 5 [pid 6671] <... bpf resumed>) = 5 [pid 6670] <... exit_group resumed>) = ? [pid 6669] <... bpf resumed>) = 5 [pid 6673] exit_group(0 [pid 6672] exit_group(0 [pid 6671] exit_group(0 [pid 6669] exit_group(0 [pid 6673] <... exit_group resumed>) = ? [pid 6672] <... exit_group resumed>) = ? [pid 6669] <... exit_group resumed>) = ? [pid 6671] <... exit_group resumed>) = ? [pid 6670] +++ exited with 0 +++ [pid 6669] +++ exited with 0 +++ [pid 6672] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6674 attached ./strace-static-x86_64: Process 6675 attached [pid 6675] set_robust_list(0x55556540f660, 24 [pid 6674] set_robust_list(0x55556540f660, 24 [pid 6675] <... set_robust_list resumed>) = 0 [pid 6674] <... set_robust_list resumed>) = 0 [pid 6675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6675] <... prctl resumed>) = 0 [pid 6674] <... prctl resumed>) = 0 [pid 6675] setpgid(0, 0 [pid 6674] setpgid(0, 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6675 [pid 6675] <... setpgid resumed>) = 0 [pid 6674] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6674 [pid 6675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program executing program [pid 6675] <... openat resumed>) = 3 [pid 6674] <... openat resumed>) = 3 [pid 6675] write(3, "1000", 4 [pid 6674] write(3, "1000", 4 [pid 6675] <... write resumed>) = 4 [pid 6674] <... write resumed>) = 4 [pid 6675] close(3 [pid 6674] close(3 [pid 6675] <... close resumed>) = 0 [pid 6674] <... close resumed>) = 0 [pid 6675] write(1, "executing program\n", 18 [pid 6674] write(1, "executing program\n", 18 [pid 6675] <... write resumed>) = 18 [pid 6674] <... write resumed>) = 18 [pid 6675] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6674] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6675] <... bpf resumed>) = 3 [pid 6674] <... bpf resumed>) = 3 [pid 6675] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6674] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6675] <... bpf resumed>) = 4 [pid 6674] <... bpf resumed>) = 4 [pid 6675] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6674] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6673] +++ exited with 0 +++ [pid 6671] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6673, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6676 attached ./strace-static-x86_64: Process 6677 attached ./strace-static-x86_64: Process 6678 attached [pid 6678] set_robust_list(0x55556540f660, 24 [pid 6677] set_robust_list(0x55556540f660, 24 [pid 6676] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6678 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6677 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6676 [pid 6677] <... set_robust_list resumed>) = 0 [pid 6676] <... set_robust_list resumed>) = 0 [pid 6678] <... set_robust_list resumed>) = 0 [pid 6677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6677] <... prctl resumed>) = 0 [pid 6676] <... prctl resumed>) = 0 [pid 6675] <... bpf resumed>) = 5 [pid 6674] <... bpf resumed>) = 5 [pid 6678] <... prctl resumed>) = 0 [pid 6677] setpgid(0, 0 [pid 6676] setpgid(0, 0 [pid 6678] setpgid(0, 0 [pid 6677] <... setpgid resumed>) = 0 [pid 6676] <... setpgid resumed>) = 0 [pid 6675] exit_group(0 [pid 6678] <... setpgid resumed>) = 0 [pid 6677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6674] exit_group(0 [pid 6678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6675] <... exit_group resumed>) = ? [pid 6677] <... openat resumed>) = 3 [pid 6678] <... openat resumed>) = 3 [pid 6676] <... openat resumed>) = 3 [pid 6674] <... exit_group resumed>) = ? [pid 6678] write(3, "1000", 4 [pid 6677] write(3, "1000", 4 [pid 6676] write(3, "1000", 4 [pid 6677] <... write resumed>) = 4 [pid 6676] <... write resumed>) = 4 [pid 6677] close(3 [pid 6676] close(3 [pid 6678] <... write resumed>) = 4 [pid 6677] <... close resumed>) = 0 [pid 6676] <... close resumed>) = 0 executing program executing program [pid 6678] close(3 [pid 6677] write(1, "executing program\n", 18 [pid 6676] write(1, "executing program\n", 18 [pid 6677] <... write resumed>) = 18 [pid 6676] <... write resumed>) = 18 [pid 6678] <... close resumed>) = 0 [pid 6677] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6676] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6678] write(1, "executing program\n", 18 [pid 6677] <... bpf resumed>) = 3 [pid 6678] <... write resumed>) = 18 [pid 6676] <... bpf resumed>) = 3 [pid 6678] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6677] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6678] <... bpf resumed>) = 3 [pid 6676] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6678] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6677] <... bpf resumed>) = 4 [pid 6678] <... bpf resumed>) = 4 [pid 6677] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6676] <... bpf resumed>) = 4 [pid 6676] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6678] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6675] +++ exited with 0 +++ [pid 6674] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6679 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6679 ./strace-static-x86_64: Process 6680 attached [pid 6679] set_robust_list(0x55556540f660, 24 [pid 6678] <... bpf resumed>) = 5 [pid 6677] <... bpf resumed>) = 5 [pid 6676] <... bpf resumed>) = 5 [pid 6680] set_robust_list(0x55556540f660, 24 [pid 6678] exit_group(0 [pid 6677] exit_group(0 [pid 6680] <... set_robust_list resumed>) = 0 [pid 6678] <... exit_group resumed>) = ? [pid 6677] <... exit_group resumed>) = ? [pid 6680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6679] <... set_robust_list resumed>) = 0 [pid 6676] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6680 [pid 6679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6677] +++ exited with 0 +++ [pid 6676] <... exit_group resumed>) = ? [pid 6680] <... prctl resumed>) = 0 [pid 6679] <... prctl resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6680] setpgid(0, 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6680] <... setpgid resumed>) = 0 [pid 6679] setpgid(0, 0) = 0 [pid 6680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6680] <... openat resumed>) = 3 [pid 6679] <... openat resumed>) = 3 [pid 6680] write(3, "1000", 4 [pid 6679] write(3, "1000", 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6680] <... write resumed>) = 4 [pid 6679] <... write resumed>) = 4 [pid 6680] close(3 [pid 6679] close(3 [pid 6680] <... close resumed>) = 0 [pid 6679] <... close resumed>) = 0 [pid 6680] write(1, "executing program\n", 18executing program executing program [pid 6679] write(1, "executing program\n", 18 [pid 6680] <... write resumed>) = 18 [pid 6679] <... write resumed>) = 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6680] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6681 attached [pid 6679] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6678] +++ exited with 0 +++ [pid 6676] +++ exited with 0 +++ [pid 6681] set_robust_list(0x55556540f660, 24 [pid 6680] <... bpf resumed>) = 3 [pid 6679] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6681 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6681] <... set_robust_list resumed>) = 0 [pid 6680] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6679] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6680] <... bpf resumed>) = 4 [pid 6679] <... bpf resumed>) = 4 [pid 6681] <... prctl resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6681] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6682 attached [pid 6681] <... setpgid resumed>) = 0 [pid 6681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6680] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6679] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6683 attached [pid 6682] set_robust_list(0x55556540f660, 24 [pid 6681] <... openat resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6682 [pid 6683] set_robust_list(0x55556540f660, 24 [pid 6682] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6683 [pid 6683] <... set_robust_list resumed>) = 0 [pid 6682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6681] write(3, "1000", 4 [pid 6683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6681] <... write resumed>) = 4 [pid 6681] close(3) = 0 [pid 6683] <... prctl resumed>) = 0 [pid 6682] <... prctl resumed>) = 0 [pid 6682] setpgid(0, 0 [pid 6683] setpgid(0, 0 [pid 6681] write(1, "executing program\n", 18executing program [pid 6683] <... setpgid resumed>) = 0 [pid 6682] <... setpgid resumed>) = 0 [pid 6681] <... write resumed>) = 18 [pid 6680] <... bpf resumed>) = 5 [pid 6679] <... bpf resumed>) = 5 [pid 6682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6681] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6681] <... bpf resumed>) = 3 [pid 6680] exit_group(0 [pid 6679] exit_group(0 [pid 6681] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6680] <... exit_group resumed>) = ? [pid 6679] <... exit_group resumed>) = ? [pid 6683] <... openat resumed>) = 3 [pid 6682] <... openat resumed>) = 3 [pid 6681] <... bpf resumed>) = 4 [pid 6683] write(3, "1000", 4 [pid 6682] write(3, "1000", 4 [pid 6683] <... write resumed>) = 4 [pid 6682] <... write resumed>) = 4 [pid 6683] close(3 [pid 6682] close(3 [pid 6683] <... close resumed>) = 0 [pid 6682] <... close resumed>) = 0 executing program executing program [pid 6683] write(1, "executing program\n", 18 [pid 6682] write(1, "executing program\n", 18 [pid 6681] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6683] <... write resumed>) = 18 [pid 6682] <... write resumed>) = 18 [pid 6682] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6683] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6682] <... bpf resumed>) = 3 [pid 6683] <... bpf resumed>) = 3 [pid 6683] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6682] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6683] <... bpf resumed>) = 4 [pid 6682] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6683] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6680] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6679] +++ exited with 0 +++ [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6683] <... bpf resumed>) = 5 [pid 6682] <... bpf resumed>) = 5 [pid 6681] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6684 attached [pid 6683] exit_group(0 [pid 6682] exit_group(0 [pid 6683] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6682] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6685 attached [pid 6681] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6684 [pid 6685] set_robust_list(0x55556540f660, 24) = 0 [pid 6685] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6682] +++ exited with 0 +++ [pid 6685] <... prctl resumed>) = 0 [pid 6685] setpgid(0, 0 [pid 6684] set_robust_list(0x55556540f660, 24 [pid 6683] +++ exited with 0 +++ [pid 6681] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6685 [pid 6684] <... set_robust_list resumed>) = 0 [pid 6685] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6686 attached [pid 6685] write(3, "1000", 4 [pid 6684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6681] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6684] <... prctl resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6685] <... write resumed>) = 4 [pid 6685] close(3 [pid 6684] setpgid(0, 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6686] set_robust_list(0x55556540f660, 24 executing program [pid 6685] <... close resumed>) = 0 [pid 6685] write(1, "executing program\n", 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6686 [pid 6686] <... set_robust_list resumed>) = 0 [pid 6685] <... write resumed>) = 18 [pid 6684] <... setpgid resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6681, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6686] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6685] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6685] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6686] <... prctl resumed>) = 0 [pid 6685] <... bpf resumed>) = 4 [pid 6685] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6688 attached ./strace-static-x86_64: Process 6687 attached [pid 6686] setpgid(0, 0 [pid 6684] <... openat resumed>) = 3 [pid 6686] <... setpgid resumed>) = 0 [pid 6688] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6687 [pid 6688] <... set_robust_list resumed>) = 0 [pid 6687] set_robust_list(0x55556540f660, 24 [pid 6686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6685] <... bpf resumed>) = 5 [pid 6684] write(3, "1000", 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6688 [pid 6688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6687] <... set_robust_list resumed>) = 0 [pid 6686] <... openat resumed>) = 3 [pid 6685] exit_group(0 [pid 6684] <... write resumed>) = 4 executing program [pid 6685] <... exit_group resumed>) = ? [pid 6688] <... prctl resumed>) = 0 [pid 6687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6686] write(3, "1000", 4 [pid 6684] close(3 [pid 6688] setpgid(0, 0) = 0 [pid 6687] <... prctl resumed>) = 0 [pid 6686] <... write resumed>) = 4 [pid 6684] <... close resumed>) = 0 [pid 6688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6687] setpgid(0, 0 [pid 6686] close(3 [pid 6684] write(1, "executing program\n", 18 [pid 6686] <... close resumed>) = 0 [pid 6685] +++ exited with 0 +++ [pid 6688] <... openat resumed>) = 3 [pid 6687] <... setpgid resumed>) = 0 [pid 6686] write(1, "executing program\n", 18 [pid 6684] <... write resumed>) = 18 [pid 6687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6688] write(3, "1000", 4 [pid 6686] <... write resumed>) = 18 [pid 6684] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6688] <... write resumed>) = 4 [pid 6687] <... openat resumed>) = 3 [pid 6686] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6684] <... bpf resumed>) = 3 [pid 6688] close(3) = 0 [pid 6687] write(3, "1000", 4 [pid 6686] <... bpf resumed>) = 3 [pid 6684] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 executing program [pid 6688] write(1, "executing program\n", 18 [pid 6687] <... write resumed>) = 4 [pid 6688] <... write resumed>) = 18 [pid 6687] close(3 [pid 6686] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6684] <... bpf resumed>) = 4 [pid 6688] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6687] <... close resumed>) = 0 [pid 6686] <... bpf resumed>) = 4 [pid 6688] <... bpf resumed>) = 3 executing program [pid 6687] write(1, "executing program\n", 18 [pid 6684] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6687] <... write resumed>) = 18 [pid 6688] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6687] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6688] <... bpf resumed>) = 4 [pid 6687] <... bpf resumed>) = 3 [pid 6686] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6687] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6688] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6687] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6689 attached [pid 6687] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6684] <... bpf resumed>) = 5 [pid 6686] <... bpf resumed>) = 5 [pid 6687] <... bpf resumed>) = 5 [pid 6689] set_robust_list(0x55556540f660, 24 [pid 6687] exit_group(0 [pid 6689] <... set_robust_list resumed>) = 0 [pid 6686] exit_group(0 [pid 6689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6688] <... bpf resumed>) = 5 [pid 6687] <... exit_group resumed>) = ? [pid 6686] <... exit_group resumed>) = ? [pid 6689] <... prctl resumed>) = 0 [pid 6688] exit_group(0 [pid 6687] +++ exited with 0 +++ [pid 6684] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6689 [pid 6688] <... exit_group resumed>) = ? [pid 6684] <... exit_group resumed>) = ? [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6689] setpgid(0, 0 [pid 6688] +++ exited with 0 +++ [pid 6686] +++ exited with 0 +++ [pid 6684] +++ exited with 0 +++ [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6689] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6688, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6684, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... restart_syscall resumed>) = 0 [pid 6689] <... openat resumed>) = 3 [pid 6689] write(3, "1000", 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6689] <... write resumed>) = 4 [pid 6689] close(3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6689] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6691 attached [pid 6689] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 6692 attached ./strace-static-x86_64: Process 6690 attached [pid 6691] set_robust_list(0x55556540f660, 24 [pid 6689] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6690 [pid 6689] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6692] set_robust_list(0x55556540f660, 24 [pid 6690] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6693 attached [pid 6692] <... set_robust_list resumed>) = 0 [pid 6691] <... set_robust_list resumed>) = 0 [pid 6690] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6692 [pid 6693] set_robust_list(0x55556540f660, 24 [pid 6692] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6689] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6691 [pid 6693] <... set_robust_list resumed>) = 0 [pid 6692] <... prctl resumed>) = 0 [pid 6690] <... prctl resumed>) = 0 [pid 6693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6692] setpgid(0, 0 [pid 6690] setpgid(0, 0 [pid 6693] <... prctl resumed>) = 0 [pid 6692] <... setpgid resumed>) = 0 [pid 6693] setpgid(0, 0 [pid 6692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6690] <... setpgid resumed>) = 0 [pid 6693] <... setpgid resumed>) = 0 [pid 6693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6691] <... prctl resumed>) = 0 [pid 6690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6689] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6693 [pid 6692] <... openat resumed>) = 3 [pid 6693] <... openat resumed>) = 3 [pid 6691] setpgid(0, 0 [pid 6690] <... openat resumed>) = 3 [pid 6689] <... bpf resumed>) = 4 [pid 6691] <... setpgid resumed>) = 0 [pid 6693] write(3, "1000", 4 [pid 6692] write(3, "1000", 4 [pid 6691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6690] write(3, "1000", 4 [pid 6693] <... write resumed>) = 4 [pid 6692] <... write resumed>) = 4 [pid 6690] <... write resumed>) = 4 [pid 6693] close(3 [pid 6692] close(3 [pid 6690] close(3 [pid 6692] <... close resumed>) = 0 [pid 6690] <... close resumed>) = 0 [pid 6693] <... close resumed>) = 0 [pid 6692] write(1, "executing program\n", 18 [pid 6691] <... openat resumed>) = 3 executing program executing program [pid 6690] write(1, "executing program\n", 18 [pid 6689] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6693] write(1, "executing program\n", 18 [pid 6692] <... write resumed>) = 18 [pid 6691] write(3, "1000", 4 [pid 6690] <... write resumed>) = 18 [pid 6689] <... bpf resumed>) = 5 [pid 6693] <... write resumed>) = 18 executing program [pid 6692] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6691] <... write resumed>) = 4 [pid 6693] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6691] close(3 [pid 6690] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6689] exit_group(0 [pid 6693] <... bpf resumed>) = 3 [pid 6692] <... bpf resumed>) = 3 [pid 6691] <... close resumed>) = 0 [pid 6689] <... exit_group resumed>) = ? executing program [pid 6693] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6692] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6691] write(1, "executing program\n", 18 [pid 6690] <... bpf resumed>) = 3 [pid 6689] +++ exited with 0 +++ [pid 6691] <... write resumed>) = 18 [pid 6691] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6690] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6693] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6691] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 ./strace-static-x86_64: Process 6694 attached [pid 6694] set_robust_list(0x55556540f660, 24) = 0 [pid 6693] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6692] <... bpf resumed>) = 4 [pid 6691] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6690] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6694 [pid 6694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6692] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6690] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6694] <... prctl resumed>) = 0 [pid 6694] setpgid(0, 0) = 0 [pid 6693] <... bpf resumed>) = 5 [pid 6694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6692] <... bpf resumed>) = 5 [pid 6691] <... bpf resumed>) = 5 [pid 6690] <... bpf resumed>) = 5 [pid 6694] <... openat resumed>) = 3 [pid 6693] exit_group(0 [pid 6692] exit_group(0 [pid 6691] exit_group(0 [pid 6690] exit_group(0 [pid 6692] <... exit_group resumed>) = ? [pid 6694] write(3, "1000", 4 [pid 6693] <... exit_group resumed>) = ? [pid 6691] <... exit_group resumed>) = ? [pid 6694] <... write resumed>) = 4 [pid 6693] +++ exited with 0 +++ [pid 6692] +++ exited with 0 +++ [pid 6690] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6694] close(3) = 0 executing program [pid 6694] write(1, "executing program\n", 18) = 18 [pid 6694] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6694] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... restart_syscall resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6694] <... bpf resumed>) = 4 [pid 6691] +++ exited with 0 +++ [pid 6690] +++ exited with 0 +++ [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6695 attached [pid 6694] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6695] set_robust_list(0x55556540f660, 24 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6695 ./strace-static-x86_64: Process 6697 attached [pid 6695] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6696 attached [pid 6696] set_robust_list(0x55556540f660, 24 [pid 6695] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6696] <... set_robust_list resumed>) = 0 [pid 6695] <... prctl resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6696 ./strace-static-x86_64: Process 6698 attached [pid 6697] set_robust_list(0x55556540f660, 24 [pid 6696] <... prctl resumed>) = 0 [pid 6695] setpgid(0, 0 [pid 6694] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6697 [pid 6698] set_robust_list(0x55556540f660, 24) = 0 [pid 6697] <... set_robust_list resumed>) = 0 [pid 6696] setpgid(0, 0 [pid 6695] <... setpgid resumed>) = 0 [pid 6694] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6698 [pid 6698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6697] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6696] <... setpgid resumed>) = 0 [pid 6695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6698] <... prctl resumed>) = 0 [pid 6697] <... prctl resumed>) = 0 [pid 6696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6694] <... exit_group resumed>) = ? [pid 6698] setpgid(0, 0) = 0 [pid 6697] setpgid(0, 0 [pid 6696] <... openat resumed>) = 3 [pid 6695] <... openat resumed>) = 3 [pid 6697] <... setpgid resumed>) = 0 [pid 6697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6696] write(3, "1000", 4 [pid 6698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6696] <... write resumed>) = 4 [pid 6696] close(3 [pid 6695] write(3, "1000", 4 [pid 6697] <... openat resumed>) = 3 [pid 6696] <... close resumed>) = 0 [pid 6695] <... write resumed>) = 4 [pid 6695] close(3) = 0 [pid 6694] +++ exited with 0 +++ [pid 6696] write(1, "executing program\n", 18executing program executing program [pid 6698] <... openat resumed>) = 3 [pid 6697] write(3, "1000", 4 [pid 6696] <... write resumed>) = 18 [pid 6695] write(1, "executing program\n", 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6694, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6698] write(3, "1000", 4 [pid 6697] <... write resumed>) = 4 [pid 6696] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6695] <... write resumed>) = 18 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6698] <... write resumed>) = 4 [pid 6698] close(3 [pid 6697] close(3 [pid 6696] <... bpf resumed>) = 3 [pid 6695] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6698] <... close resumed>) = 0 [pid 6697] <... close resumed>) = 0 [pid 6696] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program executing program [pid 6695] <... bpf resumed>) = 3 [pid 6698] write(1, "executing program\n", 18 [pid 6697] write(1, "executing program\n", 18 [pid 6696] <... bpf resumed>) = 4 [pid 6698] <... write resumed>) = 18 [pid 6697] <... write resumed>) = 18 [pid 6695] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6698] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6697] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6696] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6695] <... bpf resumed>) = 4 [pid 6698] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6697] <... bpf resumed>) = 3 [pid 6697] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6698] <... bpf resumed>) = 4 [pid 6697] <... bpf resumed>) = 4 [pid 6695] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6698] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6697] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6699 attached , child_tidptr=0x55556540f650) = 6699 [pid 6699] set_robust_list(0x55556540f660, 24) = 0 [pid 6699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6699] setpgid(0, 0) = 0 [pid 6699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6699] write(3, "1000", 4) = 4 [pid 6699] close(3) = 0 executing program [pid 6699] write(1, "executing program\n", 18) = 18 [pid 6699] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6699] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6699] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6698] <... bpf resumed>) = 5 [pid 6697] <... bpf resumed>) = 5 [pid 6696] <... bpf resumed>) = 5 [pid 6695] <... bpf resumed>) = 5 [pid 6698] exit_group(0) = ? [pid 6699] exit_group(0 [pid 6698] +++ exited with 0 +++ [pid 6697] exit_group(0 [pid 6696] exit_group(0 [pid 6695] exit_group(0 [pid 6699] <... exit_group resumed>) = ? [pid 6697] <... exit_group resumed>) = ? [pid 6696] <... exit_group resumed>) = ? [pid 6695] <... exit_group resumed>) = ? [pid 6697] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6695] +++ exited with 0 +++ [pid 6699] +++ exited with 0 +++ [pid 6696] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6698, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6700 attached [pid 6700] set_robust_list(0x55556540f660, 24 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6700 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6700] <... set_robust_list resumed>) = 0 [pid 6700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6700] setpgid(0, 0./strace-static-x86_64: Process 6701 attached [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6700] <... setpgid resumed>) = 0 [pid 6700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6701 ./strace-static-x86_64: Process 6702 attached ./strace-static-x86_64: Process 6704 attached ./strace-static-x86_64: Process 6703 attached [pid 6702] set_robust_list(0x55556540f660, 24 [pid 6701] set_robust_list(0x55556540f660, 24 [pid 6700] write(3, "1000", 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6702 [pid 6701] <... set_robust_list resumed>) = 0 [pid 6704] set_robust_list(0x55556540f660, 24 [pid 6703] set_robust_list(0x55556540f660, 24 [pid 6702] <... set_robust_list resumed>) = 0 [pid 6701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6700] <... write resumed>) = 4 [pid 6704] <... set_robust_list resumed>) = 0 [pid 6703] <... set_robust_list resumed>) = 0 [pid 6700] close(3 [pid 6704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6701] <... prctl resumed>) = 0 [pid 6700] <... close resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6704 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6703 [pid 6704] <... prctl resumed>) = 0 [pid 6703] <... prctl resumed>) = 0 [pid 6701] setpgid(0, 0 executing program [pid 6700] write(1, "executing program\n", 18 [pid 6704] setpgid(0, 0 [pid 6703] setpgid(0, 0 [pid 6700] <... write resumed>) = 18 [pid 6702] <... prctl resumed>) = 0 [pid 6704] <... setpgid resumed>) = 0 [pid 6701] <... setpgid resumed>) = 0 [pid 6700] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6702] setpgid(0, 0 [pid 6701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6702] <... setpgid resumed>) = 0 [pid 6704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6703] <... setpgid resumed>) = 0 [pid 6702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6700] <... bpf resumed>) = 3 [pid 6704] <... openat resumed>) = 3 [pid 6703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6701] <... openat resumed>) = 3 [pid 6700] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6704] write(3, "1000", 4 [pid 6703] <... openat resumed>) = 3 [pid 6702] <... openat resumed>) = 3 [pid 6701] write(3, "1000", 4 [pid 6700] <... bpf resumed>) = 4 [pid 6704] <... write resumed>) = 4 [pid 6702] write(3, "1000", 4 [pid 6701] <... write resumed>) = 4 [pid 6704] close(3 [pid 6703] write(3, "1000", 4 [pid 6704] <... close resumed>) = 0 executing program [pid 6703] <... write resumed>) = 4 [pid 6704] write(1, "executing program\n", 18 [pid 6703] close(3 [pid 6700] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6704] <... write resumed>) = 18 [pid 6703] <... close resumed>) = 0 [pid 6704] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6703] write(1, "executing program\n", 18 [pid 6702] <... write resumed>) = 4 executing program [pid 6701] close(3 [pid 6700] <... bpf resumed>) = 5 [pid 6702] close(3 [pid 6701] <... close resumed>) = 0 [pid 6702] <... close resumed>) = 0 [pid 6701] write(1, "executing program\n", 18 [pid 6702] write(1, "executing program\n", 18 [pid 6701] <... write resumed>) = 18 executing program executing program [pid 6702] <... write resumed>) = 18 [pid 6704] <... bpf resumed>) = 3 [pid 6703] <... write resumed>) = 18 [pid 6701] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6700] exit_group(0 [pid 6704] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6703] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6702] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6700] <... exit_group resumed>) = ? [pid 6704] <... bpf resumed>) = 4 [pid 6703] <... bpf resumed>) = 3 [pid 6701] <... bpf resumed>) = 3 [pid 6703] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6702] <... bpf resumed>) = 3 [pid 6701] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6700] +++ exited with 0 +++ [pid 6704] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6703] <... bpf resumed>) = 4 [pid 6702] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6703] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6702] <... bpf resumed>) = 4 [pid 6701] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6702] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6701] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6705 attached [pid 6705] set_robust_list(0x55556540f660, 24 [pid 6704] <... bpf resumed>) = 5 [pid 6703] <... bpf resumed>) = 5 [pid 6702] <... bpf resumed>) = 5 [pid 6701] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6705 [pid 6705] <... set_robust_list resumed>) = 0 [pid 6704] exit_group(0 [pid 6705] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6704] <... exit_group resumed>) = ? [pid 6703] exit_group(0 [pid 6702] exit_group(0 [pid 6701] exit_group(0 [pid 6705] <... prctl resumed>) = 0 [pid 6704] +++ exited with 0 +++ [pid 6703] <... exit_group resumed>) = ? [pid 6702] <... exit_group resumed>) = ? [pid 6701] <... exit_group resumed>) = ? [pid 6705] setpgid(0, 0 [pid 6702] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6705] <... setpgid resumed>) = 0 [pid 6705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6705] <... openat resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6705] write(3, "1000", 4./strace-static-x86_64: Process 6706 attached ) = 4 [pid 6705] close(3 [pid 6706] set_robust_list(0x55556540f660, 24 [pid 6705] <... close resumed>) = 0 [pid 6703] +++ exited with 0 +++ [pid 6701] +++ exited with 0 +++ executing program [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6706 [pid 6706] <... set_robust_list resumed>) = 0 [pid 6705] write(1, "executing program\n", 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6705] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6706] <... prctl resumed>) = 0 [pid 6705] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6706] setpgid(0, 0 [pid 6705] <... bpf resumed>) = 3 [pid 6706] <... setpgid resumed>) = 0 [pid 6705] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6707 attached ./strace-static-x86_64: Process 6708 attached [pid 6706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6705] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6706] <... openat resumed>) = 3 [pid 6706] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 6709 attached [pid 6708] set_robust_list(0x55556540f660, 24 [pid 6707] set_robust_list(0x55556540f660, 24 [pid 6706] close(3 [pid 6705] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6707 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6708 [pid 6709] set_robust_list(0x55556540f660, 24 [pid 6708] <... set_robust_list resumed>) = 0 [pid 6709] <... set_robust_list resumed>) = 0 [pid 6707] <... set_robust_list resumed>) = 0 [pid 6706] <... close resumed>) = 0 [pid 6705] <... bpf resumed>) = 5 [pid 6708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6709] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 6708] <... prctl resumed>) = 0 [pid 6707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6706] write(1, "executing program\n", 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6709 [pid 6708] setpgid(0, 0 [pid 6709] <... prctl resumed>) = 0 [pid 6707] <... prctl resumed>) = 0 [pid 6706] <... write resumed>) = 18 [pid 6705] exit_group(0 [pid 6709] setpgid(0, 0 [pid 6707] setpgid(0, 0 [pid 6706] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6705] <... exit_group resumed>) = ? [pid 6709] <... setpgid resumed>) = 0 [pid 6708] <... setpgid resumed>) = 0 [pid 6707] <... setpgid resumed>) = 0 [pid 6706] <... bpf resumed>) = 3 [pid 6709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6705] +++ exited with 0 +++ [pid 6709] <... openat resumed>) = 3 [pid 6708] <... openat resumed>) = 3 [pid 6707] <... openat resumed>) = 3 [pid 6706] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6709] write(3, "1000", 4 [pid 6708] write(3, "1000", 4 [pid 6707] write(3, "1000", 4 [pid 6706] <... bpf resumed>) = 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6708] <... write resumed>) = 4 [pid 6707] <... write resumed>) = 4 [pid 6708] close(3 [pid 6709] <... write resumed>) = 4 [pid 6708] <... close resumed>) = 0 [pid 6707] close(3 [pid 6709] close(3 [pid 6708] write(1, "executing program\n", 18 [pid 6707] <... close resumed>) = 0 [pid 6709] <... close resumed>) = 0 executing program [pid 6707] write(1, "executing program\n", 18 [pid 6706] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6709] write(1, "executing program\n", 18 [pid 6707] <... write resumed>) = 18 [pid 6709] <... write resumed>) = 18 executing program [pid 6707] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6709] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6708] <... write resumed>) = 18 [pid 6709] <... bpf resumed>) = 3 [pid 6708] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6707] <... bpf resumed>) = 3 [pid 6709] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6707] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6709] <... bpf resumed>) = 4 [pid 6708] <... bpf resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6708] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6707] <... bpf resumed>) = 4 [pid 6709] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6707] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6708] <... bpf resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6710 ./strace-static-x86_64: Process 6710 attached [pid 6709] <... bpf resumed>) = 5 [pid 6708] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6707] <... bpf resumed>) = 5 [pid 6706] <... bpf resumed>) = 5 [pid 6710] set_robust_list(0x55556540f660, 24 [pid 6709] exit_group(0 [pid 6708] <... bpf resumed>) = 5 [pid 6706] exit_group(0 [pid 6710] <... set_robust_list resumed>) = 0 [pid 6708] exit_group(0 [pid 6707] exit_group(0 [pid 6706] <... exit_group resumed>) = ? [pid 6710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6709] <... exit_group resumed>) = ? [pid 6707] <... exit_group resumed>) = ? [pid 6710] <... prctl resumed>) = 0 [pid 6709] +++ exited with 0 +++ [pid 6708] <... exit_group resumed>) = ? [pid 6706] +++ exited with 0 +++ [pid 6710] setpgid(0, 0) = 0 [pid 6710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6710] write(3, "1000", 4) = 4 [pid 6710] close(3) = 0 [pid 6710] write(1, "executing program\n", 18 [pid 6708] +++ exited with 0 +++ [pid 6707] +++ exited with 0 +++ executing program [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6710] <... write resumed>) = 18 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6710] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6710] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6711 attached [pid 6710] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6711] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 6713 attached ./strace-static-x86_64: Process 6712 attached [pid 6711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6710] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6711 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6714 attached [pid 6713] set_robust_list(0x55556540f660, 24 [pid 6712] set_robust_list(0x55556540f660, 24 [pid 6711] <... prctl resumed>) = 0 [pid 6710] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6712 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6713 [pid 6714] set_robust_list(0x55556540f660, 24 [pid 6713] <... set_robust_list resumed>) = 0 [pid 6712] <... set_robust_list resumed>) = 0 [pid 6711] setpgid(0, 0 [pid 6714] <... set_robust_list resumed>) = 0 [pid 6714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6714] <... prctl resumed>) = 0 [pid 6711] <... setpgid resumed>) = 0 [pid 6714] setpgid(0, 0) = 0 [pid 6713] <... prctl resumed>) = 0 [pid 6712] <... prctl resumed>) = 0 [pid 6711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6714 [pid 6714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6713] setpgid(0, 0 [pid 6712] setpgid(0, 0 [pid 6713] <... setpgid resumed>) = 0 [pid 6712] <... setpgid resumed>) = 0 [pid 6711] <... openat resumed>) = 3 [pid 6710] <... bpf resumed>) = 5 [pid 6714] <... openat resumed>) = 3 [pid 6714] write(3, "1000", 4 [pid 6712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6714] <... write resumed>) = 4 [pid 6713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6711] write(3, "1000", 4 [pid 6714] close(3 [pid 6713] <... openat resumed>) = 3 [pid 6712] <... openat resumed>) = 3 [pid 6711] <... write resumed>) = 4 [pid 6710] exit_group(0 [pid 6714] <... close resumed>) = 0 [pid 6710] <... exit_group resumed>) = ? executing program [pid 6714] write(1, "executing program\n", 18 [pid 6713] write(3, "1000", 4 [pid 6712] write(3, "1000", 4 [pid 6711] close(3 [pid 6710] +++ exited with 0 +++ [pid 6714] <... write resumed>) = 18 [pid 6713] <... write resumed>) = 4 [pid 6712] <... write resumed>) = 4 [pid 6711] <... close resumed>) = 0 [pid 6713] close(3 [pid 6712] close(3 [pid 6714] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6713] <... close resumed>) = 0 [pid 6712] <... close resumed>) = 0 [pid 6711] write(1, "executing program\n", 18) = 18 [pid 6714] <... bpf resumed>) = 3 [pid 6713] write(1, "executing program\n", 18executing program executing program [pid 6712] write(1, "executing program\n", 18 [pid 6711] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6713] <... write resumed>) = 18 [pid 6712] <... write resumed>) = 18 [pid 6714] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6713] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6712] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6711] <... bpf resumed>) = 3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6714] <... bpf resumed>) = 4 [pid 6713] <... bpf resumed>) = 3 [pid 6712] <... bpf resumed>) = 3 [pid 6711] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6714] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6713] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6712] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6711] <... bpf resumed>) = 4 [pid 6714] <... bpf resumed>) = 5 [pid 6713] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6715 attached [pid 6714] exit_group(0) = ? [pid 6712] <... bpf resumed>) = 4 [pid 6711] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6713] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6715] set_robust_list(0x55556540f660, 24 [pid 6712] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6713] <... bpf resumed>) = 5 [pid 6711] <... bpf resumed>) = 5 [pid 6715] <... set_robust_list resumed>) = 0 [pid 6712] <... bpf resumed>) = 5 [pid 6715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6711] exit_group(0 [pid 6715] <... prctl resumed>) = 0 [pid 6714] +++ exited with 0 +++ [pid 6713] exit_group(0 [pid 6712] exit_group(0 [pid 6711] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6715 [pid 6715] setpgid(0, 0 [pid 6713] <... exit_group resumed>) = ? [pid 6712] <... exit_group resumed>) = ? [pid 6711] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6715] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6714, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6715] write(3, "1000", 4) = 4 [pid 6715] close(3) = 0 executing program [pid 6715] write(1, "executing program\n", 18) = 18 [pid 6715] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6713] +++ exited with 0 +++ [pid 6712] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6715] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6712, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6715] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6716 attached [pid 6715] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6718 attached ./strace-static-x86_64: Process 6717 attached [pid 6716] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6719 attached [pid 6717] set_robust_list(0x55556540f660, 24 [pid 6716] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6716 [pid 6719] set_robust_list(0x55556540f660, 24 [pid 6718] set_robust_list(0x55556540f660, 24 [pid 6717] <... set_robust_list resumed>) = 0 [pid 6715] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6718 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6717 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6719 [pid 6717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6717] <... prctl resumed>) = 0 [pid 6717] setpgid(0, 0) = 0 [pid 6719] <... set_robust_list resumed>) = 0 [pid 6718] <... set_robust_list resumed>) = 0 [pid 6717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6716] <... prctl resumed>) = 0 [pid 6719] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6716] setpgid(0, 0 [pid 6715] <... bpf resumed>) = 5 [pid 6719] <... prctl resumed>) = 0 [pid 6718] <... prctl resumed>) = 0 [pid 6716] <... setpgid resumed>) = 0 [pid 6719] setpgid(0, 0 [pid 6718] setpgid(0, 0 [pid 6717] <... openat resumed>) = 3 [pid 6716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6715] exit_group(0 [pid 6719] <... setpgid resumed>) = 0 [pid 6718] <... setpgid resumed>) = 0 [pid 6717] write(3, "1000", 4 [pid 6715] <... exit_group resumed>) = ? [pid 6719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6717] <... write resumed>) = 4 [pid 6716] <... openat resumed>) = 3 [pid 6715] +++ exited with 0 +++ [pid 6717] close(3executing program [pid 6719] <... openat resumed>) = 3 [pid 6717] <... close resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6717] write(1, "executing program\n", 18 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6717] <... write resumed>) = 18 [pid 6717] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6716] write(3, "1000", 4) = 4 [pid 6718] <... openat resumed>) = 3 [pid 6719] write(3, "1000", 4 [pid 6717] <... bpf resumed>) = 3 executing program executing program executing program [pid 6716] close(3 [pid 6718] write(3, "1000", 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6719] <... write resumed>) = 4 [pid 6718] <... write resumed>) = 4 [pid 6716] <... close resumed>) = 0 [pid 6719] close(3 [pid 6718] close(3 [pid 6716] write(1, "executing program\n", 18 [pid 6719] <... close resumed>) = 0 [pid 6718] <... close resumed>) = 0 [pid 6716] <... write resumed>) = 18 [pid 6719] write(1, "executing program\n", 18 [pid 6718] write(1, "executing program\n", 18 [pid 6719] <... write resumed>) = 18 [pid 6718] <... write resumed>) = 18 [pid 6719] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6717] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6718] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6719] <... bpf resumed>) = 3 [pid 6717] <... bpf resumed>) = 4 [pid 6716] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6719] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6717] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6719] <... bpf resumed>) = 4 [pid 6718] <... bpf resumed>) = 3 [pid 6717] <... bpf resumed>) = 5 [pid 6716] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6720 attached [pid 6716] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6719] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6718] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6720] set_robust_list(0x55556540f660, 24 [pid 6717] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6720 [pid 6720] <... set_robust_list resumed>) = 0 [pid 6717] <... exit_group resumed>) = ? [pid 6720] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6719] <... bpf resumed>) = 5 [pid 6718] <... bpf resumed>) = 4 [pid 6716] <... bpf resumed>) = 4 [pid 6720] <... prctl resumed>) = 0 [pid 6720] setpgid(0, 0) = 0 [pid 6719] exit_group(0 [pid 6720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6719] <... exit_group resumed>) = ? [pid 6718] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6716] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6720] <... openat resumed>) = 3 [pid 6720] write(3, "1000", 4) = 4 [pid 6720] close(3) = 0 executing program [pid 6720] write(1, "executing program\n", 18) = 18 [pid 6720] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6719] +++ exited with 0 +++ [pid 6718] <... bpf resumed>) = 5 [pid 6717] +++ exited with 0 +++ [pid 6716] <... bpf resumed>) = 5 [pid 6720] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6716] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6720] <... bpf resumed>) = 4 [pid 6718] exit_group(0) = ? [pid 6716] <... exit_group resumed>) = ? [pid 6720] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6721 attached ./strace-static-x86_64: Process 6722 attached [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6722 [pid 6722] set_robust_list(0x55556540f660, 24 [pid 6721] set_robust_list(0x55556540f660, 24 [pid 6718] +++ exited with 0 +++ [pid 6716] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6721 [pid 6722] <... set_robust_list resumed>) = 0 [pid 6721] <... set_robust_list resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6721] <... prctl resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6722] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6723 attached [pid 6721] setpgid(0, 0 [pid 6722] setpgid(0, 0 [pid 6723] set_robust_list(0x55556540f660, 24 [pid 6721] <... setpgid resumed>) = 0 [pid 6723] <... set_robust_list resumed>) = 0 [pid 6721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6722] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6723 [pid 6723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6721] <... openat resumed>) = 3 [pid 6723] setpgid(0, 0./strace-static-x86_64: Process 6724 attached ) = 0 [pid 6723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6721] write(3, "1000", 4) = 4 [pid 6722] <... openat resumed>) = 3 [pid 6724] set_robust_list(0x55556540f660, 24 [pid 6721] close(3 [pid 6724] <... set_robust_list resumed>) = 0 [pid 6723] <... openat resumed>) = 3 [pid 6724] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6721] <... close resumed>) = 0 [pid 6723] write(3, "1000", 4 executing program [pid 6722] write(3, "1000", 4 [pid 6721] write(1, "executing program\n", 18 [pid 6723] <... write resumed>) = 4 [pid 6721] <... write resumed>) = 18 [pid 6723] close(3 [pid 6721] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6724] <... prctl resumed>) = 0 [pid 6723] <... close resumed>) = 0 [pid 6722] <... write resumed>) = 4 [pid 6724] setpgid(0, 0 [pid 6723] write(1, "executing program\n", 18 [pid 6722] close(3 [pid 6721] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6724 [pid 6724] <... setpgid resumed>) = 0 [pid 6723] <... write resumed>) = 18 executing program [pid 6723] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6721] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6724] <... openat resumed>) = 3 [pid 6722] <... close resumed>) = 0 [pid 6720] <... bpf resumed>) = 5 [pid 6722] write(1, "executing program\n", 18 [pid 6724] write(3, "1000", 4 [pid 6723] <... bpf resumed>) = 3 [pid 6722] <... write resumed>) = 18 [pid 6721] <... bpf resumed>) = 4 [pid 6720] exit_group(0 [pid 6724] <... write resumed>) = 4 [pid 6723] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6724] close(3 [pid 6723] <... bpf resumed>) = 4 [pid 6722] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6720] <... exit_group resumed>) = ? [pid 6724] <... close resumed>) = 0 executing program [pid 6724] write(1, "executing program\n", 18 [pid 6723] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6722] <... bpf resumed>) = 3 [pid 6721] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6720] +++ exited with 0 +++ [pid 6724] <... write resumed>) = 18 [pid 6722] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6724] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6722] <... bpf resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6724] <... bpf resumed>) = 3 [pid 6724] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6722] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6724] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6725 attached [pid 6724] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6721] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6725 [pid 6725] set_robust_list(0x55556540f660, 24 [pid 6721] exit_group(0) = ? [pid 6725] <... set_robust_list resumed>) = 0 [pid 6723] <... bpf resumed>) = 5 [pid 6722] <... bpf resumed>) = 5 [pid 6721] +++ exited with 0 +++ [pid 6724] <... bpf resumed>) = 5 [pid 6725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6724] exit_group(0 [pid 6723] exit_group(0 [pid 6722] exit_group(0 [pid 6725] <... prctl resumed>) = 0 [pid 6722] <... exit_group resumed>) = ? [pid 6723] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6724] <... exit_group resumed>) = ? [pid 6724] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6725] setpgid(0, 0./strace-static-x86_64: Process 6726 attached ) = 0 [pid 6726] set_robust_list(0x55556540f660, 24 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6724, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6726 [pid 6726] <... set_robust_list resumed>) = 0 [pid 6725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6723] +++ exited with 0 +++ [pid 6722] +++ exited with 0 +++ [pid 6726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6725] <... openat resumed>) = 3 [pid 6726] <... prctl resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6726] setpgid(0, 0 [pid 6725] write(3, "1000", 4 [pid 6726] <... setpgid resumed>) = 0 [pid 6726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6726] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6727 attached [pid 6725] <... write resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6727] set_robust_list(0x55556540f660, 24 [pid 6726] write(3, "1000", 4 [pid 6725] close(3./strace-static-x86_64: Process 6728 attached [pid 6726] <... write resumed>) = 4 [pid 6725] <... close resumed>) = 0 [pid 6727] <... set_robust_list resumed>) = 0 [pid 6726] close(3 [pid 6725] write(1, "executing program\n", 18executing program [pid 6727] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6726] <... close resumed>) = 0 [pid 6725] <... write resumed>) = 18 [pid 6726] write(1, "executing program\n", 18 [pid 6725] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6728] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6727 [pid 6728] <... set_robust_list resumed>) = 0 [pid 6728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6727] <... prctl resumed>) = 0 [pid 6726] <... write resumed>) = 18 [pid 6725] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6728 [pid 6728] <... prctl resumed>) = 0 [pid 6727] setpgid(0, 0 [pid 6726] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6725] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6728] setpgid(0, 0 [pid 6727] <... setpgid resumed>) = 0 [pid 6726] <... bpf resumed>) = 3 [pid 6725] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6728] <... setpgid resumed>) = 0 [pid 6727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6726] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6729 attached [pid 6728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6727] <... openat resumed>) = 3 [pid 6726] <... bpf resumed>) = 4 [pid 6725] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6727] write(3, "1000", 4) = 4 executing program [pid 6727] close(3) = 0 [pid 6727] write(1, "executing program\n", 18) = 18 [pid 6727] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6729] set_robust_list(0x55556540f660, 24 [pid 6728] <... openat resumed>) = 3 [pid 6729] <... set_robust_list resumed>) = 0 [pid 6728] write(3, "1000", 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6729 [pid 6729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6727] <... bpf resumed>) = 3 [pid 6726] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6727] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6729] <... prctl resumed>) = 0 [pid 6728] <... write resumed>) = 4 [pid 6727] <... bpf resumed>) = 4 [pid 6729] setpgid(0, 0 [pid 6728] close(3 [pid 6727] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6728] <... close resumed>) = 0 [pid 6729] <... setpgid resumed>) = 0 [pid 6726] <... bpf resumed>) = 5 [pid 6728] write(1, "executing program\n", 18 [pid 6725] <... bpf resumed>) = 5 [pid 6728] <... write resumed>) = 18 executing program [pid 6729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6728] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6727] <... bpf resumed>) = 5 [pid 6726] exit_group(0 [pid 6725] exit_group(0 [pid 6727] exit_group(0 [pid 6726] <... exit_group resumed>) = ? [pid 6725] <... exit_group resumed>) = ? [pid 6729] <... openat resumed>) = 3 [pid 6728] <... bpf resumed>) = 3 [pid 6727] <... exit_group resumed>) = ? [pid 6726] +++ exited with 0 +++ [pid 6729] write(3, "1000", 4 [pid 6728] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6729] <... write resumed>) = 4 [pid 6729] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6729] <... close resumed>) = 0 [pid 6729] write(1, "executing program\n", 18executing program ) = 18 [pid 6729] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6728] <... bpf resumed>) = 4 [pid 6729] <... bpf resumed>) = 3 [pid 6728] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6729] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6729] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6729] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6730 attached [pid 6727] +++ exited with 0 +++ [pid 6725] +++ exited with 0 +++ [pid 6730] set_robust_list(0x55556540f660, 24 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6730 [pid 6730] <... set_robust_list resumed>) = 0 [pid 6730] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6731 attached [pid 6730] <... prctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6730] setpgid(0, 0./strace-static-x86_64: Process 6732 attached ) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6731 [pid 6732] set_robust_list(0x55556540f660, 24 [pid 6731] set_robust_list(0x55556540f660, 24 [pid 6730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6729] <... bpf resumed>) = 5 [pid 6728] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6732 [pid 6732] <... set_robust_list resumed>) = 0 [pid 6731] <... set_robust_list resumed>) = 0 [pid 6728] exit_group(0 [pid 6732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6730] <... openat resumed>) = 3 [pid 6729] exit_group(0 [pid 6728] <... exit_group resumed>) = ? [pid 6732] <... prctl resumed>) = 0 [pid 6731] <... prctl resumed>) = 0 [pid 6730] write(3, "1000", 4 [pid 6729] <... exit_group resumed>) = ? [pid 6730] <... write resumed>) = 4 [pid 6731] setpgid(0, 0 [pid 6732] setpgid(0, 0) = 0 [pid 6731] <... setpgid resumed>) = 0 [pid 6732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6732] <... openat resumed>) = 3 [pid 6731] <... openat resumed>) = 3 [pid 6730] close(3 [pid 6732] write(3, "1000", 4) = 4 [pid 6732] close(3) = 0 [pid 6731] write(3, "1000", 4 [pid 6730] <... close resumed>) = 0 executing program executing program [pid 6732] write(1, "executing program\n", 18 [pid 6731] <... write resumed>) = 4 [pid 6730] write(1, "executing program\n", 18 [pid 6732] <... write resumed>) = 18 [pid 6731] close(3 [pid 6730] <... write resumed>) = 18 [pid 6732] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6731] <... close resumed>) = 0 [pid 6730] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6728] +++ exited with 0 +++ [pid 6729] +++ exited with 0 +++ [pid 6732] <... bpf resumed>) = 3 executing program [pid 6731] write(1, "executing program\n", 18 [pid 6730] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6732] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6731] <... write resumed>) = 18 [pid 6730] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6732] <... bpf resumed>) = 4 [pid 6731] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6730] <... bpf resumed>) = 4 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6731] <... bpf resumed>) = 3 [pid 6731] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6732] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6731] <... bpf resumed>) = 4 [pid 6730] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6733 attached [pid 6731] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6733] set_robust_list(0x55556540f660, 24) = 0 [pid 6733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6733 [pid 6733] <... prctl resumed>) = 0 [pid 6733] setpgid(0, 0) = 0 [pid 6733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6734 attached [pid 6732] <... bpf resumed>) = 5 [pid 6731] <... bpf