./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2272226255 <...> Warning: Permanently added '10.128.0.251' (ED25519) to the list of known hosts. execve("./syz-executor2272226255", ["./syz-executor2272226255"], 0x7ffce728b950 /* 10 vars */) = 0 brk(NULL) = 0x555568f86000 brk(0x555568f86d00) = 0x555568f86d00 arch_prctl(ARCH_SET_FS, 0x555568f86380) = 0 set_tid_address(0x555568f86650) = 5227 set_robust_list(0x555568f86660, 24) = 0 rseq(0x555568f86ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2272226255", 4096) = 28 getrandom("\x63\x7d\x0e\xe9\x67\x12\x0f\xb0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568f86d00 brk(0x555568fa7d00) = 0x555568fa7d00 brk(0x555568fa8000) = 0x555568fa8000 mprotect(0x7f621f0aa000, 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 5228 attached [pid 5228] set_robust_list(0x555568f86660, 24 [pid 5227] <... clone resumed>, child_tidptr=0x555568f86650) = 5228 [pid 5228] <... set_robust_list resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5227] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5230 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5229 [pid 5230] set_robust_list(0x555568f86660, 24 [pid 5229] <... set_robust_list resumed>) = 0 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5229] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5231 attached [pid 5227] <... clone resumed>, child_tidptr=0x555568f86650) = 5230 [pid 5229] setpgid(0, 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5231 [pid 5227] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5231] set_robust_list(0x555568f86660, 24 [pid 5229] <... setpgid resumed>) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5231] <... set_robust_list resumed>) = 0 [pid 5229] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5232 attached [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] set_robust_list(0x555568f86660, 24 [pid 5231] <... prctl resumed>) = 0 [pid 5229] write(3, "1000", 4 [pid 5227] <... clone resumed>, child_tidptr=0x555568f86650) = 5232 [pid 5232] <... set_robust_list resumed>) = 0 [pid 5231] setpgid(0, 0 [pid 5229] <... write resumed>) = 4 [pid 5227] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5231] <... setpgid resumed>) = 0 [pid 5229] close(3) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5234 attached [pid 5231] <... openat resumed>) = 3 [pid 5229] <... write resumed>) = 18 ./strace-static-x86_64: Process 5233 attached [pid 5229] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] set_robust_list(0x555568f86660, 24 [pid 5227] <... clone resumed>, child_tidptr=0x555568f86650) = 5233 [pid 5234] set_robust_list(0x555568f86660, 24 [pid 5233] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5234 [pid 5231] write(3, "1000", 4 [pid 5229] <... bpf resumed>) = 3 [pid 5227] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] <... set_robust_list resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5229] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5231] <... write resumed>) = 4 [pid 5229] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5235 attached [pid 5235] set_robust_list(0x555568f86660, 24) = 0 [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5235] setpgid(0, 0) = 0 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5229] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5236 attached [pid 5235] <... openat resumed>) = 3 [pid 5234] <... prctl resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5235 [pid 5231] close(3 [pid 5229] <... bpf resumed>) = 5 [pid 5227] <... clone resumed>, child_tidptr=0x555568f86650) = 5236 [pid 5236] set_robust_list(0x555568f86660, 24 [pid 5234] setpgid(0, 0 [pid 5231] <... close resumed>) = 0 [pid 5234] <... setpgid resumed>) = 0 [pid 5235] write(3, "1000", 4 [pid 5229] exit_group(0 [pid 5235] <... write resumed>) = 4 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5231] write(1, "executing program\n", 18 [pid 5229] <... exit_group resumed>) = ? [pid 5236] <... set_robust_list resumed>) = 0 [pid 5235] close(3 [pid 5234] <... openat resumed>) = 3 [pid 5231] <... write resumed>) = 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] <... close resumed>) = 0 executing program [pid 5235] write(1, "executing program\n", 18 [pid 5234] write(3, "1000", 4 [pid 5231] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5229] +++ exited with 0 +++ ./strace-static-x86_64: Process 5237 attached [pid 5235] <... write resumed>) = 18 [pid 5234] <... write resumed>) = 4 [pid 5237] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5237 [pid 5235] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5231] <... bpf resumed>) = 3 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5234] close(3 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5235] <... bpf resumed>) = 3 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5234] <... close resumed>) = 0 [pid 5231] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5237] <... prctl resumed>) = 0 [pid 5235] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5234] write(1, "executing program\n", 18executing program [pid 5237] setpgid(0, 0 [pid 5234] <... write resumed>) = 18 [pid 5231] <... bpf resumed>) = 4 [pid 5237] <... setpgid resumed>) = 0 [pid 5235] <... bpf resumed>) = 4 [pid 5234] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5235] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5231] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5234] <... bpf resumed>) = 3 [pid 5237] <... openat resumed>) = 3 [pid 5235] <... bpf resumed>) = 5 [pid 5231] <... bpf resumed>) = 5 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5237] write(3, "1000", 4 [pid 5235] exit_group(0 [pid 5234] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5231] exit_group(0 [pid 5237] <... write resumed>) = 4 executing program [pid 5235] <... exit_group resumed>) = ? [pid 5237] close(3 [pid 5234] <... bpf resumed>) = 4 [pid 5231] <... exit_group resumed>) = ? [pid 5237] <... close resumed>) = 0 [pid 5237] write(1, "executing program\n", 18) = 18 [pid 5235] +++ exited with 0 +++ [pid 5237] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5234] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] <... bpf resumed>) = 3 [pid 5231] +++ exited with 0 +++ [pid 5237] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5238 attached [pid 5237] <... bpf resumed>) = 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5238] set_robust_list(0x555568f86660, 24) = 0 [pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5238] setpgid(0, 0 [pid 5237] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5238] <... setpgid resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5238 [pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5234] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] <... openat resumed>) = 3 [pid 5237] <... bpf resumed>) = 5 [pid 5238] write(3, "1000", 4./strace-static-x86_64: Process 5239 attached [pid 5237] exit_group(0 [pid 5234] exit_group(0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] set_robust_list(0x555568f86660, 24 [pid 5238] <... write resumed>) = 4 [pid 5237] <... exit_group resumed>) = ? [pid 5234] <... exit_group resumed>) = ? [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5239 [pid 5238] close(3./strace-static-x86_64: Process 5240 attached [pid 5239] <... set_robust_list resumed>) = 0 [pid 5238] <... close resumed>) = 0 [pid 5237] +++ exited with 0 +++ [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5240] set_robust_list(0x555568f86660, 24 [pid 5238] write(1, "executing program\n", 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5234] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5240 executing program [pid 5240] <... set_robust_list resumed>) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] <... write resumed>) = 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5238] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] <... openat resumed>) = 3 [pid 5238] <... bpf resumed>) = 3 [pid 5239] write(3, "1000", 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] <... write resumed>) = 4 [pid 5239] close(3 [pid 5238] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5240] <... prctl resumed>) = 0 executing program ./strace-static-x86_64: Process 5241 attached [pid 5240] setpgid(0, 0 [pid 5239] <... close resumed>) = 0 [pid 5239] write(1, "executing program\n", 18) = 18 [pid 5239] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5240] <... setpgid resumed>) = 0 [pid 5241] set_robust_list(0x555568f86660, 24 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] <... set_robust_list resumed>) = 0 [pid 5239] <... bpf resumed>) = 3 [pid 5238] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5241 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5241] setpgid(0, 0 [pid 5239] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5241] <... setpgid resumed>) = 0 [pid 5240] <... openat resumed>) = 3 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5240] write(3, "1000", 4 [pid 5239] <... bpf resumed>) = 4 [pid 5238] <... bpf resumed>) = 5 [pid 5239] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5241] write(3, "1000", 4 [pid 5240] <... write resumed>) = 4 [pid 5239] <... bpf resumed>) = 5 [pid 5238] exit_group(0 [pid 5241] <... write resumed>) = 4 [pid 5240] close(3 [pid 5241] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] <... exit_group resumed>) = ? [pid 5240] <... close resumed>) = 0 [pid 5241] <... close resumed>) = 0 [pid 5239] exit_group(0) = ? ./strace-static-x86_64: Process 5242 attached executing program [pid 5241] write(1, "executing program\n", 18executing program [pid 5240] write(1, "executing program\n", 18 [pid 5242] set_robust_list(0x555568f86660, 24 [pid 5241] <... write resumed>) = 18 [pid 5240] <... write resumed>) = 18 [pid 5242] <... set_robust_list resumed>) = 0 [pid 5241] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5240] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5242 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5241] <... bpf resumed>) = 3 [pid 5240] <... bpf resumed>) = 3 [pid 5242] <... prctl resumed>) = 0 [pid 5241] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5242] setpgid(0, 0 [pid 5240] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5241] <... bpf resumed>) = 4 [pid 5242] <... setpgid resumed>) = 0 [pid 5241] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5240] <... bpf resumed>) = 4 [pid 5242] <... openat resumed>) = 3 [pid 5240] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5239] +++ exited with 0 +++ [pid 5238] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5242] write(3, "1000", 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5242] <... write resumed>) = 4 [pid 5242] close(3 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5242] <... close resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5242] write(1, "executing program\n", 18./strace-static-x86_64: Process 5243 attached executing program [pid 5243] set_robust_list(0x555568f86660, 24) = 0 ./strace-static-x86_64: Process 5244 attached [pid 5242] <... write resumed>) = 18 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5243 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5244] set_robust_list(0x555568f86660, 24 [pid 5243] setpgid(0, 0 [pid 5242] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5244 [pid 5244] <... set_robust_list resumed>) = 0 [pid 5243] <... setpgid resumed>) = 0 [pid 5242] <... bpf resumed>) = 3 [pid 5242] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5241] <... bpf resumed>) = 5 [pid 5244] <... prctl resumed>) = 0 [pid 5244] setpgid(0, 0 [pid 5242] <... bpf resumed>) = 4 [pid 5244] <... setpgid resumed>) = 0 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] <... openat resumed>) = 3 [pid 5241] exit_group(0 [pid 5240] <... bpf resumed>) = 5 [pid 5242] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5241] <... exit_group resumed>) = ? [pid 5244] <... openat resumed>) = 3 [pid 5240] exit_group(0 [pid 5243] write(3, "1000", 4 [pid 5242] <... bpf resumed>) = 5 [pid 5241] +++ exited with 0 +++ [pid 5244] write(3, "1000", 4 [pid 5243] <... write resumed>) = 4 [pid 5242] exit_group(0 [pid 5240] <... exit_group resumed>) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5244] <... write resumed>) = 4 [pid 5243] close(3 [pid 5242] <... exit_group resumed>) = ? executing program [pid 5244] close(3 [pid 5243] <... close resumed>) = 0 [pid 5243] write(1, "executing program\n", 18 [pid 5244] <... close resumed>) = 0 [pid 5243] <... write resumed>) = 18 [pid 5243] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5240] +++ exited with 0 +++ executing program [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5244] write(1, "executing program\n", 18 [pid 5243] <... bpf resumed>) = 3 [pid 5242] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5244] <... write resumed>) = 18 [pid 5243] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5245 attached [pid 5244] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5243] <... bpf resumed>) = 4 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5245] set_robust_list(0x555568f86660, 24 [pid 5244] <... bpf resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5245 [pid 5244] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5243] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5245] <... set_robust_list resumed>) = 0 [pid 5244] <... bpf resumed>) = 4 [pid 5244] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] setpgid(0, 0) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5243] <... bpf resumed>) = 5 executing program [pid 5245] write(1, "executing program\n", 18 [pid 5244] <... bpf resumed>) = 5 [pid 5245] <... write resumed>) = 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5245] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5244] exit_group(0 [pid 5243] exit_group(0 [pid 5245] <... bpf resumed>) = 3 [pid 5244] <... exit_group resumed>) = ? [pid 5243] <... exit_group resumed>) = ? [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5246 attached [pid 5244] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5246 ./strace-static-x86_64: Process 5247 attached [pid 5246] set_robust_list(0x555568f86660, 24 [pid 5245] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5243] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5247] set_robust_list(0x555568f86660, 24 [pid 5246] <... set_robust_list resumed>) = 0 [pid 5245] <... bpf resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] <... set_robust_list resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5247 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5246] <... prctl resumed>) = 0 [pid 5245] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5247] <... prctl resumed>) = 0 [pid 5246] setpgid(0, 0 [pid 5247] setpgid(0, 0 [pid 5246] <... setpgid resumed>) = 0 [pid 5247] <... setpgid resumed>) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached ./strace-static-x86_64: Process 5248 attached [pid 5247] <... openat resumed>) = 3 [pid 5246] <... openat resumed>) = 3 [pid 5245] <... bpf resumed>) = 5 [pid 5248] set_robust_list(0x555568f86660, 24 [pid 5249] set_robust_list(0x555568f86660, 24 [pid 5246] write(3, "1000", 4 [pid 5247] write(3, "1000", 4 [pid 5246] <... write resumed>) = 4 [pid 5249] <... set_robust_list resumed>) = 0 [pid 5248] <... set_robust_list resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5249 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] <... write resumed>) = 4 [pid 5246] close(3 [pid 5245] exit_group(0 [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] close(3 [pid 5246] <... close resumed>) = 0 [pid 5245] <... exit_group resumed>) = ? [pid 5249] <... prctl resumed>) = 0 [pid 5248] <... prctl resumed>) = 0 [pid 5247] <... close resumed>) = 0 [pid 5246] write(1, "executing program\n", 18executing program [pid 5245] +++ exited with 0 +++ [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5248 [pid 5249] setpgid(0, 0 [pid 5248] setpgid(0, 0 [pid 5247] write(1, "executing program\n", 18executing program [pid 5246] <... write resumed>) = 18 [pid 5249] <... setpgid resumed>) = 0 [pid 5248] <... setpgid resumed>) = 0 [pid 5247] <... write resumed>) = 18 [pid 5246] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5247] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5246] <... bpf resumed>) = 3 [pid 5247] <... bpf resumed>) = 3 [pid 5246] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5249] <... openat resumed>) = 3 [pid 5248] <... openat resumed>) = 3 [pid 5246] <... bpf resumed>) = 4 [pid 5249] write(3, "1000", 4 [pid 5248] write(3, "1000", 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5248] <... write resumed>) = 4 [pid 5247] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5250 attached [pid 5249] <... write resumed>) = 4 [pid 5248] close(3 [pid 5247] <... bpf resumed>) = 4 [pid 5246] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5250] set_robust_list(0x555568f86660, 24 [pid 5249] close(3 [pid 5248] <... close resumed>) = 0 [pid 5250] <... set_robust_list resumed>) = 0 [pid 5248] write(1, "executing program\n", 18executing program [pid 5249] <... close resumed>) = 0 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5249] write(1, "executing program\n", 18executing program [pid 5248] <... write resumed>) = 18 [pid 5247] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5250] <... prctl resumed>) = 0 [pid 5249] <... write resumed>) = 18 [pid 5248] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5247] <... bpf resumed>) = 5 [pid 5246] <... bpf resumed>) = 5 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5250 [pid 5250] setpgid(0, 0 [pid 5249] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5248] <... bpf resumed>) = 3 [pid 5247] exit_group(0 [pid 5246] exit_group(0 [pid 5250] <... setpgid resumed>) = 0 [pid 5249] <... bpf resumed>) = 3 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5248] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5247] <... exit_group resumed>) = ? [pid 5246] <... exit_group resumed>) = ? [pid 5250] <... openat resumed>) = 3 [pid 5249] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5248] <... bpf resumed>) = 4 [pid 5247] +++ exited with 0 +++ [pid 5250] write(3, "1000", 4 [pid 5248] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5246] +++ exited with 0 +++ [pid 5250] <... write resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5250] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5250] <... close resumed>) = 0 [pid 5249] <... bpf resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5251 attached [pid 5250] write(1, "executing program\n", 18executing program ) = 18 [pid 5250] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5252 attached [pid 5251] set_robust_list(0x555568f86660, 24 [pid 5249] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5251 [pid 5252] set_robust_list(0x555568f86660, 24 [pid 5248] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5252 [pid 5252] <... set_robust_list resumed>) = 0 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5251] <... set_robust_list resumed>) = 0 [pid 5250] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5249] <... bpf resumed>) = 5 [pid 5252] <... prctl resumed>) = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5250] <... bpf resumed>) = 4 [pid 5249] exit_group(0 [pid 5248] exit_group(0 [pid 5251] <... prctl resumed>) = 0 [pid 5249] <... exit_group resumed>) = ? [pid 5252] setpgid(0, 0 [pid 5251] setpgid(0, 0 [pid 5250] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5249] +++ exited with 0 +++ [pid 5248] <... exit_group resumed>) = ? [pid 5252] <... setpgid resumed>) = 0 [pid 5251] <... setpgid resumed>) = 0 [pid 5250] <... bpf resumed>) = 5 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5250] exit_group(0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5252] <... openat resumed>) = 3 [pid 5251] write(3, "1000", 4 [pid 5250] <... exit_group resumed>) = ? [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5251] <... write resumed>) = 4 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5252] write(3, "1000", 4 [pid 5251] close(3 [pid 5252] <... write resumed>) = 4 [pid 5251] <... close resumed>) = 0 executing program [pid 5252] close(3 [pid 5251] write(1, "executing program\n", 18 [pid 5252] <... close resumed>) = 0 executing program [pid 5252] write(1, "executing program\n", 18 [pid 5251] <... write resumed>) = 18 [pid 5252] <... write resumed>) = 18 [pid 5251] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5252] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5251] <... bpf resumed>) = 3 [pid 5252] <... bpf resumed>) = 3 [pid 5251] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5253 attached [pid 5252] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5253] set_robust_list(0x555568f86660, 24 [pid 5252] <... bpf resumed>) = 4 [pid 5251] <... bpf resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5253 [pid 5252] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5251] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5253] <... set_robust_list resumed>) = 0 [pid 5250] +++ exited with 0 +++ [pid 5248] +++ exited with 0 +++ [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5253] <... prctl resumed>) = 0 [pid 5253] setpgid(0, 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached ./strace-static-x86_64: Process 5255 attached [pid 5253] <... setpgid resumed>) = 0 [pid 5254] set_robust_list(0x555568f86660, 24 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5255] set_robust_list(0x555568f86660, 24 [pid 5254] <... set_robust_list resumed>) = 0 [pid 5255] <... set_robust_list resumed>) = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5254 [pid 5255] setpgid(0, 0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5253] <... openat resumed>) = 3 [pid 5252] <... bpf resumed>) = 5 [pid 5251] <... bpf resumed>) = 5 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5255 [pid 5254] <... prctl resumed>) = 0 [pid 5255] <... setpgid resumed>) = 0 [pid 5254] setpgid(0, 0 [pid 5253] write(3, "1000", 4 [pid 5252] exit_group(0 [pid 5251] exit_group(0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] <... setpgid resumed>) = 0 [pid 5253] <... write resumed>) = 4 [pid 5252] <... exit_group resumed>) = ? [pid 5251] <... exit_group resumed>) = ? [pid 5255] <... openat resumed>) = 3 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] close(3 [pid 5252] +++ exited with 0 +++ [pid 5251] +++ exited with 0 +++ [pid 5253] <... close resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5253] write(1, "executing program\n", 18 [pid 5255] write(3, "1000", 4 [pid 5253] <... write resumed>) = 18 [pid 5255] <... write resumed>) = 4 [pid 5253] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5255] close(3 [pid 5254] <... openat resumed>) = 3 [pid 5255] <... close resumed>) = 0 [pid 5254] write(3, "1000", 4 [pid 5253] <... bpf resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5255] write(1, "executing program\n", 18 [pid 5254] <... write resumed>) = 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5255] <... write resumed>) = 18 [pid 5254] close(3) = 0 [pid 5253] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5254] write(1, "executing program\n", 18executing program [pid 5255] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5254] <... write resumed>) = 18 [pid 5253] <... bpf resumed>) = 4 [pid 5255] <... bpf resumed>) = 3 [pid 5255] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5254] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5253] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5255] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5255] <... bpf resumed>) = 5 [pid 5254] <... bpf resumed>) = 3 [pid 5253] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5255] exit_group(0 [pid 5253] exit_group(0 [pid 5254] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5253] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5256 attached [pid 5255] <... exit_group resumed>) = ? [pid 5254] <... bpf resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5257 attached [pid 5256] set_robust_list(0x555568f86660, 24 [pid 5254] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5256 [pid 5256] <... set_robust_list resumed>) = 0 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5257 [pid 5256] <... prctl resumed>) = 0 [pid 5257] set_robust_list(0x555568f86660, 24) = 0 [pid 5256] setpgid(0, 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5256] <... setpgid resumed>) = 0 [pid 5257] <... prctl resumed>) = 0 [pid 5257] setpgid(0, 0 [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] <... setpgid resumed>) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5256] <... openat resumed>) = 3 [pid 5257] write(3, "1000", 4 [pid 5256] write(3, "1000", 4 [pid 5255] +++ exited with 0 +++ [pid 5253] +++ exited with 0 +++ [pid 5256] <... write resumed>) = 4 [pid 5257] <... write resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5257] close(3 [pid 5256] close(3 [pid 5257] <... close resumed>) = 0 [pid 5256] <... close resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5257] write(1, "executing program\n", 18 executing program [pid 5256] write(1, "executing program\n", 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5258 attached [pid 5257] <... write resumed>) = 18 [pid 5256] <... write resumed>) = 18 ./strace-static-x86_64: Process 5259 attached [pid 5258] set_robust_list(0x555568f86660, 24 [pid 5257] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5256] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5259] set_robust_list(0x555568f86660, 24 [pid 5258] <... set_robust_list resumed>) = 0 [pid 5257] <... bpf resumed>) = 3 [pid 5256] <... bpf resumed>) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5258 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5259 [pid 5259] <... set_robust_list resumed>) = 0 [pid 5257] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] <... bpf resumed>) = 4 [pid 5256] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5254] <... bpf resumed>) = 5 [pid 5259] <... prctl resumed>) = 0 [pid 5258] <... prctl resumed>) = 0 [pid 5257] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5259] setpgid(0, 0 [pid 5257] <... bpf resumed>) = 5 [pid 5256] <... bpf resumed>) = 4 [pid 5259] <... setpgid resumed>) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5258] setpgid(0, 0 [pid 5257] exit_group(0 [pid 5256] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5254] exit_group(0 [pid 5257] <... exit_group resumed>) = ? [pid 5259] <... openat resumed>) = 3 [pid 5258] <... setpgid resumed>) = 0 [pid 5256] <... bpf resumed>) = 5 [pid 5254] <... exit_group resumed>) = ? [pid 5259] write(3, "1000", 4 [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] +++ exited with 0 +++ [pid 5256] exit_group(0 [pid 5259] <... write resumed>) = 4 [pid 5259] close(3) = 0 [pid 5259] write(1, "executing program\n", 18) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5259] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5258] <... openat resumed>) = 3 [pid 5256] <... exit_group resumed>) = ? [pid 5259] <... bpf resumed>) = 3 [pid 5259] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5259] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5260 attached [pid 5258] write(3, "1000", 4 [pid 5260] set_robust_list(0x555568f86660, 24 [pid 5254] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5260] <... set_robust_list resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5258] <... write resumed>) = 4 [pid 5256] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5260 [pid 5258] close(3) = 0 executing program [pid 5260] <... prctl resumed>) = 0 [pid 5258] write(1, "executing program\n", 18 [pid 5260] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5260] <... setpgid resumed>) = 0 [pid 5258] <... write resumed>) = 18 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5258] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5261 attached [pid 5260] <... openat resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5261 [pid 5258] <... bpf resumed>) = 3 [pid 5261] set_robust_list(0x555568f86660, 24 executing program [pid 5258] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5260] write(3, "1000", 4) = 4 [pid 5260] close(3) = 0 [pid 5260] write(1, "executing program\n", 18) = 18 [pid 5261] <... set_robust_list resumed>) = 0 [pid 5260] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5258] <... bpf resumed>) = 4 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5260] <... bpf resumed>) = 3 [pid 5260] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5261] <... prctl resumed>) = 0 [pid 5258] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5260] <... bpf resumed>) = 4 [pid 5261] <... openat resumed>) = 3 [pid 5260] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5261] write(3, "1000", 4) = 4 executing program [pid 5261] close(3 [pid 5260] <... bpf resumed>) = 5 [pid 5259] <... bpf resumed>) = 5 [pid 5258] <... bpf resumed>) = 5 [pid 5261] <... close resumed>) = 0 [pid 5260] exit_group(0 [pid 5259] exit_group(0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5261] write(1, "executing program\n", 18 [pid 5259] <... exit_group resumed>) = ? [pid 5258] exit_group(0 [pid 5261] <... write resumed>) = 18 [pid 5260] <... exit_group resumed>) = ? [pid 5259] +++ exited with 0 +++ ./strace-static-x86_64: Process 5262 attached [pid 5261] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5258] <... exit_group resumed>) = ? [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5262 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5262] set_robust_list(0x555568f86660, 24 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5261] <... bpf resumed>) = 3 [pid 5261] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5262] <... set_robust_list resumed>) = 0 [pid 5261] <... bpf resumed>) = 4 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5261] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5262] setpgid(0, 0) = 0 [pid 5260] +++ exited with 0 +++ [pid 5258] +++ exited with 0 +++ [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5263 attached [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5263] set_robust_list(0x555568f86660, 24 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5263 [pid 5263] <... set_robust_list resumed>) = 0 [pid 5262] <... openat resumed>) = 3 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5262] write(3, "1000", 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5262] <... write resumed>) = 4 [pid 5263] <... prctl resumed>) = 0 [pid 5263] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5264 attached [pid 5262] close(3 [pid 5261] <... bpf resumed>) = 5 executing program [pid 5264] set_robust_list(0x555568f86660, 24 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5262] <... close resumed>) = 0 [pid 5261] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5264 [pid 5262] write(1, "executing program\n", 18) = 18 [pid 5261] <... exit_group resumed>) = ? [pid 5264] <... set_robust_list resumed>) = 0 [pid 5263] <... openat resumed>) = 3 [pid 5262] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] write(3, "1000", 4 [pid 5264] setpgid(0, 0) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5261] +++ exited with 0 +++ [pid 5263] <... write resumed>) = 4 [pid 5264] <... openat resumed>) = 3 [pid 5262] <... bpf resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5263] close(3 [pid 5262] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5265 attached [pid 5264] write(3, "1000", 4 [pid 5263] <... close resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5265 executing program [pid 5265] set_robust_list(0x555568f86660, 24 [pid 5263] write(1, "executing program\n", 18 [pid 5265] <... set_robust_list resumed>) = 0 [pid 5264] <... write resumed>) = 4 [pid 5263] <... write resumed>) = 18 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5264] close(3 [pid 5263] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5265] <... prctl resumed>) = 0 [pid 5264] <... close resumed>) = 0 [pid 5263] <... bpf resumed>) = 3 [pid 5262] <... bpf resumed>) = 4 executing program [pid 5265] setpgid(0, 0 [pid 5264] write(1, "executing program\n", 18 [pid 5263] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5262] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5265] <... setpgid resumed>) = 0 [pid 5264] <... write resumed>) = 18 [pid 5263] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5263] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5266 attached [pid 5265] <... openat resumed>) = 3 [pid 5264] <... bpf resumed>) = 3 [pid 5266] set_robust_list(0x555568f86660, 24) = 0 [pid 5265] write(3, "1000", 4 [pid 5264] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5266 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5265] <... write resumed>) = 4 [pid 5264] <... bpf resumed>) = 4 [pid 5266] <... prctl resumed>) = 0 [pid 5265] close(3 [pid 5266] setpgid(0, 0executing program ) = 0 [pid 5265] <... close resumed>) = 0 [pid 5265] write(1, "executing program\n", 18 [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5265] <... write resumed>) = 18 [pid 5266] <... openat resumed>) = 3 [pid 5265] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5266] write(3, "1000", 4 [pid 5265] <... bpf resumed>) = 3 [pid 5264] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5265] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5266] <... write resumed>) = 4 executing program [pid 5265] <... bpf resumed>) = 4 [pid 5266] close(3) = 0 [pid 5266] write(1, "executing program\n", 18) = 18 [pid 5265] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5266] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5264] <... bpf resumed>) = 5 [pid 5263] <... bpf resumed>) = 5 [pid 5262] <... bpf resumed>) = 5 [pid 5266] <... bpf resumed>) = 3 [pid 5265] <... bpf resumed>) = 5 [pid 5264] exit_group(0 [pid 5263] exit_group(0 [pid 5262] exit_group(0 [pid 5266] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5265] exit_group(0 [pid 5264] <... exit_group resumed>) = ? [pid 5263] <... exit_group resumed>) = ? [pid 5262] <... exit_group resumed>) = ? [pid 5266] <... bpf resumed>) = 4 [pid 5265] <... exit_group resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5265] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5266] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5263] +++ exited with 0 +++ [pid 5262] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5267 ./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x555568f86660, 24) = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5267] setpgid(0, 0) = 0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3) = 0 executing program [pid 5267] write(1, "executing program\n", 18) = 18 [pid 5267] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5267] <... bpf resumed>) = 3 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5267] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached ./strace-static-x86_64: Process 5268 attached ./strace-static-x86_64: Process 5270 attached [pid 5267] <... bpf resumed>) = 4 [pid 5269] set_robust_list(0x555568f86660, 24 [pid 5268] set_robust_list(0x555568f86660, 24 [pid 5270] set_robust_list(0x555568f86660, 24 [pid 5269] <... set_robust_list resumed>) = 0 [pid 5268] <... set_robust_list resumed>) = 0 [pid 5267] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5268 [pid 5270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5269 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5270 [pid 5270] <... prctl resumed>) = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5268] <... prctl resumed>) = 0 [pid 5270] setpgid(0, 0) = 0 [pid 5269] <... prctl resumed>) = 0 [pid 5268] setpgid(0, 0 [pid 5270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5268] <... setpgid resumed>) = 0 [pid 5269] setpgid(0, 0 [pid 5270] <... openat resumed>) = 3 [pid 5269] <... setpgid resumed>) = 0 [pid 5270] write(3, "1000", 4 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5267] <... bpf resumed>) = 5 [pid 5266] <... bpf resumed>) = 5 [pid 5270] <... write resumed>) = 4 [pid 5270] close(3 [pid 5269] <... openat resumed>) = 3 [pid 5266] exit_group(0 [pid 5270] <... close resumed>) = 0 [pid 5268] <... openat resumed>) = 3 [pid 5267] exit_group(0 [pid 5270] write(1, "executing program\n", 18executing program [pid 5269] write(3, "1000", 4 [pid 5267] <... exit_group resumed>) = ? [pid 5268] write(3, "1000", 4 [pid 5266] <... exit_group resumed>) = ? [pid 5270] <... write resumed>) = 18 [pid 5269] <... write resumed>) = 4 [pid 5270] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5269] close(3 [pid 5268] <... write resumed>) = 4 [pid 5270] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5269] <... close resumed>) = 0 [pid 5268] close(3) = 0 [pid 5270] <... bpf resumed>) = 4 [pid 5269] write(1, "executing program\n", 18executing program executing program [pid 5268] write(1, "executing program\n", 18 [pid 5270] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5269] <... write resumed>) = 18 [pid 5268] <... write resumed>) = 18 [pid 5267] +++ exited with 0 +++ [pid 5266] +++ exited with 0 +++ [pid 5269] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5268] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5269] <... bpf resumed>) = 3 [pid 5268] <... bpf resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5269] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5268] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5269] <... bpf resumed>) = 4 [pid 5268] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5271 attached [pid 5269] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5271] set_robust_list(0x555568f86660, 24 [pid 5268] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5271 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5271] <... set_robust_list resumed>) = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5269] <... bpf resumed>) = 5 [pid 5271] <... prctl resumed>) = 0 [pid 5269] exit_group(0 [pid 5268] <... bpf resumed>) = 5 [pid 5271] setpgid(0, 0 [pid 5268] exit_group(0 [pid 5271] <... setpgid resumed>) = 0 [pid 5270] <... bpf resumed>) = 5 [pid 5269] <... exit_group resumed>) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5272 attached [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5270] exit_group(0 [pid 5269] +++ exited with 0 +++ [pid 5268] <... exit_group resumed>) = ? [pid 5272] set_robust_list(0x555568f86660, 24 [pid 5270] <... exit_group resumed>) = ? [pid 5268] +++ exited with 0 +++ [pid 5272] <... set_robust_list resumed>) = 0 [pid 5270] +++ exited with 0 +++ [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5271] <... openat resumed>) = 3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5268, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5233] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5272 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5270, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5271] write(3, "1000", 4 [pid 5272] <... prctl resumed>) = 0 [pid 5271] <... write resumed>) = 4 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5271] close(3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5272] setpgid(0, 0./strace-static-x86_64: Process 5273 attached [pid 5271] <... close resumed>) = 0 ./strace-static-x86_64: Process 5274 attached [pid 5273] set_robust_list(0x555568f86660, 24 [pid 5272] <... setpgid resumed>) = 0 [pid 5271] write(1, "executing program\n", 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5274] set_robust_list(0x555568f86660, 24executing program [pid 5273] <... set_robust_list resumed>) = 0 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5275 attached [pid 5271] <... write resumed>) = 18 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5273 [pid 5274] <... set_robust_list resumed>) = 0 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5271] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5275] set_robust_list(0x555568f86660, 24 [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5273] <... prctl resumed>) = 0 [pid 5272] <... openat resumed>) = 3 [pid 5271] <... bpf resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5275 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5274 [pid 5275] <... set_robust_list resumed>) = 0 [pid 5274] <... prctl resumed>) = 0 [pid 5273] setpgid(0, 0 [pid 5272] write(3, "1000", 4 [pid 5274] setpgid(0, 0 [pid 5272] <... write resumed>) = 4 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5271] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5275] <... prctl resumed>) = 0 [pid 5274] <... setpgid resumed>) = 0 [pid 5273] <... setpgid resumed>) = 0 [pid 5272] close(3 [pid 5275] setpgid(0, 0 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5272] <... close resumed>) = 0 [pid 5271] <... bpf resumed>) = 4 [pid 5275] <... setpgid resumed>) = 0 [pid 5274] <... openat resumed>) = 3 [pid 5272] write(1, "executing program\n", 18executing program [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5274] write(3, "1000", 4 [pid 5273] <... openat resumed>) = 3 [pid 5272] <... write resumed>) = 18 [pid 5271] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5275] <... openat resumed>) = 3 [pid 5274] <... write resumed>) = 4 [pid 5273] write(3, "1000", 4 [pid 5272] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5274] close(3 [pid 5273] <... write resumed>) = 4 [pid 5272] <... bpf resumed>) = 3 [pid 5271] <... bpf resumed>) = 5 [pid 5274] <... close resumed>) = 0 [pid 5273] close(3executing program executing program ) = 0 [pid 5274] write(1, "executing program\n", 18 [pid 5273] write(1, "executing program\n", 18 [pid 5275] write(3, "1000", 4 [pid 5274] <... write resumed>) = 18 [pid 5273] <... write resumed>) = 18 [pid 5272] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5271] exit_group(0 [pid 5275] <... write resumed>) = 4 [pid 5274] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5273] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5272] <... bpf resumed>) = 4 executing program [pid 5275] close(3 [pid 5274] <... bpf resumed>) = 3 [pid 5273] <... bpf resumed>) = 3 [pid 5271] <... exit_group resumed>) = ? [pid 5275] <... close resumed>) = 0 [pid 5275] write(1, "executing program\n", 18 [pid 5272] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5275] <... write resumed>) = 18 [pid 5274] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5273] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5271] +++ exited with 0 +++ [pid 5275] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5274] <... bpf resumed>) = 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5273] <... bpf resumed>) = 4 [pid 5275] <... bpf resumed>) = 3 [pid 5273] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5272] <... bpf resumed>) = 5 [pid 5275] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5274] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5273] <... bpf resumed>) = 5 [pid 5272] exit_group(0 [pid 5274] <... bpf resumed>) = 5 [pid 5272] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5276 attached [pid 5275] <... bpf resumed>) = 4 [pid 5274] exit_group(0 [pid 5273] exit_group(0 [pid 5272] +++ exited with 0 +++ [pid 5274] <... exit_group resumed>) = ? [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5276] set_robust_list(0x555568f86660, 24 [pid 5275] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5273] <... exit_group resumed>) = ? [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5276] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5276 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5277 attached [pid 5276] <... prctl resumed>) = 0 [pid 5276] setpgid(0, 0 [pid 5277] set_robust_list(0x555568f86660, 24 [pid 5276] <... setpgid resumed>) = 0 [pid 5277] <... set_robust_list resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5277 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5275] <... bpf resumed>) = 5 [pid 5274] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5277] <... prctl resumed>) = 0 [pid 5275] exit_group(0 [pid 5277] setpgid(0, 0 [pid 5276] <... openat resumed>) = 3 [pid 5275] <... exit_group resumed>) = ? [pid 5277] <... setpgid resumed>) = 0 [pid 5276] write(3, "1000", 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5276] <... write resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5278 ./strace-static-x86_64: Process 5278 attached [pid 5277] <... openat resumed>) = 3 [pid 5276] close(3 [pid 5278] set_robust_list(0x555568f86660, 24 [pid 5277] write(3, "1000", 4 [pid 5276] <... close resumed>) = 0 [pid 5278] <... set_robust_list resumed>) = 0 executing program [pid 5277] <... write resumed>) = 4 [pid 5276] write(1, "executing program\n", 18 [pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5277] close(3 [pid 5276] <... write resumed>) = 18 [pid 5278] <... prctl resumed>) = 0 [pid 5277] <... close resumed>) = 0 [pid 5278] setpgid(0, 0 [pid 5277] write(1, "executing program\n", 18 executing program [pid 5276] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5278] <... setpgid resumed>) = 0 [pid 5277] <... write resumed>) = 18 [pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5277] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5276] <... bpf resumed>) = 3 [pid 5277] <... bpf resumed>) = 3 [pid 5276] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5278] <... openat resumed>) = 3 [pid 5276] <... bpf resumed>) = 4 [pid 5276] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5278] write(3, "1000", 4 [pid 5277] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5276] <... bpf resumed>) = 5 [pid 5273] +++ exited with 0 +++ [pid 5276] exit_group(0 [pid 5278] <... write resumed>) = 4 [pid 5277] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5278] close(3 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5278] <... close resumed>) = 0 [pid 5277] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5278] write(1, "executing program\n", 18 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5278] <... write resumed>) = 18 [pid 5276] <... exit_group resumed>) = ? executing program [pid 5278] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5278] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5277] <... bpf resumed>) = 5 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5279 attached [pid 5278] <... bpf resumed>) = 4 [pid 5277] exit_group(0 [pid 5275] +++ exited with 0 +++ [pid 5278] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5279 [pid 5279] set_robust_list(0x555568f86660, 24 [pid 5277] <... exit_group resumed>) = ? [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5279] <... set_robust_list resumed>) = 0 [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5279] setpgid(0, 0) = 0 [pid 5278] <... bpf resumed>) = 5 [pid 5276] +++ exited with 0 +++ [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5278] exit_group(0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5278] <... exit_group resumed>) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5279] <... openat resumed>) = 3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5279] write(3, "1000", 4) = 4 [pid 5279] close(3./strace-static-x86_64: Process 5281 attached ) = 0 [pid 5281] set_robust_list(0x555568f86660, 24 [pid 5279] write(1, "executing program\n", 18./strace-static-x86_64: Process 5280 attached [pid 5281] <... set_robust_list resumed>) = 0 [pid 5279] <... write resumed>) = 18 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5279] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5281] <... prctl resumed>) = 0 [pid 5280] set_robust_list(0x555568f86660, 24 [pid 5279] <... bpf resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5281 [pid 5281] setpgid(0, 0) = 0 [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5280] <... set_robust_list resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5280 [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5280] setpgid(0, 0) = 0 [pid 5279] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5281] <... openat resumed>) = 3 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5281] write(3, "1000", 4 [pid 5280] <... openat resumed>) = 3 [pid 5279] <... bpf resumed>) = 4 [pid 5281] <... write resumed>) = 4 [pid 5281] close(3 [pid 5279] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5277] +++ exited with 0 +++ [pid 5281] <... close resumed>) = 0 [pid 5280] write(3, "1000", 4 [pid 5278] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5281] write(1, "executing program\n", 18 [pid 5280] <... write resumed>) = 4 executing program [pid 5281] <... write resumed>) = 18 [pid 5280] close(3 [pid 5281] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5280] <... close resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5281] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5280] write(1, "executing program\n", 18 [pid 5228] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5281] <... bpf resumed>) = 4 [pid 5280] <... write resumed>) = 18 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5280] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5280] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5281] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5282 attached [pid 5282] set_robust_list(0x555568f86660, 24) = 0 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5283 attached ) = 0 [pid 5281] <... bpf resumed>) = 5 [pid 5280] <... bpf resumed>) = 4 [pid 5279] <... bpf resumed>) = 5 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5282 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5283 [pid 5283] set_robust_list(0x555568f86660, 24 [pid 5280] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5279] exit_group(0 [pid 5283] <... set_robust_list resumed>) = 0 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5282] setpgid(0, 0 [pid 5281] exit_group(0 [pid 5280] <... bpf resumed>) = 5 [pid 5279] <... exit_group resumed>) = ? [pid 5282] <... setpgid resumed>) = 0 [pid 5281] <... exit_group resumed>) = ? [pid 5283] <... prctl resumed>) = 0 [pid 5283] setpgid(0, 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5280] exit_group(0 [pid 5279] +++ exited with 0 +++ [pid 5280] <... exit_group resumed>) = ? [pid 5283] <... setpgid resumed>) = 0 [pid 5282] <... openat resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5282] write(3, "1000", 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5283] <... openat resumed>) = 3 [pid 5282] <... write resumed>) = 4 [pid 5283] write(3, "1000", 4 [pid 5282] close(3 [pid 5283] <... write resumed>) = 4 [pid 5282] <... close resumed>) = 0 [pid 5283] close(3 executing program [pid 5282] write(1, "executing program\n", 18 [pid 5283] <... close resumed>) = 0 [pid 5282] <... write resumed>) = 18 [pid 5283] write(1, "executing program\n", 18 executing program [pid 5282] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5283] <... write resumed>) = 18 [pid 5282] <... bpf resumed>) = 3 [pid 5283] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5282] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5283] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5282] <... bpf resumed>) = 4 [pid 5283] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5282] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5281] +++ exited with 0 +++ ./strace-static-x86_64: Process 5284 attached [pid 5284] set_robust_list(0x555568f86660, 24 [pid 5280] +++ exited with 0 +++ [pid 5284] <... set_robust_list resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5284 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5284] <... prctl resumed>) = 0 [pid 5284] setpgid(0, 0) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5284] write(3, "1000", 4) = 4 [pid 5284] close(3) = 0 [pid 5284] write(1, "executing program\n", 18executing program ) = 18 [pid 5284] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5284] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5284] <... bpf resumed>) = 4 [pid 5283] <... bpf resumed>) = 5 [pid 5283] exit_group(0 [pid 5282] <... bpf resumed>) = 5 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5282] exit_group(0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5284] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5283] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5286 attached [pid 5284] <... bpf resumed>) = 5 [pid 5282] <... exit_group resumed>) = ? [pid 5283] +++ exited with 0 +++ [pid 5286] set_robust_list(0x555568f86660, 24 [pid 5284] exit_group(0 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5284] <... exit_group resumed>) = ? [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5286 ./strace-static-x86_64: Process 5285 attached [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5285 [pid 5285] set_robust_list(0x555568f86660, 24 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5286] <... prctl resumed>) = 0 [pid 5285] <... set_robust_list resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5286] setpgid(0, 0) = 0 [pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5285] <... prctl resumed>) = 0 [pid 5286] write(3, "1000", 4 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5285] setpgid(0, 0 [pid 5282] +++ exited with 0 +++ [pid 5285] <... setpgid resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] <... write resumed>) = 4 [pid 5284] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5286] close(3./strace-static-x86_64: Process 5287 attached ) = 0 [pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] set_robust_list(0x555568f86660, 24 [pid 5286] write(1, "executing program\n", 18executing program [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] <... write resumed>) = 18 [pid 5285] <... openat resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5287 ./strace-static-x86_64: Process 5288 attached [pid 5287] <... set_robust_list resumed>) = 0 [pid 5286] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5285] write(3, "1000", 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5288] set_robust_list(0x555568f86660, 24 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5285] <... write resumed>) = 4 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5287] <... prctl resumed>) = 0 [pid 5286] <... bpf resumed>) = 3 [pid 5285] close(3 [pid 5287] setpgid(0, 0 [pid 5286] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5285] <... close resumed>) = 0 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5287] <... setpgid resumed>) = 0 [pid 5286] <... bpf resumed>) = 4 [pid 5285] write(1, "executing program\n", 18 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5288 [pid 5288] <... prctl resumed>) = 0 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5288] setpgid(0, 0 [pid 5287] <... openat resumed>) = 3 [pid 5285] <... write resumed>) = 18 [pid 5288] <... setpgid resumed>) = 0 [pid 5286] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5285] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5285] <... bpf resumed>) = 3 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] write(3, "1000", 4 [pid 5285] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5288] <... openat resumed>) = 3 [pid 5287] <... write resumed>) = 4 [pid 5288] write(3, "1000", 4 [pid 5287] close(3 [pid 5288] <... write resumed>) = 4 [pid 5287] <... close resumed>) = 0 [pid 5288] close(3 [pid 5287] write(1, "executing program\n", 18 [pid 5288] <... close resumed>) = 0 [pid 5287] <... write resumed>) = 18 [pid 5285] <... bpf resumed>) = 4 [pid 5288] write(1, "executing program\n", 18 [pid 5287] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5288] <... write resumed>) = 18 [pid 5287] <... bpf resumed>) = 3 [pid 5288] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5285] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5288] <... bpf resumed>) = 3 [pid 5288] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5289 attached ) = 4 [pid 5287] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5289] set_robust_list(0x555568f86660, 24) = 0 [pid 5288] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5289 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5289] setpgid(0, 0 [pid 5286] <... bpf resumed>) = 5 [pid 5289] <... setpgid resumed>) = 0 [pid 5287] <... bpf resumed>) = 4 [pid 5287] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] <... bpf resumed>) = 5 [pid 5286] exit_group(0 [pid 5285] <... bpf resumed>) = 5 [pid 5288] <... bpf resumed>) = 5 [pid 5287] exit_group(0 [pid 5286] <... exit_group resumed>) = ? [pid 5289] <... openat resumed>) = 3 [pid 5285] exit_group(0 [pid 5289] write(3, "1000", 4 [ 59.685059][ T5224] [ 59.687423][ T5224] ====================================================== [ 59.694605][ T5224] WARNING: possible circular locking dependency detected [ 59.701633][ T5224] 6.10.0-syzkaller-12666-g3d650ab5e7d9 #0 Not tainted [ 59.708372][ T5224] ------------------------------------------------------ [ 59.715454][ T5224] strace-static-x/5224 is trying to acquire lock: [ 59.721844][ T5224] ffff888024c4e218 (&htab->lockdep_key){....}-{2:2}, at: htab_lock_bucket+0x1a4/0x370 [ 59.731494][ T5224] [ 59.731494][ T5224] but task is already holding lock: [ 59.739006][ T5224] ffff888023c33188 (&htab->lockdep_key#3){....}-{2:2}, at: htab_lock_bucket+0x1a4/0x370 [ 59.748722][ T5224] [ 59.748722][ T5224] which lock already depends on the new lock. [ 59.748722][ T5224] [ 59.759103][ T5224] [ 59.759103][ T5224] the existing dependency chain (in reverse order) is: [ 59.768092][ T5224] [ 59.768092][ T5224] -> #1 (&htab->lockdep_key#3){....}-{2:2}: [ 59.776149][ T5224] lock_acquire+0x1ed/0x550 [ 59.781155][ T5224] _raw_spin_lock+0x2e/0x40 [ 59.786168][ T5224] htab_lock_bucket+0x1a4/0x370 [ 59.791626][ T5224] htab_lru_map_delete_elem+0x1f1/0x700 [ 59.797678][ T5224] bpf_prog_6f5f05285f674219+0x43/0x4c [ 59.803644][ T5224] bpf_trace_run2+0x2ec/0x540 [ 59.808822][ T5224] __traceiter_contention_begin+0x7b/0xb0 [ 59.815068][ T5224] trace_contention_begin+0x117/0x140 [ 59.820939][ T5224] __pv_queued_spin_lock_slowpath+0x114/0xdc0 [ 59.827503][ T5224] queued_spin_lock_slowpath+0x42/0x50 [ 59.833460][ T5224] do_raw_spin_lock+0x272/0x370 [ 59.838809][ T5224] htab_lock_bucket+0x1a4/0x370 [ 59.844160][ T5224] htab_lru_map_delete_elem+0x1f1/0x700 [ 59.850209][ T5224] 0xffffffffa000204b [ 59.854688][ T5224] bpf_trace_run2+0x2ec/0x540 [ 59.859864][ T5224] __traceiter_contention_begin+0x7b/0xb0 [ 59.866175][ T5224] trace_contention_begin+0xf5/0x120 [ 59.871959][ T5224] __mutex_lock+0x147/0xd70 [ 59.876981][ T5224] pipe_read+0x12a/0x13e0 [ 59.881820][ T5224] vfs_read+0x9bd/0xbc0 [ 59.886559][ T5224] ksys_read+0x1a0/0x2c0 [ 59.891297][ T5224] do_syscall_64+0xf3/0x230 [ 59.896324][ T5224] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.902718][ T5224] [ 59.902718][ T5224] -> #0 (&htab->lockdep_key){....}-{2:2}: [ 59.910775][ T5224] validate_chain+0x18e0/0x5900 [ 59.916127][ T5224] __lock_acquire+0x137a/0x2040 [ 59.921476][ T5224] lock_acquire+0x1ed/0x550 [ 59.926498][ T5224] _raw_spin_lock+0x2e/0x40 [ 59.931519][ T5224] htab_lock_bucket+0x1a4/0x370 [ 59.936877][ T5224] htab_lru_map_delete_elem+0x1f1/0x700 [ 59.942926][ T5224] 0xffffffffa000204b [ 59.947497][ T5224] bpf_trace_run2+0x2ec/0x540 [ 59.952681][ T5224] __traceiter_contention_begin+0x7b/0xb0 [ 59.958905][ T5224] trace_contention_begin+0x117/0x140 [ 59.964785][ T5224] __pv_queued_spin_lock_slowpath+0x114/0xdc0 [ 59.971352][ T5224] queued_spin_lock_slowpath+0x42/0x50 [ 59.977312][ T5224] do_raw_spin_lock+0x272/0x370 [ 59.982660][ T5224] htab_lock_bucket+0x1a4/0x370 [ 59.988010][ T5224] htab_lru_map_delete_elem+0x1f1/0x700 [ 59.994230][ T5224] bpf_prog_6f5f05285f674219+0x43/0x4c [ 60.000185][ T5224] bpf_trace_run2+0x2ec/0x540 [ 60.005364][ T5224] __traceiter_contention_begin+0x7b/0xb0 [ 60.011585][ T5224] trace_contention_begin+0xf5/0x120 [ 60.017453][ T5224] __mutex_lock+0x147/0xd70 [ 60.022452][ T5224] pipe_write+0x1c9/0x1a40 [ 60.027459][ T5224] vfs_write+0xa72/0xc90 [ 60.032373][ T5224] ksys_write+0x1a0/0x2c0 [ 60.037551][ T5224] do_syscall_64+0xf3/0x230 [ 60.042551][ T5224] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 60.049125][ T5224] [ 60.049125][ T5224] other info that might help us debug this: [ 60.049125][ T5224] [ 60.059341][ T5224] Possible unsafe locking scenario: [ 60.059341][ T5224] [ 60.066774][ T5224] CPU0 CPU1 [ 60.072206][ T5224] ---- ---- [ 60.077552][ T5224] lock(&htab->lockdep_key#3); [ 60.082392][ T5224] lock(&htab->lockdep_key); [ 60.089567][ T5224] lock(&htab->lockdep_key#3); [ 60.096921][ T5224] lock(&htab->lockdep_key); [ 60.102037][ T5224] [ 60.102037][ T5224] *** DEADLOCK *** [ 60.102037][ T5224] [ 60.110174][ T5224] 4 locks held by strace-static-x/5224: [ 60.115785][ T5224] #0: ffff88802c11bc68 (&pipe->mutex){+.+.}-{3:3}, at: pipe_write+0x1c9/0x1a40 [ 60.124906][ T5224] #1: ffffffff8e937660 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 60.134362][ T5224] #2: ffff888023c33188 (&htab->lockdep_key#3){....}-{2:2}, at: htab_lock_bucket+0x1a4/0x370 [ 60.144548][ T5224] #3: ffffffff8e937660 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 60.153936][ T5224] [ 60.153936][ T5224] stack backtrace: [ 60.159820][ T5224] CPU: 0 UID: 0 PID: 5224 Comm: strace-static-x Not tainted 6.10.0-syzkaller-12666-g3d650ab5e7d9 #0 [ 60.170563][ T5224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 60.180607][ T5224] Call Trace: [ 60.183871][ T5224] [ 60.186786][ T5224] dump_stack_lvl+0x241/0x360 [ 60.191535][ T5224] ? __pfx_dump_stack_lvl+0x10/0x10 [ 60.196724][ T5224] ? print_circular_bug+0x130/0x1a0 [ 60.201899][ T5224] check_noncircular+0x36a/0x4a0 [ 60.206820][ T5224] ? __pfx_check_noncircular+0x10/0x10 [ 60.212257][ T5224] ? lockdep_lock+0x123/0x2b0 [ 60.216951][ T5224] ? lock_release+0xbf/0xa30 [ 60.221609][ T5224] ? __pfx_lock_acquire+0x10/0x10 [ 60.226616][ T5224] ? deref_stack_reg+0x1c7/0x260 [ 60.231571][ T5224] ? _find_first_zero_bit+0xd3/0x100 [ 60.236846][ T5224] validate_chain+0x18e0/0x5900 [ 60.241674][ T5224] ? __read_once_word_nocheck+0x9/0x20 [ 60.247207][ T5224] ? __pfx_validate_chain+0x10/0x10 [ 60.252391][ T5224] ? lock_release+0xbf/0xa30 [ 60.257051][ T5224] ? __pfx_lock_acquire+0x10/0x10 [ 60.262054][ T5224] ? deref_stack_reg+0x1c7/0x260 [ 60.266981][ T5224] ? __pfx_lock_release+0x10/0x10 [ 60.272004][ T5224] ? __read_once_word_nocheck+0x9/0x20 [ 60.277460][ T5224] ? deref_stack_reg+0x1c7/0x260 [ 60.282381][ T5224] ? 0xffffffffa0001fa4 [ 60.286510][ T5224] ? 