resumed>) = 5 [pid 6730] <... bpf resumed>) = 5 [pid 6734] set_robust_list(0x55556540f660, 24 [pid 6733] <... openat resumed>) = 3 [pid 6732] exit_group(0 [pid 6731] exit_group(0 [pid 6730] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6734 [pid 6730] <... exit_group resumed>) = ? [pid 6734] <... set_robust_list resumed>) = 0 [pid 6733] write(3, "1000", 4 [pid 6732] <... exit_group resumed>) = ? [pid 6731] <... exit_group resumed>) = ? [pid 6734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6733] <... write resumed>) = 4 [pid 6730] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6730, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6734] <... prctl resumed>) = 0 [pid 6733] close(3executing program ) = 0 [pid 6734] setpgid(0, 0 [pid 6733] write(1, "executing program\n", 18 [pid 6734] <... setpgid resumed>) = 0 [pid 6733] <... write resumed>) = 18 [pid 6734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6733] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6734] <... openat resumed>) = 3 [pid 6734] write(3, "1000", 4 [pid 6733] <... bpf resumed>) = 3 [pid 6734] <... write resumed>) = 4 [pid 6734] close(3) = 0 executing program [pid 6733] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6734] write(1, "executing program\n", 18) = 18 [pid 6734] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6733] <... bpf resumed>) = 4 [pid 6734] <... bpf resumed>) = 3 [pid 6734] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6733] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6732] +++ exited with 0 +++ [pid 6731] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6735 attached [pid 6734] <... bpf resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6735] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6735 [pid 6735] <... set_robust_list resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6735] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6736 attached ) = 0 [pid 6735] setpgid(0, 0 [pid 6736] set_robust_list(0x55556540f660, 24 [pid 6734] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6736 [pid 6736] <... set_robust_list resumed>) = 0 [pid 6735] <... setpgid resumed>) = 0 [pid 6734] <... bpf resumed>) = 5 [pid 6733] <... bpf resumed>) = 5 [pid 6736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6734] exit_group(0 [pid 6736] <... prctl resumed>) = 0 [pid 6735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6734] <... exit_group resumed>) = ? [pid 6736] setpgid(0, 0 [pid 6735] <... openat resumed>) = 3 [pid 6734] +++ exited with 0 +++ [pid 6733] exit_group(0 [pid 6736] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6734, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6735] write(3, "1000", 4 [pid 6733] <... exit_group resumed>) = ? [pid 5849] <... restart_syscall resumed>) = 0 [pid 6735] <... write resumed>) = 4 [pid 6736] <... openat resumed>) = 3 [pid 6735] close(3 [pid 6733] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6737 attached [pid 6736] write(3, "1000", 4 [pid 6735] <... close resumed>) = 0 ./strace-static-x86_64: Process 6738 attached [pid 6737] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6737 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6737] <... set_robust_list resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6738] set_robust_list(0x55556540f660, 24 [pid 6737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6736] <... write resumed>) = 4 [pid 6735] write(1, "executing program\n", 18executing program [pid 6738] <... set_robust_list resumed>) = 0 [pid 6736] close(3 [pid 6735] <... write resumed>) = 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6738 [pid 6737] <... prctl resumed>) = 0 [pid 6736] <... close resumed>) = 0 [pid 6737] setpgid(0, 0 [pid 6735] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6738] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 6737] <... setpgid resumed>) = 0 [pid 6736] write(1, "executing program\n", 18 [pid 6738] <... prctl resumed>) = 0 [pid 6737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6735] <... bpf resumed>) = 3 [pid 6738] setpgid(0, 0 [pid 6736] <... write resumed>) = 18 [pid 6738] <... setpgid resumed>) = 0 [pid 6738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6737] <... openat resumed>) = 3 [pid 6738] <... openat resumed>) = 3 [pid 6737] write(3, "1000", 4 [pid 6736] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6735] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6738] write(3, "1000", 4) = 4 [pid 6737] <... write resumed>) = 4 [pid 6736] <... bpf resumed>) = 3 [pid 6735] <... bpf resumed>) = 4 [pid 6737] close(3 [pid 6736] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6738] close(3 [pid 6737] <... close resumed>) = 0 [pid 6736] <... bpf resumed>) = 4 [pid 6735] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6738] <... close resumed>) = 0 executing program executing program [pid 6737] write(1, "executing program\n", 18 [pid 6738] write(1, "executing program\n", 18) = 18 [pid 6737] <... write resumed>) = 18 [pid 6736] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6735] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6738] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6737] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6739 attached [pid 6738] <... bpf resumed>) = 3 [pid 6737] <... bpf resumed>) = 3 [pid 6736] <... bpf resumed>) = 5 [pid 6735] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6739 [pid 6739] set_robust_list(0x55556540f660, 24 [pid 6738] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6737] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6735] <... exit_group resumed>) = ? [pid 6739] <... set_robust_list resumed>) = 0 [pid 6739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6738] <... bpf resumed>) = 4 [pid 6737] <... bpf resumed>) = 4 [pid 6736] exit_group(0 [pid 6739] <... prctl resumed>) = 0 [pid 6736] <... exit_group resumed>) = ? [pid 6739] setpgid(0, 0 [pid 6738] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6739] <... setpgid resumed>) = 0 [pid 6737] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6739] write(3, "1000", 4) = 4 [pid 6739] close(3) = 0 [pid 6739] write(1, "executing program\n", 18executing program ) = 18 [pid 6739] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6739] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6738] <... bpf resumed>) = 5 [pid 6737] <... bpf resumed>) = 5 [pid 6736] +++ exited with 0 +++ [pid 6735] +++ exited with 0 +++ [pid 6738] exit_group(0 [pid 6739] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6738] <... exit_group resumed>) = ? [pid 6737] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6739] <... bpf resumed>) = 5 [pid 6738] +++ exited with 0 +++ [pid 6737] <... exit_group resumed>) = ? [pid 6739] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6740 attached [pid 6739] <... exit_group resumed>) = ? [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6740] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6741 attached ) = 0 [pid 6740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6741 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6740 [pid 6741] set_robust_list(0x55556540f660, 24) = 0 [pid 6740] <... prctl resumed>) = 0 [pid 6741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6740] setpgid(0, 0) = 0 [pid 6741] <... prctl resumed>) = 0 [pid 6740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6741] setpgid(0, 0 [pid 6740] <... openat resumed>) = 3 [pid 6741] <... setpgid resumed>) = 0 [pid 6740] write(3, "1000", 4) = 4 [pid 6741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6740] close(3) = 0 [pid 6741] <... openat resumed>) = 3 [pid 6740] write(1, "executing program\n", 18executing program [pid 6739] +++ exited with 0 +++ [pid 6737] +++ exited with 0 +++ [pid 6740] <... write resumed>) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6740] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6741] write(3, "1000", 4) = 4 [pid 6740] <... bpf resumed>) = 3 [pid 6741] close(3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6741] <... close resumed>) = 0 [pid 6740] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6741] write(1, "executing program\n", 18 [pid 6740] <... bpf resumed>) = 4 [pid 6741] <... write resumed>) = 18 [pid 6741] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6743 attached ./strace-static-x86_64: Process 6742 attached ) = 3 [pid 6740] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6743 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6742 [pid 6743] set_robust_list(0x55556540f660, 24 [pid 6742] set_robust_list(0x55556540f660, 24 [pid 6743] <... set_robust_list resumed>) = 0 [pid 6742] <... set_robust_list resumed>) = 0 [pid 6741] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6740] <... bpf resumed>) = 5 [pid 6743] <... prctl resumed>) = 0 [pid 6742] <... prctl resumed>) = 0 [pid 6741] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6742] setpgid(0, 0 [pid 6743] setpgid(0, 0 [pid 6742] <... setpgid resumed>) = 0 [pid 6741] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6740] exit_group(0./strace-static-x86_64: Process 6744 attached [pid 6743] <... setpgid resumed>) = 0 [pid 6742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6742] <... openat resumed>) = 3 [pid 6741] <... bpf resumed>) = 5 [pid 6740] <... exit_group resumed>) = ? [pid 6744] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6744 [pid 6743] <... openat resumed>) = 3 [pid 6744] <... set_robust_list resumed>) = 0 [pid 6742] write(3, "1000", 4 [pid 6741] exit_group(0 [pid 6744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6743] write(3, "1000", 4 [pid 6742] <... write resumed>) = 4 [pid 6741] <... exit_group resumed>) = ? [pid 6744] <... prctl resumed>) = 0 [pid 6743] <... write resumed>) = 4 [pid 6742] close(3 [pid 6744] setpgid(0, 0 [pid 6743] close(3 [pid 6740] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program executing program [pid 6743] <... close resumed>) = 0 [pid 6742] <... close resumed>) = 0 [pid 6744] <... setpgid resumed>) = 0 [pid 6743] write(1, "executing program\n", 18 [pid 6742] write(1, "executing program\n", 18 [pid 6744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6743] <... write resumed>) = 18 [pid 6742] <... write resumed>) = 18 [pid 6741] +++ exited with 0 +++ [pid 6744] <... openat resumed>) = 3 [pid 6743] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6742] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6744] write(3, "1000", 4 [pid 6743] <... bpf resumed>) = 3 [pid 6742] <... bpf resumed>) = 3 [pid 6744] <... write resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6744] close(3 [pid 6742] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6744] <... close resumed>) = 0 [pid 6743] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6744] write(1, "executing program\n", 18 [pid 6743] <... bpf resumed>) = 4 [pid 6742] <... bpf resumed>) = 4 [pid 6744] <... write resumed>) = 18 [pid 6744] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6744] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6743] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6744] <... bpf resumed>) = 4 [pid 6742] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6744] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6743] <... bpf resumed>) = 5 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6742] <... bpf resumed>) = 5 [pid 6744] <... bpf resumed>) = 5 [pid 6743] exit_group(0 [pid 6742] exit_group(0 [pid 6744] exit_group(0 [pid 6743] <... exit_group resumed>) = ? [pid 6742] <... exit_group resumed>) = ? [pid 6744] <... exit_group resumed>) = ? [pid 6743] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6745 attached [pid 5847] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6746 attached [pid 6745] set_robust_list(0x55556540f660, 24 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6745 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6746 [pid 6746] set_robust_list(0x55556540f660, 24 [pid 6745] <... set_robust_list resumed>) = 0 [pid 6745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6746] <... set_robust_list resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6746] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6747 attached [pid 6747] set_robust_list(0x55556540f660, 24 [pid 6746] <... prctl resumed>) = 0 [pid 6745] <... prctl resumed>) = 0 [pid 6744] +++ exited with 0 +++ [pid 6742] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6747 [pid 6746] setpgid(0, 0 [pid 6747] <... set_robust_list resumed>) = 0 [pid 6746] <... setpgid resumed>) = 0 [pid 6745] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6747] <... prctl resumed>) = 0 [pid 6745] <... setpgid resumed>) = 0 [pid 6747] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6747] <... setpgid resumed>) = 0 [pid 6746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6746] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6748 attached [pid 6747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 6747] write(3, "1000", 4) = 4 [pid 6747] close(3 [pid 6748] set_robust_list(0x55556540f660, 24 [pid 6747] <... close resumed>) = 0 [pid 6748] <... set_robust_list resumed>) = 0 [pid 6747] write(1, "executing program\n", 18 [pid 6748] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6747] <... write resumed>) = 18 [pid 6747] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6746] write(3, "1000", 4 [pid 6745] <... openat resumed>) = 3 [pid 6748] <... prctl resumed>) = 0 [pid 6747] <... bpf resumed>) = 3 [pid 6746] <... write resumed>) = 4 ./strace-static-x86_64: Process 6749 attached [pid 6748] setpgid(0, 0 [pid 6747] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6746] close(3 [pid 6745] write(3, "1000", 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6748 [pid 6749] set_robust_list(0x55556540f660, 24 [pid 6748] <... setpgid resumed>) = 0 [pid 6747] <... bpf resumed>) = 4 [pid 6746] <... close resumed>) = 0 [pid 6749] <... set_robust_list resumed>) = 0 executing program [pid 6748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6747] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6746] write(1, "executing program\n", 18 [pid 6745] <... write resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6749 [pid 6749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6748] <... openat resumed>) = 3 [pid 6746] <... write resumed>) = 18 [pid 6745] close(3 [pid 6749] <... prctl resumed>) = 0 [pid 6748] write(3, "1000", 4 [pid 6746] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6745] <... close resumed>) = 0 [pid 6749] setpgid(0, 0 [pid 6748] <... write resumed>) = 4 [pid 6749] <... setpgid resumed>) = 0 executing program [pid 6748] close(3 [pid 6746] <... bpf resumed>) = 3 [pid 6745] write(1, "executing program\n", 18 [pid 6749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6748] <... close resumed>) = 0 [pid 6747] <... bpf resumed>) = 5 [pid 6745] <... write resumed>) = 18 [pid 6749] <... openat resumed>) = 3 executing program [pid 6748] write(1, "executing program\n", 18 [pid 6747] exit_group(0 [pid 6746] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6745] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6749] write(3, "1000", 4 [pid 6748] <... write resumed>) = 18 [pid 6747] <... exit_group resumed>) = ? [pid 6749] <... write resumed>) = 4 [pid 6748] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6746] <... bpf resumed>) = 4 [pid 6745] <... bpf resumed>) = 3 [pid 6749] close(3 [pid 6747] +++ exited with 0 +++ [pid 6749] <... close resumed>) = 0 [pid 6748] <... bpf resumed>) = 3 [pid 6745] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6749] write(1, "executing program\n", 18 [pid 6748] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6746] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6745] <... bpf resumed>) = 4 [pid 6749] <... write resumed>) = 18 [pid 6748] <... bpf resumed>) = 4 [pid 6749] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6748] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6745] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6749] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6749] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6746] <... bpf resumed>) = 5 [pid 6749] <... bpf resumed>) = 5 [pid 6748] <... bpf resumed>) = 5 [pid 6749] exit_group(0 [pid 6748] exit_group(0 [pid 6746] exit_group(0 [pid 6745] <... bpf resumed>) = 5 [pid 6749] <... exit_group resumed>) = ? [pid 6746] <... exit_group resumed>) = ? [pid 6745] exit_group(0 [pid 6749] +++ exited with 0 +++ [pid 6748] <... exit_group resumed>) = ? [pid 6746] +++ exited with 0 +++ [pid 6745] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6750 attached [pid 6750] set_robust_list(0x55556540f660, 24) = 0 [pid 6750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6750 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6746, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6750] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6751 attached [pid 6750] <... setpgid resumed>) = 0 [pid 6750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6752 attached [pid 6751] set_robust_list(0x55556540f660, 24 [pid 6750] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6751 [pid 6752] set_robust_list(0x55556540f660, 24 [pid 6751] <... set_robust_list resumed>) = 0 [pid 6748] +++ exited with 0 +++ [pid 6750] write(3, "1000", 4) = 4 [pid 6751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6752] <... set_robust_list resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6752 [pid 6751] <... prctl resumed>) = 0 [pid 6750] close(3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6751] setpgid(0, 0 [pid 6750] <... close resumed>) = 0 [pid 6752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6750] write(1, "executing program\n", 18executing program [pid 6752] <... prctl resumed>) = 0 [pid 6751] <... setpgid resumed>) = 0 [pid 6750] <... write resumed>) = 18 [pid 6745] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 6752] setpgid(0, 0 [pid 6751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6750] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6751] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6752] <... setpgid resumed>) = 0 [pid 6750] <... bpf resumed>) = 3 [pid 6752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6751] write(3, "1000", 4 [pid 6750] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6752] <... openat resumed>) = 3 [pid 6751] <... write resumed>) = 4 [pid 6751] close(3) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6753 attached [pid 6752] write(3, "1000", 4 [pid 6751] write(1, "executing program\n", 18executing program [pid 6750] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6752] <... write resumed>) = 4 [pid 6751] <... write resumed>) = 18 [pid 6752] close(3 [pid 6753] set_robust_list(0x55556540f660, 24 [pid 6751] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6753] <... set_robust_list resumed>) = 0 [pid 6752] <... close resumed>) = 0 [pid 6750] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6752] write(1, "executing program\n", 18 [pid 6751] <... bpf resumed>) = 3 [pid 6752] <... write resumed>) = 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6753 ./strace-static-x86_64: Process 6754 attached [pid 6754] set_robust_list(0x55556540f660, 24 [pid 6753] <... prctl resumed>) = 0 [pid 6752] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6751] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6754] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6754 [pid 6754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6753] setpgid(0, 0 [pid 6752] <... bpf resumed>) = 3 [pid 6751] <... bpf resumed>) = 4 [pid 6750] <... bpf resumed>) = 5 [pid 6753] <... setpgid resumed>) = 0 [pid 6753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6754] <... prctl resumed>) = 0 [pid 6752] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6754] setpgid(0, 0 [pid 6753] <... openat resumed>) = 3 [pid 6751] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6750] exit_group(0 [pid 6754] <... setpgid resumed>) = 0 [pid 6753] write(3, "1000", 4 [pid 6752] <... bpf resumed>) = 4 [pid 6751] <... bpf resumed>) = 5 [pid 6753] <... write resumed>) = 4 [pid 6751] exit_group(0 [pid 6753] close(3) = 0 [pid 6751] <... exit_group resumed>) = ? [pid 6754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6753] write(1, "executing program\n", 18executing program [pid 6752] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6751] +++ exited with 0 +++ [pid 6750] <... exit_group resumed>) = ? [pid 6753] <... write resumed>) = 18 [pid 6753] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6754] <... openat resumed>) = 3 [pid 6753] <... bpf resumed>) = 3 [pid 6752] <... bpf resumed>) = 5 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6754] write(3, "1000", 4 [pid 6752] exit_group(0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6754] <... write resumed>) = 4 [pid 6753] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6754] close(3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6754] <... close resumed>) = 0 [pid 6753] <... bpf resumed>) = 4 [pid 6752] <... exit_group resumed>) = ? executing program [pid 6754] write(1, "executing program\n", 18) = 18 [pid 6754] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6750] +++ exited with 0 +++ [pid 6754] <... bpf resumed>) = 3 [pid 6754] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6752] +++ exited with 0 +++ ./strace-static-x86_64: Process 6755 attached [pid 6755] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6756 attached ) = 0 [pid 6754] <... bpf resumed>) = 4 [pid 6753] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6755 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6756] set_robust_list(0x55556540f660, 24 [pid 6755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6754] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6756 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6756] <... set_robust_list resumed>) = 0 [pid 6755] <... prctl resumed>) = 0 [pid 6756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6755] setpgid(0, 0 [pid 6756] <... prctl resumed>) = 0 [pid 6755] <... setpgid resumed>) = 0 [pid 6754] <... bpf resumed>) = 5 [pid 6753] <... bpf resumed>) = 5 [pid 6756] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6756] <... setpgid resumed>) = 0 [pid 6755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6754] exit_group(0 [pid 6756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6754] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6757 attached [pid 6753] exit_group(0 [pid 6757] set_robust_list(0x55556540f660, 24) = 0 [pid 6753] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6757 [pid 6757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6756] <... openat resumed>) = 3 [pid 6755] <... openat resumed>) = 3 [pid 6754] +++ exited with 0 +++ [pid 6755] write(3, "1000", 4 [pid 6756] write(3, "1000", 4 [pid 6755] <... write resumed>) = 4 [pid 6756] <... write resumed>) = 4 [pid 6755] close(3 [pid 6756] close(3 [pid 6755] <... close resumed>) = 0 executing program [pid 6756] <... close resumed>) = 0 [pid 6755] write(1, "executing program\n", 18 executing program [pid 6756] write(1, "executing program\n", 18 [pid 6755] <... write resumed>) = 18 [pid 6756] <... write resumed>) = 18 [pid 6755] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6757] <... prctl resumed>) = 0 [pid 6756] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6755] <... bpf resumed>) = 3 [pid 6753] +++ exited with 0 +++ [pid 6757] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6757] <... setpgid resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6756] <... bpf resumed>) = 3 [pid 6755] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6757] <... openat resumed>) = 3 [pid 6756] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6755] <... bpf resumed>) = 4 [pid 6757] write(3, "1000", 4 [pid 6756] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6753, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6757] <... write resumed>) = 4 [pid 6755] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6757] close(3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6757] <... close resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6756] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6757] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6758 attached [pid 6757] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6759 attached [pid 6759] set_robust_list(0x55556540f660, 24 [pid 6758] set_robust_list(0x55556540f660, 24 [pid 6757] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6758 [pid 6759] <... set_robust_list resumed>) = 0 [pid 6758] <... set_robust_list resumed>) = 0 [pid 6757] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6759 [pid 6759] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6758] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6757] <... bpf resumed>) = 4 [pid 6756] <... bpf resumed>) = 5 [pid 6755] <... bpf resumed>) = 5 [pid 6758] <... prctl resumed>) = 0 [pid 6759] <... prctl resumed>) = 0 [pid 6758] setpgid(0, 0 [pid 6755] exit_group(0 [pid 6759] setpgid(0, 0 [pid 6758] <... setpgid resumed>) = 0 [pid 6757] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6756] exit_group(0 [pid 6759] <... setpgid resumed>) = 0 [pid 6758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6757] <... bpf resumed>) = 5 [pid 6755] <... exit_group resumed>) = ? [pid 6758] <... openat resumed>) = 3 [pid 6757] exit_group(0 [pid 6756] <... exit_group resumed>) = ? [pid 6759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6758] write(3, "1000", 4 [pid 6757] <... exit_group resumed>) = ? [pid 6755] +++ exited with 0 +++ [pid 6759] <... openat resumed>) = 3 [pid 6758] <... write resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6759] write(3, "1000", 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6759] <... write resumed>) = 4 [pid 6758] close(3) = 0 executing program [pid 6758] write(1, "executing program\n", 18) = 18 [pid 6759] close(3executing program [pid 6758] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6759] <... close resumed>) = 0 [pid 6759] write(1, "executing program\n", 18) = 18 [pid 6758] <... bpf resumed>) = 3 [pid 6759] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6758] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6759] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6758] <... bpf resumed>) = 4 [pid 6757] +++ exited with 0 +++ [pid 6756] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6759] <... bpf resumed>) = 4 [pid 6759] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6758] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6760 attached [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6760 ./strace-static-x86_64: Process 6762 attached ./strace-static-x86_64: Process 6761 attached [pid 6760] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6761 [pid 6760] <... set_robust_list resumed>) = 0 [pid 6761] set_robust_list(0x55556540f660, 24 [pid 6762] set_robust_list(0x55556540f660, 24) = 0 [pid 6762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6761] <... set_robust_list resumed>) = 0 [pid 6760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6762] <... prctl resumed>) = 0 [pid 6761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6760] <... prctl resumed>) = 0 [pid 6759] <... bpf resumed>) = 5 [pid 6758] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6762 [pid 6760] setpgid(0, 0 [pid 6762] setpgid(0, 0 [pid 6761] <... prctl resumed>) = 0 [pid 6760] <... setpgid resumed>) = 0 [pid 6759] exit_group(0 [pid 6758] exit_group(0 [pid 6762] <... setpgid resumed>) = 0 [pid 6759] <... exit_group resumed>) = ? [pid 6762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6761] setpgid(0, 0 [pid 6760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6759] +++ exited with 0 +++ [pid 6758] <... exit_group resumed>) = ? [pid 6761] <... setpgid resumed>) = 0 [pid 6762] <... openat resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6762] write(3, "1000", 4) = 4 [pid 6761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6760] <... openat resumed>) = 3 [pid 6758] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 6762] close(3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6758, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6762] <... close resumed>) = 0 [pid 6761] <... openat resumed>) = 3 [pid 6760] write(3, "1000", 4 [pid 6762] write(1, "executing program\n", 18executing program ) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6763 attached [pid 6762] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6761] write(3, "1000", 4 [pid 6760] <... write resumed>) = 4 [pid 6763] set_robust_list(0x55556540f660, 24 [pid 6762] <... bpf resumed>) = 3 [pid 6761] <... write resumed>) = 4 [pid 6760] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6762] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6764 attached [pid 6761] close(3 [pid 6760] <... close resumed>) = 0 [pid 6761] <... close resumed>) = 0 executing program [pid 6760] write(1, "executing program\n", 18 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6763 [pid 6764] set_robust_list(0x55556540f660, 24 [pid 6763] <... set_robust_list resumed>) = 0 [pid 6762] <... bpf resumed>) = 4 [pid 6761] write(1, "executing program\n", 18 [pid 6760] <... write resumed>) = 18 [pid 6764] <... set_robust_list resumed>) = 0 [pid 6761] <... write resumed>) = 18 executing program [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6764 [pid 6764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6760] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6763] <... prctl resumed>) = 0 [pid 6761] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6760] <... bpf resumed>) = 3 [pid 6764] <... prctl resumed>) = 0 [pid 6763] setpgid(0, 0 [pid 6762] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6764] setpgid(0, 0 [pid 6763] <... setpgid resumed>) = 0 [pid 6761] <... bpf resumed>) = 3 [pid 6760] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6764] <... setpgid resumed>) = 0 [pid 6763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6762] <... bpf resumed>) = 5 [pid 6761] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6762] exit_group(0 [pid 6760] <... bpf resumed>) = 4 [pid 6764] <... openat resumed>) = 3 [pid 6764] write(3, "1000", 4 [pid 6762] <... exit_group resumed>) = ? [pid 6764] <... write resumed>) = 4 [pid 6763] <... openat resumed>) = 3 [pid 6762] +++ exited with 0 +++ [pid 6761] <... bpf resumed>) = 4 [pid 6760] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6764] close(3 executing program [pid 6763] write(3, "1000", 4 [pid 6764] <... close resumed>) = 0 [pid 6764] write(1, "executing program\n", 18) = 18 [pid 6764] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6763] <... write resumed>) = 4 [pid 6761] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6762, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6763] close(3executing program [pid 6764] <... bpf resumed>) = 3 [pid 6763] <... close resumed>) = 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6763] write(1, "executing program\n", 18 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6763] <... write resumed>) = 18 [pid 6764] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6763] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6764] <... bpf resumed>) = 4 [pid 6764] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6763] <... bpf resumed>) = 3 [pid 6761] <... bpf resumed>) = 5 [pid 6760] <... bpf resumed>) = 5 [pid 6764] <... bpf resumed>) = 5 [pid 6763] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6761] exit_group(0 [pid 6760] exit_group(0 [pid 6764] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6764] <... exit_group resumed>) = ? [pid 6760] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6765 attached [pid 6764] +++ exited with 0 +++ [pid 6763] <... bpf resumed>) = 4 [pid 6761] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6763] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6765] set_robust_list(0x55556540f660, 24 [pid 6761] +++ exited with 0 +++ [pid 6760] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6765 [pid 6765] <... set_robust_list resumed>) = 0 [pid 6763] <... bpf resumed>) = 5 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6763] exit_group(0 [pid 6765] <... prctl resumed>) = 0 [pid 6763] <... exit_group resumed>) = ? [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6766 attached [pid 6765] setpgid(0, 0 [pid 6763] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6765] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6763, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6768 attached ./strace-static-x86_64: Process 6767 attached [pid 6766] set_robust_list(0x55556540f660, 24 [pid 6765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6768] set_robust_list(0x55556540f660, 24 [pid 6767] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6766 [pid 6768] <... set_robust_list resumed>) = 0 [pid 6768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6767] <... set_robust_list resumed>) = 0 [pid 6766] <... set_robust_list resumed>) = 0 [pid 6768] <... prctl resumed>) = 0 [pid 6767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6765] <... openat resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6768 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6767 [pid 6768] setpgid(0, 0 [pid 6767] <... prctl resumed>) = 0 [pid 6766] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6765] write(3, "1000", 4 [pid 6766] <... prctl resumed>) = 0 [pid 6768] <... setpgid resumed>) = 0 [pid 6767] setpgid(0, 0 [pid 6768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6767] <... setpgid resumed>) = 0 [pid 6766] setpgid(0, 0 [pid 6765] <... write resumed>) = 4 [pid 6766] <... setpgid resumed>) = 0 [pid 6765] close(3 [pid 6766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6765] <... close resumed>) = 0 executing program [pid 6768] <... openat resumed>) = 3 [pid 6767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6765] write(1, "executing program\n", 18 [pid 6768] write(3, "1000", 4 [pid 6767] <... openat resumed>) = 3 [pid 6766] <... openat resumed>) = 3 [pid 6765] <... write resumed>) = 18 [pid 6766] write(3, "1000", 4 [pid 6768] <... write resumed>) = 4 [pid 6765] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6768] close(3 [pid 6766] <... write resumed>) = 4 [pid 6768] <... close resumed>) = 0 [pid 6767] write(3, "1000", 4 [pid 6766] close(3executing program [pid 6768] write(1, "executing program\n", 18 [pid 6767] <... write resumed>) = 4 [pid 6765] <... bpf resumed>) = 3 [pid 6768] <... write resumed>) = 18 [pid 6767] close(3 [pid 6766] <... close resumed>) = 0 [pid 6768] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6767] <... close resumed>) = 0 [pid 6768] <... bpf resumed>) = 3 [pid 6767] write(1, "executing program\n", 18 [pid 6766] write(1, "executing program\n", 18 executing program executing program [pid 6765] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6768] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6767] <... write resumed>) = 18 [pid 6766] <... write resumed>) = 18 [pid 6767] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6766] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6768] <... bpf resumed>) = 4 [pid 6767] <... bpf resumed>) = 3 [pid 6766] <... bpf resumed>) = 3 [pid 6765] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6768] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6767] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6766] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6767] <... bpf resumed>) = 4 [pid 6766] <... bpf resumed>) = 4 [pid 6765] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6767] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6766] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6768] <... bpf resumed>) = 5 [pid 6767] <... bpf resumed>) = 5 [pid 6766] <... bpf resumed>) = 5 [pid 6765] <... bpf resumed>) = 5 [pid 6768] exit_group(0 [pid 6767] exit_group(0 [pid 6765] exit_group(0 [pid 6768] <... exit_group resumed>) = ? [pid 6767] <... exit_group resumed>) = ? [pid 6766] exit_group(0 [pid 6765] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6769 attached [pid 6768] +++ exited with 0 +++ [pid 6767] +++ exited with 0 +++ [pid 6769] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6769 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6769] <... set_robust_list resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6767, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6766] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6769] <... prctl resumed>) = 0 [pid 6769] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6770 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6770 [pid 6770] set_robust_list(0x55556540f660, 24 [pid 6769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6766] +++ exited with 0 +++ [pid 6765] +++ exited with 0 +++ [pid 6770] <... set_robust_list resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6769] <... openat resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6771 attached [pid 6770] <... prctl resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6770] setpgid(0, 0 [pid 6769] write(3, "1000", 4 [pid 6770] <... setpgid resumed>) = 0 [pid 6769] <... write resumed>) = 4 ./strace-static-x86_64: Process 6772 attached [pid 6771] set_robust_list(0x55556540f660, 24 [pid 6770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6772] set_robust_list(0x55556540f660, 24 [pid 6771] <... set_robust_list resumed>) = 0 [pid 6770] <... openat resumed>) = 3 [pid 6769] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6771 [pid 6772] <... set_robust_list resumed>) = 0 [pid 6771] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6769] <... close resumed>) = 0 [pid 6772] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 6770] write(3, "1000", 4 [pid 6769] write(1, "executing program\n", 18 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6772 [pid 6772] <... prctl resumed>) = 0 [pid 6771] <... prctl resumed>) = 0 [pid 6770] <... write resumed>) = 4 [pid 6769] <... write resumed>) = 18 [pid 6772] setpgid(0, 0 [pid 6771] setpgid(0, 0 [pid 6770] close(3 [pid 6769] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6772] <... setpgid resumed>) = 0 [pid 6771] <... setpgid resumed>) = 0 [pid 6770] <... close resumed>) = 0 [pid 6769] <... bpf resumed>) = 3 [pid 6772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6772] <... openat resumed>) = 3 [pid 6771] <... openat resumed>) = 3 [pid 6770] write(1, "executing program\n", 18 [pid 6769] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6773 attached executing program [pid 6773] set_robust_list(0x55556540f660, 24 [pid 6772] write(3, "1000", 4 [pid 6771] write(3, "1000", 4 [pid 6770] <... write resumed>) = 18 [pid 6769] <... bpf resumed>) = 4 [pid 6773] <... set_robust_list resumed>) = 0 [pid 6772] <... write resumed>) = 4 [pid 6771] <... write resumed>) = 4 [pid 6770] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6772] close(3 [pid 6773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6771] close(3 [pid 6770] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6773 [pid 6773] <... prctl resumed>) = 0 [pid 6772] <... close resumed>) = 0 [pid 6771] <... close resumed>) = 0 executing program executing program [pid 6772] write(1, "executing program\n", 18 [pid 6771] write(1, "executing program\n", 18 [pid 6770] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6769] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6773] setpgid(0, 0 [pid 6772] <... write resumed>) = 18 [pid 6771] <... write resumed>) = 18 [pid 6770] <... bpf resumed>) = 4 [pid 6773] <... setpgid resumed>) = 0 [pid 6772] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6771] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6770] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6769] <... bpf resumed>) = 5 [pid 6772] <... bpf resumed>) = 3 [pid 6773] <... openat resumed>) = 3 executing program [pid 6772] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6771] <... bpf resumed>) = 3 [pid 6769] exit_group(0 [pid 6770] <... bpf resumed>) = 5 [pid 6773] write(3, "1000", 4) = 4 [pid 6773] close(3) = 0 [pid 6773] write(1, "executing program\n", 18) = 18 [pid 6773] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6772] <... bpf resumed>) = 4 [pid 6771] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6770] exit_group(0 [pid 6769] <... exit_group resumed>) = ? [pid 6772] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6773] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6773] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6770] <... exit_group resumed>) = ? [pid 6771] <... bpf resumed>) = 4 [pid 6771] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6773] <... bpf resumed>) = 5 [pid 6772] <... bpf resumed>) = 5 [pid 6769] +++ exited with 0 +++ [pid 6773] exit_group(0 [pid 6771] <... bpf resumed>) = 5 [pid 6770] +++ exited with 0 +++ [pid 6771] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6773] <... exit_group resumed>) = ? [pid 6771] <... exit_group resumed>) = ? [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6773] +++ exited with 0 +++ [pid 6772] exit_group(0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6772] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6773, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6774 attached [pid 6774] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6776 attached ./strace-static-x86_64: Process 6775 attached [pid 6772] +++ exited with 0 +++ [pid 6771] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6774 [pid 6776] set_robust_list(0x55556540f660, 24 [pid 6775] set_robust_list(0x55556540f660, 24 [pid 6774] <... set_robust_list resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6771, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6776 [pid 6776] <... set_robust_list resumed>) = 0 [pid 6775] <... set_robust_list resumed>) = 0 [pid 6774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6774] <... prctl resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6775 [pid 6776] <... prctl resumed>) = 0 [pid 6774] setpgid(0, 0 [pid 6776] setpgid(0, 0 [pid 6775] <... prctl resumed>) = 0 [pid 6774] <... setpgid resumed>) = 0 [pid 6776] <... setpgid resumed>) = 0 [pid 6775] setpgid(0, 0 [pid 6774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6775] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6774] <... openat resumed>) = 3 [pid 6776] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6778 attached ./strace-static-x86_64: Process 6777 attached [pid 6775] <... openat resumed>) = 3 [pid 6774] write(3, "1000", 4 [pid 6778] set_robust_list(0x55556540f660, 24 [pid 6776] write(3, "1000", 4 [pid 6775] write(3, "1000", 4 [pid 6774] <... write resumed>) = 4 [pid 6778] <... set_robust_list resumed>) = 0 [pid 6777] set_robust_list(0x55556540f660, 24 [pid 6776] <... write resumed>) = 4 [pid 6775] <... write resumed>) = 4 [pid 6774] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6778 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6777 [pid 6778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6776] close(3 [pid 6775] close(3 [pid 6774] <... close resumed>) = 0 executing program executing program [pid 6778] <... prctl resumed>) = 0 [pid 6777] <... set_robust_list resumed>) = 0 [pid 6776] <... close resumed>) = 0 [pid 6775] <... close resumed>) = 0 [pid 6774] write(1, "executing program\n", 18 [pid 6778] setpgid(0, 0 [pid 6776] write(1, "executing program\n", 18 [pid 6778] <... setpgid resumed>) = 0 executing program [pid 6776] <... write resumed>) = 18 [pid 6775] write(1, "executing program\n", 18 [pid 6774] <... write resumed>) = 18 [pid 6778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6776] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6775] <... write resumed>) = 18 [pid 6774] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6777] <... prctl resumed>) = 0 [pid 6778] <... openat resumed>) = 3 [pid 6777] setpgid(0, 0 [pid 6776] <... bpf resumed>) = 3 [pid 6775] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6774] <... bpf resumed>) = 3 [pid 6778] write(3, "1000", 4 [pid 6777] <... setpgid resumed>) = 0 [pid 6776] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6775] <... bpf resumed>) = 3 [pid 6774] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6778] <... write resumed>) = 4 [pid 6777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6776] <... bpf resumed>) = 4 [pid 6775] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6774] <... bpf resumed>) = 4 [pid 6778] close(3 [pid 6777] <... openat resumed>) = 3 [pid 6777] write(3, "1000", 4 [pid 6778] <... close resumed>) = 0 [pid 6777] <... write resumed>) = 4 [pid 6776] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6777] close(3 [pid 6778] write(1, "executing program\n", 18executing program [pid 6777] <... close resumed>) = 0 [pid 6776] <... bpf resumed>) = 5 [pid 6775] <... bpf resumed>) = 4 [pid 6774] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6778] <... write resumed>) = 18 executing program [pid 6777] write(1, "executing program\n", 18 [pid 6778] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6774] <... bpf resumed>) = 5 [pid 6777] <... write resumed>) = 18 [pid 6778] <... bpf resumed>) = 3 [pid 6777] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6776] exit_group(0 [pid 6775] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6778] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6776] <... exit_group resumed>) = ? [pid 6775] <... bpf resumed>) = 5 [pid 6774] exit_group(0 [pid 6777] <... bpf resumed>) = 3 [pid 6777] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6778] <... bpf resumed>) = 4 [pid 6777] <... bpf resumed>) = 4 [pid 6776] +++ exited with 0 +++ [pid 6775] exit_group(0 [pid 6774] <... exit_group resumed>) = ? [pid 6778] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6777] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6775] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6778] <... bpf resumed>) = 5 [pid 6777] <... bpf resumed>) = 5 [pid 6775] +++ exited with 0 +++ [pid 6774] +++ exited with 0 +++ [pid 6778] exit_group(0 [pid 6777] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6775, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6778] <... exit_group resumed>) = ? [pid 6777] <... exit_group resumed>) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6774, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6779 attached [pid 6779] set_robust_list(0x55556540f660, 24) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6780 attached [pid 6779] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6779 [pid 6779] <... prctl resumed>) = 0 [pid 6779] setpgid(0, 0) = 0 [pid 6779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6781 attached ) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6780 [pid 6781] set_robust_list(0x55556540f660, 24 [pid 6780] set_robust_list(0x55556540f660, 24 [pid 6779] write(3, "1000", 4 [pid 6781] <... set_robust_list resumed>) = 0 [pid 6780] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6781 [pid 6779] <... write resumed>) = 4 [pid 6780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6779] close(3executing program ) = 0 [pid 6780] <... prctl resumed>) = 0 [pid 6779] write(1, "executing program\n", 18) = 18 [pid 6779] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6780] setpgid(0, 0 [pid 6778] +++ exited with 0 +++ [pid 6777] +++ exited with 0 +++ [pid 6781] <... prctl resumed>) = 0 [pid 6779] <... bpf resumed>) = 3 [pid 6781] setpgid(0, 0 [pid 6780] <... setpgid resumed>) = 0 [pid 6779] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6777, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6781] <... setpgid resumed>) = 0 [pid 6780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6779] <... bpf resumed>) = 4 [pid 6781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6781] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6782 attached [pid 6780] <... openat resumed>) = 3 [pid 6779] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6782] set_robust_list(0x55556540f660, 24 [pid 6781] write(3, "1000", 4 [pid 6780] write(3, "1000", 4 [pid 6779] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6783 attached [pid 6782] <... set_robust_list resumed>) = 0 [pid 6781] <... write resumed>) = 4 [pid 6780] <... write resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6782 [pid 6783] set_robust_list(0x55556540f660, 24 [pid 6782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6781] close(3 [pid 6780] close(3 [pid 6783] <... set_robust_list resumed>) = 0 [pid 6782] <... prctl resumed>) = 0 [pid 6781] <... close resumed>) = 0 [pid 6780] <... close resumed>) = 0 [pid 6782] setpgid(0, 0executing program executing program [pid 6781] write(1, "executing program\n", 18 [pid 6780] write(1, "executing program\n", 18 [pid 6779] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6783 [pid 6782] <... setpgid resumed>) = 0 [pid 6781] <... write resumed>) = 18 [pid 6780] <... write resumed>) = 18 [pid 6779] <... exit_group resumed>) = ? [pid 6783] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6781] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6780] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6783] <... prctl resumed>) = 0 [pid 6782] <... openat resumed>) = 3 [pid 6781] <... bpf resumed>) = 3 [pid 6780] <... bpf resumed>) = 3 [pid 6779] +++ exited with 0 +++ [pid 6783] setpgid(0, 0) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6782] write(3, "1000", 4 [pid 6781] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6780] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6782] <... write resumed>) = 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6783] <... openat resumed>) = 3 [pid 6782] close(3 [pid 6781] <... bpf resumed>) = 4 [pid 6780] <... bpf resumed>) = 4 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6783] write(3, "1000", 4 [pid 6782] <... close resumed>) = 0 [pid 6782] write(1, "executing program\n", 18) = 18 [pid 6783] <... write resumed>) = 4 [pid 6783] close(3executing program [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6782] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6781] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6780] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6784 attached [pid 6783] <... close resumed>) = 0 [pid 6782] <... bpf resumed>) = 3 [pid 6781] <... bpf resumed>) = 5 [pid 6780] <... bpf resumed>) = 5 [pid 6783] write(1, "executing program\n", 18 [pid 6784] set_robust_list(0x55556540f660, 24 [pid 6782] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6784] <... set_robust_list resumed>) = 0 executing program [pid 6781] exit_group(0 [pid 6780] exit_group(0 [pid 6783] <... write resumed>) = 18 [pid 6784] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6783] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6781] <... exit_group resumed>) = ? [pid 6780] <... exit_group resumed>) = ? [pid 6783] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6784 [pid 6783] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6782] <... bpf resumed>) = 4 [pid 6783] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6784] <... prctl resumed>) = 0 [pid 6782] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6784] setpgid(0, 0) = 0 [pid 6784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6784] write(3, "1000", 4) = 4 [pid 6784] close(3) = 0 executing program [pid 6784] write(1, "executing program\n", 18) = 18 [pid 6784] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6784] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6784] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6781] +++ exited with 0 +++ [pid 6780] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6781, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6785 attached [pid 6785] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6786 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6785 [pid 6786] set_robust_list(0x55556540f660, 24 [pid 6785] <... set_robust_list resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6786 [pid 6786] <... set_robust_list resumed>) = 0 [pid 6785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6785] <... prctl resumed>) = 0 [pid 6786] setpgid(0, 0 [pid 6785] setpgid(0, 0) = 0 [pid 6786] <... setpgid resumed>) = 0 [pid 6784] <... bpf resumed>) = 5 [pid 6783] <... bpf resumed>) = 5 [pid 6782] <... bpf resumed>) = 5 [pid 6786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6784] exit_group(0 [pid 6783] exit_group(0 [pid 6782] exit_group(0 [pid 6786] <... openat resumed>) = 3 [pid 6784] <... exit_group resumed>) = ? [pid 6783] <... exit_group resumed>) = ? [pid 6782] <... exit_group resumed>) = ? [pid 6785] <... openat resumed>) = 3 [pid 6783] +++ exited with 0 +++ [pid 6786] write(3, "1000", 4 [pid 6785] write(3, "1000", 4 [pid 6786] <... write resumed>) = 4 [pid 6785] <... write resumed>) = 4 [pid 6786] close(3 [pid 6785] close(3 [pid 6786] <... close resumed>) = 0 [pid 6785] <... close resumed>) = 0 [pid 6786] write(1, "executing program\n", 18executing program executing program [pid 6785] write(1, "executing program\n", 18 [pid 6786] <... write resumed>) = 18 [pid 6785] <... write resumed>) = 18 [pid 6786] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6785] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6783, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6786] <... bpf resumed>) = 3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6786] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6785] <... bpf resumed>) = 3 [pid 6786] <... bpf resumed>) = 4 [pid 6785] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6786] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6785] <... bpf resumed>) = 4 [pid 6785] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6787 attached , child_tidptr=0x55556540f650) = 6787 [pid 6784] +++ exited with 0 +++ [pid 6782] +++ exited with 0 +++ [pid 6787] set_robust_list(0x55556540f660, 24 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6784, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6787] <... set_robust_list resumed>) = 0 [pid 6787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6787] <... prctl resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6788 attached [pid 6787] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6789 attached [pid 6788] set_robust_list(0x55556540f660, 24 [pid 6787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6786] <... bpf resumed>) = 5 [pid 6785] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6788 [pid 6788] <... set_robust_list resumed>) = 0 [pid 6789] set_robust_list(0x55556540f660, 24 [pid 6787] <... openat resumed>) = 3 [pid 6785] exit_group(0 [pid 6789] <... set_robust_list resumed>) = 0 [pid 6789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6786] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6789 [pid 6788] setpgid(0, 0 [pid 6786] <... exit_group resumed>) = ? [pid 6788] <... setpgid resumed>) = 0 [pid 6789] <... prctl resumed>) = 0 [pid 6787] write(3, "1000", 4 [pid 6785] <... exit_group resumed>) = ? [pid 6789] setpgid(0, 0 [pid 6788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6787] <... write resumed>) = 4 [pid 6789] <... setpgid resumed>) = 0 [pid 6787] close(3 [pid 6788] <... openat resumed>) = 3 [pid 6789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6787] <... close resumed>) = 0 [pid 6788] write(3, "1000", 4 [pid 6789] <... openat resumed>) = 3 executing program [pid 6787] write(1, "executing program\n", 18 [pid 6789] write(3, "1000", 4 [pid 6788] <... write resumed>) = 4 [pid 6787] <... write resumed>) = 18 [pid 6789] <... write resumed>) = 4 [pid 6788] close(3 executing program [pid 6787] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6789] close(3 [pid 6788] <... close resumed>) = 0 [pid 6787] <... bpf resumed>) = 3 [pid 6788] write(1, "executing program\n", 18 [pid 6789] <... close resumed>) = 0 [pid 6788] <... write resumed>) = 18 executing program [pid 6789] write(1, "executing program\n", 18 [pid 6788] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6787] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6789] <... write resumed>) = 18 [pid 6788] <... bpf resumed>) = 3 [pid 6789] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6788] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6787] <... bpf resumed>) = 4 [pid 6789] <... bpf resumed>) = 3 [pid 6787] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6789] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6788] <... bpf resumed>) = 4 [pid 6786] +++ exited with 0 +++ [pid 6785] +++ exited with 0 +++ [pid 6789] <... bpf resumed>) = 4 [pid 6788] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6785, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6786, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6790 attached [pid 6789] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6790 ./strace-static-x86_64: Process 6791 attached [pid 6790] set_robust_list(0x55556540f660, 24) = 0 [pid 6791] set_robust_list(0x55556540f660, 24) = 0 [pid 6790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6791 [pid 6791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6790] <... prctl resumed>) = 0 [pid 6791] <... prctl resumed>) = 0 [pid 6790] setpgid(0, 0 [pid 6789] <... bpf resumed>) = 5 [pid 6788] <... bpf resumed>) = 5 [pid 6787] <... bpf resumed>) = 5 [pid 6791] setpgid(0, 0 [pid 6790] <... setpgid resumed>) = 0 [pid 6788] exit_group(0 [pid 6790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6788] <... exit_group resumed>) = ? [pid 6791] <... setpgid resumed>) = 0 [pid 6790] <... openat resumed>) = 3 [pid 6789] exit_group(0 [pid 6787] exit_group(0 [pid 6791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6790] write(3, "1000", 4 [pid 6789] <... exit_group resumed>) = ? [pid 6788] +++ exited with 0 +++ [pid 6787] <... exit_group resumed>) = ? [pid 6791] <... openat resumed>) = 3 [pid 6790] <... write resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6791] write(3, "1000", 4 [pid 6790] close(3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6791] <... write resumed>) = 4 [pid 6790] <... close resumed>) = 0 executing program [pid 6791] close(3 [pid 6790] write(1, "executing program\n", 18 [pid 6791] <... close resumed>) = 0 [pid 6790] <... write resumed>) = 18 [pid 6791] write(1, "executing program\n", 18 [pid 6790] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6791] <... write resumed>) = 18 [pid 6790] <... bpf resumed>) = 3 [pid 6791] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6792 attached ) = 3 [pid 6790] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6792] set_robust_list(0x55556540f660, 24 [pid 6791] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6790] <... bpf resumed>) = 4 [pid 6792] <... set_robust_list resumed>) = 0 [pid 6791] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6792 [pid 6790] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6792] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6791] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6792] <... prctl resumed>) = 0 [pid 6789] +++ exited with 0 +++ [pid 6787] +++ exited with 0 +++ [pid 6792] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6789, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6792] <... setpgid resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6787, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6792] <... openat resumed>) = 3 [pid 6792] write(3, "1000", 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6792] <... write resumed>) = 4 ./strace-static-x86_64: Process 6794 attached ./strace-static-x86_64: Process 6793 attached [pid 6792] close(3executing program [pid 6794] set_robust_list(0x55556540f660, 24 [pid 6792] <... close resumed>) = 0 [pid 6794] <... set_robust_list resumed>) = 0 [pid 6792] write(1, "executing program\n", 18 [pid 6794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6793] set_robust_list(0x55556540f660, 24 [pid 6792] <... write resumed>) = 18 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6794 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6793 [pid 6794] <... prctl resumed>) = 0 [pid 6793] <... set_robust_list resumed>) = 0 [pid 6792] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6794] setpgid(0, 0 [pid 6793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6794] <... setpgid resumed>) = 0 [pid 6793] <... prctl resumed>) = 0 [pid 6792] <... bpf resumed>) = 3 [pid 6793] setpgid(0, 0) = 0 [pid 6793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6792] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6794] <... openat resumed>) = 3 [pid 6793] <... openat resumed>) = 3 [pid 6793] write(3, "1000", 4) = 4 [pid 6793] close(3) = 0 executing program [pid 6793] write(1, "executing program\n", 18 [pid 6794] write(3, "1000", 4 [pid 6793] <... write resumed>) = 18 [pid 6792] <... bpf resumed>) = 4 [pid 6791] <... bpf resumed>) = 5 [pid 6790] <... bpf resumed>) = 5 [pid 6794] <... write resumed>) = 4 [pid 6794] close(3 [pid 6793] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6792] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6791] exit_group(0 [pid 6790] exit_group(0 [pid 6794] <... close resumed>) = 0 [pid 6793] <... bpf resumed>) = 3 [pid 6792] <... bpf resumed>) = 5 [pid 6791] <... exit_group resumed>) = ? [pid 6790] <... exit_group resumed>) = ? [pid 6794] write(1, "executing program\n", 18 [pid 6792] exit_group(0 executing program [pid 6793] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6794] <... write resumed>) = 18 [pid 6793] <... bpf resumed>) = 4 [pid 6792] <... exit_group resumed>) = ? [pid 6794] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6793] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6791] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6794] <... bpf resumed>) = 3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6794] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6794] <... bpf resumed>) = 4 [pid 6794] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6793] <... bpf resumed>) = 5 [pid 6790] +++ exited with 0 +++ [pid 6793] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6790, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6793] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6795 attached [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6795 [pid 6795] set_robust_list(0x55556540f660, 24) = 0 [pid 6795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6795] setpgid(0, 0) = 0 [pid 6795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6795] write(3, "1000", 4) = 4 [pid 6795] close(3) = 0 executing program [pid 6795] write(1, "executing program\n", 18) = 18 [pid 6795] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6795] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6795] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6794] <... bpf resumed>) = 5 [pid 6792] +++ exited with 0 +++ [pid 6794] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6792, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6794] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6796 ./strace-static-x86_64: Process 6796 attached [pid 6795] <... bpf resumed>) = 5 [pid 6793] +++ exited with 0 +++ [pid 6796] set_robust_list(0x55556540f660, 24 [pid 6795] exit_group(0 [pid 6796] <... set_robust_list resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6793, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6795] <... exit_group resumed>) = ? [pid 6796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6796] setpgid(0, 0) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6797 attached [pid 6796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6797 ./strace-static-x86_64: Process 6798 attached [pid 6797] set_robust_list(0x55556540f660, 24 [pid 6796] <... openat resumed>) = 3 [pid 6797] <... set_robust_list resumed>) = 0 [pid 6798] set_robust_list(0x55556540f660, 24 [pid 6796] write(3, "1000", 4 [pid 6798] <... set_robust_list resumed>) = 0 [pid 6797] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6796] <... write resumed>) = 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6798 [pid 6798] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6797] <... prctl resumed>) = 0 [pid 6796] close(3 [pid 6797] setpgid(0, 0) = 0 [pid 6796] <... close resumed>) = 0 [pid 6798] <... prctl resumed>) = 0 [pid 6796] write(1, "executing program\n", 18 executing program [pid 6798] setpgid(0, 0 [pid 6797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6798] <... setpgid resumed>) = 0 [pid 6796] <... write resumed>) = 18 [pid 6798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6796] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6794] +++ exited with 0 +++ [pid 6798] <... openat resumed>) = 3 [pid 6797] <... openat resumed>) = 3 [pid 6796] <... bpf resumed>) = 3 [pid 6795] +++ exited with 0 +++ [pid 6798] write(3, "1000", 4 [pid 6797] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6798] <... write resumed>) = 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6798] close(3executing program ) = 0 [pid 6797] <... write resumed>) = 4 [pid 6796] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6795, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6797] close(3 [pid 6798] write(1, "executing program\n", 18 [pid 6797] <... close resumed>) = 0 [pid 6798] <... write resumed>) = 18 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6797] write(1, "executing program\n", 18executing program [pid 6798] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6797] <... write resumed>) = 18 [pid 6798] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6796] <... bpf resumed>) = 4 [pid 6798] <... bpf resumed>) = 4 [pid 6797] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6796] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6798] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6797] <... bpf resumed>) = 3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6797] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6800 attached ./strace-static-x86_64: Process 6799 attached [pid 6800] set_robust_list(0x55556540f660, 24) = 0 [pid 6799] set_robust_list(0x55556540f660, 24 [pid 6798] <... bpf resumed>) = 5 [pid 6797] <... bpf resumed>) = 4 [pid 6796] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6800 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6799 [pid 6800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6799] <... set_robust_list resumed>) = 0 [pid 6800] <... prctl resumed>) = 0 [pid 6799] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6798] exit_group(0 [pid 6797] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6796] exit_group(0 [pid 6800] setpgid(0, 0 [pid 6799] <... prctl resumed>) = 0 [pid 6798] <... exit_group resumed>) = ? [pid 6796] <... exit_group resumed>) = ? [pid 6797] <... bpf resumed>) = 5 [pid 6800] <... setpgid resumed>) = 0 [pid 6799] setpgid(0, 0 [pid 6798] +++ exited with 0 +++ [pid 6800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6799] <... setpgid resumed>) = 0 [pid 6797] exit_group(0) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6798, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6800] <... openat resumed>) = 3 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6800] write(3, "1000", 4 [pid 6799] <... openat resumed>) = 3 [pid 6800] <... write resumed>) = 4 [pid 6800] close(3) = 0 [pid 6799] write(3, "1000", 4 [pid 6800] write(1, "executing program\n", 18 [pid 6799] <... write resumed>) = 4 [pid 6800] <... write resumed>) = 18 [pid 6800] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6799] close(3 [pid 6797] +++ exited with 0 +++ [pid 6800] <... bpf resumed>) = 3 [pid 6799] <... close resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6797, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6799] write(1, "executing program\n", 18) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6800] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6799] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6796] +++ exited with 0 +++ [pid 6800] <... bpf resumed>) = 4 [pid 6799] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6796, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6799] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6799] <... bpf resumed>) = 4 [pid 6800] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6800] <... bpf resumed>) = 5 [pid 6799] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6800] exit_group(0 [pid 6799] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6801 attached [pid 6800] <... exit_group resumed>) = ? [pid 6799] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6802 attached [pid 6801] set_robust_list(0x55556540f660, 24 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6801] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6801 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6802 [pid 6802] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 6803 attached [pid 6802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6802] <... prctl resumed>) = 0 [pid 6801] <... prctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6803 [pid 6803] set_robust_list(0x55556540f660, 24 [pid 6802] setpgid(0, 0 [pid 6801] setpgid(0, 0 [pid 6803] <... set_robust_list resumed>) = 0 [pid 6801] <... setpgid resumed>) = 0 [pid 6803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6802] <... setpgid resumed>) = 0 [pid 6802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6803] <... prctl resumed>) = 0 [pid 6802] <... openat resumed>) = 3 [pid 6801] <... openat resumed>) = 3 [pid 6803] setpgid(0, 0) = 0 [pid 6802] write(3, "1000", 4 [pid 6801] write(3, "1000", 4 [pid 6800] +++ exited with 0 +++ [pid 6799] +++ exited with 0 +++ [pid 6802] <... write resumed>) = 4 [pid 6801] <... write resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6802] close(3 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6802] <... close resumed>) = 0 executing program [pid 6802] write(1, "executing program\n", 18 [pid 6803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6802] <... write resumed>) = 18 [pid 6801] close(3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6799, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6803] <... openat resumed>) = 3 [pid 6802] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6801] <... close resumed>) = 0 executing program [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6803] write(3, "1000", 4 [pid 6801] write(1, "executing program\n", 18 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6803] <... write resumed>) = 4 [pid 6801] <... write resumed>) = 18 [pid 6803] close(3 [pid 6801] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6803] <... close resumed>) = 0 executing program [pid 6801] <... bpf resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6803] write(1, "executing program\n", 18 [pid 6802] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6805 attached ./strace-static-x86_64: Process 6804 attached [pid 6803] <... write resumed>) = 18 [pid 6802] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6801] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6804] set_robust_list(0x55556540f660, 24 [pid 6805] set_robust_list(0x55556540f660, 24 [pid 6804] <... set_robust_list resumed>) = 0 [pid 6803] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6802] <... bpf resumed>) = 4 [pid 6801] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6805 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6804 [pid 6805] <... set_robust_list resumed>) = 0 [pid 6804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6803] <... bpf resumed>) = 3 [pid 6805] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6803] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6802] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6805] <... prctl resumed>) = 0 [pid 6804] <... prctl resumed>) = 0 [pid 6803] <... bpf resumed>) = 4 [pid 6801] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6805] setpgid(0, 0 [pid 6804] setpgid(0, 0 [pid 6805] <... setpgid resumed>) = 0 [pid 6804] <... setpgid resumed>) = 0 [pid 6805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6805] <... openat resumed>) = 3 [pid 6803] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6802] <... bpf resumed>) = 5 [pid 6801] <... bpf resumed>) = 5 [pid 6805] write(3, "1000", 4 [pid 6803] <... bpf resumed>) = 5 [pid 6805] <... write resumed>) = 4 [pid 6803] exit_group(0 [pid 6801] exit_group(0 [pid 6805] close(3) = 0 [pid 6803] <... exit_group resumed>) = ? [pid 6805] write(1, "executing program\n", 18 [pid 6804] <... openat resumed>) = 3 [pid 6803] +++ exited with 0 +++ [pid 6802] exit_group(0 [pid 6801] <... exit_group resumed>) = ? executing program [pid 6804] write(3, "1000", 4 [pid 6802] <... exit_group resumed>) = ? [pid 6805] <... write resumed>) = 18 [pid 6804] <... write resumed>) = 4 [pid 6801] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6803, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6805] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6801, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6805] <... bpf resumed>) = 3 [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6805] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6804] close(3 [pid 6802] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6804] <... close resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6804] write(1, "executing program\n", 18executing program [pid 6805] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6806 attached [pid 6804] <... write resumed>) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6806] set_robust_list(0x55556540f660, 24) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6806 [pid 6806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6806] setpgid(0, 0 [pid 6805] <... bpf resumed>) = 5 [pid 6804] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6806] <... setpgid resumed>) = 0 [pid 6806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6807 attached ) = 3 [pid 6807] set_robust_list(0x55556540f660, 24) = 0 executing program [pid 6807] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6806] write(3, "1000", 4 [pid 6804] <... bpf resumed>) = 3 [pid 6806] <... write resumed>) = 4 [pid 6806] close(3 [pid 6807] <... prctl resumed>) = 0 [pid 6806] <... close resumed>) = 0 [pid 6807] setpgid(0, 0 [pid 6806] write(1, "executing program\n", 18 [pid 6807] <... setpgid resumed>) = 0 [pid 6806] <... write resumed>) = 18 ./strace-static-x86_64: Process 6808 attached [pid 6807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6806] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6805] exit_group(0 [pid 6804] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6807 [pid 6808] set_robust_list(0x55556540f660, 24 [pid 6807] <... openat resumed>) = 3 [pid 6805] <... exit_group resumed>) = ? [pid 6808] <... set_robust_list resumed>) = 0 [pid 6807] write(3, "1000", 4 [pid 6806] <... bpf resumed>) = 3 [pid 6804] <... bpf resumed>) = 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6808 [pid 6808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6807] <... write resumed>) = 4 [pid 6806] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6805] +++ exited with 0 +++ [pid 6804] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6808] <... prctl resumed>) = 0 [pid 6807] close(3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6805, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6806] <... bpf resumed>) = 4 [pid 6808] setpgid(0, 0 [pid 6807] <... close resumed>) = 0 [pid 6806] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6808] <... setpgid resumed>) = 0 [pid 6807] write(1, "executing program\n", 18executing program [pid 6808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6807] <... write resumed>) = 18 [pid 6807] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6808] <... openat resumed>) = 3 [pid 6807] <... bpf resumed>) = 3 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6808] write(3, "1000", 4) = 4 [pid 6807] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6808] close(3) = 0 [pid 6807] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6808] write(1, "executing program\n", 18./strace-static-x86_64: Process 6809 attached executing program ) = 18 [pid 6808] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6809] set_robust_list(0x55556540f660, 24 [pid 6808] <... bpf resumed>) = 3 [pid 6807] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6809 [pid 6809] <... set_robust_list resumed>) = 0 [pid 6808] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6808] <... bpf resumed>) = 4 [pid 6808] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6809] <... prctl resumed>) = 0 [pid 6807] <... bpf resumed>) = 5 [pid 6806] <... bpf resumed>) = 5 [pid 6804] <... bpf resumed>) = 5 [pid 6809] setpgid(0, 0 [pid 6808] <... bpf resumed>) = 5 [pid 6807] exit_group(0 [pid 6806] exit_group(0 [pid 6804] exit_group(0 [pid 6809] <... setpgid resumed>) = 0 [pid 6808] exit_group(0 [pid 6807] <... exit_group resumed>) = ? [pid 6806] <... exit_group resumed>) = ? [pid 6804] <... exit_group resumed>) = ? [pid 6809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6807] +++ exited with 0 +++ [pid 6806] +++ exited with 0 +++ [pid 6808] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6807, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6809] <... openat resumed>) = 3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6809] write(3, "1000", 4executing program ) = 4 [pid 6809] close(3) = 0 [pid 6809] write(1, "executing program\n", 18) = 18 [pid 6809] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6809] <... bpf resumed>) = 3 [pid 6809] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6809] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6811 attached ./strace-static-x86_64: Process 6810 attached [pid 6808] +++ exited with 0 +++ [pid 6804] +++ exited with 0 +++ [pid 6811] set_robust_list(0x55556540f660, 24 [pid 6809] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6810 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6808, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6804, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6811] <... set_robust_list resumed>) = 0 [pid 6810] set_robust_list(0x55556540f660, 24) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6811 [pid 6811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6811] <... prctl resumed>) = 0 [pid 6810] <... prctl resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6812 attached [pid 6811] setpgid(0, 0 [pid 6810] setpgid(0, 0 [pid 6812] set_robust_list(0x55556540f660, 24 [pid 6810] <... setpgid resumed>) = 0 [pid 6810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6812] <... set_robust_list resumed>) = 0 [pid 6811] <... setpgid resumed>) = 0 [pid 6811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6812] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6813 attached ) = 0 [pid 6811] <... openat resumed>) = 3 [pid 6810] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6812 [pid 6812] setpgid(0, 0 [pid 6813] set_robust_list(0x55556540f660, 24 [pid 6811] write(3, "1000", 4 [pid 6813] <... set_robust_list resumed>) = 0 [pid 6811] <... write resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6813 [pid 6813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6812] <... setpgid resumed>) = 0 [pid 6811] close(3 [pid 6810] write(3, "1000", 4 [pid 6811] <... close resumed>) = 0 [pid 6813] <... prctl resumed>) = 0 executing program [pid 6812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6811] write(1, "executing program\n", 18 [pid 6810] <... write resumed>) = 4 [pid 6813] setpgid(0, 0 [pid 6810] close(3 [pid 6813] <... setpgid resumed>) = 0 [pid 6811] <... write resumed>) = 18 [pid 6813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6811] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6810] <... close resumed>) = 0 [pid 6813] <... openat resumed>) = 3 [pid 6812] <... openat resumed>) = 3 [pid 6811] <... bpf resumed>) = 3 [pid 6813] write(3, "1000", 4 [pid 6812] write(3, "1000", 4 [pid 6810] write(1, "executing program\n", 18executing program [pid 6813] <... write resumed>) = 4 [pid 6812] <... write resumed>) = 4 [pid 6811] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6810] <... write resumed>) = 18 [pid 6809] <... bpf resumed>) = 5 [pid 6812] close(3 [pid 6813] close(3executing program executing program [pid 6812] <... close resumed>) = 0 [pid 6811] <... bpf resumed>) = 4 [pid 6810] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6813] <... close resumed>) = 0 [pid 6812] write(1, "executing program\n", 18 [pid 6809] exit_group(0 [pid 6813] write(1, "executing program\n", 18 [pid 6812] <... write resumed>) = 18 [pid 6813] <... write resumed>) = 18 [pid 6810] <... bpf resumed>) = 3 [pid 6813] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6812] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6811] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6809] <... exit_group resumed>) = ? [pid 6813] <... bpf resumed>) = 3 [pid 6812] <... bpf resumed>) = 3 [pid 6811] <... bpf resumed>) = 5 [pid 6810] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6813] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6812] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6813] <... bpf resumed>) = 4 [pid 6811] exit_group(0 [pid 6810] <... bpf resumed>) = 4 [pid 6813] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6812] <... bpf resumed>) = 4 [pid 6811] <... exit_group resumed>) = ? [pid 6812] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6810] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6813] <... bpf resumed>) = 5 [pid 6809] +++ exited with 0 +++ [pid 6813] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6809, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6813] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6814 attached [pid 6813] +++ exited with 0 +++ [pid 6812] <... bpf resumed>) = 5 [pid 6811] +++ exited with 0 +++ [pid 6810] <... bpf resumed>) = 5 [pid 6814] set_robust_list(0x55556540f660, 24) = 0 [pid 6812] exit_group(0 [pid 6810] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6814 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6813, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6812] <... exit_group resumed>) = ? [pid 6810] <... exit_group resumed>) = ? [pid 6814] <... prctl resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6811, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6814] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6814] <... setpgid resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6816 attached ./strace-static-x86_64: Process 6815 attached [pid 6814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6816] set_robust_list(0x55556540f660, 24 [pid 6815] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6815 [pid 6816] <... set_robust_list resumed>) = 0 [pid 6815] <... set_robust_list resumed>) = 0 [pid 6814] <... openat resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6816 [pid 6816] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6816] <... prctl resumed>) = 0 [pid 6814] write(3, "1000", 4 [pid 6815] <... prctl resumed>) = 0 [pid 6816] setpgid(0, 0 [pid 6814] <... write resumed>) = 4 [pid 6816] <... setpgid resumed>) = 0 [pid 6815] setpgid(0, 0 [pid 6814] close(3 executing program [pid 6816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6815] <... setpgid resumed>) = 0 [pid 6814] <... close resumed>) = 0 [pid 6816] <... openat resumed>) = 3 [pid 6815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6814] write(1, "executing program\n", 18 [pid 6816] write(3, "1000", 4) = 4 [pid 6816] close(3 [pid 6814] <... write resumed>) = 18 [pid 6815] <... openat resumed>) = 3 [pid 6814] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6810] +++ exited with 0 +++ [pid 6816] <... close resumed>) = 0 [pid 6812] +++ exited with 0 +++ executing program [pid 6816] write(1, "executing program\n", 18 [pid 6815] write(3, "1000", 4 [pid 6814] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6810, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6812, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6816] <... write resumed>) = 18 [pid 6815] <... write resumed>) = 4 [pid 6814] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6815] close(3 [pid 6814] <... bpf resumed>) = 4 [pid 6815] <... close resumed>) = 0 [pid 6815] write(1, "executing program\n", 18) = 18 [pid 6815] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6816] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6814] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6816] <... bpf resumed>) = 3 [pid 6815] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6816] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6819 attached ./strace-static-x86_64: Process 6818 attached ) = 4 [pid 6815] <... bpf resumed>) = 4 [pid 6819] set_robust_list(0x55556540f660, 24 [pid 6818] set_robust_list(0x55556540f660, 24 [pid 6816] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6818 [pid 6815] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6819 [pid 6819] <... set_robust_list resumed>) = 0 [pid 6818] <... set_robust_list resumed>) = 0 [pid 6819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6819] <... prctl resumed>) = 0 [pid 6818] <... prctl resumed>) = 0 [pid 6819] setpgid(0, 0 [pid 6818] setpgid(0, 0 [pid 6819] <... setpgid resumed>) = 0 [pid 6818] <... setpgid resumed>) = 0 [pid 6819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6819] <... openat resumed>) = 3 [pid 6816] <... bpf resumed>) = 5 [pid 6815] <... bpf resumed>) = 5 [pid 6814] <... bpf resumed>) = 5 [pid 6819] write(3, "1000", 4 [pid 6818] write(3, "1000", 4 [pid 6816] exit_group(0 [pid 6815] exit_group(0 [pid 6814] exit_group(0 [pid 6819] <... write resumed>) = 4 [pid 6818] <... write resumed>) = 4 [pid 6818] close(3 [pid 6816] <... exit_group resumed>) = ? [pid 6814] <... exit_group resumed>) = ? executing program [pid 6819] close(3 [pid 6818] <... close resumed>) = 0 [pid 6816] +++ exited with 0 +++ [pid 6815] <... exit_group resumed>) = ? [pid 6819] <... close resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6816, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6818] write(1, "executing program\n", 18) = 18 [pid 6818] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6819] write(1, "executing program\n", 18 [pid 6818] <... bpf resumed>) = 3 [pid 6818] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6819] <... write resumed>) = 18 [pid 6818] <... bpf resumed>) = 4 [pid 6818] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6819] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6815] +++ exited with 0 +++ [pid 6814] +++ exited with 0 +++ [pid 6819] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6815, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6819] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6820 attached ) = 4 [pid 6820] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6820 [pid 6820] <... set_robust_list resumed>) = 0 [pid 6820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6819] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6821 attached ./strace-static-x86_64: Process 6822 attached [pid 6820] setpgid(0, 0) = 0 [pid 6822] set_robust_list(0x55556540f660, 24 [pid 6821] set_robust_list(0x55556540f660, 24 [pid 6820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6822] <... set_robust_list resumed>) = 0 [pid 6821] <... set_robust_list resumed>) = 0 [pid 6820] <... openat resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6822 [pid 6821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6821 [pid 6822] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 6821] <... prctl resumed>) = 0 [pid 6820] write(3, "1000", 4) = 4 [pid 6820] close(3) = 0 [pid 6822] <... prctl resumed>) = 0 [pid 6820] write(1, "executing program\n", 18 [pid 6821] setpgid(0, 0 [pid 6822] setpgid(0, 0 [pid 6821] <... setpgid resumed>) = 0 [pid 6820] <... write resumed>) = 18 [pid 6822] <... setpgid resumed>) = 0 [pid 6820] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6820] <... bpf resumed>) = 3 [pid 6822] <... openat resumed>) = 3 [pid 6821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6819] <... bpf resumed>) = 5 [pid 6818] <... bpf resumed>) = 5 [pid 6822] write(3, "1000", 4 [pid 6821] <... openat resumed>) = 3 [pid 6820] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6819] exit_group(0 [pid 6818] exit_group(0 [pid 6822] <... write resumed>) = 4 [pid 6819] <... exit_group resumed>) = ? [pid 6822] close(3) = 0 [pid 6821] write(3, "1000", 4 [pid 6820] <... bpf resumed>) = 4 [pid 6818] <... exit_group resumed>) = ? [pid 6822] write(1, "executing program\n", 18 [pid 6821] <... write resumed>) = 4 [pid 6819] +++ exited with 0 +++ executing program [pid 6818] +++ exited with 0 +++ [pid 6822] <... write resumed>) = 18 [pid 6821] close(3executing program ) = 0 [pid 6821] write(1, "executing program\n", 18 [pid 6820] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6822] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6821] <... write resumed>) = 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6819, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6818, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6821] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6822] <... bpf resumed>) = 3 [pid 6821] <... bpf resumed>) = 3 [pid 6822] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6821] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6822] <... bpf resumed>) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6822] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6821] <... bpf resumed>) = 4 [pid 6822] <... bpf resumed>) = 5 [pid 6820] <... bpf resumed>) = 5 [pid 6820] exit_group(0 [pid 6822] exit_group(0 [pid 6821] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6820] <... exit_group resumed>) = ? [pid 6822] <... exit_group resumed>) = ? [pid 6821] <... bpf resumed>) = 5 [pid 6820] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6821] exit_group(0) = ? ./strace-static-x86_64: Process 6824 attached ./strace-static-x86_64: Process 6823 attached [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6824] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6825 attached [pid 6823] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6824 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6823 [pid 6825] set_robust_list(0x55556540f660, 24 [pid 6824] <... set_robust_list resumed>) = 0 [pid 6823] <... set_robust_list resumed>) = 0 [pid 6825] <... set_robust_list resumed>) = 0 [pid 6824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6825 [pid 6825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6824] <... prctl resumed>) = 0 [pid 6823] <... prctl resumed>) = 0 [pid 6825] setpgid(0, 0 [pid 6824] setpgid(0, 0 [pid 6823] setpgid(0, 0 [pid 6824] <... setpgid resumed>) = 0 [pid 6825] <... setpgid resumed>) = 0 [pid 6824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6823] <... setpgid resumed>) = 0 [pid 6825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6825] <... openat resumed>) = 3 [pid 6824] <... openat resumed>) = 3 [pid 6822] +++ exited with 0 +++ [pid 6821] +++ exited with 0 +++ [pid 6825] write(3, "1000", 4 [pid 6824] write(3, "1000", 4 [pid 6823] <... openat resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6821, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6822, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6825] <... write resumed>) = 4 [pid 6824] <... write resumed>) = 4 [pid 6824] close(3 [pid 6825] close(3 [pid 6824] <... close resumed>) = 0 [pid 6823] write(3, "1000", 4 [pid 6825] <... close resumed>) = 0 executing program executing program [pid 6824] write(1, "executing program\n", 18 [pid 6823] <... write resumed>) = 4 [pid 6825] write(1, "executing program\n", 18 [pid 6824] <... write resumed>) = 18 [pid 6823] close(3 [pid 6825] <... write resumed>) = 18 [pid 6824] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6823] <... close resumed>) = 0 executing program [pid 6825] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6825] <... bpf resumed>) = 3 [pid 6824] <... bpf resumed>) = 3 [pid 6823] write(1, "executing program\n", 18 [pid 6825] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6824] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6823] <... write resumed>) = 18 ./strace-static-x86_64: Process 6827 attached ./strace-static-x86_64: Process 6826 attached [pid 6825] <... bpf resumed>) = 4 [pid 6823] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6827] set_robust_list(0x55556540f660, 24 [pid 6826] set_robust_list(0x55556540f660, 24 [pid 6824] <... bpf resumed>) = 4 [pid 6823] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6827 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6826 [pid 6827] <... set_robust_list resumed>) = 0 [pid 6826] <... set_robust_list resumed>) = 0 [pid 6823] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6826] <... prctl resumed>) = 0 [pid 6825] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6824] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6823] <... bpf resumed>) = 4 [pid 6827] setpgid(0, 0 [pid 6826] setpgid(0, 0 [pid 6823] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6827] <... setpgid resumed>) = 0 [pid 6826] <... setpgid resumed>) = 0 [pid 6825] <... bpf resumed>) = 5 [pid 6824] <... bpf resumed>) = 5 [pid 6827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6825] exit_group(0 [pid 6824] exit_group(0 [pid 6823] <... bpf resumed>) = 5 [pid 6827] <... openat resumed>) = 3 [pid 6826] <... openat resumed>) = 3 [pid 6825] <... exit_group resumed>) = ? [pid 6824] <... exit_group resumed>) = ? [pid 6823] exit_group(0 [pid 6827] write(3, "1000", 4 [pid 6825] +++ exited with 0 +++ [pid 6827] <... write resumed>) = 4 [pid 6826] write(3, "1000", 4 [pid 6823] <... exit_group resumed>) = ? [pid 6827] close(3 [pid 6826] <... write resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6825, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6826] close(3 [pid 6827] <... close resumed>) = 0 executing program executing program [pid 6826] <... close resumed>) = 0 [pid 6827] write(1, "executing program\n", 18 [pid 6826] write(1, "executing program\n", 18 [pid 6827] <... write resumed>) = 18 [pid 6826] <... write resumed>) = 18 [pid 6827] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6826] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6827] <... bpf resumed>) = 3 [pid 6826] <... bpf resumed>) = 3 [pid 6827] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6826] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6827] <... bpf resumed>) = 4 [pid 6826] <... bpf resumed>) = 4 [pid 6827] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6826] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6824] +++ exited with 0 +++ [pid 6823] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6824, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6823, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6829 attached ./strace-static-x86_64: Process 6828 attached [pid 6828] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 6830 attached [pid 6829] set_robust_list(0x55556540f660, 24 [pid 6828] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6830 [pid 6829] <... set_robust_list resumed>) = 0 [pid 6830] set_robust_list(0x55556540f660, 24 [pid 6829] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6828] <... prctl resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6828 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6829 [pid 6828] setpgid(0, 0) = 0 [pid 6830] <... set_robust_list resumed>) = 0 [pid 6829] <... prctl resumed>) = 0 [pid 6828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6829] setpgid(0, 0) = 0 [pid 6830] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6828] <... openat resumed>) = 3 [pid 6830] <... prctl resumed>) = 0 [pid 6829] <... openat resumed>) = 3 [pid 6828] write(3, "1000", 4 [pid 6827] <... bpf resumed>) = 5 [pid 6826] <... bpf resumed>) = 5 [pid 6830] setpgid(0, 0 [pid 6829] write(3, "1000", 4 [pid 6828] <... write resumed>) = 4 [pid 6826] exit_group(0 [pid 6830] <... setpgid resumed>) = 0 [pid 6829] <... write resumed>) = 4 [pid 6828] close(3 [pid 6827] exit_group(0 [pid 6830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6829] close(3 [pid 6828] <... close resumed>) = 0 [pid 6827] <... exit_group resumed>) = ? [pid 6826] <... exit_group resumed>) = ? [pid 6830] <... openat resumed>) = 3 [pid 6829] <... close resumed>) = 0 [pid 6828] write(1, "executing program\n", 18 [pid 6826] +++ exited with 0 +++ [pid 6827] +++ exited with 0 +++ executing program executing program [pid 6829] write(1, "executing program\n", 18 [pid 6828] <... write resumed>) = 18 [pid 6830] write(3, "1000", 4 [pid 6829] <... write resumed>) = 18 [pid 6828] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6826, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6830] <... write resumed>) = 4 [pid 6829] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6827, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6830] close(3 [pid 6829] <... bpf resumed>) = 3 [pid 6828] <... bpf resumed>) = 3 [pid 6830] <... close resumed>) = 0 [pid 6829] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6828] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6830] write(1, "executing program\n", 18executing program [pid 6829] <... bpf resumed>) = 4 [pid 6828] <... bpf resumed>) = 4 [pid 6830] <... write resumed>) = 18 [pid 6830] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6830] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6829] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6828] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6830] <... bpf resumed>) = 4 [pid 6829] <... bpf resumed>) = 5 [pid 6830] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6828] <... bpf resumed>) = 5 [pid 6830] <... bpf resumed>) = 5 [pid 6829] exit_group(0 [pid 6828] exit_group(0 [pid 6830] exit_group(0 [pid 6829] <... exit_group resumed>) = ? [pid 6828] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6829] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6831 attached [pid 6830] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6829, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6832 attached [pid 6831] set_robust_list(0x55556540f660, 24 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6832] set_robust_list(0x55556540f660, 24 [pid 6831] <... set_robust_list resumed>) = 0 [pid 6832] <... set_robust_list resumed>) = 0 [pid 6832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6831] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6830] +++ exited with 0 +++ [pid 6828] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6832 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6831 [pid 6832] <... prctl resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6830, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6832] setpgid(0, 0 [pid 6831] <... prctl resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6828, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6832] <... setpgid resumed>) = 0 [pid 6831] setpgid(0, 0 [pid 6832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6831] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6833 attached [pid 6832] <... openat resumed>) = 3 [pid 6832] write(3, "1000", 4) = 4 [pid 6832] close(3) = 0 executing program [pid 6832] write(1, "executing program\n", 18) = 18 [pid 6832] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6833 [pid 6832] <... bpf resumed>) = 3 [pid 6832] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6834 attached [pid 6833] set_robust_list(0x55556540f660, 24 [pid 6831] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6834] set_robust_list(0x55556540f660, 24 [pid 6833] <... set_robust_list resumed>) = 0 [pid 6832] <... bpf resumed>) = 4 [pid 6831] write(3, "1000", 4 [pid 6834] <... set_robust_list resumed>) = 0 [pid 6833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6833] <... prctl resumed>) = 0 [pid 6833] setpgid(0, 0./strace-static-x86_64: Process 6835 attached ) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6834 [pid 6834] <... prctl resumed>) = 0 [pid 6831] <... write resumed>) = 4 [pid 6834] setpgid(0, 0 [pid 6833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6831] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6835 [pid 6834] <... setpgid resumed>) = 0 [pid 6832] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6831] <... close resumed>) = 0 [pid 6835] set_robust_list(0x55556540f660, 24 [pid 6834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6833] <... openat resumed>) = 3 [pid 6832] <... bpf resumed>) = 5 [pid 6831] write(1, "executing program\n", 18executing program [pid 6835] <... set_robust_list resumed>) = 0 [pid 6834] <... openat resumed>) = 3 [pid 6833] write(3, "1000", 4 [pid 6831] <... write resumed>) = 18 [pid 6835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6833] <... write resumed>) = 4 [pid 6835] <... prctl resumed>) = 0 [pid 6833] close(3 [pid 6831] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6834] write(3, "1000", 4 [pid 6833] <... close resumed>) = 0 [pid 6835] setpgid(0, 0 [pid 6832] exit_group(0 [pid 6831] <... bpf resumed>) = 3 executing program [pid 6835] <... setpgid resumed>) = 0 [pid 6834] <... write resumed>) = 4 [pid 6833] write(1, "executing program\n", 18 [pid 6832] <... exit_group resumed>) = ? [pid 6835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6834] close(3 [pid 6833] <... write resumed>) = 18 [pid 6832] +++ exited with 0 +++ [pid 6831] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6835] <... openat resumed>) = 3 [pid 6834] <... close resumed>) = 0 [pid 6833] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6831] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6832, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 6835] write(3, "1000", 4 [pid 6834] write(1, "executing program\n", 18 [pid 6835] <... write resumed>) = 4 [pid 6834] <... write resumed>) = 18 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6834] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6833] <... bpf resumed>) = 3 [pid 6835] close(3 [pid 6834] <... bpf resumed>) = 3 [pid 6831] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6834] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6835] <... close resumed>) = 0 executing program [pid 6833] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6835] write(1, "executing program\n", 18 [pid 6834] <... bpf resumed>) = 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6835] <... write resumed>) = 18 [pid 6835] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6835] <... bpf resumed>) = 3 [pid 6834] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6833] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6836 attached [pid 6835] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6836] set_robust_list(0x55556540f660, 24 [pid 6833] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6836] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6836 [pid 6836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6835] <... bpf resumed>) = 4 [pid 6836] <... prctl resumed>) = 0 [pid 6835] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6836] setpgid(0, 0) = 0 [pid 6836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6836] write(3, "1000", 4) = 4 [pid 6836] close(3) = 0 executing program [pid 6836] write(1, "executing program\n", 18) = 18 [pid 6836] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6836] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6836] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6831] <... bpf resumed>) = 5 [pid 6834] <... bpf resumed>) = 5 [pid 6831] exit_group(0 [pid 6836] <... bpf resumed>) = 5 [pid 6835] <... bpf resumed>) = 5 [pid 6834] exit_group(0 [pid 6833] <... bpf resumed>) = 5 [pid 6833] exit_group(0 [pid 6831] <... exit_group resumed>) = ? [pid 6836] exit_group(0 [pid 6835] exit_group(0 [pid 6834] <... exit_group resumed>) = ? [pid 6833] <... exit_group resumed>) = ? [pid 6831] +++ exited with 0 +++ [pid 6833] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6831, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6834] +++ exited with 0 +++ [pid 6835] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6833, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6834, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6836] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6837 attached [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6838 attached ./strace-static-x86_64: Process 6839 attached [pid 6838] set_robust_list(0x55556540f660, 24 [pid 6839] set_robust_list(0x55556540f660, 24 [pid 6837] set_robust_list(0x55556540f660, 24 [pid 6836] +++ exited with 0 +++ [pid 6835] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6837 [pid 6838] <... set_robust_list resumed>) = 0 [pid 6839] <... set_robust_list resumed>) = 0 [pid 6837] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6838 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6836, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6839 [pid 6838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6839] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6835, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6838] <... prctl resumed>) = 0 [pid 6837] <... prctl resumed>) = 0 [pid 6839] <... prctl resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6838] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6840 attached [pid 6838] <... setpgid resumed>) = 0 [pid 6839] setpgid(0, 0 [pid 6837] setpgid(0, 0 [pid 6840] set_robust_list(0x55556540f660, 24 [pid 6838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6839] <... setpgid resumed>) = 0 [pid 6837] <... setpgid resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6840 ./strace-static-x86_64: Process 6841 attached [pid 6840] <... set_robust_list resumed>) = 0 [pid 6838] <... openat resumed>) = 3 [pid 6839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6841] set_robust_list(0x55556540f660, 24 [pid 6840] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6840] <... prctl resumed>) = 0 [pid 6839] <... openat resumed>) = 3 [pid 6841] <... set_robust_list resumed>) = 0 [pid 6838] write(3, "1000", 4 [pid 6837] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6841 [pid 6838] <... write resumed>) = 4 [pid 6841] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6840] setpgid(0, 0 [pid 6839] write(3, "1000", 4 [pid 6840] <... setpgid resumed>) = 0 [pid 6839] <... write resumed>) = 4 [pid 6840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6839] close(3 [pid 6838] close(3 [pid 6841] <... prctl resumed>) = 0 [pid 6837] write(3, "1000", 4 [pid 6838] <... close resumed>) = 0 [pid 6841] setpgid(0, 0 [pid 6838] write(1, "executing program\n", 18executing program [pid 6841] <... setpgid resumed>) = 0 [pid 6837] <... write resumed>) = 4 [pid 6838] <... write resumed>) = 18 [pid 6837] close(3 [pid 6840] <... openat resumed>) = 3 [pid 6838] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6839] <... close resumed>) = 0 [pid 6837] <... close resumed>) = 0 [pid 6841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6840] write(3, "1000", 4executing program [pid 6839] write(1, "executing program\n", 18 [pid 6840] <... write resumed>) = 4 [pid 6839] <... write resumed>) = 18 executing program [pid 6837] write(1, "executing program\n", 18 [pid 6840] close(3 [pid 6839] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6841] <... openat resumed>) = 3 [pid 6840] <... close resumed>) = 0 [pid 6838] <... bpf resumed>) = 3 executing program [pid 6839] <... bpf resumed>) = 3 [pid 6837] <... write resumed>) = 18 [pid 6840] write(1, "executing program\n", 18) = 18 [pid 6839] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6841] write(3, "1000", 4 [pid 6840] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6838] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6839] <... bpf resumed>) = 4 [pid 6837] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6841] <... write resumed>) = 4 [pid 6840] <... bpf resumed>) = 3 [pid 6839] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6840] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6838] <... bpf resumed>) = 4 [pid 6841] close(3 [pid 6837] <... bpf resumed>) = 3 [pid 6841] <... close resumed>) = 0 [pid 6840] <... bpf resumed>) = 4 [pid 6840] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6841] write(1, "executing program\n", 18 [pid 6838] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6839] <... bpf resumed>) = 5 [pid 6837] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6841] <... write resumed>) = 18 executing program [pid 6840] <... bpf resumed>) = 5 [pid 6838] <... bpf resumed>) = 5 [pid 6839] exit_group(0 [pid 6841] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6837] <... bpf resumed>) = 4 [pid 6841] <... bpf resumed>) = 3 [pid 6840] exit_group(0 [pid 6838] exit_group(0 [pid 6839] <... exit_group resumed>) = ? [pid 6837] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6841] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6840] <... exit_group resumed>) = ? [pid 6838] <... exit_group resumed>) = ? [pid 6839] +++ exited with 0 +++ [pid 6841] <... bpf resumed>) = 4 [pid 6840] +++ exited with 0 +++ [pid 6837] <... bpf resumed>) = 5 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6839, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6840, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6841] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6837] exit_group(0) = ? [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6842 attached [pid 6842] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6843 attached [pid 6841] <... bpf resumed>) = 5 [pid 6838] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6842 [pid 6843] set_robust_list(0x55556540f660, 24 [pid 6842] <... set_robust_list resumed>) = 0 [pid 6841] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6838, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6843 [pid 6843] <... set_robust_list resumed>) = 0 [pid 6842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6841] <... exit_group resumed>) = ? [pid 6843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6842] <... prctl resumed>) = 0 [pid 6843] <... prctl resumed>) = 0 [pid 6842] setpgid(0, 0 [pid 6843] setpgid(0, 0 [pid 6842] <... setpgid resumed>) = 0 [pid 6843] <... setpgid resumed>) = 0 [pid 6842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6844 ./strace-static-x86_64: Process 6844 attached [pid 6843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6842] <... openat resumed>) = 3 [pid 6844] set_robust_list(0x55556540f660, 24 [pid 6843] <... openat resumed>) = 3 [pid 6842] write(3, "1000", 4 [pid 6844] <... set_robust_list resumed>) = 0 [pid 6844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6843] write(3, "1000", 4 [pid 6842] <... write resumed>) = 4 [pid 6842] close(3 [pid 6844] <... prctl resumed>) = 0 [pid 6843] <... write resumed>) = 4 [pid 6842] <... close resumed>) = 0 [pid 6844] setpgid(0, 0 [pid 6843] close(3 [pid 6844] <... setpgid resumed>) = 0 executing program [pid 6843] <... close resumed>) = 0 [pid 6842] write(1, "executing program\n", 18 [pid 6844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6843] write(1, "executing program\n", 18 [pid 6842] <... write resumed>) = 18 executing program [pid 6843] <... write resumed>) = 18 [pid 6844] <... openat resumed>) = 3 [pid 6843] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6842] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6844] write(3, "1000", 4 [pid 6843] <... bpf resumed>) = 3 [pid 6842] <... bpf resumed>) = 3 [pid 6844] <... write resumed>) = 4 [pid 6843] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6842] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6844] close(3 [pid 6843] <... bpf resumed>) = 4 [pid 6842] <... bpf resumed>) = 4 [pid 6844] <... close resumed>) = 0 [pid 6844] write(1, "executing program\n", 18 executing program [pid 6843] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6844] <... write resumed>) = 18 [pid 6844] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6842] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6844] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6841] +++ exited with 0 +++ [pid 6837] +++ exited with 0 +++ [pid 6844] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6841, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6837, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6845 attached [pid 6845] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6845 [pid 6845] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6846 attached [pid 6845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6844] <... bpf resumed>) = 5 [pid 6843] <... bpf resumed>) = 5 [pid 6842] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6846 [pid 6845] <... prctl resumed>) = 0 [pid 6846] set_robust_list(0x55556540f660, 24 [pid 6845] setpgid(0, 0 [pid 6844] exit_group(0 [pid 6843] exit_group(0 [pid 6842] exit_group(0 [pid 6846] <... set_robust_list resumed>) = 0 [pid 6842] <... exit_group resumed>) = ? [pid 6846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6845] <... setpgid resumed>) = 0 [pid 6844] <... exit_group resumed>) = ? [pid 6843] <... exit_group resumed>) = ? [pid 6842] +++ exited with 0 +++ [pid 6846] <... prctl resumed>) = 0 [pid 6845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6846] setpgid(0, 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6846] <... setpgid resumed>) = 0 [pid 6846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6845] <... openat resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6845] write(3, "1000", 4 [pid 6846] write(3, "1000", 4 [pid 6845] <... write resumed>) = 4 [pid 6846] <... write resumed>) = 4 [pid 6845] close(3 [pid 6846] close(3 [pid 6845] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6846] <... close resumed>) = 0 executing program [pid 6845] write(1, "executing program\n", 18./strace-static-x86_64: Process 6847 attached [pid 6846] write(1, "executing program\n", 18 [pid 6845] <... write resumed>) = 18 executing program [pid 6846] <... write resumed>) = 18 [pid 6847] set_robust_list(0x55556540f660, 24 [pid 6846] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6845] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6847] <... set_robust_list resumed>) = 0 [pid 6846] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6847 [pid 6847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6846] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6847] <... prctl resumed>) = 0 [pid 6846] <... bpf resumed>) = 4 [pid 6845] <... bpf resumed>) = 3 [pid 6846] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6847] setpgid(0, 0 [pid 6845] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6844] +++ exited with 0 +++ [pid 6843] +++ exited with 0 +++ [pid 6847] <... setpgid resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6844, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6843, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6845] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6847] write(3, "1000", 4 [pid 6845] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6848 attached [pid 6847] <... write resumed>) = 4 [pid 6847] close(3executing program [pid 6848] set_robust_list(0x55556540f660, 24 [pid 6847] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6848 [pid 6848] <... set_robust_list resumed>) = 0 [pid 6847] write(1, "executing program\n", 18) = 18 [pid 6847] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6849 attached [pid 6848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6847] <... bpf resumed>) = 3 [pid 6849] set_robust_list(0x55556540f660, 24) = 0 [pid 6848] <... prctl resumed>) = 0 [pid 6847] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6849 [pid 6849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6848] setpgid(0, 0) = 0 [pid 6847] <... bpf resumed>) = 4 [pid 6849] <... prctl resumed>) = 0 [pid 6849] setpgid(0, 0) = 0 [pid 6848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6848] <... openat resumed>) = 3 [pid 6847] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6848] write(3, "1000", 4) = 4 [pid 6849] write(3, "1000", 4) = 4 [pid 6848] close(3 [pid 6846] <... bpf resumed>) = 5 [pid 6849] close(3 [pid 6848] <... close resumed>) = 0 [pid 6849] <... close resumed>) = 0 [pid 6848] write(1, "executing program\n", 18 [pid 6849] write(1, "executing program\n", 18executing program executing program ) = 18 [pid 6846] exit_group(0 [pid 6849] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6848] <... write resumed>) = 18 [pid 6845] <... bpf resumed>) = 5 [pid 6849] <... bpf resumed>) = 3 [pid 6848] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6847] <... bpf resumed>) = 5 [pid 6846] <... exit_group resumed>) = ? [pid 6845] exit_group(0 [pid 6849] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6848] <... bpf resumed>) = 3 [pid 6847] exit_group(0 [pid 6846] +++ exited with 0 +++ [pid 6845] <... exit_group resumed>) = ? [pid 6849] <... bpf resumed>) = 4 [pid 6848] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6847] <... exit_group resumed>) = ? [pid 6849] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6848] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6846, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6848] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6845] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6845, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 6850 attached [pid 6847] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6847, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6850 [pid 6850] set_robust_list(0x55556540f660, 24 