0xffffffffa0001fa4 [ 60.290647][ T5224] ? is_bpf_text_address+0x285/0x2a0 [ 60.295952][ T5224] ? is_bpf_text_address+0x26/0x2a0 [ 60.301156][ T5224] ? mark_lock+0x9a/0x350 [ 60.305472][ T5224] ? unwind_get_return_address+0x91/0xc0 [ 60.311087][ T5224] __lock_acquire+0x137a/0x2040 [ 60.315960][ T5224] lock_acquire+0x1ed/0x550 [ 60.320619][ T5224] ? htab_lock_bucket+0x1a4/0x370 [ 60.325623][ T5224] ? __pfx_lock_acquire+0x10/0x10 [ 60.330712][ T5224] ? lockdep_unlock+0x16a/0x300 [ 60.335541][ T5224] ? __pfx_lockdep_unlock+0x10/0x10 [ 60.340719][ T5224] ? __pfx_validate_chain+0x10/0x10 [ 60.345984][ T5224] _raw_spin_lock+0x2e/0x40 [ 60.350477][ T5224] ? htab_lock_bucket+0x1a4/0x370 [ 60.355584][ T5224] htab_lock_bucket+0x1a4/0x370 [ 60.360422][ T5224] ? __pfx_htab_lock_bucket+0x10/0x10 [ 60.365869][ T5224] ? htab_map_hash+0x1cb/0x330 [ 60.370678][ T5224] htab_lru_map_delete_elem+0x1f1/0x700 [ 60.376225][ T5224] ? __pfx_lock_acquire+0x10/0x10 [ 60.381282][ T5224] ? __pfx_htab_lru_map_delete_elem+0x10/0x10 [ 60.387339][ T5224] ? __pfx___cant_migrate+0x10/0x10 [ 60.392523][ T5224] ? bpf_trace_run2+0x1fc/0x540 [ 60.397355][ T5224] ? bpf_trace_run2+0x2ec/0x540 [ 60.402188][ T5224] ? __pfx_bpf_trace_run2+0x10/0x10 [ 60.407451][ T5224] ? validate_chain+0x11e/0x5900 [ 60.412373][ T5224] ? __pfx___bpf_trace_contention_begin+0x10/0x10 [ 60.419354][ T5224] ? __traceiter_contention_begin+0x7b/0xb0 [ 60.425231][ T5224] ? trace_contention_begin+0x117/0x140 [ 60.430751][ T5224] ? __pv_queued_spin_lock_slowpath+0x114/0xdc0 [ 60.436981][ T5224] ? __pfx___pv_queued_spin_lock_slowpath+0x10/0x10 [ 60.443554][ T5224] ? queued_spin_lock_slowpath+0x42/0x50 [ 60.449167][ T5224] ? do_raw_spin_lock+0x272/0x370 [ 60.454171][ T5224] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 60.459523][ T5224] ? htab_lock_bucket+0x1a4/0x370 [ 60.464525][ T5224] ? __pfx_htab_lock_bucket+0x10/0x10 [ 60.469874][ T5224] ? htab_map_hash+0x1cb/0x330 [ 60.474612][ T5224] ? htab_lru_map_delete_elem+0x1f1/0x700 [ 60.480311][ T5224] ? __pfx_lock_acquire+0x10/0x10 [ 60.485317][ T5224] ? __pfx_htab_lru_map_delete_elem+0x10/0x10 [ 60.491363][ T5224] ? __pfx___cant_migrate+0x10/0x10 [ 60.496547][ T5224] ? prandom_u32_state+0x1e/0x180 [ 60.501551][ T5224] ? bpf_trace_run2+0x1fc/0x540 [ 60.506388][ T5224] ? bpf_prog_6f5f05285f674219+0x43/0x4c [ 60.511994][ T5224] ? bpf_trace_run2+0x2ec/0x540 [ 60.516826][ T5224] ? __pfx_bpf_trace_run2+0x10/0x10 [ 60.521999][ T5224] ? __pfx___might_resched+0x10/0x10 [ 60.527270][ T5224] ? __pfx___bpf_trace_contention_begin+0x10/0x10 [ 60.533658][ T5224] ? __traceiter_contention_begin+0x7b/0xb0 [ 60.539543][ T5224] ? trace_contention_begin+0xf5/0x120 [ 60.544980][ T5224] ? __mutex_lock+0x147/0xd70 [ 60.549637][ T5224] ? pipe_write+0x1c9/0x1a40 [ 60.554209][ T5224] ? __pfx___mutex_lock+0x10/0x10 [ 60.559210][ T5224] ? aa_file_perm+0x137/0xf60 [ 60.563866][ T5224] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 60.569744][ T5224] ? pipe_write+0x1c9/0x1a40 [ 60.574323][ T5224] ? __lock_task_sighand+0x149/0x2d0 [ 60.579589][ T5224] ? end_current_label_crit_section+0x14e/0x180 [ 60.585807][ T5224] ? __pfx_pipe_write+0x10/0x10 [ 60.590636][ T5224] ? bpf_lsm_file_permission+0x9/0x10 [ 60.595984][ T5224] ? security_file_permission+0x7f/0xa0 [ 60.601514][ T5224] ? vfs_write+0xa72/0xc90 [ 60.605909][ T5224] ? __pfx_pipe_write+0x10/0x10 [ 60.610738][ T5224] ? __pfx_vfs_write+0x10/0x10 [ 60.615579][ T5224] ? lockdep_hardirqs_on+0x99/0x150 [ 60.620753][ T5224] ? ksys_write+0x1a0/0x2c0 [ 60.625244][ T5224] ? __pfx_ksys_write+0x10/0x10 [ 60.630069][ T5224] ? do_syscall_64+0x100/0x230 [pid 5288] exit_group(0 [pid 5287] <... exit_group resumed>) = ? [pid 5285] <... exit_group resumed>) = ? [pid 5289] <... write resumed>) = 4 [pid 5286] +++ exited with 0 +++ [pid 5289] close(3) = 0 [pid 5288] <... exit_group resumed>) = ? [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5289] write(1, "executing program\n", 18 [pid 5288] +++ exited with 0 +++ executing program [pid 5289] <... write resumed>) = 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5289] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5289] <... bpf resumed>) = 3 [pid 5230] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5290 attached [pid 5289] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5290 [pid 5290] set_robust_list(0x555568f86660, 24 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5290] <... set_robust_list resumed>) = 0 [pid 5289] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5291 attached [pid 5291] set_robust_list(0x555568f86660, 24 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5289] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5291 [pid 5291] <... set_robust_list resumed>) = 0 [pid 5290] <... prctl resumed>) = 0 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5290] setpgid(0, 0 [pid 5291] <... prctl resumed>) = 0 [pid 5290] <... setpgid resumed>) = 0 [pid 5291] setpgid(0, 0 [pid 5290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5291] <... setpgid resumed>) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5285] +++ exited with 0 +++ [pid 5290] <... openat resumed>) = 3 [pid 5290] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5290] <... write resumed>) = 4 [pid 5290] close(3 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5290] <... close resumed>) = 0 [pid 5290] write(1, "executing program\n", 18 [pid 5287] +++ exited with 0 +++ [pid 5291] <... openat resumed>) = 3 executing program [pid 5291] write(3, "1000", 4 [pid 5290] <... write resumed>) = 18 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5291] <... write resumed>) = 4 [pid 5290] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5291] close(3) = 0 [pid 5290] <... bpf resumed>) = 3 [pid 5290] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5291] write(1, "executing program\n", 18executing program ) = 18 [pid 5291] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5290] <... bpf resumed>) = 4 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5290] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5292 attached ./strace-static-x86_64: Process 5293 attached [pid 5292] set_robust_list(0x555568f86660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5292 [pid 5292] <... set_robust_list resumed>) = 0 [pid 5291] <... bpf resumed>) = 3 [pid 5293] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5293 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5293] <... set_robust_list resumed>) = 0 [pid 5291] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5292] <... prctl resumed>) = 0 [pid 5293] <... prctl resumed>) = 0 [pid 5293] setpgid(0, 0 [pid 5292] setpgid(0, 0 [pid 5291] <... bpf resumed>) = 4 [pid 5293] <... setpgid resumed>) = 0 [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5292] <... setpgid resumed>) = 0 [pid 5291] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5293] <... openat resumed>) = 3 [ 60.634899][ T5224] ? do_syscall_64+0xb6/0x230 [ 60.639551][ T5224] ? do_syscall_64+0xf3/0x230 [ 60.644207][ T5224] ? clear_bhb_loop+0x35/0x90 [ 60.649133][ T5224] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 60.655181][ T5224] [pid 5293] write(3, "1000", 4) = 4 [pid 5292] <... openat resumed>) = 3 [pid 5293] close(3) = 0 [pid 5293] write(1, "executing program\n", 18 [pid 5292] write(3, "1000", 4executing program [pid 5291] <... bpf resumed>) = 5 [pid 5290] <... bpf resumed>) = 5 [pid 5289] <... bpf resumed>) = 5 [pid 5293] <... write resumed>) = 18 [pid 5292] <... write resumed>) = 4 [pid 5291] exit_group(0 [pid 5290] exit_group(0 [pid 5293] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5292] close(3 [pid 5289] exit_group(0 [pid 5293] <... bpf resumed>) = 3 [pid 5292] <... close resumed>) = 0 [pid 5291] <... exit_group resumed>) = ? [pid 5290] <... exit_group resumed>) = ? executing program [pid 5289] <... exit_group resumed>) = ? [pid 5293] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5292] write(1, "executing program\n", 18 [pid 5290] +++ exited with 0 +++ [pid 5291] +++ exited with 0 +++ [pid 5293] <... bpf resumed>) = 4 [pid 5292] <... write resumed>) = 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5292] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5289] +++ exited with 0 +++ [pid 5292] <... bpf resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5293] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5292] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5292] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5294 ./strace-static-x86_64: Process 5294 attached [pid 5293] <... bpf resumed>) = 5 [pid 5292] <... bpf resumed>) = 5 [pid 5292] exit_group(0) = ? [pid 5294] set_robust_list(0x555568f86660, 24 [pid 5293] exit_group(0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5294] <... set_robust_list resumed>) = 0 [pid 5293] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5296 attached ./strace-static-x86_64: Process 5295 attached [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5292] +++ exited with 0 +++ [pid 5296] set_robust_list(0x555568f86660, 24 [pid 5295] set_robust_list(0x555568f86660, 24 [pid 5294] <... prctl resumed>) = 0 [pid 5293] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5295 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5296 [pid 5296] <... set_robust_list resumed>) = 0 [pid 5295] <... set_robust_list resumed>) = 0 [pid 5294] setpgid(0, 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5294] <... setpgid resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5295] <... prctl resumed>) = 0 [pid 5296] <... prctl resumed>) = 0 [pid 5296] setpgid(0, 0 [pid 5295] setpgid(0, 0 [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5296] <... setpgid resumed>) = 0 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5295] <... setpgid resumed>) = 0 [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5294] <... openat resumed>) = 3 [pid 5296] <... openat resumed>) = 3 [pid 5294] write(3, "1000", 4) = 4 [pid 5296] write(3, "1000", 4 [pid 5295] <... openat resumed>) = 3 [pid 5294] close(3 [pid 5295] write(3, "1000", 4 [pid 5294] <... close resumed>) = 0 executing program [pid 5296] <... write resumed>) = 4 [pid 5294] write(1, "executing program\n", 18 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5296] close(3 [pid 5294] <... write resumed>) = 18 [pid 5295] <... write resumed>) = 4 [pid 5296] <... close resumed>) = 0 [pid 5295] close(3 [pid 5294] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5296] write(1, "executing program\n", 18 [pid 5295] <... close resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5296] <... write resumed>) = 18 [pid 5295] write(1, "executing program\n", 18 [pid 5294] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5297 attached executing program [pid 5296] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5295] <... write resumed>) = 18 [pid 5297] set_robust_list(0x555568f86660, 24 [pid 5294] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5296] <... bpf resumed>) = 3 [pid 5295] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5297 [pid 5297] <... set_robust_list resumed>) = 0 [pid 5295] <... bpf resumed>) = 3 [pid 5294] <... bpf resumed>) = 4 [pid 5295] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5298 attached [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5296] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5295] <... bpf resumed>) = 4 [pid 5294] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5298 [pid 5298] set_robust_list(0x555568f86660, 24 [pid 5297] <... prctl resumed>) = 0 [pid 5298] <... set_robust_list resumed>) = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5297] setpgid(0, 0 [pid 5296] <... bpf resumed>) = 4 [pid 5295] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5294] <... bpf resumed>) = 5 [pid 5298] setpgid(0, 0 [pid 5297] <... setpgid resumed>) = 0 [pid 5298] <... setpgid resumed>) = 0 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5295] <... bpf resumed>) = 5 [pid 5294] exit_group(0 [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5296] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5297] <... openat resumed>) = 3 [pid 5294] <... exit_group resumed>) = ? [pid 5298] <... openat resumed>) = 3 [pid 5295] exit_group(0 [pid 5298] write(3, "1000", 4 [pid 5295] <... exit_group resumed>) = ? [pid 5298] <... write resumed>) = 4 [pid 5297] write(3, "1000", 4 [pid 5296] <... bpf resumed>) = 5 [pid 5294] +++ exited with 0 +++ [pid 5297] <... write resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5296] exit_group(0executing program [pid 5297] close(3 [pid 5296] <... exit_group resumed>) = ? [pid 5297] <... close resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5298] close(3) = 0 [pid 5298] write(1, "executing program\n", 18) = 18 [pid 5298] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5297] write(1, "executing program\n", 18 [pid 5296] +++ exited with 0 +++ [pid 5295] +++ exited with 0 +++ [pid 5236] <... restart_syscall resumed>) = 0 [pid 5297] <... write resumed>) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5298] <... bpf resumed>) = 4 [pid 5297] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5297] <... bpf resumed>) = 3 [pid 5297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5298] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5297] <... bpf resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5299 attached [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5299 ./strace-static-x86_64: Process 5300 attached [pid 5299] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5301 attached [pid 5297] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5301] set_robust_list(0x555568f86660, 24 [pid 5300] set_robust_list(0x555568f86660, 24 [pid 5299] <... set_robust_list resumed>) = 0 [pid 5298] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5301 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5300 [pid 5301] <... set_robust_list resumed>) = 0 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5298] exit_group(0 [pid 5297] <... bpf resumed>) = 5 [pid 5301] <... prctl resumed>) = 0 [pid 5299] <... prctl resumed>) = 0 [pid 5301] setpgid(0, 0 [pid 5300] <... prctl resumed>) = 0 [pid 5299] setpgid(0, 0 [pid 5298] <... exit_group resumed>) = ? [pid 5301] <... setpgid resumed>) = 0 [pid 5300] setpgid(0, 0 [pid 5299] <... setpgid resumed>) = 0 [pid 5297] exit_group(0 [pid 5300] <... setpgid resumed>) = 0 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5297] <... exit_group resumed>) = ? [pid 5301] <... openat resumed>) = 3 [pid 5300] <... openat resumed>) = 3 [pid 5300] write(3, "1000", 4 [pid 5301] write(3, "1000", 4 [pid 5299] <... openat resumed>) = 3 [pid 5301] <... write resumed>) = 4 [pid 5300] <... write resumed>) = 4 [pid 5299] write(3, "1000", 4 [pid 5301] close(3 [pid 5300] close(3 [pid 5299] <... write resumed>) = 4 [pid 5301] <... close resumed>) = 0 [pid 5300] <... close resumed>) = 0 [pid 5299] close(3 [pid 5301] write(1, "executing program\n", 18 [pid 5300] write(1, "executing program\n", 18executing program [pid 5299] <... close resumed>) = 0 executing program [pid 5301] <... write resumed>) = 18 [pid 5300] <... write resumed>) = 18 [pid 5299] write(1, "executing program\n", 18executing program [pid 5301] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5300] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5299] <... write resumed>) = 18 [pid 5301] <... bpf resumed>) = 3 [pid 5301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5300] <... bpf resumed>) = 3 [pid 5299] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5301] <... bpf resumed>) = 4 [pid 5301] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5299] <... bpf resumed>) = 3 [pid 5299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5300] <... bpf resumed>) = 4 [pid 5300] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5299] <... bpf resumed>) = 4 [pid 5298] +++ exited with 0 +++ [pid 5297] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5299] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5301] <... bpf resumed>) = 5 [pid 5301] exit_group(0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5300] <... bpf resumed>) = 5 [pid 5299] <... bpf resumed>) = 5 [pid 5301] <... exit_group resumed>) = ? [pid 5300] exit_group(0 [pid 5299] exit_group(0./strace-static-x86_64: Process 5302 attached ./strace-static-x86_64: Process 5303 attached [pid 5303] set_robust_list(0x555568f86660, 24) = 0 [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5303] setpgid(0, 0) = 0 [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5302 [pid 5303] <... openat resumed>) = 3 [pid 5301] +++ exited with 0 +++ [pid 5302] set_robust_list(0x555568f86660, 24 [pid 5300] <... exit_group resumed>) = ? executing program [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5303 [pid 5302] <... set_robust_list resumed>) = 0 [pid 5299] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5303] write(3, "1000", 4) = 4 [pid 5303] close(3) = 0 [pid 5303] write(1, "executing program\n", 18) = 18 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5303] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5302] <... prctl resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5302] setpgid(0, 0) = 0 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5303] <... bpf resumed>) = 3 [pid 5302] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5304 attached [pid 5302] write(3, "1000", 4executing program ) = 4 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5304 [pid 5304] set_robust_list(0x555568f86660, 24 [pid 5302] close(3 [pid 5304] <... set_robust_list resumed>) = 0 [pid 5302] <... close resumed>) = 0 [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5302] write(1, "executing program\n", 18) = 18 [pid 5302] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5299] +++ exited with 0 +++ [pid 5304] <... prctl resumed>) = 0 [pid 5300] +++ exited with 0 +++ [pid 5304] setpgid(0, 0 [pid 5303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5302] <... bpf resumed>) = 3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5304] <... setpgid resumed>) = 0 [pid 5303] <... bpf resumed>) = 4 [pid 5302] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5303] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5302] <... bpf resumed>) = 4 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5302] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5304] <... openat resumed>) = 3 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5304] write(3, "1000", 4) = 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5305 attached [pid 5304] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5305 ./strace-static-x86_64: Process 5306 attached [pid 5305] set_robust_list(0x555568f86660, 24 [pid 5304] <... close resumed>) = 0 [pid 5303] <... bpf resumed>) = 5 [pid 5302] <... bpf resumed>) = 5 [pid 5304] write(1, "executing program\n", 18executing program [pid 5306] set_robust_list(0x555568f86660, 24 [pid 5305] <... set_robust_list resumed>) = 0 [pid 5303] exit_group(0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5306 [pid 5306] <... set_robust_list resumed>) = 0 [pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5304] <... write resumed>) = 18 [pid 5303] <... exit_group resumed>) = ? [pid 5302] exit_group(0 [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5305] <... prctl resumed>) = 0 [pid 5304] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5302] <... exit_group resumed>) = ? [pid 5306] <... prctl resumed>) = 0 [pid 5305] setpgid(0, 0 [pid 5304] <... bpf resumed>) = 3 [pid 5306] setpgid(0, 0 [pid 5305] <... setpgid resumed>) = 0 [pid 5306] <... setpgid resumed>) = 0 [pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5305] <... openat resumed>) = 3 [pid 5306] <... openat resumed>) = 3 [pid 5305] write(3, "1000", 4) = 4 [pid 5306] write(3, "1000", 4 [pid 5305] close(3 [pid 5306] <... write resumed>) = 4 [pid 5305] <... close resumed>) = 0 [pid 5306] close(3executing program [pid 5305] write(1, "executing program\n", 18 [pid 5306] <... close resumed>) = 0 executing program [pid 5306] write(1, "executing program\n", 18 [pid 5305] <... write resumed>) = 18 [pid 5304] <... bpf resumed>) = 4 [pid 5306] <... write resumed>) = 18 [pid 5305] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5306] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5304] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5306] <... bpf resumed>) = 3 [pid 5305] <... bpf resumed>) = 3 [pid 5303] +++ exited with 0 +++ [pid 5302] +++ exited with 0 +++ [pid 5306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5306] <... bpf resumed>) = 4 [pid 5306] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5305] <... bpf resumed>) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5304] <... bpf resumed>) = 5 [pid 5306] <... bpf resumed>) = 5 [pid 5305] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5307 attached ./strace-static-x86_64: Process 5308 attached [pid 5306] exit_group(0 [pid 5305] <... bpf resumed>) = 5 [pid 5304] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5307 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5308 [pid 5308] set_robust_list(0x555568f86660, 24 [pid 5307] set_robust_list(0x555568f86660, 24 [pid 5306] <... exit_group resumed>) = ? [pid 5305] exit_group(0 [pid 5304] <... exit_group resumed>) = ? [pid 5308] <... set_robust_list resumed>) = 0 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5307] <... set_robust_list resumed>) = 0 [pid 5308] <... prctl resumed>) = 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5308] setpgid(0, 0 [pid 5307] <... prctl resumed>) = 0 [pid 5308] <... setpgid resumed>) = 0 [pid 5307] setpgid(0, 0 [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5307] <... setpgid resumed>) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5308] <... openat resumed>) = 3 [pid 5306] +++ exited with 0 +++ [pid 5305] <... exit_group resumed>) = ? [pid 5307] <... openat resumed>) = 3 [pid 5308] write(3, "1000", 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5308] <... write resumed>) = 4 [pid 5307] write(3, "1000", 4 [pid 5308] close(3 [pid 5307] <... write resumed>) = 4 [pid 5308] <... close resumed>) = 0 [pid 5307] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program executing program [pid 5308] write(1, "executing program\n", 18 [pid 5307] <... close resumed>) = 0 [pid 5307] write(1, "executing program\n", 18 [pid 5308] <... write resumed>) = 18 [pid 5307] <... write resumed>) = 18 [pid 5308] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5307] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5308] <... bpf resumed>) = 3 [pid 5308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5309 attached ) = 4 [pid 5307] <... bpf resumed>) = 3 [pid 5307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5309] set_robust_list(0x555568f86660, 24 [pid 5308] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5305] +++ exited with 0 +++ [pid 5304] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5309 [pid 5309] <... set_robust_list resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5307] <... bpf resumed>) = 4 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5307] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5309] setpgid(0, 0) = 0 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5309] write(3, "1000", 4) = 4 [pid 5309] close(3) = 0 [pid 5309] write(1, "executing program\n", 18executing program ) = 18 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5309] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5309] <... bpf resumed>) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5310 attached [pid 5309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5310] set_robust_list(0x555568f86660, 24) = 0 ./strace-static-x86_64: Process 5311 attached [pid 5311] set_robust_list(0x555568f86660, 24 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] <... bpf resumed>) = 4 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5310 [pid 5311] <... set_robust_list resumed>) = 0 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5311 [pid 5310] <... prctl resumed>) = 0 [pid 5311] <... prctl resumed>) = 0 [pid 5308] <... bpf resumed>) = 5 [pid 5307] <... bpf resumed>) = 5 [pid 5311] setpgid(0, 0 [pid 5310] setpgid(0, 0 [pid 5309] <... bpf resumed>) = 5 [pid 5308] exit_group(0 [pid 5311] <... setpgid resumed>) = 0 [pid 5310] <... setpgid resumed>) = 0 [pid 5309] exit_group(0 [pid 5307] exit_group(0 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] <... exit_group resumed>) = ? [pid 5308] <... exit_group resumed>) = ? [pid 5307] <... exit_group resumed>) = ? [pid 5311] <... openat resumed>) = 3 [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] +++ exited with 0 +++ [pid 5311] write(3, "1000", 4 [pid 5310] <... openat resumed>) = 3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5311] <... write resumed>) = 4 [pid 5310] write(3, "1000", 4 [pid 5311] close(3 [pid 5310] <... write resumed>) = 4 [pid 5311] <... close resumed>) = 0 [pid 5310] close(3 [pid 5308] +++ exited with 0 +++ [pid 5311] write(1, "executing program\n", 18executing program ) = 18 [pid 5310] <... close resumed>) = 0 [pid 5311] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5310] write(1, "executing program\n", 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5312 attached [pid 5311] <... bpf resumed>) = 3 [pid 5310] <... write resumed>) = 18 [pid 5307] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5310] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5312] set_robust_list(0x555568f86660, 24 [pid 5232] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5312] <... set_robust_list resumed>) = 0 [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5311] <... bpf resumed>) = 4 [pid 5310] <... bpf resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5312 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5313 attached [pid 5312] <... prctl resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5312] setpgid(0, 0 [pid 5313] set_robust_list(0x555568f86660, 24 [pid 5310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5314 attached [pid 5313] <... set_robust_list resumed>) = 0 [pid 5312] <... setpgid resumed>) = 0 [pid 5311] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5310] <... bpf resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5313 [pid 5314] set_robust_list(0x555568f86660, 24 [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5311] <... bpf resumed>) = 5 [pid 5314] <... set_robust_list resumed>) = 0 [pid 5313] <... prctl resumed>) = 0 [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5313] setpgid(0, 0 [pid 5312] <... openat resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5314 [pid 5313] <... setpgid resumed>) = 0 [pid 5312] write(3, "1000", 4 [pid 5314] <... prctl resumed>) = 0 [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] <... write resumed>) = 4 [pid 5311] exit_group(0 [pid 5310] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5314] setpgid(0, 0 [pid 5311] <... exit_group resumed>) = ? [pid 5314] <... setpgid resumed>) = 0 [pid 5313] <... openat resumed>) = 3 [pid 5312] close(3 [pid 5310] <... bpf resumed>) = 5 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5313] write(3, "1000", 4 [pid 5312] <... close resumed>) = 0 [pid 5310] exit_group(0executing program [pid 5313] <... write resumed>) = 4 [pid 5312] write(1, "executing program\n", 18) = 18 [pid 5313] close(3 [pid 5312] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5313] <... close resumed>) = 0 [pid 5314] write(3, "1000", 4 [pid 5313] write(1, "executing program\n", 18 [pid 5310] <... exit_group resumed>) = ? executing program [pid 5314] <... write resumed>) = 4 [pid 5313] <... write resumed>) = 18 [pid 5312] <... bpf resumed>) = 3 [pid 5314] close(3) = 0 [pid 5313] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5314] write(1, "executing program\n", 18 [pid 5313] <... bpf resumed>) = 3 [pid 5314] <... write resumed>) = 18 [pid 5313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5314] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5312] <... bpf resumed>) = 4 [pid 5314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5313] <... bpf resumed>) = 4 [pid 5312] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5311] +++ exited with 0 +++ [pid 5310] +++ exited with 0 +++ [pid 5313] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5314] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5314] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5315 attached [pid 5314] <... bpf resumed>) = 5 [pid 5313] <... bpf resumed>) = 5 [pid 5312] <... bpf resumed>) = 5 [pid 5315] set_robust_list(0x555568f86660, 24 [pid 5313] exit_group(0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5314] exit_group(0 [pid 5312] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5315 [pid 5312] <... exit_group resumed>) = ? [pid 5315] <... set_robust_list resumed>) = 0 [pid 5313] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5316 attached [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5314] <... exit_group resumed>) = ? [pid 5312] +++ exited with 0 +++ [pid 5316] set_robust_list(0x555568f86660, 24 [pid 5315] <... prctl resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5316 [pid 5315] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5316] <... set_robust_list resumed>) = 0 [pid 5315] <... setpgid resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5316] setpgid(0, 0) = 0 [pid 5315] <... openat resumed>) = 3 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5315] write(3, "1000", 4 [pid 5314] +++ exited with 0 +++ [pid 5313] +++ exited with 0 +++ [pid 5236] <... restart_syscall resumed>) = 0 [pid 5316] <... openat resumed>) = 3 [pid 5315] <... write resumed>) = 4 [pid 5315] close(3) = 0 executing program [pid 5315] write(1, "executing program\n", 18) = 18 [pid 5316] write(3, "1000", 4 [pid 5315] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5316] <... write resumed>) = 4 [pid 5316] close(3 [pid 5315] <... bpf resumed>) = 3 [pid 5316] <... close resumed>) = 0 executing program [pid 5316] write(1, "executing program\n", 18) = 18 [pid 5316] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5316] <... bpf resumed>) = 3 [pid 5316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5315] <... bpf resumed>) = 4 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5316] <... bpf resumed>) = 4 [pid 5315] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5316] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5318 attached ./strace-static-x86_64: Process 5317 attached [pid 5315] <... bpf resumed>) = 5 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5318] set_robust_list(0x555568f86660, 24 [pid 5317] set_robust_list(0x555568f86660, 24 [pid 5316] <... bpf resumed>) = 5 [pid 5315] exit_group(0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5317 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5318 ./strace-static-x86_64: Process 5319 attached [pid 5318] <... set_robust_list resumed>) = 0 [pid 5317] <... set_robust_list resumed>) = 0 [pid 5316] exit_group(0 [pid 5315] <... exit_group resumed>) = ? [pid 5319] set_robust_list(0x555568f86660, 24 [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5316] <... exit_group resumed>) = ? [pid 5318] <... prctl resumed>) = 0 [pid 5317] <... prctl resumed>) = 0 [pid 5318] setpgid(0, 0 [pid 5317] setpgid(0, 0) = 0 [pid 5318] <... setpgid resumed>) = 0 [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5319] <... set_robust_list resumed>) = 0 [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] <... openat resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5319 [pid 5319] <... prctl resumed>) = 0 [pid 5318] <... openat resumed>) = 3 [pid 5319] setpgid(0, 0) = 0 [pid 5318] write(3, "1000", 4 [pid 5317] write(3, "1000", 4 [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5318] <... write resumed>) = 4 [pid 5317] <... write resumed>) = 4 [pid 5318] close(3) = 0 [pid 5317] close(3 [pid 5318] write(1, "executing program\n", 18executing program [pid 5319] <... openat resumed>) = 3 [pid 5318] <... write resumed>) = 18 [pid 5317] <... close resumed>) = 0 [pid 5316] +++ exited with 0 +++ [pid 5315] +++ exited with 0 +++ executing program [pid 5318] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5317] write(1, "executing program\n", 18 [pid 5318] <... bpf resumed>) = 3 [pid 5317] <... write resumed>) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5319] write(3, "1000", 4 [pid 5318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5317] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5319] <... write resumed>) = 4 [pid 5318] <... bpf resumed>) = 4 [pid 5319] close(3) = 0 [pid 5319] write(1, "executing program\n", 18executing program [pid 5318] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5319] <... write resumed>) = 18 [pid 5319] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5317] <... bpf resumed>) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5319] <... bpf resumed>) = 3 [pid 5319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5320 attached [pid 5320] set_robust_list(0x555568f86660, 24) = 0 [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5320 ./strace-static-x86_64: Process 5321 attached [pid 5320] <... prctl resumed>) = 0 [pid 5321] set_robust_list(0x555568f86660, 24 [pid 5320] setpgid(0, 0 [pid 5319] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5321] <... set_robust_list resumed>) = 0 [pid 5320] <... setpgid resumed>) = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] <... bpf resumed>) = 4 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5321 [pid 5321] <... prctl resumed>) = 0 [pid 5320] <... openat resumed>) = 3 [pid 5317] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5321] setpgid(0, 0) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5320] write(3, "1000", 4 [pid 5319] <... bpf resumed>) = 5 [pid 5318] <... bpf resumed>) = 5 [pid 5317] <... bpf resumed>) = 5 [pid 5321] <... openat resumed>) = 3 [pid 5320] <... write resumed>) = 4 [pid 5321] write(3, "1000", 4 [pid 5320] close(3 [pid 5319] exit_group(0 [pid 5317] exit_group(0 [pid 5321] <... write resumed>) = 4 [pid 5320] <... close resumed>) = 0 [pid 5319] <... exit_group resumed>) = ? executing program executing program [pid 5318] exit_group(0 [pid 5321] close(3 [pid 5320] write(1, "executing program\n", 18 [pid 5317] <... exit_group resumed>) = ? [pid 5321] <... close resumed>) = 0 [pid 5320] <... write resumed>) = 18 [pid 5321] write(1, "executing program\n", 18) = 18 [pid 5320] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5319] +++ exited with 0 +++ [pid 5318] <... exit_group resumed>) = ? [pid 5317] +++ exited with 0 +++ [pid 5321] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5321] <... bpf resumed>) = 3 [pid 5320] <... bpf resumed>) = 3 [pid 5321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5321] <... bpf resumed>) = 4 [pid 5320] <... bpf resumed>) = 4 [pid 5318] +++ exited with 0 +++ [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5320] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5321] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... restart_syscall resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5323 attached ./strace-static-x86_64: Process 5322 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5322 [pid 5323] set_robust_list(0x555568f86660, 24 [pid 5322] set_robust_list(0x555568f86660, 24) = 0 [pid 5320] <... bpf resumed>) = 5 [pid 5322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5323] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5324 attached [pid 5322] <... prctl resumed>) = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5324] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5324 [pid 5324] <... set_robust_list resumed>) = 0 [pid 5323] <... prctl resumed>) = 0 [pid 5322] setpgid(0, 0 [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5321] <... bpf resumed>) = 5 [pid 5320] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5323 [pid 5324] <... prctl resumed>) = 0 [pid 5323] setpgid(0, 0 [pid 5322] <... setpgid resumed>) = 0 [pid 5324] setpgid(0, 0) = 0 [pid 5323] <... setpgid resumed>) = 0 [pid 5322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5321] exit_group(0 [pid 5320] <... exit_group resumed>) = ? [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5322] <... openat resumed>) = 3 [pid 5321] <... exit_group resumed>) = ? [pid 5324] <... openat resumed>) = 3 [pid 5323] <... openat resumed>) = 3 [pid 5322] write(3, "1000", 4 [pid 5324] write(3, "1000", 4 [pid 5323] write(3, "1000", 4 [pid 5322] <... write resumed>) = 4 [pid 5324] <... write resumed>) = 4 [pid 5323] <... write resumed>) = 4 [pid 5322] close(3 [pid 5324] close(3 [pid 5323] close(3 [pid 5322] <... close resumed>) = 0 [pid 5324] <... close resumed>) = 0 [pid 5323] <... close resumed>) = 0 executing program [pid 5322] write(1, "executing program\n", 18executing program [pid 5324] write(1, "executing program\n", 18 executing program [pid 5323] write(1, "executing program\n", 18 [pid 5322] <... write resumed>) = 18 [pid 5324] <... write resumed>) = 18 [pid 5323] <... write resumed>) = 18 [pid 5322] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5324] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5323] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5322] <... bpf resumed>) = 3 [pid 5324] <... bpf resumed>) = 3 [pid 5323] <... bpf resumed>) = 3 [pid 5322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5324] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5322] <... bpf resumed>) = 4 [pid 5324] <... bpf resumed>) = 4 [pid 5323] <... bpf resumed>) = 4 [pid 5324] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5323] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5322] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5320] +++ exited with 0 +++ [pid 5321] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5230] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5325 ./strace-static-x86_64: Process 5325 attached [pid 5325] set_robust_list(0x555568f86660, 24 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5325] <... set_robust_list resumed>) = 0 [pid 5324] <... bpf resumed>) = 5 [pid 5323] <... bpf resumed>) = 5 [pid 5322] <... bpf resumed>) = 5 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5326 attached ) = 0 [pid 5324] exit_group(0 [pid 5323] exit_group(0 [pid 5322] exit_group(0 [pid 5325] setpgid(0, 0) = 0 [pid 5322] <... exit_group resumed>) = ? [pid 5326] set_robust_list(0x555568f86660, 24 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5324] <... exit_group resumed>) = ? [pid 5323] <... exit_group resumed>) = ? [pid 5322] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5326 [pid 5326] <... set_robust_list resumed>) = 0 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5325] <... openat resumed>) = 3 [pid 5325] write(3, "1000", 4) = 4 [pid 5325] close(3) = 0 [pid 5325] write(1, "executing program\n", 18) = 18 [pid 5325] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5326] <... prctl resumed>) = 0 [pid 5324] +++ exited with 0 +++ [pid 5323] +++ exited with 0 +++ [pid 5326] setpgid(0, 0) = 0 [pid 5325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5326] write(3, "1000", 4 [pid 5325] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5326] <... write resumed>) = 4 [pid 5325] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5326] close(3executing program ./strace-static-x86_64: Process 5327 attached ) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5327 ./strace-static-x86_64: Process 5328 attached [pid 5327] set_robust_list(0x555568f86660, 24 [pid 5326] write(1, "executing program\n", 18 [pid 5327] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5328 [pid 5326] <... write resumed>) = 18 [pid 5326] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5328] set_robust_list(0x555568f86660, 24 [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5328] <... set_robust_list resumed>) = 0 [pid 5327] <... prctl resumed>) = 0 [pid 5326] <... bpf resumed>) = 3 [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5327] setpgid(0, 0) = 0 [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5328] <... prctl resumed>) = 0 [pid 5326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5328] setpgid(0, 0executing program ) = 0 [pid 5327] <... openat resumed>) = 3 [pid 5327] write(3, "1000", 4) = 4 [pid 5327] close(3) = 0 [pid 5327] write(1, "executing program\n", 18) = 18 [pid 5327] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5326] <... bpf resumed>) = 4 [pid 5327] <... bpf resumed>) = 3 [pid 5328] <... openat resumed>) = 3 [pid 5327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5328] write(3, "1000", 4 [pid 5326] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5328] <... write resumed>) = 4 [pid 5328] close(3 [pid 5327] <... bpf resumed>) = 4 [pid 5326] <... bpf resumed>) = 5 [pid 5325] <... bpf resumed>) = 5 [pid 5328] <... close resumed>) = 0 [pid 5327] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5328] write(1, "executing program\n", 18 [pid 5326] exit_group(0 [pid 5325] exit_group(0 [pid 5327] <... bpf resumed>) = 5 [pid 5326] <... exit_group resumed>) = ? executing program [pid 5325] <... exit_group resumed>) = ? [pid 5328] <... write resumed>) = 18 [pid 5327] exit_group(0 [pid 5326] +++ exited with 0 +++ [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5327] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5329 attached [pid 5328] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5329] set_robust_list(0x555568f86660, 24 [pid 5328] <... bpf resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5329 [pid 5329] <... set_robust_list resumed>) = 0 [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5329] setpgid(0, 0 [pid 5328] <... bpf resumed>) = 4 [pid 5329] <... setpgid resumed>) = 0 [pid 5325] +++ exited with 0 +++ [pid 5327] +++ exited with 0 +++ ./strace-static-x86_64: Process 5330 attached [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5328] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5330 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5330] set_robust_list(0x555568f86660, 24 [pid 5329] <... openat resumed>) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5330] <... set_robust_list resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5329] write(3, "1000", 4 [pid 5330] setpgid(0, 0 [pid 5329] <... write resumed>) = 4 [pid 5330] <... setpgid resumed>) = 0 executing program [pid 5329] close(3) = 0 [pid 5329] write(1, "executing program\n", 18) = 18 [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5329] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5330] <... openat resumed>) = 3 [pid 5329] <... bpf resumed>) = 3 [pid 5330] write(3, "1000", 4 [pid 5329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5330] <... write resumed>) = 4 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5330] close(3 [pid 5329] <... bpf resumed>) = 4 [pid 5330] <... close resumed>) = 0 executing program [pid 5330] write(1, "executing program\n", 18) = 18 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5331 attached [pid 5330] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5331] set_robust_list(0x555568f86660, 24 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5330] <... bpf resumed>) = 3 [pid 5329] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5328] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5332 attached [pid 5331] <... set_robust_list resumed>) = 0 [pid 5330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5329] <... bpf resumed>) = 5 [pid 5328] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5331 [pid 5332] set_robust_list(0x555568f86660, 24 [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5330] <... bpf resumed>) = 4 [pid 5329] exit_group(0 [pid 5328] <... exit_group resumed>) = ? [pid 5332] <... set_robust_list resumed>) = 0 [pid 5331] <... prctl resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5332 [pid 5329] <... exit_group resumed>) = ? [pid 5332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5331] setpgid(0, 0 [pid 5329] +++ exited with 0 +++ [pid 5332] <... prctl resumed>) = 0 [pid 5331] <... setpgid resumed>) = 0 [pid 5332] setpgid(0, 0) = 0 [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5330] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5331] <... openat resumed>) = 3 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5330] <... bpf resumed>) = 5 [pid 5332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5331] write(3, "1000", 4 [pid 5330] exit_group(0 [pid 5332] write(3, "1000", 4executing program ) = 4 [pid 5332] close(3) = 0 [pid 5332] write(1, "executing program\n", 18) = 18 [pid 5332] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5331] <... write resumed>) = 4 [pid 5330] <... exit_group resumed>) = ? [pid 5331] close(3 [pid 5332] <... bpf resumed>) = 3 [pid 5332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5331] <... close resumed>) = 0 [pid 5331] write(1, "executing program\n", 18 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5332] <... bpf resumed>) = 4 executing program [pid 5332] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5331] <... write resumed>) = 18 [pid 5331] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5331] <... bpf resumed>) = 3 [pid 5331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5333 attached [pid 5333] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5333 [pid 5333] <... set_robust_list resumed>) = 0 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5331] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5333] <... prctl resumed>) = 0 [pid 5333] setpgid(0, 0) = 0 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5333] write(3, "1000", 4) = 4 [pid 5333] close(3) = 0 executing program [pid 5333] write(1, "executing program\n", 18) = 18 [pid 5333] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5333] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5328] +++ exited with 0 +++ [pid 5330] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5328, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5334 attached ./strace-static-x86_64: Process 5335 attached [pid 5334] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5334 [pid 5334] <... set_robust_list resumed>) = 0 [pid 5335] set_robust_list(0x555568f86660, 24 [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5334] setpgid(0, 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5334] <... setpgid resumed>) = 0 [pid 5335] <... prctl resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5335 [pid 5335] setpgid(0, 0 [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5333] <... bpf resumed>) = 5 [pid 5332] <... bpf resumed>) = 5 [pid 5331] <... bpf resumed>) = 5 [pid 5335] <... setpgid resumed>) = 0 [pid 5334] <... openat resumed>) = 3 [pid 5333] exit_group(0 [pid 5331] exit_group(0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5332] exit_group(0 [pid 5335] <... openat resumed>) = 3 [pid 5334] write(3, "1000", 4 [pid 5333] <... exit_group resumed>) = ? [pid 5332] <... exit_group resumed>) = ? [pid 5331] <... exit_group resumed>) = ? [pid 5334] <... write resumed>) = 4 [pid 5333] +++ exited with 0 +++ [pid 5332] +++ exited with 0 +++ [pid 5331] +++ exited with 0 +++ [pid 5335] write(3, "1000", 4 [pid 5334] close(3 [pid 5335] <... write resumed>) = 4 [pid 5334] <... close resumed>) = 0 executing program [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5335] close(3 [pid 5334] write(1, "executing program\n", 18 [pid 5335] <... close resumed>) = 0 executing program [pid 5335] write(1, "executing program\n", 18 [pid 5334] <... write resumed>) = 18 [pid 5335] <... write resumed>) = 18 [pid 5334] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5332, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5335] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5334] <... bpf resumed>) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5335] <... bpf resumed>) = 3 [pid 5334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5334] <... bpf resumed>) = 4 [pid 5334] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5335] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5334] <... bpf resumed>) = 5 [pid 5335] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5335] exit_group(0 [pid 5334] exit_group(0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5335] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5337 attached ./strace-static-x86_64: Process 5336 attached [pid 5334] <... exit_group resumed>) = ? [pid 5336] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5338 attached [pid 5337] set_robust_list(0x555568f86660, 24 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] +++ exited with 0 +++ [pid 5334] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5337 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5336 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5338 [pid 5338] set_robust_list(0x555568f86660, 24 [pid 5337] <... set_robust_list resumed>) = 0 [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5337] setpgid(0, 0 [pid 5336] <... prctl resumed>) = 0 [pid 5337] <... setpgid resumed>) = 0 [pid 5336] setpgid(0, 0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5336] <... setpgid resumed>) = 0 [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5338] <... set_robust_list resumed>) = 0 [pid 5337] <... openat resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5337] write(3, "1000", 4 [pid 5336] <... openat resumed>) = 3 [pid 5337] <... write resumed>) = 4 [pid 5337] close(3executing program ) = 0 [pid 5336] write(3, "1000", 4 [pid 5337] write(1, "executing program\n", 18) = 18 [pid 5336] <... write resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5336] close(3./strace-static-x86_64: Process 5339 attached [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] <... bpf resumed>) = 3 [pid 5336] <... close resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5339 [pid 5339] set_robust_list(0x555568f86660, 24 [pid 5338] <... prctl resumed>) = 0 executing program [pid 5337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5336] write(1, "executing program\n", 18 [pid 5339] <... set_robust_list resumed>) = 0 [pid 5338] setpgid(0, 0 [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5338] <... setpgid resumed>) = 0 [pid 5337] <... bpf resumed>) = 4 [pid 5336] <... write resumed>) = 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5336] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5337] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5336] <... bpf resumed>) = 3 [pid 5339] <... prctl resumed>) = 0 [pid 5337] <... bpf resumed>) = 5 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5339] setpgid(0, 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5340 [pid 5339] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5340 attached [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5337] exit_group(0 [pid 5336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5340] set_robust_list(0x555568f86660, 24 [pid 5339] <... openat resumed>) = 3 [pid 5338] <... openat resumed>) = 3 [pid 5340] <... set_robust_list resumed>) = 0 [pid 5339] write(3, "1000", 4 [pid 5338] write(3, "1000", 4 [pid 5337] <... exit_group resumed>) = ? [pid 5336] <... bpf resumed>) = 4 executing program [pid 5339] <... write resumed>) = 4 [pid 5338] <... write resumed>) = 4 [pid 5339] close(3) = 0 [pid 5339] write(1, "executing program\n", 18) = 18 [pid 5338] close(3 [pid 5339] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5337] +++ exited with 0 +++ [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5336] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5340] <... prctl resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5340] setpgid(0, 0 [pid 5339] <... bpf resumed>) = 3 [pid 5338] <... close resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5340] <... setpgid resumed>) = 0 [pid 5339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5338] write(1, "executing program\n", 18 [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] <... restart_syscall resumed>) = 0 [pid 5338] <... write resumed>) = 18 [pid 5340] <... openat resumed>) = 3 [pid 5339] <... bpf resumed>) = 4 [pid 5338] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5340] write(3, "1000", 4 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5340] <... write resumed>) = 4 [pid 5339] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5338] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5341 attached [pid 5340] close(3executing program [pid 5341] set_robust_list(0x555568f86660, 24 [pid 5340] <... close resumed>) = 0 [pid 5341] <... set_robust_list resumed>) = 0 [pid 5340] write(1, "executing program\n", 18 [pid 5338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5341 [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5340] <... write resumed>) = 18 [pid 5340] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5341] <... prctl resumed>) = 0 [pid 5340] <... bpf resumed>) = 3 [pid 5341] setpgid(0, 0 [pid 5340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5341] <... setpgid resumed>) = 0 [pid 5340] <... bpf resumed>) = 4 [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5338] <... bpf resumed>) = 4 [pid 5338] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5341] <... openat resumed>) = 3 [pid 5340] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5339] <... bpf resumed>) = 5 [pid 5338] <... bpf resumed>) = 5 [pid 5336] <... bpf resumed>) = 5 [pid 5341] write(3, "1000", 4 [pid 5340] <... bpf resumed>) = 5 [pid 5338] exit_group(0 [pid 5336] exit_group(0 [pid 5339] exit_group(0 [pid 5341] <... write resumed>) = 4 [pid 5340] exit_group(0 [pid 5336] <... exit_group resumed>) = ? executing program [pid 5341] close(3 [pid 5340] <... exit_group resumed>) = ? [pid 5339] <... exit_group resumed>) = ? [pid 5338] <... exit_group resumed>) = ? [pid 5341] <... close resumed>) = 0 [pid 5341] write(1, "executing program\n", 18) = 18 [pid 5338] +++ exited with 0 +++ [pid 5336] +++ exited with 0 +++ [pid 5341] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5341] <... bpf resumed>) = 4 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5341] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5342 attached [pid 5340] +++ exited with 0 +++ [pid 5339] +++ exited with 0 +++ ./strace-static-x86_64: Process 5343 attached [pid 5342] set_robust_list(0x555568f86660, 24 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5342 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5343 [pid 5343] set_robust_list(0x555568f86660, 24 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5343] <... set_robust_list resumed>) = 0 [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5342] <... prctl resumed>) = 0 [pid 5341] <... bpf resumed>) = 5 [pid 5342] setpgid(0, 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5343] <... prctl resumed>) = 0 [pid 5342] <... setpgid resumed>) = 0 [pid 5341] exit_group(0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5344 attached [pid 5343] setpgid(0, 0./strace-static-x86_64: Process 5345 attached [pid 5344] set_robust_list(0x555568f86660, 24 [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5341] <... exit_group resumed>) = ? [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5344 [pid 5345] set_robust_list(0x555568f86660, 24 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5343] <... setpgid resumed>) = 0 [pid 5342] <... openat resumed>) = 3 [pid 5345] <... set_robust_list resumed>) = 0 [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5343] <... openat resumed>) = 3 [pid 5345] <... prctl resumed>) = 0 [pid 5342] write(3, "1000", 4 [pid 5345] setpgid(0, 0 [pid 5342] <... write resumed>) = 4 [pid 5345] <... setpgid resumed>) = 0 [pid 5343] write(3, "1000", 4 [pid 5342] close(3 [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5343] <... write resumed>) = 4 [pid 5342] <... close resumed>) = 0 [pid 5341] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5345 [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5345] <... openat resumed>) = 3 [pid 5344] setpgid(0, 0 [pid 5343] close(3executing program [pid 5342] write(1, "executing program\n", 18 [pid 5345] write(3, "1000", 4 [pid 5344] <... setpgid resumed>) = 0 [pid 5343] <... close resumed>) = 0 [pid 5342] <... write resumed>) = 18 [pid 5345] <... write resumed>) = 4 executing program [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5343] write(1, "executing program\n", 18 [pid 5342] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5345] close(3 [pid 5344] <... openat resumed>) = 3 [pid 5343] <... write resumed>) = 18 [pid 5345] <... close resumed>) = 0 [pid 5344] write(3, "1000", 4 [pid 5343] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5342] <... bpf resumed>) = 3 executing program [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5345] write(1, "executing program\n", 18 [pid 5344] <... write resumed>) = 4 [pid 5343] <... bpf resumed>) = 3 [pid 5345] <... write resumed>) = 18 [pid 5343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5345] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5344] close(3./strace-static-x86_64: Process 5346 attached [pid 5345] <... bpf resumed>) = 3 [pid 5344] <... close resumed>) = 0 [pid 5343] <... bpf resumed>) = 4 [pid 5342] <... bpf resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5346 [pid 5346] set_robust_list(0x555568f86660, 24 [pid 5345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5344] write(1, "executing program\n", 18 [pid 5346] <... set_robust_list resumed>) = 0 executing program [pid 5345] <... bpf resumed>) = 4 [pid 5344] <... write resumed>) = 18 [pid 5346] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5342] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5344] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5346] <... prctl resumed>) = 0 [pid 5345] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5344] <... bpf resumed>) = 3 [pid 5343] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5346] setpgid(0, 0 [pid 5344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5346] <... setpgid resumed>) = 0 [pid 5346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5346] write(3, "1000", 4 [pid 5345] <... bpf resumed>) = 5 [pid 5344] <... bpf resumed>) = 4 [pid 5343] <... bpf resumed>) = 5 [pid 5342] <... bpf resumed>) = 5 [pid 5346] <... write resumed>) = 4 [pid 5345] exit_group(0 [pid 5343] exit_group(0 [pid 5342] exit_group(0 [pid 5346] close(3 [pid 5343] <... exit_group resumed>) = ? [pid 5346] <... close resumed>) = 0 [pid 5345] <... exit_group resumed>) = ? [pid 5344] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5343] +++ exited with 0 +++ [pid 5342] <... exit_group resumed>) = ? executing program [pid 5346] write(1, "executing program\n", 18 [pid 5345] +++ exited with 0 +++ [pid 5344] <... bpf resumed>) = 5 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5346] <... write resumed>) = 18 [pid 5344] exit_group(0 [pid 5346] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5344] <... exit_group resumed>) = ? [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5347 attached [pid 5347] set_robust_list(0x555568f86660, 24 [pid 5346] <... bpf resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5347 [pid 5347] <... set_robust_list resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5346] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5348 attached [pid 5347] <... prctl resumed>) = 0 [pid 5344] +++ exited with 0 +++ [pid 5342] +++ exited with 0 +++ [pid 5348] set_robust_list(0x555568f86660, 24 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5348] <... set_robust_list resumed>) = 0 [pid 5348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5347] setpgid(0, 0) = 0 [pid 5348] <... prctl resumed>) = 0 [pid 5348] setpgid(0, 0) = 0 [pid 5348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5348 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5348] <... openat resumed>) = 3 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5348] write(3, "1000", 4./strace-static-x86_64: Process 5350 attached ./strace-static-x86_64: Process 5349 attached [pid 5347] <... openat resumed>) = 3 [pid 5346] <... bpf resumed>) = 5 [pid 5348] <... write resumed>) = 4 [pid 5347] write(3, "1000", 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5350 [pid 5348] close(3 [pid 5347] <... write resumed>) = 4 [pid 5348] <... close resumed>) = 0 executing program [pid 5347] close(3 [pid 5348] write(1, "executing program\n", 18 [pid 5347] <... close resumed>) = 0 [pid 5348] <... write resumed>) = 18 executing program [pid 5348] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5347] write(1, "executing program\n", 18) = 18 [pid 5350] set_robust_list(0x555568f86660, 24 [pid 5349] set_robust_list(0x555568f86660, 24 [pid 5348] <... bpf resumed>) = 3 [pid 5347] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5346] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5349 [pid 5350] <... set_robust_list resumed>) = 0 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] <... set_robust_list resumed>) = 0 [pid 5348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5347] <... bpf resumed>) = 3 [pid 5346] <... exit_group resumed>) = ? [pid 5350] <... prctl resumed>) = 0 [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5348] <... bpf resumed>) = 4 [pid 5347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5350] setpgid(0, 0 [pid 5349] <... prctl resumed>) = 0 [pid 5348] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5347] <... bpf resumed>) = 4 [pid 5349] setpgid(0, 0 [pid 5348] <... bpf resumed>) = 5 [pid 5349] <... setpgid resumed>) = 0 [pid 5348] exit_group(0 [pid 5350] <... setpgid resumed>) = 0 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5348] <... exit_group resumed>) = ? [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] <... openat resumed>) = 3 [pid 5347] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5350] <... openat resumed>) = 3 [pid 5349] write(3, "1000", 4) = 4 [pid 5349] close(3) = 0 executing program [pid 5349] write(1, "executing program\n", 18 [pid 5350] write(3, "1000", 4 [pid 5349] <... write resumed>) = 18 [pid 5350] <... write resumed>) = 4 [pid 5349] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5350] close(3 [pid 5349] <... bpf resumed>) = 3 executing program [pid 5350] <... close resumed>) = 0 [pid 5350] write(1, "executing program\n", 18) = 18 [pid 5350] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5350] <... bpf resumed>) = 3 [pid 5349] <... bpf resumed>) = 4 [pid 5350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5349] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5350] <... bpf resumed>) = 4 [pid 5350] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5348] +++ exited with 0 +++ [pid 5346] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5348, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5351 attached [pid 5350] <... bpf resumed>) = 5 [pid 5349] <... bpf resumed>) = 5 [pid 5347] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] set_robust_list(0x555568f86660, 24 [pid 5349] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5351 [pid 5351] <... set_robust_list resumed>) = 0 [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] <... exit_group resumed>) = ? [pid 5351] <... prctl resumed>) = 0 [pid 5350] exit_group(0 [pid 5349] +++ exited with 0 +++ [pid 5347] exit_group(0 [pid 5351] setpgid(0, 0) = 0 [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5352 attached [pid 5350] <... exit_group resumed>) = ? [pid 5347] <... exit_group resumed>) = ? [pid 5351] <... openat resumed>) = 3 [pid 5352] set_robust_list(0x555568f86660, 24 [pid 5350] +++ exited with 0 +++ [pid 5347] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5352 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5352] <... set_robust_list resumed>) = 0 [pid 5351] write(3, "1000", 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5351] <... write resumed>) = 4 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5351] close(3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5352] <... prctl resumed>) = 0 [pid 5351] <... close resumed>) = 0 [pid 5352] setpgid(0, 0 [pid 5351] write(1, "executing program\n", 18executing program [pid 5352] <... setpgid resumed>) = 0 [pid 5351] <... write resumed>) = 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5351] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5354 attached ./strace-static-x86_64: Process 5353 attached [pid 5354] set_robust_list(0x555568f86660, 24 [pid 5352] <... openat resumed>) = 3 [pid 5351] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5354 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5353 [pid 5354] <... set_robust_list resumed>) = 0 [pid 5353] set_robust_list(0x555568f86660, 24 [pid 5352] write(3, "1000", 4 [pid 5351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5353] <... set_robust_list resumed>) = 0 [pid 5352] <... write resumed>) = 4 [pid 5354] <... prctl resumed>) = 0 [pid 5354] setpgid(0, 0 [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 5352] close(3 [pid 5354] <... setpgid resumed>) = 0 [pid 5354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5353] <... prctl resumed>) = 0 [pid 5352] <... close resumed>) = 0 [pid 5353] setpgid(0, 0 [pid 5354] <... openat resumed>) = 3 [pid 5352] write(1, "executing program\n", 18 [pid 5351] <... bpf resumed>) = 4 [pid 5353] <... setpgid resumed>) = 0 [pid 5352] <... write resumed>) = 18 [pid 5354] write(3, "1000", 4) = 4 [pid 5354] close(3 executing program [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5352] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5351] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5354] <... close resumed>) = 0 [pid 5353] <... openat resumed>) = 3 [pid 5352] <... bpf resumed>) = 3 [pid 5354] write(1, "executing program\n", 18) = 18 [pid 5354] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5351] <... bpf resumed>) = 5 [pid 5353] write(3, "1000", 4 [pid 5354] <... bpf resumed>) = 3 [pid 5354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5353] <... write resumed>) = 4 [pid 5352] <... bpf resumed>) = 4 [pid 5351] exit_group(0 [pid 5353] close(3 [pid 5354] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5353] <... close resumed>) = 0 [pid 5352] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5351] <... exit_group resumed>) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5354] <... bpf resumed>) = 5 [pid 5353] write(1, "executing program\n", 18 [pid 5352] <... bpf resumed>) = 5 [pid 5354] exit_group(0 [pid 5351] +++ exited with 0 +++ ./strace-static-x86_64: Process 5355 attached [pid 5354] <... exit_group resumed>) = ? executing program [pid 5355] set_robust_list(0x555568f86660, 24 [pid 5353] <... write resumed>) = 18 [pid 5352] exit_group(0 [pid 5355] <... set_robust_list resumed>) = 0 [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5353] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5352] <... exit_group resumed>) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5355 [pid 5355] <... prctl resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5355] setpgid(0, 0 [pid 5353] <... bpf resumed>) = 3 [pid 5355] <... setpgid resumed>) = 0 [pid 5353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5353] <... bpf resumed>) = 4 [pid 5355] <... openat resumed>) = 3 [pid 5353] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5355] write(3, "1000", 4) = 4 [pid 5355] close(3) = 0 [pid 5355] write(1, "executing program\n", 18executing program ) = 18 [pid 5355] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5232] <... restart_syscall resumed>) = 0 [pid 5355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5355] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5356 attached [pid 5354] +++ exited with 0 +++ [pid 5352] +++ exited with 0 +++ [pid 5356] set_robust_list(0x555568f86660, 24 [pid 5355] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5356 [pid 5356] <... set_robust_list resumed>) = 0 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5356] setpgid(0, 0 [pid 5355] <... bpf resumed>) = 5 [pid 5353] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5356] <... setpgid resumed>) = 0 [pid 5355] exit_group(0 [pid 5353] exit_group(0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5358 attached [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5355] <... exit_group resumed>) = ? [pid 5353] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5357 attached [pid 5357] set_robust_list(0x555568f86660, 24) = 0 [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5357] setpgid(0, 0) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5358 [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5355] +++ exited with 0 +++ [pid 5357] write(3, "1000", 4 [pid 5358] set_robust_list(0x555568f86660, 24 [pid 5356] <... openat resumed>) = 3 [pid 5353] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5357 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5358] <... set_robust_list resumed>) = 0 [pid 5357] <... write resumed>) = 4 [pid 5356] write(3, "1000", 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5358] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5357] close(3 [pid 5356] <... write resumed>) = 4 [pid 5358] <... prctl resumed>) = 0 [pid 5358] setpgid(0, 0 [pid 5357] <... close resumed>) = 0 [pid 5356] close(3 [pid 5357] write(1, "executing program\n", 18 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5358] <... setpgid resumed>) = 0 executing program [pid 5356] <... close resumed>) = 0 ./strace-static-x86_64: Process 5359 attached [pid 5358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5357] <... write resumed>) = 18 [pid 5356] write(1, "executing program\n", 18executing program [pid 5359] set_robust_list(0x555568f86660, 24 [pid 5357] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5356] <... write resumed>) = 18 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5358] <... openat resumed>) = 3 [pid 5357] <... bpf resumed>) = 3 [pid 5356] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5359 ./strace-static-x86_64: Process 5360 attached [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5358] write(3, "1000", 4 [pid 5357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5356] <... bpf resumed>) = 3 [pid 5360] set_robust_list(0x555568f86660, 24 [pid 5359] <... prctl resumed>) = 0 [pid 5358] <... write resumed>) = 4 [pid 5357] <... bpf resumed>) = 4 [pid 5356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5360] <... set_robust_list resumed>) = 0 [pid 5359] setpgid(0, 0 [pid 5358] close(3 [pid 5356] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5360 [pid 5360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5359] <... setpgid resumed>) = 0 [pid 5358] <... close resumed>) = 0 [pid 5357] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5360] <... prctl resumed>) = 0 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5358] write(1, "executing program\n", 18 [pid 5357] <... bpf resumed>) = 5 [pid 5356] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5360] setpgid(0, 0 [pid 5358] <... write resumed>) = 18 [pid 5359] <... openat resumed>) = 3 [pid 