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6850] <... set_robust_list resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6850] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6852 attached ./strace-static-x86_64: Process 6851 attached [pid 6852] set_robust_list(0x55556540f660, 24) = 0 [pid 6851] set_robust_list(0x55556540f660, 24 [pid 6850] <... prctl resumed>) = 0 [pid 6852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6851] <... set_robust_list resumed>) = 0 [pid 6852] <... prctl resumed>) = 0 [pid 6850] setpgid(0, 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6852 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6851 [pid 6852] setpgid(0, 0 [pid 6851] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6850] <... setpgid resumed>) = 0 [pid 6852] <... setpgid resumed>) = 0 [pid 6851] <... prctl resumed>) = 0 [pid 6852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6851] setpgid(0, 0 [pid 6850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6851] <... setpgid resumed>) = 0 [pid 6852] <... openat resumed>) = 3 [pid 6851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6852] write(3, "1000", 4 [pid 6850] <... openat resumed>) = 3 [pid 6849] <... bpf resumed>) = 5 [pid 6848] <... bpf resumed>) = 5 [pid 6852] <... write resumed>) = 4 [pid 6851] write(3, "1000", 4 [pid 6850] write(3, "1000", 4 [pid 6848] exit_group(0 [pid 6852] close(3 [pid 6851] <... write resumed>) = 4 [pid 6850] <... write resumed>) = 4 [pid 6849] exit_group(0 [pid 6852] <... close resumed>) = 0 [pid 6851] close(3 [pid 6850] close(3 [pid 6848] <... exit_group resumed>) = ? [pid 6852] write(1, "executing program\n", 18 [pid 6851] <... close resumed>) = 0 executing program executing program executing program [pid 6850] <... close resumed>) = 0 [pid 6849] <... exit_group resumed>) = ? [pid 6848] +++ exited with 0 +++ [pid 6850] write(1, "executing program\n", 18) = 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6848, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6852] <... write resumed>) = 18 [pid 6851] write(1, "executing program\n", 18 [pid 6852] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6851] <... write resumed>) = 18 [pid 6852] <... bpf resumed>) = 3 [pid 6851] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6852] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6851] <... bpf resumed>) = 3 [pid 6849] +++ exited with 0 +++ [pid 6852] <... bpf resumed>) = 4 [pid 6851] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6850] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6851] <... bpf resumed>) = 4 [pid 6850] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6849, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6852] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6850] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6851] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6850] <... bpf resumed>) = 4 [pid 6850] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6853 attached [pid 6853] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6854 attached [pid 6852] <... bpf resumed>) = 5 [pid 6851] <... bpf resumed>) = 5 [pid 6850] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6853 [pid 6854] set_robust_list(0x55556540f660, 24 [pid 6853] <... set_robust_list resumed>) = 0 [pid 6852] exit_group(0 [pid 6851] exit_group(0 [pid 6850] exit_group(0 [pid 6854] <... set_robust_list resumed>) = 0 [pid 6853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6852] <... exit_group resumed>) = ? [pid 6851] <... exit_group resumed>) = ? [pid 6850] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6854 [pid 6854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6853] <... prctl resumed>) = 0 [pid 6852] +++ exited with 0 +++ [pid 6851] +++ exited with 0 +++ [pid 6850] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6852, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6851, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6854] <... prctl resumed>) = 0 [pid 6853] setpgid(0, 0 [pid 6854] setpgid(0, 0 [pid 6853] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6850, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6854] <... setpgid resumed>) = 0 [pid 6853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6853] <... openat resumed>) = 3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6854] <... openat resumed>) = 3 [pid 6853] write(3, "1000", 4 [pid 6854] write(3, "1000", 4 [pid 6853] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6854] <... write resumed>) = 4 [pid 6853] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6855 attached [pid 6854] close(3 [pid 6853] <... close resumed>) = 0 ./strace-static-x86_64: Process 6857 attached ./strace-static-x86_64: Process 6856 attached executing program [pid 6855] set_robust_list(0x55556540f660, 24 [pid 6854] <... close resumed>) = 0 [pid 6853] write(1, "executing program\n", 18 [pid 6857] set_robust_list(0x55556540f660, 24 [pid 6856] set_robust_list(0x55556540f660, 24 [pid 6855] <... set_robust_list resumed>) = 0 [pid 6854] write(1, "executing program\n", 18 [pid 6853] <... write resumed>) = 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6856 executing program [pid 6854] <... write resumed>) = 18 [pid 6853] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6855 [pid 6857] <... set_robust_list resumed>) = 0 [pid 6856] <... set_robust_list resumed>) = 0 [pid 6855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6854] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6853] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6857 [pid 6857] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6855] <... prctl resumed>) = 0 [pid 6854] <... bpf resumed>) = 3 [pid 6853] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6857] <... prctl resumed>) = 0 [pid 6856] <... prctl resumed>) = 0 [pid 6855] setpgid(0, 0 [pid 6854] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6857] setpgid(0, 0 [pid 6855] <... setpgid resumed>) = 0 [pid 6857] <... setpgid resumed>) = 0 [pid 6856] setpgid(0, 0 [pid 6854] <... bpf resumed>) = 4 [pid 6853] <... bpf resumed>) = 4 [pid 6857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6856] <... setpgid resumed>) = 0 [pid 6855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6854] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6853] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6857] <... openat resumed>) = 3 [pid 6856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6855] <... openat resumed>) = 3 [pid 6854] <... bpf resumed>) = 5 [pid 6853] <... bpf resumed>) = 5 [pid 6857] write(3, "1000", 4 [pid 6856] <... openat resumed>) = 3 [pid 6855] write(3, "1000", 4 [pid 6857] <... write resumed>) = 4 [pid 6854] exit_group(0 [pid 6857] close(3 [pid 6855] <... write resumed>) = 4 [pid 6854] <... exit_group resumed>) = ? [pid 6857] <... close resumed>) = 0 [pid 6855] close(3executing program [pid 6857] write(1, "executing program\n", 18 [pid 6856] write(3, "1000", 4 [pid 6855] <... close resumed>) = 0 [pid 6853] exit_group(0 [pid 6857] <... write resumed>) = 18 [pid 6856] <... write resumed>) = 4 [pid 6855] write(1, "executing program\n", 18 [pid 6856] close(3executing program [pid 6853] <... exit_group resumed>) = ? [pid 6857] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6856] <... close resumed>) = 0 [pid 6855] <... write resumed>) = 18 [pid 6854] +++ exited with 0 +++ [pid 6853] +++ exited with 0 +++ executing program [pid 6856] write(1, "executing program\n", 18 [pid 6855] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6857] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6853, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6856] <... write resumed>) = 18 [pid 6856] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6857] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6856] <... bpf resumed>) = 3 [pid 6855] <... bpf resumed>) = 3 [pid 6856] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6857] <... bpf resumed>) = 4 [pid 6856] <... bpf resumed>) = 4 [pid 6855] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6857] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6856] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6855] <... bpf resumed>) = 4 [pid 6855] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6858 attached [pid 6857] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6856] <... bpf resumed>) = 5 [pid 6858] set_robust_list(0x55556540f660, 24 [pid 6856] exit_group(0 [pid 6855] <... bpf resumed>) = 5 [pid 6855] exit_group(0) = ? ./strace-static-x86_64: Process 6859 attached [pid 6858] <... set_robust_list resumed>) = 0 [pid 6856] <... exit_group resumed>) = ? [pid 6857] exit_group(0 [pid 6858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6857] <... exit_group resumed>) = ? [pid 6856] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6859 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6858 [pid 6859] set_robust_list(0x55556540f660, 24 [pid 6858] <... prctl resumed>) = 0 [pid 6859] <... set_robust_list resumed>) = 0 [pid 6859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6858] setpgid(0, 0 [pid 6855] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6856, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6859] <... prctl resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6855, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6859] setpgid(0, 0 [pid 6857] +++ exited with 0 +++ [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6859] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6857, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6859] <... openat resumed>) = 3 [pid 6858] <... setpgid resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... restart_syscall resumed>) = 0 [pid 6859] write(3, "1000", 4) = 4 [pid 6858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... restart_syscall resumed>) = 0 [pid 6859] close(3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6860 attached [pid 6859] <... close resumed>) = 0 [pid 6858] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6859] write(1, "executing program\n", 18 [pid 6858] write(3, "1000", 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6860] set_robust_list(0x55556540f660, 24 [pid 6858] <... write resumed>) = 4 [pid 6859] <... write resumed>) = 18 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6860 executing program [pid 6859] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6862 attached ./strace-static-x86_64: Process 6861 attached [pid 6860] <... set_robust_list resumed>) = 0 [pid 6859] <... bpf resumed>) = 3 [pid 6858] close(3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6861 [pid 6862] set_robust_list(0x55556540f660, 24 [pid 6860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6859] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6858] <... close resumed>) = 0 [pid 6861] set_robust_list(0x55556540f660, 24 [pid 6860] <... prctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6862 [pid 6862] <... set_robust_list resumed>) = 0 executing program [pid 6861] <... set_robust_list resumed>) = 0 [pid 6860] setpgid(0, 0 [pid 6859] <... bpf resumed>) = 4 [pid 6858] write(1, "executing program\n", 18 [pid 6862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6860] <... setpgid resumed>) = 0 [pid 6858] <... write resumed>) = 18 [pid 6861] <... prctl resumed>) = 0 [pid 6862] setpgid(0, 0) = 0 [pid 6860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6858] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6861] setpgid(0, 0 [pid 6859] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6862] <... openat resumed>) = 3 [pid 6861] <... setpgid resumed>) = 0 [pid 6860] <... openat resumed>) = 3 [pid 6859] <... bpf resumed>) = 5 [pid 6858] <... bpf resumed>) = 3 [pid 6862] write(3, "1000", 4) = 4 [pid 6861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6860] write(3, "1000", 4 [pid 6858] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6861] <... openat resumed>) = 3 [pid 6860] <... write resumed>) = 4 [pid 6862] close(3 [pid 6859] exit_group(0 [pid 6862] <... close resumed>) = 0 [pid 6859] <... exit_group resumed>) = ? [pid 6862] write(1, "executing program\n", 18executing program [pid 6861] write(3, "1000", 4 [pid 6860] close(3 [pid 6859] +++ exited with 0 +++ [pid 6858] <... bpf resumed>) = 4 [pid 6862] <... write resumed>) = 18 [pid 6861] <... write resumed>) = 4 [pid 6860] <... close resumed>) = 0 [pid 6862] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6862] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6861] close(3 [pid 6860] write(1, "executing program\n", 18 executing program executing program [pid 6858] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6859, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6861] <... close resumed>) = 0 [pid 6860] <... write resumed>) = 18 [pid 6861] write(1, "executing program\n", 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6862] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6861] <... write resumed>) = 18 [pid 6860] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6861] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6858] <... bpf resumed>) = 5 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6860] <... bpf resumed>) = 3 [pid 6862] <... bpf resumed>) = 5 [pid 6861] <... bpf resumed>) = 3 [pid 6862] exit_group(0) = ? [pid 6862] +++ exited with 0 +++ [pid 6861] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6860] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6858] exit_group(0) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6862, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6863 attached [pid 6863] set_robust_list(0x55556540f660, 24) = 0 [pid 6861] <... bpf resumed>) = 4 [pid 6860] <... bpf resumed>) = 4 [pid 6858] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6863 [pid 6863] setpgid(0, 0./strace-static-x86_64: Process 6864 attached ) = 0 [pid 6861] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6860] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6858, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6864] set_robust_list(0x55556540f660, 24 [pid 6863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6864 [pid 6864] <... set_robust_list resumed>) = 0 [pid 6861] <... bpf resumed>) = 5 [pid 6860] <... bpf resumed>) = 5 [pid 6864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6863] <... openat resumed>) = 3 [pid 6861] exit_group(0 [pid 6860] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6864] <... prctl resumed>) = 0 [pid 6863] write(3, "1000", 4 [pid 6861] <... exit_group resumed>) = ? [pid 6860] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6865 attached [pid 6864] setpgid(0, 0 [pid 6863] <... write resumed>) = 4 [pid 6865] set_robust_list(0x55556540f660, 24 [pid 6864] <... setpgid resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6865 [pid 6865] <... set_robust_list resumed>) = 0 [pid 6864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6865] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6860] +++ exited with 0 +++ [pid 6865] <... prctl resumed>) = 0 [pid 6864] <... openat resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6860, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6865] setpgid(0, 0 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6865] <... setpgid resumed>) = 0 [pid 6865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6864] write(3, "1000", 4) = 4 [pid 6864] close(3 [pid 6865] <... openat resumed>) = 3 [pid 6864] <... close resumed>) = 0 [pid 6861] +++ exited with 0 +++ executing program [pid 6864] write(1, "executing program\n", 18) = 18 [pid 6864] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6865] write(3, "1000", 4 [pid 6863] close(3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6865] <... write resumed>) = 4 [pid 6864] <... bpf resumed>) = 3 [pid 6863] <... close resumed>) = 0 [pid 6865] close(3 [pid 6863] write(1, "executing program\n", 18executing program [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6861, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6865] <... close resumed>) = 0 [pid 6864] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6863] <... write resumed>) = 18 [pid 6865] write(1, "executing program\n", 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6865] <... write resumed>) = 18 [pid 6863] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6865] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6864] <... bpf resumed>) = 4 [pid 6863] <... bpf resumed>) = 3 [pid 6863] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6866 attached [pid 6864] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6866] set_robust_list(0x55556540f660, 24 [pid 6865] <... bpf resumed>) = 3 [pid 6866] <... set_robust_list resumed>) = 0 [pid 6866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6865] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6864] <... bpf resumed>) = 5 [pid 6863] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6866 [pid 6866] <... prctl resumed>) = 0 [pid 6863] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6867 attached [pid 6866] setpgid(0, 0 [pid 6865] <... bpf resumed>) = 4 [pid 6864] exit_group(0 [pid 6863] <... bpf resumed>) = 5 [pid 6866] <... setpgid resumed>) = 0 [pid 6866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6867] set_robust_list(0x55556540f660, 24 [pid 6865] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6864] <... exit_group resumed>) = ? [pid 6863] exit_group(0 [pid 6867] <... set_robust_list resumed>) = 0 [pid 6866] <... openat resumed>) = 3 [pid 6865] <... bpf resumed>) = 5 [pid 6866] write(3, "1000", 4 [pid 6863] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6867 [pid 6867] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6866] <... write resumed>) = 4 executing program [pid 6865] exit_group(0 [pid 6863] +++ exited with 0 +++ [pid 6867] <... prctl resumed>) = 0 [pid 6866] close(3 [pid 6865] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6863, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6867] setpgid(0, 0 [pid 6866] <... close resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6866] write(1, "executing program\n", 18) = 18 [pid 6866] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6867] <... setpgid resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6866] <... bpf resumed>) = 3 [pid 6867] <... openat resumed>) = 3 [pid 6867] write(3, "1000", 4) = 4 [pid 6867] close(3 [pid 6866] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6867] <... close resumed>) = 0 [pid 6866] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6868 attached [pid 6867] write(1, "executing program\n", 18 [pid 6868] set_robust_list(0x55556540f660, 24) = 0 [pid 6867] <... write resumed>) = 18 [pid 6866] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6865] +++ exited with 0 +++ [pid 6864] +++ exited with 0 +++ [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6868 [pid 6868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6867] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6865, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6868] <... prctl resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6864, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6868] setpgid(0, 0) = 0 [pid 6867] <... bpf resumed>) = 3 [pid 6868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6868] <... openat resumed>) = 3 executing program [pid 6867] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6869 attached [pid 6868] write(3, "1000", 4) = 4 [pid 6868] close(3) = 0 [pid 6868] write(1, "executing program\n", 18) = 18 [pid 6868] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6869 [pid 6869] set_robust_list(0x55556540f660, 24 [pid 6868] <... bpf resumed>) = 3 [pid 6867] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6868] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6869] <... set_robust_list resumed>) = 0 [pid 6868] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 6870 attached [pid 6869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6867] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6870] set_robust_list(0x55556540f660, 24 [pid 6868] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6870] <... set_robust_list resumed>) = 0 [pid 6869] <... prctl resumed>) = 0 [pid 6866] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6870 [pid 6869] setpgid(0, 0) = 0 [pid 6870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6868] <... bpf resumed>) = 5 [pid 6867] <... bpf resumed>) = 5 [pid 6866] exit_group(0 [pid 6870] <... prctl resumed>) = 0 [pid 6867] exit_group(0 [pid 6870] setpgid(0, 0 [pid 6868] exit_group(0 [pid 6867] <... exit_group resumed>) = ? [pid 6866] <... exit_group resumed>) = ? [pid 6870] <... setpgid resumed>) = 0 [pid 6869] <... openat resumed>) = 3 [pid 6868] <... exit_group resumed>) = ? [pid 6866] +++ exited with 0 +++ [pid 6870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6869] write(3, "1000", 4 [pid 6870] <... openat resumed>) = 3 [pid 6869] <... write resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6870] write(3, "1000", 4 [pid 6869] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6870] <... write resumed>) = 4 [pid 6869] <... close resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 executing program [pid 6870] close(3 [pid 6869] write(1, "executing program\n", 18 [pid 6870] <... close resumed>) = 0 [pid 6869] <... write resumed>) = 18 [pid 6870] write(1, "executing program\n", 18executing program ) = 18 [pid 6869] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6870] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6871 attached ) = 3 [pid 6869] <... bpf resumed>) = 3 [pid 6868] +++ exited with 0 +++ [pid 6867] +++ exited with 0 +++ [pid 6871] set_robust_list(0x55556540f660, 24 [pid 6869] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6867, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6868, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6871] <... set_robust_list resumed>) = 0 [pid 6870] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6870] <... bpf resumed>) = 4 [pid 6869] <... bpf resumed>) = 4 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6871] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6871 [pid 6871] <... setpgid resumed>) = 0 [pid 6869] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6870] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6871] <... openat resumed>) = 3 [pid 6871] write(3, "1000", 4) = 4 [pid 6871] close(3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6872 attached ./strace-static-x86_64: Process 6873 attached [pid 6871] <... close resumed>) = 0 executing program [pid 6871] write(1, "executing program\n", 18) = 18 [pid 6873] set_robust_list(0x55556540f660, 24 [pid 6872] set_robust_list(0x55556540f660, 24 [pid 6871] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6870] <... bpf resumed>) = 5 [pid 6869] <... bpf resumed>) = 5 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6872 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6873 [pid 6873] <... set_robust_list resumed>) = 0 [pid 6872] <... set_robust_list resumed>) = 0 [pid 6873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6872] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6871] <... bpf resumed>) = 3 [pid 6870] exit_group(0 [pid 6869] exit_group(0 [pid 6872] <... prctl resumed>) = 0 [pid 6869] <... exit_group resumed>) = ? [pid 6873] <... prctl resumed>) = 0 [pid 6872] setpgid(0, 0 [pid 6871] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6870] <... exit_group resumed>) = ? [pid 6873] setpgid(0, 0 [pid 6872] <... setpgid resumed>) = 0 [pid 6871] <... bpf resumed>) = 4 [pid 6873] <... setpgid resumed>) = 0 [pid 6872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6872] <... openat resumed>) = 3 [pid 6873] <... openat resumed>) = 3 [pid 6872] write(3, "1000", 4 [pid 6871] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6873] write(3, "1000", 4) = 4 [pid 6872] <... write resumed>) = 4 [pid 6873] close(3executing program [pid 6872] close(3 [pid 6873] <... close resumed>) = 0 [pid 6873] write(1, "executing program\n", 18) = 18 [pid 6872] <... close resumed>) = 0 [pid 6873] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6872] write(1, "executing program\n", 18executing program ) = 18 [pid 6872] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6873] <... bpf resumed>) = 3 [pid 6873] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6872] <... bpf resumed>) = 3 [pid 6873] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6872] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6872] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6869] +++ exited with 0 +++ [pid 6870] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6869, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6870, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6873] <... bpf resumed>) = 5 [pid 6872] <... bpf resumed>) = 5 [pid 6871] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6874 attached [pid 6873] exit_group(0 [pid 6872] exit_group(0 [pid 6871] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6874] set_robust_list(0x55556540f660, 24 [pid 6873] <... exit_group resumed>) = ? [pid 6871] <... exit_group resumed>) = ? [pid 6872] <... exit_group resumed>) = ? [pid 6871] +++ exited with 0 +++ ./strace-static-x86_64: Process 6875 attached [pid 6874] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6874 [pid 6874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6871, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6874] <... prctl resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6875 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6874] setpgid(0, 0) = 0 [pid 6875] set_robust_list(0x55556540f660, 24 [pid 6874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6875] <... set_robust_list resumed>) = 0 [pid 6875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6874] <... openat resumed>) = 3 [pid 6875] setpgid(0, 0 [pid 6874] write(3, "1000", 4 [pid 6875] <... setpgid resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6874] <... write resumed>) = 4 [pid 6875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6874] close(3) = 0 [pid 6873] +++ exited with 0 +++ [pid 6872] +++ exited with 0 +++ [pid 6875] <... openat resumed>) = 3 [pid 6874] write(1, "executing program\n", 18executing program ) = 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6873, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6875] write(3, "1000", 4 [pid 6874] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6875] <... write resumed>) = 4 [pid 6874] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6876 attached [pid 6875] close(3 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6875] <... close resumed>) = 0 [pid 6876] set_robust_list(0x55556540f660, 24 [pid 6874] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6876] <... set_robust_list resumed>) = 0 executing program [pid 6875] write(1, "executing program\n", 18 [pid 6874] <... bpf resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6876 [pid 6876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6875] <... write resumed>) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6878 attached ./strace-static-x86_64: Process 6877 attached [pid 6876] <... prctl resumed>) = 0 [pid 6874] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6876] setpgid(0, 0 [pid 6877] set_robust_list(0x55556540f660, 24 [pid 6876] <... setpgid resumed>) = 0 [pid 6875] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6878] set_robust_list(0x55556540f660, 24 [pid 6877] <... set_robust_list resumed>) = 0 [pid 6876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6878] <... set_robust_list resumed>) = 0 [pid 6875] <... bpf resumed>) = 3 [pid 6878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6876] <... openat resumed>) = 3 [pid 6875] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6877 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6878 [pid 6877] <... prctl resumed>) = 0 [pid 6878] <... prctl resumed>) = 0 [pid 6877] setpgid(0, 0 [pid 6876] write(3, "1000", 4 [pid 6878] setpgid(0, 0 [pid 6876] <... write resumed>) = 4 [pid 6878] <... setpgid resumed>) = 0 [pid 6876] close(3 [pid 6878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6877] <... setpgid resumed>) = 0 [pid 6876] <... close resumed>) = 0 [pid 6875] <... bpf resumed>) = 4 [pid 6874] <... bpf resumed>) = 5 [pid 6878] <... openat resumed>) = 3 [pid 6877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6876] write(1, "executing program\n", 18 [pid 6875] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6876] <... write resumed>) = 18 [pid 6874] exit_group(0 [pid 6878] write(3, "1000", 4 [pid 6876] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6875] <... bpf resumed>) = 5 [pid 6877] <... openat resumed>) = 3 [pid 6878] <... write resumed>) = 4 [pid 6877] write(3, "1000", 4 [pid 6876] <... bpf resumed>) = 3 [pid 6875] exit_group(0 [pid 6874] <... exit_group resumed>) = ? [pid 6878] close(3 [pid 6877] <... write resumed>) = 4 [pid 6876] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6875] <... exit_group resumed>) = ? [pid 6878] <... close resumed>) = 0 [pid 6877] close(3 [pid 6876] <... bpf resumed>) = 4 [pid 6878] write(1, "executing program\n", 18 [pid 6877] <... close resumed>) = 0 executing program executing program [pid 6878] <... write resumed>) = 18 [pid 6877] write(1, "executing program\n", 18 [pid 6878] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6877] <... write resumed>) = 18 [pid 6876] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6878] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6877] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6878] <... bpf resumed>) = 4 [pid 6877] <... bpf resumed>) = 3 [pid 6878] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6877] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6877] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6876] <... bpf resumed>) = 5 [pid 6874] +++ exited with 0 +++ [pid 6876] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6874, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6876] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6879 attached [pid 6879] set_robust_list(0x55556540f660, 24 [pid 6878] <... bpf resumed>) = 5 [pid 6877] <... bpf resumed>) = 5 [pid 6876] +++ exited with 0 +++ [pid 6875] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6879 [pid 6879] <... set_robust_list resumed>) = 0 [pid 6878] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6875, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6876, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6878] <... exit_group resumed>) = ? [pid 6877] exit_group(0 [pid 6879] <... prctl resumed>) = 0 [pid 6877] <... exit_group resumed>) = ? [pid 6879] setpgid(0, 0) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6880 attached ) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6881 attached [pid 6880] set_robust_list(0x55556540f660, 24 [pid 6879] write(3, "1000", 4 [pid 6878] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6880 [pid 6881] set_robust_list(0x55556540f660, 24 [pid 6880] <... set_robust_list resumed>) = 0 [pid 6879] <... write resumed>) = 4 [pid 6877] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6878, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6881] <... set_robust_list resumed>) = 0 [pid 6880] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6879] close(3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6881 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6877, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6879] <... close resumed>) = 0 [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6881] <... prctl resumed>) = 0 [pid 6880] <... prctl resumed>) = 0 [pid 6879] write(1, "executing program\n", 18 [pid 6881] setpgid(0, 0 [pid 6879] <... write resumed>) = 18 [pid 6881] <... setpgid resumed>) = 0 [pid 6880] setpgid(0, 0 [pid 6881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6880] <... setpgid resumed>) = 0 [pid 6879] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6881] <... openat resumed>) = 3 [pid 6880] <... openat resumed>) = 3 [pid 6881] write(3, "1000", 4) = 4 [pid 6879] <... bpf resumed>) = 3 [pid 6881] close(3) = 0 [pid 6881] write(1, "executing program\n", 18 [pid 6880] write(3, "1000", 4 executing program [pid 6879] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6881] <... write resumed>) = 18 [pid 6880] <... write resumed>) = 4 [pid 6881] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6880] close(3 [pid 6881] <... bpf resumed>) = 3 [pid 6880] <... close resumed>) = 0 [pid 6879] <... bpf resumed>) = 4 [pid 6881] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6880] write(1, "executing program\n", 18 [pid 6879] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6882 attached [pid 6881] <... bpf resumed>) = 4 [pid 6880] <... write resumed>) = 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6880] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6879] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 6883 attached [pid 6882] set_robust_list(0x55556540f660, 24 [pid 6879] exit_group(0 [pid 6882] <... set_robust_list resumed>) = 0 [pid 6879] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6882 [pid 6883] set_robust_list(0x55556540f660, 24 [pid 6882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6881] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6880] <... bpf resumed>) = 3 [pid 6879] +++ exited with 0 +++ [pid 6883] <... set_robust_list resumed>) = 0 [pid 6882] <... prctl resumed>) = 0 [pid 6880] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6879, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6882] setpgid(0, 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6883 [pid 6883] <... prctl resumed>) = 0 [pid 6882] <... setpgid resumed>) = 0 [pid 6883] setpgid(0, 0 [pid 6882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6880] <... bpf resumed>) = 4 [pid 6883] <... setpgid resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6882] write(3, "1000", 4) = 4 [pid 6883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6882] close(3 [pid 6880] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6882] <... close resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6884 attached [pid 6883] <... openat resumed>) = 3 executing program [pid 6882] write(1, "executing program\n", 18 [pid 6884] set_robust_list(0x55556540f660, 24 [pid 6882] <... write resumed>) = 18 [pid 6884] <... set_robust_list resumed>) = 0 [pid 6882] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6883] write(3, "1000", 4 [pid 6884] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6883] <... write resumed>) = 4 [pid 6882] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6884 [pid 6884] <... prctl resumed>) = 0 [pid 6883] close(3 [pid 6881] <... bpf resumed>) = 5 [pid 6884] setpgid(0, 0 [pid 6883] <... close resumed>) = 0 [pid 6882] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6883] write(1, "executing program\n", 18 [pid 6880] <... bpf resumed>) = 5 [pid 6884] <... setpgid resumed>) = 0 [pid 6883] <... write resumed>) = 18 [pid 6882] <... bpf resumed>) = 4 [pid 6881] exit_group(0 [pid 6880] exit_group(0 [pid 6884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6883] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6881] <... exit_group resumed>) = ? [pid 6880] <... exit_group resumed>) = ? [pid 6884] write(3, "1000", 4 [pid 6882] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6884] <... write resumed>) = 4 [pid 6882] <... bpf resumed>) = 5 [pid 6884] close(3 [pid 6882] exit_group(0 [pid 6884] <... close resumed>) = 0 [pid 6882] <... exit_group resumed>) = ? [pid 6884] write(1, "executing program\n", 18 [pid 6881] +++ exited with 0 +++ [pid 6884] <... write resumed>) = 18 [pid 6884] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6883] <... bpf resumed>) = 3 [pid 6884] <... bpf resumed>) = 3 [pid 6884] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6883] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6881, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6884] <... bpf resumed>) = 4 [pid 5847] <... restart_syscall resumed>) = 0 [pid 6884] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6883] <... bpf resumed>) = 4 [pid 6883] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6882] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6882, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6880] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6884] <... bpf resumed>) = 5 [pid 6883] <... bpf resumed>) = 5 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6880, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6885 attached [pid 6885] set_robust_list(0x55556540f660, 24 [pid 6884] exit_group(0 [pid 6883] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6885] <... set_robust_list resumed>) = 0 [pid 6884] <... exit_group resumed>) = ? [pid 6883] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6886 attached [pid 6885] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6885 [pid 6885] <... prctl resumed>) = 0 [pid 6886] set_robust_list(0x55556540f660, 24 [pid 6885] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6886 [pid 6886] <... set_robust_list resumed>) = 0 [pid 6885] <... setpgid resumed>) = 0 [pid 6886] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6884] +++ exited with 0 +++ [pid 6886] <... prctl resumed>) = 0 [pid 6885] <... openat resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6886] setpgid(0, 0) = 0 [pid 6886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6885] write(3, "1000", 4 [pid 6883] +++ exited with 0 +++ [pid 6885] <... write resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6883, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6885] close(3 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6886] <... openat resumed>) = 3 [pid 6885] <... close resumed>) = 0 executing program [pid 6885] write(1, "executing program\n", 18./strace-static-x86_64: Process 6887 attached [pid 6886] write(3, "1000", 4 [pid 6885] <... write resumed>) = 18 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6886] <... write resumed>) = 4 [pid 6885] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6887] set_robust_list(0x55556540f660, 24 [pid 6886] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6887 [pid 6887] <... set_robust_list resumed>) = 0 [pid 6886] <... close resumed>) = 0 [pid 6887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6885] <... bpf resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6886] write(1, "executing program\n", 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6887] <... prctl resumed>) = 0 [pid 6885] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program ./strace-static-x86_64: Process 6888 attached [pid 6887] setpgid(0, 0 [pid 6885] <... bpf resumed>) = 4 [pid 6888] set_robust_list(0x55556540f660, 24 [pid 6887] <... setpgid resumed>) = 0 [pid 6886] <... write resumed>) = 18 [pid 6887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6886] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6889 attached [pid 6885] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6888 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6889 [pid 6886] <... bpf resumed>) = 3 [pid 6889] set_robust_list(0x55556540f660, 24 [pid 6888] <... set_robust_list resumed>) = 0 [pid 6887] <... openat resumed>) = 3 [pid 6886] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6889] <... set_robust_list resumed>) = 0 [pid 6888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6887] write(3, "1000", 4 [pid 6886] <... bpf resumed>) = 4 [pid 6887] <... write resumed>) = 4 [pid 6888] <... prctl resumed>) = 0 [pid 6889] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6888] setpgid(0, 0 [pid 6887] close(3 [pid 6889] <... prctl resumed>) = 0 executing program [pid 6889] setpgid(0, 0 [pid 6888] <... setpgid resumed>) = 0 [pid 6886] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6889] <... setpgid resumed>) = 0 [pid 6887] <... close resumed>) = 0 [pid 6888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6887] write(1, "executing program\n", 18 [pid 6889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6887] <... write resumed>) = 18 [pid 6889] <... openat resumed>) = 3 [pid 6888] <... openat resumed>) = 3 [pid 6889] write(3, "1000", 4 [pid 6887] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6888] write(3, "1000", 4 [pid 6886] <... bpf resumed>) = 5 [pid 6885] <... bpf resumed>) = 5 [pid 6887] <... bpf resumed>) = 3 [pid 6889] <... write resumed>) = 4 [pid 6888] <... write resumed>) = 4 [pid 6887] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6886] exit_group(0 [pid 6885] exit_group(0 [pid 6889] close(3 [pid 6888] close(3 [pid 6886] <... exit_group resumed>) = ? [pid 6885] <... exit_group resumed>) = ? [pid 6889] <... close resumed>) = 0 [pid 6888] <... close resumed>) = 0 [pid 6887] <... bpf resumed>) = 4 [pid 6887] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6889] write(1, "executing program\n", 18) = 18 [pid 6889] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6888] write(1, "executing program\n", 18 [pid 6889] <... bpf resumed>) = 3 [pid 6888] <... write resumed>) = 18 [pid 6889] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6888] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6889] <... bpf resumed>) = 4 [pid 6888] <... bpf resumed>) = 3 [pid 6888] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6889] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6888] <... bpf resumed>) = 4 [pid 6888] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6885] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6885, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6886] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6886, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6889] <... bpf resumed>) = 5 [pid 6888] <... bpf resumed>) = 5 [pid 6887] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6890 attached [pid 6889] exit_group(0 [pid 6888] exit_group(0 [pid 6887] exit_group(0 [pid 6888] <... exit_group resumed>) = ? [pid 6887] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6891 attached [pid 6890] set_robust_list(0x55556540f660, 24 [pid 6889] <... exit_group resumed>) = ? [pid 6887] +++ exited with 0 +++ [pid 6890] <... set_robust_list resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6887, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6891] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6890 [pid 6891] <... set_robust_list resumed>) = 0 [pid 6891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6891] setpgid(0, 0) = 0 [pid 6890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6890] <... prctl resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6891 [pid 6891] <... openat resumed>) = 3 [pid 6890] setpgid(0, 0) = 0 [pid 6891] write(3, "1000", 4 [pid 6890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6891] <... write resumed>) = 4 [pid 6891] close(3./strace-static-x86_64: Process 6892 attached ) = 0 [pid 6890] <... openat resumed>) = 3 [pid 6891] write(1, "executing program\n", 18 [pid 6890] write(3, "1000", 4) = 4 executing program executing program [pid 6890] close(3) = 0 [pid 6890] write(1, "executing program\n", 18 [pid 6891] <... write resumed>) = 18 [pid 6890] <... write resumed>) = 18 [pid 6891] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6890] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6892] set_robust_list(0x55556540f660, 24) = 0 [pid 6891] <... bpf resumed>) = 3 [pid 6890] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6892 [pid 6892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6891] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6890] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6892] <... prctl resumed>) = 0 [pid 6891] <... bpf resumed>) = 4 [pid 6890] <... bpf resumed>) = 4 [pid 6892] setpgid(0, 0 [pid 6890] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6892] <... setpgid resumed>) = 0 [pid 6891] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6889] +++ exited with 0 +++ [pid 6888] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6889, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6888, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6892] <... openat resumed>) = 3 [pid 6892] write(3, "1000", 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6892] <... write resumed>) = 4 [pid 6892] close(3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 6892] <... close resumed>) = 0 ./strace-static-x86_64: Process 6894 attached ./strace-static-x86_64: Process 6893 attached [pid 6891] <... bpf resumed>) = 5 [pid 6890] <... bpf resumed>) = 5 [pid 6892] write(1, "executing program\n", 18 [pid 6894] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6893 [pid 6894] <... set_robust_list resumed>) = 0 [pid 6893] set_robust_list(0x55556540f660, 24 [pid 6892] <... write resumed>) = 18 [pid 6894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6891] exit_group(0 [pid 6890] exit_group(0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6894 [pid 6893] <... set_robust_list resumed>) = 0 [pid 6892] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6894] <... prctl resumed>) = 0 [pid 6893] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6891] <... exit_group resumed>) = ? [pid 6890] <... exit_group resumed>) = ? [pid 6894] setpgid(0, 0 [pid 6893] <... prctl resumed>) = 0 [pid 6892] <... bpf resumed>) = 3 [pid 6894] <... setpgid resumed>) = 0 [pid 6893] setpgid(0, 0) = 0 [pid 6892] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6894] <... openat resumed>) = 3 [pid 6893] <... openat resumed>) = 3 [pid 6892] <... bpf resumed>) = 4 [pid 6894] write(3, "1000", 4 [pid 6893] write(3, "1000", 4 [pid 6894] <... write resumed>) = 4 [pid 6893] <... write resumed>) = 4 [pid 6894] close(3 [pid 6893] close(3 [pid 6894] <... close resumed>) = 0 [pid 6893] <... close resumed>) = 0 executing program [pid 6892] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6894] write(1, "executing program\n", 18) = 18 executing program [pid 6893] write(1, "executing program\n", 18 [pid 6894] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6893] <... write resumed>) = 18 [pid 6893] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6894] <... bpf resumed>) = 3 [pid 6893] <... bpf resumed>) = 3 [pid 6894] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6893] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6891] +++ exited with 0 +++ [pid 6890] +++ exited with 0 +++ [pid 6894] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6893] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6891, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6894] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6893] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6895 attached ./strace-static-x86_64: Process 6896 attached [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6896 [pid 6896] set_robust_list(0x55556540f660, 24 [pid 6895] set_robust_list(0x55556540f660, 24 [pid 6894] <... bpf resumed>) = 5 [pid 6893] <... bpf resumed>) = 5 [pid 6892] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6895 [pid 6896] <... set_robust_list resumed>) = 0 [pid 6895] <... set_robust_list resumed>) = 0 [pid 6894] exit_group(0 [pid 6893] exit_group(0 [pid 6892] exit_group(0 [pid 6895] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6894] <... exit_group resumed>) = ? [pid 6893] <... exit_group resumed>) = ? [pid 6896] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6895] <... prctl resumed>) = 0 [pid 6894] +++ exited with 0 +++ [pid 6893] +++ exited with 0 +++ [pid 6892] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6894, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6896] <... prctl resumed>) = 0 [pid 6895] setpgid(0, 0 [pid 6892] +++ exited with 0 +++ [pid 5849] <... restart_syscall resumed>) = 0 [pid 6896] setpgid(0, 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6893, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6895] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6892, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6896] <... setpgid resumed>) = 0 [pid 6895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6896] <... openat resumed>) = 3 [pid 6895] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6897 attached [pid 6896] write(3, "1000", 4 [pid 6895] write(3, "1000", 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6897 [pid 6897] set_robust_list(0x55556540f660, 24 [pid 6896] <... write resumed>) = 4 ./strace-static-x86_64: Process 6898 attached [pid 6897] <... set_robust_list resumed>) = 0 [pid 6896] close(3 [pid 6895] <... write resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6899 attached [pid 6898] set_robust_list(0x55556540f660, 24 [pid 6897] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6896] <... close resumed>) = 0 [pid 6895] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6898 [pid 6899] set_robust_list(0x55556540f660, 24 [pid 6897] <... prctl resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6899 [pid 6899] <... set_robust_list resumed>) = 0 [pid 6898] <... set_robust_list resumed>) = 0 executing program [pid 6897] setpgid(0, 0 [pid 6896] write(1, "executing program\n", 18 [pid 6895] <... close resumed>) = 0 [pid 6899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6898] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 6897] <... setpgid resumed>) = 0 [pid 6896] <... write resumed>) = 18 [pid 6895] write(1, "executing program\n", 18 [pid 6899] <... prctl resumed>) = 0 [pid 6898] <... prctl resumed>) = 0 [pid 6896] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6895] <... write resumed>) = 18 [pid 6899] setpgid(0, 0 [pid 6897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6899] <... setpgid resumed>) = 0 [pid 6899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6898] setpgid(0, 0 [pid 6897] <... openat resumed>) = 3 [pid 6896] <... bpf resumed>) = 3 [pid 6895] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6899] <... openat resumed>) = 3 [pid 6898] <... setpgid resumed>) = 0 [pid 6897] write(3, "1000", 4 [pid 6896] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6895] <... bpf resumed>) = 3 [pid 6899] write(3, "1000", 4 [pid 6898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6897] <... write resumed>) = 4 [pid 6896] <... bpf resumed>) = 4 [pid 6895] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6899] <... write resumed>) = 4 [pid 6897] close(3 [pid 6899] close(3 [pid 6897] <... close resumed>) = 0 executing program [pid 6899] <... close resumed>) = 0 [pid 6898] <... openat resumed>) = 3 [pid 6897] write(1, "executing program\n", 18 [pid 6896] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6895] <... bpf resumed>) = 4 [pid 6899] write(1, "executing program\n", 18 [pid 6898] write(3, "1000", 4 [pid 6897] <... write resumed>) = 18 [pid 6896] <... bpf resumed>) = 5 [pid 6898] <... write resumed>) = 4 [pid 6895] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6898] close(3) = 0 executing program executing program [pid 6898] write(1, "executing program\n", 18) = 18 [pid 6898] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6899] <... write resumed>) = 18 [pid 6898] <... bpf resumed>) = 3 [pid 6897] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6896] exit_group(0 [pid 6895] <... bpf resumed>) = 5 [pid 6899] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6898] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6897] <... bpf resumed>) = 3 [pid 6896] <... exit_group resumed>) = ? [pid 6895] exit_group(0 [pid 6899] <... bpf resumed>) = 3 [pid 6898] <... bpf resumed>) = 4 [pid 6895] <... exit_group resumed>) = ? [pid 6899] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6897] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6899] <... bpf resumed>) = 4 [pid 6898] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6897] <... bpf resumed>) = 4 [pid 6896] +++ exited with 0 +++ [pid 6897] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6896, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6899] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6895] +++ exited with 0 +++ [pid 5847] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6895, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6899] <... bpf resumed>) = 5 [pid 6898] <... bpf resumed>) = 5 [pid 6897] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6900 attached [pid 6897] exit_group(0 [pid 6900] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6901 attached ) = 0 [pid 6899] exit_group(0 [pid 6898] exit_group(0 [pid 6897] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6900 [pid 6899] <... exit_group resumed>) = ? [pid 6898] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6901 [pid 6901] set_robust_list(0x55556540f660, 24 [pid 6900] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6898] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6898, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6901] <... set_robust_list resumed>) = 0 [pid 6901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6900] <... prctl resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6901] <... prctl resumed>) = 0 [pid 6900] setpgid(0, 0./strace-static-x86_64: Process 6902 attached [pid 6901] setpgid(0, 0 [pid 6902] set_robust_list(0x55556540f660, 24 [pid 6900] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6902 [pid 6900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6902] <... set_robust_list resumed>) = 0 [pid 6901] <... setpgid resumed>) = 0 [pid 6900] <... openat resumed>) = 3 [pid 6902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6900] write(3, "1000", 4 [pid 6901] <... openat resumed>) = 3 [pid 6902] setpgid(0, 0 [pid 6900] <... write resumed>) = 4 [pid 6901] write(3, "1000", 4 [pid 6900] close(3 [pid 6902] <... setpgid resumed>) = 0 [pid 6901] <... write resumed>) = 4 [pid 6900] <... close resumed>) = 0 [pid 6902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6901] close(3 [pid 6900] write(1, "executing program\n", 18 [pid 6901] <... close resumed>) = 0 executing program executing program [pid 6901] write(1, "executing program\n", 18 [pid 6900] <... write resumed>) = 18 [pid 6901] <... write resumed>) = 18 [pid 6901] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6900] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6902] <... openat resumed>) = 3 [pid 6901] <... bpf resumed>) = 3 [pid 6902] write(3, "1000", 4 [pid 6901] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6900] <... bpf resumed>) = 3 [pid 6899] +++ exited with 0 +++ [pid 6897] +++ exited with 0 +++ [pid 6902] <... write resumed>) = 4 [pid 6901] <... bpf resumed>) = 4 [pid 6900] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6897, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6899, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6902] close(3) = 0 [pid 6902] write(1, "executing program\n", 18executing program ) = 18 [pid 6901] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6900] <... bpf resumed>) = 4 [pid 6902] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6904 attached [pid 6900] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6904 ./strace-static-x86_64: Process 6903 attached [pid 6904] set_robust_list(0x55556540f660, 24 [pid 6902] <... bpf resumed>) = 3 [pid 6904] <... set_robust_list resumed>) = 0 [pid 6903] set_robust_list(0x55556540f660, 24 [pid 6902] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6903 [pid 6904] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6903] <... set_robust_list resumed>) = 0 [pid 6903] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6902] <... bpf resumed>) = 4 [pid 6901] <... bpf resumed>) = 5 [pid 6900] <... bpf resumed>) = 5 [pid 6904] <... prctl resumed>) = 0 [pid 6903] <... prctl resumed>) = 0 [pid 6904] setpgid(0, 0) = 0 [pid 6903] setpgid(0, 0 [pid 6900] exit_group(0 [pid 6904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6903] <... setpgid resumed>) = 0 [pid 6902] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6901] exit_group(0 [pid 6900] <... exit_group resumed>) = ? [pid 6902] <... bpf resumed>) = 5 [pid 6903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6904] <... openat resumed>) = 3 [pid 6903] <... openat resumed>) = 3 [pid 6902] exit_group(0 [pid 6901] <... exit_group resumed>) = ? [pid 6900] +++ exited with 0 +++ [pid 6903] write(3, "1000", 4 [pid 6904] write(3, "1000", 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6900, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6904] <... write resumed>) = 4 [pid 6903] <... write resumed>) = 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6904] close(3 [pid 6903] close(3 [pid 6904] <... close resumed>) = 0 [pid 6903] <... close resumed>) = 0 executing program executing program [pid 6904] write(1, "executing program\n", 18 [pid 6903] write(1, "executing program\n", 18 [pid 6904] <... write resumed>) = 18 [pid 6903] <... write resumed>) = 18 [pid 6904] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6903] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6902] <... exit_group resumed>) = ? [pid 6904] <... bpf resumed>) = 3 [pid 6903] <... bpf resumed>) = 3 [pid 6904] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6903] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6904] <... bpf resumed>) = 4 [pid 6904] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6903] <... bpf resumed>) = 4 [pid 6902] +++ exited with 0 +++ [pid 6901] +++ exited with 0 +++ [pid 5842] <... restart_syscall resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6901, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6903] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6902, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6905 attached , child_tidptr=0x55556540f650) = 6905 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6905] set_robust_list(0x55556540f660, 24 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6906 attached [pid 6905] <... set_robust_list resumed>) = 0 [pid 6906] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6907 attached ) = 0 [pid 6905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6906 [pid 6907] set_robust_list(0x55556540f660, 24 [pid 6906] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6907] <... set_robust_list resumed>) = 0 [pid 6906] <... prctl resumed>) = 0 [pid 6907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6906] setpgid(0, 0 [pid 6907] <... prctl resumed>) = 0 [pid 6906] <... setpgid resumed>) = 0 [pid 6907] setpgid(0, 0 [pid 6906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6907] <... setpgid resumed>) = 0 [pid 6905] <... prctl resumed>) = 0 [pid 6904] <... bpf resumed>) = 5 [pid 6903] <... bpf resumed>) = 5 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6907 [pid 6907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6906] <... openat resumed>) = 3 [pid 6905] setpgid(0, 0) = 0 [pid 6907] <... openat resumed>) = 3 [pid 6906] write(3, "1000", 4 [pid 6905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6904] exit_group(0 [pid 6903] exit_group(0 [pid 6907] write(3, "1000", 4 [pid 6906] <... write resumed>) = 4 [pid 6904] <... exit_group resumed>) = ? [pid 6907] <... write resumed>) = 4 [pid 6906] close(3executing program executing program [pid 6905] <... openat resumed>) = 3 [pid 6903] <... exit_group resumed>) = ? [pid 6905] write(3, "1000", 4 [pid 6907] close(3 [pid 6906] <... close resumed>) = 0 [pid 6907] <... close resumed>) = 0 [pid 6906] write(1, "executing program\n", 18 [pid 6907] write(1, "executing program\n", 18 [pid 6906] <... write resumed>) = 18 [pid 6907] <... write resumed>) = 18 [pid 6906] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6907] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6905] <... write resumed>) = 4 [pid 6907] <... bpf resumed>) = 3 [pid 6906] <... bpf resumed>) = 3 [pid 6907] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6906] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6907] <... bpf resumed>) = 4 [pid 6906] <... bpf resumed>) = 4 [pid 6905] close(3 [pid 6907] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6905] <... close resumed>) = 0 [pid 6906] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6905] write(1, "executing program\n", 18) = 18 [pid 6905] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6905] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6905] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6904] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6904, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6903] +++ exited with 0 +++ [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6903, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... restart_syscall resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6908 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6908 ./strace-static-x86_64: Process 6909 attached [pid 6908] set_robust_list(0x55556540f660, 24 [pid 6907] <... bpf resumed>) = 5 [pid 6906] <... bpf resumed>) = 5 [pid 6905] <... bpf resumed>) = 5 [pid 6909] set_robust_list(0x55556540f660, 24 [pid 6908] <... set_robust_list resumed>) = 0 [pid 6907] exit_group(0 [pid 6906] exit_group(0 [pid 6905] exit_group(0 [pid 6909] <... set_robust_list resumed>) = 0 [pid 6908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6907] <... exit_group resumed>) = ? [pid 6906] <... exit_group resumed>) = ? [pid 6905] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6909 [pid 6909] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6908] <... prctl resumed>) = 0 [pid 6907] +++ exited with 0 +++ [pid 6909] <... prctl resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6907, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6908] setpgid(0, 0 [pid 6909] setpgid(0, 0) = 0 [pid 6909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6908] <... setpgid resumed>) = 0 [pid 6909] <... openat resumed>) = 3 [pid 6908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6909] write(3, "1000", 4) = 4 [pid 6909] close(3 [pid 6908] <... openat resumed>) = 3 [pid 6909] <... close resumed>) = 0 [pid 6908] write(3, "1000", 4 [pid 6909] write(1, "executing program\n", 18executing program ) = 18 [pid 6909] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6908] <... write resumed>) = 4 [pid 6909] <... bpf resumed>) = 3 [pid 6908] close(3 [pid 6909] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6908] <... close resumed>) = 0 executing program [pid 6908] write(1, "executing program\n", 18) = 18 [pid 6909] <... bpf resumed>) = 4 [pid 6908] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6909] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6908] <... bpf resumed>) = 3 [pid 6908] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6908] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6910 attached [pid 6910] set_robust_list(0x55556540f660, 24 [pid 6906] +++ exited with 0 +++ [pid 6905] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6910 [pid 6910] <... set_robust_list resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6906, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6910] setpgid(0, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6910] <... setpgid resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6911 attached ./strace-static-x86_64: Process 6912 attached [pid 6910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6911] set_robust_list(0x55556540f660, 24) = 0 [pid 6912] set_robust_list(0x55556540f660, 24 [pid 6910] <... openat resumed>) = 3 [pid 6912] <... set_robust_list resumed>) = 0 [pid 6911] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6912] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6911] <... prctl resumed>) = 0 [pid 6910] write(3, "1000", 4 [pid 6909] <... bpf resumed>) = 5 [pid 6908] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6912 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6911 [pid 6912] <... prctl resumed>) = 0 [pid 6911] setpgid(0, 0 [pid 6912] setpgid(0, 0 [pid 6911] <... setpgid resumed>) = 0 [pid 6910] <... write resumed>) = 4 [pid 6909] exit_group(0 [pid 6912] <... setpgid resumed>) = 0 [pid 6911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6910] close(3 [pid 6909] <... exit_group resumed>) = ? [pid 6908] exit_group(0 [pid 6912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6910] <... close resumed>) = 0 [pid 6908] <... exit_group resumed>) = ? [pid 6912] <... openat resumed>) = 3 [pid 6911] <... openat resumed>) = 3 executing program [pid 6910] write(1, "executing program\n", 18 [pid 6911] write(3, "1000", 4 [pid 6910] <... write resumed>) = 18 [pid 6911] <... write resumed>) = 4 [pid 6912] write(3, "1000", 4) = 4 [pid 6911] close(3 [pid 6910] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6912] close(3 [pid 6911] <... close resumed>) = 0 [pid 6912] <... close resumed>) = 0 [pid 6911] write(1, "executing program\n", 18 [pid 6910] <... bpf resumed>) = 3 [pid 6912] write(1, "executing program\n", 18executing program executing program [pid 6911] <... write resumed>) = 18 [pid 6912] <... write resumed>) = 18 [pid 6910] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6912] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6911] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6912] <... bpf resumed>) = 3 [pid 6910] <... bpf resumed>) = 4 [pid 6912] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6911] <... bpf resumed>) = 3 [pid 6912] <... bpf resumed>) = 4 [pid 6910] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6911] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6912] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6911] <... bpf resumed>) = 4 [pid 6909] +++ exited with 0 +++ [pid 6911] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6908] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6909, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6908, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6913 attached [pid 6913] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6914 attached ) = 0 [pid 6914] set_robust_list(0x55556540f660, 24 [pid 6913] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6913 [pid 6914] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6914 [pid 6914] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6913] <... prctl resumed>) = 0 [pid 6914] <... prctl resumed>) = 0 [pid 6913] setpgid(0, 0 [pid 6914] setpgid(0, 0 [pid 6913] <... setpgid resumed>) = 0 [pid 6914] <... setpgid resumed>) = 0 [pid 6914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6914] <... openat resumed>) = 3 [pid 6914] write(3, "1000", 4) = 4 [pid 6914] close(3 [pid 6913] <... openat resumed>) = 3 [pid 6914] <... close resumed>) = 0 [pid 6914] write(1, "executing program\n", 18 [pid 6913] write(3, "1000", 4 [pid 6912] <... bpf resumed>) = 5 executing program [pid 6911] <... bpf resumed>) = 5 [pid 6910] <... bpf resumed>) = 5 [pid 6914] <... write resumed>) = 18 [pid 6911] exit_group(0 [pid 6910] exit_group(0 [pid 6914] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6913] <... write resumed>) = 4 [pid 6912] exit_group(0 [pid 6914] <... bpf resumed>) = 3 [pid 6913] close(3 [pid 6912] <... exit_group resumed>) = ? [pid 6911] <... exit_group resumed>) = ? [pid 6910] <... exit_group resumed>) = ? [pid 6914] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6913] <... close resumed>) = 0 [pid 6912] +++ exited with 0 +++ [pid 6911] +++ exited with 0 +++ [pid 6910] +++ exited with 0 +++ executing program [pid 6914] <... bpf resumed>) = 4 [pid 6913] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6912, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6913] <... write resumed>) = 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6910, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6913] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6914] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6913] <... bpf resumed>) = 3 [pid 6913] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6913] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6914] <... bpf resumed>) = 5 [pid 6913] <... bpf resumed>) = 5 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6915 attached ./strace-static-x86_64: Process 6916 attached [pid 6914] exit_group(0 [pid 6913] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6914] <... exit_group resumed>) = ? [pid 6913] <... exit_group resumed>) = ? [pid 6916] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6915 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6916 [pid 6916] <... set_robust_list resumed>) = 0 [pid 6916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6917 attached [pid 6916] setpgid(0, 0 [pid 6915] set_robust_list(0x55556540f660, 24 [pid 6917] set_robust_list(0x55556540f660, 24 [pid 6915] <... set_robust_list resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6917 [pid 6917] <... set_robust_list resumed>) = 0 [pid 6916] <... setpgid resumed>) = 0 [pid 6915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6917] <... prctl resumed>) = 0 [pid 6915] <... prctl resumed>) = 0 [pid 6916] <... openat resumed>) = 3 [pid 6917] setpgid(0, 0 [pid 6915] setpgid(0, 0 [pid 6917] <... setpgid resumed>) = 0 [pid 6916] write(3, "1000", 4 [pid 6915] <... setpgid resumed>) = 0 [pid 6917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6916] <... write resumed>) = 4 [pid 6915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6917] <... openat resumed>) = 3 [pid 6916] close(3 [pid 6917] write(3, "1000", 4 [pid 6916] <... close resumed>) = 0 executing program [pid 6915] <... openat resumed>) = 3 [pid 6917] <... write resumed>) = 4 [pid 6916] write(1, "executing program\n", 18executing program [pid 6917] close(3 [pid 6916] <... write resumed>) = 18 [pid 6915] write(3, "1000", 4 [pid 6917] <... close resumed>) = 0 [pid 6915] <... write resumed>) = 4 [pid 6917] write(1, "executing program\n", 18 [pid 6915] close(3 [pid 6917] <... write resumed>) = 18 [pid 6915] <... close resumed>) = 0 [pid 6917] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6916] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6915] write(1, "executing program\n", 18 [pid 6917] <... bpf resumed>) = 3 [pid 6916] <... bpf resumed>) = 3 executing program [pid 6916] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6917] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6916] <... bpf resumed>) = 4 [pid 6915] <... write resumed>) = 18 [pid 6916] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6917] <... bpf resumed>) = 4 [pid 6915] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6914] +++ exited with 0 +++ [pid 6913] +++ exited with 0 +++ [pid 6917] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6915] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6913, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6914, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6915] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6918 attached [pid 6915] <... bpf resumed>) = 4 [pid 6918] set_robust_list(0x55556540f660, 24 [pid 6915] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6918] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6918 ./strace-static-x86_64: Process 6919 attached [pid 6918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6917] <... bpf resumed>) = 5 [pid 6916] <... bpf resumed>) = 5 [pid 6915] <... bpf resumed>) = 5 [pid 6919] set_robust_list(0x55556540f660, 24 [pid 6918] <... prctl resumed>) = 0 [pid 6917] exit_group(0 [pid 6916] exit_group(0 [pid 6915] exit_group(0 [pid 6919] <... set_robust_list resumed>) = 0 [pid 6918] setpgid(0, 0 [pid 6917] <... exit_group resumed>) = ? [pid 6916] <... exit_group resumed>) = ? [pid 6915] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6919 [pid 6919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6918] <... setpgid resumed>) = 0 [pid 6916] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6916, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6919] <... prctl resumed>) = 0 [pid 6918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6919] setpgid(0, 0 [pid 6918] <... openat resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6919] <... setpgid resumed>) = 0 [pid 6919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6918] write(3, "1000", 4 [pid 6919] <... openat resumed>) = 3 [pid 6918] <... write resumed>) = 4 [pid 6918] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6919] write(3, "1000", 4 [pid 6918] <... close resumed>) = 0 ./strace-static-x86_64: Process 6920 attached [pid 6919] <... write resumed>) = 4 executing program [pid 6918] write(1, "executing program\n", 18) = 18 [pid 6919] close(3) = 0 [pid 6918] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6920] set_robust_list(0x55556540f660, 24 executing program [pid 6919] write(1, "executing program\n", 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6920 [pid 6920] <... set_robust_list resumed>) = 0 [pid 6919] <... write resumed>) = 18 [pid 6918] <... bpf resumed>) = 3 [pid 6917] +++ exited with 0 +++ [pid 6915] +++ exited with 0 +++ [pid 6920] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6919] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6918] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6920] <... prctl resumed>) = 0 [pid 6919] <... bpf resumed>) = 3 [pid 6918] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6917, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6920] setpgid(0, 0 [pid 6919] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6915, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6920] <... setpgid resumed>) = 0 [pid 6919] <... bpf resumed>) = 4 [pid 6918] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6922 attached ./strace-static-x86_64: Process 6921 attached ) = 3 [pid 6920] write(3, "1000", 4 [pid 6919] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6920] <... write resumed>) = 4 [pid 6920] close(3) = 0 [pid 6920] write(1, "executing program\n", 18executing program ) = 18 [pid 6920] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6921 [pid 6920] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6922] set_robust_list(0x55556540f660, 24 [pid 6921] set_robust_list(0x55556540f660, 24 [pid 6920] <... bpf resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6922 [pid 6922] <... set_robust_list resumed>) = 0 [pid 6921] <... set_robust_list resumed>) = 0 [pid 6920] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6922] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6919] <... bpf resumed>) = 5 [pid 6918] <... bpf resumed>) = 5 [pid 6921] <... prctl resumed>) = 0 [pid 6921] setpgid(0, 0 [pid 6920] <... bpf resumed>) = 5 [pid 6918] exit_group(0 [pid 6922] <... prctl resumed>) = 0 [pid 6921] <... setpgid resumed>) = 0 [pid 6920] exit_group(0 [pid 6919] exit_group(0 [pid 6920] <... exit_group resumed>) = ? [pid 6918] <... exit_group resumed>) = ? [pid 6922] setpgid(0, 0 [pid 6921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6920] +++ exited with 0 +++ [pid 6919] <... exit_group resumed>) = ? [pid 6922] <... setpgid resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6920, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6921] <... openat resumed>) = 3 [pid 6922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... restart_syscall resumed>) = 0 [pid 6922] <... openat resumed>) = 3 [pid 6921] write(3, "1000", 4) = 4 [pid 6922] write(3, "1000", 4 [pid 6921] close(3 [pid 6922] <... write resumed>) = 4 [pid 6921] <... close resumed>) = 0 executing program [pid 6922] close(3 [pid 6921] write(1, "executing program\n", 18executing program [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6922] <... close resumed>) = 0 [pid 6921] <... write resumed>) = 18 [pid 6922] write(1, "executing program\n", 18 [pid 6921] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6922] <... write resumed>) = 18 [pid 6922] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6923 attached [pid 6921] <... bpf resumed>) = 3 [pid 6919] +++ exited with 0 +++ [pid 6918] +++ exited with 0 +++ [pid 6923] set_robust_list(0x55556540f660, 24 [pid 6922] <... bpf resumed>) = 3 [pid 6921] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6918, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6919, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6923 [pid 6923] <... set_robust_list resumed>) = 0 [pid 6922] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6921] <... bpf resumed>) = 4 [pid 6923] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6922] <... bpf resumed>) = 4 [pid 6923] <... prctl resumed>) = 0 [pid 6922] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6921] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6923] setpgid(0, 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6923] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6924 ./strace-static-x86_64: Process 6925 attached ./strace-static-x86_64: Process 6924 attached [pid 6923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6922] <... bpf resumed>) = 5 [pid 6921] <... bpf resumed>) = 5 [pid 6925] set_robust_list(0x55556540f660, 24 [pid 6923] <... openat resumed>) = 3 [pid 6925] <... set_robust_list resumed>) = 0 [pid 6925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6924] set_robust_list(0x55556540f660, 24 [pid 6923] write(3, "1000", 4 [pid 6922] exit_group(0 [pid 6921] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6925 [pid 6925] <... prctl resumed>) = 0 [pid 6924] <... set_robust_list resumed>) = 0 [pid 6923] <... write resumed>) = 4 [pid 6922] <... exit_group resumed>) = ? [pid 6921] <... exit_group resumed>) = ? [pid 6925] setpgid(0, 0 [pid 6924] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6923] close(3 [pid 6925] <... setpgid resumed>) = 0 [pid 6925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6924] <... prctl resumed>) = 0 [pid 6923] <... close resumed>) = 0 [pid 6922] +++ exited with 0 +++ [pid 6921] +++ exited with 0 +++ [pid 6925] write(3, "1000", 4 [pid 6924] setpgid(0, 0 [pid 6925] <... write resumed>) = 4 [pid 6924] <... setpgid resumed>) = 0 executing program [pid 6923] write(1, "executing program\n", 18 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6922, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6921, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6925] close(3 [pid 6923] <... write resumed>) = 18 [pid 6925] <... close resumed>) = 0 [pid 6924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 6925] write(1, "executing program\n", 18 [pid 6924] <... openat resumed>) = 3 [pid 6923] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6925] <... write resumed>) = 18 [pid 6925] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6924] write(3, "1000", 4./strace-static-x86_64: Process 6926 attached [pid 6925] <... bpf resumed>) = 3 [pid 6924] <... write resumed>) = 4 [pid 6924] close(3) = 0 executing program [pid 6924] write(1, "executing program\n", 18 [pid 6925] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6924] <... write resumed>) = 18 [pid 6926] set_robust_list(0x55556540f660, 24 [pid 6925] <... bpf resumed>) = 4 [pid 6924] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6923] <... bpf resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6926] <... set_robust_list resumed>) = 0 [pid 6923] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6926 [pid 6925] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6924] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6927 attached [pid 6926] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6925] <... bpf resumed>) = 5 [pid 6924] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6923] <... bpf resumed>) = 4 [pid 6926] <... prctl resumed>) = 0 [pid 6927] set_robust_list(0x55556540f660, 24 [pid 6926] setpgid(0, 0 [pid 6925] exit_group(0 [pid 6924] <... bpf resumed>) = 4 [pid 6923] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6927 [pid 6927] <... set_robust_list resumed>) = 0 [pid 6926] <... setpgid resumed>) = 0 [pid 6925] <... exit_group resumed>) = ? [pid 6927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6927] setpgid(0, 0 [pid 6926] <... openat resumed>) = 3 [pid 6923] <... bpf resumed>) = 5 [pid 6927] <... setpgid resumed>) = 0 [pid 6927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6926] write(3, "1000", 4 [pid 6924] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6923] exit_group(0 [pid 6926] <... write resumed>) = 4 [pid 6923] <... exit_group resumed>) = ? [pid 6927] <... openat resumed>) = 3 [pid 6927] write(3, "1000", 4) = 4 [pid 6926] close(3 [pid 6927] close(3 [pid 6926] <... close resumed>) = 0 [pid 6927] <... close resumed>) = 0 executing program executing program [pid 6926] write(1, "executing program\n", 18 [pid 6927] write(1, "executing program\n", 18 [pid 6926] <... write resumed>) = 18 [pid 6927] <... write resumed>) = 18 [pid 6926] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6927] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6926] <... bpf resumed>) = 3 [pid 6927] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6926] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6927] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6926] <... bpf resumed>) = 4 [pid 6925] +++ exited with 0 +++ [pid 6924] <... bpf resumed>) = 5 [pid 6926] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6924] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6925, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6924] <... exit_group resumed>) = ? [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556540f650) = 6928 ./strace-static-x86_64: Process 6928 attached [pid 6927] <... bpf resumed>) = 5 [pid 6926] <... bpf resumed>) = 5 [pid 6924] +++ exited with 0 +++ [pid 6923] +++ exited with 0 +++ [pid 6928] set_robust_list(0x55556540f660, 24 [pid 6927] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6923, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6928] <... set_robust_list resumed>) = 0 [pid 6927] <... exit_group resumed>) = ? [pid 6926] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6924, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6926] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6928] <... prctl resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6929 attached ./strace-static-x86_64: Process 6930 attached [pid 6929] set_robust_list(0x55556540f660, 24 [pid 6928] setpgid(0, 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6929 [pid 6928] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6930 [pid 6930] set_robust_list(0x55556540f660, 24 [pid 6929] <... set_robust_list resumed>) = 0 [pid 6930] <... set_robust_list resumed>) = 0 [pid 6929] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6930] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6929] <... prctl resumed>) = 0 [pid 6929] setpgid(0, 0 [pid 6930] <... prctl resumed>) = 0 [pid 6928] <... openat resumed>) = 3 [pid 6927] +++ exited with 0 +++ [pid 6926] +++ exited with 0 +++ [pid 6930] setpgid(0, 0 [pid 6929] <... setpgid resumed>) = 0 [pid 6928] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6926, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6930] <... setpgid resumed>) = 0 [pid 6929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6928] <... write resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6927, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6929] <... openat resumed>) = 3 [pid 6928] close(3) = 0 [pid 6930] <... openat resumed>) = 3 [pid 6929] write(3, "1000", 4 [pid 6928] write(1, "executing program\n", 18executing program ) = 18 [pid 6930] write(3, "1000", 4 [pid 6929] <... write resumed>) = 4 [pid 6928] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6930] <... write resumed>) = 4 [pid 6929] close(3executing program executing program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6929] <... close resumed>) = 0 [pid 6930] close(3 [pid 6929] write(1, "executing program\n", 18 [pid 6928] <... bpf resumed>) = 3 [pid 6930] <... close resumed>) = 0 [pid 6929] <... write resumed>) = 18 [pid 6930] write(1, "executing program\n", 18./strace-static-x86_64: Process 6931 attached ) = 18 [pid 6929] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6928] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6932 attached [pid 6930] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6929] <... bpf resumed>) = 3 [pid 6931] set_robust_list(0x55556540f660, 24 [pid 6928] <... bpf resumed>) = 4 [pid 6932] set_robust_list(0x55556540f660, 24 [pid 6931] <... set_robust_list resumed>) = 0 [pid 6930] <... bpf resumed>) = 3 [pid 6929] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6931 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6932 [pid 6932] <... set_robust_list resumed>) = 0 [pid 6931] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6930] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6929] <... bpf resumed>) = 4 [pid 6928] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6932] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6931] <... prctl resumed>) = 0 [pid 6930] <... bpf resumed>) = 4 [pid 6931] setpgid(0, 0 [pid 6932] <... prctl resumed>) = 0 [pid 6931] <... setpgid resumed>) = 0 [pid 6932] setpgid(0, 0) = 0 [pid 6930] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6929] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6932] <... openat resumed>) = 3 [pid 6932] write(3, "1000", 4 [pid 6931] <... openat resumed>) = 3 [pid 6930] <... bpf resumed>) = 5 [pid 6929] <... bpf resumed>) = 5 [pid 6928] <... bpf resumed>) = 5 [pid 6932] <... write resumed>) = 4 [pid 6929] exit_group(0 [pid 6932] close(3 [pid 6931] write(3, "1000", 4 [pid 6929] <... exit_group resumed>) = ? [pid 6928] exit_group(0 [pid 6932] <... close resumed>) = 0 [pid 6931] <... write resumed>) = 4 [pid 6930] exit_group(0 [pid 6929] +++ exited with 0 +++ executing program [pid 6932] write(1, "executing program\n", 18 [pid 6931] close(3 [pid 6930] <... exit_group resumed>) = ? [pid 6928] <... exit_group resumed>) = ? [pid 6932] <... write resumed>) = 18 [pid 6931] <... close resumed>) = 0 [pid 6930] +++ exited with 0 +++ [pid 6928] +++ exited with 0 +++ [pid 6932] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 6931] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6929, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6928, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6930, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6932] <... bpf resumed>) = 3 [pid 6931] <... write resumed>) = 18 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6931] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6932] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6933 attached [pid 6932] <... bpf resumed>) = 4 [pid 6931] <... bpf resumed>) = 3 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6933] set_robust_list(0x55556540f660, 24 [pid 6931] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6933] <... set_robust_list resumed>) = 0 [pid 6933] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6932] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6931] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6933 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6933] <... prctl resumed>) = 0 [pid 6933] setpgid(0, 0) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6934 attached [pid 6931] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6934] set_robust_list(0x55556540f660, 24 [pid 6933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6935 attached [pid 6934] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6934 [pid 6935] set_robust_list(0x55556540f660, 24 [pid 6934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6933] <... openat resumed>) = 3 [pid 6935] <... set_robust_list resumed>) = 0 [pid 6934] <... prctl resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6935 [pid 6935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6934] setpgid(0, 0 [pid 6933] write(3, "1000", 4) = 4 [pid 6933] close(3) = 0 [pid 6933] write(1, "executing program\n", 18executing program ) = 18 [pid 6933] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6935] <... prctl resumed>) = 0 [pid 6934] <... setpgid resumed>) = 0 [pid 6935] setpgid(0, 0 [pid 6933] <... bpf resumed>) = 3 [pid 6935] <... setpgid resumed>) = 0 [pid 6934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6932] <... bpf resumed>) = 5 [pid 6931] <... bpf resumed>) = 5 [pid 6935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6933] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6932] exit_group(0 [pid 6931] exit_group(0 [pid 6934] <... openat resumed>) = 3 [pid 6935] <... openat resumed>) = 3 [pid 6934] write(3, "1000", 4 [pid 6933] <... bpf resumed>) = 4 [pid 6932] <... exit_group resumed>) = ? [pid 6931] <... exit_group resumed>) = ? [pid 6935] write(3, "1000", 4 [pid 6934] <... write resumed>) = 4 [pid 6933] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program executing program [pid 6935] <... write resumed>) = 4 [pid 6934] close(3 [pid 6935] close(3 [pid 6934] <... close resumed>) = 0 [pid 6935] <... close resumed>) = 0 [pid 6934] write(1, "executing program\n", 18 [pid 6935] write(1, "executing program\n", 18 [pid 6934] <... write resumed>) = 18 [pid 6935] <... write resumed>) = 18 [pid 6935] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6934] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6935] <... bpf resumed>) = 3 [pid 6932] +++ exited with 0 +++ [pid 6931] +++ exited with 0 +++ [pid 6935] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6934] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6931, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 6935] <... bpf resumed>) = 4 [pid 6934] <... bpf resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6932, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6935] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6936 attached [pid 6934] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6936 ./strace-static-x86_64: Process 6937 attached [pid 6936] set_robust_list(0x55556540f660, 24 [pid 6937] set_robust_list(0x55556540f660, 24 [pid 6936] <... set_robust_list resumed>) = 0 [pid 6937] <... set_robust_list resumed>) = 0 [pid 6936] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6937 [pid 6937] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6936] <... prctl resumed>) = 0 [pid 6936] setpgid(0, 0 [pid 6937] <... prctl resumed>) = 0 [pid 6936] <... setpgid resumed>) = 0 [pid 6937] setpgid(0, 0 [pid 6936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6937] <... setpgid resumed>) = 0 [pid 6935] <... bpf resumed>) = 5 [pid 6934] <... bpf resumed>) = 5 [pid 6933] <... bpf resumed>) = 5 [pid 6937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6936] <... openat resumed>) = 3 [pid 6935] exit_group(0 [pid 6934] exit_group(0 [pid 6937] <... openat resumed>) = 3 [pid 6936] write(3, "1000", 4 [pid 6935] <... exit_group resumed>) = ? [pid 6934] <... exit_group resumed>) = ? [pid 6933] exit_group(0 [pid 6936] <... write resumed>) = 4 [pid 6935] +++ exited with 0 +++ [pid 6937] write(3, "1000", 4 [pid 6936] close(3 [pid 6937] <... write resumed>) = 4 [pid 6936] <... close resumed>) = 0 [pid 6934] +++ exited with 0 +++ [pid 6933] <... exit_group resumed>) = ? [pid 6937] close(3executing program [pid 6936] write(1, "executing program\n", 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6937] <... close resumed>) = 0 [pid 6936] <... write resumed>) = 18 executing program [pid 6937] write(1, "executing program\n", 18 [pid 6936] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6937] <... write resumed>) = 18 [pid 6936] <... bpf resumed>) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6934, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6937] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6936] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6937] <... bpf resumed>) = 3 [pid 6936] <... bpf resumed>) = 4 [pid 6937] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6933] +++ exited with 0 +++ [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6937] <... bpf resumed>) = 4 [pid 6936] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6933, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6937] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6938 attached ./strace-static-x86_64: Process 6939 attached [pid 6938] set_robust_list(0x55556540f660, 24 [pid 6936] <... bpf resumed>) = 5 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6939] set_robust_list(0x55556540f660, 24) = 0 ./strace-static-x86_64: Process 6940 attached [pid 6939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6938] <... set_robust_list resumed>) = 0 [pid 6937] <... bpf resumed>) = 5 [pid 6936] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6938 [pid 6939] <... prctl resumed>) = 0 [pid 6938] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6936] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6939 [pid 6940] set_robust_list(0x55556540f660, 24 [pid 6938] <... prctl resumed>) = 0 [pid 6939] setpgid(0, 0 [pid 6937] exit_group(0 [pid 6940] <... set_robust_list resumed>) = 0 [pid 6939] <... setpgid resumed>) = 0 [pid 6938] setpgid(0, 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6940 [pid 6940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6938] <... setpgid resumed>) = 0 [pid 6937] <... exit_group resumed>) = ? [pid 6940] <... prctl resumed>) = 0 [pid 6939] <... openat resumed>) = 3 [pid 6938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6939] write(3, "1000", 4 [pid 6940] setpgid(0, 0 [pid 6938] <... openat resumed>) = 3 [pid 6937] +++ exited with 0 +++ [pid 6936] +++ exited with 0 +++ [pid 6940] <... setpgid resumed>) = 0 [pid 6938] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6936, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6938] <... write resumed>) = 4 [pid 6938] close(3 [pid 6939] <... write resumed>) = 4 [pid 6938] <... close resumed>) = 0 [pid 6939] close(3 executing program [pid 6940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6939] <... close resumed>) = 0 [pid 6938] write(1, "executing program\n", 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6937, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6939] write(1, "executing program\n", 18executing program [pid 6938] <... write resumed>) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6939] <... write resumed>) = 18 [pid 6939] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6938] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6941 attached [pid 6939] <... bpf resumed>) = 3 [pid 6939] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6941] set_robust_list(0x55556540f660, 24 [pid 6940] <... openat resumed>) = 3 [pid 6938] <... bpf resumed>) = 3 [pid 6941] <... set_robust_list resumed>) = 0 [pid 6940] write(3, "1000", 4 [pid 6939] <... bpf resumed>) = 4 [pid 6938] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6941 [pid 6941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6940] <... write resumed>) = 4 [pid 6941] <... prctl resumed>) = 0 [pid 6940] close(3 [pid 6939] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6940] <... close resumed>) = 0 executing program [pid 6941] setpgid(0, 0 [pid 6940] write(1, "executing program\n", 18 [pid 6939] <... bpf resumed>) = 5 [pid 6938] <... bpf resumed>) = 4 [pid 6940] <... write resumed>) = 18 [pid 6940] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6941] <... setpgid resumed>) = 0 [pid 6938] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6940] <... bpf resumed>) = 3 [pid 6939] exit_group(0 [pid 6940] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6939] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6942 attached [pid 6941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6940] <... bpf resumed>) = 4 [pid 6938] <... bpf resumed>) = 5 [pid 6942] set_robust_list(0x55556540f660, 24) = 0 [pid 6942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6941] <... openat resumed>) = 3 [pid 6940] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6938] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6942 [pid 6942] setpgid(0, 0 [pid 6938] <... exit_group resumed>) = ? executing program [pid 6942] <... setpgid resumed>) = 0 [pid 6941] write(3, "1000", 4 [pid 6942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6941] <... write resumed>) = 4 [pid 6941] close(3 [pid 6942] <... openat resumed>) = 3 [pid 6941] <... close resumed>) = 0 [pid 6941] write(1, "executing program\n", 18) = 18 [pid 6942] write(3, "1000", 4 [pid 6941] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6940] <... bpf resumed>) = 5 [pid 6939] +++ exited with 0 +++ [pid 6942] <... write resumed>) = 4 [pid 6941] <... bpf resumed>) = 3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6939, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6942] close(3) = 0 [pid 6941] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6940] exit_group(0 [pid 6942] write(1, "executing program\n", 18executing program ) = 18 [pid 6941] <... bpf resumed>) = 4 [pid 6940] <... exit_group resumed>) = ? [pid 6942] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6942] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 6943 attached [pid 6942] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6943] set_robust_list(0x55556540f660, 24 [pid 6942] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6943 [pid 6941] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6943] <... set_robust_list resumed>) = 0 [pid 6942] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6943] setpgid(0, 0 [pid 6941] <... bpf resumed>) = 5 [pid 6938] +++ exited with 0 +++ [pid 6943] <... setpgid resumed>) = 0 [pid 6941] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6938, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6941] <... exit_group resumed>) = ? [pid 6943] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6943] write(3, "1000", 4) = 4 [pid 6943] close(3) = 0 executing program [pid 6943] write(1, "executing program\n", 18) = 18 [pid 6943] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6943] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6944 attached [pid 6942] <... bpf resumed>) = 5 [pid 6940] +++ exited with 0 +++ [pid 6944] set_robust_list(0x55556540f660, 24 [pid 6943] <... bpf resumed>) = 4 [pid 6942] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6944 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6940, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6944] <... set_robust_list resumed>) = 0 [pid 6944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6945 attached [pid 6944] <... prctl resumed>) = 0 [pid 6942] <... exit_group resumed>) = ? [pid 6945] set_robust_list(0x55556540f660, 24 [pid 6944] setpgid(0, 0 [pid 6943] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6945] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6945 [pid 6944] <... setpgid resumed>) = 0 [pid 6945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6945] <... prctl resumed>) = 0 [pid 6944] <... openat resumed>) = 3 [pid 6945] setpgid(0, 0 [pid 6944] write(3, "1000", 4 [pid 6945] <... setpgid resumed>) = 0 [pid 6944] <... write resumed>) = 4 [pid 6945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6944] close(3 [pid 6945] <... openat resumed>) = 3 [pid 6944] <... close resumed>) = 0 [pid 6945] write(3, "1000", 4 [pid 6944] write(1, "executing program\n", 18executing program [pid 6945] <... write resumed>) = 4 [pid 6944] <... write resumed>) = 18 [pid 6945] close(3 [pid 6944] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6945] <... close resumed>) = 0 [pid 6944] <... bpf resumed>) = 3 [pid 6945] write(1, "executing program\n", 18executing program [pid 6944] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6941] +++ exited with 0 +++ [pid 6945] <... write resumed>) = 18 [pid 6942] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6945] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6944] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6942, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6945] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6944] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6945] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6946 attached ./strace-static-x86_64: Process 6947 attached [pid 6947] set_robust_list(0x55556540f660, 24) = 0 [pid 6946] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6946 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6947 [pid 6947] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6946] <... set_robust_list resumed>) = 0 [pid 6947] <... prctl resumed>) = 0 [pid 6946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6947] setpgid(0, 0 [pid 6946] <... prctl resumed>) = 0 [pid 6947] <... setpgid resumed>) = 0 [pid 6947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6946] setpgid(0, 0) = 0 [pid 6947] <... openat resumed>) = 3 [pid 6947] write(3, "1000", 4 [pid 6946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6945] <... bpf resumed>) = 5 [pid 6944] <... bpf resumed>) = 5 [pid 6943] <... bpf resumed>) = 5 [pid 6947] <... write resumed>) = 4 [pid 6946] <... openat resumed>) = 3 [pid 6944] exit_group(0 [pid 6945] exit_group(0 [pid 6943] exit_group(0 [pid 6947] close(3) = 0 [pid 6946] write(3, "1000", 4 [pid 6945] <... exit_group resumed>) = ? [pid 6944] <... exit_group resumed>) = ? [pid 6943] <... exit_group resumed>) = ? [pid 6947] write(1, "executing program\n", 18 [pid 6946] <... write resumed>) = 4 [pid 6945] +++ exited with 0 +++ [pid 6944] +++ exited with 0 +++ [pid 6947] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6945, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6947] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6944, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6947] <... bpf resumed>) = 3 [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6947] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6943] +++ exited with 0 +++ [pid 6946] close(3executing program [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 6947] <... bpf resumed>) = 4 [pid 6946] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6943, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6946] write(1, "executing program\n", 18 [pid 6947] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6946] <... write resumed>) = 18 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6946] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6948 attached ./strace-static-x86_64: Process 6949 attached [pid 6946] <... bpf resumed>) = 3 [pid 6948] set_robust_list(0x55556540f660, 24 [pid 6949] set_robust_list(0x55556540f660, 24 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6950 attached [pid 6949] <... set_robust_list resumed>) = 0 [pid 6948] <... set_robust_list resumed>) = 0 [pid 6947] <... bpf resumed>) = 5 [pid 6946] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6948 [pid 6948] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6950] set_robust_list(0x55556540f660, 24 [pid 6949] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6947] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6949 [pid 6950] <... set_robust_list resumed>) = 0 [pid 6949] <... prctl resumed>) = 0 [pid 6947] <... exit_group resumed>) = ? [pid 6946] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6950 [pid 6950] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6949] setpgid(0, 0 [pid 6948] <... prctl resumed>) = 0 [pid 6947] +++ exited with 0 +++ [pid 6946] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6950] <... prctl resumed>) = 0 [pid 6949] <... setpgid resumed>) = 0 [pid 6948] setpgid(0, 0 [pid 6950] setpgid(0, 0 [pid 6949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6948] <... setpgid resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6947, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6950] <... setpgid resumed>) = 0 [pid 6950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6949] <... openat resumed>) = 3 [pid 6948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6950] <... openat resumed>) = 3 [pid 6949] write(3, "1000", 4 [pid 6948] <... openat resumed>) = 3 [pid 6949] <... write resumed>) = 4 [pid 6950] write(3, "1000", 4 [pid 6949] close(3 [pid 6948] write(3, "1000", 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6950] <... write resumed>) = 4 [pid 6949] <... close resumed>) = 0 [pid 6948] <... write resumed>) = 4 [pid 6950] close(3 executing program [pid 6949] write(1, "executing program\n", 18 [pid 6948] close(3 [pid 6950] <... close resumed>) = 0 [pid 6949] <... write resumed>) = 18 [pid 6948] <... close resumed>) = 0 [pid 6946] <... bpf resumed>) = 5 executing program [pid 6950] write(1, "executing program\n", 18) = 18 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6950] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6949] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6948] write(1, "executing program\n", 18executing program [pid 6946] exit_group(0./strace-static-x86_64: Process 6951 attached [pid 6950] <... bpf resumed>) = 3 [pid 6949] <... bpf resumed>) = 3 [pid 6948] <... write resumed>) = 18 [pid 6946] <... exit_group resumed>) = ? [pid 6951] set_robust_list(0x55556540f660, 24 [pid 6949] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6948] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6951] <... set_robust_list resumed>) = 0 [pid 6950] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6949] <... bpf resumed>) = 4 [pid 6946] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6951 [pid 6948] <... bpf resumed>) = 3 [pid 6951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6950] <... bpf resumed>) = 4 [pid 6948] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6946, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6951] <... prctl resumed>) = 0 [pid 6949] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6951] setpgid(0, 0) = 0 [pid 6948] <... bpf resumed>) = 4 [pid 6951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6948] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6952 attached [pid 6951] <... openat resumed>) = 3 [pid 6950] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6949] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6952 [pid 6948] <... bpf resumed>) = 5 [pid 6952] set_robust_list(0x55556540f660, 24 [pid 6951] write(3, "1000", 4 [pid 6950] <... bpf resumed>) = 5 [pid 6949] exit_group(0 [pid 6952] <... set_robust_list resumed>) = 0 [pid 6951] <... write resumed>) = 4 [pid 6950] exit_group(0 [pid 6949] <... exit_group resumed>) = ? [pid 6951] close(3 [pid 6952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6951] <... close resumed>) = 0 [pid 6950] <... exit_group resumed>) = ? [pid 6949] +++ exited with 0 +++ [pid 6948] exit_group(0 [pid 6952] <... prctl resumed>) = 0 [pid 6948] <... exit_group resumed>) = ? [pid 6952] setpgid(0, 0 [pid 6951] write(1, "executing program\n", 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6949, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>executing program [pid 6951] <... write resumed>) = 18 [pid 6951] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6952] <... setpgid resumed>) = 0 [pid 6951] <... bpf resumed>) = 3 [pid 6952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6951] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6952] <... openat resumed>) = 3 [pid 6952] write(3, "1000", 4) = 4 [pid 6951] <... bpf resumed>) = 4 [pid 6952] close(3 [pid 6951] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6952] <... close resumed>) = 0 executing program [pid 6952] write(1, "executing program\n", 18) = 18 [pid 6952] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6952] <... bpf resumed>) = 3 [pid 6950] +++ exited with 0 +++ [pid 6948] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6950, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 6953 attached [pid 6952] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6953] set_robust_list(0x55556540f660, 24) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6948, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6953 [pid 6952] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6954 attached [pid 6953] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6952] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6954] set_robust_list(0x55556540f660, 24 [pid 6953] <... prctl resumed>) = 0 [pid 6954] <... set_robust_list resumed>) = 0 [pid 6953] setpgid(0, 0 [pid 6954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6953] <... setpgid resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6954 ./strace-static-x86_64: Process 6955 attached [pid 6954] <... prctl resumed>) = 0 [pid 6953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6954] setpgid(0, 0) = 0 [pid 6955] set_robust_list(0x55556540f660, 24 [pid 6954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6953] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6955 [pid 6955] <... set_robust_list resumed>) = 0 [pid 6955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6953] write(3, "1000", 4) = 4 [pid 6955] <... prctl resumed>) = 0 [pid 6954] <... openat resumed>) = 3 [pid 6953] close(3 [pid 6952] <... bpf resumed>) = 5 [pid 6951] <... bpf resumed>) = 5 [pid 6955] setpgid(0, 0 [pid 6954] write(3, "1000", 4 [pid 6953] <... close resumed>) = 0 [pid 6955] <... setpgid resumed>) = 0 [pid 6954] <... write resumed>) = 4 [pid 6953] write(1, "executing program\n", 18 [pid 6952] exit_group(0executing program [pid 6954] close(3 [pid 6953] <... write resumed>) = 18 [pid 6952] <... exit_group resumed>) = ? [pid 6954] <... close resumed>) = 0 [pid 6954] write(1, "executing program\n", 18executing program [pid 6953] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6954] <... write resumed>) = 18 [pid 6954] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6951] exit_group(0 [pid 6954] <... bpf resumed>) = 3 [pid 6953] <... bpf resumed>) = 3 [pid 6953] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6952] +++ exited with 0 +++ [pid 6955] <... openat resumed>) = 3 [pid 6954] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6953] <... bpf resumed>) = 4 [pid 6951] <... exit_group resumed>) = ? [pid 6955] write(3, "1000", 4 [pid 6954] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6952, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 6954] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 6955] <... write resumed>) = 4 [pid 6953] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6951] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 6955] close(3 [pid 6954] exit_group(0 [pid 6953] <... bpf resumed>) = 5 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6955] <... close resumed>) = 0 executing program [pid 6955] write(1, "executing program\n", 18) = 18 [pid 6954] <... exit_group resumed>) = ? [pid 6953] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6955] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6956 attached ) = 3 [pid 6953] <... exit_group resumed>) = ? [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6956] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6956 [pid 6956] <... set_robust_list resumed>) = 0 [pid 6956] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6955] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 6957 attached [pid 6956] <... prctl resumed>) = 0 [pid 6955] <... bpf resumed>) = 4 [pid 6956] setpgid(0, 0 [pid 6955] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6957] set_robust_list(0x55556540f660, 24 [pid 6956] <... setpgid resumed>) = 0 [pid 6954] +++ exited with 0 +++ [pid 6953] +++ exited with 0 +++ [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6957 [pid 6957] <... set_robust_list resumed>) = 0 [pid 6956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6954, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6956] <... openat resumed>) = 3 [pid 6957] setpgid(0, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6957] <... setpgid resumed>) = 0 [pid 6956] write(3, "1000", 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6958 attached ./strace-static-x86_64: Process 6959 attached [pid 6957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6956] <... write resumed>) = 4 [pid 6958] set_robust_list(0x55556540f660, 24 [pid 6956] close(3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6958 executing program [pid 6956] <... close resumed>) = 0 [pid 6956] write(1, "executing program\n", 18) = 18 [pid 6956] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6959] set_robust_list(0x55556540f660, 24 [pid 6958] <... set_robust_list resumed>) = 0 [pid 6957] <... openat resumed>) = 3 [pid 6956] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6959 [pid 6959] <... set_robust_list resumed>) = 0 [pid 6958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6957] write(3, "1000", 4 [pid 6956] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6958] <... prctl resumed>) = 0 [pid 6957] <... write resumed>) = 4 [pid 6956] <... bpf resumed>) = 4 [pid 6959] <... prctl resumed>) = 0 [pid 6958] setpgid(0, 0 [pid 6957] close(3 [pid 6959] setpgid(0, 0 [pid 6957] <... close resumed>) = 0 [pid 6959] <... setpgid resumed>) = 0 executing program [pid 6958] <... setpgid resumed>) = 0 [pid 6957] write(1, "executing program\n", 18) = 18 [pid 6956] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6957] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6958] <... openat resumed>) = 3 [pid 6957] <... bpf resumed>) = 3 [pid 6959] <... openat resumed>) = 3 [pid 6958] write(3, "1000", 4 [pid 6959] write(3, "1000", 4 [pid 6957] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6959] <... write resumed>) = 4 [pid 6958] <... write resumed>) = 4 [pid 6958] close(3 [pid 6959] close(3) = 0 executing program [pid 6959] write(1, "executing program\n", 18 [pid 6958] <... close resumed>) = 0 [pid 6957] <... bpf resumed>) = 4 [pid 6959] <... write resumed>) = 18 [pid 6958] write(1, "executing program\n", 18executing program ) = 18 [pid 6958] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6957] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6958] <... bpf resumed>) = 3 [pid 6958] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6959] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6958] <... bpf resumed>) = 4 [pid 6959] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6958] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6959] <... bpf resumed>) = 4 [pid 6959] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6955] <... bpf resumed>) = 5 [pid 6955] exit_group(0 [pid 6959] <... bpf resumed>) = 5 [pid 6958] <... bpf resumed>) = 5 [pid 6957] <... bpf resumed>) = 5 [pid 6956] <... bpf resumed>) = 5 [pid 6959] exit_group(0 [pid 6958] exit_group(0 [pid 6957] exit_group(0 [pid 6956] exit_group(0 [pid 6955] <... exit_group resumed>) = ? [pid 6959] <... exit_group resumed>) = ? [pid 6958] <... exit_group resumed>) = ? [pid 6957] <... exit_group resumed>) = ? [pid 6956] <... exit_group resumed>) = ? [pid 6955] +++ exited with 0 +++ [pid 6959] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6959, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6958] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6958, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6960 attached , child_tidptr=0x55556540f650) = 6960 [pid 6957] +++ exited with 0 +++ [pid 6956] +++ exited with 0 +++ [pid 5844] <... restart_syscall resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6956, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6960] set_robust_list(0x55556540f660, 24 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6957, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6960] <... set_robust_list resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6962 attached ./strace-static-x86_64: Process 6961 attached [pid 6960] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6962] set_robust_list(0x55556540f660, 24 [pid 6961] set_robust_list(0x55556540f660, 24 [pid 6960] <... prctl resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6962 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6961 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6962] <... set_robust_list resumed>) = 0 [pid 6960] setpgid(0, 0 [pid 6962] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6961] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 6963 attached [pid 6962] <... prctl resumed>) = 0 [pid 6961] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6964 attached [pid 6963] set_robust_list(0x55556540f660, 24 [pid 6962] setpgid(0, 0 [pid 6960] <... setpgid resumed>) = 0 [pid 6961] <... prctl resumed>) = 0 [pid 6964] set_robust_list(0x55556540f660, 24 [pid 6963] <... set_robust_list resumed>) = 0 [pid 6962] <... setpgid resumed>) = 0 [pid 6961] setpgid(0, 0 [pid 6960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6964 [pid 6964] <... set_robust_list resumed>) = 0 [pid 6963] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6963 [pid 6964] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6961] <... setpgid resumed>) = 0 [pid 6960] <... openat resumed>) = 3 [pid 6964] <... prctl resumed>) = 0 [pid 6962] <... openat resumed>) = 3 [pid 6961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6964] setpgid(0, 0) = 0 [pid 6964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6963] <... prctl resumed>) = 0 [pid 6962] write(3, "1000", 4 [pid 6961] <... openat resumed>) = 3 [pid 6960] write(3, "1000", 4 [pid 6962] <... write resumed>) = 4 [pid 6963] setpgid(0, 0 [pid 6960] <... write resumed>) = 4 [pid 6963] <... setpgid resumed>) = 0 [pid 6960] close(3 [pid 6964] <... openat resumed>) = 3 [pid 6962] close(3 [pid 6961] write(3, "1000", 4 [pid 6960] <... close resumed>) = 0 [pid 6963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6960] write(1, "executing program\n", 18 [pid 6964] write(3, "1000", 4executing program [pid 6962] <... close resumed>) = 0 [pid 6961] <... write resumed>) = 4 [pid 6960] <... write resumed>) = 18 [pid 6964] <... write resumed>) = 4 [pid 6963] <... openat resumed>) = 3 [pid 6962] write(1, "executing program\n", 18 [pid 6961] close(3 [pid 6964] close(3executing