5358] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5360] <... setpgid resumed>) = 0 [pid 5359] write(3, "1000", 4 [pid 5360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5358] <... bpf resumed>) = 3 [pid 5357] exit_group(0 [pid 5356] <... bpf resumed>) = 5 [pid 5359] <... write resumed>) = 4 [pid 5357] <... exit_group resumed>) = ? [pid 5356] exit_group(0 [pid 5360] <... openat resumed>) = 3 [pid 5359] close(3 [pid 5358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5360] write(3, "1000", 4 [pid 5359] <... close resumed>) = 0 [pid 5359] write(1, "executing program\n", 18) = 18 [pid 5360] <... write resumed>) = 4 [pid 5356] <... exit_group resumed>) = ? [pid 5359] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5360] close(3) = 0 [pid 5359] <... bpf resumed>) = 3 [pid 5358] <... bpf resumed>) = 4 [pid 5360] write(1, "executing program\n", 18 executing program [pid 5359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5360] <... write resumed>) = 18 [pid 5358] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5360] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5359] <... bpf resumed>) = 4 [pid 5360] <... bpf resumed>) = 3 [pid 5359] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5360] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5357] +++ exited with 0 +++ [pid 5356] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5361 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5361 ./strace-static-x86_64: Process 5362 attached [pid 5361] set_robust_list(0x555568f86660, 24 [pid 5362] set_robust_list(0x555568f86660, 24 [pid 5361] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5362 [pid 5362] <... set_robust_list resumed>) = 0 [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5362] setpgid(0, 0 [pid 5361] <... prctl resumed>) = 0 [pid 5361] setpgid(0, 0 [pid 5362] <... setpgid resumed>) = 0 [pid 5361] <... setpgid resumed>) = 0 [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5362] write(3, "1000", 4 [pid 5361] write(3, "1000", 4 [pid 5362] <... write resumed>) = 4 [pid 5362] close(3 [pid 5361] <... write resumed>) = 4 [pid 5362] <... close resumed>) = 0 [pid 5361] close(3 [pid 5362] write(1, "executing program\n", 18 [pid 5361] <... close resumed>) = 0 [pid 5362] <... write resumed>) = 18 [pid 5362] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5361] write(1, "executing program\n", 18executing program [pid 5362] <... bpf resumed>) = 3 [pid 5361] <... write resumed>) = 18 [pid 5361] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5359] <... bpf resumed>) = 5 [pid 5358] <... bpf resumed>) = 5 [pid 5362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5360] <... bpf resumed>) = 5 [pid 5359] exit_group(0) = ? [pid 5361] <... bpf resumed>) = 3 [pid 5359] +++ exited with 0 +++ [pid 5362] <... bpf resumed>) = 4 [pid 5358] exit_group(0 [pid 5360] exit_group(0) = ? [pid 5362] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5358] <... exit_group resumed>) = ? [pid 5361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5360] +++ exited with 0 +++ [pid 5358] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5361] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5363 ./strace-static-x86_64: Process 5365 attached ./strace-static-x86_64: Process 5364 attached ./strace-static-x86_64: Process 5363 attached [pid 5362] <... bpf resumed>) = 5 [pid 5361] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5363] set_robust_list(0x555568f86660, 24 [pid 5365] set_robust_list(0x555568f86660, 24 [pid 5364] set_robust_list(0x555568f86660, 24 [pid 5365] <... set_robust_list resumed>) = 0 [pid 5364] <... set_robust_list resumed>) = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] <... prctl resumed>) = 0 [pid 5363] <... set_robust_list resumed>) = 0 [pid 5362] exit_group(0 [pid 5361] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5365 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5364 [pid 5365] setpgid(0, 0 [pid 5364] setpgid(0, 0 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5362] <... exit_group resumed>) = ? [pid 5365] <... setpgid resumed>) = 0 [pid 5364] <... setpgid resumed>) = 0 [pid 5361] exit_group(0 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5365] <... openat resumed>) = 3 [pid 5364] <... openat resumed>) = 3 [pid 5364] write(3, "1000", 4 [pid 5365] write(3, "1000", 4 [pid 5364] <... write resumed>) = 4 [pid 5363] <... prctl resumed>) = 0 [pid 5362] +++ exited with 0 +++ [pid 5361] <... exit_group resumed>) = ? executing program [pid 5365] <... write resumed>) = 4 [pid 5364] close(3 [pid 5363] setpgid(0, 0 [pid 5365] close(3 [pid 5364] <... close resumed>) = 0 [pid 5365] <... close resumed>) = 0 [pid 5364] write(1, "executing program\n", 18 [pid 5363] <... setpgid resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5365] write(1, "executing program\n", 18 [pid 5364] <... write resumed>) = 18 [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5365] <... write resumed>) = 18 [pid 5364] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5365] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5361] +++ exited with 0 +++ [pid 5364] <... bpf resumed>) = 3 [pid 5363] <... openat resumed>) = 3 [pid 5365] <... bpf resumed>) = 3 [pid 5364] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5363] write(3, "1000", 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5363] <... write resumed>) = 4 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5364] <... bpf resumed>) = 4 [pid 5363] close(3) = 0 [pid 5365] <... bpf resumed>) = 4 [pid 5364] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5365] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5363] write(1, "executing program\n", 18executing program ) = 18 [pid 5363] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5365] <... bpf resumed>) = 5 [pid 5364] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5365] exit_group(0 [pid 5364] exit_group(0 [pid 5363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5364] <... exit_group resumed>) = ? [pid 5365] <... exit_group resumed>) = ? [pid 5363] <... bpf resumed>) = 4 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5366 attached [pid 5363] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5366] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5367 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5366 [pid 5367] set_robust_list(0x555568f86660, 24 [pid 5366] <... set_robust_list resumed>) = 0 [pid 5367] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5367 [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5367] <... prctl resumed>) = 0 [pid 5366] <... prctl resumed>) = 0 [pid 5367] setpgid(0, 0 [pid 5366] setpgid(0, 0) = 0 [pid 5367] <... setpgid resumed>) = 0 [pid 5366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5366] <... openat resumed>) = 3 [pid 5366] write(3, "1000", 4 [pid 5364] +++ exited with 0 +++ [pid 5367] <... openat resumed>) = 3 [pid 5366] <... write resumed>) = 4 [pid 5365] +++ exited with 0 +++ [pid 5366] close(3 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5367] write(3, "1000", 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5367] <... write resumed>) = 4 [pid 5366] <... close resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5366] write(1, "executing program\n", 18executing program ) = 18 [pid 5367] close(3) = 0 executing program [pid 5367] write(1, "executing program\n", 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5367] <... write resumed>) = 18 [pid 5366] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5368 attached [pid 5367] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5366] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5368 [pid 5368] set_robust_list(0x555568f86660, 24 [pid 5367] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5369 attached [pid 5368] <... set_robust_list resumed>) = 0 [pid 5367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5369] set_robust_list(0x555568f86660, 24 [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5367] <... bpf resumed>) = 4 [pid 5366] <... bpf resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5369 [pid 5369] <... set_robust_list resumed>) = 0 [pid 5368] <... prctl resumed>) = 0 [pid 5367] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5369] <... prctl resumed>) = 0 [pid 5368] setpgid(0, 0 [pid 5367] <... bpf resumed>) = 5 [pid 5363] <... bpf resumed>) = 5 [pid 5368] <... setpgid resumed>) = 0 [pid 5369] setpgid(0, 0 [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5367] exit_group(0 [pid 5366] <... bpf resumed>) = 5 [pid 5369] <... setpgid resumed>) = 0 [pid 5368] <... openat resumed>) = 3 [pid 5367] <... exit_group resumed>) = ? [pid 5366] exit_group(0 [pid 5363] exit_group(0 [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5366] <... exit_group resumed>) = ? [pid 5368] write(3, "1000", 4 [pid 5367] +++ exited with 0 +++ [pid 5369] <... openat resumed>) = 3 [pid 5366] +++ exited with 0 +++ [pid 5363] <... exit_group resumed>) = ? [pid 5369] write(3, "1000", 4 [pid 5368] <... write resumed>) = 4 [pid 5363] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5366, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5369] <... write resumed>) = 4 [pid 5369] close(3executing program ) = 0 [pid 5369] write(1, "executing program\n", 18) = 18 [pid 5368] close(3 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5369] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5368] <... close resumed>) = 0 executing program [pid 5368] write(1, "executing program\n", 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5369] <... bpf resumed>) = 3 [pid 5368] <... write resumed>) = 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5371 attached ./strace-static-x86_64: Process 5370 attached [pid 5368] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5370 [pid 5371] set_robust_list(0x555568f86660, 24 [pid 5370] set_robust_list(0x555568f86660, 24 [pid 5371] <... set_robust_list resumed>) = 0 [pid 5370] <... set_robust_list resumed>) = 0 [pid 5369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5368] <... bpf resumed>) = 3 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5369] <... bpf resumed>) = 4 [pid 5368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5371 ./strace-static-x86_64: Process 5372 attached [pid 5371] <... prctl resumed>) = 0 [pid 5370] <... prctl resumed>) = 0 [pid 5368] <... bpf resumed>) = 4 [pid 5370] setpgid(0, 0 [pid 5369] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5372 [pid 5372] set_robust_list(0x555568f86660, 24 [pid 5371] setpgid(0, 0 [pid 5370] <... setpgid resumed>) = 0 [pid 5369] <... bpf resumed>) = 5 [pid 5368] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5372] <... set_robust_list resumed>) = 0 [pid 5371] <... setpgid resumed>) = 0 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5368] <... bpf resumed>) = 5 [pid 5372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5369] exit_group(0) = ? [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5370] <... openat resumed>) = 3 [pid 5372] <... prctl resumed>) = 0 [pid 5371] <... openat resumed>) = 3 [pid 5370] write(3, "1000", 4 [pid 5368] exit_group(0 [pid 5372] setpgid(0, 0) = 0 [pid 5370] <... write resumed>) = 4 [pid 5368] <... exit_group resumed>) = ? [pid 5372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5371] write(3, "1000", 4 [pid 5370] close(3) = 0 [pid 5371] <... write resumed>) = 4 [pid 5370] write(1, "executing program\n", 18executing program [pid 5372] <... openat resumed>) = 3 [pid 5371] close(3 [pid 5370] <... write resumed>) = 18 [pid 5372] write(3, "1000", 4 [pid 5371] <... close resumed>) = 0 executing program [pid 5370] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5372] <... write resumed>) = 4 [pid 5371] write(1, "executing program\n", 18 [pid 5370] <... bpf resumed>) = 3 [pid 5372] close(3 [pid 5371] <... write resumed>) = 18 [pid 5372] <... close resumed>) = 0 [pid 5370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5372] write(1, "executing program\n", 18 executing program [pid 5371] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5372] <... write resumed>) = 18 [pid 5370] <... bpf resumed>) = 4 [pid 5372] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5371] <... bpf resumed>) = 3 [pid 5370] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5372] <... bpf resumed>) = 3 [pid 5372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5372] <... bpf resumed>) = 4 [pid 5371] <... bpf resumed>) = 4 [pid 5371] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5372] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5369] +++ exited with 0 +++ [pid 5368] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5373 attached , child_tidptr=0x555568f86650) = 5373 [pid 5373] set_robust_list(0x555568f86660, 24 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5373] <... set_robust_list resumed>) = 0 [pid 5372] <... bpf resumed>) = 5 [pid 5370] <... bpf resumed>) = 5 [pid 5372] exit_group(0 [pid 5371] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5374 attached [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5371] exit_group(0 [pid 5370] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5374 [pid 5374] set_robust_list(0x555568f86660, 24 [pid 5373] <... prctl resumed>) = 0 [pid 5374] <... set_robust_list resumed>) = 0 [pid 5372] <... exit_group resumed>) = ? [pid 5371] <... exit_group resumed>) = ? [pid 5370] <... exit_group resumed>) = ? [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5373] setpgid(0, 0 [pid 5372] +++ exited with 0 +++ [pid 5374] <... prctl resumed>) = 0 [pid 5374] setpgid(0, 0 [pid 5373] <... setpgid resumed>) = 0 [pid 5374] <... setpgid resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5374] write(3, "1000", 4 [pid 5373] <... openat resumed>) = 3 [pid 5373] write(3, "1000", 4 [pid 5374] <... write resumed>) = 4 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5374] close(3 [pid 5373] <... write resumed>) = 4 [pid 5374] <... close resumed>) = 0 [pid 5373] close(3 [pid 5374] write(1, "executing program\n", 18 [pid 5373] <... close resumed>) = 0 executing program executing program [pid 5374] <... write resumed>) = 18 [pid 5373] write(1, "executing program\n", 18 [pid 5374] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5373] <... write resumed>) = 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5373] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5375 attached ) = 3 [pid 5371] +++ exited with 0 +++ [pid 5375] set_robust_list(0x555568f86660, 24 [pid 5374] <... bpf resumed>) = 3 [pid 5375] <... set_robust_list resumed>) = 0 [pid 5374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5373] <... bpf resumed>) = 4 [pid 5370] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5375 [pid 5375] <... prctl resumed>) = 0 [pid 5374] <... bpf resumed>) = 4 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5374] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5375] setpgid(0, 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5375] <... setpgid resumed>) = 0 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5373] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5375] write(3, "1000", 4./strace-static-x86_64: Process 5376 attached [pid 5232] <... restart_syscall resumed>) = 0 [pid 5375] <... write resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5376 [pid 5375] close(3) = 0 [pid 5375] write(1, "executing program\n", 18executing program ) = 18 [pid 5375] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5376] set_robust_list(0x555568f86660, 24) = 0 [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5376] <... prctl resumed>) = 0 [pid 5375] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5376] setpgid(0, 0 [pid 5375] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5376] <... setpgid resumed>) = 0 [pid 5374] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5377 attached [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5374] exit_group(0 [pid 5373] <... bpf resumed>) = 5 [pid 5377] set_robust_list(0x555568f86660, 24) = 0 [pid 5375] <... bpf resumed>) = 5 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5375] exit_group(0 [pid 5374] <... exit_group resumed>) = ? [pid 5373] exit_group(0 [pid 5375] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5377 [pid 5376] <... openat resumed>) = 3 [pid 5375] +++ exited with 0 +++ [pid 5373] <... exit_group resumed>) = ? [pid 5377] <... prctl resumed>) = 0 [pid 5376] write(3, "1000", 4 [pid 5377] setpgid(0, 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5377] <... setpgid resumed>) = 0 [pid 5376] <... write resumed>) = 4 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5376] close(3) = 0 executing program [pid 5377] <... openat resumed>) = 3 [pid 5376] write(1, "executing program\n", 18 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5376] <... write resumed>) = 18 [pid 5377] write(3, "1000", 4) = 4 [pid 5377] close(3 [pid 5376] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5377] <... close resumed>) = 0 [pid 5377] write(1, "executing program\n", 18) = 18 [pid 5377] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5376] <... bpf resumed>) = 3 [pid 5374] +++ exited with 0 +++ [pid 5373] +++ exited with 0 +++ [pid 5377] <... bpf resumed>) = 3 [pid 5376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5376] <... bpf resumed>) = 4 [pid 5377] <... bpf resumed>) = 4 [pid 5376] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5378 attached [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5380 attached ./strace-static-x86_64: Process 5379 attached [pid 5378] set_robust_list(0x555568f86660, 24 [pid 5377] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5376] <... bpf resumed>) = 5 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5378 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5379 [pid 5380] set_robust_list(0x555568f86660, 24 [pid 5379] set_robust_list(0x555568f86660, 24 [pid 5378] <... set_robust_list resumed>) = 0 [pid 5377] <... bpf resumed>) = 5 [pid 5380] <... set_robust_list resumed>) = 0 [pid 5379] <... set_robust_list resumed>) = 0 [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5377] exit_group(0 [pid 5376] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5380 [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] <... prctl resumed>) = 0 [pid 5379] <... prctl resumed>) = 0 [pid 5378] <... prctl resumed>) = 0 [pid 5377] <... exit_group resumed>) = ? [pid 5376] <... exit_group resumed>) = ? [pid 5380] setpgid(0, 0 [pid 5379] setpgid(0, 0 [pid 5378] setpgid(0, 0 [pid 5380] <... setpgid resumed>) = 0 [pid 5379] <... setpgid resumed>) = 0 [pid 5378] <... setpgid resumed>) = 0 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] <... openat resumed>) = 3 [pid 5379] <... openat resumed>) = 3 [pid 5378] <... openat resumed>) = 3 [pid 5380] write(3, "1000", 4) = 4 [pid 5380] close(3) = 0 [pid 5379] write(3, "1000", 4 [pid 5378] write(3, "1000", 4 [pid 5377] +++ exited with 0 +++ [pid 5376] +++ exited with 0 +++ executing program [pid 5380] write(1, "executing program\n", 18 [pid 5379] <... write resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5380] <... write resumed>) = 18 [pid 5379] close(3 [pid 5378] <... write resumed>) = 4 executing program [pid 5380] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5379] <... close resumed>) = 0 [pid 5378] close(3 [pid 5379] write(1, "executing program\n", 18 [pid 5378] <... close resumed>) = 0 [pid 5379] <... write resumed>) = 18 [pid 5378] write(1, "executing program\n", 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5378] <... write resumed>) = 18 [pid 5380] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5381 attached [pid 5381] set_robust_list(0x555568f86660, 24 [pid 5379] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5378] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5379] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5382 attached [pid 5381] <... set_robust_list resumed>) = 0 [pid 5379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5378] <... bpf resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5381 [pid 5382] set_robust_list(0x555568f86660, 24 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5380] <... bpf resumed>) = 4 [pid 5378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5382 [pid 5382] <... set_robust_list resumed>) = 0 [pid 5381] <... prctl resumed>) = 0 [pid 5382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] setpgid(0, 0 [pid 5379] <... bpf resumed>) = 4 [pid 5381] <... setpgid resumed>) = 0 [pid 5382] <... prctl resumed>) = 0 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5382] setpgid(0, 0 [pid 5381] <... openat resumed>) = 3 [pid 5382] <... setpgid resumed>) = 0 [pid 5382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5381] write(3, "1000", 4 [pid 5380] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5379] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5378] <... bpf resumed>) = 4 [pid 5382] <... openat resumed>) = 3 [pid 5381] <... write resumed>) = 4 [pid 5382] write(3, "1000", 4 [pid 5381] close(3 [pid 5380] <... bpf resumed>) = 5 [pid 5379] <... bpf resumed>) = 5 [pid 5378] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5382] <... write resumed>) = 4 [pid 5381] <... close resumed>) = 0 [pid 5382] close(3) = 0 [pid 5381] write(1, "executing program\n", 18executing program executing program [pid 5382] write(1, "executing program\n", 18) = 18 [pid 5381] <... write resumed>) = 18 [pid 5380] exit_group(0 [pid 5379] exit_group(0 [pid 5382] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5381] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5378] <... bpf resumed>) = 5 [pid 5382] <... bpf resumed>) = 3 [pid 5380] <... exit_group resumed>) = ? [pid 5379] <... exit_group resumed>) = ? [pid 5381] <... bpf resumed>) = 3 [pid 5378] exit_group(0 [pid 5382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5379] +++ exited with 0 +++ [pid 5378] <... exit_group resumed>) = ? [pid 5382] <... bpf resumed>) = 4 [pid 5381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5382] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5381] <... bpf resumed>) = 4 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5381] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5380] +++ exited with 0 +++ [pid 5378] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5383 attached [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5383 [pid 5383] set_robust_list(0x555568f86660, 24) = 0 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5384 attached ) = 0 [pid 5383] setpgid(0, 0) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5384 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5384] set_robust_list(0x555568f86660, 24 [pid 5383] <... openat resumed>) = 3 [pid 5382] <... bpf resumed>) = 5 [pid 5381] <... bpf resumed>) = 5 [pid 5384] <... set_robust_list resumed>) = 0 [pid 5383] write(3, "1000", 4 [pid 5382] exit_group(0 [pid 5381] exit_group(0./strace-static-x86_64: Process 5385 attached [pid 5385] set_robust_list(0x555568f86660, 24 [pid 5383] <... write resumed>) = 4 [pid 5382] <... exit_group resumed>) = ? [pid 5381] <... exit_group resumed>) = ? [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5385 [pid 5384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5383] close(3) = 0 [pid 5385] <... set_robust_list resumed>) = 0 [pid 5384] <... prctl resumed>) = 0 [pid 5383] write(1, "executing program\n", 18executing program [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5384] setpgid(0, 0 [pid 5383] <... write resumed>) = 18 [pid 5385] <... prctl resumed>) = 0 [pid 5384] <... setpgid resumed>) = 0 [pid 5383] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5385] setpgid(0, 0 [pid 5384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5383] <... bpf resumed>) = 3 [pid 5385] <... setpgid resumed>) = 0 [pid 5384] <... openat resumed>) = 3 [pid 5383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5384] write(3, "1000", 4 [pid 5383] <... bpf resumed>) = 4 [pid 5384] <... write resumed>) = 4 [pid 5384] close(3 [pid 5385] <... openat resumed>) = 3 [pid 5383] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5385] write(3, "1000", 4 [pid 5384] <... close resumed>) = 0 [pid 5385] <... write resumed>) = 4 executing program [pid 5384] write(1, "executing program\n", 18 [pid 5385] close(3 [pid 5384] <... write resumed>) = 18 [pid 5385] <... close resumed>) = 0 [pid 5384] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5385] write(1, "executing program\n", 18 [pid 5384] <... bpf resumed>) = 3 [pid 5382] +++ exited with 0 +++ [pid 5385] <... write resumed>) = 18 [pid 5384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5385] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5381] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5385] <... bpf resumed>) = 3 [pid 5384] <... bpf resumed>) = 4 [pid 5385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5385] <... bpf resumed>) = 4 [pid 5384] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5385] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5386 attached [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5386 ./strace-static-x86_64: Process 5387 attached [pid 5386] set_robust_list(0x555568f86660, 24 [pid 5385] <... bpf resumed>) = 5 [pid 5384] <... bpf resumed>) = 5 [pid 5383] <... bpf resumed>) = 5 [pid 5387] set_robust_list(0x555568f86660, 24 [pid 5386] <... set_robust_list resumed>) = 0 [pid 5385] exit_group(0 [pid 5384] exit_group(0 [pid 5383] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5387 [pid 5387] <... set_robust_list resumed>) = 0 [pid 5386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5385] <... exit_group resumed>) = ? [pid 5384] <... exit_group resumed>) = ? [pid 5383] <... exit_group resumed>) = ? [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5385] +++ exited with 0 +++ [pid 5386] <... prctl resumed>) = 0 [pid 5384] +++ exited with 0 +++ [pid 5386] setpgid(0, 0) = 0 [pid 5387] <... prctl resumed>) = 0 [pid 5386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5387] setpgid(0, 0 [pid 5383] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5387] <... setpgid resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5386] <... openat resumed>) = 3 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5386] write(3, "1000", 4 [pid 5387] <... openat resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5386] <... write resumed>) = 4 [pid 5386] close(3) = 0 executing program [pid 5387] write(3, "1000", 4 [pid 5386] write(1, "executing program\n", 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5386] <... write resumed>) = 18 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5386] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5388 attached [pid 5387] <... write resumed>) = 4 ./strace-static-x86_64: Process 5389 attached [pid 5388] set_robust_list(0x555568f86660, 24 [pid 5387] close(3 [pid 5386] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5388 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5388] <... set_robust_list resumed>) = 0 [pid 5387] <... close resumed>) = 0 [pid 5389] set_robust_list(0x555568f86660, 24 [pid 5386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5390 attached [pid 5389] <... set_robust_list resumed>) = 0 [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 5387] write(1, "executing program\n", 18 [pid 5386] <... bpf resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5389 [pid 5390] set_robust_list(0x555568f86660, 24 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5388] <... prctl resumed>) = 0 [pid 5387] <... write resumed>) = 18 [pid 5389] <... prctl resumed>) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5390] <... set_robust_list resumed>) = 0 [pid 5388] setpgid(0, 0 [pid 5387] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5390 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5388] <... setpgid resumed>) = 0 [pid 5390] <... prctl resumed>) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5386] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5390] setpgid(0, 0 [pid 5389] <... openat resumed>) = 3 [pid 5388] <... openat resumed>) = 3 [pid 5387] <... bpf resumed>) = 3 [pid 5386] <... bpf resumed>) = 5 [pid 5390] <... setpgid resumed>) = 0 [pid 5389] write(3, "1000", 4 [pid 5388] write(3, "1000", 4 [pid 5387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5389] <... write resumed>) = 4 [pid 5388] <... write resumed>) = 4 [pid 5386] exit_group(0 [pid 5389] close(3 [pid 5386] <... exit_group resumed>) = ? [pid 5390] <... openat resumed>) = 3 [pid 5389] <... close resumed>) = 0 [pid 5388] close(3 [pid 5387] <... bpf resumed>) = 4 [pid 5386] +++ exited with 0 +++ executing program [pid 5390] write(3, "1000", 4 [pid 5389] write(1, "executing program\n", 18 [pid 5388] <... close resumed>) = 0 [pid 5389] <... write resumed>) = 18 executing program [pid 5390] <... write resumed>) = 4 [pid 5388] write(1, "executing program\n", 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5390] close(3 [pid 5389] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5388] <... write resumed>) = 18 [pid 5387] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5390] <... close resumed>) = 0 [pid 5389] <... bpf resumed>) = 3 executing program [pid 5388] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5390] write(1, "executing program\n", 18 [pid 5389] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5390] <... write resumed>) = 18 [pid 5389] <... bpf resumed>) = 4 [pid 5388] <... bpf resumed>) = 3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5390] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5389] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5391 attached [pid 5390] <... bpf resumed>) = 3 [pid 5388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5387] <... bpf resumed>) = 5 [pid 5391] set_robust_list(0x555568f86660, 24 [pid 5390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5389] <... bpf resumed>) = 5 [pid 5391] <... set_robust_list resumed>) = 0 [pid 5390] <... bpf resumed>) = 4 [pid 5388] <... bpf resumed>) = 4 [pid 5387] exit_group(0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5391 [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5389] exit_group(0 [pid 5388] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5387] <... exit_group resumed>) = ? [pid 5391] <... prctl resumed>) = 0 [pid 5390] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5389] <... exit_group resumed>) = ? [pid 5391] setpgid(0, 0 [pid 5390] <... bpf resumed>) = 5 [pid 5387] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5391] <... setpgid resumed>) = 0 [pid 5390] exit_group(0 [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] <... exit_group resumed>) = ? [pid 5391] <... openat resumed>) = 3 [pid 5389] +++ exited with 0 +++ [pid 5388] <... bpf resumed>) = 5 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5391] write(3, "1000", 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5388] exit_group(0 [pid 5391] <... write resumed>) = 4 [pid 5391] close(3 [pid 5388] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5391] <... close resumed>) = 0 ./strace-static-x86_64: Process 5392 attached [pid 5392] set_robust_list(0x555568f86660, 24 [pid 5391] write(1, "executing program\n", 18 [pid 5390] +++ exited with 0 +++ [pid 5388] +++ exited with 0 +++ executing program [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5392 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5393 attached [pid 5391] <... write resumed>) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5392] <... set_robust_list resumed>) = 0 [pid 5393] set_robust_list(0x555568f86660, 24 [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5391] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5393] <... set_robust_list resumed>) = 0 [pid 5392] <... prctl resumed>) = 0 [pid 5391] <... bpf resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5393 [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5392] setpgid(0, 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5393] <... prctl resumed>) = 0 [pid 5392] <... setpgid resumed>) = 0 [pid 5391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5394 attached [pid 5393] setpgid(0, 0 [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5394] set_robust_list(0x555568f86660, 24 [pid 5393] <... setpgid resumed>) = 0 [pid 5392] <... openat resumed>) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5394 [pid 5391] <... bpf resumed>) = 4 [pid 5394] <... set_robust_list resumed>) = 0 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5392] write(3, "1000", 4./strace-static-x86_64: Process 5395 attached [pid 5394] setpgid(0, 0 [pid 5393] <... openat resumed>) = 3 [pid 5392] <... write resumed>) = 4 [pid 5391] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5394] <... setpgid resumed>) = 0 [pid 5392] close(3executing program [pid 5394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5392] <... close resumed>) = 0 [pid 5393] write(3, "1000", 4 [pid 5392] write(1, "executing program\n", 18 [pid 5394] <... openat resumed>) = 3 [pid 5393] <... write resumed>) = 4 [pid 5392] <... write resumed>) = 18 [pid 5391] <... bpf resumed>) = 5 [pid 5393] close(3 [pid 5392] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5393] <... close resumed>) = 0 [pid 5394] write(3, "1000", 4executing program [pid 5393] write(1, "executing program\n", 18 [pid 5392] <... bpf resumed>) = 3 [pid 5394] <... write resumed>) = 4 [pid 5393] <... write resumed>) = 18 [pid 5394] close(3 [pid 5393] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5394] <... close resumed>) = 0 executing program [pid 5393] <... bpf resumed>) = 3 [pid 5395] set_robust_list(0x555568f86660, 24 [pid 5394] write(1, "executing program\n", 18 [pid 5392] <... bpf resumed>) = 4 [pid 5395] <... set_robust_list resumed>) = 0 [pid 5394] <... write resumed>) = 18 [pid 5391] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5395 [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5394] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5391] <... exit_group resumed>) = ? [pid 5395] <... prctl resumed>) = 0 [pid 5394] <... bpf resumed>) = 3 [pid 5393] <... bpf resumed>) = 4 [pid 5392] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5395] setpgid(0, 0 [pid 5394] <... bpf resumed>) = 4 [pid 5391] +++ exited with 0 +++ [pid 5395] <... setpgid resumed>) = 0 [pid 5393] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5396 attached ) = 3 [pid 5394] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5396] set_robust_list(0x555568f86660, 24 [pid 5395] write(3, "1000", 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5396 [pid 5396] <... set_robust_list resumed>) = 0 [pid 5395] <... write resumed>) = 4 [pid 5396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5395] close(3 [pid 5394] <... bpf resumed>) = 5 [pid 5393] <... bpf resumed>) = 5 [pid 5392] <... bpf resumed>) = 5 [pid 5395] <... close resumed>) = 0 executing program [pid 5396] setpgid(0, 0 [pid 5395] write(1, "executing program\n", 18 [pid 5394] exit_group(0 [pid 5393] exit_group(0 [pid 5392] exit_group(0 [pid 5396] <... setpgid resumed>) = 0 [pid 5395] <... write resumed>) = 18 [pid 5394] <... exit_group resumed>) = ? [pid 5392] <... exit_group resumed>) = ? [pid 5393] <... exit_group resumed>) = ? [pid 5396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5395] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5392] +++ exited with 0 +++ [pid 5396] <... openat resumed>) = 3 [pid 5395] <... bpf resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5396] write(3, "1000", 4) = 4 [pid 5396] close(3 [pid 5395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5396] <... close resumed>) = 0 executing program [pid 5396] write(1, "executing program\n", 18 [pid 5395] <... bpf resumed>) = 4 [pid 5396] <... write resumed>) = 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5396] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5395] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5394] +++ exited with 0 +++ ./strace-static-x86_64: Process 5397 attached [pid 5396] <... bpf resumed>) = 3 [pid 5393] +++ exited with 0 +++ [pid 5397] set_robust_list(0x555568f86660, 24 [pid 5396] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5397] <... set_robust_list resumed>) = 0 [pid 5396] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5397 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5396] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5397] <... prctl resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5397] setpgid(0, 0) = 0 [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5397] <... openat resumed>) = 3 [pid 5397] write(3, "1000", 4) = 4 [pid 5397] close(3) = 0 [pid 5397] write(1, "executing program\n", 18) = 18 [pid 5397] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5399 attached ./strace-static-x86_64: Process 5398 attached [pid 5396] <... bpf resumed>) = 5 [pid 5395] <... bpf resumed>) = 5 [pid 5399] set_robust_list(0x555568f86660, 24 [pid 5398] set_robust_list(0x555568f86660, 24 [pid 5397] <... bpf resumed>) = 3 [pid 5396] exit_group(0 [pid 5395] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5398 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5399 [pid 5399] <... set_robust_list resumed>) = 0 [pid 5398] <... set_robust_list resumed>) = 0 [pid 5397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5396] <... exit_group resumed>) = ? [pid 5395] <... exit_group resumed>) = ? [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5397] <... bpf resumed>) = 4 [pid 5396] +++ exited with 0 +++ [pid 5395] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5399] <... prctl resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5398] <... prctl resumed>) = 0 [pid 5397] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5399] setpgid(0, 0 [pid 5398] setpgid(0, 0 [pid 5399] <... setpgid resumed>) = 0 [pid 5398] <... setpgid resumed>) = 0 [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] <... openat resumed>) = 3 [pid 5398] <... openat resumed>) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5399] write(3, "1000", 4./strace-static-x86_64: Process 5400 attached [pid 5398] write(3, "1000", 4 [pid 5397] <... bpf resumed>) = 5 [pid 5400] set_robust_list(0x555568f86660, 24 [pid 5399] <... write resumed>) = 4 [pid 5398] <... write resumed>) = 4 [pid 5400] <... set_robust_list resumed>) = 0 [pid 5399] close(3 [pid 5398] close(3 [pid 5397] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5400 [pid 5400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] <... close resumed>) = 0 [pid 5398] <... close resumed>) = 0 [pid 5399] write(1, "executing program\n", 18 executing program executing program [pid 5398] write(1, "executing program\n", 18 [pid 5400] <... prctl resumed>) = 0 [pid 5399] <... write resumed>) = 18 [pid 5398] <... write resumed>) = 18 [pid 5400] setpgid(0, 0 [pid 5399] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5398] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5397] <... exit_group resumed>) = ? [pid 5400] <... setpgid resumed>) = 0 [pid 5400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] <... bpf resumed>) = 3 [pid 5398] <... bpf resumed>) = 3 [pid 5400] <... openat resumed>) = 3 [pid 5399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5400] write(3, "1000", 4 [pid 5399] <... bpf resumed>) = 4 [pid 5398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5397] +++ exited with 0 +++ [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5400] <... write resumed>) = 4 [pid 5400] close(3 [pid 5399] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5398] <... bpf resumed>) = 4 [pid 5400] <... close resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5401 attached [pid 5400] write(1, "executing program\n", 18 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5401 executing program [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5401] set_robust_list(0x555568f86660, 24) = 0 [pid 5400] <... write resumed>) = 18 [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5400] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5401] <... prctl resumed>) = 0 [pid 5401] setpgid(0, 0) = 0 [pid 5400] <... bpf resumed>) = 3 [pid 5398] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5401] <... openat resumed>) = 3 [pid 5401] write(3, "1000", 4 [pid 5400] <... bpf resumed>) = 4 [pid 5401] <... write resumed>) = 4 [pid 5401] close(3 [pid 5400] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5401] <... close resumed>) = 0 [pid 5399] <... bpf resumed>) = 5 [pid 5398] <... bpf resumed>) = 5 [pid 5232] <... restart_syscall resumed>) = 0 executing program [pid 5401] write(1, "executing program\n", 18 [pid 5400] <... bpf resumed>) = 5 [pid 5399] exit_group(0 [pid 5398] exit_group(0 [pid 5401] <... write resumed>) = 18 [pid 5400] exit_group(0 [pid 5399] <... exit_group resumed>) = ? [pid 5398] <... exit_group resumed>) = ? [pid 5401] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5399] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5401] <... bpf resumed>) = 3 [pid 5400] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5402 attached [pid 5402] set_robust_list(0x555568f86660, 24 [pid 5401] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5402 [pid 5402] <... set_robust_list resumed>) = 0 [pid 5401] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5402] setpgid(0, 0 [pid 5398] +++ exited with 0 +++ [pid 5402] <... setpgid resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5400] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5400, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5402] <... openat resumed>) = 3 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5402] write(3, "1000", 4./strace-static-x86_64: Process 5403 attached [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5402] <... write resumed>) = 4 [pid 5403] set_robust_list(0x555568f86660, 24 [pid 5402] close(3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5403 [pid 5402] <... close resumed>) = 0 [pid 5402] write(1, "executing program\n", 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5404 attached [pid 5403] <... set_robust_list resumed>) = 0 [pid 5402] <... write resumed>) = 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5402] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5405 attached [pid 5404] set_robust_list(0x555568f86660, 24 [pid 5403] <... prctl resumed>) = 0 [pid 5404] <... set_robust_list resumed>) = 0 [pid 5404] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5403] setpgid(0, 0 [pid 5402] <... bpf resumed>) = 3 [pid 5405] set_robust_list(0x555568f86660, 24 [pid 5404] <... prctl resumed>) = 0 [pid 5405] <... set_robust_list resumed>) = 0 [pid 5403] <... setpgid resumed>) = 0 [pid 5404] setpgid(0, 0) = 0 [pid 5402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5404 [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5402] <... bpf resumed>) = 4 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5405 [pid 5402] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5405] <... prctl resumed>) = 0 [pid 5404] <... openat resumed>) = 3 [pid 5403] <... openat resumed>) = 3 [pid 5401] <... bpf resumed>) = 5 [pid 5405] setpgid(0, 0 [pid 5404] write(3, "1000", 4 [pid 5403] write(3, "1000", 4 [pid 5402] <... bpf resumed>) = 5 [pid 5401] exit_group(0 [pid 5405] <... setpgid resumed>) = 0 [pid 5404] <... write resumed>) = 4 [pid 5403] <... write resumed>) = 4 [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5404] close(3 [pid 5403] close(3 [pid 5402] exit_group(0 [pid 5401] <... exit_group resumed>) = ? [pid 5405] <... openat resumed>) = 3 [pid 5404] <... close resumed>) = 0 executing program [pid 5403] <... close resumed>) = 0 [pid 5404] write(1, "executing program\n", 18 [pid 5405] write(3, "1000", 4 executing program [pid 5404] <... write resumed>) = 18 [pid 5403] write(1, "executing program\n", 18 [pid 5402] <... exit_group resumed>) = ? [pid 5405] <... write resumed>) = 4 [pid 5404] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5403] <... write resumed>) = 18 [pid 5405] close(3 [pid 5403] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5405] <... close resumed>) = 0 [pid 5404] <... bpf resumed>) = 3 [pid 5403] <... bpf resumed>) = 3 executing program [pid 5405] write(1, "executing program\n", 18 [pid 5403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5405] <... write resumed>) = 18 [pid 5404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5403] <... bpf resumed>) = 4 [pid 5405] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5404] <... bpf resumed>) = 4 [pid 5405] <... bpf resumed>) = 4 [pid 5404] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5403] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5405] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5402] +++ exited with 0 +++ [pid 5401] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5406 attached , child_tidptr=0x555568f86650) = 5407 ./strace-static-x86_64: Process 5407 attached [pid 5406] set_robust_list(0x555568f86660, 24 [pid 5405] <... bpf resumed>) = 5 [pid 5404] <... bpf resumed>) = 5 [pid 5403] <... bpf resumed>) = 5 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5406 [pid 5407] set_robust_list(0x555568f86660, 24 [pid 5406] <... set_robust_list resumed>) = 0 [pid 5404] exit_group(0 [pid 5407] <... set_robust_list resumed>) = 0 [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] exit_group(0 [pid 5403] exit_group(0 [pid 5405] <... exit_group resumed>) = ? [pid 5403] <... exit_group resumed>) = ? [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5406] <... prctl resumed>) = 0 [pid 5404] <... exit_group resumed>) = ? [pid 5407] <... prctl resumed>) = 0 [pid 5406] setpgid(0, 0 [pid 5404] +++ exited with 0 +++ [pid 5407] setpgid(0, 0 [pid 5406] <... setpgid resumed>) = 0 [pid 5407] <... setpgid resumed>) = 0 [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] <... openat resumed>) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5407] <... openat resumed>) = 3 [pid 5406] write(3, "1000", 4 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5407] write(3, "1000", 4 [pid 5406] <... write resumed>) = 4 [pid 5407] <... write resumed>) = 4 [pid 5406] close(3 [pid 5407] close(3 [pid 5406] <... close resumed>) = 0 [pid 5407] <... close resumed>) = 0 [pid 5406] write(1, "executing program\n", 18executing program executing program [pid 5407] write(1, "executing program\n", 18 [pid 5406] <... write resumed>) = 18 [pid 5407] <... write resumed>) = 18 [pid 5406] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5407] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5408 attached ) = 3 [pid 5406] <... bpf resumed>) = 3 [pid 5405] +++ exited with 0 +++ [pid 5403] +++ exited with 0 +++ [pid 5407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5408] set_robust_list(0x555568f86660, 24 [pid 5407] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5408 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5408] <... set_robust_list resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5407] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5406] <... bpf resumed>) = 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5408] <... prctl resumed>) = 0 [pid 5408] setpgid(0, 0./strace-static-x86_64: Process 5409 attached [pid 5407] <... bpf resumed>) = 5 [pid 5406] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5409] set_robust_list(0x555568f86660, 24 [pid 5408] <... setpgid resumed>) = 0 [pid 5407] exit_group(0 [pid 5406] <... bpf resumed>) = 5 [pid 5409] <... set_robust_list resumed>) = 0 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5409 ./strace-static-x86_64: Process 5410 attached [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] <... openat resumed>) = 3 [pid 5407] <... exit_group resumed>) = ? [pid 5406] exit_group(0 [pid 5410] set_robust_list(0x555568f86660, 24 [pid 5409] <... prctl resumed>) = 0 [pid 5408] write(3, "1000", 4 [pid 5406] <... exit_group resumed>) = ? [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5410 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5409] setpgid(0, 0 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] <... write resumed>) = 4 [pid 5410] <... prctl resumed>) = 0 [pid 5409] <... setpgid resumed>) = 0 [pid 5408] close(3 [pid 5410] setpgid(0, 0 [pid 5408] <... close resumed>) = 0 [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5408] write(1, "executing program\n", 18 [pid 5410] <... setpgid resumed>) = 0 [pid 5408] <... write resumed>) = 18 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5408] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5410] <... openat resumed>) = 3 [pid 5409] <... openat resumed>) = 3 [pid 5409] write(3, "1000", 4 [pid 5410] write(3, "1000", 4 [pid 5409] <... write resumed>) = 4 [pid 5410] <... write resumed>) = 4 [pid 5410] close(3 [pid 5409] close(3 [pid 5408] <... bpf resumed>) = 3 [pid 5410] <... close resumed>) = 0 [pid 5409] <... close resumed>) = 0 [pid 5408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5410] write(1, "executing program\n", 18 [pid 5409] write(1, "executing program\n", 18executing program [pid 5410] <... write resumed>) = 18 [pid 5409] <... write resumed>) = 18 [pid 5410] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5409] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5408] <... bpf resumed>) = 4 [pid 5410] <... bpf resumed>) = 3 [pid 5408] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5409] <... bpf resumed>) = 3 [pid 5407] +++ exited with 0 +++ [pid 5406] +++ exited with 0 +++ [pid 5409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5410] <... bpf resumed>) = 4 [pid 5409] <... bpf resumed>) = 4 [pid 5410] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5409] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5411 attached [pid 5411] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5412 attached ) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5412 [pid 5412] set_robust_list(0x555568f86660, 24) = 0 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5411] setpgid(0, 0 [pid 5412] <... prctl resumed>) = 0 [pid 5412] setpgid(0, 0) = 0 [pid 5411] <... setpgid resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5411 [pid 5412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5412] <... openat resumed>) = 3 [pid 5411] <... openat resumed>) = 3 [pid 5412] write(3, "1000", 4) = 4 [pid 5411] write(3, "1000", 4 [pid 5412] close(3 [pid 5411] <... write resumed>) = 4 [pid 5412] <... close resumed>) = 0 [pid 5411] close(3executing program [pid 5412] write(1, "executing program\n", 18 [pid 5411] <... close resumed>) = 0 [pid 5408] <... bpf resumed>) = 5 [pid 5412] <... write resumed>) = 18 [pid 5409] <... bpf resumed>) = 5 executing program [pid 5411] write(1, "executing program\n", 18) = 18 [pid 5411] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5410] <... bpf resumed>) = 5 [pid 5409] exit_group(0 [pid 5412] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5411] <... bpf resumed>) = 3 [pid 5410] exit_group(0 [pid 5409] <... exit_group resumed>) = ? [pid 5408] exit_group(0 [pid 5412] <... bpf resumed>) = 3 [pid 5411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5408] <... exit_group resumed>) = ? [pid 5412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5410] <... exit_group resumed>) = ? [pid 5409] +++ exited with 0 +++ [pid 5412] <... bpf resumed>) = 4 [pid 5411] <... bpf resumed>) = 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5412] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5411] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5408] +++ exited with 0 +++ [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5410] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5413 ./strace-static-x86_64: Process 5413 attached [pid 5413] set_robust_list(0x555568f86660, 24) = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5413] setpgid(0, 0) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5413] write(3, "1000", 4./strace-static-x86_64: Process 5414 attached [pid 5412] <... bpf resumed>) = 5 [pid 5411] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5414] set_robust_list(0x555568f86660, 24 [pid 5413] <... write resumed>) = 4 [pid 5412] exit_group(0 [pid 5411] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5414 [pid 5414] <... set_robust_list resumed>) = 0 [pid 5413] close(3 [pid 5414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5413] <... close resumed>) = 0 [pid 5412] <... exit_group resumed>) = ? [pid 5413] write(1, "executing program\n", 18 [pid 5411] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5415 attached [pid 5414] <... prctl resumed>) = 0 [pid 5413] <... write resumed>) = 18 [pid 5414] setpgid(0, 0 [pid 5413] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5415] set_robust_list(0x555568f86660, 24 [pid 5414] <... setpgid resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5415 [pid 5415] <... set_robust_list resumed>) = 0 [pid 5414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5415] setpgid(0, 0) = 0 [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5413] <... bpf resumed>) = 3 [pid 5415] <... openat resumed>) = 3 [pid 5414] <... openat resumed>) = 3 [pid 5413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5415] write(3, "1000", 4 [pid 5414] write(3, "1000", 4 [pid 5415] <... write resumed>) = 4 [pid 5414] <... write resumed>) = 4 [pid 5413] <... bpf resumed>) = 4 [pid 5414] close(3) = 0 [pid 5414] write(1, "executing program\n", 18executing program ) = 18 [pid 5414] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5415] close(3) = 0 [pid 5414] <... bpf resumed>) = 3 [pid 5413] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5415] write(1, "executing program\n", 18 [pid 5414] <... bpf resumed>) = 4 [pid 5415] <... write resumed>) = 18 [pid 5414] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5415] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5412] +++ exited with 0 +++ [pid 5411] +++ exited with 0 +++ [pid 5415] <... bpf resumed>) = 3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5416 attached [pid 5415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5416 [pid 5416] set_robust_list(0x555568f86660, 24 [pid 5415] <... bpf resumed>) = 4 [pid 5416] <... set_robust_list resumed>) = 0 [pid 5415] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5414] <... bpf resumed>) = 5 [pid 5413] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5414] exit_group(0./strace-static-x86_64: Process 5417 attached [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5415] <... bpf resumed>) = 5 [pid 5413] exit_group(0 [pid 5417] set_robust_list(0x555568f86660, 24 [pid 5415] exit_group(0 [pid 5414] <... exit_group resumed>) = ? [pid 5417] <... set_robust_list resumed>) = 0 [pid 5416] <... prctl resumed>) = 0 [pid 5413] <... exit_group resumed>) = ? [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5417 [pid 5415] <... exit_group resumed>) = ? [pid 5416] setpgid(0, 0 [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5416] <... setpgid resumed>) = 0 [pid 5415] +++ exited with 0 +++ [pid 5417] <... prctl resumed>) = 0 [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5417] setpgid(0, 0) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5416] <... openat resumed>) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5416] write(3, "1000", 4 [pid 5417] <... openat resumed>) = 3 executing program [pid 5416] <... write resumed>) = 4 [pid 5416] close(3) = 0 [pid 5416] write(1, "executing program\n", 18) = 18 [pid 5416] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5417] write(3, "1000", 4 [pid 5414] +++ exited with 0 +++ [pid 5413] +++ exited with 0 +++ [pid 5230] <... restart_syscall resumed>) = 0 [pid 5417] <... write resumed>) = 4 [pid 5416] <... bpf resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5417] close(3 [pid 5416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5417] <... close resumed>) = 0 [pid 5417] write(1, "executing program\n", 18 [pid 5416] <... bpf resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5419 attached ./strace-static-x86_64: Process 5418 attached [pid 5417] <... write resumed>) = 18 [pid 5416] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5419] set_robust_list(0x555568f86660, 24 [pid 5418] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5420 attached [pid 5417] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5416] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5418 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5420 [pid 5420] set_robust_list(0x555568f86660, 24) = 0 [pid 5419] <... set_robust_list resumed>) = 0 [pid 5418] <... set_robust_list resumed>) = 0 [pid 5417] <... bpf resumed>) = 3 [pid 5416] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5419 [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] <... prctl resumed>) = 0 [pid 5419] <... prctl resumed>) = 0 [pid 5418] <... prctl resumed>) = 0 [pid 5417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5416] <... exit_group resumed>) = ? [pid 5420] setpgid(0, 0 [pid 5419] setpgid(0, 0 [pid 5418] setpgid(0, 0 [pid 5417] <... bpf resumed>) = 4 [pid 5420] <... setpgid resumed>) = 0 [pid 5419] <... setpgid resumed>) = 0 [pid 5418] <... setpgid resumed>) = 0 [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5416] +++ exited with 0 +++ [pid 5420] <... openat resumed>) = 3 [pid 5418] <... openat resumed>) = 3 [pid 5417] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5419] <... openat resumed>) = 3 [pid 5418] write(3, "1000", 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5420] write(3, "1000", 4 [pid 5418] <... write resumed>) = 4 [pid 5420] <... write resumed>) = 4 [pid 5418] close(3executing program [pid 5420] close(3 [pid 5419] write(3, "1000", 4 [pid 5418] <... close resumed>) = 0 [pid 5420] <... close resumed>) = 0 [pid 5419] <... write resumed>) = 4 [pid 5418] write(1, "executing program\n", 18executing program [pid 5420] write(1, "executing program\n", 18 [pid 5419] close(3 [pid 5418] <... write resumed>) = 18 [pid 5420] <... write resumed>) = 18 [pid 5419] <... close resumed>) = 0 [pid 5418] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5420] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5419] write(1, "executing program\n", 18 [pid 5418] <... bpf resumed>) = 3 [pid 5420] <... bpf resumed>) = 3 [pid 5419] <... write resumed>) = 18 [pid 5418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5419] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5418] <... bpf resumed>) = 4 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5419] <... bpf resumed>) = 3 [pid 5418] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5420] <... bpf resumed>) = 4 [pid 5419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5420] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5421 attached [pid 5421] set_robust_list(0x555568f86660, 24 [pid 5419] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5421 [pid 5421] <... set_robust_list resumed>) = 0 [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5419] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5421] <... prctl resumed>) = 0 [pid 5420] <... bpf resumed>) = 5 [pid 5419] <... bpf resumed>) = 5 [pid 5418] <... bpf resumed>) = 5 [pid 5417] <... bpf resumed>) = 5 [pid 5421] setpgid(0, 0 [pid 5420] exit_group(0 [pid 5419] exit_group(0 [pid 5418] exit_group(0 [pid 5421] <... setpgid resumed>) = 0 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] <... exit_group resumed>) = ? [pid 5418] <... exit_group resumed>) = ? [pid 5421] <... openat resumed>) = 3 [pid 5420] <... exit_group resumed>) = ? [pid 5419] +++ exited with 0 +++ [pid 5417] exit_group(0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5421] write(3, "1000", 4executing program ) = 4 [pid 5418] +++ exited with 0 +++ [pid 5421] close(3) = 0 [pid 5421] write(1, "executing program\n", 18) = 18 [pid 5421] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5420] +++ exited with 0 +++ [pid 5417] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... restart_syscall resumed>) = 0 [pid 5421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5421] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5417] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5420, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5422 attached , child_tidptr=0x555568f86650) = 5422 [pid 5422] set_robust_list(0x555568f86660, 24 [pid 5421] <... bpf resumed>) = 5 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5422] <... set_robust_list resumed>) = 0 [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5422] setpgid(0, 0 [pid 5421] exit_group(0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5423 attached ./strace-static-x86_64: Process 5424 attached [pid 5422] <... setpgid resumed>) = 0 [pid 5421] <... exit_group resumed>) = ? [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5424] set_robust_list(0x555568f86660, 24 [pid 5423] set_robust_list(0x555568f86660, 24 [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5425 attached [pid 5424] <... set_robust_list resumed>) = 0 [pid 5423] <... set_robust_list resumed>) = 0 [pid 5421] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5423 [pid 5425] set_robust_list(0x555568f86660, 24 [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] <... openat resumed>) = 3 [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5425] <... set_robust_list resumed>) = 0 [pid 5424] <... prctl resumed>) = 0 [pid 5423] <... prctl resumed>) = 0 [pid 5422] <... write resumed>) = 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5422] close(3executing program [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5425 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5424 [pid 5424] setpgid(0, 0 [pid 5423] setpgid(0, 0 [pid 5422] <... close resumed>) = 0 [pid 5422] write(1, "executing program\n", 18 [pid 5425] <... prctl resumed>) = 0 [pid 5424] <... setpgid resumed>) = 0 [pid 5423] <... setpgid resumed>) = 0 [pid 5422] <... write resumed>) = 18 [pid 5422] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5425] setpgid(0, 0 [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5422] <... bpf resumed>) = 3 [pid 5425] <... setpgid resumed>) = 0 [pid 5422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5424] <... openat resumed>) = 3 [pid 5423] <... openat resumed>) = 3 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5425] <... openat resumed>) = 3 [pid 5424] write(3, "1000", 4 [pid 5423] write(3, "1000", 4 [pid 5422] <... bpf resumed>) = 4 [pid 5424] <... write resumed>) = 4 [pid 5423] <... write resumed>) = 4 [pid 5425] write(3, "1000", 4 [pid 5424] close(3 [pid 5425] <... write resumed>) = 4 [pid 5425] close(3 [pid 5424] <... close resumed>) = 0 [pid 5424] write(1, "executing program\n", 18 [pid 5423] close(3 [pid 5425] <... close resumed>) = 0 [pid 5424] <... write resumed>) = 18 [pid 5423] <... close resumed>) = 0 executing program [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5425] write(1, "executing program\n", 18executing program executing program [pid 5424] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5423] write(1, "executing program\n", 18./strace-static-x86_64: Process 5426 attached [pid 5425] <... write resumed>) = 18 [pid 5423] <... write resumed>) = 18 [pid 5422] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5426] set_robust_list(0x555568f86660, 24) = 0 [pid 5425] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5424] <... bpf resumed>) = 3 [pid 5423] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5422] <... bpf resumed>) = 5 [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5425] <... bpf resumed>) = 3 [pid 5426] <... prctl resumed>) = 0 [pid 5426] setpgid(0, 0 [pid 5425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5423] <... bpf resumed>) = 3 [pid 5422] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5426 [pid 5426] <... setpgid resumed>) = 0 [pid 5423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5422] <... exit_group resumed>) = ? [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] <... bpf resumed>) = 4 [pid 5424] <... bpf resumed>) = 4 [pid 5423] <... bpf resumed>) = 4 [pid 5422] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5423] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5425] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5426] <... openat resumed>) = 3 [pid 5424] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5426] write(3, "1000", 4) = 4 [pid 5426] close(3 [pid 5425] <... bpf resumed>) = 5 [pid 5426] <... close resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] write(1, "executing program\n", 18executing program ) = 18 [pid 5425] exit_group(0 [pid 5426] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5425] <... exit_group resumed>) = ? [pid 5426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5424] <... bpf resumed>) = 5 [pid 5423] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5427 attached [pid 5425] +++ exited with 0 +++ [pid 5424] exit_group(0 [pid 5423] exit_group(0 [pid 5427] set_robust_list(0x555568f86660, 24) = 0 [pid 5426] <... bpf resumed>) = 4 [pid 5424] <... exit_group resumed>) = ? [pid 5423] <... exit_group resumed>) = ? [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5427 [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5426] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5427] <... prctl resumed>) = 0 [pid 5427] setpgid(0, 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5427] <... setpgid resumed>) = 0 [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5427] write(3, "1000", 4) = 4 [pid 5427] close(3) = 0 [pid 5427] write(1, "executing program\n", 18 [pid 5233] <... restart_syscall resumed>) = 0 executing program [pid 5427] <... write resumed>) = 18 [pid 5424] +++ exited with 0 +++ [pid 5426] <... bpf resumed>) = 5 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5427] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5426] exit_group(0./strace-static-x86_64: Process 5428 attached [pid 5427] <... bpf resumed>) = 3 [pid 5426] <... exit_group resumed>) = ? [pid 5428] set_robust_list(0x555568f86660, 24 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5428] <... set_robust_list resumed>) = 0 [pid 5427] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5428 [pid 5427] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5429 attached [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5429 [pid 5429] set_robust_list(0x555568f86660, 24) = 0 [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] <... prctl resumed>) = 0 [pid 5429] <... prctl resumed>) = 0 [pid 5428] setpgid(0, 0 [pid 5426] +++ exited with 0 +++ [pid 5423] +++ exited with 0 +++ [pid 5429] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5429] <... setpgid resumed>) = 0 [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5428] <... setpgid resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5429] <... openat