program [pid 6962] <... write resumed>) = 18 [pid 6961] <... close resumed>) = 0 [pid 6964] <... close resumed>) = 0 [pid 6963] write(3, "1000", 4 [pid 6962] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program executing program [pid 6961] write(1, "executing program\n", 18 [pid 6960] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6964] write(1, "executing program\n", 18 [pid 6963] <... write resumed>) = 4 [pid 6962] <... bpf resumed>) = 3 [pid 6961] <... write resumed>) = 18 [pid 6964] <... write resumed>) = 18 [pid 6963] close(3 [pid 6960] <... bpf resumed>) = 3 [pid 6964] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6963] <... close resumed>) = 0 [pid 6962] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6961] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 6960] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6964] <... bpf resumed>) = 3 [pid 6963] write(1, "executing program\n", 18 [pid 6964] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6963] <... write resumed>) = 18 [pid 6962] <... bpf resumed>) = 4 [pid 6961] <... bpf resumed>) = 3 [pid 6960] <... bpf resumed>) = 4 [pid 6963] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6961] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6964] <... bpf resumed>) = 4 [pid 6963] <... bpf resumed>) = 3 [pid 6962] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6961] <... bpf resumed>) = 4 [pid 6960] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6964] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6963] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6962] <... bpf resumed>) = 5 [pid 6964] <... bpf resumed>) = 5 [pid 6960] <... bpf resumed>) = 5 [pid 6964] exit_group(0 [pid 6962] exit_group(0 [pid 6961] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6962] <... exit_group resumed>) = ? [pid 6961] <... bpf resumed>) = 5 [pid 6964] <... exit_group resumed>) = ? [pid 6963] <... bpf resumed>) = 4 [pid 6962] +++ exited with 0 +++ [pid 6961] exit_group(0 [pid 6960] exit_group(0) = ? [pid 6961] <... exit_group resumed>) = ? [pid 6960] +++ exited with 0 +++ [pid 6963] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6962, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6960, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6964] +++ exited with 0 +++ [pid 6963] <... bpf resumed>) = 5 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6964, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6963] exit_group(0) = ? [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6965 attached ./strace-static-x86_64: Process 6966 attached [pid 6966] set_robust_list(0x55556540f660, 24) = 0 [pid 6966] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6966 [pid 6966] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6967 attached [pid 6965] set_robust_list(0x55556540f660, 24 [pid 6963] +++ exited with 0 +++ [pid 6961] +++ exited with 0 +++ [pid 6966] setpgid(0, 0 [pid 6965] <... set_robust_list resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6965 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6967] set_robust_list(0x55556540f660, 24 [pid 6966] <... setpgid resumed>) = 0 [pid 6965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6961, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6967 [pid 6967] <... set_robust_list resumed>) = 0 [pid 6966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6965] <... prctl resumed>) = 0 [pid 6966] <... openat resumed>) = 3 [pid 6965] setpgid(0, 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6965] <... setpgid resumed>) = 0 [pid 6967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6966] write(3, "1000", 4./strace-static-x86_64: Process 6969 attached ./strace-static-x86_64: Process 6968 attached [pid 6967] <... prctl resumed>) = 0 [pid 6965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6969] set_robust_list(0x55556540f660, 24 [pid 6968] set_robust_list(0x55556540f660, 24 [pid 6967] setpgid(0, 0 [pid 6966] <... write resumed>) = 4 [pid 6965] <... openat resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6968 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6969 [pid 6969] <... set_robust_list resumed>) = 0 [pid 6968] <... set_robust_list resumed>) = 0 [pid 6967] <... setpgid resumed>) = 0 [pid 6966] close(3 [pid 6969] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6968] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6966] <... close resumed>) = 0 [pid 6965] write(3, "1000", 4 [pid 6969] <... prctl resumed>) = 0 [pid 6968] <... prctl resumed>) = 0 executing program [pid 6967] <... openat resumed>) = 3 [pid 6966] write(1, "executing program\n", 18 [pid 6965] <... write resumed>) = 4 [pid 6969] setpgid(0, 0 [pid 6968] setpgid(0, 0 [pid 6966] <... write resumed>) = 18 [pid 6965] close(3 [pid 6969] <... setpgid resumed>) = 0 [pid 6968] <... setpgid resumed>) = 0 [pid 6966] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6965] <... close resumed>) = 0 [pid 6969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6967] write(3, "1000", 4) = 4 [pid 6969] <... openat resumed>) = 3 [pid 6968] <... openat resumed>) = 3 [pid 6967] close(3 [pid 6966] <... bpf resumed>) = 3 executing program [pid 6965] write(1, "executing program\n", 18 [pid 6969] write(3, "1000", 4 [pid 6968] write(3, "1000", 4 [pid 6967] <... close resumed>) = 0 [pid 6966] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 6965] <... write resumed>) = 18 [pid 6969] <... write resumed>) = 4 [pid 6968] <... write resumed>) = 4 [pid 6967] write(1, "executing program\n", 18 [pid 6966] <... bpf resumed>) = 4 [pid 6965] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6969] close(3 [pid 6968] close(3 [pid 6967] <... write resumed>) = 18 [pid 6969] <... close resumed>) = 0 [pid 6968] <... close resumed>) = 0 [pid 6966] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6965] <... bpf resumed>) = 3 [pid 6969] write(1, "executing program\n", 18 executing program [pid 6968] write(1, "executing program\n", 18executing program [pid 6967] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6966] <... bpf resumed>) = 5 [pid 6969] <... write resumed>) = 18 [pid 6968] <... write resumed>) = 18 [pid 6965] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6969] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6968] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6967] <... bpf resumed>) = 3 [pid 6965] <... bpf resumed>) = 4 [pid 6969] <... bpf resumed>) = 3 [pid 6968] <... bpf resumed>) = 3 [pid 6967] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6966] exit_group(0 [pid 6965] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6969] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6968] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6966] <... exit_group resumed>) = ? [pid 6965] <... bpf resumed>) = 5 [pid 6969] <... bpf resumed>) = 4 [pid 6968] <... bpf resumed>) = 4 [pid 6967] <... bpf resumed>) = 4 [pid 6967] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6969] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6968] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6965] exit_group(0) = ? [pid 6966] +++ exited with 0 +++ [pid 6967] <... bpf resumed>) = 5 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6966, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6969] <... bpf resumed>) = 5 [pid 6967] exit_group(0 [pid 6968] <... bpf resumed>) = 5 [pid 6969] exit_group(0 [pid 6967] <... exit_group resumed>) = ? [pid 6965] +++ exited with 0 +++ [pid 6969] <... exit_group resumed>) = ? [pid 5849] <... restart_syscall resumed>) = 0 [pid 6968] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6965, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6968] <... exit_group resumed>) = ? [pid 6969] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6969, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6970 attached , child_tidptr=0x55556540f650) = 6970 ./strace-static-x86_64: Process 6971 attached [pid 6970] set_robust_list(0x55556540f660, 24 [pid 6968] +++ exited with 0 +++ [pid 6967] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6971 [pid 6971] set_robust_list(0x55556540f660, 24) = 0 [pid 6970] <... set_robust_list resumed>) = 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6968, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6970] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6971] <... prctl resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6971] setpgid(0, 0 [pid 6970] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 6972 attached [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6971] <... setpgid resumed>) = 0 [pid 6971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6973 attached [pid 6970] setpgid(0, 0 [pid 6972] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6972 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6972] <... set_robust_list resumed>) = 0 [pid 6971] <... openat resumed>) = 3 [pid 6970] <... setpgid resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6973 [pid 6973] set_robust_list(0x55556540f660, 24 [pid 6972] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6971] write(3, "1000", 4executing program [pid 6970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6973] <... set_robust_list resumed>) = 0 [pid 6972] <... prctl resumed>) = 0 [pid 6971] <... write resumed>) = 4 [pid 6973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6971] close(3 [pid 6970] <... openat resumed>) = 3 [pid 6973] <... prctl resumed>) = 0 [pid 6972] setpgid(0, 0 [pid 6971] <... close resumed>) = 0 [pid 6973] setpgid(0, 0 [pid 6971] write(1, "executing program\n", 18 [pid 6973] <... setpgid resumed>) = 0 [pid 6971] <... write resumed>) = 18 ./strace-static-x86_64: Process 6974 attached [pid 6973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6971] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6974] set_robust_list(0x55556540f660, 24 [pid 6973] <... openat resumed>) = 3 [pid 6972] <... setpgid resumed>) = 0 [pid 6971] <... bpf resumed>) = 3 [pid 6970] write(3, "1000", 4 [pid 6974] <... set_robust_list resumed>) = 0 [pid 6973] write(3, "1000", 4 [pid 6972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6971] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6970] <... write resumed>) = 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6974 [pid 6973] <... write resumed>) = 4 executing program [pid 6972] <... openat resumed>) = 3 [pid 6974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6973] close(3 [pid 6971] <... bpf resumed>) = 4 [pid 6970] close(3 [pid 6973] <... close resumed>) = 0 [pid 6970] <... close resumed>) = 0 [pid 6972] write(3, "1000", 4 [pid 6974] <... prctl resumed>) = 0 [pid 6972] <... write resumed>) = 4 [pid 6970] write(1, "executing program\n", 18 [pid 6972] close(3 [pid 6970] <... write resumed>) = 18 [pid 6973] write(1, "executing program\n", 18executing program ) = 18 [pid 6973] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6974] setpgid(0, 0 [pid 6972] <... close resumed>) = 0 executing program [pid 6974] <... setpgid resumed>) = 0 [pid 6973] <... bpf resumed>) = 3 [pid 6972] write(1, "executing program\n", 18 [pid 6971] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6970] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6973] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6972] <... write resumed>) = 18 [pid 6971] <... bpf resumed>) = 5 [pid 6974] <... openat resumed>) = 3 [pid 6973] <... bpf resumed>) = 4 [pid 6970] <... bpf resumed>) = 3 [pid 6974] write(3, "1000", 4 [pid 6972] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6974] <... write resumed>) = 4 [pid 6973] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6971] exit_group(0 [pid 6970] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6974] close(3 [pid 6973] <... bpf resumed>) = 5 [pid 6972] <... bpf resumed>) = 3 [pid 6971] <... exit_group resumed>) = ? [pid 6974] <... close resumed>) = 0 [pid 6972] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6970] <... bpf resumed>) = 4 [pid 6974] write(1, "executing program\n", 18 [pid 6973] exit_group(0) = ? executing program [pid 6974] <... write resumed>) = 18 [pid 6972] <... bpf resumed>) = 4 [pid 6970] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6974] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6972] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6974] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6974] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6971] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 6973] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6973, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6975 attached ./strace-static-x86_64: Process 6976 attached [pid 6975] set_robust_list(0x55556540f660, 24 [pid 6974] <... bpf resumed>) = 5 [pid 6970] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6975 [pid 6970] exit_group(0 [pid 6976] set_robust_list(0x55556540f660, 24 [pid 6975] <... set_robust_list resumed>) = 0 [pid 6974] exit_group(0 [pid 6972] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6976 [pid 6976] <... set_robust_list resumed>) = 0 [pid 6975] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6974] <... exit_group resumed>) = ? [pid 6972] exit_group(0 [pid 6970] <... exit_group resumed>) = ? [pid 6976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6975] <... prctl resumed>) = 0 [pid 6970] +++ exited with 0 +++ [pid 6975] setpgid(0, 0 [pid 6972] <... exit_group resumed>) = ? [pid 6975] <... setpgid resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6970, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6975] <... openat resumed>) = 3 [pid 6976] <... prctl resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6976] setpgid(0, 0 [pid 6975] write(3, "1000", 4 [pid 6976] <... setpgid resumed>) = 0 [pid 6975] <... write resumed>) = 4 [pid 6975] close(3 [pid 6976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6975] <... close resumed>) = 0 executing program [pid 6975] write(1, "executing program\n", 18 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6976] <... openat resumed>) = 3 [pid 6975] <... write resumed>) = 18 ./strace-static-x86_64: Process 6977 attached [pid 6976] write(3, "1000", 4 [pid 6977] set_robust_list(0x55556540f660, 24 [pid 6976] <... write resumed>) = 4 [pid 6975] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6977 [pid 6977] <... set_robust_list resumed>) = 0 executing program [pid 6976] close(3 [pid 6975] <... bpf resumed>) = 3 [pid 6977] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6976] <... close resumed>) = 0 [pid 6977] <... prctl resumed>) = 0 [pid 6976] write(1, "executing program\n", 18 [pid 6975] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6977] setpgid(0, 0 [pid 6976] <... write resumed>) = 18 [pid 6976] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6977] <... setpgid resumed>) = 0 [pid 6976] <... bpf resumed>) = 3 [pid 6975] <... bpf resumed>) = 4 [pid 6976] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6975] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6974] +++ exited with 0 +++ [pid 6972] +++ exited with 0 +++ [pid 6977] <... openat resumed>) = 3 [pid 6976] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6974, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6972, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6977] write(3, "1000", 4 [pid 6976] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6977] <... write resumed>) = 4 [pid 6975] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6977] close(3 [pid 6976] <... bpf resumed>) = 5 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6977] <... close resumed>) = 0 ./strace-static-x86_64: Process 6978 attached executing program [pid 6977] write(1, "executing program\n", 18./strace-static-x86_64: Process 6979 attached [pid 6978] set_robust_list(0x55556540f660, 24 [pid 6977] <... write resumed>) = 18 [pid 6975] exit_group(0 [pid 6978] <... set_robust_list resumed>) = 0 [pid 6975] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6978 [pid 6979] set_robust_list(0x55556540f660, 24 [pid 6977] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6976] exit_group(0 [pid 6979] <... set_robust_list resumed>) = 0 [pid 6977] <... bpf resumed>) = 3 [pid 6976] <... exit_group resumed>) = ? [pid 6979] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6978] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6979 [pid 6978] <... setpgid resumed>) = 0 [pid 6979] <... prctl resumed>) = 0 [pid 6978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6977] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6979] setpgid(0, 0 [pid 6978] <... openat resumed>) = 3 [pid 6977] <... bpf resumed>) = 4 [pid 6979] <... setpgid resumed>) = 0 [pid 6979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6978] write(3, "1000", 4 [pid 6979] <... openat resumed>) = 3 [pid 6978] <... write resumed>) = 4 [pid 6979] write(3, "1000", 4 [pid 6978] close(3 [pid 6979] <... write resumed>) = 4 [pid 6977] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program executing program [pid 6979] close(3 [pid 6978] <... close resumed>) = 0 [pid 6979] <... close resumed>) = 0 [pid 6978] write(1, "executing program\n", 18 [pid 6979] write(1, "executing program\n", 18 [pid 6978] <... write resumed>) = 18 [pid 6979] <... write resumed>) = 18 [pid 6979] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6978] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6979] <... bpf resumed>) = 3 [pid 6978] <... bpf resumed>) = 3 [pid 6979] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6978] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6979] <... bpf resumed>) = 4 [pid 6978] <... bpf resumed>) = 4 [pid 6979] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6978] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6976] +++ exited with 0 +++ [pid 6975] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6976, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6975, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] <... restart_syscall resumed>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 6979] <... bpf resumed>) = 5 [pid 6978] <... bpf resumed>) = 5 [pid 6977] <... bpf resumed>) = 5 [pid 6979] exit_group(0 [pid 6978] exit_group(0 [pid 6977] exit_group(0 [pid 6979] <... exit_group resumed>) = ? [pid 6978] <... exit_group resumed>) = ? [pid 6977] <... exit_group resumed>) = ? [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6980 attached [pid 6977] +++ exited with 0 +++ [pid 6980] set_robust_list(0x55556540f660, 24 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6980] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6981 attached [pid 6980] setpgid(0, 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6980 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 6980] <... setpgid resumed>) = 0 [pid 6980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6981 [pid 6981] set_robust_list(0x55556540f660, 24) = 0 [pid 6981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6980] <... openat resumed>) = 3 [pid 6981] <... prctl resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 6981] setpgid(0, 0 [pid 6980] write(3, "1000", 4 [pid 6981] <... setpgid resumed>) = 0 [pid 6980] <... write resumed>) = 4 [pid 6981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6980] close(3) = 0 [pid 6981] <... openat resumed>) = 3 [pid 6980] write(1, "executing program\n", 18executing program [pid 6981] write(3, "1000", 4 [pid 6980] <... write resumed>) = 18 [pid 6981] <... write resumed>) = 4 [pid 6980] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6981] close(3) = 0 [pid 6980] <... bpf resumed>) = 3 executing program [pid 6981] write(1, "executing program\n", 18) = 18 [pid 6981] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6980] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6979] +++ exited with 0 +++ [pid 6978] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6982 attached [pid 6981] <... bpf resumed>) = 3 [pid 6980] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6978, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6979, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6981] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6982] set_robust_list(0x55556540f660, 24) = 0 [pid 6981] <... bpf resumed>) = 4 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6983 attached [pid 6980] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6982 [pid 6981] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6983 ./strace-static-x86_64: Process 6984 attached [pid 6983] set_robust_list(0x55556540f660, 24 [pid 6982] <... prctl resumed>) = 0 [pid 6981] <... bpf resumed>) = 5 [pid 6980] <... bpf resumed>) = 5 [pid 6984] set_robust_list(0x55556540f660, 24 [pid 6983] <... set_robust_list resumed>) = 0 [pid 6982] setpgid(0, 0 [pid 6981] exit_group(0 [pid 6984] <... set_robust_list resumed>) = 0 [pid 6983] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6982] <... setpgid resumed>) = 0 [pid 6980] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6984 [pid 6984] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6983] <... prctl resumed>) = 0 [pid 6982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6981] <... exit_group resumed>) = ? [pid 6980] <... exit_group resumed>) = ? [pid 6984] <... prctl resumed>) = 0 [pid 6983] setpgid(0, 0 [pid 6982] <... openat resumed>) = 3 [pid 6982] write(3, "1000", 4 [pid 6984] setpgid(0, 0 [pid 6983] <... setpgid resumed>) = 0 [pid 6982] <... write resumed>) = 4 [pid 6983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6982] close(3 [pid 6984] <... setpgid resumed>) = 0 [pid 6983] <... openat resumed>) = 3 [pid 6982] <... close resumed>) = 0 [pid 6984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6982] write(1, "executing program\n", 18executing program [pid 6983] write(3, "1000", 4 [pid 6982] <... write resumed>) = 18 [pid 6984] <... openat resumed>) = 3 [pid 6983] <... write resumed>) = 4 [pid 6982] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6984] write(3, "1000", 4 [pid 6983] close(3 [pid 6982] <... bpf resumed>) = 3 [pid 6984] <... write resumed>) = 4 [pid 6983] <... close resumed>) = 0 executing program [pid 6983] write(1, "executing program\n", 18 [pid 6984] close(3 [pid 6983] <... write resumed>) = 18 [pid 6984] <... close resumed>) = 0 [pid 6983] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6982] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6984] write(1, "executing program\n", 18executing program [pid 6983] <... bpf resumed>) = 3 [pid 6982] <... bpf resumed>) = 4 [pid 6984] <... write resumed>) = 18 [pid 6983] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6984] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6983] <... bpf resumed>) = 4 [pid 6984] <... bpf resumed>) = 3 [pid 6982] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6984] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6983] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6981] +++ exited with 0 +++ [pid 6980] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6980, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6981, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6984] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6985 attached ./strace-static-x86_64: Process 6986 attached [pid 6985] set_robust_list(0x55556540f660, 24 [pid 6982] <... bpf resumed>) = 5 [pid 6986] set_robust_list(0x55556540f660, 24 [pid 6985] <... set_robust_list resumed>) = 0 [pid 6983] <... bpf resumed>) = 5 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6986 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6985 [pid 6986] <... set_robust_list resumed>) = 0 [pid 6985] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6984] <... bpf resumed>) = 5 [pid 6983] exit_group(0 [pid 6982] exit_group(0 [pid 6986] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6985] <... prctl resumed>) = 0 [pid 6984] exit_group(0 [pid 6983] <... exit_group resumed>) = ? [pid 6982] <... exit_group resumed>) = ? [pid 6986] <... prctl resumed>) = 0 [pid 6985] setpgid(0, 0 [pid 6984] <... exit_group resumed>) = ? [pid 6983] +++ exited with 0 +++ [pid 6985] <... setpgid resumed>) = 0 [pid 6986] setpgid(0, 0 [pid 6985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6986] <... setpgid resumed>) = 0 [pid 6986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6986] <... openat resumed>) = 3 [pid 6986] write(3, "1000", 4) = 4 [pid 6986] close(3) = 0 [pid 6985] <... openat resumed>) = 3 executing program [pid 6986] write(1, "executing program\n", 18) = 18 [pid 6985] write(3, "1000", 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6986] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6985] <... write resumed>) = 4 [pid 6986] <... bpf resumed>) = 3 [pid 6985] close(3 [pid 6986] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6985] <... close resumed>) = 0 [pid 6986] <... bpf resumed>) = 4 [pid 6985] write(1, "executing program\n", 18 [pid 6984] +++ exited with 0 +++ [pid 6982] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6984, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6982, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...>executing program ./strace-static-x86_64: Process 6987 attached [pid 6986] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6985] <... write resumed>) = 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6987 [pid 6985] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6987] set_robust_list(0x55556540f660, 24 [pid 6985] <... bpf resumed>) = 3 [pid 6987] <... set_robust_list resumed>) = 0 [pid 6985] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6985] <... bpf resumed>) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6987] <... prctl resumed>) = 0 [pid 6987] setpgid(0, 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6988 attached [pid 6987] <... setpgid resumed>) = 0 [pid 6985] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6989 attached [pid 6987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6988 [pid 6989] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6989 [pid 6989] <... set_robust_list resumed>) = 0 [pid 6988] set_robust_list(0x55556540f660, 24 [pid 6987] <... openat resumed>) = 3 [pid 6988] <... set_robust_list resumed>) = 0 [pid 6989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6986] <... bpf resumed>) = 5 [pid 6987] write(3, "1000", 4 [pid 6986] exit_group(0 [pid 6989] <... prctl resumed>) = 0 [pid 6985] <... bpf resumed>) = 5 [pid 6988] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6987] <... write resumed>) = 4 [pid 6988] <... prctl resumed>) = 0 [pid 6987] close(3 [pid 6986] <... exit_group resumed>) = ? [pid 6989] setpgid(0, 0 [pid 6988] setpgid(0, 0 [pid 6987] <... close resumed>) = 0 executing program [pid 6985] exit_group(0 [pid 6989] <... setpgid resumed>) = 0 [pid 6985] <... exit_group resumed>) = ? [pid 6987] write(1, "executing program\n", 18 [pid 6988] <... setpgid resumed>) = 0 [pid 6989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6987] <... write resumed>) = 18 [pid 6988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6987] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6988] <... openat resumed>) = 3 [pid 6987] <... bpf resumed>) = 3 [pid 6988] write(3, "1000", 4) = 4 [pid 6988] close(3 [pid 6987] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6989] <... openat resumed>) = 3 [pid 6988] <... close resumed>) = 0 [pid 6987] <... bpf resumed>) = 4 executing program [pid 6988] write(1, "executing program\n", 18 [pid 6989] write(3, "1000", 4) = 4 [pid 6988] <... write resumed>) = 18 [pid 6989] close(3 [pid 6988] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6989] <... close resumed>) = 0 [pid 6988] <... bpf resumed>) = 3 [pid 6987] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 6989] write(1, "executing program\n", 18 [pid 6988] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6989] <... write resumed>) = 18 [pid 6988] <... bpf resumed>) = 4 [pid 6988] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6989] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 6986] +++ exited with 0 +++ [pid 6989] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 6985] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6986, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6985, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6989] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 6990 attached [pid 6990] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6990 [pid 6990] <... set_robust_list resumed>) = 0 [pid 6990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6989] <... bpf resumed>) = 5 [pid 6988] <... bpf resumed>) = 5 [pid 6987] <... bpf resumed>) = 5 [pid 6990] setpgid(0, 0 [pid 6988] exit_group(0 [pid 6990] <... setpgid resumed>) = 0 [pid 6989] exit_group(0) = ? [pid 6987] exit_group(0) = ? [pid 6990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6988] <... exit_group resumed>) = ? [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6987] +++ exited with 0 +++ [pid 6990] <... openat resumed>) = 3 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6990] write(3, "1000", 4 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 6990] <... write resumed>) = 4 [pid 6990] close(3) = 0 executing program [pid 6990] write(1, "executing program\n", 18) = 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6991 [pid 6990] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 6991 attached ) = 3 [pid 6991] set_robust_list(0x55556540f660, 24 [pid 6990] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6991] <... set_robust_list resumed>) = 0 [pid 6991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6991] setpgid(0, 0 [pid 6990] <... bpf resumed>) = 4 [pid 6991] <... setpgid resumed>) = 0 [pid 6990] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 6991] write(3, "1000", 4) = 4 [pid 6991] close(3) = 0 [pid 6991] write(1, "executing program\n", 18) = 18 [pid 6991] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] <... restart_syscall resumed>) = 0 [pid 6991] <... bpf resumed>) = 3 [pid 6989] +++ exited with 0 +++ [pid 6988] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6992 attached [pid 6991] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6988, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6992] set_robust_list(0x55556540f660, 24) = 0 [pid 6992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6992] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6992 [pid 6991] <... bpf resumed>) = 4 [pid 6992] <... setpgid resumed>) = 0 [pid 6992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6991] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6992] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6994 attached ./strace-static-x86_64: Process 6993 attached [pid 6994] set_robust_list(0x55556540f660, 24 [pid 6993] set_robust_list(0x55556540f660, 24 [pid 6992] write(3, "1000", 4 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6994 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6993 [pid 6994] <... set_robust_list resumed>) = 0 [pid 6993] <... set_robust_list resumed>) = 0 [pid 6992] <... write resumed>) = 4 [pid 6994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6992] close(3 [pid 6990] <... bpf resumed>) = 5 [pid 6991] <... bpf resumed>) = 5 [pid 6994] <... prctl resumed>) = 0 [pid 6992] <... close resumed>) = 0 [pid 6994] setpgid(0, 0 [pid 6993] <... prctl resumed>) = 0 [pid 6992] write(1, "executing program\n", 18 [pid 6991] exit_group(0executing program [pid 6990] exit_group(0 [pid 6994] <... setpgid resumed>) = 0 [pid 6993] setpgid(0, 0 [pid 6992] <... write resumed>) = 18 [pid 6991] <... exit_group resumed>) = ? [pid 6994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6990] <... exit_group resumed>) = ? [pid 6994] <... openat resumed>) = 3 [pid 6993] <... setpgid resumed>) = 0 [pid 6992] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6994] write(3, "1000", 4 [pid 6993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6992] <... bpf resumed>) = 3 [pid 6994] <... write resumed>) = 4 executing program [pid 6994] close(3 [pid 6993] <... openat resumed>) = 3 [pid 6994] <... close resumed>) = 0 [pid 6994] write(1, "executing program\n", 18 [pid 6992] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6994] <... write resumed>) = 18 [pid 6994] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6993] write(3, "1000", 4 [pid 6992] <... bpf resumed>) = 4 [pid 6994] <... bpf resumed>) = 3 [pid 6993] <... write resumed>) = 4 [pid 6993] close(3) = 0 [pid 6993] write(1, "executing program\n", 18executing program ) = 18 [pid 6994] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6993] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6994] <... bpf resumed>) = 4 [pid 6993] <... bpf resumed>) = 3 [pid 6992] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6993] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6994] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6990] +++ exited with 0 +++ [pid 6993] <... bpf resumed>) = 4 [pid 6991] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6990, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6991, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6993] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 6995 attached [pid 6995] set_robust_list(0x55556540f660, 24) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6995] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6996 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 6995 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 6996 [pid 6996] set_robust_list(0x55556540f660, 24 [pid 6995] <... prctl resumed>) = 0 [pid 6994] <... bpf resumed>) = 5 [pid 6993] <... bpf resumed>) = 5 [pid 6992] <... bpf resumed>) = 5 [pid 6996] <... set_robust_list resumed>) = 0 [pid 6995] setpgid(0, 0 [pid 6993] exit_group(0 [pid 6992] exit_group(0 [pid 6994] exit_group(0 [pid 6993] <... exit_group resumed>) = ? [pid 6992] <... exit_group resumed>) = ? [pid 6996] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6995] <... setpgid resumed>) = 0 [pid 6992] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6994] <... exit_group resumed>) = ? [pid 6995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6996] <... prctl resumed>) = 0 [pid 6995] <... openat resumed>) = 3 [pid 6996] setpgid(0, 0) = 0 [pid 6995] write(3, "1000", 4 [pid 6996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6995] <... write resumed>) = 4 [pid 6995] close(3 [pid 6996] <... openat resumed>) = 3 executing program [pid 6995] <... close resumed>) = 0 [pid 6995] write(1, "executing program\n", 18 [pid 6996] write(3, "1000", 4 [pid 6995] <... write resumed>) = 18 [pid 6996] <... write resumed>) = 4 [pid 6996] close(3 [pid 6995] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6996] <... close resumed>) = 0 [pid 6995] <... bpf resumed>) = 3 executing program [pid 6996] write(1, "executing program\n", 18) = 18 [pid 6995] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6996] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6995] <... bpf resumed>) = 4 [pid 6996] <... bpf resumed>) = 3 [pid 6996] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6995] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6996] <... bpf resumed>) = 4 [pid 6994] +++ exited with 0 +++ [pid 6993] +++ exited with 0 +++ [pid 6996] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6994, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6993, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6998 attached ./strace-static-x86_64: Process 6997 attached [pid 6997] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 6999 attached [pid 6998] set_robust_list(0x55556540f660, 24 [pid 6997] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 6998 [pid 6999] set_robust_list(0x55556540f660, 24 [pid 6998] <... set_robust_list resumed>) = 0 [pid 6997] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 6997 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 6999 [pid 6999] <... set_robust_list resumed>) = 0 [pid 6998] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6997] <... prctl resumed>) = 0 [pid 6996] <... bpf resumed>) = 5 [pid 6995] <... bpf resumed>) = 5 [pid 6999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6998] <... prctl resumed>) = 0 [pid 6997] setpgid(0, 0 [pid 6996] exit_group(0 [pid 6999] <... prctl resumed>) = 0 [pid 6998] setpgid(0, 0 [pid 6997] <... setpgid resumed>) = 0 [pid 6996] <... exit_group resumed>) = ? [pid 6999] setpgid(0, 0 [pid 6998] <... setpgid resumed>) = 0 [pid 6997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6996] +++ exited with 0 +++ [pid 6995] exit_group(0 [pid 6999] <... setpgid resumed>) = 0 [pid 6998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6995] <... exit_group resumed>) = ? [pid 6999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6996, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6997] <... openat resumed>) = 3 [pid 6999] <... openat resumed>) = 3 [pid 6998] <... openat resumed>) = 3 [pid 6995] +++ exited with 0 +++ [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 6999] write(3, "1000", 4 [pid 6998] write(3, "1000", 4 [pid 6997] write(3, "1000", 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... restart_syscall resumed>) = 0 [pid 6999] <... write resumed>) = 4 [pid 6998] <... write resumed>) = 4 [pid 6997] <... write resumed>) = 4 [pid 6999] close(3 [pid 6998] close(3 [pid 6997] close(3 [pid 6999] <... close resumed>) = 0 [pid 6998] <... close resumed>) = 0 [pid 6997] <... close resumed>) = 0 executing program [pid 6997] write(1, "executing program\n", 18executing program executing program [pid 6999] write(1, "executing program\n", 18 [pid 6998] write(1, "executing program\n", 18 [pid 6997] <... write resumed>) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7000 attached ./strace-static-x86_64: Process 7001 attached [pid 6999] <... write resumed>) = 18 [pid 6998] <... write resumed>) = 18 [pid 6997] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7001] set_robust_list(0x55556540f660, 24 [pid 7000] set_robust_list(0x55556540f660, 24 [pid 6999] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 6998] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7001] <... set_robust_list resumed>) = 0 [pid 7000] <... set_robust_list resumed>) = 0 [pid 7001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6999] <... bpf resumed>) = 3 [pid 6998] <... bpf resumed>) = 3 [pid 6997] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7000 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7001 [pid 6999] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6998] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 6997] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7001] <... prctl resumed>) = 0 [pid 7000] <... prctl resumed>) = 0 [pid 6999] <... bpf resumed>) = 4 [pid 6998] <... bpf resumed>) = 4 [pid 6997] <... bpf resumed>) = 4 [pid 7001] setpgid(0, 0 [pid 6998] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7001] <... setpgid resumed>) = 0 [pid 7000] setpgid(0, 0 [pid 6999] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 6998] <... bpf resumed>) = 5 [pid 7001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7000] <... setpgid resumed>) = 0 [pid 6999] <... bpf resumed>) = 5 [pid 6997] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 7000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6997] exit_group(0 [pid 7001] <... openat resumed>) = 3 [pid 6999] exit_group(0 [pid 6998] exit_group(0 [pid 6997] <... exit_group resumed>) = ? [pid 6997] +++ exited with 0 +++ [pid 6999] <... exit_group resumed>) = ? [pid 6998] <... exit_group resumed>) = ? [pid 7001] write(3, "1000", 4 [pid 7000] <... openat resumed>) = 3 [pid 6999] +++ exited with 0 +++ [pid 6998] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6997, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 7001] <... write resumed>) = 4 [pid 7000] write(3, "1000", 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6998, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6999, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7001] close(3 [pid 7000] <... write resumed>) = 4 [pid 7000] close(3) = 0 [pid 7001] <... close resumed>) = 0 executing program [pid 7000] write(1, "executing program\n", 18 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7003 attached ./strace-static-x86_64: Process 7002 attached [pid 7001] write(1, "executing program\n", 18 [pid 7000] <... write resumed>) = 18 executing program [pid 7003] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 7004 attached ) = 0 [pid 7002] set_robust_list(0x55556540f660, 24 [pid 7001] <... write resumed>) = 18 [pid 7000] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7003 [pid 7004] set_robust_list(0x55556540f660, 24 [pid 7002] <... set_robust_list resumed>) = 0 [pid 7004] <... set_robust_list resumed>) = 0 [pid 7003] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7001] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7000] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7004 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7002 [pid 7004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7003] <... prctl resumed>) = 0 [pid 7002] <... prctl resumed>) = 0 [pid 7001] <... bpf resumed>) = 3 [pid 7000] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7004] <... prctl resumed>) = 0 [pid 7003] setpgid(0, 0 [pid 7002] setpgid(0, 0 [pid 7001] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7000] <... bpf resumed>) = 4 [pid 7004] setpgid(0, 0 [pid 7003] <... setpgid resumed>) = 0 [pid 7002] <... setpgid resumed>) = 0 [pid 7001] <... bpf resumed>) = 4 [pid 7000] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7004] <... setpgid resumed>) = 0 [pid 7003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7003] <... openat resumed>) = 3 [pid 7002] <... openat resumed>) = 3 [pid 7000] <... bpf resumed>) = 5 [pid 7004] <... openat resumed>) = 3 [pid 7002] write(3, "1000", 4 [pid 7001] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7004] write(3, "1000", 4 [pid 7000] exit_group(0 [pid 7004] <... write resumed>) = 4 [pid 7003] write(3, "1000", 4 [pid 7002] <... write resumed>) = 4 [pid 7001] <... bpf resumed>) = 5 [pid 7000] <... exit_group resumed>) = ? [pid 7004] close(3 [pid 7003] <... write resumed>) = 4 [pid 7002] close(3 [pid 7003] close(3executing program [pid 7002] <... close resumed>) = 0 [pid 7003] <... close resumed>) = 0 [pid 7002] write(1, "executing program\n", 18executing program [pid 7003] write(1, "executing program\n", 18 [pid 7002] <... write resumed>) = 18 [pid 7001] exit_group(0 [pid 7004] <... close resumed>) = 0 [pid 7003] <... write resumed>) = 18 [pid 7002] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 7001] <... exit_group resumed>) = ? [pid 7004] write(1, "executing program\n", 18 [pid 7003] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7002] <... bpf resumed>) = 3 [pid 7004] <... write resumed>) = 18 [pid 7004] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7003] <... bpf resumed>) = 3 [pid 7004] <... bpf resumed>) = 3 [pid 7003] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7002] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7004] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7003] <... bpf resumed>) = 4 [pid 7003] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7004] <... bpf resumed>) = 4 [pid 7002] <... bpf resumed>) = 4 [pid 7001] +++ exited with 0 +++ [pid 7000] +++ exited with 0 +++ [pid 7002] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7000, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7004] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7006 attached ./strace-static-x86_64: Process 7005 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7005 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7006 [pid 7005] set_robust_list(0x55556540f660, 24 [pid 7006] set_robust_list(0x55556540f660, 24 [pid 7005] <... set_robust_list resumed>) = 0 [pid 7005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7006] <... set_robust_list resumed>) = 0 [pid 7005] <... prctl resumed>) = 0 [pid 7005] setpgid(0, 0 [pid 7006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7004] <... bpf resumed>) = 5 [pid 7003] <... bpf resumed>) = 5 [pid 7002] <... bpf resumed>) = 5 [pid 7006] <... prctl resumed>) = 0 [pid 7005] <... setpgid resumed>) = 0 [pid 7002] exit_group(0 [pid 7006] setpgid(0, 0 [pid 7005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7004] exit_group(0 [pid 7003] exit_group(0executing program [pid 7006] <... setpgid resumed>) = 0 [pid 7005] <... openat resumed>) = 3 [pid 7004] <... exit_group resumed>) = ? [pid 7003] <... exit_group resumed>) = ? [pid 7002] <... exit_group resumed>) = ? [pid 7006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7005] write(3, "1000", 4 [pid 7004] +++ exited with 0 +++ [pid 7002] +++ exited with 0 +++ [pid 7006] <... openat resumed>) = 3 [pid 7005] <... write resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7004, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7002, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7005] close(3) = 0 [pid 7006] write(3, "1000", 4 [pid 7005] write(1, "executing program\n", 18 [pid 7006] <... write resumed>) = 4 [pid 7005] <... write resumed>) = 18 [pid 7003] +++ exited with 0 +++ [pid 7006] close(3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7003, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7006] <... close resumed>) = 0 executing program [pid 7006] write(1, "executing program\n", 18 [pid 7005] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7006] <... write resumed>) = 18 [pid 7005] <... bpf resumed>) = 3 [pid 7006] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7005] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7006] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7005] <... bpf resumed>) = 4 [pid 7006] <... bpf resumed>) = 4 [pid 7005] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7006] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7007 attached [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7008 attached [pid 7007] set_robust_list(0x55556540f660, 24 [pid 7005] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 7009 attached [pid 7007] <... set_robust_list resumed>) = 0 [pid 7006] <... bpf resumed>) = 5 [pid 7008] set_robust_list(0x55556540f660, 24 [pid 7009] set_robust_list(0x55556540f660, 24 [pid 7008] <... set_robust_list resumed>) = 0 [pid 7007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7005] exit_group(0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7009 [pid 7009] <... set_robust_list resumed>) = 0 [pid 7008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7007] <... prctl resumed>) = 0 [pid 7006] exit_group(0 [pid 7005] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7008 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7007 [pid 7009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7008] <... prctl resumed>) = 0 [pid 7007] setpgid(0, 0) = 0 [pid 7006] <... exit_group resumed>) = ? [pid 7009] <... prctl resumed>) = 0 [pid 7008] setpgid(0, 0 [pid 7009] setpgid(0, 0 [pid 7008] <... setpgid resumed>) = 0 [pid 7007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7009] <... setpgid resumed>) = 0 [pid 7008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7007] <... openat resumed>) = 3 [pid 7009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7007] write(3, "1000", 4executing program ) = 4 [pid 7007] close(3) = 0 [pid 7007] write(1, "executing program\n", 18) = 18 [pid 7007] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7009] <... openat resumed>) = 3 [pid 7008] <... openat resumed>) = 3 [pid 7007] <... bpf resumed>) = 3 [pid 7009] write(3, "1000", 4 [pid 7008] write(3, "1000", 4 [pid 7009] <... write resumed>) = 4 [pid 7008] <... write resumed>) = 4 [pid 7009] close(3 [pid 7007] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7006] +++ exited with 0 +++ [pid 7008] close(3 [pid 7005] +++ exited with 0 +++ [pid 7009] <... close resumed>) = 0 [pid 7008] <... close resumed>) = 0 [pid 7007] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7005, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program executing program [pid 7009] write(1, "executing program\n", 18 [pid 7008] write(1, "executing program\n", 18 [pid 7007] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7006, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7009] <... write resumed>) = 18 [pid 7008] <... write resumed>) = 18 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7009] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7008] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7010 attached [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7010 [pid 7010] set_robust_list(0x55556540f660, 24 [pid 7009] <... bpf resumed>) = 3 [pid 7008] <... bpf resumed>) = 3 [pid 7007] <... bpf resumed>) = 5 [pid 7010] <... set_robust_list resumed>) = 0 [pid 7008] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7007] exit_group(0 [pid 7010] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7009] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7008] <... bpf resumed>) = 4 [pid 7007] <... exit_group resumed>) = ? [pid 7010] <... prctl resumed>) = 0 [pid 7010] setpgid(0, 0 [pid 7009] <... bpf resumed>) = 4 [pid 7007] +++ exited with 0 +++ [pid 7010] <... setpgid resumed>) = 0 [pid 7008] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7009] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7010] <... openat resumed>) = 3 [pid 7010] write(3, "1000", 4./strace-static-x86_64: Process 7011 attached ) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7011 [pid 7011] set_robust_list(0x55556540f660, 24 [pid 7010] close(3 [pid 7011] <... set_robust_list resumed>) = 0 [pid 7010] <... close resumed>) = 0 [pid 7011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7010] write(1, "executing program\n", 18executing program ) = 18 [pid 7010] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7011] <... prctl resumed>) = 0 [pid 7010] <... bpf resumed>) = 3 [pid 7011] setpgid(0, 0) = 0 [pid 7010] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7012 attached [pid 7011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7012] set_robust_list(0x55556540f660, 24) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7012 [pid 7012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7011] <... openat resumed>) = 3 [pid 7010] <... bpf resumed>) = 4 [pid 7011] write(3, "1000", 4) = 4 [pid 7012] <... prctl resumed>) = 0 [pid 7011] close(3 [pid 7010] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7009] <... bpf resumed>) = 5 [pid 7008] <... bpf resumed>) = 5 [pid 7012] setpgid(0, 0 [pid 7011] <... close resumed>) = 0 [pid 7010] <... bpf resumed>) = 5 [pid 7009] exit_group(0 [pid 7008] exit_group(0executing program [pid 7012] <... setpgid resumed>) = 0 [pid 7011] write(1, "executing program\n", 18 [pid 7010] exit_group(0 [pid 7009] <... exit_group resumed>) = ? [pid 7008] <... exit_group resumed>) = ? [pid 7012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7011] <... write resumed>) = 18 [pid 7008] +++ exited with 0 +++ [pid 7012] <... openat resumed>) = 3 [pid 7011] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7010] <... exit_group resumed>) = ? [pid 7011] <... bpf resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7008, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7012] write(3, "1000", 4 [pid 7010] +++ exited with 0 +++ [pid 7009] +++ exited with 0 +++ [pid 7012] <... write resumed>) = 4 [pid 7011] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7012] close(3 [pid 7011] <... bpf resumed>) = 4 executing program [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7010, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7012] <... close resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7012] write(1, "executing program\n", 18) = 18 [pid 7012] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7012] <... bpf resumed>) = 3 [pid 7011] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7012] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7013 attached ) = 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7012] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 7014 attached [pid 7013] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7013 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7014] set_robust_list(0x55556540f660, 24 [pid 7013] <... set_robust_list resumed>) = 0 [pid 7014] <... set_robust_list resumed>) = 0 [pid 7013] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7013] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 7015 attached [pid 7014] <... prctl resumed>) = 0 [pid 7013] setpgid(0, 0 [pid 7014] setpgid(0, 0 [pid 7013] <... setpgid resumed>) = 0 [pid 7014] <... setpgid resumed>) = 0 [pid 7015] set_robust_list(0x55556540f660, 24 [pid 7014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7012] <... bpf resumed>) = 5 [pid 7011] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7014 [pid 7015] <... set_robust_list resumed>) = 0 [pid 7011] exit_group(0 [pid 7015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7014] <... openat resumed>) = 3 [pid 7013] <... openat resumed>) = 3 [pid 7012] exit_group(0 [pid 7011] <... exit_group resumed>) = ? [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7015 [pid 7015] <... prctl resumed>) = 0 [pid 7012] <... exit_group resumed>) = ? [pid 7015] setpgid(0, 0 [pid 7014] write(3, "1000", 4 [pid 7013] write(3, "1000", 4 [pid 7015] <... setpgid resumed>) = 0 [pid 7014] <... write resumed>) = 4 [pid 7013] <... write resumed>) = 4 [pid 7015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7014] close(3 [pid 7013] close(3executing program [pid 7014] <... close resumed>) = 0 [pid 7013] <... close resumed>) = 0 [pid 7013] write(1, "executing program\n", 18executing program [pid 7015] <... openat resumed>) = 3 [pid 7014] write(1, "executing program\n", 18 [pid 7013] <... write resumed>) = 18 [pid 7014] <... write resumed>) = 18 [pid 7013] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7015] write(3, "1000", 4 [pid 7014] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7015] <... write resumed>) = 4 [pid 7014] <... bpf resumed>) = 3 [pid 7013] <... bpf resumed>) = 3 [pid 7015] close(3 [pid 7013] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7015] <... close resumed>) = 0 [pid 7014] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7015] write(1, "executing program\n", 18executing program ) = 18 [pid 7014] <... bpf resumed>) = 4 [pid 7013] <... bpf resumed>) = 4 [pid 7015] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7014] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7015] <... bpf resumed>) = 3 [pid 7013] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7015] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 7015] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7012] +++ exited with 0 +++ [pid 7011] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7011, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7012, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7016 attached ./strace-static-x86_64: Process 7017 attached [pid 7016] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7017 [pid 7017] set_robust_list(0x55556540f660, 24 [pid 7016] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7016 [pid 7017] <... set_robust_list resumed>) = 0 [pid 7016] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7016] <... prctl resumed>) = 0 [pid 7017] setpgid(0, 0 [pid 7016] setpgid(0, 0) = 0 [pid 7017] <... setpgid resumed>) = 0 [pid 7016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7016] <... openat resumed>) = 3 [pid 7017] <... openat resumed>) = 3 [pid 7015] <... bpf resumed>) = 5 [pid 7014] <... bpf resumed>) = 5 [pid 7013] <... bpf resumed>) = 5 [pid 7017] write(3, "1000", 4 [pid 7016] write(3, "1000", 4 [pid 7015] exit_group(0 [pid 7017] <... write resumed>) = 4 [pid 7016] <... write resumed>) = 4 [pid 7015] <... exit_group resumed>) = ? [pid 7014] exit_group(0 [pid 7013] exit_group(0 [pid 7017] close(3 [pid 7016] close(3 [pid 7015] +++ exited with 0 +++ [pid 7014] <... exit_group resumed>) = ? [pid 7013] <... exit_group resumed>) = ? [pid 7017] <... close resumed>) = 0 [pid 7016] <... close resumed>) = 0 [pid 7016] write(1, "executing program\n", 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7015, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7017] write(1, "executing program\n", 18 [pid 7016] <... write resumed>) = 18 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 7017] <... write resumed>) = 18 [pid 7016] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program executing program [pid 7017] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7016] <... bpf resumed>) = 3 [pid 7017] <... bpf resumed>) = 3 [pid 7016] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7017] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7016] <... bpf resumed>) = 4 [pid 7017] <... bpf resumed>) = 4 [pid 7016] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7017] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] <... restart_syscall resumed>) = 0 [pid 7014] +++ exited with 0 +++ [pid 7013] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7014, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7020 attached ./strace-static-x86_64: Process 7019 attached , child_tidptr=0x55556540f650) = 7019 [pid 7020] set_robust_list(0x55556540f660, 24 [pid 7019] set_robust_list(0x55556540f660, 24 [pid 7020] <... set_robust_list resumed>) = 0 [pid 7019] <... set_robust_list resumed>) = 0 [pid 7020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7020 [pid 7020] <... prctl resumed>) = 0 [pid 7019] <... prctl resumed>) = 0 [pid 7020] setpgid(0, 0 [pid 7019] setpgid(0, 0./strace-static-x86_64: Process 7021 attached [pid 7020] <... setpgid resumed>) = 0 [pid 7019] <... setpgid resumed>) = 0 [pid 7016] <... bpf resumed>) = 5 [pid 7021] set_robust_list(0x55556540f660, 24 [pid 7020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7016] exit_group(0 [pid 7017] <... bpf resumed>) = 5 [pid 7016] <... exit_group resumed>) = ? [pid 7021] <... set_robust_list resumed>) = 0 [pid 7020] <... openat resumed>) = 3 [pid 7019] <... openat resumed>) = 3 [pid 7021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7021] setpgid(0, 0 [pid 7017] exit_group(0 [pid 7021] <... setpgid resumed>) = 0 [pid 7020] write(3, "1000", 4 [pid 7019] write(3, "1000", 4 [pid 7021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7020] <... write resumed>) = 4 [pid 7019] <... write resumed>) = 4 [pid 7020] close(3) = 0 [pid 7021] <... openat resumed>) = 3 [pid 7020] write(1, "executing program\n", 18 [pid 7019] close(3executing program ) = 0 [pid 7020] <... write resumed>) = 18 executing program [pid 7019] write(1, "executing program\n", 18 [pid 7021] write(3, "1000", 4 [pid 7020] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7019] <... write resumed>) = 18 [pid 7021] <... write resumed>) = 4 [pid 7017] <... exit_group resumed>) = ? [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7021 [pid 7021] close(3 [pid 7020] <... bpf resumed>) = 3 [pid 7019] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7021] <... close resumed>) = 0 [pid 7021] write(1, "executing program\n", 18executing program [pid 7020] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7019] <... bpf resumed>) = 3 [pid 7021] <... write resumed>) = 18 [pid 7020] <... bpf resumed>) = 4 [pid 7021] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7020] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7019] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7021] <... bpf resumed>) = 3 [pid 7019] <... bpf resumed>) = 4 [pid 7021] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7019] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7021] <... bpf resumed>) = 4 [pid 7021] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7017] +++ exited with 0 +++ [pid 7016] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7016, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7017, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5849] <... restart_syscall resumed>) = 0 [pid 7021] <... bpf resumed>) = 5 [pid 7020] <... bpf resumed>) = 5 [pid 7019] <... bpf resumed>) = 5 [pid 7019] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7019] <... exit_group resumed>) = ? [pid 7021] exit_group(0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7022 attached [pid 7021] <... exit_group resumed>) = ? [pid 7020] exit_group(0./strace-static-x86_64: Process 7023 attached [pid 7022] set_robust_list(0x55556540f660, 24 [pid 7021] +++ exited with 0 +++ [pid 7020] <... exit_group resumed>) = ? [pid 7019] +++ exited with 0 +++ [pid 7023] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7022 [pid 7022] <... set_robust_list resumed>) = 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7019, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7021, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7023 [pid 7022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7023] <... set_robust_list resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7022] <... prctl resumed>) = 0 [pid 7023] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7022] setpgid(0, 0 [pid 7023] <... prctl resumed>) = 0 [pid 7022] <... setpgid resumed>) = 0 [pid 7023] setpgid(0, 0 [pid 7022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7023] <... setpgid resumed>) = 0 [pid 7023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7022] <... openat resumed>) = 3 [pid 7023] <... openat resumed>) = 3 [pid 7022] write(3, "1000", 4 [pid 7023] write(3, "1000", 4 [pid 7022] <... write resumed>) = 4 [pid 7020] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 executing program [pid 7023] <... write resumed>) = 4 [pid 7022] close(3 [pid 7023] close(3) = 0 [pid 7022] <... close resumed>) = 0 [pid 7023] write(1, "executing program\n", 18 [pid 7022] write(1, "executing program\n", 18 [pid 7023] <... write resumed>) = 18 executing program [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7020, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7023] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7022] <... write resumed>) = 18 [pid 7022] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7024 attached [pid 7023] <... bpf resumed>) = 3 [pid 7022] <... bpf resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7026 attached ./strace-static-x86_64: Process 7025 attached [pid 7024] set_robust_list(0x55556540f660, 24 [pid 7023] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7022] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7026] set_robust_list(0x55556540f660, 24 [pid 7025] set_robust_list(0x55556540f660, 24 [pid 7024] <... set_robust_list resumed>) = 0 [pid 7024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7024 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7026 [pid 7024] setpgid(0, 0 [pid 7022] <... bpf resumed>) = 4 [pid 7024] <... setpgid resumed>) = 0 [pid 7024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7023] <... bpf resumed>) = 4 [pid 7026] <... set_robust_list resumed>) = 0 [pid 7025] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7025 [pid 7024] <... openat resumed>) = 3 [pid 7024] write(3, "1000", 4 [pid 7025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7024] <... write resumed>) = 4 [pid 7026] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7024] close(3 [pid 7025] <... prctl resumed>) = 0 executing program [pid 7026] <... prctl resumed>) = 0 [pid 7024] <... close resumed>) = 0 [pid 7023] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7022] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7026] setpgid(0, 0 [pid 7025] setpgid(0, 0 [pid 7024] write(1, "executing program\n", 18 [pid 7026] <... setpgid resumed>) = 0 [pid 7025] <... setpgid resumed>) = 0 [pid 7024] <... write resumed>) = 18 [pid 7022] <... bpf resumed>) = 5 [pid 7026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7024] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7026] <... openat resumed>) = 3 [pid 7025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7024] <... bpf resumed>) = 3 [pid 7023] <... bpf resumed>) = 5 [pid 7022] exit_group(0 [pid 7024] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7026] write(3, "1000", 4 [pid 7025] <... openat resumed>) = 3 [pid 7024] <... bpf resumed>) = 4 [pid 7022] <... exit_group resumed>) = ? [pid 7024] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7026] <... write resumed>) = 4 [pid 7025] write(3, "1000", 4 [pid 7023] exit_group(0 [pid 7022] +++ exited with 0 +++ [pid 7026] close(3 [pid 7025] <... write resumed>) = 4 [pid 7023] <... exit_group resumed>) = ? [pid 7026] <... close resumed>) = 0 [pid 7025] close(3 [pid 7024] <... bpf resumed>) = 5 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7024] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program executing program [pid 7026] write(1, "executing program\n", 18 [pid 7025] <... close resumed>) = 0 [pid 7026] <... write resumed>) = 18 [pid 7025] write(1, "executing program\n", 18./strace-static-x86_64: Process 7027 attached [pid 7026] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7025] <... write resumed>) = 18 [pid 7024] <... exit_group resumed>) = ? [pid 7026] <... bpf resumed>) = 3 [pid 7025] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7027] set_robust_list(0x55556540f660, 24 [pid 7026] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7027 [pid 7027] <... set_robust_list resumed>) = 0 [pid 7025] <... bpf resumed>) = 3 [pid 7027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7026] <... bpf resumed>) = 4 [pid 7027] setpgid(0, 0) = 0 [pid 7026] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7025] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7025] <... bpf resumed>) = 4 [pid 7027] write(3, "1000", 4) = 4 [pid 7027] close(3 [pid 7025] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7027] <... close resumed>) = 0 [pid 7024] +++ exited with 0 +++ [pid 7023] +++ exited with 0 +++ executing program [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7023, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7027] write(1, "executing program\n", 18 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7024, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7027] <... write resumed>) = 18 [pid 7027] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7028 attached [pid 7027] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7029 ./strace-static-x86_64: Process 7029 attached [pid 7028] set_robust_list(0x55556540f660, 24 [pid 7027] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7028 [pid 7029] set_robust_list(0x55556540f660, 24 [pid 7028] <... set_robust_list resumed>) = 0 [pid 7027] <... bpf resumed>) = 4 [pid 7028] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7029] <... set_robust_list resumed>) = 0 [pid 7028] <... prctl resumed>) = 0 [pid 7027] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7028] setpgid(0, 0) = 0 [pid 7028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7029] setpgid(0, 0) = 0 [pid 7029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7028] <... openat resumed>) = 3 [pid 7028] write(3, "1000", 4 [pid 7027] <... bpf resumed>) = 5 [pid 7026] <... bpf resumed>) = 5 [pid 7025] <... bpf resumed>) = 5 [pid 7028] <... write resumed>) = 4 [pid 7027] exit_group(0 [pid 7025] exit_group(0 [pid 7029] <... openat resumed>) = 3 [pid 7028] close(3 [pid 7027] <... exit_group resumed>) = ? [pid 7026] exit_group(0 [pid 7025] <... exit_group resumed>) = ? [pid 7029] write(3, "1000", 4 [pid 7028] <... close resumed>) = 0 [pid 7027] +++ exited with 0 +++ [pid 7026] <... exit_group resumed>) = ? [pid 7025] +++ exited with 0 +++ executing program [pid 7028] write(1, "executing program\n", 18 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7027, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7025, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7029] <... write resumed>) = 4 [pid 7028] <... write resumed>) = 18 [pid 7026] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7026, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 7029] close(3 [pid 7028] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7029] <... close resumed>) = 0 [pid 7029] write(1, "executing program\n", 18) = 18 [pid 7029] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7028] <... bpf resumed>) = 3 [pid 7028] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7029] <... bpf resumed>) = 3 [pid 7028] <... bpf resumed>) = 4 [pid 7029] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7028] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7029] <... bpf resumed>) = 4 [pid 7029] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7029] <... bpf resumed>) = 5 [pid 7028] <... bpf resumed>) = 5 [pid 7029] exit_group(0./strace-static-x86_64: Process 7030 attached ) = ? [pid 7030] set_robust_list(0x55556540f660, 24 [pid 7029] +++ exited with 0 +++ [pid 7028] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7030] <... set_robust_list resumed>) = 0 [pid 7028] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7030 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7032 attached ./strace-static-x86_64: Process 7031 attached [pid 7030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7032] set_robust_list(0x55556540f660, 24 [pid 7031] set_robust_list(0x55556540f660, 24 [pid 7032] <... set_robust_list resumed>) = 0 [pid 7031] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7031 [pid 7032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7032] <... prctl resumed>) = 0 [pid 7031] <... prctl resumed>) = 0 [pid 7030] <... prctl resumed>) = 0 [pid 7028] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7032 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7029, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7030] setpgid(0, 0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7032] setpgid(0, 0 [pid 7031] setpgid(0, 0 [pid 7030] <... setpgid resumed>) = 0 [pid 7032] <... setpgid resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 7031] <... setpgid resumed>) = 0 [pid 7030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7030] <... openat resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7032] <... openat resumed>) = 3 [pid 7031] <... openat resumed>) = 3 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7033 attached [pid 7030] write(3, "1000", 4) = 4 [pid 7030] close(3) = 0 [pid 7030] write(1, "executing program\n", 18) = 18 executing program [pid 7030] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7033] set_robust_list(0x55556540f660, 24 [pid 7032] write(3, "1000", 4 [pid 7031] write(3, "1000", 4./strace-static-x86_64: Process 7034 attached [pid 7033] <... set_robust_list resumed>) = 0 [pid 7032] <... write resumed>) = 4 [pid 7031] <... write resumed>) = 4 [pid 7030] <... bpf resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7034 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7033 [pid 7033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7032] close(3 [pid 7031] close(3 [pid 7030] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7034] set_robust_list(0x55556540f660, 24 [pid 7033] <... prctl resumed>) = 0 executing program [pid 7032] <... close resumed>) = 0 [pid 7031] <... close resumed>) = 0 [pid 7030] <... bpf resumed>) = 4 [pid 7034] <... set_robust_list resumed>) = 0 [pid 7033] setpgid(0, 0 [pid 7032] write(1, "executing program\n", 18 [pid 7031] write(1, "executing program\n", 18 [pid 7033] <... setpgid resumed>) = 0 [pid 7031] <... write resumed>) = 18 executing program [pid 7030] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7032] <... write resumed>) = 18 [pid 7031] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7034] <... prctl resumed>) = 0 [pid 7032] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7034] setpgid(0, 0 [pid 7033] <... openat resumed>) = 3 [pid 7031] <... bpf resumed>) = 3 [pid 7030] <... bpf resumed>) = 5 [pid 7032] <... bpf resumed>) = 3 [pid 7030] exit_group(0 [pid 7034] <... setpgid resumed>) = 0 [pid 7033] write(3, "1000", 4 [pid 7032] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7033] <... write resumed>) = 4 [pid 7031] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7030] <... exit_group resumed>) = ? [pid 7034] <... openat resumed>) = 3 [pid 7033] close(3 [pid 7032] <... bpf resumed>) = 4 [pid 7031] <... bpf resumed>) = 4 [pid 7030] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7030, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 7034] write(3, "1000", 4executing program executing program [pid 7033] <... close resumed>) = 0 [pid 7032] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7031] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7034] <... write resumed>) = 4 [pid 7033] write(1, "executing program\n", 18 [pid 7034] close(3 [pid 7033] <... write resumed>) = 18 [pid 7034] <... close resumed>) = 0 [pid 7034] write(1, "executing program\n", 18 [pid 7033] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7034] <... write resumed>) = 18 [pid 7034] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7033] <... bpf resumed>) = 3 [pid 7034] <... bpf resumed>) = 3 [pid 7033] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7034] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7033] <... bpf resumed>) = 4 [pid 7034] <... bpf resumed>) = 4 [pid 7033] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7034] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... restart_syscall resumed>) = 0 [pid 7034] <... bpf resumed>) = 5 [pid 7033] <... bpf resumed>) = 5 [pid 7032] <... bpf resumed>) = 5 [pid 7031] <... bpf resumed>) = 5 [pid 7033] exit_group(0 [pid 7032] exit_group(0 [pid 7034] exit_group(0 [pid 7033] <... exit_group resumed>) = ? [pid 7034] <... exit_group resumed>) = ? [pid 7032] <... exit_group resumed>) = ? [pid 7031] exit_group(0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7033] +++ exited with 0 +++ [pid 7034] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7033, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7031] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7035 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7035 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 7035] set_robust_list(0x55556540f660, 24) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7036 attached [pid 7035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7032] +++ exited with 0 +++ [pid 7031] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7031, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7032, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7035] <... prctl resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7036 ./strace-static-x86_64: Process 7037 attached [pid 7036] set_robust_list(0x55556540f660, 24 [pid 7035] setpgid(0, 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7037] set_robust_list(0x55556540f660, 24) = 0 [pid 7037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7036] <... set_robust_list resumed>) = 0 [pid 7035] <... setpgid resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7037 [pid 7037] <... prctl resumed>) = 0 [pid 7037] setpgid(0, 0) = 0 [pid 7036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7036] <... prctl resumed>) = 0 [pid 7036] setpgid(0, 0) = 0 [pid 7037] <... openat resumed>) = 3 [pid 7036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7037] write(3, "1000", 4./strace-static-x86_64: Process 7038 attached ) = 4 [pid 7036] <... openat resumed>) = 3 [pid 7035] <... openat resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7038] set_robust_list(0x55556540f660, 24 [pid 7037] close(3 [pid 7036] write(3, "1000", 4 [pid 7038] <... set_robust_list resumed>) = 0 [pid 7037] <... close resumed>) = 0 [pid 7036] <... write resumed>) = 4 executing program [pid 7038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7037] write(1, "executing program\n", 18 [pid 7036] close(3 [pid 7037] <... write resumed>) = 18 [pid 7036] <... close resumed>) = 0 [pid 7037] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7039 attached [pid 7038] <... prctl resumed>) = 0 [pid 7036] write(1, "executing program\n", 18 [pid 7035] write(3, "1000", 4 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7038 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7039 executing program [pid 7039] set_robust_list(0x55556540f660, 24 [pid 7038] setpgid(0, 0 [pid 7037] <... bpf resumed>) = 3 [pid 7036] <... write resumed>) = 18 [pid 7035] <... write resumed>) = 4 [pid 7039] <... set_robust_list resumed>) = 0 [pid 7038] <... setpgid resumed>) = 0 [pid 7036] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7037] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7035] close(3executing program [pid 7039] <... prctl resumed>) = 0 [pid 7038] <... openat resumed>) = 3 [pid 7036] <... bpf resumed>) = 3 [pid 7035] <... close resumed>) = 0 [pid 7039] setpgid(0, 0 [pid 7037] <... bpf resumed>) = 4 [pid 7035] write(1, "executing program\n", 18 [pid 7039] <... setpgid resumed>) = 0 [pid 7038] write(3, "1000", 4 [pid 7036] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7035] <... write resumed>) = 18 [pid 7039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7038] <... write resumed>) = 4 [pid 7037] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7039] <... openat resumed>) = 3 [pid 7038] close(3 [pid 7037] <... bpf resumed>) = 5 [pid 7036] <... bpf resumed>) = 4 [pid 7035] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7039] write(3, "1000", 4 [pid 7038] <... close resumed>) = 0 [pid 7037] exit_group(0 [pid 7036] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7035] <... bpf resumed>) = 3 executing program [pid 7039] <... write resumed>) = 4 [pid 7039] close(3 [pid 7038] write(1, "executing program\n", 18 [pid 7039] <... close resumed>) = 0 [pid 7038] <... write resumed>) = 18 [pid 7035] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7039] write(1, "executing program\n", 18 executing program [pid 7038] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7037] <... exit_group resumed>) = ? [pid 7039] <... write resumed>) = 18 [pid 7038] <... bpf resumed>) = 3 [pid 7036] <... bpf resumed>) = 5 [pid 7035] <... bpf resumed>) = 4 [pid 7039] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7038] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7039] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7038] <... bpf resumed>) = 4 [pid 7036] exit_group(0 [pid 7035] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7039] <... bpf resumed>) = 4 [pid 7036] <... exit_group resumed>) = ? [pid 7039] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7038] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7037] +++ exited with 0 +++ [pid 7039] <... bpf resumed>) = 5 [pid 7035] <... bpf resumed>) = 5 [pid 7038] <... bpf resumed>) = 5 [pid 7035] exit_group(0 [pid 7038] exit_group(0) = ? [pid 7039] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7037, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7035] <... exit_group resumed>) = ? [pid 7039] <... exit_group resumed>) = ? [pid 7036] +++ exited with 0 +++ [pid 7035] +++ exited with 0 +++ [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7036, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7035, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7039] +++ exited with 0 +++ [pid 7038] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7041 attached ./strace-static-x86_64: Process 7040 attached [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7039, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 7041] set_robust_list(0x55556540f660, 24 [pid 7040] set_robust_list(0x55556540f660, 24 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7041] <... set_robust_list resumed>) = 0 [pid 7040] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7041 ./strace-static-x86_64: Process 7042 attached [pid 7041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7040 [pid 7040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7042] set_robust_list(0x55556540f660, 24 [pid 7040] <... prctl resumed>) = 0 [pid 7042] <... set_robust_list resumed>) = 0 [pid 7041] <... prctl resumed>) = 0 [pid 7040] setpgid(0, 0) = 0 [pid 7041] setpgid(0, 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7042 [pid 7042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7041] <... setpgid resumed>) = 0 [pid 7040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7042] setpgid(0, 0 [pid 7041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7042] <... setpgid resumed>) = 0 [pid 7040] <... openat resumed>) = 3 [pid 7040] write(3, "1000", 4) = 4 [pid 7040] close(3 [pid 7042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7041] <... openat resumed>) = 3 executing program [pid 7040] <... close resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 7041] write(3, "1000", 4 [pid 7040] write(1, "executing program\n", 18 [pid 7042] <... openat resumed>) = 3 [pid 7041] <... write resumed>) = 4 [pid 7040] <... write resumed>) = 18 [pid 7042] write(3, "1000", 4 [pid 7041] close(3 [pid 7040] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7042] <... write resumed>) = 4 [pid 7042] close(3 [pid 7041] <... close resumed>) = 0 [pid 7040] <... bpf resumed>) = 3 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7043 attached [pid 7042] <... close resumed>) = 0 [pid 7041] write(1, "executing program\n", 18 [pid 7040] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program ./strace-static-x86_64: Process 7044 attached [pid 7043] set_robust_list(0x55556540f660, 24executing program [pid 7042] write(1, "executing program\n", 18 [pid 7041] <... write resumed>) = 18 [pid 7040] <... bpf resumed>) = 4 [pid 7043] <... set_robust_list resumed>) = 0 [pid 7042] <... write resumed>) = 18 [pid 7041] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7043] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7044] set_robust_list(0x55556540f660, 24 [pid 7043] <... prctl resumed>) = 0 [pid 7042] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7041] <... bpf resumed>) = 3 [pid 7040] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7043 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7044 [pid 7044] <... set_robust_list resumed>) = 0 [pid 7043] setpgid(0, 0 [pid 7042] <... bpf resumed>) = 3 [pid 7041] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7040] <... bpf resumed>) = 5 [pid 7044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7043] <... setpgid resumed>) = 0 [pid 7042] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7041] <... bpf resumed>) = 4 [pid 7044] <... prctl resumed>) = 0 [pid 7043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7041] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7040] exit_group(0 [pid 7041] <... bpf resumed>) = 5 [pid 7044] setpgid(0, 0 [pid 7043] <... openat resumed>) = 3 [pid 7042] <... bpf resumed>) = 4 [pid 7040] <... exit_group resumed>) = ? [pid 7044] <... setpgid resumed>) = 0 [pid 7043] write(3, "1000", 4 [pid 7042] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7041] exit_group(0 [pid 7043] <... write resumed>) = 4 [pid 7043] close(3executing program ) = 0 [pid 7041] <... exit_group resumed>) = ? [pid 7044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7043] write(1, "executing program\n", 18) = 18 [pid 7043] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7044] <... openat resumed>) = 3 [pid 7043] <... bpf resumed>) = 3 [pid 7044] write(3, "1000", 4 [pid 7043] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7042] <... bpf resumed>) = 5 [pid 7040] +++ exited with 0 +++ [pid 7044] <... write resumed>) = 4 [pid 7043] <... bpf resumed>) = 4 [pid 7042] exit_group(0 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 7044] close(3 [pid 7042] <... exit_group resumed>) = ? [pid 7044] <... close resumed>) = 0 [pid 7044] write(1, "executing program\n", 18) = 18 [pid 7044] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7043] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7044] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7044] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 7045 attached [pid 7043] <... bpf resumed>) = 5 [pid 7041] +++ exited with 0 +++ [pid 7045] set_robust_list(0x55556540f660, 24 [pid 7043] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7041, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7045 [pid 7045] <... set_robust_list resumed>) = 0 [pid 7043] <... exit_group resumed>) = ? [pid 7045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7045] setpgid(0, 0) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7045] write(3, "1000", 4./strace-static-x86_64: Process 7046 attached [pid 7044] <... bpf resumed>) = 5 [pid 7042] +++ exited with 0 +++ [pid 7045] <... write resumed>) = 4 [pid 7044] exit_group(0 [pid 7046] set_robust_list(0x55556540f660, 24 [pid 7045] close(3 [pid 7044] <... exit_group resumed>) = ? [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7046 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7042, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 7046] <... set_robust_list resumed>) = 0 [pid 7045] <... close resumed>) = 0 [pid 7045] write(1, "executing program\n", 18 [pid 7046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7045] <... write resumed>) = 18 [pid 7046] <... prctl resumed>) = 0 [pid 7045] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7046] setpgid(0, 0 [pid 7044] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7044, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7046] <... setpgid resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7045] <... bpf resumed>) = 3 [pid 7043] +++ exited with 0 +++ [pid 7045] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7047 attached ) = 4 [pid 7046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7047] set_robust_list(0x55556540f660, 24) = 0 [pid 7047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7047] setpgid(0, 0 [pid 7045] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 7048 attached [pid 7047] <... setpgid resumed>) = 0 [pid 7047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7048] set_robust_list(0x55556540f660, 24 [pid 7046] <... openat resumed>) = 3 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7043, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7048 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7047 [pid 7048] <... set_robust_list resumed>) = 0 [pid 7047] <... openat resumed>) = 3 [pid 7046] write(3, "1000", 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7047] write(3, "1000", 4 [pid 7048] <... prctl resumed>) = 0 [pid 7048] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 7049 attached [pid 7047] <... write resumed>) = 4 [pid 7046] <... write resumed>) = 4 [pid 7045] <... bpf resumed>) = 5 [pid 7046] close(3 [pid 7049] set_robust_list(0x55556540f660, 24 [pid 7048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7047] close(3 [pid 7046] <... close resumed>) = 0 [pid 7045] exit_group(0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7049 executing program [pid 7049] <... set_robust_list resumed>) = 0 [pid 7047] <... close resumed>) = 0 [pid 7046] write(1, "executing program\n", 18 [pid 7045] <... exit_group resumed>) = ? [pid 7049] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7048] <... openat resumed>) = 3 executing program [pid 7047] write(1, "executing program\n", 18 [pid 7046] <... write resumed>) = 18 [pid 7045] +++ exited with 0 +++ [pid 7048] write(3, "1000", 4 [pid 7047] <... write resumed>) = 18 [pid 7046] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7049] <... prctl resumed>) = 0 [pid 7048] <... write resumed>) = 4 [pid 7047] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7045, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7049] setpgid(0, 0) = 0 [pid 7048] close(3 [pid 7047] <... bpf resumed>) = 3 [pid 7046] <... bpf resumed>) = 3 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7048] <... close resumed>) = 0 [pid 7047] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 7048] write(1, "executing program\n", 18 [pid 7047] <... bpf resumed>) = 4 [pid 7046] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7048] <... write resumed>) = 18 [pid 7048] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7049] <... openat resumed>) = 3 [pid 7048] <... bpf resumed>) = 3 [pid 7047] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7048] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7046] <... bpf resumed>) = 4 [pid 7049] write(3, "1000", 4) = 4 [pid 7048] <... bpf resumed>) = 4 [pid 7046] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7049] close(3 [pid 7048] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7049] <... close resumed>) = 0 [pid 7049] write(1, "executing program\n", 18 [pid 5845] <... restart_syscall resumed>) = 0 executing program [pid 7049] <... write resumed>) = 18 [pid 7048] <... bpf resumed>) = 5 [pid 7047] <... bpf resumed>) = 5 [pid 7046] <... bpf resumed>) = 5 [pid 7049] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7048] exit_group(0 [pid 7047] exit_group(0 [pid 7046] exit_group(0) = ? [pid 7049] <... bpf resumed>) = 3 [pid 7048] <... exit_group resumed>) = ? [pid 7047] <... exit_group resumed>) = ? [pid 7046] +++ exited with 0 +++ [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7049] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7050 attached [pid 7050] set_robust_list(0x55556540f660, 24) = 0 [pid 7050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7049] <... bpf resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7046, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7050 [pid 7049] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7050] <... prctl resumed>) = 0 [pid 7050] setpgid(0, 0) = 0 [pid 7050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7050] write(3, "1000", 4) = 4 [pid 7050] close(3) = 0 executing program [pid 7050] write(1, "executing program\n", 18) = 18 [pid 7050] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7050] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5849] <... restart_syscall resumed>) = 0 [pid 7050] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7051 attached , child_tidptr=0x55556540f650) = 7051 [pid 7048] +++ exited with 0 +++ [pid 7047] +++ exited with 0 +++ [pid 7051] set_robust_list(0x55556540f660, 24 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7048, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7051] <... set_robust_list resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7047, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7052 attached [pid 7052] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 7053 attached [pid 7051] setpgid(0, 0 [pid 7050] <... bpf resumed>) = 5 [pid 7049] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7052 [pid 7051] <... setpgid resumed>) = 0 [pid 7053] set_robust_list(0x55556540f660, 24 [pid 7052] <... set_robust_list resumed>) = 0 [pid 7049] exit_group(0 [pid 7053] <... set_robust_list resumed>) = 0 [pid 7052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7050] exit_group(0 [pid 7049] <... exit_group resumed>) = ? [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7053 [pid 7053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7052] <... prctl resumed>) = 0 [pid 7051] <... openat resumed>) = 3 [pid 7050] <... exit_group resumed>) = ? [pid 7052] setpgid(0, 0 [pid 7053] <... prctl resumed>) = 0 [pid 7052] <... setpgid resumed>) = 0 [pid 7053] setpgid(0, 0 [pid 7052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7053] <... setpgid resumed>) = 0 [pid 7053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7052] <... openat resumed>) = 3 [pid 7051] write(3, "1000", 4) = 4 [pid 7051] close(3 [pid 7053] <... openat resumed>) = 3 [pid 7052] write(3, "1000", 4 [pid 7051] <... close resumed>) = 0 [pid 7053] write(3, "1000", 4 [pid 7052] <... write resumed>) = 4 [pid 7053] <... write resumed>) = 4 [pid 7052] close(3executing program [pid 7051] write(1, "executing program\n", 18 [pid 7053] close(3 [pid 7052] <... close resumed>) = 0 [pid 7051] <... write resumed>) = 18 executing program executing program [pid 7053] <... close resumed>) = 0 [pid 7052] write(1, "executing program\n", 18 [pid 7053] write(1, "executing program\n", 18 [pid 7052] <... write resumed>) = 18 [pid 7051] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7053] <... write resumed>) = 18 [pid 7053] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7052] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7051] <... bpf resumed>) = 3 [pid 7049] +++ exited with 0 +++ [pid 7053] <... bpf resumed>) = 3 [pid 7052] <... bpf resumed>) = 3 [pid 7050] +++ exited with 0 +++ [pid 7053] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7052] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7051] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7049, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7050, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7053] <... bpf resumed>) = 4 [pid 7052] <... bpf resumed>) = 4 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7052] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7053] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7051] <... bpf resumed>) = 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7051] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7054 attached [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7054 ./strace-static-x86_64: Process 7055 attached [pid 7054] set_robust_list(0x55556540f660, 24 [pid 7053] <... bpf resumed>) = 5 [pid 7052] <... bpf resumed>) = 5 [pid 7051] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7055 [pid 7055] set_robust_list(0x55556540f660, 24 [pid 7054] <... set_robust_list resumed>) = 0 [pid 7053] exit_group(0 [pid 7052] exit_group(0 [pid 7051] exit_group(0 [pid 7055] <... set_robust_list resumed>) = 0 [pid 7054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7052] <... exit_group resumed>) = ? [pid 7051] <... exit_group resumed>) = ? [pid 7055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7054] <... prctl resumed>) = 0 [pid 7053] <... exit_group resumed>) = ? [pid 7051] +++ exited with 0 +++ [pid 7053] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7051, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7055] <... prctl resumed>) = 0 [pid 7054] setpgid(0, 0 [pid 7052] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7053, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7055] setpgid(0, 0 [pid 7054] <... setpgid resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7055] <... setpgid resumed>) = 0 [pid 7054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7054] <... openat resumed>) = 3 [pid 5849] <... restart_syscall resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 7055] <... openat resumed>) = 3 [pid 7054] write(3, "1000", 4 [pid 7055] write(3, "1000", 4 [pid 7054] <... write resumed>) = 4 [pid 7055] <... write resumed>) = 4 [pid 7054] close(3 [pid 7055] close(3 [pid 7054] <... close resumed>) = 0 [pid 7055] <... close resumed>) = 0 [pid 7054] write(1, "executing program\n", 18 executing program executing program [pid 7055] write(1, "executing program\n", 18 [pid 7054] <... write resumed>) = 18 [pid 7055] <... write resumed>) = 18 [pid 7055] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7054] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7055] <... bpf resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7054] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 7058 attached ./strace-static-x86_64: Process 7057 attached ./strace-static-x86_64: Process 7056 attached [pid 7055] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7058] set_robust_list(0x55556540f660, 24 [pid 7057] set_robust_list(0x55556540f660, 24 [pid 7056] set_robust_list(0x55556540f660, 24 [pid 7055] <... bpf resumed>) = 4 [pid 7054] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7057 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7058 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7056 [pid 7058] <... set_robust_list resumed>) = 0 [pid 7057] <... set_robust_list resumed>) = 0 [pid 7056] <... set_robust_list resumed>) = 0 [pid 7055] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7054] <... bpf resumed>) = 4 [pid 7058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7055] <... bpf resumed>) = 5 [pid 7058] <... prctl resumed>) = 0 [pid 7057] <... prctl resumed>) = 0 [pid 7056] <... prctl resumed>) = 0 [pid 7058] setpgid(0, 0 [pid 7057] setpgid(0, 0 [pid 7058] <... setpgid resumed>) = 0 [pid 7057] <... setpgid resumed>) = 0 [pid 7056] setpgid(0, 0 [pid 7055] exit_group(0 [pid 7054] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7056] <... setpgid resumed>) = 0 [pid 7058] <... openat resumed>) = 3 [pid 7057] <... openat resumed>) = 3 [pid 7056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7055] <... exit_group resumed>) = ? [pid 7054] <... bpf resumed>) = 5 [pid 7058] write(3, "1000", 4 [pid 7056] <... openat resumed>) = 3 [pid 7058] <... write resumed>) = 4 [pid 7057] write(3, "1000", 4 [pid 7058] close(3 [pid 7057] <... write resumed>) = 4 [pid 7054] exit_group(0 [pid 7056] write(3, "1000", 4 [pid 7054] <... exit_group resumed>) = ? [pid 7056] <... write resumed>) = 4 [pid 7058] <... close resumed>) = 0 [pid 7057] close(3 executing program [pid 7056] close(3 [pid 7058] write(1, "executing program\n", 18 [pid 7057] <... close resumed>) = 0 [pid 7056] <... close resumed>) = 0 executing program [pid 7058] <... write resumed>) = 18 [pid 7057] write(1, "executing program\n", 18executing program [pid 7056] write(1, "executing program\n", 18 [pid 7058] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7057] <... write resumed>) = 18 [pid 7056] <... write resumed>) = 18 [pid 7058] <... bpf resumed>) = 3 [pid 7057] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7056] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7058] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7057] <... bpf resumed>) = 3 [pid 7058] <... bpf resumed>) = 4 [pid 7057] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7056] <... bpf resumed>) = 3 [pid 7056] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7058] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7057] <... bpf resumed>) = 4 [pid 7055] +++ exited with 0 +++ [pid 7054] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7055, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7057] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7056] <... bpf resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7054, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7056] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7058] <... bpf resumed>) = 5 [pid 7057] <... bpf resumed>) = 5 [pid 7056] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7058] exit_group(0 [pid 7056] exit_group(0 [pid 7057] exit_group(0 [pid 7058] <... exit_group resumed>) = ? [pid 7056] <... exit_group resumed>) = ? [pid 7058] +++ exited with 0 +++ [pid 7057] <... exit_group resumed>) = ? [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7059 attached [pid 7059] set_robust_list(0x55556540f660, 24) = 0 [pid 7059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7059] setpgid(0, 0) = 0 [pid 7059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 7060 attached ) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7059 [pid 7060] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7060 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7058, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7059] write(3, "1000", 4 [pid 7056] +++ exited with 0 +++ [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7060] <... set_robust_list resumed>) = 0 [pid 7059] <... write resumed>) = 4 [pid 7057] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7056, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 7061 attached [pid 7060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7059] close(3 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7061] set_robust_list(0x55556540f660, 24) = 0 [pid 7061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7060] <... prctl resumed>) = 0 [pid 7059] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7057, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7061 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7061] <... prctl resumed>) = 0 [pid 7060] setpgid(0, 0 executing program [pid 7059] write(1, "executing program\n", 18 [pid 7061] setpgid(0, 0 [pid 7060] <... setpgid resumed>) = 0 [pid 7059] <... write resumed>) = 18 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7061] <... setpgid resumed>) = 0 [pid 7060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7059] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7062 attached [pid 7061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7060] <... openat resumed>) = 3 [pid 7059] <... bpf resumed>) = 3 [pid 7061] <... openat resumed>) = 3 [pid 7062] set_robust_list(0x55556540f660, 24 [pid 7060] write(3, "1000", 4 [pid 7059] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7062 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7062] <... set_robust_list resumed>) = 0 [pid 7062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7061] write(3, "1000", 4 [pid 7060] <... write resumed>) = 4 [pid 7059] <... bpf resumed>) = 4 [pid 7061] <... write resumed>) = 4 [pid 7060] close(3 [pid 7062] <... prctl resumed>) = 0 [pid 7060] <... close resumed>) = 0 ./strace-static-x86_64: Process 7063 attached [pid 7061] close(3 executing program [pid 7060] write(1, "executing program\n", 18 [pid 7063] set_robust_list(0x55556540f660, 24 [pid 7062] setpgid(0, 0 [pid 7061] <... close resumed>) = 0 [pid 7060] <... write resumed>) = 18 [pid 7059] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7063 [pid 7063] <... set_robust_list resumed>) = 0 [pid 7062] <... setpgid resumed>) = 0 executing program [pid 7061] write(1, "executing program\n", 18 [pid 7062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7061] <... write resumed>) = 18 [pid 7060] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7059] <... bpf resumed>) = 5 [pid 7063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7062] <... openat resumed>) = 3 [pid 7061] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7063] <... prctl resumed>) = 0 [pid 7062] write(3, "1000", 4 [pid 7061] <... bpf resumed>) = 3 [pid 7060] <... bpf resumed>) = 3 [pid 7059] exit_group(0 [pid 7063] setpgid(0, 0 [pid 7062] <... write resumed>) = 4 [pid 7061] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7060] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7059] <... exit_group resumed>) = ? [pid 7063] <... setpgid resumed>) = 0 [pid 7062] close(3 [pid 7061] <... bpf resumed>) = 4 [pid 7060] <... bpf resumed>) = 4 [pid 7059] +++ exited with 0 +++ [pid 7063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7062] <... close resumed>) = 0 [pid 7061] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7060] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7059, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 7062] write(1, "executing program\n", 18 [pid 7061] <... bpf resumed>) = 5 [pid 7060] <... bpf resumed>) = 5 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7063] <... openat resumed>) = 3 [pid 7062] <... write resumed>) = 18 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7063] write(3, "1000", 4 [pid 7062] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7063] <... write resumed>) = 4 [pid 7063] close(3 [pid 7062] <... bpf resumed>) = 3 [pid 7061] exit_group(0 [pid 7060] exit_group(0 [pid 7063] <... close resumed>) = 0 [pid 7061] <... exit_group resumed>) = ? [pid 7060] <... exit_group resumed>) = ? executing program [pid 7063] write(1, "executing program\n", 18 [pid 7062] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7063] <... write resumed>) = 18 [pid 7063] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7062] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 7064 attached [pid 7063] <... bpf resumed>) = 3 [pid 7064] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7064 [pid 7064] <... set_robust_list resumed>) = 0 [pid 7064] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7063] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7062] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7064] <... prctl resumed>) = 0 [pid 7064] setpgid(0, 0) = 0 [pid 7064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7063] <... bpf resumed>) = 4 [pid 7064] <... openat resumed>) = 3 [pid 7063] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7064] write(3, "1000", 4) = 4 [pid 7061] +++ exited with 0 +++ [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7061, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7064] close(3executing program ) = 0 [pid 7064] write(1, "executing program\n", 18 [pid 7060] +++ exited with 0 +++ [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 7064] <... write resumed>) = 18 [pid 7064] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7060, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7064] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 7064] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7066 attached ./strace-static-x86_64: Process 7065 attached [pid 7064] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7066] set_robust_list(0x55556540f660, 24 [pid 7065] set_robust_list(0x55556540f660, 24 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7066 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7065 [pid 7066] <... set_robust_list resumed>) = 0 [pid 7065] <... set_robust_list resumed>) = 0 [pid 7066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7065] setpgid(0, 0) = 0 [pid 7066] <... prctl resumed>) = 0 [pid 7065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7064] <... bpf resumed>) = 5 [pid 7063] <... bpf resumed>) = 5 [pid 7062] <... bpf resumed>) = 5 [pid 7062] exit_group(0 [pid 7066] setpgid(0, 0 [pid 7065] <... openat resumed>) = 3 [pid 7064] exit_group(0 [pid 7063] exit_group(0 [pid 7066] <... setpgid resumed>) = 0 [pid 7064] <... exit_group resumed>) = ? [pid 7065] write(3, "1000", 4 [pid 7063] <... exit_group resumed>) = ? [pid 7062] <... exit_group resumed>) = ? [pid 7066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7065] <... write resumed>) = 4 [pid 7064] +++ exited with 0 +++ [pid 7063] +++ exited with 0 +++ [pid 7062] +++ exited with 0 +++ [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7063, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7064, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7065] close(3 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7062, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7065] <... close resumed>) = 0 executing program [pid 7065] write(1, "executing program\n", 18) = 18 [pid 7066] <... openat resumed>) = 3 [pid 7065] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7066] write(3, "1000", 4) = 4 [pid 7066] close(3 [pid 7065] <... bpf resumed>) = 3 [pid 7066] <... close resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 7066] write(1, "executing program\n", 18 [pid 7065] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7068 attached ./strace-static-x86_64: Process 7069 attached ./strace-static-x86_64: Process 7067 attached [pid 7066] <... write resumed>) = 18 [pid 7065] <... bpf resumed>) = 4 [pid 7065] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7068 [pid 7066] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7069] set_robust_list(0x55556540f660, 24 [pid 7068] set_robust_list(0x55556540f660, 24 [pid 7067] set_robust_list(0x55556540f660, 24 [pid 7069] <... set_robust_list resumed>) = 0 [pid 7068] <... set_robust_list resumed>) = 0 [pid 7067] <... set_robust_list resumed>) = 0 [pid 7069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7065] <... bpf resumed>) = 5 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7069 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7067 [pid 7067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7065] exit_group(0 [pid 7069] <... prctl resumed>) = 0 [pid 7068] <... prctl resumed>) = 0 [pid 7067] <... prctl resumed>) = 0 [pid 7066] <... bpf resumed>) = 3 [pid 7069] setpgid(0, 0 [pid 7068] setpgid(0, 0 [pid 7067] setpgid(0, 0 [pid 7065] <... exit_group resumed>) = ? [pid 7069] <... setpgid resumed>) = 0 [pid 7068] <... setpgid resumed>) = 0 [pid 7067] <... setpgid resumed>) = 0 [pid 7066] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7065] +++ exited with 0 +++ [pid 7069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7069] <... openat resumed>) = 3 [pid 7068] <... openat resumed>) = 3 [pid 7067] <... openat resumed>) = 3 [pid 7066] <... bpf resumed>) = 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7065, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7069] write(3, "1000", 4 [pid 7068] write(3, "1000", 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7069] <... write resumed>) = 4 [pid 7068] <... write resumed>) = 4 [pid 7067] write(3, "1000", 4 [pid 7066] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 7070 attached [pid 7069] close(3 [pid 7068] close(3 [pid 7067] <... write resumed>) = 4 [pid 7070] set_robust_list(0x55556540f660, 24 [pid 7069] <... close resumed>) = 0 [pid 7068] <... close resumed>) = 0 [pid 7067] close(3 [pid 7070] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7070 executing program executing program executing program [pid 7070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7069] write(1, "executing program\n", 18 [pid 7068] write(1, "executing program\n", 18 [pid 7067] <... close resumed>) = 0 [pid 7067] write(1, "executing program\n", 18 [pid 7069] <... write resumed>) = 18 [pid 7068] <... write resumed>) = 18 [pid 7067] <... write resumed>) = 18 [pid 7070] <... prctl resumed>) = 0 [pid 7069] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7068] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7070] setpgid(0, 0 [pid 7069] <... bpf resumed>) = 3 [pid 7067] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7066] <... bpf resumed>) = 5 [pid 7070] <... setpgid resumed>) = 0 [pid 7069] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7068] <... bpf resumed>) = 3 [pid 7067] <... bpf resumed>) = 3 [pid 7066] exit_group(0 [pid 7070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7069] <... bpf resumed>) = 4 [pid 7068] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7067] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7070] <... openat resumed>) = 3 [pid 7069] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7068] <... bpf resumed>) = 4 [pid 7067] <... bpf resumed>) = 4 [pid 7066] <... exit_group resumed>) = ? [pid 7070] write(3, "1000", 4 [pid 7069] <... bpf resumed>) = 5 [pid 7070] <... write resumed>) = 4 [pid 7067] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7068] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7070] close(3 [pid 7069] exit_group(0executing program [pid 7070] <... close resumed>) = 0 [pid 7069] <... exit_group resumed>) = ? [pid 7070] write(1, "executing program\n", 18) = 18 [pid 7070] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7070] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7069] +++ exited with 0 +++ [pid 7068] <... bpf resumed>) = 5 [pid 7067] <... bpf resumed>) = 5 [pid 7066] +++ exited with 0 +++ [pid 7068] exit_group(0 [pid 7067] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7069, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7066, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7070] <... bpf resumed>) = 4 [pid 7068] <... exit_group resumed>) = ? [pid 7067] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7070] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5845] <... restart_syscall resumed>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7071 attached [pid 7071] set_robust_list(0x55556540f660, 24 [pid 7070] <... bpf resumed>) = 5 [pid 7068] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7071 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7068, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7071] <... set_robust_list resumed>) = 0 [pid 7070] exit_group(0 [pid 7071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7070] <... exit_group resumed>) = ? [pid 7071] <... prctl resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7071] setpgid(0, 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7072 attached [pid 7071] <... setpgid resumed>) = 0 [pid 7071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7073 ./strace-static-x86_64: Process 7073 attached [pid 7072] set_robust_list(0x55556540f660, 24 [pid 7071] <... openat resumed>) = 3 [pid 7073] set_robust_list(0x55556540f660, 24 [pid 7072] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7072 [pid 7071] write(3, "1000", 4 [pid 7073] <... set_robust_list resumed>) = 0 [pid 7072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7071] <... write resumed>) = 4 [pid 7071] close(3 [pid 7073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7071] <... close resumed>) = 0 executing program [pid 7071] write(1, "executing program\n", 18) = 18 [pid 7071] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7072] <... prctl resumed>) = 0 [pid 7073] <... prctl resumed>) = 0 [pid 7072] setpgid(0, 0 [pid 7073] setpgid(0, 0 [pid 7072] <... setpgid resumed>) = 0 [pid 7071] <... bpf resumed>) = 3 [pid 7073] <... setpgid resumed>) = 0 [pid 7072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7071] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7072] <... openat resumed>) = 3 [pid 7073] <... openat resumed>) = 3 [pid 7072] write(3, "1000", 4 [pid 7071] <... bpf resumed>) = 4 [pid 7070] +++ exited with 0 +++ [pid 7067] +++ exited with 0 +++ [pid 7072] <... write resumed>) = 4 [pid 7073] write(3, "1000", 4 [pid 7072] close(3) = 0 [pid 7073] <... write resumed>) = 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7067, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 7072] write(1, "executing program\n", 18 [pid 7073] close(3 [pid 7071] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7072] <... write resumed>) = 18 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7073] <... close resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7075 attached ./strace-static-x86_64: Process 7074 attached [pid 7073] write(1, "executing program\n", 18 executing program [pid 7072] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7075 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7074 [pid 7075] set_robust_list(0x55556540f660, 24 [pid 7074] set_robust_list(0x55556540f660, 24 [pid 7075] <... set_robust_list resumed>) = 0 [pid 7074] <... set_robust_list resumed>) = 0 [pid 7073] <... write resumed>) = 18 [pid 7072] <... bpf resumed>) = 3 [pid 7075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7073] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7072] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7075] <... prctl resumed>) = 0 [pid 7075] setpgid(0, 0 [pid 7074] <... prctl resumed>) = 0 [pid 7073] <... bpf resumed>) = 3 [pid 7075] <... setpgid resumed>) = 0 [pid 7074] setpgid(0, 0 [pid 7073] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7074] <... setpgid resumed>) = 0 [pid 7072] <... bpf resumed>) = 4 [pid 7075] <... openat resumed>) = 3 [pid 7074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7073] <... bpf resumed>) = 4 [pid 7072] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7071] <... bpf resumed>) = 5 [pid 7075] write(3, "1000", 4 [pid 7074] <... openat resumed>) = 3 [pid 7073] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7075] <... write resumed>) = 4 [pid 7074] write(3, "1000", 4 [pid 7072] <... bpf resumed>) = 5 [pid 7075] close(3 [pid 7074] <... write resumed>) = 4 [pid 7073] <... bpf resumed>) = 5 [pid 7071] exit_group(0 [pid 7075] <... close resumed>) = 0 [pid 7074] close(3 [pid 7073] exit_group(0 [pid 7072] exit_group(0 [pid 7071] <... exit_group resumed>) = ? executing program [pid 7075] write(1, "executing program\n", 18 [pid 7074] <... close resumed>) = 0 [pid 7072] <... exit_group resumed>) = ? [pid 7075] <... write resumed>) = 18 [pid 7073] <... exit_group resumed>) = ? [pid 7072] +++ exited with 0 +++ [pid 7075] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 7074] write(1, "executing program\n", 18 [pid 7075] <... bpf resumed>) = 3 [pid 7074] <... write resumed>) = 18 [pid 7075] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7074] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7073] +++ exited with 0 +++ [pid 7071] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7072, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7075] <... bpf resumed>) = 4 [pid 7074] <... bpf resumed>) = 3 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7073, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7071, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] <... restart_syscall resumed>) = 0 [pid 7074] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7075] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7076 attached [pid 7075] exit_group(0 [pid 7074] <... bpf resumed>) = 4 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7076] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7076 [pid 7076] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 7077 attached [pid 7076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7075] <... exit_group resumed>) = ? [pid 7074] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7076] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 7078 attached [pid 7076] setpgid(0, 0 [pid 7078] set_robust_list(0x55556540f660, 24 [pid 7076] <... setpgid resumed>) = 0 [pid 7076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7078] <... set_robust_list resumed>) = 0 [pid 7077] set_robust_list(0x55556540f660, 24 [pid 7075] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7078 [pid 7078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7077] <... set_robust_list resumed>) = 0 [pid 7076] <... openat resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7075, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7078] <... prctl resumed>) = 0 [pid 7077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7076] write(3, "1000", 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7077 [pid 7078] setpgid(0, 0 [pid 7077] <... prctl resumed>) = 0 [pid 7076] <... write resumed>) = 4 [pid 7078] <... setpgid resumed>) = 0 [pid 7077] setpgid(0, 0 [pid 7076] close(3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7077] <... setpgid resumed>) = 0 [pid 7076] <... close resumed>) = 0 [pid 7076] write(1, "executing program\n", 18executing program [pid 7077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 7079 attached [pid 7078] <... openat resumed>) = 3 [pid 7076] <... write resumed>) = 18 [pid 7074] <... bpf resumed>) = 5 [pid 7079] set_robust_list(0x55556540f660, 24 [pid 7078] write(3, "1000", 4 [pid 7077] <... openat resumed>) = 3 [pid 7076] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7074] exit_group(0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7079 [pid 7079] <... set_robust_list resumed>) = 0 [pid 7078] <... write resumed>) = 4 [pid 7079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7078] close(3 [pid 7077] write(3, "1000", 4 [pid 7076] <... bpf resumed>) = 3 [pid 7074] <... exit_group resumed>) = ? [pid 7079] <... prctl resumed>) = 0 [pid 7078] <... close resumed>) = 0 [pid 7077] <... write resumed>) = 4 [pid 7076] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7074] +++ exited with 0 +++ [pid 7079] setpgid(0, 0 [pid 7077] close(3executing program [pid 7079] <... setpgid resumed>) = 0 [pid 7078] write(1, "executing program\n", 18 [pid 7077] <... close resumed>) = 0 [pid 7076] <... bpf resumed>) = 4 [pid 7079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7078] <... write resumed>) = 18 [pid 7077] write(1, "executing program\n", 18executing program [pid 7078] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7074, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7079] <... openat resumed>) = 3 [pid 7078] <... bpf resumed>) = 3 [pid 7077] <... write resumed>) = 18 [pid 7076] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7079] write(3, "1000", 4 [pid 7078] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7077] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7079] <... write resumed>) = 4 [pid 7078] <... bpf resumed>) = 4 [pid 7077] <... bpf resumed>) = 3 [pid 7079] close(3 [pid 7077] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 7079] <... close resumed>) = 0 [pid 7078] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7077] <... bpf resumed>) = 4 [pid 7079] write(1, "executing program\n", 18) = 18 [pid 7079] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7077] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7079] <... bpf resumed>) = 3 [pid 7079] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 7079] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7078] <... bpf resumed>) = 5 [pid 7077] <... bpf resumed>) = 5 [pid 7076] <... bpf resumed>) = 5 [pid 5842] <... restart_syscall resumed>) = 0 [pid 7079] <... bpf resumed>) = 5 [pid 7078] exit_group(0 [pid 7079] exit_group(0 [pid 7077] exit_group(0 [pid 7076] exit_group(0 [pid 7077] <... exit_group resumed>) = ? [pid 7076] <... exit_group resumed>) = ? [pid 7079] <... exit_group resumed>) = ? [pid 7078] <... exit_group resumed>) = ? [pid 7079] +++ exited with 0 +++ [pid 7077] +++ exited with 0 +++ [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7077, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 7080 attached ) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7080 [pid 7080] set_robust_list(0x55556540f660, 24) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7081 attached [pid 7080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7076] +++ exited with 0 +++ ./strace-static-x86_64: Process 7082 attached [pid 7081] set_robust_list(0x55556540f660, 24 [pid 7080] <... prctl resumed>) = 0 [pid 7078] +++ exited with 0 +++ [pid 7082] set_robust_list(0x55556540f660, 24 [pid 7080] setpgid(0, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7082] <... set_robust_list resumed>) = 0 [pid 7081] <... set_robust_list resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7080] <... setpgid resumed>) = 0 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7081 [pid 7081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7082 [pid 7082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7081] <... prctl resumed>) = 0 [pid 7080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7082] <... prctl resumed>) = 0 [pid 7081] setpgid(0, 0 [pid 7080] <... openat resumed>) = 3 [pid 7082] setpgid(0, 0 [pid 7081] <... setpgid resumed>) = 0 [pid 7082] <... setpgid resumed>) = 0 [pid 7081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7080] write(3, "1000", 4 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7084 attached ./strace-static-x86_64: Process 7083 attached [pid 7081] <... openat resumed>) = 3 [pid 7080] <... write resumed>) = 4 [pid 7082] <... openat resumed>) = 3 [pid 7080] close(3 [pid 7081] write(3, "1000", 4 [pid 7080] <... close resumed>) = 0 [pid 7081] <... write resumed>) = 4 [pid 7080] write(1, "executing program\n", 18 executing program [pid 7081] close(3 [pid 7082] write(3, "1000", 4 [pid 7081] <... close resumed>) = 0 [pid 7080] <... write resumed>) = 18 [pid 7082] <... write resumed>) = 4 executing program [pid 7081] write(1, "executing program\n", 18 [pid 7080] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7083 [pid 7082] close(3 [pid 7081] <... write resumed>) = 18 executing program [pid 7080] <... bpf resumed>) = 3 [pid 7082] <... close resumed>) = 0 [pid 7081] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7080] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7084] set_robust_list(0x55556540f660, 24 [pid 7083] set_robust_list(0x55556540f660, 24 [pid 7082] write(1, "executing program\n", 18 [pid 7081] <... bpf resumed>) = 3 [pid 7084] <... set_robust_list resumed>) = 0 [pid 7083] <... set_robust_list resumed>) = 0 [pid 7082] <... write resumed>) = 18 [pid 7080] <... bpf resumed>) = 4 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7084 [pid 7084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7082] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7081] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7084] <... prctl resumed>) = 0 [pid 7083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7084] setpgid(0, 0 [pid 7083] <... prctl resumed>) = 0 [pid 7082] <... bpf resumed>) = 3 [pid 7081] <... bpf resumed>) = 4 [pid 7084] <... setpgid resumed>) = 0 [pid 7083] setpgid(0, 0) = 0 [pid 7080] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7082] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7080] <... bpf resumed>) = 5 [pid 7084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7083] <... openat resumed>) = 3 [pid 7082] <... bpf resumed>) = 4 [pid 7081] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7084] <... openat resumed>) = 3 [pid 7081] <... bpf resumed>) = 5 [pid 7080] exit_group(0) = ? [pid 7084] write(3, "1000", 4 [pid 7083] write(3, "1000", 4 [pid 7082] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7081] exit_group(0 [pid 7084] <... write resumed>) = 4 [pid 7083] <... write resumed>) = 4 [pid 7084] close(3 [pid 7083] close(3) = 0 [pid 7084] <... close resumed>) = 0 [pid 7081] <... exit_group resumed>) = ? executing program executing program [pid 7084] write(1, "executing program\n", 18 [pid 7083] write(1, "executing program\n", 18 [pid 7084] <... write resumed>) = 18 [pid 7083] <... write resumed>) = 18 [pid 7084] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7083] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7084] <... bpf resumed>) = 3 [pid 7083] <... bpf resumed>) = 3 [pid 7084] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7083] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7084] <... bpf resumed>) = 4 [pid 7084] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7083] <... bpf resumed>) = 4 [pid 7082] <... bpf resumed>) = 5 [pid 7080] +++ exited with 0 +++ [pid 7082] exit_group(0) = ? [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7083] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7085 attached , child_tidptr=0x55556540f650) = 7085 [pid 7085] set_robust_list(0x55556540f660, 24) = 0 [pid 7085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7085] setpgid(0, 0) = 0 [pid 7085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7085] write(3, "1000", 4) = 4 [pid 7085] close(3) = 0 executing program [pid 7085] write(1, "executing program\n", 18) = 18 [pid 7085] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7081] +++ exited with 0 +++ [pid 7084] <... bpf resumed>) = 5 [pid 7085] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7081, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7084] exit_group(0 [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7084] <... exit_group resumed>) = ? [pid 5845] <... restart_syscall resumed>) = 0 [pid 7085] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7086 attached [pid 7086] set_robust_list(0x55556540f660, 24) = 0 [pid 7085] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7083] <... bpf resumed>) = 5 [pid 7082] +++ exited with 0 +++ [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7086 [pid 7086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7083] exit_group(0 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7086] <... prctl resumed>) = 0 [pid 7083] <... exit_group resumed>) = ? [pid 7086] setpgid(0, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7086] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 7087 attached [pid 7086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7087 [pid 7087] set_robust_list(0x55556540f660, 24 [pid 7086] <... openat resumed>) = 3 [pid 7087] <... set_robust_list resumed>) = 0 [pid 7086] write(3, "1000", 4) = 4 [pid 7087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7086] close(3) = 0 executing program [pid 7087] <... prctl resumed>) = 0 [pid 7086] write(1, "executing program\n", 18 [pid 7087] setpgid(0, 0 [pid 7086] <... write resumed>) = 18 [pid 7087] <... setpgid resumed>) = 0 [pid 7086] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7086] <... bpf resumed>) = 3 [pid 7087] <... openat resumed>) = 3 [pid 7086] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7085] <... bpf resumed>) = 5 [pid 7084] +++ exited with 0 +++ [pid 7087] write(3, "1000", 4 [pid 7086] <... bpf resumed>) = 4 [pid 7085] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7084, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 7087] <... write resumed>) = 4 [pid 7085] <... exit_group resumed>) = ? [pid 7087] close(3 [pid 7086] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 7087] <... close resumed>) = 0 [pid 7087] write(1, "executing program\n", 18) = 18 [pid 7087] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7087] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 7088 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7088 [pid 7088] set_robust_list(0x55556540f660, 24 [pid 7087] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7085] +++ exited with 0 +++ [pid 7083] +++ exited with 0 +++ [pid 7088] <... set_robust_list resumed>) = 0 [pid 7087] <... bpf resumed>) = 4 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7083, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7088] <... prctl resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7088] setpgid(0, 0 [pid 7087] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7088] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 7090 attached ./strace-static-x86_64: Process 7089 attached [pid 7088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7089] set_robust_list(0x55556540f660, 24 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7090 [pid 7090] set_robust_list(0x55556540f660, 24 [pid 7089] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7089 [pid 7090] <... set_robust_list resumed>) = 0 [pid 7089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7088] <... openat resumed>) = 3 [pid 7090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7088] write(3, "1000", 4 [pid 7090] <... prctl resumed>) = 0 [pid 7088] <... write resumed>) = 4 [pid 7090] setpgid(0, 0 [pid 7089] <... prctl resumed>) = 0 [pid 7088] close(3 [pid 7089] setpgid(0, 0) = 0 [pid 7090] <... setpgid resumed>) = 0 [pid 7089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7088] <... close resumed>) = 0 [pid 7088] write(1, "executing program\n", 18) = 18 executing program [pid 7088] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7089] <... openat resumed>) = 3 [pid 7090] <... openat resumed>) = 3 [pid 7089] write(3, "1000", 4) = 4 [pid 7089] close(3 [pid 7088] <... bpf resumed>) = 3 executing program [pid 7089] <... close resumed>) = 0 [pid 7089] write(1, "executing program\n", 18) = 18 [pid 7089] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7090] write(3, "1000", 4 [pid 7089] <... bpf resumed>) = 3 [pid 7088] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7090] <... write resumed>) = 4 [pid 7088] <... bpf resumed>) = 4 [pid 7090] close(3) = 0 executing program [pid 7090] write(1, "executing program\n", 18) = 18 [pid 7090] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7089] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7088] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7090] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 7089] <... bpf resumed>) = 4 [pid 7089] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7090] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7089] <... bpf resumed>) = 5 [pid 7088] <... bpf resumed>) = 5 [pid 7087] <... bpf resumed>) = 5 [pid 7086] <... bpf resumed>) = 5 [pid 7090] <... bpf resumed>) = 5 [pid 7089] exit_group(0 [pid 7088] exit_group(0 [pid 7087] exit_group(0 [pid 7086] exit_group(0 [pid 7090] exit_group(0 [pid 7089] <... exit_group resumed>) = ? [pid 7088] <... exit_group resumed>) = ? [pid 7087] <... exit_group resumed>) = ? [pid 7086] <... exit_group resumed>) = ? [pid 7090] <... exit_group resumed>) = ? [pid 7088] +++ exited with 0 +++ [pid 7086] +++ exited with 0 +++ [pid 7089] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 5845] <... restart_syscall resumed>) = 0 [pid 5847] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7091 attached [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7093 attached ./strace-static-x86_64: Process 7092 attached [pid 7093] set_robust_list(0x55556540f660, 24) = 0 [pid 7092] set_robust_list(0x55556540f660, 24 [pid 7091] set_robust_list(0x55556540f660, 24 [pid 7090] +++ exited with 0 +++ [pid 7087] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7091 [pid 7093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7092] <... set_robust_list resumed>) = 0 [pid 7091] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7093 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7092 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7087, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7093] <... prctl resumed>) = 0 [pid 7092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7093] setpgid(0, 0 [pid 7092] <... prctl resumed>) = 0 [pid 7093] <... setpgid resumed>) = 0 [pid 7091] <... prctl resumed>) = 0 [pid 7092] setpgid(0, 0 [pid 7091] setpgid(0, 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7095 attached ./strace-static-x86_64: Process 7094 attached [pid 7093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7092] <... setpgid resumed>) = 0 [pid 7091] <... setpgid resumed>) = 0 [pid 7095] set_robust_list(0x55556540f660, 24 [pid 7093] <... openat resumed>) = 3 [pid 7092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7094 [pid 7095] <... set_robust_list resumed>) = 0 [pid 7094] set_robust_list(0x55556540f660, 24 [pid 7093] write(3, "1000", 4 [pid 7092] <... openat resumed>) = 3 [pid 7091] <... openat resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7095 [pid 7095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7094] <... set_robust_list resumed>) = 0 [pid 7093] <... write resumed>) = 4 [pid 7091] write(3, "1000", 4 [pid 7095] <... prctl resumed>) = 0 [pid 7094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7093] close(3 [pid 7092] write(3, "1000", 4 [pid 7091] <... write resumed>) = 4 [pid 7095] setpgid(0, 0 [pid 7094] <... prctl resumed>) = 0 [pid 7093] <... close resumed>) = 0 [pid 7092] <... write resumed>) = 4 [pid 7091] close(3 [pid 7093] write(1, "executing program\n", 18 executing program [pid 7092] close(3 [pid 7095] <... setpgid resumed>) = 0 [pid 7094] setpgid(0, 0 [pid 7092] <... close resumed>) = 0 [pid 7094] <... setpgid resumed>) = 0 [pid 7093] <... write resumed>) = 18 [pid 7091] <... close resumed>) = 0 [pid 7095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7093] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7092] write(1, "executing program\n", 18executing program executing program [pid 7091] write(1, "executing program\n", 18 [pid 7095] <... openat resumed>) = 3 [pid 7094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7093] <... bpf resumed>) = 3 [pid 7092] <... write resumed>) = 18 [pid 7091] <... write resumed>) = 18 [pid 7095] write(3, "1000", 4 [pid 7092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7091] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7095] <... write resumed>) = 4 [pid 7094] <... openat resumed>) = 3 [pid 7093] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7092] <... bpf resumed>) = 3 [pid 7091] <... bpf resumed>) = 3 [pid 7095] close(3 [pid 7094] write(3, "1000", 4 [pid 7093] <... bpf resumed>) = 4 [pid 7092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7091] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7095] <... close resumed>) = 0 executing program [pid 7094] <... write resumed>) = 4 [pid 7095] write(1, "executing program\n", 18 [pid 7094] close(3 [pid 7095] <... write resumed>) = 18 [pid 7094] <... close resumed>) = 0 [pid 7093] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7092] <... bpf resumed>) = 4 [pid 7091] <... bpf resumed>) = 4 executing program [pid 7095] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7094] write(1, "executing program\n", 18 [pid 7093] <... bpf resumed>) = 5 [pid 7094] <... write resumed>) = 18 [pid 7092] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7095] <... bpf resumed>) = 3 [pid 7093] exit_group(0 [pid 7091] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7093] <... exit_group resumed>) = ? [pid 7095] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7094] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7092] <... bpf resumed>) = 5 [pid 7091] <... bpf resumed>) = 5 [pid 7094] <... bpf resumed>) = 3 [pid 7093] +++ exited with 0 +++ [pid 7092] exit_group(0 [pid 7091] exit_group(0) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7095] <... bpf resumed>) = 4 [pid 7094] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7092] <... exit_group resumed>) = ? [pid 7095] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7096 attached [pid 7094] <... bpf resumed>) = 4 [pid 7096] set_robust_list(0x55556540f660, 24) = 0 [pid 7096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7096 [pid 7096] <... prctl resumed>) = 0 [pid 7096] setpgid(0, 0) = 0 [pid 7096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7095] <... bpf resumed>) = 5 [pid 7094] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7091] +++ exited with 0 +++ [pid 7096] <... openat resumed>) = 3 [pid 7095] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7096] write(3, "1000", 4) = 4 [pid 7096] close(3executing program ) = 0 [pid 7095] <... exit_group resumed>) = ? [pid 7096] write(1, "executing program\n", 18) = 18 [pid 7096] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7096] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7094] <... bpf resumed>) = 5 [pid 7092] +++ exited with 0 +++ [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 7097 attached [pid 7096] <... bpf resumed>) = 4 [pid 7096] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7097] set_robust_list(0x55556540f660, 24 [pid 7094] exit_group(0 [pid 7097] <... set_robust_list resumed>) = 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7097 [pid 7097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7094] <... exit_group resumed>) = ? [pid 7097] setpgid(0, 0) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 7098 attached [pid 7096] <... bpf resumed>) = 5 [pid 7095] +++ exited with 0 +++ [pid 7097] <... openat resumed>) = 3 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7098 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7098] set_robust_list(0x55556540f660, 24) = 0 [pid 7096] exit_group(0) = ? [pid 7097] write(3, "1000", 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7097] <... write resumed>) = 4 ./strace-static-x86_64: Process 7099 attached [pid 7097] close(3) = 0 [pid 7098] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 7097] write(1, "executing program\n", 18) = 18 [pid 7097] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7098] <... prctl resumed>) = 0 [pid 7099] set_robust_list(0x55556540f660, 24 [pid 7098] setpgid(0, 0 [pid 7097] <... bpf resumed>) = 3 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7099 [pid 7099] <... set_robust_list resumed>) = 0 [pid 7098] <... setpgid resumed>) = 0 [pid 7097] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7097] <... bpf resumed>) = 4 [pid 7099] <... prctl resumed>) = 0 [pid 7099] setpgid(0, 0) = 0 [pid 7098] <... openat resumed>) = 3 [pid 7099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7098] write(3, "1000", 4 [pid 7097] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7096] +++ exited with 0 +++ [pid 7094] +++ exited with 0 +++ [pid 7098] <... write resumed>) = 4 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7096, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7098] close(3) = 0 [pid 7099] write(3, "1000", 4 [pid 7098] write(1, "executing program\n", 18 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 7099] <... write resumed>) = 4 [pid 7099] close(3) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7099] write(1, "executing program\n", 18executing program [pid 7098] <... write resumed>) = 18 ./strace-static-x86_64: Process 7100 attached [pid 7099] <... write resumed>) = 18 [pid 7099] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7100] set_robust_list(0x55556540f660, 24 [pid 7099] <... bpf resumed>) = 3 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7100 [pid 7099] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7100] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 7101 attached [pid 7100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7099] <... bpf resumed>) = 4 [pid 7098] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7101 [pid 7100] <... prctl resumed>) = 0 [pid 7098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7100] setpgid(0, 0) = 0 [pid 7101] set_robust_list(0x55556540f660, 24 [pid 7099] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7101] <... set_robust_list resumed>) = 0 [pid 7101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7101] <... prctl resumed>) = 0 [pid 7101] setpgid(0, 0) = 0 [pid 7101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7098] <... bpf resumed>) = 4 [pid 7101] <... openat resumed>) = 3 [pid 7101] write(3, "1000", 4 [pid 7100] <... openat resumed>) = 3 [pid 7098] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7101] <... write resumed>) = 4 [pid 7101] close(3) = 0 [pid 7101] write(1, "executing program\n", 18executing program ) = 18 [pid 7101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7100] write(3, "1000", 4) = 4 [pid 7100] close(3 [pid 7101] <... bpf resumed>) = 3 [pid 7100] <... close resumed>) = 0 [pid 7101] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 7100] write(1, "executing program\n", 18executing program [pid 7101] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7100] <... write resumed>) = 18 [pid 7099] <... bpf resumed>) = 5 [pid 7098] <... bpf resumed>) = 5 [pid 7097] <... bpf resumed>) = 5 [pid 7100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7099] exit_group(0 [pid 7101] <... bpf resumed>) = 5 [pid 7098] exit_group(0 [pid 7097] exit_group(0 [pid 7101] exit_group(0 [pid 7100] <... bpf resumed>) = 3 [pid 7099] <... exit_group resumed>) = ? [pid 7098] <... exit_group resumed>) = ? [pid 7097] <... exit_group resumed>) = ? [pid 7101] <... exit_group resumed>) = ? [pid 7100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7099] +++ exited with 0 +++ [pid 7098] +++ exited with 0 +++ [pid 7100] <... bpf resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7100] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7102 attached [pid 7102] set_robust_list(0x55556540f660, 24./strace-static-x86_64: Process 7103 attached ) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7102 [pid 7102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7103] set_robust_list(0x55556540f660, 24 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7103 [pid 7103] <... set_robust_list resumed>) = 0 [pid 7102] <... prctl resumed>) = 0 [pid 7101] +++ exited with 0 +++ [pid 7097] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7102] setpgid(0, 0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7102] <... setpgid resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7103] <... prctl resumed>) = 0 [pid 7102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 7104 attached [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7104 [pid 7104] set_robust_list(0x55556540f660, 24 [pid 7103] setpgid(0, 0 [pid 7102] <... openat resumed>) = 3 [pid 7100] <... bpf resumed>) = 5 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7104] <... set_robust_list resumed>) = 0 [pid 7103] <... setpgid resumed>) = 0 [pid 7102] write(3, "1000", 4 [pid 7103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7100] exit_group(0 [pid 7104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7102] <... write resumed>) = 4 [pid 7102] close(3 [pid 7104] <... prctl resumed>) = 0 [pid 7100] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7105 attached [pid 7102] <... close resumed>) = 0 executing program [pid 7102] write(1, "executing program\n", 18 [pid 7105] set_robust_list(0x55556540f660, 24 [pid 7102] <... write resumed>) = 18 [pid 7102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7105] <... set_robust_list resumed>) = 0 [pid 7104] setpgid(0, 0 [pid 7103] <... openat resumed>) = 3 [pid 7100] +++ exited with 0 +++ [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7105 [pid 7105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7104] <... setpgid resumed>) = 0 [pid 7103] write(3, "1000", 4 [pid 7102] <... bpf resumed>) = 3 [pid 7105] <... prctl resumed>) = 0 [pid 7104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7103] <... write resumed>) = 4 [pid 7105] setpgid(0, 0 [pid 7102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7105] <... setpgid resumed>) = 0 [pid 7104] <... openat resumed>) = 3 [pid 7103] close(3 [pid 7104] write(3, "1000", 4 [pid 7105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7103] <... close resumed>) = 0 [pid 7102] <... bpf resumed>) = 4 [pid 5842] <... restart_syscall resumed>) = 0 [pid 7105] <... openat resumed>) = 3 [pid 7104] <... write resumed>) = 4 [pid 7103] write(1, "executing program\n", 18 [pid 7102] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 7105] write(3, "1000", 4 [pid 7104] close(3 [pid 7103] <... write resumed>) = 18 [pid 7105] <... write resumed>) = 4 [pid 7104] <... close resumed>) = 0 [pid 7103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7102] <... bpf resumed>) = 5 [pid 7105] close(3 [pid 7104] write(1, "executing program\n", 18executing program [pid 7103] <... bpf resumed>) = 3 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7105] <... close resumed>) = 0 [pid 7104] <... write resumed>) = 18 [pid 7104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7106 attached [pid 7105] write(1, "executing program\n", 18executing program [pid 7104] <... bpf resumed>) = 3 [pid 7103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7102] exit_group(0 [pid 7106] set_robust_list(0x55556540f660, 24 [pid 7105] <... write resumed>) = 18 [pid 7104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7103] <... bpf resumed>) = 4 [pid 7106] <... set_robust_list resumed>) = 0 [pid 7105] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7102] <... exit_group resumed>) = ? [pid 7106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7105] <... bpf resumed>) = 3 [pid 7104] <... bpf resumed>) = 4 [pid 7106] setpgid(0, 0 [pid 7105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7106 [pid 7105] <... bpf resumed>) = 4 [pid 7104] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7103] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7104] <... bpf resumed>) = 5 [pid 7105] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7106] <... setpgid resumed>) = 0 [pid 7104] exit_group(0 [pid 7106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7104] <... exit_group resumed>) = ? [pid 7106] <... openat resumed>) = 3 [pid 7106] write(3, "1000", 4 [pid 7105] <... bpf resumed>) = 5 [pid 7106] <... write resumed>) = 4 [pid 7104] +++ exited with 0 +++ [pid 7103] <... bpf resumed>) = 5 [pid 7102] +++ exited with 0 +++ [pid 7106] close(3 [pid 7105] exit_group(0 [pid 7103] exit_group(0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7106] <... close resumed>) = 0 [pid 7105] <... exit_group resumed>) = ? executing program [pid 7106] write(1, "executing program\n", 18 [pid 7103] <... exit_group resumed>) = ? [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7106] <... write resumed>) = 18 [pid 7106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7105] +++ exited with 0 +++ [pid 7103] +++ exited with 0 +++ [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] <... restart_syscall resumed>) = 0 [pid 7106] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7107 attached [pid 7107] set_robust_list(0x55556540f660, 24 [pid 7106] <... bpf resumed>) = 4 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7107] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7107 [pid 7107] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 7108 attached [pid 7108] set_robust_list(0x55556540f660, 24 [pid 7107] <... prctl resumed>) = 0 [pid 7106] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 7109 attached [pid 7108] <... set_robust_list resumed>) = 0 [pid 7107] setpgid(0, 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7109 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7108 [pid 7109] set_robust_list(0x55556540f660, 24 [pid 7108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7107] <... setpgid resumed>) = 0 [pid 7106] <... bpf resumed>) = 5 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7109] <... set_robust_list resumed>) = 0 [pid 7106] exit_group(0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7108] <... prctl resumed>) = 0 [pid 7107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7106] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7110 attached [pid 7109] <... prctl resumed>) = 0 [pid 7108] setpgid(0, 0 [pid 7107] <... openat resumed>) = 3 [pid 7106] +++ exited with 0 +++ [pid 7108] <... setpgid resumed>) = 0 [pid 7107] write(3, "1000", 4 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7110] set_robust_list(0x55556540f660, 24 [pid 7107] <... write resumed>) = 4 [pid 7109] setpgid(0, 0 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7110 [pid 7110] <... set_robust_list resumed>) = 0 [pid 7109] <... setpgid resumed>) = 0 [pid 7108] <... openat resumed>) = 3 [pid 7107] close(3 [pid 5842] <... restart_syscall resumed>) = 0 [pid 7107] <... close resumed>) = 0 [pid 7108] write(3, "1000", 4 [pid 7110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7108] <... write resumed>) = 4 [pid 7107] write(1, "executing program\n", 18 [pid 7108] close(3) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 7110] <... prctl resumed>) = 0 [pid 7107] <... write resumed>) = 18 [pid 7109] <... openat resumed>) = 3 [pid 7108] write(1, "executing program\n", 18 [pid 7107] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7111 attached executing program [pid 7110] setpgid(0, 0 [pid 7109] write(3, "1000", 4 [pid 7108] <... write resumed>) = 18 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7111 [pid 7108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7111] set_robust_list(0x55556540f660, 24 [pid 7110] <... setpgid resumed>) = 0 [pid 7109] <... write resumed>) = 4 [pid 7108] <... bpf resumed>) = 3 [pid 7107] <... bpf resumed>) = 3 [pid 7111] <... set_robust_list resumed>) = 0 executing program [pid 7108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7109] close(3 [pid 7108] <... bpf resumed>) = 4 [pid 7107] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7111] <... prctl resumed>) = 0 [pid 7110] <... openat resumed>) = 3 [pid 7109] <... close resumed>) = 0 [pid 7108] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7111] setpgid(0, 0 [pid 7109] write(1, "executing program\n", 18 [pid 7111] <... setpgid resumed>) = 0 [pid 7110] write(3, "1000", 4 [pid 7109] <... write resumed>) = 18 [pid 7111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7110] <... write resumed>) = 4 [pid 7109] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7108] <... bpf resumed>) = 5 [pid 7108] exit_group(0 [pid 7111] <... openat resumed>) = 3 [pid 7110] close(3executing program [pid 7109] <... bpf resumed>) = 3 [pid 7107] <... bpf resumed>) = 4 [pid 7110] <... close resumed>) = 0 [pid 7111] write(3, "1000", 4 [pid 7110] write(1, "executing program\n", 18 [pid 7109] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7108] <... exit_group resumed>) = ? [pid 7107] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7111] <... write resumed>) = 4 [pid 7110] <... write resumed>) = 18 [pid 7109] <... bpf resumed>) = 4 [pid 7108] +++ exited with 0 +++ [pid 7110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7111] close(3 [pid 7109] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 7111] <... close resumed>) = 0 [pid 7110] <... bpf resumed>) = 3 [pid 7111] write(1, "executing program\n", 18) = 18 [pid 7111] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7111] <... bpf resumed>) = 3 [pid 7111] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7110] <... bpf resumed>) = 4 [pid 7111] <... bpf resumed>) = 4 [pid 7110] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7111] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7112 attached [pid 7111] <... bpf resumed>) = 5 [pid 7110] <... bpf resumed>) = 5 [pid 7109] <... bpf resumed>) = 5 [pid 7107] <... bpf resumed>) = 5 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7112 [pid 7109] exit_group(0 [pid 7112] set_robust_list(0x55556540f660, 24 [pid 7111] exit_group(0 [pid 7110] exit_group(0 [pid 7107] exit_group(0 [pid 7112] <... set_robust_list resumed>) = 0 [pid 7111] <... exit_group resumed>) = ? [pid 7110] <... exit_group resumed>) = ? [pid 7109] <... exit_group resumed>) = ? [pid 7107] <... exit_group resumed>) = ? [pid 7112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7109] +++ exited with 0 +++ [pid 7107] +++ exited with 0 +++ [pid 7112] <... prctl resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7112] setpgid(0, 0 [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...> [pid 7112] <... setpgid resumed>) = 0 [pid 7112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5849] <... restart_syscall resumed>) = 0 [pid 5845] <... restart_syscall resumed>) = 0 [pid 7112] <... openat resumed>) = 3 [pid 7112] write(3, "1000", 4 executing program [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7112] <... write resumed>) = 4 [pid 7112] close(3) = 0 [pid 7112] write(1, "executing program\n", 18) = 18 [pid 7112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7114 attached ./strace-static-x86_64: Process 7113 attached ) = 3 [pid 7111] +++ exited with 0 +++ [pid 7110] +++ exited with 0 +++ [pid 7114] set_robust_list(0x55556540f660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7113 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7114] <... set_robust_list resumed>) = 0 [pid 7112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7114 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7111, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 7114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7113] set_robust_list(0x55556540f660, 24 [pid 7112] <... bpf resumed>) = 4 [pid 7113] <... set_robust_list resumed>) = 0 [pid 7114] <... prctl resumed>) = 0 [pid 7113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7114] setpgid(0, 0 [pid 7113] <... prctl resumed>) = 0 [pid 7114] <... setpgid resumed>) = 0 [pid 7112] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7115 attached ./strace-static-x86_64: Process 7116 attached [pid 7114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7113] setpgid(0, 0 [pid 7114] <... openat resumed>) = 3 [pid 7114] write(3, "1000", 4 [pid 7115] set_robust_list(0x55556540f660, 24 [pid 7114] <... write resumed>) = 4 [pid 7113] <... setpgid resumed>) = 0 [pid 7116] set_robust_list(0x55556540f660, 24 [pid 7115] <... set_robust_list resumed>) = 0 [pid 7114] close(3) = 0 [pid 7116] <... set_robust_list resumed>) = 0 [pid 7114] write(1, "executing program\n", 18 [pid 7113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7114] <... write resumed>) = 18 executing program [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7115 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7116 [pid 7116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7116] <... prctl resumed>) = 0 [pid 7115] <... prctl resumed>) = 0 [pid 7114] <... bpf resumed>) = 3 [pid 7113] <... openat resumed>) = 3 [pid 7115] setpgid(0, 0 [pid 7114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7116] setpgid(0, 0 [pid 7115] <... setpgid resumed>) = 0 [pid 7113] write(3, "1000", 4 [pid 7112] <... bpf resumed>) = 5 [pid 7116] <... setpgid resumed>) = 0 [pid 7115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7114] <... bpf resumed>) = 4 [pid 7113] <... write resumed>) = 4 [pid 7112] exit_group(0 [pid 7116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7113] close(3) = 0 executing program [pid 7112] <... exit_group resumed>) = ? [pid 7113] write(1, "executing program\n", 18 [pid 7114] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7113] <... write resumed>) = 18 [pid 7116] <... openat resumed>) = 3 [pid 7115] <... openat resumed>) = 3 [pid 7114] <... bpf resumed>) = 5 [pid 7113] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7116] write(3, "1000", 4 [pid 7115] write(3, "1000", 4 [pid 7116] <... write resumed>) = 4 [pid 7115] <... write resumed>) = 4 [pid 7116] close(3 [pid 7115] close(3 [pid 7114] exit_group(0) = ? [pid 7113] <... bpf resumed>) = 3 [pid 7115] <... close resumed>) = 0 [pid 7116] <... close resumed>) = 0 [pid 7113] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 executing program executing program [pid 7116] write(1, "executing program\n", 18 [pid 7115] write(1, "executing program\n", 18 [pid 7116] <... write resumed>) = 18 [pid 7115] <... write resumed>) = 18 [pid 7116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7115] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7113] <... bpf resumed>) = 4 [pid 7115] <... bpf resumed>) = 3 [pid 7116] <... bpf resumed>) = 3 [pid 7115] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7113] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7115] <... bpf resumed>) = 4 [pid 7116] <... bpf resumed>) = 4 [pid 7116] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7115] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7114] +++ exited with 0 +++ [pid 7112] +++ exited with 0 +++ [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5845] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7115] <... bpf resumed>) = 5 [pid 7113] <... bpf resumed>) = 5 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7117 attached [pid 7116] <... bpf resumed>) = 5 [pid 7113] exit_group(0./strace-static-x86_64: Process 7118 attached [pid 7117] set_robust_list(0x55556540f660, 24 [pid 7116] exit_group(0 [pid 7115] exit_group(0 [pid 7113] <... exit_group resumed>) = ? [pid 7118] set_robust_list(0x55556540f660, 24 [pid 7117] <... set_robust_list resumed>) = 0 [pid 7116] <... exit_group resumed>) = ? [pid 7118] <... set_robust_list resumed>) = 0 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7117 [pid 7115] <... exit_group resumed>) = ? [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7118 [pid 7118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7116] +++ exited with 0 +++ [pid 7115] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7115, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7118] <... prctl resumed>) = 0 [pid 7117] <... prctl resumed>) = 0 [pid 7113] +++ exited with 0 +++ [pid 5847] <... restart_syscall resumed>) = 0 [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7116, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7118] setpgid(0, 0 [pid 7117] setpgid(0, 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] restart_syscall(<... resuming interrupted clone ...> [pid 7118] <... setpgid resumed>) = 0 [pid 7117] <... setpgid resumed>) = 0 [pid 5842] <... restart_syscall resumed>) = 0 [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 7119 attached [pid 7119] set_robust_list(0x55556540f660, 24 [pid 7118] <... openat resumed>) = 3 [pid 7117] <... openat resumed>) = 3 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7119 [pid 7119] <... set_robust_list resumed>) = 0 [pid 7117] write(3, "1000", 4executing program [pid 7119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7117] <... write resumed>) = 4 [pid 7119] <... prctl resumed>) = 0 [pid 7117] close(3 [pid 7119] setpgid(0, 0 [pid 7117] <... close resumed>) = 0 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7119] <... setpgid resumed>) = 0 [pid 7117] write(1, "executing program\n", 18 [pid 7119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7118] write(3, "1000", 4 [pid 7117] <... write resumed>) = 18 ./strace-static-x86_64: Process 7120 attached [pid 7117] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 7121 attached [pid 7120] set_robust_list(0x55556540f660, 24 [pid 7119] <... openat resumed>) = 3 [pid 7118] <... write resumed>) = 4 [pid 7117] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7120 [pid 7120] <... set_robust_list resumed>) = 0 [pid 7118] close(3 [pid 7121] set_robust_list(0x55556540f660, 24) = 0 [pid 7120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7119] write(3, "1000", 4 [pid 7118] <... close resumed>) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7121 [pid 7121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7118] write(1, "executing program\n", 18executing program [pid 7117] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7121] <... prctl resumed>) = 0 [pid 7120] <... prctl resumed>) = 0 [pid 7119] <... write resumed>) = 4 [pid 7118] <... write resumed>) = 18 [pid 7121] setpgid(0, 0 [pid 7118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7121] <... setpgid resumed>) = 0 [pid 7120] setpgid(0, 0 [pid 7119] close(3) = 0 [pid 7121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 7120] <... setpgid resumed>) = 0 [pid 7119] write(1, "executing program\n", 18 [pid 7118] <... bpf resumed>) = 3 [pid 7120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7121] <... openat resumed>) = 3 [pid 7119] <... write resumed>) = 18 [pid 7118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7117] <... bpf resumed>) = 4 [pid 7120] <... openat resumed>) = 3 [pid 7119] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7117] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7121] write(3, "1000", 4 [pid 7120] write(3, "1000", 4 [pid 7119] <... bpf resumed>) = 3 [pid 7118] <... bpf resumed>) = 4 [pid 7117] <... bpf resumed>) = 5 [pid 7121] <... write resumed>) = 4 [pid 7120] <... write resumed>) = 4 [pid 7118] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7117] exit_group(0 [pid 7121] close(3 [pid 7120] close(3 [pid 7119] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7120] <... close resumed>) = 0 [pid 7117] <... exit_group resumed>) = ? [pid 7121] <... close resumed>) = 0 [pid 7120] write(1, "executing program\n", 18executing program [pid 7119] <... bpf resumed>) = 4 [pid 7118] <... bpf resumed>) = 5 executing program [pid 7121] write(1, "executing program\n", 18 [pid 7120] <... write resumed>) = 18 [pid 7119] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7121] <... write resumed>) = 18 [pid 7120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7118] exit_group(0 [pid 7117] +++ exited with 0 +++ [pid 7120] <... bpf resumed>) = 3 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7117, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7121] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7119] <... bpf resumed>) = 5 [pid 7118] <... exit_group resumed>) = ? [pid 7121] <... bpf resumed>) = 3 [pid 7120] <... bpf resumed>) = 4 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7119] exit_group(0 [pid 7121] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7122 attached ) = 4 [pid 7119] <... exit_group resumed>) = ? [pid 7122] set_robust_list(0x55556540f660, 24 [pid 7120] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7122] <... set_robust_list resumed>) = 0 [pid 7121] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7122 [pid 7122] <... prctl resumed>) = 0 [pid 7122] setpgid(0, 0) = 0 [pid 7122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7122] write(3, "1000", 4) = 4 [pid 7122] close(3) = 0 executing program [pid 7122] write(1, "executing program\n", 18) = 18 [pid 7122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 7122] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7119] +++ exited with 0 +++ [pid 7118] +++ exited with 0 +++ [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7123 attached [pid 7123] set_robust_list(0x55556540f660, 24 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7123 [pid 7123] <... set_robust_list resumed>) = 0 [pid 7122] <... bpf resumed>) = 5 [pid 7121] <... bpf resumed>) = 5 [pid 7120] <... bpf resumed>) = 5 [pid 7122] exit_group(0 [pid 7120] exit_group(0 [pid 7122] <... exit_group resumed>) = ? [pid 7120] <... exit_group resumed>) = ? [pid 7123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7121] exit_group(0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7123] <... prctl resumed>) = 0 [pid 7122] +++ exited with 0 +++ [pid 7121] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 7124 attached [pid 7123] setpgid(0, 0 [pid 7124] set_robust_list(0x55556540f660, 24 [pid 7123] <... setpgid resumed>) = 0 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7124 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7124] <... set_robust_list resumed>) = 0 [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 7124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] <... restart_syscall resumed>) = 0 [pid 7124] <... prctl resumed>) = 0 [pid 7124] setpgid(0, 0 [pid 7123] <... openat resumed>) = 3 [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7124] <... setpgid resumed>) = 0 [pid 7123] write(3, "1000", 4./strace-static-x86_64: Process 7125 attached ) = 4 [pid 7123] close(3 [pid 7124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7125] set_robust_list(0x55556540f660, 24 [pid 7123] <... close resumed>) = 0 [pid 7123] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7125 [pid 7123] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7125] <... set_robust_list resumed>) = 0 [pid 7123] <... bpf resumed>) = 3 [pid 7123] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7124] <... openat resumed>) = 3 [pid 7123] <... bpf resumed>) = 4 [pid 7125] setpgid(0, 0 [pid 7124] write(3, "1000", 4 [pid 7125] <... setpgid resumed>) = 0 [pid 7124] <... write resumed>) = 4 [pid 7125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7123] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7121] +++ exited with 0 +++ [pid 7124] close(3 [pid 7120] +++ exited with 0 +++ [pid 7124] <... close resumed>) = 0 [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7120, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7121, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7124] write(1, "executing program\n", 18executing program [pid 7125] <... openat resumed>) = 3 [pid 7124] <... write resumed>) = 18 [pid 7125] write(3, "1000", 4 [pid 7124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7125] <... write resumed>) = 4 [pid 7124] <... bpf resumed>) = 3 [pid 7124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 7126 attached [pid 7125] close(3 [pid 7123] <... bpf resumed>) = 5 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7127 attached [pid 7126] set_robust_list(0x55556540f660, 24 [pid 7125] <... close resumed>) = 0 [pid 7124] <... bpf resumed>) = 4 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7126 [pid 7126] <... set_robust_list resumed>) = 0 [pid 7125] write(1, "executing program\n", 18 [pid 7123] exit_group(0 [pid 7127] set_robust_list(0x55556540f660, 24) = 0 executing program [pid 7127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7125] <... write resumed>) = 18 [pid 7127] <... prctl resumed>) = 0 [pid 7127] setpgid(0, 0 [pid 7125] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7123] <... exit_group resumed>) = ? [pid 7127] <... setpgid resumed>) = 0 [pid 7126] <... prctl resumed>) = 0 [pid 7125] <... bpf resumed>) = 3 [pid 7124] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7123] +++ exited with 0 +++ [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7127 [pid 7126] setpgid(0, 0 [pid 7125] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7123, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 7127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7126] <... setpgid resumed>) = 0 [pid 7125] <... bpf resumed>) = 4 [pid 5847] restart_syscall(<... resuming interrupted clone ...> [pid 7127] <... openat resumed>) = 3 [pid 7126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7127] write(3, "1000", 4 [pid 7125] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5847] <... restart_syscall resumed>) = 0 [pid 7127] <... write resumed>) = 4 [pid 7126] write(3, "1000", 4 [pid 7127] close(3 [pid 7126] <... write resumed>) = 4 [pid 7127] <... close resumed>) = 0 [pid 7126] close(3 [pid 7127] write(1, "executing program\n", 18 [pid 7126] <... close resumed>) = 0 executing program [pid 7127] <... write resumed>) = 18 [pid 7126] write(1, "executing program\n", 18executing program [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7127] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7126] <... write resumed>) = 18 ./strace-static-x86_64: Process 7128 attached [pid 7127] <... bpf resumed>) = 3 [pid 7126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7128] set_robust_list(0x55556540f660, 24) = 0 [pid 7127] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7126] <... bpf resumed>) = 3 [pid 5847] <... clone resumed>, child_tidptr=0x55556540f650) = 7128 [pid 7128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7127] <... bpf resumed>) = 4 [pid 7126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7128] <... prctl resumed>) = 0 [pid 7127] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7126] <... bpf resumed>) = 4 [pid 7125] <... bpf resumed>) = 5 [pid 7124] <... bpf resumed>) = 5 [pid 7128] setpgid(0, 0 [pid 7127] <... bpf resumed>) = 5 [pid 7127] exit_group(0 [pid 7128] <... setpgid resumed>) = 0 [pid 7127] <... exit_group resumed>) = ? [pid 7126] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7125] exit_group(0 [pid 7124] exit_group(0 [pid 7128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7127] +++ exited with 0 +++ [pid 7126] <... bpf resumed>) = 5 [pid 7125] <... exit_group resumed>) = ? [pid 7124] <... exit_group resumed>) = ? [pid 7128] <... openat resumed>) = 3 [pid 7126] exit_group(0 [pid 7125] +++ exited with 0 +++ [pid 7128] write(3, "1000", 4 [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7125, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7128] <... write resumed>) = 4 [pid 7126] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7127, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7128] close(3executing program ) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7128] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 7129 attached [pid 7128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7129] set_robust_list(0x55556540f660, 24 [pid 7128] <... bpf resumed>) = 3 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7129 [pid 7129] <... set_robust_list resumed>) = 0 [pid 7128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7124] +++ exited with 0 +++ [pid 7129] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7126] +++ exited with 0 +++ [pid 7129] <... prctl resumed>) = 0 [pid 7128] <... bpf resumed>) = 4 [pid 5845] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5842] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7129] setpgid(0, 0) = 0 [pid 5845] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7130 attached [pid 7128] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 7131 attached ./strace-static-x86_64: Process 7132 attached [pid 7130] set_robust_list(0x55556540f660, 24 [pid 7129] <... openat resumed>) = 3 [pid 7130] <... set_robust_list resumed>) = 0 [pid 7130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7132] set_robust_list(0x55556540f660, 24 [pid 7131] set_robust_list(0x55556540f660, 24 [pid 7130] <... prctl resumed>) = 0 [pid 7129] write(3, "1000", 4 [pid 5845] <... clone resumed>, child_tidptr=0x55556540f650) = 7131 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7130 [pid 5842] <... clone resumed>, child_tidptr=0x55556540f650) = 7132 [pid 7132] <... set_robust_list resumed>) = 0 [pid 7131] <... set_robust_list resumed>) = 0 [pid 7130] setpgid(0, 0 [pid 7129] <... write resumed>) = 4 [pid 7130] <... setpgid resumed>) = 0 [pid 7129] close(3 [pid 7131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7131] <... prctl resumed>) = 0 [pid 7130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7129] <... close resumed>) = 0 [pid 7132] <... prctl resumed>) = 0 executing program [pid 7131] setpgid(0, 0 [pid 7132] setpgid(0, 0) = 0 [pid 7131] <... setpgid resumed>) = 0 [pid 7130] <... openat resumed>) = 3 [pid 7129] write(1, "executing program\n", 18) = 18 [pid 7131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7129] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7131] <... openat resumed>) = 3 [pid 7130] write(3, "1000", 4 [pid 7129] <... bpf resumed>) = 3 [pid 7128] <... bpf resumed>) = 5 [pid 7130] <... write resumed>) = 4 [pid 7130] close(3) = 0 executing program [pid 7130] write(1, "executing program\n", 18 [pid 7129] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7132] write(3, "1000", 4 [pid 7131] write(3, "1000", 4 [pid 7130] <... write resumed>) = 18 [pid 7129] <... bpf resumed>) = 4 [pid 7128] exit_group(0 [pid 7132] <... write resumed>) = 4 [pid 7131] <... write resumed>) = 4 [pid 7130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7132] close(3 [pid 7131] close(3 [pid 7128] <... exit_group resumed>) = ? [pid 7132] <... close resumed>) = 0 [pid 7131] <... close resumed>) = 0 [pid 7130] <... bpf resumed>) = 3 [pid 7129] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 7132] write(1, "executing program\n", 18 [pid 7131] write(1, "executing program\n", 18 executing program [pid 7130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7129] <... bpf resumed>) = 5 [pid 7131] <... write resumed>) = 18 [pid 7132] <... write resumed>) = 18 [pid 7131] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7130] <... bpf resumed>) = 4 [pid 7129] exit_group(0 [pid 7132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 7131] <... bpf resumed>) = 3 [pid 7130] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7129] <... exit_group resumed>) = ? [pid 7132] <... bpf resumed>) = 3 [pid 7131] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7131] <... bpf resumed>) = 4 [pid 7131] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7132] <... bpf resumed>) = 4 [pid 7130] <... bpf resumed>) = 5 [pid 7128] +++ exited with 0 +++ [pid 7132] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7130] exit_group(0 [pid 5847] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7130] <... exit_group resumed>) = ? [pid 5847] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7133 attached , child_tidptr=0x55556540f650) = 7133 [pid 7133] set_robust_list(0x55556540f660, 24) = 0 [pid 7133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7133] setpgid(0, 0) = 0 [pid 7133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7133] write(3, "1000", 4) = 4 [pid 7133] close(3) = 0 executing program [pid 7133] write(1, "executing program\n", 18) = 18 [pid 7133] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 7133] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 7131] <... bpf resumed>) = 5 [pid 7132] <... bpf resumed>) = 5 [pid 7129] +++ exited with 0 +++ [pid 7130] +++ exited with 0 +++ [pid 7131] exit_group(0 [pid 7133] <... bpf resumed>) = 4 [pid 7132] exit_group(0 [pid 7131] <... exit_group resumed>) = ? [pid 5844] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 7133] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 7132] <... exit_group resumed>) = ? [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7129, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5849] restart_syscall(<... resuming interrupted clone ...> [pid 5844] restart_syscall(<... resuming interrupted clone ...> [pid 5849] <... restart_syscall resumed>) = 0 [pid 5844] <... restart_syscall resumed>) = 0 [pid 5849] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7134 attached ./strace-static-x86_64: Process 7135 attached [pid 7135] set_robust_list(0x55556540f660, 24 [pid 7134] set_robust_list(0x55556540f660, 24 [pid 7135] <... set_robust_list resumed>) = 0 [pid 7135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7134] <... set_robust_list resumed>) = 0 [pid 5849] <... clone resumed>, child_tidptr=0x55556540f650) = 7134 [pid 5844] <... clone resumed>, child_tidptr=0x55556540f650) = 7135 [pid 7135] <... prctl resumed>) = 0 [pid 7134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7135] setpgid(0, 0 [pid 7134] <... prctl resumed>) = 0 [pid 7135] <... setpgid resumed>) = 0 [pid 7134] setpgid(0, 0 [pid 7135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7134] <... setpgid resumed>) = 0 [pid 7132] +++ exited with 0 +++ [pid 7131] +++ exited with 0 +++ [pid 7135] <... openat resumed>) = 3 [pid 7134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7135] write(3, "1000", 4) = 4 [pid 7134] <... openat resumed>) = 3