resumed>) = 3 [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5429] write(3, "1000", 4) = 4 [pid 5429] close(3executing program ) = 0 [pid 5428] <... openat resumed>) = 3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5430 attached [pid 5429] write(1, "executing program\n", 18 [pid 5430] set_robust_list(0x555568f86660, 24 [pid 5429] <... write resumed>) = 18 [pid 5430] <... set_robust_list resumed>) = 0 [pid 5429] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5430 [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5431 attached ) = 0 [pid 5429] <... bpf resumed>) = 3 [pid 5428] write(3, "1000", 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5431 [pid 5431] set_robust_list(0x555568f86660, 24 [pid 5430] setpgid(0, 0 [pid 5428] <... write resumed>) = 4 [pid 5431] <... set_robust_list resumed>) = 0 [pid 5430] <... setpgid resumed>) = 0 [pid 5428] close(3 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5428] <... close resumed>) = 0 executing program [pid 5431] <... prctl resumed>) = 0 [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5428] write(1, "executing program\n", 18 [pid 5431] setpgid(0, 0 [pid 5428] <... write resumed>) = 18 [pid 5431] <... setpgid resumed>) = 0 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5430] <... openat resumed>) = 3 [pid 5428] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5431] <... openat resumed>) = 3 [pid 5430] write(3, "1000", 4 [pid 5429] <... bpf resumed>) = 4 [pid 5429] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5431] write(3, "1000", 4 [pid 5430] <... write resumed>) = 4 [pid 5428] <... bpf resumed>) = 3 [pid 5431] <... write resumed>) = 4 [pid 5430] close(3 [pid 5428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5431] close(3 [pid 5430] <... close resumed>) = 0 [pid 5428] <... bpf resumed>) = 4 executing program [pid 5431] <... close resumed>) = 0 [pid 5430] write(1, "executing program\n", 18 [pid 5431] write(1, "executing program\n", 18 [pid 5430] <... write resumed>) = 18 executing program [pid 5430] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5431] <... write resumed>) = 18 [pid 5430] <... bpf resumed>) = 3 [pid 5428] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5431] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5430] <... bpf resumed>) = 4 [pid 5431] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5430] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5429] <... bpf resumed>) = 5 [pid 5428] <... bpf resumed>) = 5 [pid 5427] <... bpf resumed>) = 5 [pid 5431] <... bpf resumed>) = 5 [pid 5430] <... bpf resumed>) = 5 [pid 5429] exit_group(0 [pid 5428] exit_group(0 [pid 5427] exit_group(0 [pid 5431] exit_group(0 [pid 5430] exit_group(0 [pid 5429] <... exit_group resumed>) = ? [pid 5428] <... exit_group resumed>) = ? [pid 5427] <... exit_group resumed>) = ? [pid 5431] <... exit_group resumed>) = ? [pid 5430] <... exit_group resumed>) = ? [pid 5429] +++ exited with 0 +++ [pid 5428] +++ exited with 0 +++ [pid 5427] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5432 attached , child_tidptr=0x555568f86650) = 5432 [pid 5432] set_robust_list(0x555568f86660, 24 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5432] <... set_robust_list resumed>) = 0 [pid 5432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5431] +++ exited with 0 +++ [pid 5430] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5432] setpgid(0, 0./strace-static-x86_64: Process 5434 attached ./strace-static-x86_64: Process 5433 attached [pid 5433] set_robust_list(0x555568f86660, 24) = 0 [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] set_robust_list(0x555568f86660, 24 [pid 5433] <... prctl resumed>) = 0 [pid 5432] <... setpgid resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5434 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5433 [pid 5434] <... set_robust_list resumed>) = 0 [pid 5433] setpgid(0, 0 [pid 5432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5433] <... setpgid resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] <... openat resumed>) = 3 [pid 5434] <... prctl resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5434] setpgid(0, 0 [pid 5433] <... openat resumed>) = 3 [pid 5432] write(3, "1000", 4executing program ) = 4 [pid 5432] close(3) = 0 ./strace-static-x86_64: Process 5435 attached [pid 5434] <... setpgid resumed>) = 0 [pid 5433] write(3, "1000", 4 [pid 5432] write(1, "executing program\n", 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5435] set_robust_list(0x555568f86660, 24 [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5433] <... write resumed>) = 4 [pid 5432] <... write resumed>) = 18 [pid 5432] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5436 attached [pid 5435] <... set_robust_list resumed>) = 0 [pid 5434] <... openat resumed>) = 3 [pid 5433] close(3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5435 [pid 5436] set_robust_list(0x555568f86660, 24 [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] write(3, "1000", 4 [pid 5433] <... close resumed>) = 0 [pid 5432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5436] <... set_robust_list resumed>) = 0 executing program [pid 5435] <... prctl resumed>) = 0 [pid 5434] <... write resumed>) = 4 [pid 5433] write(1, "executing program\n", 18 [pid 5432] <... bpf resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5436 [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5435] setpgid(0, 0 [pid 5434] close(3 [pid 5433] <... write resumed>) = 18 [pid 5435] <... setpgid resumed>) = 0 [pid 5434] <... close resumed>) = 0 [pid 5436] <... prctl resumed>) = 0 [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 5433] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5432] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5434] write(1, "executing program\n", 18 [pid 5436] setpgid(0, 0) = 0 [pid 5435] <... openat resumed>) = 3 [pid 5434] <... write resumed>) = 18 [pid 5433] <... bpf resumed>) = 3 [pid 5432] <... bpf resumed>) = 5 [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5435] write(3, "1000", 4 [pid 5434] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5432] exit_group(0 [pid 5436] write(3, "1000", 4 [pid 5435] <... write resumed>) = 4 [pid 5434] <... bpf resumed>) = 3 [pid 5433] <... bpf resumed>) = 4 [pid 5432] <... exit_group resumed>) = ? [pid 5436] <... write resumed>) = 4 [pid 5435] close(3 [pid 5436] close(3 [pid 5435] <... close resumed>) = 0 [pid 5434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5432] +++ exited with 0 +++ executing program [pid 5436] <... close resumed>) = 0 [pid 5435] write(1, "executing program\n", 18 [pid 5434] <... bpf resumed>) = 4 [pid 5433] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5432, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5436] write(1, "executing program\n", 18 [pid 5435] <... write resumed>) = 18 executing program [pid 5435] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5436] <... write resumed>) = 18 [pid 5435] <... bpf resumed>) = 3 [pid 5436] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5434] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5436] <... bpf resumed>) = 3 [pid 5435] <... bpf resumed>) = 4 [pid 5436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5435] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5436] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5437 attached [pid 5437] set_robust_list(0x555568f86660, 24 [pid 5436] <... bpf resumed>) = 5 [pid 5435] <... bpf resumed>) = 5 [pid 5434] <... bpf resumed>) = 5 [pid 5433] <... bpf resumed>) = 5 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5437 [pid 5437] <... set_robust_list resumed>) = 0 [pid 5436] exit_group(0 [pid 5435] exit_group(0 [pid 5434] exit_group(0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5435] <... exit_group resumed>) = ? [pid 5433] exit_group(0) = ? [pid 5437] <... prctl resumed>) = 0 [pid 5436] <... exit_group resumed>) = ? [pid 5434] <... exit_group resumed>) = ? [pid 5437] setpgid(0, 0 [pid 5436] +++ exited with 0 +++ [pid 5433] +++ exited with 0 +++ [pid 5437] <... setpgid resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5437] <... openat resumed>) = 3 [pid 5437] write(3, "1000", 4) = 4 [pid 5437] close(3) = 0 [pid 5437] write(1, "executing program\n", 18executing program ) = 18 [pid 5437] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5437] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5438 attached , child_tidptr=0x555568f86650) = 5438 [pid 5438] set_robust_list(0x555568f86660, 24 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5438] <... set_robust_list resumed>) = 0 [pid 5435] +++ exited with 0 +++ [pid 5434] +++ exited with 0 +++ ./strace-static-x86_64: Process 5439 attached [pid 5438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5438] <... prctl resumed>) = 0 [pid 5438] setpgid(0, 0 [pid 5439] set_robust_list(0x555568f86660, 24 [pid 5438] <... setpgid resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5439] <... set_robust_list resumed>) = 0 [pid 5438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5438] <... openat resumed>) = 3 [pid 5438] write(3, "1000", 4) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5439 [pid 5438] close(3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5438] <... close resumed>) = 0 [pid 5439] <... prctl resumed>) = 0 [pid 5438] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5440 attached [pid 5439] setpgid(0, 0 [pid 5438] <... write resumed>) = 18 [pid 5440] set_robust_list(0x555568f86660, 24 [pid 5439] <... setpgid resumed>) = 0 [pid 5440] <... set_robust_list resumed>) = 0 [pid 5438] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5440] <... prctl resumed>) = 0 [pid 5440] setpgid(0, 0 [pid 5438] <... bpf resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5440 [pid 5440] <... setpgid resumed>) = 0 [pid 5439] <... openat resumed>) = 3 [pid 5438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5439] write(3, "1000", 4 [pid 5438] <... bpf resumed>) = 4 [pid 5438] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5440] <... openat resumed>) = 3 [pid 5439] <... write resumed>) = 4 [pid 5437] <... bpf resumed>) = 5 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5440] write(3, "1000", 4 [pid 5439] close(3 [pid 5438] <... bpf resumed>) = 5 [pid 5440] <... write resumed>) = 4 [pid 5439] <... close resumed>) = 0 [pid 5437] exit_group(0 [pid 5440] close(3 [pid 5439] write(1, "executing program\n", 18 [pid 5438] exit_group(0 [pid 5437] <... exit_group resumed>) = ? [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5441 attached [pid 5440] <... close resumed>) = 0 [pid 5439] <... write resumed>) = 18 [pid 5438] <... exit_group resumed>) = ? [pid 5441] set_robust_list(0x555568f86660, 24 [pid 5440] write(1, "executing program\n", 18 executing program [pid 5439] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5441 [pid 5441] <... set_robust_list resumed>) = 0 [pid 5440] <... write resumed>) = 18 [pid 5440] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] <... bpf resumed>) = 3 [pid 5441] <... prctl resumed>) = 0 [pid 5440] <... bpf resumed>) = 3 [pid 5439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5441] setpgid(0, 0 [pid 5440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5441] <... setpgid resumed>) = 0 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5440] <... bpf resumed>) = 4 [pid 5439] <... bpf resumed>) = 4 [pid 5441] write(3, "1000", 4 [pid 5440] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5441] <... write resumed>) = 4 [pid 5439] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5441] close(3) = 0 executing program [pid 5441] write(1, "executing program\n", 18) = 18 [pid 5441] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5441] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5438] +++ exited with 0 +++ [pid 5437] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5438, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5442 attached ./strace-static-x86_64: Process 5443 attached [pid 5443] set_robust_list(0x555568f86660, 24 [pid 5442] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5442 [pid 5443] <... set_robust_list resumed>) = 0 [pid 5442] <... set_robust_list resumed>) = 0 [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] setpgid(0, 0 [pid 5442] <... prctl resumed>) = 0 [pid 5443] <... setpgid resumed>) = 0 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5442] setpgid(0, 0 [pid 5443] <... openat resumed>) = 3 [pid 5442] <... setpgid resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5443 [pid 5443] write(3, "1000", 4) = 4 [pid 5442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5441] <... bpf resumed>) = 5 [pid 5440] <... bpf resumed>) = 5 [pid 5439] <... bpf resumed>) = 5 [pid 5439] exit_group(0 [pid 5443] close(3 [pid 5441] exit_group(0 [pid 5439] <... exit_group resumed>) = ? [pid 5443] <... close resumed>) = 0 [pid 5442] <... openat resumed>) = 3 [pid 5441] <... exit_group resumed>) = ? [pid 5440] exit_group(0 [pid 5439] +++ exited with 0 +++ [pid 5443] write(1, "executing program\n", 18 [pid 5442] write(3, "1000", 4 [pid 5440] <... exit_group resumed>) = ? executing program [pid 5443] <... write resumed>) = 18 [pid 5442] <... write resumed>) = 4 [pid 5441] +++ exited with 0 +++ [pid 5440] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5442] close(3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5442] <... close resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5443] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5442] write(1, "executing program\n", 18 [pid 5232] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5443] <... bpf resumed>) = 3 [pid 5442] <... write resumed>) = 18 [pid 5443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5442] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5443] <... bpf resumed>) = 4 [pid 5442] <... bpf resumed>) = 3 [pid 5443] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5442] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5444 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5444 ./strace-static-x86_64: Process 5445 attached [pid 5444] set_robust_list(0x555568f86660, 24 [pid 5443] <... bpf resumed>) = 5 [pid 5442] <... bpf resumed>) = 5 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5445 [pid 5445] set_robust_list(0x555568f86660, 24 [pid 5444] <... set_robust_list resumed>) = 0 [pid 5442] exit_group(0 [pid 5443] exit_group(0 [pid 5442] <... exit_group resumed>) = ? [pid 5445] <... set_robust_list resumed>) = 0 [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] <... exit_group resumed>) = ? [pid 5442] +++ exited with 0 +++ [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5444] <... prctl resumed>) = 0 [pid 5445] <... prctl resumed>) = 0 [pid 5443] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5446 attached [pid 5445] setpgid(0, 0 [pid 5444] setpgid(0, 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5445] <... setpgid resumed>) = 0 [pid 5444] <... setpgid resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5446] set_robust_list(0x555568f86660, 24) = 0 [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5446] <... prctl resumed>) = 0 [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5446 [pid 5446] setpgid(0, 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5446] <... setpgid resumed>) = 0 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5447 attached [pid 5445] <... openat resumed>) = 3 [pid 5444] <... openat resumed>) = 3 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5447] set_robust_list(0x555568f86660, 24 [pid 5446] write(3, "1000", 4 [pid 5445] write(3, "1000", 4 [pid 5444] write(3, "1000", 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5447 [pid 5447] <... set_robust_list resumed>) = 0 [pid 5446] <... write resumed>) = 4 [pid 5445] <... write resumed>) = 4 [pid 5444] <... write resumed>) = 4 [pid 5446] close(3 [pid 5444] close(3 [pid 5445] close(3executing program ./strace-static-x86_64: Process 5448 attached [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5446] <... close resumed>) = 0 [pid 5445] <... close resumed>) = 0 [pid 5448] set_robust_list(0x555568f86660, 24 [pid 5447] <... prctl resumed>) = 0 [pid 5446] write(1, "executing program\n", 18 [pid 5444] <... close resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5448 [pid 5448] <... set_robust_list resumed>) = 0 [pid 5447] setpgid(0, 0executing program executing program [pid 5446] <... write resumed>) = 18 [pid 5445] write(1, "executing program\n", 18 [pid 5444] write(1, "executing program\n", 18 [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5447] <... setpgid resumed>) = 0 [pid 5446] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5445] <... write resumed>) = 18 [pid 5444] <... write resumed>) = 18 [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5444] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5447] <... openat resumed>) = 3 [pid 5446] <... bpf resumed>) = 3 [pid 5448] <... prctl resumed>) = 0 [pid 5448] setpgid(0, 0) = 0 [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5447] write(3, "1000", 4 executing program [pid 5446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5445] <... bpf resumed>) = 3 [pid 5444] <... bpf resumed>) = 3 [pid 5448] write(3, "1000", 4 [pid 5447] <... write resumed>) = 4 [pid 5448] <... write resumed>) = 4 [pid 5448] close(3) = 0 [pid 5448] write(1, "executing program\n", 18) = 18 [pid 5448] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5447] close(3 [pid 5446] <... bpf resumed>) = 4 [pid 5445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5447] <... close resumed>) = 0 [pid 5446] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5448] <... bpf resumed>) = 4 [pid 5447] write(1, "executing program\n", 18 [pid 5445] <... bpf resumed>) = 4 [pid 5444] <... bpf resumed>) = 4 [pid 5447] <... write resumed>) = 18 [pid 5448] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5447] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5446] <... bpf resumed>) = 5 [pid 5445] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5444] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5448] <... bpf resumed>) = 5 [pid 5447] <... bpf resumed>) = 3 [pid 5446] exit_group(0 [pid 5445] <... bpf resumed>) = 5 [pid 5444] <... bpf resumed>) = 5 [pid 5448] exit_group(0 [pid 5447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5446] <... exit_group resumed>) = ? [pid 5445] exit_group(0 [pid 5448] <... exit_group resumed>) = ? [pid 5444] exit_group(0 [pid 5445] <... exit_group resumed>) = ? [pid 5447] <... bpf resumed>) = 4 [pid 5445] +++ exited with 0 +++ [pid 5446] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5447] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5444] <... exit_group resumed>) = ? [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5448] +++ exited with 0 +++ [pid 5447] <... bpf resumed>) = 5 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5447] exit_group(0) = ? [pid 5233] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5449 ./strace-static-x86_64: Process 5451 attached ./strace-static-x86_64: Process 5450 attached ./strace-static-x86_64: Process 5449 attached [pid 5447] +++ exited with 0 +++ [pid 5444] +++ exited with 0 +++ [pid 5451] set_robust_list(0x555568f86660, 24 [pid 5450] set_robust_list(0x555568f86660, 24 [pid 5449] set_robust_list(0x555568f86660, 24 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5451] <... set_robust_list resumed>) = 0 [pid 5450] <... set_robust_list resumed>) = 0 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5450 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5451 [pid 5451] <... prctl resumed>) = 0 [pid 5450] <... prctl resumed>) = 0 [pid 5449] <... prctl resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5451] setpgid(0, 0./strace-static-x86_64: Process 5452 attached ) = 0 [pid 5450] setpgid(0, 0 [pid 5449] setpgid(0, 0 [pid 5452] set_robust_list(0x555568f86660, 24 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5450] <... setpgid resumed>) = 0 [pid 5449] <... setpgid resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5452 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5453 attached [pid 5452] <... set_robust_list resumed>) = 0 [pid 5451] <... openat resumed>) = 3 [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5453 [pid 5453] set_robust_list(0x555568f86660, 24 [pid 5452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5451] write(3, "1000", 4 [pid 5450] <... openat resumed>) = 3 [pid 5449] <... openat resumed>) = 3 [pid 5453] <... set_robust_list resumed>) = 0 [pid 5451] <... write resumed>) = 4 [pid 5449] write(3, "1000", 4 [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] <... prctl resumed>) = 0 [pid 5451] close(3 [pid 5450] write(3, "1000", 4 [pid 5449] <... write resumed>) = 4 [pid 5452] setpgid(0, 0 [pid 5450] <... write resumed>) = 4 [pid 5452] <... setpgid resumed>) = 0 [pid 5450] close(3 [pid 5453] <... prctl resumed>) = 0 [pid 5452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5451] <... close resumed>) = 0 [pid 5450] <... close resumed>) = 0 executing program executing program [pid 5449] close(3 [pid 5453] setpgid(0, 0 [pid 5451] write(1, "executing program\n", 18 [pid 5449] <... close resumed>) = 0 [pid 5453] <... setpgid resumed>) = 0 [pid 5451] <... write resumed>) = 18 [pid 5449] write(1, "executing program\n", 18 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 5451] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5449] <... write resumed>) = 18 [pid 5452] <... openat resumed>) = 3 [pid 5450] write(1, "executing program\n", 18 [pid 5449] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5453] <... openat resumed>) = 3 [pid 5450] <... write resumed>) = 18 [pid 5453] write(3, "1000", 4 [pid 5452] write(3, "1000", 4 [pid 5451] <... bpf resumed>) = 3 [pid 5450] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5449] <... bpf resumed>) = 3 [pid 5453] <... write resumed>) = 4 [pid 5452] <... write resumed>) = 4 [pid 5451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5453] close(3 [pid 5452] close(3 [pid 5451] <... bpf resumed>) = 4 [pid 5450] <... bpf resumed>) = 3 [pid 5453] <... close resumed>) = 0 [pid 5452] <... close resumed>) = 0 [pid 5450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5453] write(1, "executing program\n", 18 [pid 5452] write(1, "executing program\n", 18 [pid 5451] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5449] <... bpf resumed>) = 4 [pid 5453] <... write resumed>) = 18 [pid 5453] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5452] <... write resumed>) = 18 [pid 5451] <... bpf resumed>) = 5 [pid 5450] <... bpf resumed>) = 4 [pid 5449] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5453] <... bpf resumed>) = 3 [pid 5452] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5451] exit_group(0 [pid 5453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5452] <... bpf resumed>) = 3 [pid 5451] <... exit_group resumed>) = ? [pid 5450] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5449] <... bpf resumed>) = 5 [pid 5453] <... bpf resumed>) = 4 [pid 5452] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5450] <... bpf resumed>) = 5 [pid 5452] <... bpf resumed>) = 4 [pid 5451] +++ exited with 0 +++ [pid 5450] exit_group(0 [pid 5449] exit_group(0 [pid 5453] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5450] <... exit_group resumed>) = ? [pid 5449] <... exit_group resumed>) = ? [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5452] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5453] <... bpf resumed>) = 5 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5453] exit_group(0 [pid 5449] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5454 attached [pid 5453] <... exit_group resumed>) = ? [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5454] set_robust_list(0x555568f86660, 24 [pid 5452] <... bpf resumed>) = 5 [pid 5450] +++ exited with 0 +++ [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5454 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5455 attached [pid 5454] <... set_robust_list resumed>) = 0 [pid 5452] exit_group(0 [pid 5455] set_robust_list(0x555568f86660, 24 [pid 5454] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5455 [pid 5455] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5456 attached [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5454] <... prctl resumed>) = 0 [pid 5456] set_robust_list(0x555568f86660, 24 [pid 5455] <... prctl resumed>) = 0 [pid 5454] setpgid(0, 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5456 [pid 5454] <... setpgid resumed>) = 0 [pid 5456] <... set_robust_list resumed>) = 0 [pid 5455] setpgid(0, 0 [pid 5454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5455] <... setpgid resumed>) = 0 [pid 5453] +++ exited with 0 +++ [pid 5452] +++ exited with 0 +++ [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5454] write(3, "1000", 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5454] <... write resumed>) = 4 [pid 5454] close(3 [pid 5456] <... prctl resumed>) = 0 [pid 5455] <... openat resumed>) = 3 [pid 5454] <... close resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] setpgid(0, 0 [pid 5455] write(3, "1000", 4 [pid 5454] write(1, "executing program\n", 18 executing program [pid 5455] <... write resumed>) = 4 [pid 5454] <... write resumed>) = 18 [pid 5455] close(3 [pid 5456] <... setpgid resumed>) = 0 [pid 5455] <... close resumed>) = 0 [pid 5454] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5457 attached [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5455] write(1, "executing program\n", 18 [pid 5454] <... bpf resumed>) = 3 [pid 5455] <... write resumed>) = 18 [pid 5457] set_robust_list(0x555568f86660, 24 [pid 5455] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5457 [pid 5457] <... set_robust_list resumed>) = 0 [pid 5456] <... openat resumed>) = 3 [pid 5455] <... bpf resumed>) = 3 [pid 5454] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5458 attached ) = 0 [pid 5456] write(3, "1000", 4 [pid 5455] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5458] set_robust_list(0x555568f86660, 24 [pid 5457] setpgid(0, 0 [pid 5456] <... write resumed>) = 4 [pid 5457] <... setpgid resumed>) = 0 [pid 5456] close(3 [pid 5458] <... set_robust_list resumed>) = 0 [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] <... close resumed>) = 0 executing program [pid 5454] <... bpf resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5458 [pid 5456] write(1, "executing program\n", 18 [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5456] <... write resumed>) = 18 [pid 5456] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5454] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5458] <... prctl resumed>) = 0 [pid 5457] <... openat resumed>) = 3 [pid 5458] setpgid(0, 0 [pid 5457] write(3, "1000", 4 [pid 5455] <... bpf resumed>) = 4 [pid 5456] <... bpf resumed>) = 3 [pid 5458] <... setpgid resumed>) = 0 [pid 5457] <... write resumed>) = 4 [pid 5457] close(3 [pid 5456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5455] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5457] <... close resumed>) = 0 [pid 5458] <... openat resumed>) = 3 [pid 5457] write(1, "executing program\n", 18executing program ) = 18 [pid 5456] <... bpf resumed>) = 4 [pid 5458] write(3, "1000", 4 [pid 5457] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5454] <... bpf resumed>) = 5 [pid 5456] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5458] <... write resumed>) = 4 [pid 5455] <... bpf resumed>) = 5 [pid 5457] <... bpf resumed>) = 3 [pid 5458] close(3 [pid 5456] <... bpf resumed>) = 5 [pid 5457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5455] exit_group(0 [pid 5458] <... close resumed>) = 0 [pid 5457] <... bpf resumed>) = 4 [pid 5456] exit_group(0executing program [pid 5454] exit_group(0 [pid 5458] write(1, "executing program\n", 18 [pid 5455] <... exit_group resumed>) = ? [pid 5458] <... write resumed>) = 18 [pid 5456] <... exit_group resumed>) = ? [pid 5454] <... exit_group resumed>) = ? [pid 5457] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5458] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5454] +++ exited with 0 +++ [pid 5458] <... bpf resumed>) = 3 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5458] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5456] +++ exited with 0 +++ [pid 5455] +++ exited with 0 +++ [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5459 attached [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5455, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5459 [pid 5459] set_robust_list(0x555568f86660, 24) = 0 [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5459] setpgid(0, 0) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5460 ./strace-static-x86_64: Process 5461 attached ./strace-static-x86_64: Process 5460 attached [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5458] <... bpf resumed>) = 5 [pid 5457] <... bpf resumed>) = 5 [pid 5461] set_robust_list(0x555568f86660, 24 [pid 5460] set_robust_list(0x555568f86660, 24 [pid 5459] <... openat resumed>) = 3 [pid 5458] exit_group(0 [pid 5461] <... set_robust_list resumed>) = 0 [pid 5460] <... set_robust_list resumed>) = 0 [pid 5457] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5461 [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] write(3, "1000", 4 [pid 5458] <... exit_group resumed>) = ? [pid 5457] <... exit_group resumed>) = ? [pid 5461] <... prctl resumed>) = 0 [pid 5460] <... prctl resumed>) = 0 [pid 5459] <... write resumed>) = 4 [pid 5458] +++ exited with 0 +++ [pid 5457] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5461] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5459] close(3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5460] setpgid(0, 0 [pid 5459] <... close resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5460] <... setpgid resumed>) = 0 [pid 5459] write(1, "executing program\n", 18 [pid 5461] <... setpgid resumed>) = 0 executing program [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] <... write resumed>) = 18 [pid 5461] write(3, "1000", 4 [pid 5460] <... openat resumed>) = 3 [pid 5459] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5460] write(3, "1000", 4 [pid 5459] <... bpf resumed>) = 3 [pid 5461] <... write resumed>) = 4 [pid 5461] close(3 [pid 5460] <... write resumed>) = 4 [pid 5459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5461] <... close resumed>) = 0 [pid 5460] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5461] write(1, "executing program\n", 18 [pid 5460] <... close resumed>) = 0 [pid 5461] <... write resumed>) = 18 [pid 5459] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5462 attached executing program [pid 5461] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5460] write(1, "executing program\n", 18 [pid 5462] set_robust_list(0x555568f86660, 24 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5460] <... write resumed>) = 18 [pid 5461] <... bpf resumed>) = 3 [pid 5461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5462] <... set_robust_list resumed>) = 0 [pid 5460] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5459] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5460] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5463 attached [pid 5461] <... bpf resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5462 [pid 5463] set_robust_list(0x555568f86660, 24 [pid 5462] <... prctl resumed>) = 0 [pid 5460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5459] <... bpf resumed>) = 5 [pid 5462] setpgid(0, 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5463 [pid 5463] <... set_robust_list resumed>) = 0 [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5461] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5463] <... prctl resumed>) = 0 [pid 5463] setpgid(0, 0 [pid 5462] <... setpgid resumed>) = 0 [pid 5461] <... bpf resumed>) = 5 [pid 5460] <... bpf resumed>) = 4 [pid 5459] exit_group(0 [pid 5463] <... setpgid resumed>) = 0 [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] <... openat resumed>) = 3 [pid 5460] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5459] <... exit_group resumed>) = ? [pid 5462] <... openat resumed>) = 3 [pid 5461] exit_group(0 [pid 5463] write(3, "1000", 4 [pid 5461] <... exit_group resumed>) = ? executing program [pid 5463] <... write resumed>) = 4 [pid 5462] write(3, "1000", 4 [pid 5463] close(3 [pid 5462] <... write resumed>) = 4 [pid 5463] <... close resumed>) = 0 [pid 5463] write(1, "executing program\n", 18) = 18 [pid 5463] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5462] close(3) = 0 [pid 5463] <... bpf resumed>) = 3 [pid 5462] write(1, "executing program\n", 18executing program ) = 18 [pid 5463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5462] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5460] <... bpf resumed>) = 5 [pid 5459] +++ exited with 0 +++ [pid 5462] <... bpf resumed>) = 3 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5460] exit_group(0) = ? [pid 5463] <... bpf resumed>) = 4 [pid 5462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5463] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5464 attached [pid 5462] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5464] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5464 [pid 5464] <... set_robust_list resumed>) = 0 [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5461] +++ exited with 0 +++ [pid 5460] +++ exited with 0 +++ [pid 5464] setpgid(0, 0) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5460, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5464] write(3, "1000", 4) = 4 [pid 5464] close(3) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 executing program [pid 5464] write(1, "executing program\n", 18) = 18 [pid 5464] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5464] <... bpf resumed>) = 3 [pid 5464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5463] <... bpf resumed>) = 5 [pid 5462] <... bpf resumed>) = 5 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5463] exit_group(0./strace-static-x86_64: Process 5466 attached ./strace-static-x86_64: Process 5465 attached [pid 5464] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5463] <... exit_group resumed>) = ? [pid 5462] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5465 [pid 5466] set_robust_list(0x555568f86660, 24 [pid 5465] set_robust_list(0x555568f86660, 24 [pid 5466] <... set_robust_list resumed>) = 0 [pid 5465] <... set_robust_list resumed>) = 0 [pid 5464] <... bpf resumed>) = 5 [pid 5462] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5466 [pid 5466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5464] exit_group(0 [pid 5463] +++ exited with 0 +++ [pid 5466] setpgid(0, 0 [pid 5465] <... prctl resumed>) = 0 [pid 5464] <... exit_group resumed>) = ? [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5466] <... setpgid resumed>) = 0 [pid 5465] setpgid(0, 0 [pid 5466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] <... setpgid resumed>) = 0 [pid 5466] <... openat resumed>) = 3 [pid 5464] +++ exited with 0 +++ [pid 5462] +++ exited with 0 +++ [pid 5466] write(3, "1000", 4 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5462, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5466] <... write resumed>) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5466] close(3 [pid 5465] <... openat resumed>) = 3 executing program [pid 5466] <... close resumed>) = 0 [pid 5466] write(1, "executing program\n", 18) = 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5467 attached [pid 5466] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5465] write(3, "1000", 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5468 attached [pid 5467] set_robust_list(0x555568f86660, 24 [pid 5465] <... write resumed>) = 4 [pid 5468] set_robust_list(0x555568f86660, 24 [pid 5467] <... set_robust_list resumed>) = 0 [pid 5466] <... bpf resumed>) = 3 [pid 5465] close(3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5468 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5467 ./strace-static-x86_64: Process 5469 attached [pid 5468] <... set_robust_list resumed>) = 0 [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] <... close resumed>) = 0 [pid 5468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5467] <... prctl resumed>) = 0 [pid 5466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5465] write(1, "executing program\n", 18 [pid 5469] set_robust_list(0x555568f86660, 24 [pid 5468] <... prctl resumed>) = 0 [pid 5467] setpgid(0, 0 [pid 5465] <... write resumed>) = 18 [pid 5469] <... set_robust_list resumed>) = 0 [pid 5467] <... setpgid resumed>) = 0 [pid 5465] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5468] setpgid(0, 0 [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5469 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5468] <... setpgid resumed>) = 0 [pid 5467] <... openat resumed>) = 3 [pid 5465] <... bpf resumed>) = 3 [pid 5466] <... bpf resumed>) = 4 [pid 5467] write(3, "1000", 4 [pid 5469] <... prctl resumed>) = 0 [pid 5468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] <... write resumed>) = 4 [pid 5466] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5469] setpgid(0, 0executing program ) = 0 [pid 5468] <... openat resumed>) = 3 [pid 5467] close(3 [pid 5466] <... bpf resumed>) = 5 [pid 5467] <... close resumed>) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] write(1, "executing program\n", 18 [pid 5466] exit_group(0 [pid 5467] <... write resumed>) = 18 [pid 5468] write(3, "1000", 4 [pid 5467] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5466] <... exit_group resumed>) = ? [pid 5465] <... bpf resumed>) = 4 [pid 5469] <... openat resumed>) = 3 [pid 5468] <... write resumed>) = 4 [pid 5467] <... bpf resumed>) = 3 [pid 5465] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5469] write(3, "1000", 4 [pid 5468] close(3 [pid 5467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5469] <... write resumed>) = 4 [pid 5468] <... close resumed>) = 0 executing program [pid 5465] <... bpf resumed>) = 5 [pid 5465] exit_group(0 [pid 5469] close(3 [pid 5468] write(1, "executing program\n", 18 [pid 5467] <... bpf resumed>) = 4 [pid 5469] <... close resumed>) = 0 [pid 5468] <... write resumed>) = 18 [pid 5468] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5465] <... exit_group resumed>) = ? executing program [pid 5469] write(1, "executing program\n", 18 [pid 5468] <... bpf resumed>) = 3 [pid 5467] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5469] <... write resumed>) = 18 [pid 5468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5469] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5468] <... bpf resumed>) = 4 [pid 5468] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5469] <... bpf resumed>) = 4 [pid 5469] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5466] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5465] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5470 attached ./strace-static-x86_64: Process 5471 attached [pid 5470] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5470 [pid 5470] <... set_robust_list resumed>) = 0 [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5471] set_robust_list(0x555568f86660, 24 [pid 5470] <... prctl resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5471 [pid 5471] <... set_robust_list resumed>) = 0 [pid 5469] <... bpf resumed>) = 5 [pid 5468] <... bpf resumed>) = 5 [pid 5467] <... bpf resumed>) = 5 [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5469] exit_group(0 [pid 5467] exit_group(0 [pid 5471] <... prctl resumed>) = 0 [pid 5471] setpgid(0, 0) = 0 [pid 5469] <... exit_group resumed>) = ? [pid 5467] <... exit_group resumed>) = ? [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5470] setpgid(0, 0 [pid 5468] exit_group(0 [pid 5470] <... setpgid resumed>) = 0 [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5471] <... openat resumed>) = 3 [pid 5470] <... openat resumed>) = 3 [pid 5469] +++ exited with 0 +++ [pid 5468] <... exit_group resumed>) = ? [pid 5471] write(3, "1000", 4) = 4 [pid 5471] close(3) = 0 [pid 5471] write(1, "executing program\n", 18) = 18 [pid 5471] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5470] write(3, "1000", 4 [pid 5471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5470] <... write resumed>) = 4 [pid 5471] <... bpf resumed>) = 4 [pid 5470] close(3 [pid 5467] +++ exited with 0 +++ [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5471] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5472 attached executing program [pid 5470] <... close resumed>) = 0 [pid 5468] +++ exited with 0 +++ [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5472] set_robust_list(0x555568f86660, 24 [pid 5470] write(1, "executing program\n", 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... restart_syscall resumed>) = 0 [pid 5472] <... set_robust_list resumed>) = 0 [pid 5470] <... write resumed>) = 18 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5472 [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5470] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5472] <... prctl resumed>) = 0 [pid 5470] <... bpf resumed>) = 3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5472] setpgid(0, 0 [pid 5470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5473 attached [pid 5472] <... setpgid resumed>) = 0 [pid 5470] <... bpf resumed>) = 4 [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5474 attached [pid 5473] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5473 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5474 [pid 5474] set_robust_list(0x555568f86660, 24 [pid 5473] <... set_robust_list resumed>) = 0 [pid 5474] <... set_robust_list resumed>) = 0 [pid 5472] <... openat resumed>) = 3 [pid 5471] <... bpf resumed>) = 5 [pid 5470] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5472] write(3, "1000", 4 [pid 5470] <... bpf resumed>) = 5 [pid 5474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5471] exit_group(0 [pid 5474] <... prctl resumed>) = 0 [pid 5473] <... prctl resumed>) = 0 [pid 5471] <... exit_group resumed>) = ? [pid 5473] setpgid(0, 0 [pid 5472] <... write resumed>) = 4 [pid 5470] exit_group(0 [pid 5472] close(3 [pid 5470] <... exit_group resumed>) = ? [pid 5474] setpgid(0, 0 [pid 5473] <... setpgid resumed>) = 0 [pid 5472] <... close resumed>) = 0 executing program [pid 5472] write(1, "executing program\n", 18) = 18 [pid 5472] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5474] <... setpgid resumed>) = 0 [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5472] <... bpf resumed>) = 3 [pid 5472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5473] <... openat resumed>) = 3 [pid 5471] +++ exited with 0 +++ [pid 5470] +++ exited with 0 +++ [pid 5474] <... openat resumed>) = 3 [pid 5473] write(3, "1000", 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5473] <... write resumed>) = 4 [pid 5474] write(3, "1000", 4 [pid 5473] close(3 [pid 5472] <... bpf resumed>) = 4 [pid 5474] <... write resumed>) = 4 [pid 5473] <... close resumed>) = 0 executing program [pid 5474] close(3 [pid 5473] write(1, "executing program\n", 18 [pid 5474] <... close resumed>) = 0 [pid 5473] <... write resumed>) = 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5474] write(1, "executing program\n", 18 [pid 5473] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5472] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5474] <... write resumed>) = 18 [pid 5474] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5475 attached [pid 5473] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5475 [pid 5475] set_robust_list(0x555568f86660, 24 [pid 5474] <... bpf resumed>) = 3 [pid 5475] <... set_robust_list resumed>) = 0 [pid 5473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5476 attached [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5476] set_robust_list(0x555568f86660, 24) = 0 [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] <... prctl resumed>) = 0 [pid 5473] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5476 [pid 5475] setpgid(0, 0 [pid 5472] <... bpf resumed>) = 5 [pid 5475] <... setpgid resumed>) = 0 [pid 5476] <... prctl resumed>) = 0 [pid 5476] setpgid(0, 0 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5472] exit_group(0 [pid 5476] <... setpgid resumed>) = 0 [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5475] <... openat resumed>) = 3 [pid 5473] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5472] <... exit_group resumed>) = ? [pid 5474] <... bpf resumed>) = 4 [pid 5476] <... openat resumed>) = 3 [pid 5475] write(3, "1000", 4 [pid 5474] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5473] <... bpf resumed>) = 5 [pid 5476] write(3, "1000", 4 [pid 5475] <... write resumed>) = 4 [pid 5474] <... bpf resumed>) = 5 [pid 5476] <... write resumed>) = 4 [pid 5475] close(3 [pid 5474] exit_group(0 [pid 5472] +++ exited with 0 +++ [pid 5473] exit_group(0 [pid 5476] close(3executing program [pid 5475] <... close resumed>) = 0 [pid 5476] <... close resumed>) = 0 [pid 5475] write(1, "executing program\n", 18 [pid 5474] <... exit_group resumed>) = ? executing program [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5476] write(1, "executing program\n", 18 [pid 5475] <... write resumed>) = 18 [pid 5473] <... exit_group resumed>) = ? [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5476] <... write resumed>) = 18 [pid 5476] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5475] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5476] <... bpf resumed>) = 3 [pid 5476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5475] <... bpf resumed>) = 3 [pid 5475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5476] <... bpf resumed>) = 4 [pid 5476] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5475] <... bpf resumed>) = 4 [pid 5475] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5477 attached [pid 5477] set_robust_list(0x555568f86660, 24 [pid 5474] +++ exited with 0 +++ [pid 5473] +++ exited with 0 +++ [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5477 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5477] <... set_robust_list resumed>) = 0 [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5477] setpgid(0, 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5474, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5477] <... setpgid resumed>) = 0 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5478 attached [pid 5476] <... bpf resumed>) = 5 [pid 5475] <... bpf resumed>) = 5 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5478] set_robust_list(0x555568f86660, 24 [pid 5477] write(3, "1000", 4 [pid 5475] exit_group(0 [pid 5477] <... write resumed>) = 4 [pid 5477] close(3) = 0 [pid 5475] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5479 attached [pid 5478] <... set_robust_list resumed>) = 0 executing program [pid 5477] write(1, "executing program\n", 18 [pid 5476] exit_group(0 [pid 5475] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5478 [pid 5479] set_robust_list(0x555568f86660, 24 [pid 5478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5477] <... write resumed>) = 18 [pid 5476] <... exit_group resumed>) = ? [pid 5479] <... set_robust_list resumed>) = 0 [pid 5478] <... prctl resumed>) = 0 [pid 5477] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5478] setpgid(0, 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5478] <... setpgid resumed>) = 0 [pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5477] <... bpf resumed>) = 3 [pid 5478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5479] <... prctl resumed>) = 0 [pid 5478] <... openat resumed>) = 3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5479 [pid 5477] <... bpf resumed>) = 4 [pid 5477] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5480 attached [pid 5479] setpgid(0, 0 [pid 5478] write(3, "1000", 4 [pid 5477] <... bpf resumed>) = 5 [pid 5480] set_robust_list(0x555568f86660, 24) = 0 [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5477] exit_group(0 [pid 5480] setpgid(0, 0) = 0 [pid 5479] <... setpgid resumed>) = 0 [pid 5478] <... write resumed>) = 4 [pid 5477] <... exit_group resumed>) = ? [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5480 [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5478] close(3) = 0 [pid 5479] <... openat resumed>) = 3 [pid 5478] write(1, "executing program\n", 18executing program ) = 18 [pid 5478] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5480] <... openat resumed>) = 3 [pid 5479] write(3, "1000", 4 [pid 5478] <... bpf resumed>) = 3 [pid 5480] write(3, "1000", 4 [pid 5479] <... write resumed>) = 4 executing program executing program [pid 5478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5479] close(3 [pid 5480] <... write resumed>) = 4 [pid 5480] close(3 [pid 5479] <... close resumed>) = 0 [pid 5479] write(1, "executing program\n", 18 [pid 5480] <... close resumed>) = 0 [pid 5480] write(1, "executing program\n", 18 [pid 5479] <... write resumed>) = 18 [pid 5480] <... write resumed>) = 18 [pid 5479] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5480] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5478] <... bpf resumed>) = 4 [pid 5479] <... bpf resumed>) = 3 [pid 5480] <... bpf resumed>) = 3 [pid 5479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5479] <... bpf resumed>) = 4 [pid 5480] <... bpf resumed>) = 4 [pid 5478] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5480] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5479] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5476] +++ exited with 0 +++ [pid 5480] <... bpf resumed>) = 5 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5476, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5480] exit_group(0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5480] <... exit_group resumed>) = ? [pid 5479] <... bpf resumed>) = 5 [pid 5478] <... bpf resumed>) = 5 [pid 5477] +++ exited with 0 +++ ./strace-static-x86_64: Process 5481 attached [pid 5479] exit_group(0 [pid 5481] set_robust_list(0x555568f86660, 24 [pid 5480] +++ exited with 0 +++ [pid 5479] <... exit_group resumed>) = ? [pid 5481] <... set_robust_list resumed>) = 0 [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5478] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5481 [pid 5481] setpgid(0, 0) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5478] <... exit_group resumed>) = ? [pid 5481] <... openat resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5481] write(3, "1000", 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5481] <... write resumed>) = 4 [pid 5481] close(3) = 0 [pid 5481] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5483 attached ) = 18 [pid 5481] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5482 attached [pid 5483] set_robust_list(0x555568f86660, 24 [pid 5481] <... bpf resumed>) = 3 [pid 5479] +++ exited with 0 +++ [pid 5478] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5483 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5482 [pid 5482] set_robust_list(0x555568f86660, 24 [pid 5481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5483] <... set_robust_list resumed>) = 0 [pid 5482] <... set_robust_list resumed>) = 0 [pid 5481] <... bpf resumed>) = 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5483] <... prctl resumed>) = 0 [pid 5482] <... prctl resumed>) = 0 [pid 5483] setpgid(0, 0 [pid 5482] setpgid(0, 0 [pid 5483] <... setpgid resumed>) = 0 [pid 5482] <... setpgid resumed>) = 0 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5484 attached [pid 5483] <... openat resumed>) = 3 [pid 5481] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5482] <... openat resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5484 [pid 5482] write(3, "1000", 4 [pid 5484] set_robust_list(0x555568f86660, 24 [pid 5483] write(3, "1000", 4 [pid 5482] <... write resumed>) = 4 [pid 5484] <... set_robust_list resumed>) = 0 [pid 5483] <... write resumed>) = 4 [pid 5482] close(3 [pid 5483] close(3 [pid 5482] <... close resumed>) = 0 [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5483] <... close resumed>) = 0 [pid 5482] write(1, "executing program\n", 18./strace-static-x86_64: Process 5485 attached executing program executing program [pid 5483] write(1, "executing program\n", 18 [pid 5482] <... write resumed>) = 18 [pid 5484] <... prctl resumed>) = 0 [pid 5483] <... write resumed>) = 18 [pid 5485] set_robust_list(0x555568f86660, 24 [pid 5482] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5484] setpgid(0, 0 [pid 5483] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5484] <... setpgid resumed>) = 0 [pid 5482] <... bpf resumed>) = 3 [pid 5485] <... set_robust_list resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5485 [pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5482] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5485] <... prctl resumed>) = 0 [pid 5484] <... openat resumed>) = 3 [pid 5483] <... bpf resumed>) = 3 [pid 5485] setpgid(0, 0) = 0 [pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5482] <... bpf resumed>) = 4 [pid 5485] write(3, "1000", 4 [pid 5484] write(3, "1000", 4 [pid 5483] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5482] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5481] <... bpf resumed>) = 5 [pid 5481] exit_group(0 [pid 5485] <... write resumed>) = 4 [pid 5484] <... write resumed>) = 4 [pid 5482] <... bpf resumed>) = 5 [pid 5481] <... exit_group resumed>) = ? [pid 5485] close(3 [pid 5484] close(3 [pid 5485] <... close resumed>) = 0 [pid 5484] <... close resumed>) = 0 executing program executing program [pid 5485] write(1, "executing program\n", 18 [pid 5484] write(1, "executing program\n", 18 [pid 5483] <... bpf resumed>) = 4 [pid 5485] <... write resumed>) = 18 [pid 5484] <... write resumed>) = 18 [pid 5485] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5484] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5483] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5482] exit_group(0 [pid 5485] <... bpf resumed>) = 3 [pid 5484] <... bpf resumed>) = 3 [pid 5482] <... exit_group resumed>) = ? [pid 5485] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5484] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5485] <... bpf resumed>) = 4 [pid 5485] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5484] <... bpf resumed>) = 4 [pid 5484] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5481] +++ exited with 0 +++ [pid 5483] <... bpf resumed>) = 5 [pid 5483] exit_group(0) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5486 attached , child_tidptr=0x555568f86650) = 5486 [pid 5486] set_robust_list(0x555568f86660, 24) = 0 [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5486] setpgid(0, 0) = 0 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5486] write(3, "1000", 4) = 4 [pid 5486] close(3) = 0 [pid 5486] write(1, "executing program\n", 18executing program ) = 18 [pid 5486] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5486] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5486] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5482] +++ exited with 0 +++ [pid 5485] <... bpf resumed>) = 5 [pid 5484] <... bpf resumed>) = 5 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5482, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5485] exit_group(0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5485] <... exit_group resumed>) = ? [pid 5484] exit_group(0) = ? [pid 5483] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5230] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5487 attached ./strace-static-x86_64: Process 5488 attached [pid 5487] set_robust_list(0x555568f86660, 24 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5487 [pid 5488] set_robust_list(0x555568f86660, 24 [pid 5487] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5488 [pid 5488] <... set_robust_list resumed>) = 0 [pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5487] <... prctl resumed>) = 0 [pid 5488] <... prctl resumed>) = 0 [pid 5487] setpgid(0, 0 [pid 5488] setpgid(0, 0 [pid 5487] <... setpgid resumed>) = 0 [pid 5488] <... setpgid resumed>) = 0 [pid 5488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5488] <... openat resumed>) = 3 [pid 5487] <... openat resumed>) = 3 [pid 5487] write(3, "1000", 4 [pid 5486] <... bpf resumed>) = 5 [pid 5485] +++ exited with 0 +++ [pid 5488] write(3, "1000", 4 [pid 5487] <... write resumed>) = 4 [pid 5486] exit_group(0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5488] <... write resumed>) = 4 [pid 5487] close(3 [pid 5486] <... exit_group resumed>) = ? [pid 5488] close(3executing program [pid 5487] <... close resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5488] <... close resumed>) = 0 [pid 5488] write(1, "executing program\n", 18executing program [pid 5487] write(1, "executing program\n", 18 [pid 5488] <... write resumed>) = 18 [pid 5487] <... write resumed>) = 18 [pid 5488] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5487] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5488] <... bpf resumed>) = 3 [pid 5487] <... bpf resumed>) = 3 [pid 5488] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5487] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5488] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5487] <... bpf resumed>) = 4 [pid 5487] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5486] +++ exited with 0 +++ [pid 5484] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5486, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5489 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5489 [pid 5489] set_robust_list(0x555568f86660, 24) = 0 [pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5490 attached ) = 0 [pid 5488] <... bpf resumed>) = 5 [pid 5487] <... bpf resumed>) = 5 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5490 [pid 5490] set_robust_list(0x555568f86660, 24 [pid 5488] exit_group(0 [pid 5489] setpgid(0, 0 [pid 5490] <... set_robust_list resumed>) = 0 [pid 5488] <... exit_group resumed>) = ? [pid 5487] exit_group(0 [pid 5489] <... setpgid resumed>) = 0 [pid 5490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5487] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5490] <... prctl resumed>) = 0 [pid 5490] setpgid(0, 0) = 0 [pid 5490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5491 attached [pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5490] write(3, "1000", 4 [pid 5489] <... openat resumed>) = 3 [pid 5491] set_robust_list(0x555568f86660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5491 [pid 5491] <... set_robust_list resumed>) = 0 [pid 5490] <... write resumed>) = 4 [pid 5490] close(3 [pid 5491] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5490] <... close resumed>) = 0 executing program [pid 5489] write(3, "1000", 4 [pid 5491] <... prctl resumed>) = 0 [pid 5490] write(1, "executing program\n", 18 [pid 5489] <... write resumed>) = 4 [pid 5491] setpgid(0, 0 [pid 5490] <... write resumed>) = 18 [pid 5489] close(3 [pid 5491] <... setpgid resumed>) = 0 [pid 5490] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5490] <... bpf resumed>) = 3 [pid 5489] <... close resumed>) = 0 [pid 5490] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5489] write(1, "executing program\n", 18 [pid 5491] write(3, "1000", 4 [pid 5490] <... bpf resumed>) = 4 [pid 5489] <... write resumed>) = 18 [pid 5489] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5491] <... write resumed>) = 4 [pid 5489] <... bpf resumed>) = 3 [pid 5491] close(3 [pid 5489] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5491] <... close resumed>) = 0 [pid 5491] write(1, "executing program\n", 18 [pid 5490] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5489] <... bpf resumed>) = 4 [pid 5489] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5491] <... write resumed>) = 18 [pid 5488] +++ exited with 0 +++ [pid 5487] +++ exited with 0 +++ [pid 5491] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5491] <... bpf resumed>) = 3 [pid 5491] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5493 attached ./strace-static-x86_64: Process 5492 attached [pid 5491] <... bpf resumed>) = 4 [pid 5492] set_robust_list(0x555568f86660, 24 [pid 5491] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5493] set_robust_list(0x555568f86660, 24 [pid 5492] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5493 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5492 [pid 5493] <... set_robust_list resumed>) = 0 [pid 5492] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5493] setpgid(0, 0 [pid 5492] <... prctl resumed>) = 0 [pid 5493] <... setpgid resumed>) = 0 [pid 5492] setpgid(0, 0 [pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5492] <... setpgid resumed>) = 0 [pid 5492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5493] <... openat resumed>) = 3 [pid 5491] <... bpf resumed>) = 5 [pid 5490] <... bpf resumed>) = 5 [pid 5493] write(3, "1000", 4 [pid 5492] <... openat resumed>) = 3 [pid 5489] <... bpf resumed>) = 5 executing program [pid 5491] exit_group(0 [pid 5493] <... write resumed>) = 4 [pid 5491] <... exit_group resumed>) = ? [pid 5493] close(3 [pid 5492] write(3, "1000", 4 [pid 5489] exit_group(0 [pid 5493] <... close resumed>) = 0 [pid 5492] <... write resumed>) = 4 [pid 5490] exit_group(0 [pid 5493] write(1, "executing program\n", 18 [pid 5492] close(3 [pid 5493] <... write resumed>) = 18 [pid 5492] <... close resumed>) = 0 [pid 5490] <... exit_group resumed>) = ? [pid 5489] <... exit_group resumed>) = ? [pid 5493] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5492] write(1, "executing program\n", 18 [pid 5491] +++ exited with 0 +++ [pid 5490] +++ exited with 0 +++ [pid 5489] +++ exited with 0 +++ executing program [pid 5493] <... bpf resumed>) = 3 [pid 5492] <... write resumed>) = 18 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5492] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5493] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5492] <... bpf resumed>) = 3 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... restart_syscall resumed>) = 0 [pid 5492] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5493] <... bpf resumed>) = 4 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5493] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5493] exit_group(0./strace-static-x86_64: Process 5495 attached ./strace-static-x86_64: Process 5494 attached [pid 5492] <... bpf resumed>) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5493] <... exit_group resumed>) = ? [pid 5492] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5495 ./strace-static-x86_64: Process 5496 attached [pid 5495] set_robust_list(0x555568f86660, 24 [pid 5494] set_robust_list(0x555568f86660, 24 [pid 5492] <... bpf resumed>) = 5 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5494 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5496 [pid 5496] set_robust_list(0x555568f86660, 24) = 0 [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5495] <... set_robust_list resumed>) = 0 [pid 5494] <... set_robust_list resumed>) = 0 [pid 5493] +++ exited with 0 +++ [pid 5492] exit_group(0 [pid 5496] <... prctl resumed>) = 0 [pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5492] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5496] setpgid(0, 0 [pid 5495] <... prctl resumed>) = 0 [pid 5495] setpgid(0, 0) = 0 [pid 5496] <... setpgid resumed>) = 0 [pid 5494] <... prctl resumed>) = 0 [pid 5492] +++ exited with 0 +++ [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5494] setpgid(0, 0 [pid 5496] <... openat resumed>) = 3 [pid 5494] <... setpgid resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5495] <... openat resumed>) = 3 [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5496] write(3, "1000", 4) = 4 [pid 5496] close(3) = 0 executing program [pid 5495] write(3, "1000", 4 [pid 5496] write(1, "executing program\n", 18) = 18 [pid 5496] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5495] <... write resumed>) = 4 [pid 5494] <... openat resumed>) = 3 [pid 5495] close(3 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5494] write(3, "1000", 4 [pid 5495] <... close resumed>) = 0 [pid 5496] <... bpf resumed>) = 3 [pid 5496] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5495] write(1, "executing program\n", 18executing program [pid 5494] <... write resumed>) = 4 ./strace-static-x86_64: Process 5497 attached [pid 5496] <... bpf resumed>) = 4 [pid 5495] <... write resumed>) = 18 [pid 5494] close(3 [pid 5495] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5497] set_robust_list(0x555568f86660, 24 [pid 5496] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5495] <... bpf resumed>) = 3 [pid 5494] <... close resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5497 [pid 5497] <... set_robust_list resumed>) = 0 [pid 5495] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5496] <... bpf resumed>) = 5 [pid 5494] write(1, "executing program\n", 18 [pid 5497] <... prctl resumed>) = 0 [pid 5497] setpgid(0, 0 [pid 5496] exit_group(0 [pid 5495] <... bpf resumed>) = 4 [pid 5494] <... write resumed>) = 18 [pid 5495] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5497] <... setpgid resumed>) = 0 [pid 5496] <... exit_group resumed>) = ? [pid 5494] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5495] <... bpf resumed>) = 5 [pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5495] exit_group(0 [pid 5494] <... bpf resumed>) = 3 [pid 5495] <... exit_group resumed>) = ? [pid 5494] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5497] <... openat resumed>) = 3 [pid 5494] <... bpf resumed>) = 4 [pid 5497] write(3, "1000", 4 [pid 5494] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5497] <... write resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5497] close(3) = 0 executing program [pid 5497] write(1, "executing program\n", 18) = 18 [pid 5497] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5498 attached [pid 5496] +++ exited with 0 +++ [pid 5495] +++ exited with 0 +++ [pid 5498] set_robust_list(0x555568f86660, 24 [pid 5497] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5498 [pid 5498] <... set_robust_list resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5498] setpgid(0, 0 [pid 5497] <... bpf resumed>) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5498] <... setpgid resumed>) = 0 [pid 5497] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5499 attached [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5499] set_robust_list(0x555568f86660, 24 [pid 5498] <... openat resumed>) = 3 [pid 5499] <... set_robust_list resumed>) = 0 [pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5499 ./strace-static-x86_64: Process 5500 attached [pid 5499] <... prctl resumed>) = 0 [pid 5498] write(3, "1000", 4 [pid 5500] set_robust_list(0x555568f86660, 24 [pid 5499] setpgid(0, 0 [pid 5498] <... write resumed>) = 4 [pid 5500] <... set_robust_list resumed>) = 0 [pid 5498] close(3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5500 [pid 5500] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5499] <... setpgid resumed>) = 0 [pid 5498] <... close resumed>) = 0 [pid 5497] <... bpf resumed>) = 5 [pid 5494] <... bpf resumed>) = 5 [pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5498] write(1, "executing program\n", 18 [pid 5497] exit_group(0executing program [pid 5500] <... prctl resumed>) = 0 [pid 5494] exit_group(0 [pid 5500] setpgid(0, 0 [pid 5498] <... write resumed>) = 18 [pid 5497] <... exit_group resumed>) = ? [pid 5494] <... exit_group resumed>) = ? [pid 5500] <... setpgid resumed>) = 0 [pid 5499] <... openat resumed>) = 3 [pid 5498] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5497] +++ exited with 0 +++ [pid 5499] write(3, "1000", 4 [pid 5500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5499] <... write resumed>) = 4 [pid 5498] <... bpf resumed>) = 3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5500] <... openat resumed>) = 3 [pid 5499] close(3 [pid 5498] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5494] +++ exited with 0 +++ [pid 5500] write(3, "1000", 4 [pid 5499] <... close resumed>) = 0 [pid 5498] <... bpf resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5494, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5499] write(1, "executing program\n", 18) = 18 [pid 5499] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5500] <... write resumed>) = 4 [pid 5500] close(3 [pid 5499] <... bpf resumed>) = 3 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5499] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5498] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5500] <... close resumed>) = 0 [pid 5499] <... bpf resumed>) = 4 [pid 5499] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5500] write(1, "executing program\n", 18 [pid 5498] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 executing program [pid 5500] <... write resumed>) = 18 [pid 5499] <... bpf resumed>) = 5 [pid 5498] exit_group(0 [pid 5500] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5499] exit_group(0 [pid 5498] <... exit_group resumed>) = ? [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5499] <... exit_group resumed>) = ? [pid 5500] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5502 attached ./strace-static-x86_64: Process 5501 attached [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5501 [pid 5501] set_robust_list(0x555568f86660, 24 [pid 5502] set_robust_list(0x555568f86660, 24 [pid 5501] <... set_robust_list resumed>) = 0 [pid 5500] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5502] <... set_robust_list resumed>) = 0 [pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5502 [pid 5501] <... prctl resumed>) = 0 [pid 5501] setpgid(0, 0) = 0 [pid 5502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5502] setpgid(0, 0) = 0 [pid 5501] <... openat resumed>) = 3 [pid 5502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5501] write(3, "1000", 4 [pid 5502] <... openat resumed>) = 3 [pid 5501] <... write resumed>) = 4 [pid 5502] write(3, "1000", 4 [pid 5501] close(3 [pid 5502] <... write resumed>) = 4 [pid 5501] <... close resumed>) = 0 executing program [pid 5502] close(3 [pid 5501] write(1, "executing program\n", 18 [pid 5502] <... close resumed>) = 0 [pid 5501] <... write resumed>) = 18 executing program [pid 5502] write(1, "executing program\n", 18 [pid 5501] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5502] <... write resumed>) = 18 [pid 5502] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5501] <... bpf resumed>) = 3 [pid 5502] <... bpf resumed>) = 3 [pid 5501] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5499] +++ exited with 0 +++ [pid 5498] +++ exited with 0 +++ [pid 5502] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5501] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5498, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5502] <... bpf resumed>) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5503 attached [pid 5502] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5501] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5503 ./strace-static-x86_64: Process 5504 attached [pid 5503] set_robust_list(0x555568f86660, 24 [pid 5502] <... bpf resumed>) = 5 [pid 5501] <... bpf resumed>) = 5 [pid 5500] <... bpf resumed>) = 5 [pid 5504] set_robust_list(0x555568f86660, 24 [pid 5503] <... set_robust_list resumed>) = 0 [pid 5502] exit_group(0 [pid 5501] exit_group(0 [pid 5500] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5504 [pid 5504] <... set_robust_list resumed>) = 0 [pid 5503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5502] <... exit_group resumed>) = ? [pid 5500] <... exit_group resumed>) = ? [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5502] +++ exited with 0 +++ [pid 5501] <... exit_group resumed>) = ? [pid 5503] <... prctl resumed>) = 0 [pid 5503] setpgid(0, 0) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5504] <... prctl resumed>) = 0 [pid 5504] setpgid(0, 0) = 0 [pid 5503] <... openat resumed>) = 3 [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5503] write(3, "1000", 4 [pid 5504] write(3, "1000", 4) = 4 [pid 5503] <... write resumed>) = 4 [pid 5504] close(3 [pid 5503] close(3 [pid 5504] <... close resumed>) = 0 [pid 5503] <... close resumed>) = 0 [pid 5504] write(1, "executing program\n", 18 [pid 5503] write(1, "executing program\n", 18executing program executing program [pid 5504] <... write resumed>) = 18 [pid 5503] <... write resumed>) = 18 [pid 5504] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5503] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5504] <... bpf resumed>) = 3 [pid 5504] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5503] <... bpf resumed>) = 3 [pid 5504] <... bpf resumed>) = 4 [pid 5503] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5504] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5503] <... bpf resumed>) = 4 [pid 5503] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5505 attached , child_tidptr=0x555568f86650) = 5505 [pid 5505] set_robust_list(0x555568f86660, 24) = 0 [pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5505] setpgid(0, 0) = 0 [pid 5501] +++ exited with 0 +++ [pid 5500] +++ exited with 0 +++ [pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5500, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5505] <... openat resumed>) = 3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5505] write(3, "1000", 4) = 4 [pid 5505] close(3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5505] <... close resumed>) = 0 ./strace-static-x86_64: Process 5506 attached [pid 5506] set_robust_list(0x555568f86660, 24 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5506 [pid 5505] write(1, "executing program\n", 18./strace-static-x86_64: Process 5507 attached [pid 5506] <... set_robust_list resumed>) = 0 [pid 5505] <... write resumed>) = 18 [pid 5506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5507] set_robust_list(0x555568f86660, 24 [pid 5505] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5507 [pid 5507] <... set_robust_list resumed>) = 0 [pid 5506] setpgid(0, 0 [pid 5505] <... bpf resumed>) = 3 [pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5506] <... setpgid resumed>) = 0 [pid 5505] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5507] <... prctl resumed>) = 0 [pid 5506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5507] setpgid(0, 0 [pid 5506] <... openat resumed>) = 3 [pid 5506] write(3, "1000", 4 [pid 5507] <... setpgid resumed>) = 0 [pid 5505] <... bpf resumed>) = 4 [pid 5504] <... bpf resumed>) = 5 [pid 5503] <... bpf resumed>) = 5 [pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5506] <... write resumed>) = 4 [pid 5505] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5504] exit_group(0 [pid 5503] exit_group(0 [pid 5505] <... bpf resumed>) = 5 [pid 5506] close(3 [pid 5504] <... exit_group resumed>) = ? [pid 5507] <... openat resumed>) = 3 [pid 5506] <... close resumed>) = 0 executing program [pid 5505] exit_group(0 [pid 5504] +++ exited with 0 +++ [pid 5503] <... exit_group resumed>) = ? [pid 5506] write(1, "executing program\n", 18 [pid 5505] <... exit_group resumed>) = ? [pid 5506] <... write resumed>) = 18 [pid 5507] write(3, "1000", 4 [pid 5506] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5507] <... write resumed>) = 4 [pid 5507] close(3) = 0 [pid 5506] <... bpf resumed>) = 3 [pid 5507] write(1, "executing program\n", 18executing program [pid 5506] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5504, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5507] <... write resumed>) = 18 [pid 5507] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5506] <... bpf resumed>) = 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5507] <... bpf resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5507] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5506] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5507] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5508 attached [pid 5508] set_robust_list(0x555568f86660, 24 [pid 5507] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5505] +++ exited with 0 +++ [pid 5503] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5508 [pid 5508] <... set_robust_list resumed>) = 0 [pid 5508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5508] <... prctl resumed>) = 0 [pid 5508] setpgid(0, 0) = 0 [pid 5508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5508] write(3, "1000", 4) = 4 [pid 5508] close(3) = 0 [pid 5508] write(1, "executing program\n", 18 [pid 5507] <... bpf resumed>) = 5 executing program [pid 5506] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5508] <... write resumed>) = 18 [pid 5507] exit_group(0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5508] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5507] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5510 attached ./strace-static-x86_64: Process 5509 attached [pid 5506] exit_group(0 [pid 5510] set_robust_list(0x555568f86660, 24 [pid 5509] set_robust_list(0x555568f86660, 24 [pid 5508] <... bpf resumed>) = 3 [pid 5506] <... exit_group resumed>) = ? [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5509 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5510 [pid 5510] <... set_robust_list resumed>) = 0 [pid 5509] <... set_robust_list resumed>) = 0 [pid 5508] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5507] +++ exited with 0 +++ [pid 5506] +++ exited with 0 +++ [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5510] <... prctl resumed>) = 0 [pid 5509] <... prctl resumed>) = 0 [pid 5508] <... bpf resumed>) = 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5506, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5510] setpgid(0, 0 [pid 5509] setpgid(0, 0) = 0 [pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5509] write(3, "1000", 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5509] <... write resumed>) = 4 [pid 5510] <... setpgid resumed>) = 0 executing program [pid 5509] close(3 [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5509] <... close resumed>) = 0 [pid 5510] <... openat resumed>) = 3 [pid 5509] write(1, "executing program\n", 18 [pid 5508] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5509] <... write resumed>) = 18 [pid 5509] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5510] write(3, "1000", 4 [pid 5509] <... bpf resumed>) = 3 [pid 5510] <... write resumed>) = 4 [pid 5510] close(3) = 0 executing program [pid 5509] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5510] write(1, "executing program\n", 18) = 18 [pid 5509] <... bpf resumed>) = 4 [pid 5510] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5510] <... bpf resumed>) = 3 [pid 5509] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5510] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5510] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5511 attached [pid 5509] <... bpf resumed>) = 5 [pid 5508] <... bpf resumed>) = 5 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5511] set_robust_list(0x555568f86660, 24 [pid 5510] <... bpf resumed>) = 5 [pid 5509] exit_group(0 [pid 5508] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5511 [pid 5511] <... set_robust_list resumed>) = 0 [pid 5510] exit_group(0 [pid 5509] <... exit_group resumed>) = ? [pid 5508] <... exit_group resumed>) = ? [pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5510] <... exit_group resumed>) = ? [pid 5509] +++ exited with 0 +++ [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5511] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5512 attached [pid 5511] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5509, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5511] <... setpgid resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5512] set_robust_list(0x555568f86660, 24) = 0 [pid 5512] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5512 [pid 5512] <... prctl resumed>) = 0 [pid 5511] <... openat resumed>) = 3 [pid 5510] +++ exited with 0 +++ [pid 5508] +++ exited with 0 +++ [pid 5236] <... restart_syscall resumed>) = 0 [pid 5512] setpgid(0, 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5510, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5512] <... setpgid resumed>) = 0 [pid 5511] write(3, "1000", 4 [pid 5512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5511] <... write resumed>) = 4 [pid 5511] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5511] <... close resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5512] <... openat resumed>) = 3 executing program ./strace-static-x86_64: Process 5513 attached [pid 5511] write(1, "executing program\n", 18 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5514 ./strace-static-x86_64: Process 5515 attached [pid 5513] set_robust_list(0x555568f86660, 24 [pid 5511] <... write resumed>) = 18 [pid 5513] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5514 attached [pid 5515] set_robust_list(0x555568f86660, 24 [pid 5512] write(3, "1000", 4 [pid 5511] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5513 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5515 [pid 5515] <... set_robust_list resumed>) = 0 [pid 5514] set_robust_list(0x555568f86660, 24 [pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5512] <... write resumed>) = 4 [pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5514] <... set_robust_list resumed>) = 0 [pid 5512] close(3 [pid 5511] <... bpf resumed>) = 3 [pid 5515] <... prctl resumed>) = 0 [pid 5513] <... prctl resumed>) = 0 [pid 5512] <... close resumed>) = 0 [pid 5511] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5515] setpgid(0, 0 [pid 5514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5513] setpgid(0, 0 [pid 5512] write(1, "executing program\n", 18 [pid 5515] <... setpgid resumed>) = 0 [pid 5514] <... prctl resumed>) = 0 [pid 5513] <... setpgid resumed>) = 0 [pid 5512] <... write resumed>) = 18 [pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5514] setpgid(0, 0 [pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5511] <... bpf resumed>) = 4 [pid 5512] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5514] <... setpgid resumed>) = 0 [pid 5514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5513] <... openat resumed>) = 3 [pid 5512] <... bpf resumed>) = 3 [pid 5511] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5515] <... openat resumed>) = 3 [pid 5514] <... openat resumed>) = 3 [pid 5513] write(3, "1000", 4 [pid 5512] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5511] <... bpf resumed>) = 5 [pid 5515] write(3, "1000", 4) = 4 [pid 5514] write(3, "1000", 4 [pid 5513] <... write resumed>) = 4 [pid 5512] <... bpf resumed>) = 4 [pid 5511] exit_group(0 [pid 5515] close(3 [pid 5514] <... write resumed>) = 4 [pid 5513] close(3 [pid 5515] <... close resumed>) = 0 executing program executing program [pid 5511] <... exit_group resumed>) = ? [pid 5514] close(3 [pid 5513] <... close resumed>) = 0 [pid 5515] write(1, "executing program\n", 18 [pid 5514] <... close resumed>) = 0 [pid 5513] write(1, "executing program\n", 18 [pid 5514] write(1, "executing program\n", 18 [pid 5513] <... write resumed>) = 18 [pid 5512] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5514] <... write resumed>) = 18 [pid 5513] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5512] <... bpf resumed>) = 5 [pid 5514] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5513] <... bpf resumed>) = 3 [pid 5515] <... write resumed>) = 18 [pid 5515] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5514] <... bpf resumed>) = 3 [pid 5513] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5512] exit_group(0 [pid 5515] <... bpf resumed>) = 3 [pid 5515] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5514] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5513] <... bpf resumed>) = 4 [pid 5512] <... exit_group resumed>) = ? [pid 5515] <... bpf resumed>) = 4 [pid 5514] <... bpf resumed>) = 4 [pid 5515] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5513] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5514] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5512] +++ exited with 0 +++ [pid 5511] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5511, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5516 ./strace-static-x86_64: Process 5516 attached [pid 5516] set_robust_list(0x555568f86660, 24 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5516] <... set_robust_list resumed>) = 0 [pid 5516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5517 attached [pid 5517] set_robust_list(0x555568f86660, 24 [pid 5516] setpgid(0, 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5517 [pid 5517] <... set_robust_list resumed>) = 0 [pid 5516] <... setpgid resumed>) = 0 [pid 5516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5516] <... openat resumed>) = 3 [pid 5517] <... prctl resumed>) = 0 [pid 5516] write(3, "1000", 4 [pid 5517] setpgid(0, 0 [pid 5516] <... write resumed>) = 4 [pid 5517] <... setpgid resumed>) = 0 [pid 5516] close(3 [pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5516] <... close resumed>) = 0 executing program [pid 5513] <... bpf resumed>) = 5 [pid 5515] <... bpf resumed>) = 5 [pid 5514] <... bpf resumed>) = 5 [pid 5516] write(1, "executing program\n", 18) = 18 [pid 5515] exit_group(0 [pid 5513] exit_group(0 [pid 5517] <... openat resumed>) = 3 [pid 5516] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5515] <... exit_group resumed>) = ? [pid 5514] exit_group(0 [pid 5517] write(3, "1000", 4 [pid 5513] <... exit_group resumed>) = ? [pid 5514] <... exit_group resumed>) = ? [pid 5516] <... bpf resumed>) = 3 [pid 5516] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5515] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5516] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5517] <... write resumed>) = 4 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5517] close(3) = 0 executing program [pid 5517] write(1, "executing program\n", 18) = 18 [pid 5517] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5517] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5518 attached [pid 5517] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5514] +++ exited with 0 +++ [pid 5513] +++ exited with 0 +++ [pid 5518] set_robust_list(0x555568f86660, 24 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5517] <... bpf resumed>) = 4 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5518 [pid 5516] <... bpf resumed>) = 5 [pid 5517] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5518] <... set_robust_list resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5516] exit_group(0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5518] <... prctl resumed>) = 0 [pid 5517] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5518] setpgid(0, 0) = 0 [pid 5518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5518] <... openat resumed>) = 3 [pid 5517] exit_group(0 [pid 5516] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5519 attached [pid 5519] set_robust_list(0x555568f86660, 24 [pid 5518] write(3, "1000", 4 [pid 5517] <... exit_group resumed>) = ? [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5519 [pid 5518] <... write resumed>) = 4 [pid 5519] <... set_robust_list resumed>) = 0 [pid 5518] close(3 [pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5518] <... close resumed>) = 0 [pid 5519] setpgid(0, 0 [pid 5518] write(1, "executing program\n", 18executing program [pid 5519] <... setpgid resumed>) = 0 [pid 5518] <... write resumed>) = 18 [pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5518] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5518] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5519] <... openat resumed>) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5519] write(3, "1000", 4) = 4 [pid 5519] close(3) = 0 [pid 5519] write(1, "executing program\n", 18./strace-static-x86_64: Process 5520 attached [pid 5518] <... bpf resumed>) = 4 [pid 5517] +++ exited with 0 +++ [pid 5516] +++ exited with 0 +++ executing program [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5520 [pid 5519] <... write resumed>) = 18 [pid 5520] set_robust_list(0x555568f86660, 24 [pid 5518] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5520] <... set_robust_list resumed>) = 0 [pid 5519] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5519] <... bpf resumed>) = 3 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5520] <... prctl resumed>) = 0 [pid 5519] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5520] setpgid(0, 0 [pid 5518] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5521 attached [pid 5520] <... setpgid resumed>) = 0 [pid 5521] set_robust_list(0x555568f86660, 24 [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5518] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5521 ./strace-static-x86_64: Process 5522 attached [pid 5521] <... set_robust_list resumed>) = 0 [pid 5518] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5522 [pid 5522] set_robust_list(0x555568f86660, 24 [pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5520] <... openat resumed>) = 3 [pid 5519] <... bpf resumed>) = 4 [pid 5518] +++ exited with 0 +++ [pid 5521] <... prctl resumed>) = 0 [pid 5522] <... set_robust_list resumed>) = 0 [pid 5520] write(3, "1000", 4 [pid 5519] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5521] setpgid(0, 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5521] <... setpgid resumed>) = 0 [pid 5520] <... write resumed>) = 4 [pid 5522] <... prctl resumed>) = 0 [pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5520] close(3 [pid 5522] setpgid(0, 0 [pid 5520] <... close resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5522] <... setpgid resumed>) = 0 [pid 5521] <... openat resumed>) = 3 [pid 5520] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5523 attached [pid 5522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5521] write(3, "1000", 4 [pid 5520] <... write resumed>) = 18 [pid 5521] <... write resumed>) = 4 [pid 5520] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5523] set_robust_list(0x555568f86660, 24 [pid 5521] close(3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5523 [pid 5523] <... set_robust_list resumed>) = 0 [pid 5523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5522] <... openat resumed>) = 3 [pid 5521] <... close resumed>) = 0 [pid 5520] <... bpf resumed>) = 3 executing program [pid 5523] <... prctl resumed>) = 0 [pid 5522] write(3, "1000", 4 [pid 5521] write(1, "executing program\n", 18 [pid 5520] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5523] setpgid(0, 0 [pid 5522] <... write resumed>) = 4 [pid 5521] <... write resumed>) = 18 [pid 5523] <... setpgid resumed>) = 0 [pid 5523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5522] close(3 [pid 5521] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5523] <... openat resumed>) = 3 [pid 5522] <... close resumed>) = 0 [pid 5520] <... bpf resumed>) = 4 [pid 5523] write(3, "1000", 4 [pid 5522] write(1, "executing program\n", 18 [pid 5521] <... bpf resumed>) = 3 [pid 5520] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5519] <... bpf resumed>) = 5 [pid 5523] <... write resumed>) = 4 [pid 5522] <... write resumed>) = 18 [pid 5521] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5520] <... bpf resumed>) = 5 [pid 5523] close(3 [pid 5522] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5519] exit_group(0 [pid 5521] <... bpf resumed>) = 4 [pid 5523] <... close resumed>) = 0 [pid 5520] exit_group(0 [pid 5519] <... exit_group resumed>) = ? executing program [pid 5523] write(1, "executing program\n", 18 [pid 5522] <... bpf resumed>) = 3 [pid 5521] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5520] <... exit_group resumed>) = ? [pid 5523] <... write resumed>) = 18 [pid 5523] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5522] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5523] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5522] <... bpf resumed>) = 4 [pid 5523] <... bpf resumed>) = 4 [pid 5522] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5523] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5519] +++ exited with 0 +++ [pid 5520] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5520, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5523] <... bpf resumed>) = 5 [pid 5522] <... bpf resumed>) = 5 [pid 5521] <... bpf resumed>) = 5 [pid 5522] exit_group(0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5522] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5525 attached ./strace-static-x86_64: Process 5524 attached [pid 5523] exit_group(0 [pid 5521] exit_group(0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5524 [pid 5525] set_robust_list(0x555568f86660, 24 [pid 5524] set_robust_list(0x555568f86660, 24 [pid 5523] <... exit_group resumed>) = ? [pid 5522] +++ exited with 0 +++ [pid 5521] <... exit_group resumed>) = ? [pid 5525] <... set_robust_list resumed>) = 0 [pid 5524] <... set_robust_list resumed>) = 0 [pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5525] <... prctl resumed>) = 0 [pid 5524] <... prctl resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5525] setpgid(0, 0 [pid 5524] setpgid(0, 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5525] <... setpgid resumed>) = 0 [pid 5524] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5526 attached [pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5525 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5526 [pid 5526] set_robust_list(0x555568f86660, 24 [pid 5525] <... openat resumed>) = 3 [pid 5524] <... openat resumed>) = 3 [pid 5525] write(3, "1000", 4 [pid 5526] <... set_robust_list resumed>) = 0 [pid 5524] write(3, "1000", 4 [pid 5523] +++ exited with 0 +++ [pid 5521] +++ exited with 0 +++ [pid 5526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5525] <... write resumed>) = 4 [pid 5524] <... write resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5521, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5525] close(3 [pid 5526] <... prctl resumed>) = 0 [pid 5525] <... close resumed>) = 0 [pid 5524] close(3 [pid 5526] setpgid(0, 0 [pid 5525] write(1, "executing program\n", 18executing program executing program [pid 5524] <... close resumed>) = 0 [pid 5525] <... write resumed>) = 18 [pid 5524] write(1, "executing program\n", 18 [pid 5526] <... setpgid resumed>) = 0 [pid 5525] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5524] <... write resumed>) = 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5528 attached ./strace-static-x86_64: Process 5527 attached [pid 5526] <... openat resumed>) = 3 [pid 5525] <... bpf resumed>) = 3 [pid 5524] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5528] set_robust_list(0x555568f86660, 24) = 0 [pid 5527] set_robust_list(0x555568f86660, 24 [pid 5526] write(3, "1000", 4 [pid 5525] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5524] <... bpf resumed>) = 3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5527 [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5527] <... set_robust_list resumed>) = 0 [pid 5528] <... prctl resumed>) = 0 [pid 5528] setpgid(0, 0 [pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5526] <... write resumed>) = 4 [pid 5525] <... bpf resumed>) = 4 [pid 5524] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5528 [pid 5528] <... setpgid resumed>) = 0 [pid 5527] <... prctl resumed>) = 0 [pid 5526] close(3 [pid 5527] setpgid(0, 0 [pid 5526] <... close resumed>) = 0 [pid 5525] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5524] <... bpf resumed>) = 4 executing program [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5527] <... setpgid resumed>) = 0 [pid 5526] write(1, "executing program\n", 18 [pid 5524] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5526] <... write resumed>) = 18 [pid 5526] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5528] <... openat resumed>) = 3 [pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5526] <... bpf resumed>) = 3 [pid 5526] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5528] write(3, "1000", 4 [pid 5527] <... openat resumed>) = 3 [pid 5526] <... bpf resumed>) = 4 [pid 5528] <... write resumed>) = 4 [pid 5527] write(3, "1000", 4 [pid 5528] close(3 [pid 5527] <... write resumed>) = 4 [pid 5528] <... close resumed>) = 0 [pid 5527] close(3 [pid 5528] write(1, "executing program\n", 18 [pid 5527] <... close resumed>) = 0 [pid 5527] write(1, "executing program\n", 18 [pid 5526] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program executing program [pid 5528] <... write resumed>) = 18 [pid 5528] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5527] <... write resumed>) = 18 [pid 5527] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5528] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5527] <... bpf resumed>) = 3 [pid 5528] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5527] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5526] <... bpf resumed>) = 5 [pid 5525] <... bpf resumed>) = 5 [pid 5524] <... bpf resumed>) = 5 [pid 5528] <... bpf resumed>) = 5 [pid 5526] exit_group(0 [pid 5525] exit_group(0 [pid 5524] exit_group(0 [pid 5528] exit_group(0 [pid 5527] <... bpf resumed>) = 4 [pid 5526] <... exit_group resumed>) = ? [pid 5525] <... exit_group resumed>) = ? [pid 5524] <... exit_group resumed>) = ? [pid 5528] <... exit_group resumed>) = ? [pid 5527] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5526] +++ exited with 0 +++ [pid 5525] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5527] <... bpf resumed>) = 5 [pid 5524] +++ exited with 0 +++ ./strace-static-x86_64: Process 5529 attached [pid 5527] exit_group(0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5529] set_robust_list(0x555568f86660, 24) = 0 [pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5530 attached [pid 5528] +++ exited with 0 +++ [pid 5527] <... exit_group resumed>) = ? [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5529 [pid 5530] set_robust_list(0x555568f86660, 24 [pid 5529] setpgid(0, 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5530 [pid 5529] <... setpgid resumed>) = 0 [pid 5530] <... set_robust_list resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5532 attached [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5529] <... openat resumed>) = 3 [pid 5527] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5530] <... prctl resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5532 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5527, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5532] set_robust_list(0x555568f86660, 24 [pid 5529] write(3, "1000", 4 [pid 5530] setpgid(0, 0) = 0 [pid 5529] <... write resumed>) = 4 [pid 5532] <... set_robust_list resumed>) = 0 [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5533 attached ) = 0 [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5529] close(3 [pid 5533] set_robust_list(0x555568f86660, 24 [pid 5532] setpgid(0, 0 [pid 5530] <... openat resumed>) = 3 [pid 5529] <... close resumed>) = 0 [pid 5532] <... setpgid resumed>) = 0 executing program [pid 5529] write(1, "executing program\n", 18 [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5530] write(3, "1000", 4 [pid 5529] <... write resumed>) = 18 [pid 5530] <... write resumed>) = 4 [pid 5529] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5533] <... set_robust_list resumed>) = 0 [pid 5532] <... openat resumed>) = 3 [pid 5530] close(3 [pid 5529] <... bpf resumed>) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5533 [pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5530] <... close resumed>) = 0 [pid 5533] <... prctl resumed>) = 0 [pid 5532] write(3, "1000", 4executing program [pid 5530] write(1, "executing program\n", 18 [pid 5529] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5533] setpgid(0, 0 [pid 5532] <... write resumed>) = 4 [pid 5530] <... write resumed>) = 18 [pid 5532] close(3 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5530] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5533] <... setpgid resumed>) = 0 [pid 5532] <... close resumed>) = 0 [pid 5529] <... bpf resumed>) = 4 executing program [pid 5532] write(1, "executing program\n", 18 [pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5532] <... write resumed>) = 18 [pid 5530] <... bpf resumed>) = 3 [pid 5529] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5534 attached [pid 5532] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5530] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5529] <... bpf resumed>) = 5 [pid 5533] <... openat resumed>) = 3 [pid 5534] set_robust_list(0x555568f86660, 24 [pid 5532] <... bpf resumed>) = 3 [pid 5534] <... set_robust_list resumed>) = 0 [pid 5533] write(3, "1000", 4 [pid 5532] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5530] <... bpf resumed>) = 4 [pid 5529] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5534 [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5533] <... write resumed>) = 4 [pid 5530] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5529] <... exit_group resumed>) = ? [pid 5534] setpgid(0, 0 [pid 5533] close(3 [pid 5534] <... setpgid resumed>) = 0 [pid 5533] <... close resumed>) = 0 [pid 5530] <... bpf resumed>) = 5 [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5532] <... bpf resumed>) = 4 [pid 5533] write(1, "executing program\n", 18executing program [pid 5530] exit_group(0 [pid 5534] <... openat resumed>) = 3 [pid 5533] <... write resumed>) = 18 [pid 5532] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5530] <... exit_group resumed>) = ? [pid 5534] write(3, "1000", 4 [pid 5533] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5534] <... write resumed>) = 4 [pid 5533] <... bpf resumed>) = 3 [pid 5534] close(3 [pid 5533] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5534] <... close resumed>) = 0 [pid 5533] <... bpf resumed>) = 4 [pid 5534] write(1, "executing program\n", 18) = 18 [pid 5534] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5533] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5534] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5534] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5532] <... bpf resumed>) = 5 [pid 5532] exit_group(0) = ? [pid 5529] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5535 attached , child_tidptr=0x555568f86650) = 5535 [pid 5535] set_robust_list(0x555568f86660, 24 [pid 5534] <... bpf resumed>) = 5 [pid 5533] <... bpf resumed>) = 5 [pid 5532] +++ exited with 0 +++ [pid 5530] +++ exited with 0 +++ [pid 5534] exit_group(0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5534] <... exit_group resumed>) = ? [pid 5535] <... set_robust_list resumed>) = 0 [pid 5533] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5533] <... exit_group resumed>) = ? [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5535] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5536 attached [pid 5535] setpgid(0, 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5536 [pid 5536] set_robust_list(0x555568f86660, 24 [pid 5535] <... setpgid resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5536] <... set_robust_list resumed>) = 0 [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5537 attached [pid 5536] <... prctl resumed>) = 0 [pid 5537] set_robust_list(0x555568f86660, 24 [pid 5536] setpgid(0, 0 [pid 5537] <... set_robust_list resumed>) = 0 [pid 5535] <... openat resumed>) = 3 [pid 5536] <... setpgid resumed>) = 0 [pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5535] write(3, "1000", 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5537 [pid 5537] <... prctl resumed>) = 0 [pid 5537] setpgid(0, 0 [pid 5536] <... openat resumed>) = 3 [pid 5535] <... write resumed>) = 4 [pid 5537] <... setpgid resumed>) = 0 [pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5535] close(3 [pid 5536] write(3, "1000", 4 [pid 5535] <... close resumed>) = 0 executing program [pid 5537] <... openat resumed>) = 3 [pid 5536] <... write resumed>) = 4 [pid 5535] write(1, "executing program\n", 18 [pid 5536] close(3 [pid 5535] <... write resumed>) = 18 [pid 5537] write(3, "1000", 4) = 4 executing program [pid 5537] close(3) = 0 [pid 5537] write(1, "executing program\n", 18) = 18 [pid 5537] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5536] <... close resumed>) = 0 [pid 5535] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5536] write(1, "executing program\n", 18executing program [pid 5537] <... bpf resumed>) = 3 [pid 5537] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5536] <... write resumed>) = 18 [pid 5535] <... bpf resumed>) = 3 [pid 5537] <... bpf resumed>) = 4 [pid 5537] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5536] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5535] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5534] +++ exited with 0 +++ [pid 5533] +++ exited with 0 +++ [pid 5536] <... bpf resumed>) = 3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5536] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5535] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5538 attached [pid 5538] set_robust_list(0x555568f86660, 24) = 0 [pid 5538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5536] <... bpf resumed>) = 4 [pid 5538] <... prctl resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5538 [pid 5538] setpgid(0, 0 [pid 5536] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5535] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5538] <... setpgid resumed>) = 0 [pid 5538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5539 attached [pid 5537] <... bpf resumed>) = 5 [pid 5536] <... bpf resumed>) = 5 [pid 5535] <... bpf resumed>) = 5 [pid 5539] set_robust_list(0x555568f86660, 24 [pid 5538] write(3, "1000", 4 [pid 5537] exit_group(0 [pid 5536] exit_group(0 [pid 5539] <... set_robust_list resumed>) = 0 [pid 5538] <... write resumed>) = 4 [pid 5537] <... exit_group resumed>) = ? [pid 5536] <... exit_group resumed>) = ? [pid 5535] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5539 [pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5538] close(3 [pid 5537] +++ exited with 0 +++ [pid 5539] <... prctl resumed>) = 0 [pid 5538] <... close resumed>) = 0 [pid 5535] <... exit_group resumed>) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5539] setpgid(0, 0 [pid 5538] write(1, "executing program\n", 18executing program [pid 5539] <... setpgid resumed>) = 0 [pid 5538] <... write resumed>) = 18 [pid 5538] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5538] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5539] <... openat resumed>) = 3 [pid 5538] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5539] write(3, "1000", 4 [pid 5538] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5536] +++ exited with 0 +++ [pid 5535] +++ exited with 0 +++ [pid 5539] <... write resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5536, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5539] close(3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5535, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5539] <... close resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5540 attached executing program [pid 5539] write(1, "executing program\n", 18 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5540 [pid 5540] set_robust_list(0x555568f86660, 24 [pid 5539] <... write resumed>) = 18 [pid 5540] <... set_robust_list resumed>) = 0 [pid 5539] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5540] setpgid(0, 0) = 0 [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5539] <... bpf resumed>) = 3 [pid 5539] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5540] <... openat resumed>) = 3 [pid 5540] write(3, "1000", 4) = 4 [pid 5540] close(3) = 0 [pid 5540] write(1, "executing program\n", 18) = 18 [pid 5540] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5539] <... bpf resumed>) = 4 [pid 5540] <... bpf resumed>) = 3 [pid 5539] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5538] <... bpf resumed>) = 5 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5540] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5539] <... bpf resumed>) = 5 [pid 5538] exit_group(0 [pid 5540] <... bpf resumed>) = 4 [pid 5538] <... exit_group resumed>) = ? [pid 5539] exit_group(0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5540] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5539] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5541 attached [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5541] set_robust_list(0x555568f86660, 24) = 0 ./strace-static-x86_64: Process 5542 attached [pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5542 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5541 [pid 5542] set_robust_list(0x555568f86660, 24 [pid 5541] <... prctl resumed>) = 0 [pid 5541] setpgid(0, 0) = 0 [pid 5542] <... set_robust_list resumed>) = 0 [pid 5540] <... bpf resumed>) = 5 [pid 5538] +++ exited with 0 +++ [pid 5542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5540] exit_group(0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5542] <... prctl resumed>) = 0 [pid 5542] setpgid(0, 0 [pid 5541] <... openat resumed>) = 3 [pid 5540] <... exit_group resumed>) = ? [pid 5542] <... setpgid resumed>) = 0 [pid 5542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5541] write(3, "1000", 4) = 4 [pid 5542] <... openat resumed>) = 3 [pid 5541] close(3 [pid 5542] write(3, "1000", 4 [pid 5541] <... close resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5542] <... write resumed>) = 4 ./strace-static-x86_64: Process 5543 attached [pid 5542] close(3 [pid 5541] write(1, "executing program\n", 18 [pid 5540] +++ exited with 0 +++ [pid 5539] +++ exited with 0 +++ executing program [pid 5543] set_robust_list(0x555568f86660, 24 [pid 5542] <... close resumed>) = 0 [pid 5541] <... write resumed>) = 18 executing program [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5543 [pid 5543] <... set_robust_list resumed>) = 0 [pid 5542] write(1, "executing program\n", 18 [pid 5541] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5542] <... write resumed>) = 18 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5543] <... prctl resumed>) = 0 [pid 5542] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5541] <... bpf resumed>) = 3 [pid 5543] setpgid(0, 0) = 0 [pid 5541] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5542] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5544 attached [pid 5543] <... openat resumed>) = 3 [pid 5541] <... bpf resumed>) = 4 [pid 5543] write(3, "1000", 4 [pid 5544] set_robust_list(0x555568f86660, 24 [pid 5543] <... write resumed>) = 4 [pid 5542] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5541] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5544 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5544] <... set_robust_list resumed>) = 0 [pid 5543] close(3) = 0 [pid 5542] <... bpf resumed>) = 4 [pid 5541] <... bpf resumed>) = 5 executing program [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5543] write(1, "executing program\n", 18) = 18 [pid 5543] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5541] exit_group(0 [pid 5544] <... prctl resumed>) = 0 [pid 5543] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5542] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5544] setpgid(0, 0 [pid 5541] <... exit_group resumed>) = ? [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5544] <... setpgid resumed>) = 0 [pid 5543] <... bpf resumed>) = 4 [pid 5542] <... bpf resumed>) = 5 [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5542] exit_group(0) = ? ./strace-static-x86_64: Process 5545 attached [pid 5544] <... openat resumed>) = 3 [pid 5543] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5545] set_robust_list(0x555568f86660, 24 [pid 5544] write(3, "1000", 4 [pid 5545] <... set_robust_list resumed>) = 0 [pid 5544] <... write resumed>) = 4 executing program [pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5544] close(3 [pid 5541] +++ exited with 0 +++ [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5545 [pid 5545] <... prctl resumed>) = 0 [pid 5544] <... close resumed>) = 0 [pid 5545] setpgid(0, 0 [pid 5544] write(1, "executing program\n", 18 [pid 5545] <... setpgid resumed>) = 0 [pid 5544] <... write resumed>) = 18 [pid 5543] <... bpf resumed>) = 5 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5541, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5544] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5543] exit_group(0 [pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5543] <... exit_group resumed>) = ? [pid 5545] <... openat resumed>) = 3 [pid 5544] <... bpf resumed>) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5545] write(3, "1000", 4 [pid 5544] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5546 attached [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5546 [pid 5546] set_robust_list(0x555568f86660, 24 [pid 5545] <... write resumed>) = 4 [pid 5544] <... bpf resumed>) = 4 [pid 5543] +++ exited with 0 +++ [pid 5542] +++ exited with 0 +++ [pid 5545] close(3 [pid 5544] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5545] <... close resumed>) = 0 executing program [pid 5545] write(1, "executing program\n", 18) = 18 [pid 5545] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5546] <... set_robust_list resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5547 ./strace-static-x86_64: Process 5547 attached [pid 5546] <... prctl resumed>) = 0 [pid 5545] <... bpf resumed>) = 3 [pid 5547] set_robust_list(0x555568f86660, 24 [pid 5546] setpgid(0, 0 [pid 5545] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5547] <... set_robust_list resumed>) = 0 [pid 5546] <... setpgid resumed>) = 0 [pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5544] <... bpf resumed>) = 5 [pid 5547] <... prctl resumed>) = 0 [pid 5546] <... openat resumed>) = 3 [pid 5545] <... bpf resumed>) = 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5545] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5548 attached [pid 5547] setpgid(0, 0 [pid 5546] write(3, "1000", 4 [pid 5544] exit_group(0 [pid 5548] set_robust_list(0x555568f86660, 24 [pid 5547] <... setpgid resumed>) = 0 [pid 5546] <... write resumed>) = 4 [pid 5544] <... exit_group resumed>) = ? [pid 5545] <... bpf resumed>) = 5 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5548 [pid 5548] <... set_robust_list resumed>) = 0 [pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5546] close(3 [pid 5545] exit_group(0 [pid 5548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5545] <... exit_group resumed>) = ? [pid 5546] <... close resumed>) = 0 [pid 5548] <... prctl resumed>) = 0 [pid 5546] write(1, "executing program\n", 18 [pid 5548] setpgid(0, 0executing program ) = 0 [pid 5547] <... openat resumed>) = 3 [pid 5546] <... write resumed>) = 18 [pid 5547] write(3, "1000", 4 [pid 5546] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5547] <... write resumed>) = 4 [pid 5546] <... bpf resumed>) = 3 [pid 5546] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5548] <... openat resumed>) = 3 [pid 5547] close(3 [pid 5548] write(3, "1000", 4 [pid 5547] <... close resumed>) = 0 [pid 5546] <... bpf resumed>) = 4 [pid 5548] <... write resumed>) = 4 executing program [pid 5547] write(1, "executing program\n", 18 [pid 5548] close(3 [pid 5547] <... write resumed>) = 18 [pid 5548] <... close resumed>) = 0 executing program [pid 5547] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5548] write(1, "executing program\n", 18 [pid 5547] <... bpf resumed>) = 3 [pid 5546] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5548] <... write resumed>) = 18 [pid 5547] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5548] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5547] <... bpf resumed>) = 4 [pid 5548] <... bpf resumed>) = 3 [pid 5547] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5548] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5548] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5545] +++ exited with 0 +++ [pid 5544] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5550 attached ./strace-static-x86_64: Process 5549 attached , child_tidptr=0x555568f86650) = 5550 [pid 5550] set_robust_list(0x555568f86660, 24 [pid 5549] set_robust_list(0x555568f86660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5549 [pid 5550] <... set_robust_list resumed>) = 0 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5549] <... set_robust_list resumed>) = 0 [pid 5550] setpgid(0, 0) = 0 [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5550] <... openat resumed>) = 3 [pid 5549] <... prctl resumed>) = 0 [pid 5546] <... bpf resumed>) = 5 [pid 5550] write(3, "1000", 4) = 4 [pid 5549] setpgid(0, 0 [pid 5548] <... bpf resumed>) = 5 [pid 5547] <... bpf resumed>) = 5 [pid 5546] exit_group(0 [pid 5549] <... setpgid resumed>) = 0 [pid 5550] close(3 [pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5548] exit_group(0 [pid 5547] exit_group(0 [pid 5546] <... exit_group resumed>) = ? [pid 5550] <... close resumed>) = 0 [pid 5549] <... openat resumed>) = 3 [pid 5546] +++ exited with 0 +++ [pid 5548] <... exit_group resumed>) = ? [pid 5547] <... exit_group resumed>) = ? [pid 5550] write(1, "executing program\n", 18 [pid 5549] write(3, "1000", 4executing program ) = 4 [pid 5549] close(3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5550] <... write resumed>) = 18 [pid 5550] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5549] <... close resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5550] <... bpf resumed>) = 3 [pid 5549] write(1, "executing program\n", 18 [pid 5550] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5549] <... write resumed>) = 18 [pid 5550] <... bpf resumed>) = 4 [pid 5549] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5550] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5549] <... bpf resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5548] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5551 attached [pid 5549] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5547] +++ exited with 0 +++ [pid 5551] set_robust_list(0x555568f86660, 24) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5551] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5551] <... prctl resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5551 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5551] setpgid(0, 0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5551] <... setpgid resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5551] <... openat resumed>) = 3 [pid 5551] write(3, "1000", 4./strace-static-x86_64: Process 5552 attached [pid 5550] <... bpf resumed>) = 5 [pid 5549] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5552] set_robust_list(0x555568f86660, 24 [pid 5551] <... write resumed>) = 4 [pid 5550] exit_group(0 [pid 5549] exit_group(0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5552 [pid 5552] <... set_robust_list resumed>) = 0 [pid 5551] close(3 [pid 5552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5551] <... close resumed>) = 0 [pid 5549] <... exit_group resumed>) = ? executing program ./strace-static-x86_64: Process 5553 attached [pid 5552] <... prctl resumed>) = 0 [pid 5551] write(1, "executing program\n", 18 [pid 5550] <... exit_group resumed>) = ? [pid 5551] <... write resumed>) = 18 [pid 5549] +++ exited with 0 +++ [pid 5551] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5550] +++ exited with 0 +++ [pid 5553] set_robust_list(0x555568f86660, 24 [pid 5552] setpgid(0, 0 [pid 5551] <... bpf resumed>) = 3 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5553 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5553] <... set_robust_list resumed>) = 0 [pid 5552] <... setpgid resumed>) = 0 [pid 5552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5551] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5552] <... openat resumed>) = 3 [pid 5553] <... prctl resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5553] setpgid(0, 0 [pid 5552] write(3, "1000", 4 [pid 5553] <... setpgid resumed>) = 0 [pid 5552] <... write resumed>) = 4 [pid 5552] close(3 [pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5552] <... close resumed>) = 0 executing program [pid 5552] write(1, "executing program\n", 18 [pid 5553] <... openat resumed>) = 3 [pid 5552] <... write resumed>) = 18 ./strace-static-x86_64: Process 5554 attached [pid 5553] write(3, "1000", 4 [pid 5552] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5551] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5554 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5554] set_robust_list(0x555568f86660, 24 [pid 5553] <... write resumed>) = 4 [pid 5554] <... set_robust_list resumed>) = 0 [pid 5552] <... bpf resumed>) = 3 [pid 5553] close(3./strace-static-x86_64: Process 5555 attached [pid 5554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5553] <... close resumed>) = 0 [pid 5552] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5551] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5555] set_robust_list(0x555568f86660, 24 [pid 5554] <... prctl resumed>) = 0 [pid 5553] write(1, "executing program\n", 18 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5555 [pid 5555] <... set_robust_list resumed>) = 0 [pid 5553] <... write resumed>) = 18 [pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5554] setpgid(0, 0 [pid 5553] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5551] <... bpf resumed>) = 5 [pid 5555] <... prctl resumed>) = 0 [pid 5554] <... setpgid resumed>) = 0 [pid 5552] <... bpf resumed>) = 4 [pid 5555] setpgid(0, 0 [pid 5554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5553] <... bpf resumed>) = 3 [pid 5555] <... setpgid resumed>) = 0 [pid 5552] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5554] <... openat resumed>) = 3 [pid 5551] exit_group(0 [pid 5555] write(3, "1000", 4 [pid 5554] write(3, "1000", 4 [pid 5552] <... bpf resumed>) = 5 [pid 5551] <... exit_group resumed>) = ? [pid 5555] <... write resumed>) = 4 [pid 5554] <... write resumed>) = 4 [pid 5553] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5552] exit_group(0 [pid 5555] close(3 [pid 5554] close(3) = 0 [pid 5555] <... close resumed>) = 0 [pid 5554] write(1, "executing program\n", 18 [pid 5552] <... exit_group resumed>) = ? executing program executing program [pid 5555] write(1, "executing program\n", 18) = 18 [pid 5554] <... write resumed>) = 18 [pid 5555] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5554] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5553] <... bpf resumed>) = 4 [pid 5555] <... bpf resumed>) = 3 [pid 5554] <... bpf resumed>) = 3 [pid 5553] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5555] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5554] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5555] <... bpf resumed>) = 4 [pid 5554] <... bpf resumed>) = 4 [pid 5554] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5555] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5551] +++ exited with 0 +++ [pid 5552] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... restart_syscall resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5556 attached , child_tidptr=0x555568f86650) = 5556 [pid 5556] set_robust_list(0x555568f86660, 24 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5556] <... set_robust_list resumed>) = 0 [pid 5553] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5557 attached [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5553] exit_group(0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5557 [pid 5556] <... prctl resumed>) = 0 [pid 5557] set_robust_list(0x555568f86660, 24) = 0 [pid 5556] setpgid(0, 0 [pid 5555] <... bpf resumed>) = 5 [pid 5554] <... bpf resumed>) = 5 [pid 5553] <... exit_group resumed>) = ? [pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5556] <... setpgid resumed>) = 0 [pid 5557] <... prctl resumed>) = 0 [pid 5555] exit_group(0 [pid 5554] exit_group(0 [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5557] setpgid(0, 0 [pid 5554] <... exit_group resumed>) = ? [pid 5555] <... exit_group resumed>) = ? [pid 5557] <... setpgid resumed>) = 0 [pid 5556] <... openat resumed>) = 3 [pid 5554] +++ exited with 0 +++ [pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5556] <... write resumed>) = 4 [pid 5556] close(3) = 0 [pid 5557] <... openat resumed>) = 3 [pid 5556] write(1, "executing program\n", 18executing program ) = 18 [pid 5556] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5557] write(3, "1000", 4) = 4 [pid 5557] close(3 [pid 5556] <... bpf resumed>) = 3 [pid 5557] <... close resumed>) = 0 [pid 5556] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5557] write(1, "executing program\n", 18) = 18 [pid 5557] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5556] <... bpf resumed>) = 4 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5557] <... bpf resumed>) = 3 [pid 5556] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5557] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5557] <... bpf resumed>) = 4 [pid 5555] +++ exited with 0 +++ [pid 5553] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5558 attached [pid 5557] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5555, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5558] set_robust_list(0x555568f86660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5558 [pid 5558] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5559 attached [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5557] <... bpf resumed>) = 5 [pid 5556] <... bpf resumed>) = 5 [pid 5558] <... prctl resumed>) = 0 [pid 5558] setpgid(0, 0) = 0 [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5556] exit_group(0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5559] set_robust_list(0x555568f86660, 24 [pid 5558] <... openat resumed>) = 3 [pid 5557] exit_group(0 [pid 5556] <... exit_group resumed>) = ? [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5559 ./strace-static-x86_64: Process 5560 attached [pid 5559] <... set_robust_list resumed>) = 0 [pid 5558] write(3, "1000", 4 [pid 5557] <... exit_group resumed>) = ? [pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5558] <... write resumed>) = 4 [pid 5557] +++ exited with 0 +++ [pid 5559] <... prctl resumed>) = 0 [pid 5558] close(3 [pid 5560] set_robust_list(0x555568f86660, 24 [pid 5559] setpgid(0, 0 [pid 5558] <... close resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5556] +++ exited with 0 +++ [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5560 [pid 5560] <... set_robust_list resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5559] <... setpgid resumed>) = 0 [pid 5558] write(1, "executing program\n", 18 [pid 5560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5558] <... write resumed>) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5560] <... prctl resumed>) = 0 [pid 5558] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5560] setpgid(0, 0 [pid 5559] <... openat resumed>) = 3 [pid 5560] <... setpgid resumed>) = 0 [pid 5558] <... bpf resumed>) = 3 [pid 5560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5559] write(3, "1000", 4 [pid 5558] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5560] <... openat resumed>) = 3 [pid 5559] <... write resumed>) = 4 executing program [pid 5560] write(3, "1000", 4 [pid 5559] close(3) = 0 [pid 5559] write(1, "executing program\n", 18 [pid 5560] <... write resumed>) = 4 [pid 5559] <... write resumed>) = 18 [pid 5560] close(3 [pid 5559] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5558] <... bpf resumed>) = 4 [pid 5560] <... close resumed>) = 0 executing program [pid 5560] write(1, "executing program\n", 18 [pid 5559] <... bpf resumed>) = 3 [pid 5560] <... write resumed>) = 18 [pid 5560] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5558] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5559] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5558] <... bpf resumed>) = 5 [pid 5560] <... bpf resumed>) = 3 [pid 5558] exit_group(0 [pid 5560] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5558] <... exit_group resumed>) = ? [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5560] <... bpf resumed>) = 4 [pid 5559] <... bpf resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5559] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5558] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5561 attached [pid 5561] set_robust_list(0x555568f86660, 24 [pid 5560] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5561 ./strace-static-x86_64: Process 5562 attached [pid 5561] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5562 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5562] set_robust_list(0x555568f86660, 24 [pid 5561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5562] <... set_robust_list resumed>) = 0 [pid 5562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5561] <... prctl resumed>) = 0 [pid 5562] <... prctl resumed>) = 0 [pid 5561] setpgid(0, 0 [pid 5562] setpgid(0, 0 [pid 5561] <... setpgid resumed>) = 0 [pid 5562] <... setpgid resumed>) = 0 [pid 5561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5561] <... openat resumed>) = 3 [pid 5561] write(3, "1000", 4) = 4 [pid 5561] close(3) = 0 [pid 5562] <... openat resumed>) = 3 [pid 5560] <... bpf resumed>) = 5 [pid 5559] <... bpf resumed>) = 5 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5561] write(1, "executing program\n", 18 [pid 5559] exit_group(0 [pid 5561] <... write resumed>) = 18 [pid 5559] <... exit_group resumed>) = ? [pid 5561] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5560] exit_group(0./strace-static-x86_64: Process 5563 attached [pid 5562] write(3, "1000", 4 [pid 5561] <... bpf resumed>) = 3 [pid 5560] <... exit_group resumed>) = ? [pid 5563] set_robust_list(0x555568f86660, 24 [pid 5562] <... write resumed>) = 4 [pid 5563] <... set_robust_list resumed>) = 0 [pid 5562] close(3 [pid 5561] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5563 [pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5562] <... close resumed>) = 0 [pid 5563] <... prctl resumed>) = 0 [pid 5563] setpgid(0, 0 [pid 5562] write(1, "executing program\n", 18 executing program [pid 5561] <... bpf resumed>) = 4 [pid 5563] <... setpgid resumed>) = 0 [pid 5562] <... write resumed>) = 18 [pid 5561] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5560] +++ exited with 0 +++ [pid 5559] +++ exited with 0 +++ [pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5562] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5559, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5563] <... openat resumed>) = 3 [pid 5562] <... bpf resumed>) = 3 [pid 5562] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5563] write(3, "1000", 4 [pid 5562] <... bpf resumed>) = 4 executing program [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5563] <... write resumed>) = 4 [pid 5563] close(3) = 0 [pid 5563] write(1, "executing program\n", 18) = 18 [pid 5563] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5562] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5563] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5563] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5565 attached ./strace-static-x86_64: Process 5564 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5564 [pid 5565] set_robust_list(0x555568f86660, 24 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5565 [pid 5565] <... set_robust_list resumed>) = 0 [pid 5564] set_robust_list(0x555568f86660, 24 [pid 5563] <... bpf resumed>) = 5 [pid 5562] <... bpf resumed>) = 5 [pid 5561] <... bpf resumed>) = 5 [pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5564] <... set_robust_list resumed>) = 0 [pid 5563] exit_group(0 [pid 5562] exit_group(0 [pid 5561] exit_group(0 [pid 5565] <... prctl resumed>) = 0 [pid 5564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5563] <... exit_group resumed>) = ? [pid 5562] <... exit_group resumed>) = ? [pid 5561] <... exit_group resumed>) = ? [pid 5565] setpgid(0, 0 [pid 5564] <... prctl resumed>) = 0 [pid 5563] +++ exited with 0 +++ [pid 5565] <... setpgid resumed>) = 0 [pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5564] setpgid(0, 0 [pid 5565] <... openat resumed>) = 3 [pid 5564] <... setpgid resumed>) = 0 [pid 5564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5563, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5565] write(3, "1000", 4 [pid 5564] <... openat resumed>) = 3 [pid 5565] <... write resumed>) = 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5565] close(3 [pid 5564] write(3, "1000", 4 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5565] <... close resumed>) = 0 [pid 5564] <... write resumed>) = 4 [pid 5565] write(1, "executing program\n", 18 executing program [pid 5564] close(3) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5565] <... write resumed>) = 18 [pid 5564] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5566 attached [pid 5565] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5564] <... write resumed>) = 18 [pid 5566] set_robust_list(0x555568f86660, 24 [pid 5565] <... bpf resumed>) = 3 [pid 5564] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5566 [pid 5566] <... set_robust_list resumed>) = 0 [pid 5566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5565] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5564] <... bpf resumed>) = 3 [pid 5566] <... prctl resumed>) = 0 [pid 5565] <... bpf resumed>) = 4 [pid 5564] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5566] setpgid(0, 0) = 0 [pid 5566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5565] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5561] +++ exited with 0 +++ [pid 5562] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5564] <... bpf resumed>) = 4 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5564] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5566] write(3, "1000", 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... restart_syscall resumed>) = 0 [pid 5566] <... write resumed>) = 4 [pid 5566] close(3 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5566] <... close resumed>) = 0 executing program [pid 5566] write(1, "executing program\n", 18) = 18 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5566] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5567 attached [pid 5567] set_robust_list(0x555568f86660, 24 [pid 5566] <... bpf resumed>) = 3 [pid 5567] <... set_robust_list resumed>) = 0 [pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5566] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5565] <... bpf resumed>) = 5 [pid 5564] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5567 [pid 5567] <... prctl resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5567] setpgid(0, 0 [pid 5566] <... bpf resumed>) = 4 [pid 5565] exit_group(0 [pid 5564] exit_group(0./strace-static-x86_64: Process 5568 attached [pid 5567] <... setpgid resumed>) = 0 [pid 5565] <... exit_group resumed>) = ? [pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5564] <... exit_group resumed>) = ? [pid 5564] +++ exited with 0 +++ [pid 5566] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5568] set_robust_list(0x555568f86660, 24 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5568 [pid 5567] <... openat resumed>) = 3 [pid 5568] <... set_robust_list resumed>) = 0 [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5565] +++ exited with 0 +++ [pid 5568] <... prctl resumed>) = 0 [pid 5567] write(3, "1000", 4 [pid 5568] setpgid(0, 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5567] <... write resumed>) = 4 [pid 5568] <... setpgid resumed>) = 0 [pid 5567] close(3 [pid 5230] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5567] <... close resumed>) = 0 [pid 5567] write(1, "executing program\n", 18) = 18 [pid 5568] <... openat resumed>) = 3 [pid 5567] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5568] write(3, "1000", 4) = 4 [pid 5568] close(3) = 0 executing program [pid 5568] write(1, "executing program\n", 18) = 18 [pid 5568] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5567] <... bpf resumed>) = 3 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5568] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5567] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5568] <... bpf resumed>) = 4 [pid 5567] <... bpf resumed>) = 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5567] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5570 attached ./strace-static-x86_64: Process 5569 attached [pid 5568] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5567] <... bpf resumed>) = 5 [pid 5566] <... bpf resumed>) = 5 [pid 5570] set_robust_list(0x555568f86660, 24 [pid 5569] set_robust_list(0x555568f86660, 24 [pid 5568] <... bpf resumed>) = 5 [pid 5567] exit_group(0 [pid 5566] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5569 [pid 5569] <... set_robust_list resumed>) = 0 [pid 5570] <... set_robust_list resumed>) = 0 [pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5568] exit_group(0 [pid 5567] <... exit_group resumed>) = ? [pid 5566] <... exit_group resumed>) = ? [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5570 [pid 5570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5569] <... prctl resumed>) = 0 [pid 5568] <... exit_group resumed>) = ? [pid 5567] +++ exited with 0 +++ [pid 5570] <... prctl resumed>) = 0 [pid 5570] setpgid(0, 0 [pid 5569] setpgid(0, 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5570] <... setpgid resumed>) = 0 [pid 5570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5569] <... setpgid resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5570] <... openat resumed>) = 3 [pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5570] write(3, "1000", 4) = 4 [pid 5570] close(3executing program ) = 0 [pid 5570] write(1, "executing program\n", 18) = 18 [pid 5570] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5569] <... openat resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5570] <... bpf resumed>) = 3 [pid 5569] write(3, "1000", 4 [pid 5570] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5569] <... write resumed>) = 4 [pid 5570] <... bpf resumed>) = 4 [pid 5569] close(3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5569] <... close resumed>) = 0 ./strace-static-x86_64: Process 5571 attached [pid 5570] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5569] write(1, "executing program\n", 18 [pid 5568] +++ exited with 0 +++ [pid 5566] +++ exited with 0 +++ executing program [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5571] set_robust_list(0x555568f86660, 24 [pid 5569] <... write resumed>) = 18 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5571 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5566, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5571] <... set_robust_list resumed>) = 0 [pid 5569] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5569] <... bpf resumed>) = 3 [pid 5569] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5571] <... prctl resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5572 attached [pid 5571] setpgid(0, 0 [pid 5569] <... bpf resumed>) = 4 [pid 5572] set_robust_list(0x555568f86660, 24 [pid 5571] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5573 attached [pid 5569] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5573] set_robust_list(0x555568f86660, 24 [pid 5572] <... set_robust_list resumed>) = 0 [pid 5570] <... bpf resumed>) = 5 [pid 5569] <... bpf resumed>) = 5 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5572 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5573 [pid 5571] <... openat resumed>) = 3 [pid 5572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5572] setpgid(0, 0 [pid 5570] exit_group(0 [pid 5571] write(3, "1000", 4 [pid 5573] <... set_robust_list resumed>) = 0 [pid 5569] exit_group(0 [pid 5572] <... setpgid resumed>) = 0 [pid 5571] <... write resumed>) = 4 [pid 5570] <... exit_group resumed>) = ? [pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5571] close(3 [pid 5569] <... exit_group resumed>) = ? executing program [pid 5571] <... close resumed>) = 0 [pid 5571] write(1, "executing program\n", 18) = 18 [pid 5571] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5573] <... prctl resumed>) = 0 [pid 5572] <... openat resumed>) = 3 [pid 5571] <... bpf resumed>) = 3 [pid 5571] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5573] setpgid(0, 0 [pid 5572] write(3, "1000", 4 [pid 5571] <... bpf resumed>) = 4 [pid 5573] <... setpgid resumed>) = 0 [pid 5572] <... write resumed>) = 4 [pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5572] close(3 [pid 5571] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5572] <... close resumed>) = 0 [pid 5572] write(1, "executing program\n", 18executing program [pid 5573] <... openat resumed>) = 3 [pid 5572] <... write resumed>) = 18 [pid 5573] write(3, "1000", 4) = 4 [pid 5573] close(3) = 0 [pid 5572] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5570] +++ exited with 0 +++ [pid 5569] +++ exited with 0 +++ executing program [pid 5573] write(1, "executing program\n", 18 [pid 5572] <... bpf resumed>) = 3 [pid 5573] <... write resumed>) = 18 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5569, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5573] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5573] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5572] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5573] <... bpf resumed>) = 4 [pid 5572] <... bpf resumed>) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5572] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5573] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5575 attached ./strace-static-x86_64: Process 5574 attached [pid 5575] set_robust_list(0x555568f86660, 24 [pid 5574] set_robust_list(0x555568f86660, 24) = 0 [pid 5575] <... set_robust_list resumed>) = 0 [pid 5574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5575 [pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5574] <... prctl resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5574 [pid 5574] setpgid(0, 0 [pid 5575] <... prctl resumed>) = 0 [pid 5574] <... setpgid resumed>) = 0 [pid 5575] setpgid(0, 0 [pid 5574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5575] <... setpgid resumed>) = 0 [pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5574] <... openat resumed>) = 3 [pid 5575] <... openat resumed>) = 3 [pid 5573] <... bpf resumed>) = 5 [pid 5572] <... bpf resumed>) = 5 [pid 5571] <... bpf resumed>) = 5 [pid 5575] write(3, "1000", 4 [pid 5574] write(3, "1000", 4 [pid 5573] exit_group(0 [pid 5572] exit_group(0 [pid 5571] exit_group(0 [pid 5575] <... write resumed>) = 4 [pid 5574] <... write resumed>) = 4 [pid 5574] close(3 [pid 5575] close(3 [pid 5574] <... close resumed>) = 0 [pid 5573] <... exit_group resumed>) = ? [pid 5572] <... exit_group resumed>) = ? [pid 5571] <... exit_group resumed>) = ? [pid 5575] <... close resumed>) = 0 [pid 5574] write(1, "executing program\n", 18executing program [pid 5573] +++ exited with 0 +++ [pid 5572] +++ exited with 0 +++ [pid 5571] +++ exited with 0 +++ [pid 5575] write(1, "executing program\n", 18 [pid 5574] <... write resumed>) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5574] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5575] <... write resumed>) = 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5575] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5574] <... bpf resumed>) = 3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5574] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5575] <... bpf resumed>) = 3 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5574] <... bpf resumed>) = 4 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5575] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5574] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5578 attached ./strace-static-x86_64: Process 5577 attached ./strace-static-x86_64: Process 5576 attached [pid 5575] <... bpf resumed>) = 4 [pid 5578] set_robust_list(0x555568f86660, 24 [pid 5577] set_robust_list(0x555568f86660, 24 [pid 5576] set_robust_list(0x555568f86660, 24 [pid 5575] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5576 [pid 5578] <... set_robust_list resumed>) = 0 [pid 5577] <... set_robust_list resumed>) = 0 [pid 5576] <... set_robust_list resumed>) = 0 [pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5577] setpgid(0, 0 [pid 5576] <... prctl resumed>) = 0 [pid 5578] <... prctl resumed>) = 0 [pid 5577] <... setpgid resumed>) = 0 [pid 5576] setpgid(0, 0 [pid 5578] setpgid(0, 0 [pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5576] <... setpgid resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5578 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5577 [pid 5578] <... setpgid resumed>) = 0 [pid 5577] <... openat resumed>) = 3 [pid 5576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5575] <... bpf resumed>) = 5 [pid 5574] <... bpf resumed>) = 5 [pid 5578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5577] write(3, "1000", 4 [pid 5576] <... openat resumed>) = 3 [pid 5574] exit_group(0 [pid 5577] <... write resumed>) = 4 executing program executing program [pid 5575] exit_group(0 [pid 5578] <... openat resumed>) = 3 [pid 5577] close(3 [pid 5576] write(3, "1000", 4 [pid 5575] <... exit_group resumed>) = ? [pid 5574] <... exit_group resumed>) = ? [pid 5576] <... write resumed>) = 4 [pid 5578] write(3, "1000", 4 [pid 5577] <... close resumed>) = 0 [pid 5576] close(3 [pid 5578] <... write resumed>) = 4 [pid 5577] write(1, "executing program\n", 18 [pid 5578] close(3 [pid 5577] <... write resumed>) = 18 [pid 5578] <... close resumed>) = 0 [pid 5577] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5578] write(1, "executing program\n", 18 [pid 5577] <... bpf resumed>) = 3 [pid 5578] <... write resumed>) = 18 [pid 5578] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5577] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5576] <... close resumed>) = 0 [pid 5576] write(1, "executing program\n", 18executing program ) = 18 [pid 5578] <... bpf resumed>) = 3 [pid 5577] <... bpf resumed>) = 4 [pid 5576] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5574] +++ exited with 0 +++ [pid 5578] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5577] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5576] <... bpf resumed>) = 3 [pid 5575] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5578] <... bpf resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5575, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5576] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5578] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5576] <... bpf resumed>) = 4 [pid 5576] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5579 attached , child_tidptr=0x555568f86650) = 5579 [pid 5579] set_robust_list(0x555568f86660, 24) = 0 [pid 5579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5579] <... prctl resumed>) = 0 [pid 5579] setpgid(0, 0) = 0 [pid 5579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5579] write(3, "1000", 4) = 4 [pid 5579] close(3) = 0 ./strace-static-x86_64: Process 5580 attached [pid 5578] <... bpf resumed>) = 5 [pid 5577] <... bpf resumed>) = 5 [pid 5576] <... bpf resumed>) = 5 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5580 [pid 5580] set_robust_list(0x555568f86660, 24executing program [pid 5579] write(1, "executing program\n", 18 [pid 5578] exit_group(0 [pid 5577] exit_group(0 [pid 5576] exit_group(0 [pid 5580] <... set_robust_list resumed>) = 0 [pid 5579] <... write resumed>) = 18 [pid 5578] <... exit_group resumed>) = ? [pid 5580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5579] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5577] <... exit_group resumed>) = ? [pid 5576] <... exit_group resumed>) = ? [pid 5580] <... prctl resumed>) = 0 [pid 5577] +++ exited with 0 +++ [pid 5580] setpgid(0, 0) = 0 [pid 5579] <... bpf resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5579] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5580] <... openat resumed>) = 3 [pid 5580] write(3, "1000", 4 [pid 5579] <... bpf resumed>) = 4 [pid 5580] <... write resumed>) = 4 [pid 5579] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5580] close(3) = 0 [pid 5580] write(1, "executing program\n", 18) = 18 [pid 5580] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5580] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5580] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5581 attached [pid 5581] set_robust_list(0x555568f86660, 24 [pid 5578] +++ exited with 0 +++ [pid 5576] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5581 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5581] <... set_robust_list resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... restart_syscall resumed>) = 0 [pid 5581] <... prctl resumed>) = 0 [pid 5581] setpgid(0, 0) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5582 attached [pid 5581] write(3, "1000", 4 [pid 5582] set_robust_list(0x555568f86660, 24 [pid 5581] <... write resumed>) = 4 ./strace-static-x86_64: Process 5583 attached [pid 5582] <... set_robust_list resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5583 executing program [pid 5582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5581] close(3 [pid 5583] set_robust_list(0x555568f86660, 24 [pid 5582] <... prctl resumed>) = 0 [pid 5583] <... set_robust_list resumed>) = 0 [pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5582] setpgid(0, 0 [pid 5581] <... close resumed>) = 0 [pid 5583] <... prctl resumed>) = 0 [pid 5582] <... setpgid resumed>) = 0 [pid 5581] write(1, "executing program\n", 18 [pid 5583] setpgid(0, 0 [pid 5582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5581] <... write resumed>) = 18 [pid 5583] <... setpgid resumed>) = 0 [pid 5581] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5582 [pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5582] <... openat resumed>) = 3 [pid 5583] <... openat resumed>) = 3 [pid 5582] write(3, "1000", 4 [pid 5581] <... bpf resumed>) = 3 [pid 5583] write(3, "1000", 4 [pid 5582] <... write resumed>) = 4 [pid 5581] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5583] <... write resumed>) = 4 [pid 5582] close(3 [pid 5581] <... bpf resumed>) = 4 [pid 5583] close(3 [pid 5582] <... close resumed>) = 0 [pid 5583] <... close resumed>) = 0 [pid 5582] write(1, "executing program\n", 18 [pid 5583] write(1, "executing program\n", 18 [pid 5582] <... write resumed>) = 18 [pid 5583] <... write resumed>) = 18 [pid 5582] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5581] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5583] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5582] <... bpf resumed>) = 3 [pid 5583] <... bpf resumed>) = 3 [pid 5582] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5583] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5582] <... bpf resumed>) = 4 [pid 5582] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5583] <... bpf resumed>) = 4 [pid 5582] <... bpf resumed>) = 5 [pid 5581] <... bpf resumed>) = 5 [pid 5580] <... bpf resumed>) = 5 [pid 5579] <... bpf resumed>) = 5 [pid 5583] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5582] exit_group(0 [pid 5581] exit_group(0 [pid 5580] exit_group(0 [pid 5579] exit_group(0 [pid 5583] exit_group(0 [pid 5582] <... exit_group resumed>) = ? [pid 5581] <... exit_group resumed>) = ? [pid 5580] <... exit_group resumed>) = ? [pid 5579] <... exit_group resumed>) = ? [pid 5583] <... exit_group resumed>) = ? [pid 5582] +++ exited with 0 +++ [pid 5583] +++ exited with 0 +++ [pid 5581] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5580] +++ exited with 0 +++ [pid 5579] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5236] <... restart_syscall resumed>) = 0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5584 attached [pid 5584] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5584 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5586 attached ./strace-static-x86_64: Process 5585 attached [pid 5584] <... set_robust_list resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5587 attached [pid 5586] set_robust_list(0x555568f86660, 24 [pid 5585] set_robust_list(0x555568f86660, 24 [pid 5584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5585 ./strace-static-x86_64: Process 5588 attached [pid 5587] set_robust_list(0x555568f86660, 24 [pid 5586] <... set_robust_list resumed>) = 0 [pid 5585] <... set_robust_list resumed>) = 0 [pid 5584] <... prctl resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5587 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5586 [pid 5587] <... set_robust_list resumed>) = 0 [pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5584] setpgid(0, 0 [pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5584] <... setpgid resumed>) = 0 [pid 5585] <... prctl resumed>) = 0 [pid 5588] set_robust_list(0x555568f86660, 24 [pid 5586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5585] setpgid(0, 0 [pid 5584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5588] <... set_robust_list resumed>) = 0 [pid 5585] <... setpgid resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5588 [pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5587] <... prctl resumed>) = 0 [pid 5586] <... prctl resumed>) = 0 [pid 5585] <... openat resumed>) = 3 [pid 5584] <... openat resumed>) = 3 [pid 5588] <... prctl resumed>) = 0 [pid 5587] setpgid(0, 0 [pid 5584] write(3, "1000", 4 [pid 5588] setpgid(0, 0 [pid 5586] setpgid(0, 0executing program [pid 5588] <... setpgid resumed>) = 0 [pid 5587] <... setpgid resumed>) = 0 [pid 5584] <... write resumed>) = 4 [pid 5585] write(3, "1000", 4) = 4 [pid 5585] close(3) = 0 [pid 5588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5585] write(1, "executing program\n", 18 [pid 5584] close(3 [pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5585] <... write resumed>) = 18 [pid 5586] <... setpgid resumed>) = 0 [pid 5585] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5584] <... close resumed>) = 0 [pid 5587] <... openat resumed>) = 3 [pid 5586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5585] <... bpf resumed>) = 3 executing program [pid 5584] write(1, "executing program\n", 18 [pid 5585] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5588] <... openat resumed>) = 3 [pid 5587] write(3, "1000", 4 [pid 5586] <... openat resumed>) = 3 [pid 5585] <... bpf resumed>) = 4 [pid 5584] <... write resumed>) = 18 [pid 5588] write(3, "1000", 4 [pid 5587] <... write resumed>) = 4 [pid 5585] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5588] <... write resumed>) = 4 [pid 5587] close(3 [pid 5586] write(3, "1000", 4 [pid 5584] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5588] close(3 [pid 5587] <... close resumed>) = 0 [pid 5586] <... write resumed>) = 4 [pid 5588] <... close resumed>) = 0 executing program executing program [pid 5587] write(1, "executing program\n", 18 [pid 5586] close(3 [pid 5584] <... bpf resumed>) = 3 [pid 5588] write(1, "executing program\n", 18 [pid 5587] <... write resumed>) = 18 [pid 5586] <... close resumed>) = 0 [pid 5585] <... bpf resumed>) = 5 [pid 5588] <... write resumed>) = 18 [pid 5584] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5588] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5587] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5586] write(1, "executing program\n", 18 [pid 5585] exit_group(0 [pid 5584] <... bpf resumed>) = 4 executing program [pid 5585] <... exit_group resumed>) = ? [pid 5588] <... bpf resumed>) = 3 [pid 5587] <... bpf resumed>) = 3 [pid 5586] <... write resumed>) = 18 [pid 5585] +++ exited with 0 +++ [pid 5584] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5588] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5586] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5587] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5586] <... bpf resumed>) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5588] <... bpf resumed>) = 4 [pid 5588] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5587] <... bpf resumed>) = 4 [pid 5586] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5587] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5586] <... bpf resumed>) = 4 [pid 5586] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5588] <... bpf resumed>) = 5 [pid 5587] <... bpf resumed>) = 5 [pid 5586] <... bpf resumed>) = 5 [pid 5584] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5589 attached [pid 5588] exit_group(0 [pid 5587] exit_group(0 [pid 5586] exit_group(0 [pid 5584] exit_group(0 [pid 5588] <... exit_group resumed>) = ? [pid 5586] <... exit_group resumed>) = ? [pid 5589] set_robust_list(0x555568f86660, 24 [pid 5587] <... exit_group resumed>) = ? [pid 5584] <... exit_group resumed>) = ? [pid 5589] <... set_robust_list resumed>) = 0 [pid 5589] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5588] +++ exited with 0 +++ [pid 5587] +++ exited with 0 +++ [pid 5586] +++ exited with 0 +++ [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5589 [pid 5589] <... prctl resumed>) = 0 [pid 5584] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5589] setpgid(0, 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5589] <... setpgid resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5590 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5590 [pid 5590] set_robust_list(0x555568f86660, 24 [pid 5589] <... openat resumed>) = 3 [pid 5590] <... set_robust_list resumed>) = 0 [pid 5589] write(3, "1000", 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5590] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5589] <... write resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5591 attached [pid 5591] set_robust_list(0x555568f86660, 24 [pid 5590] <... prctl resumed>) = 0 [pid 5589] close(3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5591 ./strace-static-x86_64: Process 5592 attached [pid 5591] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5592 ./strace-static-x86_64: Process 5593 attached [pid 5592] set_robust_list(0x555568f86660, 24 [pid 5591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5590] setpgid(0, 0 [pid 5589] <... close resumed>) = 0 [pid 5592] <... set_robust_list resumed>) = 0 [pid 5591] <... prctl resumed>) = 0 [pid 5593] set_robust_list(0x555568f86660, 24 [pid 5591] setpgid(0, 0 [pid 5590] <... setpgid resumed>) = 0 executing program [pid 5589] write(1, "executing program\n", 18 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5593 [pid 5593] <... set_robust_list resumed>) = 0 [pid 5592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] <... setpgid resumed>) = 0 [pid 5590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5589] <... write resumed>) = 18 [pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5589] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5593] <... prctl resumed>) = 0 [pid 5590] <... openat resumed>) = 3 [pid 5593] setpgid(0, 0 [pid 5592] <... prctl resumed>) = 0 [pid 5590] write(3, "1000", 4 [pid 5589] <... bpf resumed>) = 3 [pid 5593] <... setpgid resumed>) = 0 [pid 5592] setpgid(0, 0 [pid 5591] <... openat resumed>) = 3 [pid 5590] <... write resumed>) = 4 [pid 5592] <... setpgid resumed>) = 0 [pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5591] write(3, "1000", 4 [pid 5590] close(3 [pid 5589] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5593] <... openat resumed>) = 3 [pid 5592] <... openat resumed>) = 3 [pid 5591] <... write resumed>) = 4 [pid 5590] <... close resumed>) = 0 executing program [pid 5591] close(3) = 0 [pid 5590] write(1, "executing program\n", 18 [pid 5589] <... bpf resumed>) = 4 [pid 5593] write(3, "1000", 4 [pid 5592] write(3, "1000", 4 [pid 5591] write(1, "executing program\n", 18executing program [pid 5590] <... write resumed>) = 18 [pid 5591] <... write resumed>) = 18 [pid 5593] <... write resumed>) = 4 [pid 5592] <... write resumed>) = 4 [pid 5591] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5590] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5589] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5593] close(3 [pid 5592] close(3 [pid 5591] <... bpf resumed>) = 3 [pid 5592] <... close resumed>) = 0 [pid 5593] <... close resumed>) = 0 [pid 5590] <... bpf resumed>) = 3 [pid 5590] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5589] <... bpf resumed>) = 5 [pid 5593] write(1, "executing program\n", 18 [pid 5592] write(1, "executing program\n", 18 executing program executing program [pid 5591] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5593] <... write resumed>) = 18 [pid 5592] <... write resumed>) = 18 [pid 5593] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5592] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5590] <... bpf resumed>) = 4 [pid 5591] <... bpf resumed>) = 4 [pid 5589] exit_group(0 [pid 5593] <... bpf resumed>) = 3 [pid 5590] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5593] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5592] <... bpf resumed>) = 3 [pid 5590] <... bpf resumed>) = 5 [pid 5589] <... exit_group resumed>) = ? [pid 5591] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5590] exit_group(0 [pid 5593] <... bpf resumed>) = 4 [pid 5592] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5593] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5590] <... exit_group resumed>) = ? [pid 5592] <... bpf resumed>) = 4 [pid 5592] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5589] +++ exited with 0 +++ [pid 5593] <... bpf resumed>) = 5 [pid 5591] <... bpf resumed>) = 5 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5592] <... bpf resumed>) = 5 [pid 5593] exit_group(0 [pid 5592] exit_group(0 [pid 5590] +++ exited with 0 +++ [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5592] <... exit_group resumed>) = ? [pid 5593] <... exit_group resumed>) = ? [pid 5591] exit_group(0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5592] +++ exited with 0 +++ [pid 5591] <... exit_group resumed>) = ? [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5236] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5595 attached ./strace-static-x86_64: Process 5594 attached ./strace-static-x86_64: Process 5596 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5594 [pid 5595] set_robust_list(0x555568f86660, 24 [pid 5594] set_robust_list(0x555568f86660, 24 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5595 [pid 5596] set_robust_list(0x555568f86660, 24 [pid 5595] <... set_robust_list resumed>) = 0 [pid 5594] <... set_robust_list resumed>) = 0 [pid 5596] <... set_robust_list resumed>) = 0 [pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5593] +++ exited with 0 +++ [pid 5591] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5596 [pid 5596] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5593, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5595] <... prctl resumed>) = 0 [pid 5595] setpgid(0, 0 [pid 5594] <... prctl resumed>) = 0 [pid 5594] setpgid(0, 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5596] <... prctl resumed>) = 0 [pid 5595] <... setpgid resumed>) = 0 [pid 5594] <... setpgid resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5596] setpgid(0, 0 [pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5597 ./strace-static-x86_64: Process 5598 attached ./strace-static-x86_64: Process 5597 attached [pid 5596] <... setpgid resumed>) = 0 [pid 5595] <... openat resumed>) = 3 [pid 5594] <... openat resumed>) = 3 [pid 5598] set_robust_list(0x555568f86660, 24 [pid 5597] set_robust_list(0x555568f86660, 24 [pid 5595] write(3, "1000", 4 [pid 5594] write(3, "1000", 4 [pid 5596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5598 [pid 5598] <... set_robust_list resumed>) = 0 [pid 5595] <... write resumed>) = 4 [pid 5594] <... write resumed>) = 4 executing program [pid 5598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5595] close(3 [pid 5594] close(3 [pid 5598] <... prctl resumed>) = 0 [pid 5595] <... close resumed>) = 0 [pid 5594] <... close resumed>) = 0 [pid 5598] setpgid(0, 0 [pid 5595] write(1, "executing program\n", 18 [pid 5594] write(1, "executing program\n", 18executing program [pid 5598] <... setpgid resumed>) = 0 [pid 5595] <... write resumed>) = 18 [pid 5594] <... write resumed>) = 18 [pid 5598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5595] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5594] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5598] <... openat resumed>) = 3 [pid 5597] <... set_robust_list resumed>) = 0 [pid 5596] <... openat resumed>) = 3 [pid 5595] <... bpf resumed>) = 3 [pid 5596] write(3, "1000", 4 [pid 5598] write(3, "1000", 4 [pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5596] <... write resumed>) = 4 [pid 5594] <... bpf resumed>) = 3 [pid 5598] <... write resumed>) = 4 [pid 5595] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5594] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5598] close(3 [pid 5597] <... prctl resumed>) = 0 [pid 5596] close(3 [pid 5598] <... close resumed>) = 0 [pid 5597] setpgid(0, 0 [pid 5596] <... close resumed>) = 0 [pid 5595] <... bpf resumed>) = 4 executing program executing program [pid 5598] write(1, "executing program\n", 18 [pid 5597] <... setpgid resumed>) = 0 [pid 5596] write(1, "executing program\n", 18 [pid 5598] <... write resumed>) = 18 [pid 5596] <... write resumed>) = 18 [pid 5598] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5596] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5598] <... bpf resumed>) = 3 [pid 5596] <... bpf resumed>) = 3 [pid 5595] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5598] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5597] <... openat resumed>) = 3 [pid 5596] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5595] <... bpf resumed>) = 5 [pid 5594] <... bpf resumed>) = 4 [pid 5598] <... bpf resumed>) = 4 [pid 5597] write(3, "1000", 4 [pid 5598] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5595] exit_group(0 [pid 5597] <... write resumed>) = 4 executing program [pid 5596] <... bpf resumed>) = 4 [pid 5594] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5597] close(3 [pid 5595] <... exit_group resumed>) = ? [pid 5597] <... close resumed>) = 0 [pid 5597] write(1, "executing program\n", 18) = 18 [pid 5597] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5596] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5597] <... bpf resumed>) = 3 [pid 5598] <... bpf resumed>) = 5 [pid 5597] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5596] <... bpf resumed>) = 5 [pid 5595] +++ exited with 0 +++ [pid 5594] <... bpf resumed>) = 5 [pid 5598] exit_group(0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5598] <... exit_group resumed>) = ? [pid 5596] exit_group(0 [pid 5594] exit_group(0 [pid 5596] <... exit_group resumed>) = ? [pid 5597] <... bpf resumed>) = 4 [pid 5598] +++ exited with 0 +++ [pid 5597] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5594] <... exit_group resumed>) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5598, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 5599 attached [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5599 [pid 5599] set_robust_list(0x555568f86660, 24 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5599] <... set_robust_list resumed>) = 0 [pid 5599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5600 attached [pid 5599] setpgid(0, 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5600 [pid 5599] <... setpgid resumed>) = 0 [pid 5600] set_robust_list(0x555568f86660, 24) = 0 [pid 5600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5597] <... bpf resumed>) = 5 [pid 5596] +++ exited with 0 +++ [pid 5600] setpgid(0, 0 [pid 5599] <... openat resumed>) = 3 [pid 5600] <... setpgid resumed>) = 0 [pid 5597] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5597] <... exit_group resumed>) = ? [pid 5599] write(3, "1000", 4 [pid 5600] <... openat resumed>) = 3 [pid 5599] <... write resumed>) = 4 [pid 5600] write(3, "1000", 4 [pid 5599] close(3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5599] <... close resumed>) = 0 executing program [pid 5600] <... write resumed>) = 4 [pid 5599] write(1, "executing program\n", 18 [pid 5600] close(3) = 0 [pid 5600] write(1, "executing program\n", 18) = 18 executing program [pid 5600] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5601 attached ) = 3 [pid 5599] <... write resumed>) = 18 [pid 5597] +++ exited with 0 +++ [pid 5594] +++ exited with 0 +++ [pid 5600] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5594, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5601] set_robust_list(0x555568f86660, 24 [pid 5599] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5597, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5601 [pid 5601] <... set_robust_list resumed>) = 0 [pid 5600] <... bpf resumed>) = 4 [pid 5599] <... bpf resumed>) = 3 [pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5600] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5599] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5601] <... prctl resumed>) = 0 [pid 5599] <... bpf resumed>) = 4 [pid 5601] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5602 attached [pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5600] <... bpf resumed>) = 5 [pid 5599] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5602] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5602 [pid 5601] <... openat resumed>) = 3 [pid 5602] <... set_robust_list resumed>) = 0 [pid 5601] write(3, "1000", 4 [pid 5602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5601] <... write resumed>) = 4 [pid 5600] exit_group(0 [pid 5599] <... bpf resumed>) = 5 [pid 5601] close(3 [pid 5600] <... exit_group resumed>) = ? [pid 5601] <... close resumed>) = 0 [pid 5602] <... prctl resumed>) = 0 [pid 5601] write(1, "executing program\n", 18 [pid 5602] setpgid(0, 0executing program ) = 0 [pid 5601] <... write resumed>) = 18 [pid 5599] exit_group(0 [pid 5602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5599] <... exit_group resumed>) = ? [pid 5601] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5602] <... openat resumed>) = 3 [pid 5601] <... bpf resumed>) = 3 [pid 5602] write(3, "1000", 4) = 4 [pid 5602] close(3./strace-static-x86_64: Process 5603 attached ) = 0 executing program [pid 5602] write(1, "executing program\n", 18 [pid 5603] set_robust_list(0x555568f86660, 24 [pid 5602] <... write resumed>) = 18 [pid 5601] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5603 [pid 5603] <... set_robust_list resumed>) = 0 [pid 5602] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5602] <... bpf resumed>) = 3 [pid 5601] <... bpf resumed>) = 4 [pid 5603] <... prctl resumed>) = 0 [pid 5602] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5603] setpgid(0, 0) = 0 [pid 5602] <... bpf resumed>) = 4 [pid 5601] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5602] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5603] <... openat resumed>) = 3 [pid 5603] write(3, "1000", 4) = 4 [pid 5603] close(3) = 0 executing program [pid 5603] write(1, "executing program\n", 18) = 18 [pid 5603] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5603] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5600] +++ exited with 0 +++ [pid 5599] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5600, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5603] <... bpf resumed>) = 4 [pid 5603] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5604 attached [pid 5604] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5605 attached [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5605 [pid 5605] set_robust_list(0x555568f86660, 24) = 0 [pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5604] <... set_robust_list resumed>) = 0 [pid 5605] <... prctl resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5604 [pid 5604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5605] setpgid(0, 0 [pid 5603] <... bpf resumed>) = 5 [pid 5602] <... bpf resumed>) = 5 [pid 5601] <... bpf resumed>) = 5 [pid 5605] <... setpgid resumed>) = 0 [pid 5604] <... prctl resumed>) = 0 [pid 5602] exit_group(0 [pid 5601] exit_group(0 [pid 5604] setpgid(0, 0 [pid 5601] <... exit_group resumed>) = ? [pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5604] <... setpgid resumed>) = 0 [pid 5603] exit_group(0 [pid 5602] <... exit_group resumed>) = ? [pid 5604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5603] <... exit_group resumed>) = ? [pid 5604] <... openat resumed>) = 3 [pid 5603] +++ exited with 0 +++ [pid 5601] +++ exited with 0 +++ [pid 5605] <... openat resumed>) = 3 [pid 5604] write(3, "1000", 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5604] <... write resumed>) = 4 [pid 5605] write(3, "1000", 4 [pid 5604] close(3 [pid 5602] +++ exited with 0 +++ [pid 5605] <... write resumed>) = 4 [pid 5604] <... close resumed>) = 0 executing program [pid 5605] close(3 [pid 5604] write(1, "executing program\n", 18 [pid 5605] <... close resumed>) = 0 [pid 5604] <... write resumed>) = 18 executing program [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5604] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5605] write(1, "executing program\n", 18 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5605] <... write resumed>) = 18 [pid 5605] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5604] <... bpf resumed>) = 3 [pid 5604] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5605] <... bpf resumed>) = 3 [pid 5605] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5604] <... bpf resumed>) = 4 [pid 5604] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5605] <... bpf resumed>) = 4 [pid 5604] <... bpf resumed>) = 5 [pid 5605] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5604] exit_group(0) = ? [pid 5605] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] exit_group(0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5605] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5606 attached [pid 5606] set_robust_list(0x555568f86660, 24 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5606] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5607 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5606 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5607 ./strace-static-x86_64: Process 5608 attached [pid 5607] set_robust_list(0x555568f86660, 24 [pid 5606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] <... set_robust_list resumed>) = 0 [pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5607] setpgid(0, 0) = 0 [pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5606] <... prctl resumed>) = 0 [pid 5607] <... openat resumed>) = 3 [pid 5608] set_robust_list(0x555568f86660, 24 [pid 5606] setpgid(0, 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5608 [pid 5607] write(3, "1000", 4) = 4 [pid 5607] close(3 [pid 5608] <... set_robust_list resumed>) = 0 [pid 5607] <... close resumed>) = 0 [pid 5606] <... setpgid resumed>) = 0 [pid 5608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] write(1, "executing program\n", 18executing program [pid 5606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5605] +++ exited with 0 +++ [pid 5604] +++ exited with 0 +++ [pid 5608] <... prctl resumed>) = 0 [pid 5607] <... write resumed>) = 18 [pid 5606] <... openat resumed>) = 3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5608] setpgid(0, 0) = 0 [pid 5608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5607] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5606] write(3, "1000", 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5608] <... openat resumed>) = 3 [pid 5606] <... write resumed>) = 4 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5606] close(3 [pid 5608] write(3, "1000", 4 [pid 5607] <... bpf resumed>) = 3 [pid 5606] <... close resumed>) = 0 [pid 5606] write(1, "executing program\n", 18 [pid 5608] <... write resumed>) = 4 [pid 5607] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5608] close(3executing program ) = 0 [pid 5606] <... write resumed>) = 18 [pid 5606] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5607] <... bpf resumed>) = 4 [pid 5606] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5608] write(1, "executing program\n", 18 [pid 5607] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5606] <... bpf resumed>) = 4 [pid 5608] <... write resumed>) = 18 [pid 5606] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5608] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5608] <... bpf resumed>) = 3 [pid 5608] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5609 attached [pid 5608] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5609 [pid 5609] set_robust_list(0x555568f86660, 24 [pid 5608] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5607] <... bpf resumed>) = 5 [pid 5606] <... bpf resumed>) = 5 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5609] <... set_robust_list resumed>) = 0 [pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5607] exit_group(0 [pid 5606] exit_group(0) = ? [pid 5609] <... prctl resumed>) = 0 [pid 5608] <... bpf resumed>) = 5 [pid 5607] <... exit_group resumed>) = ? [pid 5609] setpgid(0, 0 [pid 5606] +++ exited with 0 +++ ./strace-static-x86_64: Process 5610 attached [pid 5609] <... setpgid resumed>) = 0 [pid 5608] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5610 [pid 5610] set_robust_list(0x555568f86660, 24 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5610] <... set_robust_list resumed>) = 0 [pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5608] <... exit_group resumed>) = ? [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5610] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5611 attached [pid 5611] set_robust_list(0x555568f86660, 24) = 0 [pid 5610] <... prctl resumed>) = 0 [pid 5609] <... openat resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5611 [pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5609] write(3, "1000", 4 [pid 5611] setpgid(0, 0 [pid 5609] <... write resumed>) = 4 [pid 5611] <... setpgid resumed>) = 0 [pid 5609] close(3 [pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5609] <... close resumed>) = 0 [pid 5609] write(1, "executing program\n", 18executing program [pid 5611] <... openat resumed>) = 3 [pid 5610] setpgid(0, 0 [pid 5609] <... write resumed>) = 18 [pid 5608] +++ exited with 0 +++ [pid 5607] +++ exited with 0 +++ [pid 5611] write(3, "1000", 4 [pid 5610] <... setpgid resumed>) = 0 [pid 5609] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5611] <... write resumed>) = 4 [pid 5610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5607, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5611] close(3 [pid 5610] <... openat resumed>) = 3 [pid 5609] <... bpf resumed>) = 3 [pid 5611] <... close resumed>) = 0 [pid 5611] write(1, "executing program\n", 18executing program [pid 5610] write(3, "1000", 4 [pid 5609] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5611] <... write resumed>) = 18 [pid 5610] <... write resumed>) = 4 [pid 5611] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5613 attached ./strace-static-x86_64: Process 5612 attached [pid 5611] <... bpf resumed>) = 3 [pid 5610] close(3 [pid 5609] <... bpf resumed>) = 4 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5613 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5612 [pid 5613] set_robust_list(0x555568f86660, 24 [pid 5612] set_robust_list(0x555568f86660, 24 [pid 5611] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5610] <... close resumed>) = 0 [pid 5613] <... set_robust_list resumed>) = 0 executing program [pid 5612] <... set_robust_list resumed>) = 0 [pid 5610] write(1, "executing program\n", 18 [pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5611] <... bpf resumed>) = 4 [pid 5609] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5610] <... write resumed>) = 18 [pid 5613] <... prctl resumed>) = 0 [pid 5613] setpgid(0, 0) = 0 [pid 5612] <... prctl resumed>) = 0 [pid 5611] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5610] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5609] <... bpf resumed>) = 5 [pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5612] setpgid(0, 0 [pid 5611] <... bpf resumed>) = 5 [pid 5609] exit_group(0 [pid 5613] <... openat resumed>) = 3 [pid 5612] <... setpgid resumed>) = 0 [pid 5610] <... bpf resumed>) = 3 [pid 5609] <... exit_group resumed>) = ? [pid 5611] exit_group(0 [pid 5610] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5610] <... bpf resumed>) = 4 [pid 5610] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5613] write(3, "1000", 4 [pid 5612] <... openat resumed>) = 3 [pid 5611] <... exit_group resumed>) = ? [pid 5613] <... write resumed>) = 4 [pid 5612] write(3, "1000", 4 [pid 5613] close(3 [pid 5612] <... write resumed>) = 4 [pid 5613] <... close resumed>) = 0 [pid 5612] close(3executing program [pid 5613] write(1, "executing program\n", 18) = 18 [pid 5613] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5612] <... close resumed>) = 0 [pid 5612] write(1, "executing program\n", 18 [pid 5613] <... bpf resumed>) = 3 executing program [pid 5613] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5612] <... write resumed>) = 18 [pid 5613] <... bpf resumed>) = 4 [pid 5612] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5613] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5612] <... bpf resumed>) = 3 [pid 5610] <... bpf resumed>) = 5 [pid 5609] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5612] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5610] exit_group(0) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5612] <... bpf resumed>) = 4 [pid 5612] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5614 attached [pid 5614] set_robust_list(0x555568f86660, 24) = 0 [pid 5614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5614 [pid 5614] <... prctl resumed>) = 0 [pid 5614] setpgid(0, 0) = 0 [pid 5614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5614] write(3, "1000", 4) = 4 [pid 5614] close(3executing program ) = 0 [pid 5614] write(1, "executing program\n", 18) = 18 [pid 5614] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5614] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5614] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5613] <... bpf resumed>) = 5 [pid 5611] +++ exited with 0 +++ [pid 5613] exit_group(0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5613] <... exit_group resumed>) = ? [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5610] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5612] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5614] <... bpf resumed>) = 5 [pid 5613] +++ exited with 0 +++ [pid 5612] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5614] exit_group(0) = ? [pid 5612] <... exit_group resumed>) = ? [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5615 attached ./strace-static-x86_64: Process 5616 attached [pid 5615] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5615 [pid 5615] <... set_robust_list resumed>) = 0 [pid 5616] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5616 [pid 5616] <... set_robust_list resumed>) = 0 [pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5617 attached [pid 5616] setpgid(0, 0 [pid 5615] <... prctl resumed>) = 0 [pid 5614] +++ exited with 0 +++ [pid 5612] +++ exited with 0 +++ [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5617 [pid 5616] <... setpgid resumed>) = 0 [pid 5616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5617] set_robust_list(0x555568f86660, 24 [pid 5615] setpgid(0, 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5615] <... setpgid resumed>) = 0 [pid 5616] <... openat resumed>) = 3 [pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5617] <... set_robust_list resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5616] write(3, "1000", 4) = 4 [pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5616] close(3) = 0 ./strace-static-x86_64: Process 5618 attached [pid 5617] <... prctl resumed>) = 0 [pid 5615] <... openat resumed>) = 3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5618] set_robust_list(0x555568f86660, 24 [pid 5617] setpgid(0, 0 executing program [pid 5616] write(1, "executing program\n", 18 [pid 5615] write(3, "1000", 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5618 ./strace-static-x86_64: Process 5619 attached executing program [pid 5618] <... set_robust_list resumed>) = 0 [pid 5617] <... setpgid resumed>) = 0 [pid 5616] <... write resumed>) = 18 [pid 5615] <... write resumed>) = 4 [pid 5619] set_robust_list(0x555568f86660, 24 [pid 5615] close(3 [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] <... close resumed>) = 0 [pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5615] write(1, "executing program\n", 18 [pid 5616] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5615] <... write resumed>) = 18 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5619 [pid 5615] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5615] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5619] <... set_robust_list resumed>) = 0 [pid 5618] <... prctl resumed>) = 0 [pid 5617] <... openat resumed>) = 3 [pid 5616] <... bpf resumed>) = 3 [pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5615] <... bpf resumed>) = 4 [pid 5618] setpgid(0, 0 [pid 5617] write(3, "1000", 4 [pid 5619] <... prctl resumed>) = 0 [pid 5618] <... setpgid resumed>) = 0 [pid 5617] <... write resumed>) = 4 [pid 5616] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5619] setpgid(0, 0 [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5617] close(3 [pid 5615] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5619] <... setpgid resumed>) = 0 [pid 5618] <... openat resumed>) = 3 [pid 5617] <... close resumed>) = 0 [pid 5616] <... bpf resumed>) = 4 [pid 5615] <... bpf resumed>) = 5 [pid 5616] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5618] write(3, "1000", 4 [pid 5617] write(1, "executing program\n", 18 [pid 5615] exit_group(0executing program [pid 5619] <... openat resumed>) = 3 [pid 5618] <... write resumed>) = 4 [pid 5617] <... write resumed>) = 18 [pid 5616] <... bpf resumed>) = 5 [pid 5615] <... exit_group resumed>) = ? [pid 5619] write(3, "1000", 4) = 4 [pid 5619] close(3) = 0 [pid 5616] exit_group(0 [pid 5619] write(1, "executing program\n", 18executing program ) = 18 [pid 5616] <... exit_group resumed>) = ? [pid 5619] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5618] close(3 [pid 5617] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5619] <... bpf resumed>) = 3 [pid 5618] <... close resumed>) = 0 [pid 5617] <... bpf resumed>) = 3 [pid 5618] write(1, "executing program\n", 18 [pid 5619] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5618] <... write resumed>) = 18 [pid 5617] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5619] <... bpf resumed>) = 4 [pid 5618] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5619] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5617] <... bpf resumed>) = 4 [pid 5618] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5617] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5618] <... bpf resumed>) = 4 [pid 5618] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5615] +++ exited with 0 +++ [pid 5616] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5620 attached , child_tidptr=0x555568f86650) = 5620 [pid 5620] set_robust_list(0x555568f86660, 24 [pid 5619] <... bpf resumed>) = 5 [pid 5618] <... bpf resumed>) = 5 [pid 5617] <... bpf resumed>) = 5 [pid 5620] <... set_robust_list resumed>) = 0 [pid 5619] exit_group(0 [pid 5617] exit_group(0 [pid 5620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5618] exit_group(0) = ? [pid 5620] <... prctl resumed>) = 0 [pid 5617] <... exit_group resumed>) = ? [pid 5620] setpgid(0, 0 [pid 5619] <... exit_group resumed>) = ? [pid 5617] +++ exited with 0 +++ [pid 5620] <... setpgid resumed>) = 0 [pid 5618] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5621 attached [pid 5619] +++ exited with 0 +++ [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5620] write(3, "1000", 4 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5621 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5620] <... write resumed>) = 4 [pid 5621] set_robust_list(0x555568f86660, 24 [pid 5620] close(3 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5621] <... set_robust_list resumed>) = 0 [pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5620] <... close resumed>) = 0 [pid 5621] <... prctl resumed>) = 0 [pid 5620] write(1, "executing program\n", 18executing program [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5621] setpgid(0, 0 [pid 5620] <... write resumed>) = 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5621] <... setpgid resumed>) = 0 [pid 5620] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5624 attached ./strace-static-x86_64: Process 5623 attached ./strace-static-x86_64: Process 5622 attached [pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5622 [pid 5623] set_robust_list(0x555568f86660, 24 [pid 5622] set_robust_list(0x555568f86660, 24) = 0 [pid 5621] <... openat resumed>) = 3 [pid 5620] <... bpf resumed>) = 3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5624 [pid 5620] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5624] set_robust_list(0x555568f86660, 24 [pid 5623] <... set_robust_list resumed>) = 0 [pid 5622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5621] write(3, "1000", 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5623 [pid 5624] <... set_robust_list resumed>) = 0 [pid 5622] <... prctl resumed>) = 0 [pid 5624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] setpgid(0, 0 [pid 5621] <... write resumed>) = 4 [pid 5624] <... prctl resumed>) = 0 [pid 5621] close(3 [pid 5624] setpgid(0, 0 [pid 5623] <... prctl resumed>) = 0 executing program [pid 5622] <... setpgid resumed>) = 0 [pid 5621] <... close resumed>) = 0 [pid 5623] setpgid(0, 0 [pid 5620] <... bpf resumed>) = 4 [pid 5620] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5624] <... setpgid resumed>) = 0 [pid 5623] <... setpgid resumed>) = 0 [pid 5622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5621] write(1, "executing program\n", 18 [pid 5620] <... bpf resumed>) = 5 [pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5620] exit_group(0 [pid 5624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5621] <... write resumed>) = 18 [pid 5620] <... exit_group resumed>) = ? [pid 5624] <... openat resumed>) = 3 [pid 5623] <... openat resumed>) = 3 [pid 5622] <... openat resumed>) = 3 [pid 5621] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5624] write(3, "1000", 4 [pid 5623] write(3, "1000", 4 [pid 5622] write(3, "1000", 4 [pid 5621] <... bpf resumed>) = 3 [pid 5624] <... write resumed>) = 4 [pid 5623] <... write resumed>) = 4 [pid 5622] <... write resumed>) = 4 [pid 5621] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5620] +++ exited with 0 +++ executing program executing program [pid 5624] close(3 [pid 5623] close(3 [pid 5622] close(3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5623] <... close resumed>) = 0 [pid 5622] <... close resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5624] <... close resumed>) = 0 [pid 5623] write(1, "executing program\n", 18 [pid 5622] write(1, "executing program\n", 18 executing program [pid 5624] write(1, "executing program\n", 18 [pid 5623] <... write resumed>) = 18 [pid 5622] <... write resumed>) = 18 [pid 5624] <... write resumed>) = 18 [pid 5623] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5622] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5624] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5621] <... bpf resumed>) = 4 [pid 5623] <... bpf resumed>) = 3 [pid 5621] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5622] <... bpf resumed>) = 3 [pid 5624] <... bpf resumed>) = 3 [pid 5623] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5624] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5622] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5621] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5624] <... bpf resumed>) = 4 [pid 5623] <... bpf resumed>) = 4 [pid 5622] <... bpf resumed>) = 4 [pid 5621] exit_group(0) = ? ./strace-static-x86_64: Process 5625 attached [pid 5624] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5623] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5622] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5621] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5625 [pid 5625] set_robust_list(0x555568f86660, 24) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] <... prctl resumed>) = 0 [pid 5625] setpgid(0, 0) = 0 [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5626 attached [pid 5626] set_robust_list(0x555568f86660, 24 [pid 5625] <... openat resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5626 [pid 5625] write(3, "1000", 4 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5624] <... bpf resumed>) = 5 [pid 5623] <... bpf resumed>) = 5 [pid 5622] <... bpf resumed>) = 5 [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5625] <... write resumed>) = 4 [pid 5624] exit_group(0 [pid 5623] exit_group(0 [pid 5625] close(3 [pid 5622] exit_group(0 [pid 5626] <... prctl resumed>) = 0 [pid 5625] <... close resumed>) = 0 [pid 5624] <... exit_group resumed>) = ? [pid 5623] <... exit_group resumed>) = ? executing program [pid 5622] <... exit_group resumed>) = ? [pid 5626] setpgid(0, 0 [pid 5625] write(1, "executing program\n", 18 [pid 5623] +++ exited with 0 +++ [pid 5625] <... write resumed>) = 18 [pid 5626] <... setpgid resumed>) = 0 [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5625] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5626] <... openat resumed>) = 3 [pid 5625] <... bpf resumed>) = 3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5623, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5626] write(3, "1000", 4 [pid 5625] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5626] <... write resumed>) = 4 [pid 5625] <... bpf resumed>) = 4 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5625] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5626] close(3 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5626] <... close resumed>) = 0 executing program [pid 5626] write(1, "executing program\n", 18) = 18 [pid 5626] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5626] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5627 attached [pid 5624] +++ exited with 0 +++ [pid 5622] +++ exited with 0 +++ [pid 5626] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5627 [pid 5627] set_robust_list(0x555568f86660, 24 [pid 5626] <... bpf resumed>) = 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5627] <... set_robust_list resumed>) = 0 [pid 5626] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5625] <... bpf resumed>) = 5 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5628 attached [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] <... bpf resumed>) = 5 [pid 5625] exit_group(0 [pid 5628] set_robust_list(0x555568f86660, 24 [pid 5625] <... exit_group resumed>) = ? [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5628] <... set_robust_list resumed>) = 0 [pid 5627] <... prctl resumed>) = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5627] setpgid(0, 0 [pid 5626] exit_group(0 [pid 5628] <... prctl resumed>) = 0 [pid 5627] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5629 attached [pid 5626] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5628 [pid 5629] set_robust_list(0x555568f86660, 24 [pid 5628] setpgid(0, 0 [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5629 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] <... setpgid resumed>) = 0 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5629] <... prctl resumed>) = 0 [pid 5627] <... openat resumed>) = 3 [pid 5629] setpgid(0, 0 [pid 5628] <... openat resumed>) = 3 [pid 5629] <... setpgid resumed>) = 0 [pid 5628] write(3, "1000", 4 [pid 5627] write(3, "1000", 4 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5628] <... write resumed>) = 4 [pid 5627] <... write resumed>) = 4 [pid 5629] <... openat resumed>) = 3 [pid 5628] close(3 [pid 5627] close(3 [pid 5629] write(3, "1000", 4 [pid 5628] <... close resumed>) = 0 [pid 5627] <... close resumed>) = 0 [pid 5626] +++ exited with 0 +++ [pid 5625] +++ exited with 0 +++ [pid 5629] <... write resumed>) = 4 executing program [pid 5628] write(1, "executing program\n", 18executing program [pid 5627] write(1, "executing program\n", 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5629] close(3 [pid 5628] <... write resumed>) = 18 [pid 5627] <... write resumed>) = 18 [pid 5629] <... close resumed>) = 0 [pid 5628] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5627] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5629] write(1, "executing program\n", 18) = 18 [pid 5628] <... bpf resumed>) = 3 [pid 5627] <... bpf resumed>) = 3 [pid 5629] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5629] <... bpf resumed>) = 3 [pid 5628] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5627] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5631 attached ./strace-static-x86_64: Process 5630 attached [pid 5629] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5628] <... bpf resumed>) = 4 [pid 5627] <... bpf resumed>) = 4 [pid 5631] set_robust_list(0x555568f86660, 24 [pid 5630] set_robust_list(0x555568f86660, 24 [pid 5627] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5631] <... set_robust_list resumed>) = 0 [pid 5630] <... set_robust_list resumed>) = 0 [pid 5629] <... bpf resumed>) = 4 [pid 5628] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5630 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5631 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5631] <... prctl resumed>) = 0 [pid 5630] <... prctl resumed>) = 0 [pid 5631] setpgid(0, 0 [pid 5630] setpgid(0, 0 [pid 5631] <... setpgid resumed>) = 0 [pid 5630] <... setpgid resumed>) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5631] <... openat resumed>) = 3 [pid 5631] write(3, "1000", 4) = 4 [pid 5631] close(3executing program ) = 0 [pid 5630] <... openat resumed>) = 3 [pid 5631] write(1, "executing program\n", 18) = 18 [pid 5631] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5630] write(3, "1000", 4) = 4 [pid 5631] <... bpf resumed>) = 3 [pid 5631] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5630] close(3 [pid 5631] <... bpf resumed>) = 4 [pid 5630] <... close resumed>) = 0 [pid 5631] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5630] write(1, "executing program\n", 18 [pid 5629] <... bpf resumed>) = 5 [pid 5628] <... bpf resumed>) = 5 [pid 5627] <... bpf resumed>) = 5 executing program [pid 5631] <... bpf resumed>) = 5 [pid 5630] <... write resumed>) = 18 [pid 5631] exit_group(0 [pid 5630] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5629] exit_group(0 [pid 5628] exit_group(0 [pid 5627] exit_group(0 [pid 5631] <... exit_group resumed>) = ? [pid 5630] <... bpf resumed>) = 3 [pid 5629] <... exit_group resumed>) = ? [pid 5628] <... exit_group resumed>) = ? [pid 5627] <... exit_group resumed>) = ? [pid 5631] +++ exited with 0 +++ [pid 5630] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5629] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5630] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5630] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5632 attached [pid 5632] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5633 attached [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5632 [pid 5633] set_robust_list(0x555568f86660, 24 [pid 5632] <... set_robust_list resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5633 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] <... prctl resumed>) = 0 [pid 5633] <... prctl resumed>) = 0 [pid 5632] setpgid(0, 0 [pid 5628] +++ exited with 0 +++ [pid 5627] +++ exited with 0 +++ [pid 5633] setpgid(0, 0 [pid 5632] <... setpgid resumed>) = 0 [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5633] <... setpgid resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5627, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5632] write(3, "1000", 4) = 4 [pid 5632] close(3) = 0 [pid 5632] write(1, "executing program\n", 18) = 18 executing program [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5632] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] <... openat resumed>) = 3 [pid 5632] <... bpf resumed>) = 3 [pid 5632] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5635 attached ./strace-static-x86_64: Process 5634 attached [pid 5633] write(3, "1000", 4 [pid 5630] <... bpf resumed>) = 5 [pid 5633] <... write resumed>) = 4 [pid 5633] close(3 [pid 5632] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5635 [pid 5635] set_robust_list(0x555568f86660, 24 [pid 5634] set_robust_list(0x555568f86660, 24 [pid 5633] <... close resumed>) = 0 [pid 5632] <... bpf resumed>) = 5 [pid 5630] exit_group(0 [pid 5632] exit_group(0 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5633] write(1, "executing program\n", 18 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5630] <... exit_group resumed>) = ? [pid 5632] <... exit_group resumed>) = ? [pid 5632] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5630] +++ exited with 0 +++ executing program [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] <... write resumed>) = 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5634 [pid 5635] <... prctl resumed>) = 0 [pid 5634] <... prctl resumed>) = 0 [pid 5633] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5635] setpgid(0, 0 [pid 5634] setpgid(0, 0 [pid 5633] <... bpf resumed>) = 3 [pid 5633] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5635] <... setpgid resumed>) = 0 [pid 5634] <... setpgid resumed>) = 0 [pid 5633] <... bpf resumed>) = 4 [pid 5633] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... restart_syscall resumed>) = 0 [pid 5635] <... openat resumed>) = 3 [pid 5634] <... openat resumed>) = 3 [pid 5634] write(3, "1000", 4) = 4 [pid 5634] close(3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5635] write(3, "1000", 4 [pid 5634] <... close resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5636 attached [pid 5635] <... write resumed>) = 4 [pid 5634] write(1, "executing program\n", 18executing program executing program ./strace-static-x86_64: Process 5637 attached [pid 5635] close(3 [pid 5637] set_robust_list(0x555568f86660, 24) = 0 [pid 5636] set_robust_list(0x555568f86660, 24 [pid 5635] <... close resumed>) = 0 [pid 5634] <... write resumed>) = 18 [pid 5635] write(1, "executing program\n", 18) = 18 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] <... set_robust_list resumed>) = 0 [pid 5635] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5634] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5637] <... prctl resumed>) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5637] setpgid(0, 0 [pid 5636] <... prctl resumed>) = 0 [pid 5635] <... bpf resumed>) = 3 [pid 5634] <... bpf resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5637 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5636 [pid 5635] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5637] <... setpgid resumed>) = 0 [pid 5636] setpgid(0, 0 [pid 5635] <... bpf resumed>) = 4 [pid 5634] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5636] <... setpgid resumed>) = 0 [pid 5635] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5637] <... openat resumed>) = 3 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5634] <... bpf resumed>) = 4 [pid 5633] <... bpf resumed>) = 5 [pid 5637] write(3, "1000", 4 [pid 5635] <... bpf resumed>) = 5 [pid 5634] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5633] exit_group(0 [pid 5637] <... write resumed>) = 4 [pid 5636] <... openat resumed>) = 3 [pid 5634] <... bpf resumed>) = 5 [pid 5633] <... exit_group resumed>) = ? [pid 5637] close(3 [pid 5636] write(3, "1000", 4 [pid 5635] exit_group(0 [pid 5634] exit_group(0 [pid 5637] <... close resumed>) = 0 [pid 5636] <... write resumed>) = 4 executing program [pid 5637] write(1, "executing program\n", 18 [pid 5636] close(3 [pid 5635] <... exit_group resumed>) = ? [pid 5634] <... exit_group resumed>) = ? [pid 5637] <... write resumed>) = 18 [pid 5636] <... close resumed>) = 0 [pid 5633] +++ exited with 0 +++ [pid 5637] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5636] write(1, "executing program\n", 18executing program [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5636] <... write resumed>) = 18 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5636] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5637] <... bpf resumed>) = 3 [pid 5636] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5637] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5636] <... bpf resumed>) = 4 [pid 5637] <... bpf resumed>) = 4 [pid 5637] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5636] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5638 attached [pid 5638] set_robust_list(0x555568f86660, 24 [pid 5635] +++ exited with 0 +++ [pid 5634] +++ exited with 0 +++ [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5638 [pid 5638] <... set_robust_list resumed>) = 0 [pid 5638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5638] setpgid(0, 0) = 0 [pid 5638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5638] <... openat resumed>) = 3 [pid 5638] write(3, "1000", 4) = 4 [pid 5638] close(3) = 0 [pid 5638] write(1, "executing program\n", 18) = 18 executing program [pid 5638] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5640 attached ./strace-static-x86_64: Process 5639 attached [pid 5637] <... bpf resumed>) = 5 [pid 5636] <... bpf resumed>) = 5 [pid 5640] set_robust_list(0x555568f86660, 24 [pid 5639] set_robust_list(0x555568f86660, 24 [pid 5638] <... bpf resumed>) = 3 [pid 5636] exit_group(0 [pid 5640] <... set_robust_list resumed>) = 0 [pid 5639] <... set_robust_list resumed>) = 0 [pid 5637] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5640 [pid 5637] <... exit_group resumed>) = ? [pid 5640] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5638] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5636] <... exit_group resumed>) = ? [pid 5640] <... prctl resumed>) = 0 [pid 5640] setpgid(0, 0 [pid 5639] <... prctl resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5639 [pid 5640] <... setpgid resumed>) = 0 [pid 5640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5639] setpgid(0, 0 [pid 5638] <... bpf resumed>) = 4 [pid 5639] <... setpgid resumed>) = 0 [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5638] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5640] <... openat resumed>) = 3 [pid 5639] <... openat resumed>) = 3 [pid 5640] write(3, "1000", 4 [pid 5639] write(3, "1000", 4) = 4 [pid 5639] close(3executing program ) = 0 [pid 5639] write(1, "executing program\n", 18) = 18 [pid 5640] <... write resumed>) = 4 executing program [pid 5640] close(3 [pid 5639] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5640] <... close resumed>) = 0 [pid 5640] write(1, "executing program\n", 18) = 18 [pid 5639] <... bpf resumed>) = 3 [pid 5640] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5639] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5637] +++ exited with 0 +++ [pid 5640] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5636] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5639] <... bpf resumed>) = 4 [pid 5639] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5640] <... bpf resumed>) = 4 [pid 5640] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5641 attached ./strace-static-x86_64: Process 5642 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5642 [pid 5642] set_robust_list(0x555568f86660, 24 [pid 5641] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5641 [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] <... set_robust_list resumed>) = 0 [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5642] setpgid(0, 0 [pid 5641] setpgid(0, 0 [pid 5642] <... setpgid resumed>) = 0 [pid 5641] <... setpgid resumed>) = 0 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] <... openat resumed>) = 3 [pid 5641] <... openat resumed>) = 3 [pid 5641] write(3, "1000", 4) = 4 [pid 5641] close(3 [pid 5642] write(3, "1000", 4 [pid 5640] <... bpf resumed>) = 5 [pid 5639] <... bpf resumed>) = 5 [pid 5638] <... bpf resumed>) = 5 [pid 5642] <... write resumed>) = 4 [pid 5641] <... close resumed>) = 0 [pid 5640] exit_group(0 [pid 5639] exit_group(0 [pid 5642] close(3 [pid 5641] write(1, "executing program\n", 18 [pid 5638] exit_group(0executing program ) = ? [pid 5642] <... close resumed>) = 0 [pid 5641] <... write resumed>) = 18 [pid 5640] <... exit_group resumed>) = ? [pid 5639] <... exit_group resumed>) = ? executing program [pid 5642] write(1, "executing program\n", 18 [pid 5641] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5640] +++ exited with 0 +++ [pid 5642] <... write resumed>) = 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5640, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5642] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5641] <... bpf resumed>) = 3 [pid 5642] <... bpf resumed>) = 3 [pid 5641] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5642] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5641] <... bpf resumed>) = 4 [pid 5642] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5641] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5643 attached [pid 5639] +++ exited with 0 +++ [pid 5638] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5643 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5643] set_robust_list(0x555568f86660, 24 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5638, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5643] <... set_robust_list resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5643] setpgid(0, 0) = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5644 attached [pid 5643] <... openat resumed>) = 3 [pid 5642] <... bpf resumed>) = 5 [pid 5641] <... bpf resumed>) = 5 [pid 5644] set_robust_list(0x555568f86660, 24 [pid 5643] write(3, "1000", 4 [pid 5641] exit_group(0 [pid 5642] exit_group(0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5644 ./strace-static-x86_64: Process 5645 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5645 [pid 5645] set_robust_list(0x555568f86660, 24 [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] <... write resumed>) = 4 [pid 5642] <... exit_group resumed>) = ? [pid 5641] <... exit_group resumed>) = ? [pid 5645] <... set_robust_list resumed>) = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5643] close(3executing program [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5643] <... close resumed>) = 0 [pid 5645] <... prctl resumed>) = 0 [pid 5644] <... prctl resumed>) = 0 [pid 5643] write(1, "executing program\n", 18 [pid 5645] setpgid(0, 0 [pid 5644] setpgid(0, 0 [pid 5645] <... setpgid resumed>) = 0 [pid 5644] <... setpgid resumed>) = 0 [pid 5643] <... write resumed>) = 18 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5643] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5645] <... openat resumed>) = 3 [pid 5644] <... openat resumed>) = 3 [pid 5645] write(3, "1000", 4) = 4 [pid 5644] write(3, "1000", 4 [pid 5643] <... bpf resumed>) = 3 [pid 5642] +++ exited with 0 +++ [pid 5641] +++ exited with 0 +++ [pid 5645] close(3 [pid 5644] <... write resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5645] <... close resumed>) = 0 [pid 5644] close(3 [pid 5643] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5645] write(1, "executing program\n", 18 [pid 5644] <... close resumed>) = 0 [pid 5645] <... write resumed>) = 18 [pid 5644] write(1, "executing program\n", 18 [pid 5645] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5644] <... write resumed>) = 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] <... bpf resumed>) = 3 [pid 5644] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5643] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5646 attached [pid 5645] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5646] set_robust_list(0x555568f86660, 24 [pid 5644] <... bpf resumed>) = 3 [pid 5643] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5646 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5645] <... bpf resumed>) = 4 [pid 5644] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5647 attached [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5645] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5644] <... bpf resumed>) = 4 [pid 5647] set_robust_list(0x555568f86660, 24 [pid 5646] <... prctl resumed>) = 0 [pid 5644] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5646] setpgid(0, 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] <... setpgid resumed>) = 0 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5647] <... prctl resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5647 [pid 5647] setpgid(0, 0) = 0 [pid 5646] <... openat resumed>) = 3 [pid 5646] write(3, "1000", 4 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... write resumed>) = 4 [pid 5646] close(3) = 0 [pid 5647] <... openat resumed>) = 3 [pid 5646] write(1, "executing program\n", 18executing program [pid 5647] write(3, "1000", 4 [pid 5646] <... write resumed>) = 18 [pid 5645] <... bpf resumed>) = 5 [pid 5644] <... bpf resumed>) = 5 [pid 5643] <... bpf resumed>) = 5 [pid 5647] <... write resumed>) = 4 [pid 5646] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5645] exit_group(0 [pid 5644] exit_group(0 [pid 5643] exit_group(0 [pid 5647] close(3 [pid 5645] <... exit_group resumed>) = ? [pid 5643] <... exit_group resumed>) = ? [pid 5647] <... close resumed>) = 0 [pid 5646] <... bpf resumed>) = 3 [pid 5644] <... exit_group resumed>) = ? [pid 5647] write(1, "executing program\n", 18 [pid 5643] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5647] <... write resumed>) = 18 [pid 5646] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5647] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5646] <... bpf resumed>) = 4 [pid 5647] <... bpf resumed>) = 3 [pid 5646] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5647] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5647] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5648 attached [pid 5648] set_robust_list(0x555568f86660, 24 [pid 5645] +++ exited with 0 +++ [pid 5644] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5648 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5648] <... prctl resumed>) = 0 [pid 5648] setpgid(0, 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5648] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5649 attached [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] <... bpf resumed>) = 5 [pid 5648] <... openat resumed>) = 3 [pid 5646] exit_group(0 [pid 5648] write(3, "1000", 4 [pid 5646] <... exit_group resumed>) = ? [pid 5649] set_robust_list(0x555568f86660, 24 [pid 5648] <... write resumed>) = 4 [pid 5647] exit_group(0 [pid 5649] <... set_robust_list resumed>) = 0 [pid 5647] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5650 attached [pid 5648] close(3 [pid 5650] set_robust_list(0x555568f86660, 24 [pid 5648] <... close resumed>) = 0 [pid 5650] <... set_robust_list resumed>) = 0 executing program [pid 5648] write(1, "executing program\n", 18 [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] <... write resumed>) = 18 [pid 5650] <... prctl resumed>) = 0 [pid 5648] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5649 [pid 5650] setpgid(0, 0 [pid 5648] <... bpf resumed>) = 3 [pid 5650] <... setpgid resumed>) = 0 [pid 5648] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] <... prctl resumed>) = 0 [pid 5648] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5650 [pid 5650] <... openat resumed>) = 3 [pid 5649] setpgid(0, 0 [pid 5650] write(3, "1000", 4 [pid 5649] <... setpgid resumed>) = 0 [pid 5650] <... write resumed>) = 4 [pid 5648] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5650] close(3) = 0 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5650] write(1, "executing program\n", 18) = 18 [pid 5650] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5649] <... openat resumed>) = 3 [pid 5649] write(3, "1000", 4 [pid 5650] <... bpf resumed>) = 3 [pid 5649] <... write resumed>) = 4 [pid 5650] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5649] close(3 [pid 5650] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5649] <... close resumed>) = 0 [pid 5647] +++ exited with 0 +++ [pid 5646] +++ exited with 0 +++ executing program [pid 5649] write(1, "executing program\n", 18 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5649] <... write resumed>) = 18 [pid 5649] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5649] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5651 attached [pid 5649] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5651] set_robust_list(0x555568f86660, 24) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5651 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5652 attached [pid 5650] <... bpf resumed>) = 5 [pid 5649] <... bpf resumed>) = 5 [pid 5648] <... bpf resumed>) = 5 [pid 5652] set_robust_list(0x555568f86660, 24 [pid 5651] setpgid(0, 0 [pid 5649] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5652 [pid 5650] exit_group(0 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] <... setpgid resumed>) = 0 [pid 5650] <... exit_group resumed>) = ? [pid 5648] exit_group(0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5649] <... exit_group resumed>) = ? [pid 5648] <... exit_group resumed>) = ? [pid 5652] <... prctl resumed>) = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5650] +++ exited with 0 +++ [pid 5649] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5652] setpgid(0, 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5650, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5652] <... setpgid resumed>) = 0 [pid 5651] <... openat resumed>) = 3 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5648] +++ exited with 0 +++ [pid 5651] write(3, "1000", 4 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5652] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5648, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5652] <... write resumed>) = 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5652] close(3 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5652] <... close resumed>) = 0 [pid 5652] write(1, "executing program\n", 18executing program ) = 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5652] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5651] <... write resumed>) = 4 [pid 5651] close(3./strace-static-x86_64: Process 5654 attached ./strace-static-x86_64: Process 5653 attached [pid 5652] <... bpf resumed>) = 3 executing program [pid 5651] <... close resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5654] set_robust_list(0x555568f86660, 24 [pid 5651] write(1, "executing program\n", 18 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5653 [pid 5654] <... set_robust_list resumed>) = 0 [pid 5653] set_robust_list(0x555568f86660, 24 [pid 5651] <... write resumed>) = 18 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5654 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] <... set_robust_list resumed>) = 0 [pid 5652] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5651] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5655 attached [pid 5654] <... prctl resumed>) = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... bpf resumed>) = 3 [pid 5654] setpgid(0, 0 [pid 5651] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5655] set_robust_list(0x555568f86660, 24 [pid 5654] <... setpgid resumed>) = 0 [pid 5653] <... prctl resumed>) = 0 [pid 5652] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5655 [pid 5653] setpgid(0, 0 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] <... setpgid resumed>) = 0 [pid 5655] <... prctl resumed>) = 0 [pid 5654] <... openat resumed>) = 3 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5655] setpgid(0, 0 [pid 5654] write(3, "1000", 4 [pid 5652] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5651] <... bpf resumed>) = 4 [pid 5655] <... setpgid resumed>) = 0 [pid 5653] <... openat resumed>) = 3 [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5654] <... write resumed>) = 4 [pid 5653] write(3, "1000", 4 [pid 5652] <... bpf resumed>) = 5 [pid 5654] close(3 [pid 5651] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5654] <... close resumed>) = 0 executing program [pid 5654] write(1, "executing program\n", 18 [pid 5653] <... write resumed>) = 4 [pid 5655] <... openat resumed>) = 3 [pid 5654] <... write resumed>) = 18 [pid 5652] exit_group(0 [pid 5655] write(3, "1000", 4 [pid 5654] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5653] close(3 [pid 5651] <... bpf resumed>) = 5 [pid 5655] <... write resumed>) = 4 [pid 5654] <... bpf resumed>) = 3 [pid 5653] <... close resumed>) = 0 [pid 5652] <... exit_group resumed>) = ? [pid 5655] close(3executing program [pid 5653] write(1, "executing program\n", 18 [pid 5651] exit_group(0 [pid 5655] <... close resumed>) = 0 [pid 5654] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5653] <... write resumed>) = 18 executing program [pid 5655] write(1, "executing program\n", 18 [pid 5651] <... exit_group resumed>) = ? [pid 5655] <... write resumed>) = 18 [pid 5654] <... bpf resumed>) = 4 [pid 5653] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5654] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5653] <... bpf resumed>) = 3 [pid 5655] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5653] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5655] <... bpf resumed>) = 3 [pid 5655] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5653] <... bpf resumed>) = 4 [pid 5653] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5655] <... bpf resumed>) = 4 [pid 5655] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5652] +++ exited with 0 +++ [pid 5651] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... restart_syscall resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5656 attached [pid 5656] set_robust_list(0x555568f86660, 24) = 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5657 attached [pid 5655] <... bpf resumed>) = 5 [pid 5654] <... bpf resumed>) = 5 [pid 5653] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5656 [pid 5655] exit_group(0 [pid 5654] exit_group(0 [pid 5656] <... prctl resumed>) = 0 [pid 5657] set_robust_list(0x555568f86660, 24 [pid 5655] <... exit_group resumed>) = ? [pid 5654] <... exit_group resumed>) = ? [pid 5653] exit_group(0 [pid 5657] <... set_robust_list resumed>) = 0 [pid 5656] setpgid(0, 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5657 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5656] <... setpgid resumed>) = 0 [pid 5653] <... exit_group resumed>) = ? [pid 5657] <... prctl resumed>) = 0 [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5654] +++ exited with 0 +++ [pid 5657] setpgid(0, 0 [pid 5656] <... openat resumed>) = 3 [pid 5657] <... setpgid resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5656] write(3, "1000", 4 [pid 5657] <... openat resumed>) = 3 [pid 5656] <... write resumed>) = 4 [pid 5656] close(3) = 0 [pid 5657] write(3, "1000", 4 [pid 5656] write(1, "executing program\n", 18 [pid 5655] +++ exited with 0 +++ [pid 5653] +++ exited with 0 +++ executing program [pid 5228] <... restart_syscall resumed>) = 0 [pid 5657] <... write resumed>) = 4 [pid 5656] <... write resumed>) = 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5657] close(3 [pid 5656] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5657] <... close resumed>) = 0 [pid 5656] <... bpf resumed>) = 3 executing program [pid 5657] write(1, "executing program\n", 18 [pid 5656] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] <... write resumed>) = 18 [pid 5656] <... bpf resumed>) = 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5658 attached [pid 5657] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5657] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5656] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5658 [pid 5658] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5659 attached ) = 0 ./strace-static-x86_64: Process 5660 attached [pid 5659] set_robust_list(0x555568f86660, 24 [pid 5660] set_robust_list(0x555568f86660, 24 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5660] <... set_robust_list resumed>) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] <... prctl resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5660 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5659 [pid 5660] <... prctl resumed>) = 0 [pid 5658] setpgid(0, 0 [pid 5657] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5660] setpgid(0, 0 [pid 5659] <... prctl resumed>) = 0 [pid 5658] <... setpgid resumed>) = 0 [pid 5660] <... setpgid resumed>) = 0 [pid 5659] setpgid(0, 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5659] <... setpgid resumed>) = 0 [pid 5658] <... openat resumed>) = 3 [pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5658] write(3, "1000", 4 [pid 5660] <... openat resumed>) = 3 [pid 5658] <... write resumed>) = 4 [pid 5660] write(3, "1000", 4) = 4 [pid 5659] <... openat resumed>) = 3 [pid 5658] close(3 [pid 5659] write(3, "1000", 4 [pid 5660] close(3 [pid 5658] <... close resumed>) = 0 [pid 5657] <... bpf resumed>) = 5 [pid 5656] <... bpf resumed>) = 5 [pid 5660] <... close resumed>) = 0 [pid 5659] <... write resumed>) = 4 executing program [pid 5658] write(1, "executing program\n", 18 [pid 5657] exit_group(0 [pid 5656] exit_group(0executing program [pid 5660] write(1, "executing program\n", 18 [pid 5659] close(3 [pid 5658] <... write resumed>) = 18 [pid 5656] <... exit_group resumed>) = ? [pid 5660] <... write resumed>) = 18 [pid 5659] <... close resumed>) = 0 [pid 5658] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5657] <... exit_group resumed>) = ? executing program [pid 5660] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5659] write(1, "executing program\n", 18 [pid 5658] <... bpf resumed>) = 3 [pid 5660] <... bpf resumed>) = 3 [pid 5659] <... write resumed>) = 18 [pid 5659] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5658] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5660] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5659] <... bpf resumed>) = 3 [pid 5658] <... bpf resumed>) = 4 [pid 5659] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5658] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5660] <... bpf resumed>) = 4 [pid 5659] <... bpf resumed>) = 4 [pid 5659] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5660] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5657] +++ exited with 0 +++ [pid 5656] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5661 attached , child_tidptr=0x555568f86650) = 5661 ./strace-static-x86_64: Process 5662 attached [pid 5661] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5662 [pid 5662] set_robust_list(0x555568f86660, 24 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5661] <... prctl resumed>) = 0 [pid 5662] <... prctl resumed>) = 0 [pid 5661] setpgid(0, 0 [pid 5662] setpgid(0, 0 [pid 5661] <... setpgid resumed>) = 0 [pid 5662] <... setpgid resumed>) = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5660] <... bpf resumed>) = 5 [pid 5659] <... bpf resumed>) = 5 [pid 5658] <... bpf resumed>) = 5 [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5661] <... openat resumed>) = 3 [pid 5659] exit_group(0 [pid 5660] exit_group(0 [pid 5658] exit_group(0 [pid 5662] <... openat resumed>) = 3 [pid 5661] write(3, "1000", 4 [pid 5660] <... exit_group resumed>) = ? [pid 5659] <... exit_group resumed>) = ? [pid 5658] <... exit_group resumed>) = ? [pid 5662] write(3, "1000", 4) = 4 [pid 5662] close(3) = 0 [pid 5662] write(1, "executing program\n", 18executing program [pid 5661] <... write resumed>) = 4 [pid 5658] +++ exited with 0 +++ [pid 5661] close(3 [pid 5662] <... write resumed>) = 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5662] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5661] <... close resumed>) = 0 [pid 5662] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5661] write(1, "executing program\n", 18 [pid 5660] +++ exited with 0 +++ [pid 5661] <... write resumed>) = 18 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5661] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5659] +++ exited with 0 +++ ./strace-static-x86_64: Process 5663 attached [pid 5662] <... bpf resumed>) = 4 [pid 5661] <... bpf resumed>) = 3 [pid 5663] set_robust_list(0x555568f86660, 24 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5663] <... set_robust_list resumed>) = 0 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5661] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5662] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5663 [pid 5663] <... prctl resumed>) = 0 [pid 5663] setpgid(0, 0 [pid 5661] <... bpf resumed>) = 4 [pid 5663] <... setpgid resumed>) = 0 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5661] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5663] <... openat resumed>) = 3 [pid 5663] write(3, "1000", 4) = 4 [pid 5663] close(3) = 0 [pid 5663] write(1, "executing program\n", 18executing program ) = 18 [pid 5663] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5663] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5663] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5664 attached , child_tidptr=0x555568f86650) = 5664 [pid 5664] set_robust_list(0x555568f86660, 24) = 0 [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5664] setpgid(0, 0) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5665 attached [pid 5665] set_robust_list(0x555568f86660, 24 [pid 5664] <... openat resumed>) = 3 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5664] write(3, "1000", 4 [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5664] <... write resumed>) = 4 [pid 5665] <... prctl resumed>) = 0 [pid 5664] close(3 [pid 5665] setpgid(0, 0 [pid 5664] <... close resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5665 [pid 5665] <... setpgid resumed>) = 0 [pid 5664] write(1, "executing program\n", 18executing program [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5664] <... write resumed>) = 18 [pid 5665] <... openat resumed>) = 3 [pid 5665] write(3, "1000", 4 [pid 5664] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5665] <... write resumed>) = 4 [pid 5665] close(3 [pid 5664] <... bpf resumed>) = 3 [pid 5665] <... close resumed>) = 0 [pid 5664] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5665] write(1, "executing program\n", 18executing program ) = 18 [pid 5664] <... bpf resumed>) = 4 [pid 5665] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5664] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5665] <... bpf resumed>) = 3 [pid 5665] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5665] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5664] <... bpf resumed>) = 5 [pid 5663] <... bpf resumed>) = 5 [pid 5662] <... bpf resumed>) = 5 [pid 5661] <... bpf resumed>) = 5 [pid 5665] exit_group(0 [pid 5663] exit_group(0 [pid 5664] exit_group(0 [pid 5665] <... exit_group resumed>) = ? [pid 5664] <... exit_group resumed>) = ? [pid 5663] <... exit_group resumed>) = ? [pid 5662] exit_group(0 [pid 5661] exit_group(0 [pid 5665] +++ exited with 0 +++ [pid 5664] +++ exited with 0 +++ [pid 5663] +++ exited with 0 +++ [pid 5662] <... exit_group resumed>) = ? [pid 5661] <... exit_group resumed>) = ? [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5666 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5666 [pid 5666] set_robust_list(0x555568f86660, 24) = 0 [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5667 attached [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5667 [pid 5667] set_robust_list(0x555568f86660, 24 [pid 5666] <... prctl resumed>) = 0 [pid 5667] <... set_robust_list resumed>) = 0 [pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5666] setpgid(0, 0 [pid 5667] <... prctl resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5666] <... setpgid resumed>) = 0 [pid 5667] setpgid(0, 0) = 0 [pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5667] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5668 attached [pid 5666] write(3, "1000", 4 [pid 5667] write(3, "1000", 4 [pid 5666] <... write resumed>) = 4 [pid 5667] <... write resumed>) = 4 [pid 5666] close(3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5668 [pid 5668] set_robust_list(0x555568f86660, 24 [pid 5667] close(3 [pid 5666] <... close resumed>) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5667] <... close resumed>) = 0 [pid 5666] write(1, "executing program\n", 18 executing program executing program [pid 5667] write(1, "executing program\n", 18) = 18 [pid 5666] <... write resumed>) = 18 [pid 5667] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5666] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5668] <... prctl resumed>) = 0 [pid 5668] setpgid(0, 0 [pid 5667] <... bpf resumed>) = 3 [pid 5666] <... bpf resumed>) = 3 [pid 5668] <... setpgid resumed>) = 0 [pid 5667] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5666] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5667] <... bpf resumed>) = 4 [pid 5666] <... bpf resumed>) = 4 [pid 5667] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5668] <... openat resumed>) = 3 [pid 5666] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5662] +++ exited with 0 +++ [pid 5661] +++ exited with 0 +++ [pid 5668] write(3, "1000", 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5668] <... write resumed>) = 4 [pid 5668] close(3) = 0 executing program [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] write(1, "executing program\n", 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5668] <... write resumed>) = 18 [pid 5668] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5669 attached ./strace-static-x86_64: Process 5670 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5670 [pid 5669] set_robust_list(0x555568f86660, 24 [pid 5670] set_robust_list(0x555568f86660, 24 [pid 5668] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5669 [pid 5669] <... set_robust_list resumed>) = 0 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5668] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5669] <... prctl resumed>) = 0 [pid 5670] <... prctl resumed>) = 0 [pid 5669] setpgid(0, 0 [pid 5670] setpgid(0, 0 [pid 5668] <... bpf resumed>) = 4 [pid 5669] <... setpgid resumed>) = 0 [pid 5670] <... setpgid resumed>) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5668] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5667] <... bpf resumed>) = 5 [pid 5666] <... bpf resumed>) = 5 [pid 5670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5668] <... bpf resumed>) = 5 [pid 5667] exit_group(0 [pid 5666] exit_group(0 [pid 5669] <... openat resumed>) = 3 [pid 5668] exit_group(0 [pid 5667] <... exit_group resumed>) = ? [pid 5666] <... exit_group resumed>) = ? [pid 5669] write(3, "1000", 4 [pid 5670] <... openat resumed>) = 3 [pid 5668] <... exit_group resumed>) = ? [pid 5666] +++ exited with 0 +++ [pid 5669] <... write resumed>) = 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5669] close(3 [pid 5670] write(3, "1000", 4 [pid 5669] <... close resumed>) = 0 [pid 5670] <... write resumed>) = 4 executing program [pid 5669] write(1, "executing program\n", 18) = 18 [pid 5670] close(3 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 5669] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5670] <... close resumed>) = 0 ./strace-static-x86_64: Process 5671 attached [pid 5669] <... bpf resumed>) = 3 [pid 5670] write(1, "executing program\n", 18 [pid 5671] set_robust_list(0x555568f86660, 24 [pid 5669] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5670] <... write resumed>) = 18 [pid 5671] <... set_robust_list resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5671 [pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5669] <... bpf resumed>) = 4 [pid 5670] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5671] <... prctl resumed>) = 0 [pid 5669] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5670] <... bpf resumed>) = 3 [pid 5671] setpgid(0, 0 [pid 5667] +++ exited with 0 +++ [pid 5668] +++ exited with 0 +++ [pid 5671] <... setpgid resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5670] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5671] <... openat resumed>) = 3 [pid 5671] write(3, "1000", 4 [pid 5670] <... bpf resumed>) = 4 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5668, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5671] <... write resumed>) = 4 [pid 5670] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5671] close(3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5671] <... close resumed>) = 0 executing program [pid 5671] write(1, "executing program\n", 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] <... restart_syscall resumed>) = 0 [pid 5671] <... write resumed>) = 18 [pid 5671] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5672 attached [pid 5669] <... bpf resumed>) = 5 [pid 5670] <... bpf resumed>) = 5 [pid 5671] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5670] exit_group(0 [pid 5672] set_robust_list(0x555568f86660, 24 [pid 5671] <... bpf resumed>) = 4 [pid 5669] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5672 [pid 5672] <... set_robust_list resumed>) = 0 [pid 5669] <... exit_group resumed>) = ? [pid 5670] <... exit_group resumed>) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5670] +++ exited with 0 +++ [pid 5671] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5669] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5672] <... prctl resumed>) = 0 [pid 5672] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5673 attached [pid 5672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5673] set_robust_list(0x555568f86660, 24 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5673 [pid 5673] <... set_robust_list resumed>) = 0 [pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5672] <... openat resumed>) = 3 [pid 5673] <... prctl resumed>) = 0 [pid 5672] write(3, "1000", 4executing program [pid 5673] setpgid(0, 0 [pid 5672] <... write resumed>) = 4 [pid 5673] <... setpgid resumed>) = 0 [pid 5672] close(3) = 0 [pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5672] write(1, "executing program\n", 18) = 18 [pid 5672] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5673] <... openat resumed>) = 3 [pid 5673] write(3, "1000", 4 [pid 5672] <... bpf resumed>) = 3 [pid 5673] <... write resumed>) = 4 [pid 5671] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5672] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5673] close(3 [pid 5672] <... bpf resumed>) = 4 [pid 5671] exit_group(0 [pid 5673] <... close resumed>) = 0 [pid 5671] <... exit_group resumed>) = ? [pid 5673] write(1, "executing program\n", 18 [pid 5671] +++ exited with 0 +++ [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 5672] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5673] <... write resumed>) = 18 ./strace-static-x86_64: Process 5674 attached [pid 5674] set_robust_list(0x555568f86660, 24) = 0 ./strace-static-x86_64: Process 5675 attached [pid 5674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5673] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5675] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5675 [pid 5674] <... prctl resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5674 [pid 5674] setpgid(0, 0) = 0 [pid 5675] <... set_robust_list resumed>) = 0 [pid 5674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5673] <... bpf resumed>) = 3 [pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5674] <... openat resumed>) = 3 [pid 5675] <... prctl resumed>) = 0 [pid 5674] write(3, "1000", 4 [pid 5675] setpgid(0, 0 [pid 5673] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5672] <... bpf resumed>) = 5 [pid 5675] <... setpgid resumed>) = 0 [pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5674] <... write resumed>) = 4 [pid 5672] exit_group(0 [pid 5674] close(3 [pid 5672] <... exit_group resumed>) = ? [pid 5675] <... openat resumed>) = 3 [pid 5674] <... close resumed>) = 0 [pid 5673] <... bpf resumed>) = 4 [pid 5672] +++ exited with 0 +++ executing program [pid 5674] write(1, "executing program\n", 18 [pid 5675] write(3, "1000", 4 [pid 5674] <... write resumed>) = 18 [pid 5675] <... write resumed>) = 4 [pid 5674] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5675] close(3 [pid 5674] <... bpf resumed>) = 3 [pid 5673] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5675] <... close resumed>) = 0 executing program [pid 5674] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5675] write(1, "executing program\n", 18 [pid 5674] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5675] <... write resumed>) = 18 ./strace-static-x86_64: Process 5676 attached [pid 5676] set_robust_list(0x555568f86660, 24) = 0 [pid 5676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5676] setpgid(0, 0) = 0 [pid 5676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5674] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5675] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5677 attached [pid 5676] <... openat resumed>) = 3 [pid 5675] <... bpf resumed>) = 3 [pid 5677] set_robust_list(0x555568f86660, 24 executing program [pid 5675] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5677 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5676 [pid 5677] <... set_robust_list resumed>) = 0 [pid 5676] write(3, "1000", 4) = 4 [pid 5676] close(3) = 0 [pid 5676] write(1, "executing program\n", 18) = 18 [pid 5676] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5676] <... bpf resumed>) = 3 [pid 5675] <... bpf resumed>) = 4 [pid 5677] <... prctl resumed>) = 0 [pid 5676] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5677] setpgid(0, 0 [pid 5676] <... bpf resumed>) = 4 [pid 5675] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5677] <... setpgid resumed>) = 0 [pid 5676] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5675] <... bpf resumed>) = 5 [pid 5674] <... bpf resumed>) = 5 [pid 5673] <... bpf resumed>) = 5 [pid 5676] <... bpf resumed>) = 5 [pid 5674] exit_group(0 [pid 5677] <... openat resumed>) = 3 [pid 5676] exit_group(0 [pid 5675] exit_group(0 [pid 5673] exit_group(0 [pid 5677] write(3, "1000", 4 [pid 5676] <... exit_group resumed>) = ? [pid 5675] <... exit_group resumed>) = ? [pid 5674] <... exit_group resumed>) = ? [pid 5673] <... exit_group resumed>) = ? [pid 5677] <... write resumed>) = 4 [pid 5676] +++ exited with 0 +++ [pid 5674] +++ exited with 0 +++ [pid 5677] close(3) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> executing program [pid 5677] write(1, "executing program\n", 18 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5677] <... write resumed>) = 18 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5677] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5677] <... bpf resumed>) = 3 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5677] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5678 attached [pid 5675] +++ exited with 0 +++ [pid 5673] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5673, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5678] set_robust_list(0x555568f86660, 24 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5678] <... set_robust_list resumed>) = 0 [pid 5677] <... bpf resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5679 attached [pid 5678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5678 [pid 5678] <... prctl resumed>) = 0 [pid 5678] setpgid(0, 0) = 0 [pid 5678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5679 [pid 5678] write(3, "1000", 4) = 4 [pid 5678] close(3./strace-static-x86_64: Process 5680 attached [pid 5679] set_robust_list(0x555568f86660, 24 [pid 5677] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5679] <... set_robust_list resumed>) = 0 [pid 5678] <... close resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5680] set_robust_list(0x555568f86660, 24 [pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5678] write(1, "executing program\n", 18 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5680 [pid 5679] <... prctl resumed>) = 0 [pid 5678] <... write resumed>) = 18 [pid 5679] setpgid(0, 0 [pid 5678] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5681 attached [pid 5680] <... set_robust_list resumed>) = 0 [pid 5679] <... setpgid resumed>) = 0 [pid 5678] <... bpf resumed>) = 3 [pid 5680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5681] set_robust_list(0x555568f86660, 24 [pid 5680] <... prctl resumed>) = 0 [pid 5679] <... openat resumed>) = 3 [pid 5678] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5681 [pid 5681] <... set_robust_list resumed>) = 0 [pid 5680] setpgid(0, 0 [pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5680] <... setpgid resumed>) = 0 [pid 5679] write(3, "1000", 4 [pid 5678] <... bpf resumed>) = 4 [pid 5681] <... prctl resumed>) = 0 [pid 5679] <... write resumed>) = 4 [pid 5681] setpgid(0, 0 [pid 5680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5677] <... bpf resumed>) = 5 [pid 5681] <... setpgid resumed>) = 0 [pid 5679] close(3) = 0 [pid 5679] write(1, "executing program\n", 18executing program [pid 5680] <... openat resumed>) = 3 [pid 5679] <... write resumed>) = 18 [pid 5677] exit_group(0 [pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5680] write(3, "1000", 4 [pid 5679] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5678] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5681] <... openat resumed>) = 3 [pid 5680] <... write resumed>) = 4 [pid 5681] write(3, "1000", 4 [pid 5680] close(3 [pid 5679] <... bpf resumed>) = 3 [pid 5678] <... bpf resumed>) = 5 [pid 5677] <... exit_group resumed>) = ? [pid 5681] <... write resumed>) = 4 [pid 5680] <... close resumed>) = 0 [pid 5679] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5678] exit_group(0executing program executing program [pid 5681] close(3 [pid 5680] write(1, "executing program\n", 18 [pid 5681] <... close resumed>) = 0 [pid 5680] <... write resumed>) = 18 [pid 5679] <... bpf resumed>) = 4 [pid 5681] write(1, "executing program\n", 18 [pid 5680] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5678] <... exit_group resumed>) = ? [pid 5681] <... write resumed>) = 18 [pid 5680] <... bpf resumed>) = 3 [pid 5679] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5681] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5680] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5681] <... bpf resumed>) = 3 [pid 5681] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5680] <... bpf resumed>) = 4 [pid 5680] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5681] <... bpf resumed>) = 4 [pid 5681] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5677] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5678] +++ exited with 0 +++ [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5682 attached , child_tidptr=0x555568f86650) = 5683 ./strace-static-x86_64: Process 5683 attached [pid 5682] set_robust_list(0x555568f86660, 24 [pid 5681] <... bpf resumed>) = 5 [pid 5680] <... bpf resumed>) = 5 [pid 5679] <... bpf resumed>) = 5 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5682 [pid 5683] set_robust_list(0x555568f86660, 24 [pid 5682] <... set_robust_list resumed>) = 0 [pid 5681] exit_group(0 [pid 5680] exit_group(0 [pid 5679] exit_group(0 [pid 5683] <... set_robust_list resumed>) = 0 [pid 5682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5681] <... exit_group resumed>) = ? [pid 5680] <... exit_group resumed>) = ? [pid 5679] <... exit_group resumed>) = ? [pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5681] +++ exited with 0 +++ [pid 5680] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5682] <... prctl resumed>) = 0 [pid 5683] <... prctl resumed>) = 0 [pid 5679] +++ exited with 0 +++ [pid 5236] <... restart_syscall resumed>) = 0 [pid 5683] setpgid(0, 0 [pid 5682] setpgid(0, 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5684 attached [pid 5683] <... setpgid resumed>) = 0 [pid 5682] <... setpgid resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5684 [pid 5684] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5685 attached ) = 0 [pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5684] setpgid(0, 0 [pid 5682] <... openat resumed>) = 3 [pid 5685] set_robust_list(0x555568f86660, 24 [pid 5684] <... setpgid resumed>) = 0 [pid 5683] <... openat resumed>) = 3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5685 [pid 5684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5686 attached [pid 5685] <... set_robust_list resumed>) = 0 [pid 5684] <... openat resumed>) = 3 [pid 5683] write(3, "1000", 4 [pid 5682] write(3, "1000", 4 [pid 5686] set_robust_list(0x555568f86660, 24 [pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5684] write(3, "1000", 4 [pid 5683] <... write resumed>) = 4 [pid 5682] <... write resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5686 [pid 5686] <... set_robust_list resumed>) = 0 [pid 5683] close(3 [pid 5685] <... prctl resumed>) = 0 [pid 5683] <... close resumed>) = 0 executing program [pid 5685] setpgid(0, 0 [pid 5683] write(1, "executing program\n", 18) = 18 [pid 5686] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5685] <... setpgid resumed>) = 0 [pid 5684] <... write resumed>) = 4 [pid 5683] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5682] close(3 [pid 5686] <... prctl resumed>) = 0 [pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5684] close(3 [pid 5682] <... close resumed>) = 0 [pid 5686] setpgid(0, 0 [pid 5684] <... close resumed>) = 0 [pid 5682] write(1, "executing program\n", 18 [pid 5686] <... setpgid resumed>) = 0 [pid 5684] write(1, "executing program\n", 18executing program executing program [pid 5686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5685] <... openat resumed>) = 3 [pid 5684] <... write resumed>) = 18 [pid 5683] <... bpf resumed>) = 3 [pid 5682] <... write resumed>) = 18 [pid 5685] write(3, "1000", 4 [pid 5684] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5683] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5686] <... openat resumed>) = 3 [pid 5685] <... write resumed>) = 4 [pid 5684] <... bpf resumed>) = 3 [pid 5682] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5685] close(3 [pid 5683] <... bpf resumed>) = 4 [pid 5685] <... close resumed>) = 0 [pid 5685] write(1, "executing program\n", 18 [pid 5683] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5682] <... bpf resumed>) = 3 [pid 5686] write(3, "1000", 4 [pid 5685] <... write resumed>) = 18 [pid 5684] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5685] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5683] <... bpf resumed>) = 5 [pid 5682] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5686] <... write resumed>) = 4 [pid 5685] <... bpf resumed>) = 3 [pid 5684] <... bpf resumed>) = 4 [pid 5683] exit_group(0 [pid 5686] close(3executing program ) = 0 [pid 5684] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5682] <... bpf resumed>) = 4 [pid 5686] write(1, "executing program\n", 18 [pid 5685] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5684] <... bpf resumed>) = 5 [pid 5683] <... exit_group resumed>) = ? [pid 5686] <... write resumed>) = 18 [pid 5682] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5686] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5684] exit_group(0 [pid 5686] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5684] <... exit_group resumed>) = ? [pid 5686] <... bpf resumed>) = 4 [pid 5685] <... bpf resumed>) = 4 [pid 5685] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5686] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5683] +++ exited with 0 +++ [pid 5682] <... bpf resumed>) = 5 [pid 5686] <... bpf resumed>) = 5 [pid 5685] <... bpf resumed>) = 5 [pid 5684] +++ exited with 0 +++ [pid 5682] exit_group(0 [pid 5685] exit_group(0 [pid 5686] exit_group(0 [pid 5682] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5686] <... exit_group resumed>) = ? [pid 5685] <... exit_group resumed>) = ? [pid 5682] +++ exited with 0 +++ [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5687 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5687 attached [pid 5686] +++ exited with 0 +++ [pid 5685] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5689 attached ./strace-static-x86_64: Process 5688 attached [pid 5687] set_robust_list(0x555568f86660, 24 [pid 5689] set_robust_list(0x555568f86660, 24 [pid 5688] set_robust_list(0x555568f86660, 24 [pid 5687] <... set_robust_list resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5689 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5688 ./strace-static-x86_64: Process 5690 attached [pid 5689] <... set_robust_list resumed>) = 0 [pid 5688] <... set_robust_list resumed>) = 0 [pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5690] set_robust_list(0x555568f86660, 24 [pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5690 [pid 5690] <... set_robust_list resumed>) = 0 [pid 5688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5687] <... prctl resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5689] <... prctl resumed>) = 0 [pid 5688] <... prctl resumed>) = 0 [pid 5687] setpgid(0, 0 [pid 5690] <... prctl resumed>) = 0 [pid 5689] setpgid(0, 0 [pid 5690] setpgid(0, 0 [pid 5687] <... setpgid resumed>) = 0 [pid 5690] <... setpgid resumed>) = 0 [pid 5689] <... setpgid resumed>) = 0 [pid 5688] setpgid(0, 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5688] <... setpgid resumed>) = 0 [pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5691 attached [pid 5690] <... openat resumed>) = 3 [pid 5691] set_robust_list(0x555568f86660, 24 [pid 5687] <... openat resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5691 [pid 5691] <... set_robust_list resumed>) = 0 [pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5687] write(3, "1000", 4 [pid 5691] <... prctl resumed>) = 0 [pid 5690] write(3, "1000", 4 [pid 5689] <... openat resumed>) = 3 [pid 5688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5691] setpgid(0, 0 [pid 5690] <... write resumed>) = 4 [pid 5687] <... write resumed>) = 4 [pid 5691] <... setpgid resumed>) = 0 [pid 5690] close(3 [pid 5689] write(3, "1000", 4 [pid 5687] close(3 [pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5690] <... close resumed>) = 0 [pid 5688] <... openat resumed>) = 3 [pid 5687] <... close resumed>) = 0 executing program [pid 5690] write(1, "executing program\n", 18executing program [pid 5689] <... write resumed>) = 4 [pid 5687] write(1, "executing program\n", 18 [pid 5691] <... openat resumed>) = 3 [pid 5690] <... write resumed>) = 18 [pid 5688] write(3, "1000", 4 [pid 5687] <... write resumed>) = 18 [pid 5690] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5689] close(3 [pid 5688] <... write resumed>) = 4 [pid 5687] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5691] write(3, "1000", 4 executing program executing program [pid 5689] <... close resumed>) = 0 [pid 5688] close(3 [pid 5689] write(1, "executing program\n", 18 [pid 5691] <... write resumed>) = 4 [pid 5688] <... close resumed>) = 0 [pid 5689] <... write resumed>) = 18 [pid 5691] close(3 [pid 5690] <... bpf resumed>) = 3 [pid 5688] write(1, "executing program\n", 18) = 18 [pid 5687] <... bpf resumed>) = 3 [pid 5687] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5691] <... close resumed>) = 0 [pid 5690] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5689] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5688] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5691] write(1, "executing program\n", 18 [pid 5690] <... bpf resumed>) = 4 [pid 5689] <... bpf resumed>) = 3 [pid 5688] <... bpf resumed>) = 3 [pid 5687] <... bpf resumed>) = 4 executing program [pid 5691] <... write resumed>) = 18 [pid 5691] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5690] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5689] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5688] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5687] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5691] <... bpf resumed>) = 3 [pid 5690] <... bpf resumed>) = 5 [pid 5691] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5689] <... bpf resumed>) = 4 [pid 5688] <... bpf resumed>) = 4 [pid 5687] <... bpf resumed>) = 5 [pid 5690] exit_group(0 [pid 5689] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5688] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5687] exit_group(0 [pid 5691] <... bpf resumed>) = 4 [pid 5690] <... exit_group resumed>) = ? [pid 5689] <... bpf resumed>) = 5 [pid 5688] <... bpf resumed>) = 5 [pid 5687] <... exit_group resumed>) = ? [pid 5691] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5691] exit_group(0) = ? [pid 5690] +++ exited with 0 +++ [pid 5689] exit_group(0 [pid 5688] exit_group(0 [pid 5687] +++ exited with 0 +++ [pid 5689] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5691] +++ exited with 0 +++ [pid 5688] <... exit_group resumed>) = ? [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5692 attached , child_tidptr=0x555568f86650) = 5692 [pid 5692] set_robust_list(0x555568f86660, 24) = 0 [pid 5692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5692] setpgid(0, 0) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5692] <... openat resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5693 ./strace-static-x86_64: Process 5694 attached ./strace-static-x86_64: Process 5693 attached [pid 5692] write(3, "1000", 4 [pid 5689] +++ exited with 0 +++ [pid 5688] +++ exited with 0 +++ [pid 5692] <... write resumed>) = 4 [pid 5694] set_robust_list(0x555568f86660, 24 [pid 5693] set_robust_list(0x555568f86660, 24 [pid 5692] close(3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5688, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5693] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5694 [pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5693] setpgid(0, 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5694] <... set_robust_list resumed>) = 0 [pid 5692] <... close resumed>) = 0 [pid 5694] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5696 attached ./strace-static-x86_64: Process 5695 attached executing program ) = 0 [pid 5693] <... setpgid resumed>) = 0 [pid 5692] write(1, "executing program\n", 18 [pid 5696] set_robust_list(0x555568f86660, 24 [pid 5695] set_robust_list(0x555568f86660, 24 [pid 5694] setpgid(0, 0 [pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5692] <... write resumed>) = 18 [pid 5696] <... set_robust_list resumed>) = 0 [pid 5695] <... set_robust_list resumed>) = 0 [pid 5694] <... setpgid resumed>) = 0 [pid 5692] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5696 [pid 5696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5693] <... openat resumed>) = 3 [pid 5692] <... bpf resumed>) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5695 [pid 5696] <... prctl resumed>) = 0 [pid 5695] <... prctl resumed>) = 0 [pid 5696] setpgid(0, 0 [pid 5694] <... openat resumed>) = 3 [pid 5693] write(3, "1000", 4 [pid 5696] <... setpgid resumed>) = 0 [pid 5695] setpgid(0, 0 [pid 5693] <... write resumed>) = 4 [pid 5692] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5695] <... setpgid resumed>) = 0 [pid 5694] write(3, "1000", 4) = 4 [pid 5694] close(3) = 0 executing program [pid 5694] write(1, "executing program\n", 18) = 18 [pid 5694] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5694] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5693] close(3 [pid 5692] <... bpf resumed>) = 4 [pid 5694] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5696] <... openat resumed>) = 3 [pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5693] <... close resumed>) = 0 [pid 5692] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5696] write(3, "1000", 4 [pid 5695] <... openat resumed>) = 3 [pid 5694] <... bpf resumed>) = 5 [pid 5693] write(1, "executing program\n", 18 [pid 5696] <... write resumed>) = 4 [pid 5695] write(3, "1000", 4 [pid 5693] <... write resumed>) = 18 [pid 5692] <... bpf resumed>) = 5 [pid 5696] close(3) = 0 [pid 5696] write(1, "executing program\n", 18executing program [pid 5694] exit_group(0 [pid 5693] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5692] exit_group(0 [pid 5695] <... write resumed>) = 4 [pid 5696] <... write resumed>) = 18 [pid 5696] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5694] <... exit_group resumed>) = ? [pid 5696] <... bpf resumed>) = 3 [pid 5695] close(3 [pid 5693] <... bpf resumed>) = 3 [pid 5692] <... exit_group resumed>) = ? [pid 5696] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5695] <... close resumed>) = 0 [pid 5693] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5696] <... bpf resumed>) = 4 [pid 5695] write(1, "executing program\n", 18 [pid 5696] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5695] <... write resumed>) = 18 [pid 5693] <... bpf resumed>) = 4 [pid 5695] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5693] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5695] <... bpf resumed>) = 3 [pid 5695] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5695] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5694] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5694, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5692] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5697 attached [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5697 [pid 5697] set_robust_list(0x555568f86660, 24 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5697] <... set_robust_list resumed>) = 0 [pid 5696] <... bpf resumed>) = 5 [pid 5693] <... bpf resumed>) = 5 [pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5698 attached [pid 5696] exit_group(0 [pid 5695] <... bpf resumed>) = 5 [pid 5693] exit_group(0 [pid 5697] <... prctl resumed>) = 0 [pid 5696] <... exit_group resumed>) = ? [pid 5695] exit_group(0 [pid 5693] <... exit_group resumed>) = ? [pid 5698] set_robust_list(0x555568f86660, 24 [pid 5697] setpgid(0, 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5698 [pid 5697] <... setpgid resumed>) = 0 [pid 5698] <... set_robust_list resumed>) = 0 [pid 5695] <... exit_group resumed>) = ? [pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5696] +++ exited with 0 +++ [pid 5695] +++ exited with 0 +++ [pid 5693] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5698] <... prctl resumed>) = 0 [pid 5697] <... openat resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5698] setpgid(0, 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5698] <... setpgid resumed>) = 0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5697] write(3, "1000", 4) = 4 [pid 5698] <... openat resumed>) = 3 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5697] close(3) = 0 executing program [pid 5697] write(1, "executing program\n", 18) = 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5697] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5698] write(3, "1000", 4) = 4 [pid 5697] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5699 attached [pid 5698] close(3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5697] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5699] set_robust_list(0x555568f86660, 24 [pid 5698] <... close resumed>) = 0 executing program ./strace-static-x86_64: Process 5700 attached [pid 5699] <... set_robust_list resumed>) = 0 [pid 5698] write(1, "executing program\n", 18 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5699 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5700] set_robust_list(0x555568f86660, 24 [pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5698] <... write resumed>) = 18 [pid 5697] <... bpf resumed>) = 4 [pid 5700] <... set_robust_list resumed>) = 0 [pid 5700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5699] <... prctl resumed>) = 0 [pid 5698] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5697] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5700] <... prctl resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5700 ./strace-static-x86_64: Process 5701 attached [pid 5700] setpgid(0, 0 [pid 5699] setpgid(0, 0 [pid 5698] <... bpf resumed>) = 3 [pid 5701] set_robust_list(0x555568f86660, 24 [pid 5700] <... setpgid resumed>) = 0 [pid 5699] <... setpgid resumed>) = 0 [pid 5698] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5697] <... bpf resumed>) = 5 [pid 5701] <... set_robust_list resumed>) = 0 [pid 5700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5701 [pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5700] <... openat resumed>) = 3 [pid 5699] <... openat resumed>) = 3 [pid 5697] exit_group(0) = ? [pid 5701] <... prctl resumed>) = 0 [pid 5700] write(3, "1000", 4 [pid 5699] write(3, "1000", 4 [pid 5698] <... bpf resumed>) = 4 [pid 5701] setpgid(0, 0) = 0 [pid 5700] <... write resumed>) = 4 [pid 5699] <... write resumed>) = 4 [pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5700] close(3 [pid 5699] close(3 [pid 5700] <... close resumed>) = 0 [pid 5699] <... close resumed>) = 0 [pid 5698] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program executing program [pid 5701] <... openat resumed>) = 3 [pid 5700] write(1, "executing program\n", 18 [pid 5699] write(1, "executing program\n", 18 [pid 5697] +++ exited with 0 +++ [pid 5701] write(3, "1000", 4 [pid 5700] <... write resumed>) = 18 [pid 5699] <... write resumed>) = 18 [pid 5701] <... write resumed>) = 4 [pid 5700] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5699] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5701] close(3 [pid 5698] <... bpf resumed>) = 5 [pid 5701] <... close resumed>) = 0 [pid 5700] <... bpf resumed>) = 3 [pid 5698] exit_group(0executing program [pid 5699] <... bpf resumed>) = 3 [pid 5701] write(1, "executing program\n", 18 [pid 5698] <... exit_group resumed>) = ? [pid 5701] <... write resumed>) = 18 [pid 5700] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5699] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5701] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5700] <... bpf resumed>) = 4 [pid 5699] <... bpf resumed>) = 4 [pid 5698] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5701] <... bpf resumed>) = 3 [pid 5699] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5701] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5700] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5698, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5702 attached [pid 5701] <... bpf resumed>) = 4 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5702] set_robust_list(0x555568f86660, 24 [pid 5701] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5702 [pid 5702] <... set_robust_list resumed>) = 0 [pid 5702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5702] <... prctl resumed>) = 0 [pid 5702] setpgid(0, 0./strace-static-x86_64: Process 5703 attached ) = 0 [pid 5701] <... bpf resumed>) = 5 [pid 5700] <... bpf resumed>) = 5 [pid 5699] <... bpf resumed>) = 5 [pid 5702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5700] exit_group(0 [pid 5703] set_robust_list(0x555568f86660, 24 [pid 5701] exit_group(0 [pid 5699] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5703 [pid 5702] <... openat resumed>) = 3 [pid 5700] <... exit_group resumed>) = ? [pid 5702] write(3, "1000", 4 [pid 5703] <... set_robust_list resumed>) = 0 [pid 5701] <... exit_group resumed>) = ? [pid 5699] <... exit_group resumed>) = ? executing program [pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5702] <... write resumed>) = 4 [pid 5701] +++ exited with 0 +++ [pid 5700] +++ exited with 0 +++ [pid 5703] <... prctl resumed>) = 0 [pid 5703] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5703] <... setpgid resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5702] close(3 [pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5702] <... close resumed>) = 0 [pid 5702] write(1, "executing program\n", 18) = 18 [pid 5702] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5699] +++ exited with 0 +++ [pid 5703] <... openat resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5703] write(3, "1000", 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5703] <... write resumed>) = 4 [pid 5703] close(3) = 0 [pid 5703] write(1, "executing program\n", 18) = 18 [pid 5703] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5702] <... bpf resumed>) = 3 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5703] <... bpf resumed>) = 3 [pid 5702] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5703] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5702] <... bpf resumed>) = 4 [pid 5703] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5702] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5702] <... bpf resumed>) = 5 [pid 5703] <... bpf resumed>) = 5 [pid 5702] exit_group(0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5705 attached ./strace-static-x86_64: Process 5704 attached [pid 5703] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5704 [pid 5704] set_robust_list(0x555568f86660, 24 [pid 5703] <... exit_group resumed>) = ? [pid 5705] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5706 attached [pid 5702] <... exit_group resumed>) = ? [pid 5706] set_robust_list(0x555568f86660, 24 [pid 5705] <... set_robust_list resumed>) = 0 [pid 5704] <... set_robust_list resumed>) = 0 [pid 5703] +++ exited with 0 +++ [pid 5702] +++ exited with 0 +++ [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5706 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5705 [pid 5706] <... set_robust_list resumed>) = 0 [pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5705] <... prctl resumed>) = 0 [pid 5704] <... prctl resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5706] <... prctl resumed>) = 0 [pid 5705] setpgid(0, 0 [pid 5704] setpgid(0, 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5706] setpgid(0, 0 [pid 5704] <... setpgid resumed>) = 0 [pid 5706] <... setpgid resumed>) = 0 [pid 5705] <... setpgid resumed>) = 0 [pid 5706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5706] <... openat resumed>) = 3 [pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5706] write(3, "1000", 4 [pid 5705] <... openat resumed>) = 3 [pid 5704] <... openat resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5706] <... write resumed>) = 4 [pid 5704] write(3, "1000", 4 [pid 5706] close(3 [pid 5705] write(3, "1000", 4 [pid 5704] <... write resumed>) = 4 [pid 5706] <... close resumed>) = 0 [pid 5704] close(3executing program [pid 5706] write(1, "executing program\n", 18 [pid 5704] <... close resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5706] <... write resumed>) = 18 [pid 5705] <... write resumed>) = 4 [pid 5705] close(3 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5707 attached ./strace-static-x86_64: Process 5708 attached [pid 5706] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5705] <... close resumed>) = 0 executing program [pid 5704] write(1, "executing program\n", 18 [pid 5708] set_robust_list(0x555568f86660, 24 [pid 5707] set_robust_list(0x555568f86660, 24 [pid 5706] <... bpf resumed>) = 3 executing program [pid 5705] write(1, "executing program\n", 18 [pid 5704] <... write resumed>) = 18 [pid 5705] <... write resumed>) = 18 [pid 5708] <... set_robust_list resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5708 [pid 5707] <... set_robust_list resumed>) = 0 [pid 5704] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5705] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5708] <... prctl resumed>) = 0 [pid 5707] <... prctl resumed>) = 0 [pid 5706] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5704] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5707 [pid 5708] setpgid(0, 0 [pid 5707] setpgid(0, 0 [pid 5706] <... bpf resumed>) = 4 [pid 5705] <... bpf resumed>) = 3 [pid 5704] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5708] <... setpgid resumed>) = 0 [pid 5707] <... setpgid resumed>) = 0 [pid 5706] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5705] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5704] <... bpf resumed>) = 4 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5706] <... bpf resumed>) = 5 [pid 5704] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5708] <... openat resumed>) = 3 [pid 5707] <... openat resumed>) = 3 [pid 5706] exit_group(0 [pid 5705] <... bpf resumed>) = 4 [pid 5705] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5708] write(3, "1000", 4 [pid 5707] write(3, "1000", 4 [pid 5706] <... exit_group resumed>) = ? [pid 5705] <... bpf resumed>) = 5 [pid 5704] <... bpf resumed>) = 5 [pid 5708] <... write resumed>) = 4 [pid 5707] <... write resumed>) = 4 [pid 5706] +++ exited with 0 +++ [pid 5708] close(3 [pid 5707] close(3 [pid 5705] exit_group(0 [pid 5708] <... close resumed>) = 0 [pid 5707] <... close resumed>) = 0 executing program executing program [pid 5705] <... exit_group resumed>) = ? [pid 5704] exit_group(0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5708] write(1, "executing program\n", 18 [pid 5707] write(1, "executing program\n", 18 [pid 5708] <... write resumed>) = 18 [pid 5707] <... write resumed>) = 18 [pid 5704] <... exit_group resumed>) = ? [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5708] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5707] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5709 attached [pid 5708] <... bpf resumed>) = 3 [pid 5707] <... bpf resumed>) = 3 [pid 5708] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5707] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5709] set_robust_list(0x555568f86660, 24 [pid 5708] <... bpf resumed>) = 4 [pid 5707] <... bpf resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5709 [pid 5709] <... set_robust_list resumed>) = 0 [pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5708] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5707] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5705] +++ exited with 0 +++ [pid 5704] +++ exited with 0 +++ [pid 5709] <... prctl resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5709] setpgid(0, 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5709] <... setpgid resumed>) = 0 [pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5709] <... openat resumed>) = 3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5710 attached [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5710 ./strace-static-x86_64: Process 5711 attached [pid 5710] set_robust_list(0x555568f86660, 24 [pid 5709] write(3, "1000", 4 [pid 5708] <... bpf resumed>) = 5 [pid 5707] <... bpf resumed>) = 5 [pid 5710] <... set_robust_list resumed>) = 0 [pid 5711] set_robust_list(0x555568f86660, 24 [pid 5710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5709] <... write resumed>) = 4 [pid 5708] exit_group(0 [pid 5707] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5711 [pid 5711] <... set_robust_list resumed>) = 0 [pid 5710] <... prctl resumed>) = 0 [pid 5709] close(3 [pid 5708] <... exit_group resumed>) = ? [pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5710] setpgid(0, 0 [pid 5709] <... close resumed>) = 0 [pid 5707] <... exit_group resumed>) = ? [pid 5710] <... setpgid resumed>) = 0 [pid 5709] write(1, "executing program\n", 18 [pid 5711] <... prctl resumed>) = 0 [pid 5711] setpgid(0, 0) = 0 [pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5711] write(3, "1000", 4 [pid 5710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5709] <... write resumed>) = 18 [pid 5711] <... write resumed>) = 4 [pid 5711] close(3) = 0 executing program [pid 5711] write(1, "executing program\n", 18) = 18 [pid 5711] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5710] <... openat resumed>) = 3 [pid 5709] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5710] write(3, "1000", 4 [pid 5711] <... bpf resumed>) = 3 [pid 5711] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5710] <... write resumed>) = 4 [pid 5709] <... bpf resumed>) = 3 [pid 5710] close(3 [pid 5711] <... bpf resumed>) = 4 [pid 5710] <... close resumed>) = 0 [pid 5709] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5710] write(1, "executing program\n", 18 [pid 5711] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5710] <... write resumed>) = 18 [pid 5709] <... bpf resumed>) = 4 [pid 5709] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5710] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5708] +++ exited with 0 +++ [pid 5707] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5710] <... bpf resumed>) = 3 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5710] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5712 attached ) = 4 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5712] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5712 [pid 5712] <... set_robust_list resumed>) = 0 [pid 5712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5713 attached [pid 5710] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5713 [pid 5712] setpgid(0, 0 [pid 5713] set_robust_list(0x555568f86660, 24) = 0 [pid 5712] <... setpgid resumed>) = 0 [pid 5712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5712] <... openat resumed>) = 3 [pid 5713] setpgid(0, 0) = 0 [pid 5712] write(3, "1000", 4 [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5712] <... write resumed>) = 4 executing program [pid 5709] <... bpf resumed>) = 5 [pid 5712] close(3) = 0 [pid 5712] write(1, "executing program\n", 18 [pid 5710] <... bpf resumed>) = 5 [pid 5711] <... bpf resumed>) = 5 [pid 5713] write(3, "1000", 4 [pid 5712] <... write resumed>) = 18 [pid 5709] exit_group(0 [pid 5713] <... write resumed>) = 4 [pid 5712] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5711] exit_group(0 [pid 5710] exit_group(0 [pid 5709] <... exit_group resumed>) = ? [pid 5711] <... exit_group resumed>) = ? [pid 5710] <... exit_group resumed>) = ? [pid 5713] close(3 [pid 5712] <... bpf resumed>) = 3 [pid 5713] <... close resumed>) = 0 [pid 5712] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5713] write(1, "executing program\n", 18) = 18 [pid 5712] <... bpf resumed>) = 4 [pid 5711] +++ exited with 0 +++ [pid 5713] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5713] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5712] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5713] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5714 ./strace-static-x86_64: Process 5714 attached [pid 5714] set_robust_list(0x555568f86660, 24 [pid 5712] <... bpf resumed>) = 5 [pid 5710] +++ exited with 0 +++ [pid 5714] <... set_robust_list resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5714] setpgid(0, 0 [pid 5712] exit_group(0 [pid 5714] <... setpgid resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5712] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5715 attached [pid 5715] set_robust_list(0x555568f86660, 24 [pid 5714] <... openat resumed>) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5715 [pid 5715] <... set_robust_list resumed>) = 0 [pid 5714] write(3, "1000", 4 [pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5713] <... bpf resumed>) = 5 [pid 5709] +++ exited with 0 +++ [pid 5715] <... prctl resumed>) = 0 [pid 5714] <... write resumed>) = 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5715] setpgid(0, 0 [pid 5714] close(3 [pid 5713] exit_group(0 [pid 5715] <... setpgid resumed>) = 0 [pid 5714] <... close resumed>) = 0 [pid 5713] <... exit_group resumed>) = ? [pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC executing program [pid 5714] write(1, "executing program\n", 18 [pid 5715] <... openat resumed>) = 3 [pid 5714] <... write resumed>) = 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5716 attached [pid 5715] write(3, "1000", 4 [pid 5714] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5716] set_robust_list(0x555568f86660, 24 [pid 5715] <... write resumed>) = 4 [pid 5714] <... bpf resumed>) = 3 [pid 5716] <... set_robust_list resumed>) = 0 [pid 5715] close(3) = 0 [pid 5716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5714] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5716] <... prctl resumed>) = 0 executing program [pid 5715] write(1, "executing program\n", 18) = 18 [pid 5716] setpgid(0, 0 [pid 5715] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5714] <... bpf resumed>) = 4 [pid 5716] <... setpgid resumed>) = 0 [pid 5715] <... bpf resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5716 [pid 5716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5715] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5714] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5713] +++ exited with 0 +++ [pid 5712] +++ exited with 0 +++ [pid 5716] write(3, "1000", 4 [pid 5715] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5712, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5716] <... write resumed>) = 4 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5716] close(3 [pid 5715] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5716] <... close resumed>) = 0 ./strace-static-x86_64: Process 5717 attached [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5717 [pid 5717] set_robust_list(0x555568f86660, 24 [pid 5716] write(1, "executing program\n", 18executing program [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5717] <... set_robust_list resumed>) = 0 [pid 5717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5716] <... write resumed>) = 18 [pid 5717] <... prctl resumed>) = 0 [pid 5717] setpgid(0, 0 [pid 5716] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5718 attached [pid 5717] <... setpgid resumed>) = 0 [pid 5718] set_robust_list(0x555568f86660, 24) = 0 [pid 5717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5714] <... bpf resumed>) = 5 [pid 5718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5715] <... bpf resumed>) = 5 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5718 [pid 5718] <... prctl resumed>) = 0 [pid 5717] <... openat resumed>) = 3 [pid 5716] <... bpf resumed>) = 3 [pid 5715] exit_group(0 [pid 5714] exit_group(0 [pid 5718] setpgid(0, 0 [pid 5716] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5715] <... exit_group resumed>) = ? [pid 5714] <... exit_group resumed>) = ? [pid 5718] <... setpgid resumed>) = 0 [pid 5717] write(3, "1000", 4 [pid 5716] <... bpf resumed>) = 4 [pid 5715] +++ exited with 0 +++ [pid 5714] +++ exited with 0 +++ [pid 5718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5717] <... write resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5718] <... openat resumed>) = 3 executing program [pid 5717] close(3 [pid 5716] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5717] <... close resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5714, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5717] write(1, "executing program\n", 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5717] <... write resumed>) = 18 executing program [pid 5718] write(3, "1000", 4) = 4 [pid 5718] close(3) = 0 [pid 5718] write(1, "executing program\n", 18) = 18 [pid 5718] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5717] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5719 attached [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5719 [pid 5718] <... bpf resumed>) = 3 [pid 5717] <... bpf resumed>) = 3 [pid 5716] <... bpf resumed>) = 5 [pid 5719] set_robust_list(0x555568f86660, 24 [pid 5718] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5719] <... set_robust_list resumed>) = 0 [pid 5718] <... bpf resumed>) = 4 [pid 5717] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5716] exit_group(0 [pid 5719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5719] setpgid(0, 0 [pid 5718] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5716] <... exit_group resumed>) = ? [pid 5719] <... setpgid resumed>) = 0 [pid 5718] <... bpf resumed>) = 5 [pid 5717] <... bpf resumed>) = 4 [pid 5718] exit_group(0 [pid 5719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5718] <... exit_group resumed>) = ? [pid 5717] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5719] <... openat resumed>) = 3 [pid 5719] write(3, "1000", 4) = 4 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5719] close(3./strace-static-x86_64: Process 5720 attached ) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5720 [pid 5720] set_robust_list(0x555568f86660, 24executing program [pid 5719] write(1, "executing program\n", 18 [pid 5718] +++ exited with 0 +++ [pid 5720] <... set_robust_list resumed>) = 0 [pid 5716] +++ exited with 0 +++ [pid 5719] <... write resumed>) = 18 [pid 5720] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5719] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5720] <... prctl resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5719] <... bpf resumed>) = 3 [pid 5719] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5720] setpgid(0, 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5721 attached [pid 5720] <... setpgid resumed>) = 0 [pid 5719] <... bpf resumed>) = 4 [pid 5720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5719] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5721] set_robust_list(0x555568f86660, 24) = 0 [pid 5720] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5722 attached [pid 5722] set_robust_list(0x555568f86660, 24) = 0 [pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5720] write(3, "1000", 4 [pid 5719] <... bpf resumed>) = 5 [pid 5717] <... bpf resumed>) = 5 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5721 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5722 [pid 5722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5721] <... prctl resumed>) = 0 [pid 5720] <... write resumed>) = 4 [pid 5719] exit_group(0 [pid 5717] exit_group(0 [pid 5722] setpgid(0, 0 [pid 5721] setpgid(0, 0 [pid 5720] close(3 [pid 5719] <... exit_group resumed>) = ? [pid 5717] <... exit_group resumed>) = ? [pid 5722] <... setpgid resumed>) = 0 [pid 5720] <... close resumed>) = 0 [pid 5721] <... setpgid resumed>) = 0 [pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5720] write(1, "executing program\n", 18 [pid 5721] write(3, "1000", 4) = 4 [pid 5721] close(3 executing program [pid 5722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5720] <... write resumed>) = 18 [pid 5721] <... close resumed>) = 0 [pid 5722] <... openat resumed>) = 3 [pid 5721] write(1, "executing program\n", 18 [pid 5722] write(3, "1000", 4 [pid 5721] <... write resumed>) = 18 [pid 5720] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5722] <... write resumed>) = 4 [pid 5721] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5720] <... bpf resumed>) = 3 [pid 5717] +++ exited with 0 +++ [pid 5721] <... bpf resumed>) = 3 [pid 5721] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5722] close(3 [pid 5721] <... bpf resumed>) = 4 [pid 5720] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5719] +++ exited with 0 +++ [pid 5722] <... close resumed>) = 0 [pid 5721] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5722] write(1, "executing program\n", 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5722] <... write resumed>) = 18 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5722] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5722] <... bpf resumed>) = 3 [pid 5720] <... bpf resumed>) = 4 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5722] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5720] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5722] <... bpf resumed>) = 4 [pid 5722] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5724 attached ./strace-static-x86_64: Process 5723 attached [pid 5722] <... bpf resumed>) = 5 [pid 5721] <... bpf resumed>) = 5 [pid 5720] <... bpf resumed>) = 5 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5723 [pid 5724] set_robust_list(0x555568f86660, 24 [pid 5723] set_robust_list(0x555568f86660, 24 [pid 5722] exit_group(0 [pid 5721] exit_group(0 [pid 5720] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5724 [pid 5724] <... set_robust_list resumed>) = 0 [pid 5723] <... set_robust_list resumed>) = 0 [pid 5722] <... exit_group resumed>) = ? [pid 5721] <... exit_group resumed>) = ? [pid 5720] <... exit_group resumed>) = ? [pid 5724] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5722] +++ exited with 0 +++ [pid 5723] <... prctl resumed>) = 0 [pid 5724] <... prctl resumed>) = 0 [pid 5723] setpgid(0, 0 [pid 5724] setpgid(0, 0 [pid 5723] <... setpgid resumed>) = 0 [pid 5724] <... setpgid resumed>) = 0 [pid 5723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5723] <... openat resumed>) = 3 [pid 5724] <... openat resumed>) = 3 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5724] write(3, "1000", 4 [pid 5723] write(3, "1000", 4 [pid 5724] <... write resumed>) = 4 [pid 5723] <... write resumed>) = 4 [pid 5724] close(3 [pid 5723] close(3 [pid 5724] <... close resumed>) = 0 [pid 5723] <... close resumed>) = 0 [pid 5721] +++ exited with 0 +++ executing program executing program [pid 5724] write(1, "executing program\n", 18 [pid 5723] write(1, "executing program\n", 18 [pid 5724] <... write resumed>) = 18 [pid 5723] <... write resumed>) = 18 [pid 5724] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5723] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5720] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5724] <... bpf resumed>) = 3 [pid 5723] <... bpf resumed>) = 3 [pid 5724] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5723] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5724] <... bpf resumed>) = 4 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5724] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5723] <... bpf resumed>) = 4 [pid 5723] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] <... restart_syscall resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5725 ./strace-static-x86_64: Process 5725 attached [pid 5724] <... bpf resumed>) = 5 [pid 5723] <... bpf resumed>) = 5 [pid 5725] set_robust_list(0x555568f86660, 24 [pid 5724] exit_group(0 [pid 5723] exit_group(0 [pid 5725] <... set_robust_list resumed>) = 0 [pid 5724] <... exit_group resumed>) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5723] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5726 attached [pid 5725] <... prctl resumed>) = 0 [pid 5725] setpgid(0, 0) = 0 [pid 5725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5726 [pid 5725] <... openat resumed>) = 3 [pid 5725] write(3, "1000", 4 [pid 5726] set_robust_list(0x555568f86660, 24 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5726] <... set_robust_list resumed>) = 0 [pid 5725] <... write resumed>) = 4 [pid 5726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5725] close(3) = 0 [pid 5726] <... prctl resumed>) = 0 [pid 5725] write(1, "executing program\n", 18 [pid 5726] setpgid(0, 0 [pid 5725] <... write resumed>) = 18 executing program [pid 5726] <... setpgid resumed>) = 0 [pid 5726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5725] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5727 attached [pid 5726] <... openat resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5727 [pid 5727] set_robust_list(0x555568f86660, 24 [pid 5726] write(3, "1000", 4 [pid 5725] <... bpf resumed>) = 3 [pid 5727] <... set_robust_list resumed>) = 0 [pid 5727] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5726] <... write resumed>) = 4 [pid 5727] <... prctl resumed>) = 0 [pid 5725] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5727] setpgid(0, 0 [pid 5726] close(3 [pid 5724] +++ exited with 0 +++ [pid 5723] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5724, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5727] <... setpgid resumed>) = 0 [pid 5726] <... close resumed>) = 0 [pid 5725] <... bpf resumed>) = 4 executing program [pid 5727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5726] write(1, "executing program\n", 18 [pid 5725] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5726] <... write resumed>) = 18 [pid 5726] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5727] <... openat resumed>) = 3 [pid 5727] write(3, "1000", 4 [pid 5726] <... bpf resumed>) = 3 [pid 5727] <... write resumed>) = 4 [pid 5726] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5727] close(3) = 0 [pid 5726] <... bpf resumed>) = 4 executing program [pid 5727] write(1, "executing program\n", 18) = 18 [pid 5726] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5727] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5727] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5727] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5728 attached [pid 5728] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5729 attached [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5728 [pid 5729] set_robust_list(0x555568f86660, 24 [pid 5728] <... set_robust_list resumed>) = 0 [pid 5729] <... set_robust_list resumed>) = 0 [pid 5728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5729 [pid 5729] <... prctl resumed>) = 0 [pid 5728] <... prctl resumed>) = 0 [pid 5729] setpgid(0, 0 [pid 5728] setpgid(0, 0 [pid 5729] <... setpgid resumed>) = 0 [pid 5728] <... setpgid resumed>) = 0 [pid 5729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5726] <... bpf resumed>) = 5 [pid 5729] write(3, "1000", 4) = 4 [pid 5728] <... openat resumed>) = 3 [pid 5727] <... bpf resumed>) = 5 [pid 5725] <... bpf resumed>) = 5 executing program [pid 5729] close(3 [pid 5728] write(3, "1000", 4 [pid 5727] exit_group(0 [pid 5726] exit_group(0 [pid 5725] exit_group(0 [pid 5729] <... close resumed>) = 0 [pid 5728] <... write resumed>) = 4 [pid 5727] <... exit_group resumed>) = ? [pid 5726] <... exit_group resumed>) = ? [pid 5729] write(1, "executing program\n", 18 [pid 5728] close(3 [pid 5729] <... write resumed>) = 18 [pid 5728] <... close resumed>) = 0 executing program [pid 5729] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5728] write(1, "executing program\n", 18 [pid 5727] +++ exited with 0 +++ [pid 5726] +++ exited with 0 +++ [pid 5725] <... exit_group resumed>) = ? [pid 5729] <... bpf resumed>) = 3 [pid 5728] <... write resumed>) = 18 [pid 5725] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5729] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5728] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5729] <... bpf resumed>) = 4 [pid 5728] <... bpf resumed>) = 3 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... restart_syscall resumed>) = 0 [pid 5729] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5728] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5730 attached ./strace-static-x86_64: Process 5731 attached [pid 5728] <... bpf resumed>) = 4 [pid 5730] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5731 [pid 5731] set_robust_list(0x555568f86660, 24 [pid 5730] <... set_robust_list resumed>) = 0 [pid 5729] <... bpf resumed>) = 5 [pid 5728] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5730 [pid 5731] <... set_robust_list resumed>) = 0 [pid 5730] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5729] exit_group(0 [pid 5731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5730] <... prctl resumed>) = 0 [pid 5730] setpgid(0, 0 [pid 5729] <... exit_group resumed>) = ? [pid 5728] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5731] <... prctl resumed>) = 0 [pid 5730] <... setpgid resumed>) = 0 [pid 5728] exit_group(0) = ? [pid 5731] setpgid(0, 0 [pid 5730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5732 attached [pid 5731] <... setpgid resumed>) = 0 [pid 5732] set_robust_list(0x555568f86660, 24 [pid 5731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5730] <... openat resumed>) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5732 [pid 5732] <... set_robust_list resumed>) = 0 [pid 5730] write(3, "1000", 4 [pid 5732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5731] <... openat resumed>) = 3 [pid 5730] <... write resumed>) = 4 [pid 5732] <... prctl resumed>) = 0 [pid 5730] close(3 [pid 5731] write(3, "1000", 4 [pid 5732] setpgid(0, 0 [pid 5730] <... close resumed>) = 0 [pid 5731] <... write resumed>) = 4 executing program [pid 5730] write(1, "executing program\n", 18) = 18 [pid 5730] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5732] <... setpgid resumed>) = 0 [pid 5731] close(3 [pid 5730] <... bpf resumed>) = 3 [pid 5732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5730] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5732] <... openat resumed>) = 3 [pid 5731] <... close resumed>) = 0 [pid 5729] +++ exited with 0 +++ [pid 5728] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD executing program [pid 5732] write(3, "1000", 4 [pid 5731] write(1, "executing program\n", 18 [pid 5730] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5732] <... write resumed>) = 4 [pid 5731] <... write resumed>) = 18 [pid 5731] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5733 attached [pid 5732] close(3 [pid 5731] <... bpf resumed>) = 3 [pid 5730] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5733] set_robust_list(0x555568f86660, 24 [pid 5732] <... close resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5733] <... set_robust_list resumed>) = 0 [pid 5732] write(1, "executing program\n", 18 [pid 5731] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5730] <... bpf resumed>) = 5 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5733 [pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5732] <... write resumed>) = 18 [pid 5733] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5734 attached [pid 5733] setpgid(0, 0 [pid 5732] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5730] exit_group(0 [pid 5734] set_robust_list(0x555568f86660, 24 [pid 5733] <... setpgid resumed>) = 0 [pid 5732] <... bpf resumed>) = 3 [pid 5731] <... bpf resumed>) = 4 [pid 5730] <... exit_group resumed>) = ? [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5734 [pid 5734] <... set_robust_list resumed>) = 0 [pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5731] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5731] exit_group(0 [pid 5734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5733] <... openat resumed>) = 3 [pid 5732] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5734] <... prctl resumed>) = 0 [pid 5733] write(3, "1000", 4 [pid 5732] <... bpf resumed>) = 4 [pid 5731] <... exit_group resumed>) = ? [pid 5734] setpgid(0, 0 [pid 5733] <... write resumed>) = 4 [pid 5733] close(3 [pid 5734] <... setpgid resumed>) = 0 [pid 5733] <... close resumed>) = 0 [pid 5732] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5733] write(1, "executing program\n", 18 [pid 5732] <... bpf resumed>) = 5 executing program [pid 5730] +++ exited with 0 +++ [pid 5734] <... openat resumed>) = 3 [pid 5733] <... write resumed>) = 18 [pid 5733] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5732] exit_group(0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5730, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5734] write(3, "1000", 4 [pid 5732] <... exit_group resumed>) = ? [pid 5734] <... write resumed>) = 4 [pid 5733] <... bpf resumed>) = 3 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5734] close(3) = 0 [pid 5733] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5734] write(1, "executing program\n", 18) = 18 [pid 5733] <... bpf resumed>) = 4 [pid 5734] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5733] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5734] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5735 attached [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5735 [pid 5735] set_robust_list(0x555568f86660, 24 [pid 5734] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5735] <... set_robust_list resumed>) = 0 [pid 5735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5734] <... bpf resumed>) = 4 [pid 5731] +++ exited with 0 +++ [pid 5735] <... prctl resumed>) = 0 [pid 5732] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5734] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5735] setpgid(0, 0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5228] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5735] <... setpgid resumed>) = 0 [pid 5735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5734] <... bpf resumed>) = 5 [pid 5733] <... bpf resumed>) = 5 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5735] write(3, "1000", 4 [pid 5734] exit_group(0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5735] <... write resumed>) = 4 [pid 5735] close(3 [pid 5734] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5737 attached ./strace-static-x86_64: Process 5736 attached [pid 5735] <... close resumed>) = 0 [pid 5733] exit_group(0 [pid 5737] set_robust_list(0x555568f86660, 24 [pid 5736] set_robust_list(0x555568f86660, 24 [pid 5733] <... exit_group resumed>) = ? executing program [pid 5734] +++ exited with 0 +++ [pid 5735] write(1, "executing program\n", 18 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5736 [pid 5735] <... write resumed>) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5734, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5735] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5735] <... bpf resumed>) = 3 [pid 5735] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5733] +++ exited with 0 +++ [pid 5736] <... set_robust_list resumed>) = 0 [pid 5737] <... set_robust_list resumed>) = 0 [pid 5736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5737 [pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5736] <... prctl resumed>) = 0 [pid 5735] <... bpf resumed>) = 4 [pid 5737] <... prctl resumed>) = 0 [pid 5736] setpgid(0, 0 [pid 5737] setpgid(0, 0 [pid 5736] <... setpgid resumed>) = 0 [pid 5737] <... setpgid resumed>) = 0 [pid 5735] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5736] write(3, "1000", 4 [pid 5737] <... openat resumed>) = 3 [pid 5736] <... write resumed>) = 4 executing program [pid 5737] write(3, "1000", 4) = 4 [pid 5736] close(3 [pid 5737] close(3 [pid 5736] <... close resumed>) = 0 [pid 5736] write(1, "executing program\n", 18 [pid 5737] <... close resumed>) = 0 [pid 5736] <... write resumed>) = 18 [pid 5737] write(1, "executing program\n", 18executing program [pid 5736] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5737] <... write resumed>) = 18 [pid 5736] <... bpf resumed>) = 3 [pid 5737] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5735] <... bpf resumed>) = 5 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5736] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5735] exit_group(0) = ? [pid 5737] <... bpf resumed>) = 3 [pid 5736] <... bpf resumed>) = 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5737] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5735] +++ exited with 0 +++ ./strace-static-x86_64: Process 5738 attached [pid 5736] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5737] <... bpf resumed>) = 4 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5738] set_robust_list(0x555568f86660, 24 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5738] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5738 [pid 5738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5737] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5738] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5739 attached [pid 5738] setpgid(0, 0) = 0 [pid 5739] set_robust_list(0x555568f86660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5739 [pid 5739] <... set_robust_list resumed>) = 0 [pid 5739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5739] <... prctl resumed>) = 0 [pid 5738] <... openat resumed>) = 3 [pid 5737] <... bpf resumed>) = 5 [pid 5736] <... bpf resumed>) = 5 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5739] setpgid(0, 0 [pid 5738] write(3, "1000", 4 [pid 5737] exit_group(0 [pid 5736] exit_group(0 [pid 5739] <... setpgid resumed>) = 0 [pid 5738] <... write resumed>) = 4 [pid 5736] <... exit_group resumed>) = ? [pid 5739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5738] close(3 [pid 5737] <... exit_group resumed>) = ? [pid 5739] <... openat resumed>) = 3 [pid 5738] <... close resumed>) = 0 executing program [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5738] write(1, "executing program\n", 18) = 18 [pid 5739] write(3, "1000", 4 [pid 5738] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5739] <... write resumed>) = 4 [pid 5739] close(3./strace-static-x86_64: Process 5740 attached [pid 5738] <... bpf resumed>) = 3 [pid 5740] set_robust_list(0x555568f86660, 24 [pid 5739] <... close resumed>) = 0 executing program [pid 5740] <... set_robust_list resumed>) = 0 [pid 5739] write(1, "executing program\n", 18 [pid 5738] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5739] <... write resumed>) = 18 [pid 5738] <... bpf resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5740 [pid 5740] <... prctl resumed>) = 0 [pid 5739] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5740] setpgid(0, 0 [pid 5739] <... bpf resumed>) = 3 [pid 5738] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5740] <... setpgid resumed>) = 0 [pid 5739] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5738] <... bpf resumed>) = 5 [pid 5736] +++ exited with 0 +++ [pid 5740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5739] <... bpf resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5740] write(3, "1000", 4 [pid 5738] exit_group(0 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5740] <... write resumed>) = 4 [pid 5738] <... exit_group resumed>) = ? [pid 5740] close(3) = 0 executing program [pid 5740] write(1, "executing program\n", 18) = 18 [pid 5740] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5739] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5740] <... bpf resumed>) = 3 [pid 5740] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5740] <... bpf resumed>) = 4 [pid 5738] +++ exited with 0 +++ [pid 5737] +++ exited with 0 +++ [pid 5740] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5741 attached [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5741 [pid 5741] set_robust_list(0x555568f86660, 24) = 0 [pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5741] setpgid(0, 0) = 0 [pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5741] write(3, "1000", 4) = 4 [pid 5741] close(3) = 0 [pid 5741] write(1, "executing program\n", 18 [pid 5740] <... bpf resumed>) = 5 [pid 5739] <... bpf resumed>) = 5 executing program [pid 5741] <... write resumed>) = 18 [pid 5740] exit_group(0 [pid 5741] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5739] exit_group(0 [pid 5741] <... bpf resumed>) = 3 [pid 5740] <... exit_group resumed>) = ? [pid 5739] <... exit_group resumed>) = ? [pid 5741] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5740] +++ exited with 0 +++ [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5741] <... bpf resumed>) = 4 [pid 5739] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5742 attached [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5741] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5743 attached [pid 5742] set_robust_list(0x555568f86660, 24 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] <... restart_syscall resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5742 [pid 5743] set_robust_list(0x555568f86660, 24 [pid 5742] <... set_robust_list resumed>) = 0 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5743 [pid 5742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5743] <... set_robust_list resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5742] <... prctl resumed>) = 0 [pid 5743] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5744 attached [pid 5742] setpgid(0, 0) = 0 [pid 5744] set_robust_list(0x555568f86660, 24) = 0 [pid 5741] <... bpf resumed>) = 5 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5743] <... prctl resumed>) = 0 [pid 5742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5744] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5745 attached [pid 5743] setpgid(0, 0 [pid 5742] <... openat resumed>) = 3 [pid 5741] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5744 [pid 5743] <... setpgid resumed>) = 0 [pid 5745] set_robust_list(0x555568f86660, 24 [pid 5744] setpgid(0, 0 [pid 5745] <... set_robust_list resumed>) = 0 [pid 5744] <... setpgid resumed>) = 0 [pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5742] write(3, "1000", 4 [pid 5741] <... exit_group resumed>) = ? [pid 5745] <... prctl resumed>) = 0 [pid 5744] <... openat resumed>) = 3 [pid 5742] <... write resumed>) = 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5745 [pid 5745] setpgid(0, 0 [pid 5742] close(3) = 0 [pid 5745] <... setpgid resumed>) = 0 [pid 5744] write(3, "1000", 4 [pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5744] <... write resumed>) = 4 [pid 5745] <... openat resumed>) = 3 [pid 5744] close(3) = 0 [pid 5744] write(1, "executing program\n", 18 [pid 5743] <... openat resumed>) = 3 executing program [pid 5742] write(1, "executing program\n", 18 [pid 5745] write(3, "1000", 4 [pid 5744] <... write resumed>) = 18 [pid 5745] <... write resumed>) = 4 executing program [pid 5744] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5745] close(3 [pid 5744] <... bpf resumed>) = 3 [pid 5745] <... close resumed>) = 0 [pid 5745] write(1, "executing program\n", 18) = 18 [pid 5744] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5745] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5744] <... bpf resumed>) = 4 [pid 5745] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5744] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5743] write(3, "1000", 4 [pid 5742] <... write resumed>) = 18 [pid 5741] +++ exited with 0 +++ [pid 5745] <... bpf resumed>) = 4 [pid 5743] <... write resumed>) = 4 [pid 5742] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5745] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5743] close(3 [pid 5742] <... bpf resumed>) = 3 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5743] <... close resumed>) = 0 executing program [pid 5742] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5743] write(1, "executing program\n", 18 [pid 5742] <... bpf resumed>) = 4 [pid 5743] <... write resumed>) = 18 [pid 5742] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5743] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5743] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5743] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5745] <... bpf resumed>) = 5 [pid 5744] <... bpf resumed>) = 5 [pid 5742] <... bpf resumed>) = 5 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5745] exit_group(0 [pid 5743] <... bpf resumed>) = 5 [pid 5742] exit_group(0 [pid 5745] <... exit_group resumed>) = ? [pid 5744] exit_group(0 [pid 5743] exit_group(0 [pid 5742] <... exit_group resumed>) = ? [pid 5745] +++ exited with 0 +++ [pid 5744] <... exit_group resumed>) = ? [pid 5743] <... exit_group resumed>) = ? [pid 5742] +++ exited with 0 +++ [pid 5743] +++ exited with 0 +++ [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5742, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5746 attached [pid 5746] set_robust_list(0x555568f86660, 24) = 0 [pid 5746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5744] +++ exited with 0 +++ [pid 5236] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5746 [pid 5228] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5746] <... prctl resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5746] setpgid(0, 0) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5749 attached ./strace-static-x86_64: Process 5748 attached ./strace-static-x86_64: Process 5747 attached [pid 5749] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5750 attached ) = 0 [pid 5748] set_robust_list(0x555568f86660, 24 [pid 5747] set_robust_list(0x555568f86660, 24 [pid 5746] <... openat resumed>) = 3 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5748 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5750 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5749 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5747 [pid 5750] set_robust_list(0x555568f86660, 24 [pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5748] <... set_robust_list resumed>) = 0 [pid 5747] <... set_robust_list resumed>) = 0 [pid 5746] write(3, "1000", 4 [pid 5750] <... set_robust_list resumed>) = 0 [pid 5749] <... prctl resumed>) = 0 [pid 5748] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5746] <... write resumed>) = 4 [pid 5750] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5749] setpgid(0, 0 [pid 5748] <... prctl resumed>) = 0 [pid 5747] <... prctl resumed>) = 0 [pid 5746] close(3 [pid 5750] <... prctl resumed>) = 0 [pid 5749] <... setpgid resumed>) = 0 [pid 5748] setpgid(0, 0 [pid 5747] setpgid(0, 0 [pid 5748] <... setpgid resumed>) = 0 [pid 5746] <... close resumed>) = 0 [pid 5750] setpgid(0, 0 [pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5747] <... setpgid resumed>) = 0 [pid 5750] <... setpgid resumed>) = 0 [pid 5749] <... openat resumed>) = 3 [pid 5748] <... openat resumed>) = 3 [pid 5747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5746] write(1, "executing program\n", 18 [pid 5749] write(3, "1000", 4 [pid 5750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program [pid 5748] write(3, "1000", 4 [pid 5749] <... write resumed>) = 4 [pid 5748] <... write resumed>) = 4 [pid 5747] <... openat resumed>) = 3 [pid 5746] <... write resumed>) = 18 [pid 5748] close(3) = 0 [pid 5748] write(1, "executing program\n", 18 executing program executing program [pid 5746] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5750] <... openat resumed>) = 3 [pid 5749] close(3 [pid 5748] <... write resumed>) = 18 [pid 5747] write(3, "1000", 4 [pid 5746] <... bpf resumed>) = 3 [pid 5749] <... close resumed>) = 0 [pid 5750] write(3, "1000", 4 [pid 5749] write(1, "executing program\n", 18 [pid 5750] <... write resumed>) = 4 [pid 5750] close(3 [pid 5749] <... write resumed>) = 18 [pid 5748] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5747] <... write resumed>) = 4 [pid 5750] <... close resumed>) = 0 [pid 5749] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5746] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5750] write(1, "executing program\n", 18 [pid 5749] <... bpf resumed>) = 3 [pid 5748] <... bpf resumed>) = 3 [pid 5747] close(3 [pid 5750] <... write resumed>) = 18 [pid 5748] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5747] <... close resumed>) = 0 [pid 5750] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5746] <... bpf resumed>) = 4 [pid 5750] <... bpf resumed>) = 3 [pid 5750] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5749] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5750] <... bpf resumed>) = 4 [pid 5749] <... bpf resumed>) = 4 [pid 5748] <... bpf resumed>) = 4 [pid 5747] write(1, "executing program\n", 18 [pid 5750] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5749] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5748] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5747] <... write resumed>) = 18 [pid 5746] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5747] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5750] <... bpf resumed>) = 5 [pid 5749] <... bpf resumed>) = 5 [pid 5748] <... bpf resumed>) = 5 [pid 5746] <... bpf resumed>) = 5 [pid 5750] exit_group(0 [pid 5747] <... bpf resumed>) = 3 [pid 5747] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5750] <... exit_group resumed>) = ? [pid 5749] exit_group(0 [pid 5748] exit_group(0 [pid 5746] exit_group(0 [pid 5747] <... bpf resumed>) = 4 [pid 5747] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5749] <... exit_group resumed>) = ? [pid 5748] <... exit_group resumed>) = ? [pid 5746] <... exit_group resumed>) = ? [pid 5750] +++ exited with 0 +++ [pid 5747] <... bpf resumed>) = 5 [pid 5749] +++ exited with 0 +++ [pid 5748] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5747] exit_group(0 [pid 5746] +++ exited with 0 +++ [pid 5747] <... exit_group resumed>) = ? [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5747] +++ exited with 0 +++ [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5746, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] <... restart_syscall resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5747, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5751 attached [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5751] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5751 [pid 5751] <... set_robust_list resumed>) = 0 [pid 5751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5752 attached [pid 5751] <... prctl resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5753 attached ./strace-static-x86_64: Process 5754 attached [pid 5753] set_robust_list(0x555568f86660, 24 [pid 5752] set_robust_list(0x555568f86660, 24 [pid 5751] setpgid(0, 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5753 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5752 ./strace-static-x86_64: Process 5755 attached [pid 5754] set_robust_list(0x555568f86660, 24 [pid 5753] <... set_robust_list resumed>) = 0 [pid 5752] <... set_robust_list resumed>) = 0 [pid 5751] <... setpgid resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5754 [pid 5755] set_robust_list(0x555568f86660, 24 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5755 [pid 5755] <... set_robust_list resumed>) = 0 [pid 5751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5755] <... prctl resumed>) = 0 [pid 5755] setpgid(0, 0) = 0 [pid 5754] <... set_robust_list resumed>) = 0 [pid 5753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5752] <... prctl resumed>) = 0 [pid 5751] <... openat resumed>) = 3 [pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5753] <... prctl resumed>) = 0 [pid 5752] setpgid(0, 0 [pid 5751] write(3, "1000", 4 [pid 5753] setpgid(0, 0 [pid 5755] <... openat resumed>) = 3 [pid 5754] <... prctl resumed>) = 0 [pid 5753] <... setpgid resumed>) = 0 [pid 5752] <... setpgid resumed>) = 0 [pid 5751] <... write resumed>) = 4 [pid 5755] write(3, "1000", 4 [pid 5754] setpgid(0, 0 [pid 5753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5751] close(3 [pid 5754] <... setpgid resumed>) = 0 [pid 5755] <... write resumed>) = 4 [pid 5754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5751] <... close resumed>) = 0 [pid 5752] <... openat resumed>) = 3 [pid 5754] <... openat resumed>) = 3 [pid 5754] write(3, "1000", 4 [pid 5755] close(3executing program [pid 5754] <... write resumed>) = 4 [pid 5753] <... openat resumed>) = 3 [pid 5752] write(3, "1000", 4 [pid 5751] write(1, "executing program\n", 18executing program executing program [pid 5755] <... close resumed>) = 0 [pid 5754] close(3 [pid 5753] write(3, "1000", 4 [pid 5752] <... write resumed>) = 4 [pid 5751] <... write resumed>) = 18 [pid 5755] write(1, "executing program\n", 18 [pid 5752] close(3 [pid 5755] <... write resumed>) = 18 [pid 5754] <... close resumed>) = 0 [pid 5754] write(1, "executing program\n", 18 [pid 5751] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5755] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5754] <... write resumed>) = 18 [pid 5753] <... write resumed>) = 4 [pid 5752] <... close resumed>) = 0 [pid 5754] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5751] <... bpf resumed>) = 3 [pid 5752] write(1, "executing program\n", 18 [pid 5755] <... bpf resumed>) = 3 [pid 5754] <... bpf resumed>) = 3 executing program [pid 5753] close(3 [pid 5754] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5755] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5753] <... close resumed>) = 0 [pid 5752] <... write resumed>) = 18 [pid 5751] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5755] <... bpf resumed>) = 4 [pid 5754] <... bpf resumed>) = 4 [pid 5753] write(1, "executing program\n", 18 [pid 5752] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5751] <... bpf resumed>) = 4 executing program [pid 5753] <... write resumed>) = 18 [pid 5752] <... bpf resumed>) = 3 [pid 5753] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5755] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5754] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5753] <... bpf resumed>) = 3 [pid 5752] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5751] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5755] <... bpf resumed>) = 5 [pid 5754] <... bpf resumed>) = 5 [pid 5753] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5752] <... bpf resumed>) = 4 [pid 5751] <... bpf resumed>) = 5 [pid 5755] exit_group(0 [pid 5754] exit_group(0 [pid 5753] <... bpf resumed>) = 4 [pid 5755] <... exit_group resumed>) = ? [pid 5754] <... exit_group resumed>) = ? [pid 5751] exit_group(0 [pid 5752] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5753] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5754] +++ exited with 0 +++ [pid 5751] <... exit_group resumed>) = ? [pid 5752] <... bpf resumed>) = 5 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5751] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5752] exit_group(0) = ? [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5756 attached , child_tidptr=0x555568f86650) = 5756 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5756] set_robust_list(0x555568f86660, 24) = 0 [pid 5756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5756] setpgid(0, 0) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5757 attached [pid 5755] +++ exited with 0 +++ [pid 5753] <... bpf resumed>) = 5 [pid 5757] set_robust_list(0x555568f86660, 24) = 0 [pid 5756] write(3, "1000", 4 [pid 5753] exit_group(0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5757 [pid 5757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5756] <... write resumed>) = 4 [pid 5757] <... prctl resumed>) = 0 [pid 5756] close(3 [pid 5753] <... exit_group resumed>) = ? [pid 5757] setpgid(0, 0 [pid 5756] <... close resumed>) = 0 [pid 5757] <... setpgid resumed>) = 0 executing program [pid 5756] write(1, "executing program\n", 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5756] <... write resumed>) = 18 [pid 5756] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5758 attached [pid 5757] <... openat resumed>) = 3 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5758 [pid 5758] set_robust_list(0x555568f86660, 24 [pid 5756] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5757] write(3, "1000", 4 [pid 5758] <... set_robust_list resumed>) = 0 [pid 5758] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5757] <... write resumed>) = 4 [pid 5756] <... bpf resumed>) = 4 [pid 5757] close(3executing program [pid 5758] <... prctl resumed>) = 0 [pid 5757] <... close resumed>) = 0 [pid 5758] setpgid(0, 0 [pid 5757] write(1, "executing program\n", 18 [pid 5758] <... setpgid resumed>) = 0 [pid 5757] <... write resumed>) = 18 [pid 5758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5756] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5757] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5758] <... openat resumed>) = 3 [pid 5757] <... bpf resumed>) = 3 [pid 5753] +++ exited with 0 +++ [pid 5752] +++ exited with 0 +++ [pid 5758] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5758] <... write resumed>) = 4 [pid 5758] close(3) = 0 [pid 5758] write(1, "executing program\n", 18executing program ) = 18 [pid 5758] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5758] <... bpf resumed>) = 3 [pid 5757] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5759 attached [pid 5758] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5759] set_robust_list(0x555568f86660, 24 [pid 5757] <... bpf resumed>) = 4 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5759] <... set_robust_list resumed>) = 0 [pid 5758] <... bpf resumed>) = 4 [pid 5757] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5759 ./strace-static-x86_64: Process 5760 attached [pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5759] setpgid(0, 0) = 0 [pid 5760] set_robust_list(0x555568f86660, 24 [pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5758] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5760 [pid 5760] <... set_robust_list resumed>) = 0 [pid 5760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5760] setpgid(0, 0) = 0 [pid 5760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5759] <... openat resumed>) = 3 [pid 5758] <... bpf resumed>) = 5 [pid 5757] <... bpf resumed>) = 5 [pid 5759] write(3, "1000", 4 [pid 5756] <... bpf resumed>) = 5 [pid 5759] <... write resumed>) = 4 [pid 5760] <... openat resumed>) = 3 [pid 5759] close(3 [pid 5758] exit_group(0 [pid 5757] exit_group(0 [pid 5756] exit_group(0 [pid 5760] write(3, "1000", 4 [pid 5758] <... exit_group resumed>) = ? [pid 5759] <... close resumed>) = 0 [pid 5757] <... exit_group resumed>) = ? [pid 5756] <... exit_group resumed>) = ? [pid 5760] <... write resumed>) = 4 [pid 5759] write(1, "executing program\n", 18 [pid 5758] +++ exited with 0 +++ [pid 5757] +++ exited with 0 +++ [pid 5760] close(3executing program executing program ) = 0 [pid 5759] <... write resumed>) = 18 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5758, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5760] write(1, "executing program\n", 18 [pid 5759] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5760] <... write resumed>) = 18 [pid 5756] +++ exited with 0 +++ [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5760] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5759] <... bpf resumed>) = 3 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5759] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5760] <... bpf resumed>) = 3 [pid 5760] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5759] <... bpf resumed>) = 4 [pid 5759] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5760] <... bpf resumed>) = 4 [pid 5760] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5761 attached [pid 5760] <... bpf resumed>) = 5 [pid 5759] <... bpf resumed>) = 5 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5762 attached [pid 5761] set_robust_list(0x555568f86660, 24 [pid 5760] exit_group(0 [pid 5759] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5761 [pid 5762] set_robust_list(0x555568f86660, 24 [pid 5760] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5763 attached [pid 5762] <... set_robust_list resumed>) = 0 [pid 5761] <... set_robust_list resumed>) = 0 [pid 5760] +++ exited with 0 +++ [pid 5759] <... exit_group resumed>) = ? [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5762 [pid 5763] set_robust_list(0x555568f86660, 24) = 0 [pid 5762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5759] +++ exited with 0 +++ [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5763 [pid 5761] <... prctl resumed>) = 0 [pid 5762] <... prctl resumed>) = 0 [pid 5761] setpgid(0, 0 [pid 5763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5762] setpgid(0, 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5763] <... prctl resumed>) = 0 [pid 5762] <... setpgid resumed>) = 0 [pid 5763] setpgid(0, 0 [pid 5762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5761] <... setpgid resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5763] <... setpgid resumed>) = 0 [pid 5763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5762] <... openat resumed>) = 3 [pid 5761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5762] write(3, "1000", 4) = 4 [pid 5762] close(3executing program [pid 5763] <... openat resumed>) = 3 [pid 5762] <... close resumed>) = 0 [pid 5762] write(1, "executing program\n", 18) = 18 [pid 5763] write(3, "1000", 4 [pid 5761] <... openat resumed>) = 3 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5761] write(3, "1000", 4 [pid 5763] <... write resumed>) = 4 [pid 5762] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5761] <... write resumed>) = 4 [pid 5763] close(3 [pid 5762] <... bpf resumed>) = 3 [pid 5761] close(3 [pid 5763] <... close resumed>) = 0 executing program [pid 5761] <... close resumed>) = 0 [pid 5763] write(1, "executing program\n", 18 [pid 5762] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5764 attached [pid 5763] <... write resumed>) = 18 executing program [pid 5762] <... bpf resumed>) = 4 [pid 5761] write(1, "executing program\n", 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5763] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5761] <... write resumed>) = 18 [pid 5762] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5765 attached [pid 5764] set_robust_list(0x555568f86660, 24 [pid 5763] <... bpf resumed>) = 3 [pid 5762] <... bpf resumed>) = 5 [pid 5761] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5764 [pid 5765] set_robust_list(0x555568f86660, 24) = 0 [pid 5764] <... set_robust_list resumed>) = 0 [pid 5763] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5762] exit_group(0 [pid 5761] <... bpf resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5765 [pid 5765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5763] <... bpf resumed>) = 4 [pid 5762] <... exit_group resumed>) = ? [pid 5761] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5765] <... prctl resumed>) = 0 [pid 5764] <... prctl resumed>) = 0 [pid 5765] setpgid(0, 0 [pid 5764] setpgid(0, 0 [pid 5763] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5762] +++ exited with 0 +++ [pid 5761] <... bpf resumed>) = 4 [pid 5765] <... setpgid resumed>) = 0 [pid 5764] <... setpgid resumed>) = 0 [pid 5765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5762, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5765] <... openat resumed>) = 3 [pid 5764] <... openat resumed>) = 3 [pid 5761] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5764] write(3, "1000", 4 [pid 5765] write(3, "1000", 4 [pid 5763] <... bpf resumed>) = 5 [pid 5761] <... bpf resumed>) = 5 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5765] <... write resumed>) = 4 [pid 5764] <... write resumed>) = 4 [pid 5761] exit_group(0 [pid 5765] close(3 [pid 5764] close(3 [pid 5763] exit_group(0 [pid 5765] <... close resumed>) = 0 [pid 5764] <... close resumed>) = 0 [pid 5761] <... exit_group resumed>) = ? [pid 5765] write(1, "executing program\n", 18 [pid 5764] write(1, "executing program\n", 18 [pid 5763] <... exit_group resumed>) = ? [pid 5761] +++ exited with 0 +++ executing program executing program [pid 5765] <... write resumed>) = 18 [pid 5764] <... write resumed>) = 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5765] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5764] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5765] <... bpf resumed>) = 3 [pid 5764] <... bpf resumed>) = 3 [pid 5763] +++ exited with 0 +++ [pid 5764] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5766 attached [pid 5765] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5766 [pid 5765] <... bpf resumed>) = 4 [pid 5764] <... bpf resumed>) = 4 [pid 5766] set_robust_list(0x555568f86660, 24 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5766] <... set_robust_list resumed>) = 0 [pid 5765] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5764] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5766] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5765] <... bpf resumed>) = 5 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5766] <... prctl resumed>) = 0 [pid 5764] <... bpf resumed>) = 5 [pid 5766] setpgid(0, 0 [pid 5764] exit_group(0./strace-static-x86_64: Process 5767 attached [pid 5766] <... setpgid resumed>) = 0 [pid 5767] set_robust_list(0x555568f86660, 24 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5764] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5768 attached [pid 5767] <... set_robust_list resumed>) = 0 [pid 5766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5765] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5767 [pid 5766] write(3, "1000", 4 [pid 5765] <... exit_group resumed>) = ? [pid 5768] set_robust_list(0x555568f86660, 24 [pid 5767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5764] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5768 executing program [pid 5768] <... set_robust_list resumed>) = 0 [pid 5767] <... prctl resumed>) = 0 [pid 5766] <... write resumed>) = 4 [pid 5766] close(3 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5766] <... close resumed>) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5766] write(1, "executing program\n", 18 [pid 5765] +++ exited with 0 +++ [pid 5766] <... write resumed>) = 18 [pid 5768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5767] setpgid(0, 0 [pid 5766] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5768] <... prctl resumed>) = 0 [pid 5767] <... setpgid resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5768] setpgid(0, 0 [pid 5767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5768] <... setpgid resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5767] <... openat resumed>) = 3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5768] <... openat resumed>) = 3 [pid 5767] write(3, "1000", 4 [pid 5766] <... bpf resumed>) = 3 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5766] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5769 attached [pid 5768] write(3, "1000", 4 [pid 5767] <... write resumed>) = 4 [pid 5769] set_robust_list(0x555568f86660, 24 [pid 5768] <... write resumed>) = 4 [pid 5767] close(3 [pid 5766] <... bpf resumed>) = 4 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5769 [pid 5769] <... set_robust_list resumed>) = 0 [pid 5768] close(3 [pid 5767] <... close resumed>) = 0 [pid 5766] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5768] <... close resumed>) = 0 [pid 5767] write(1, "executing program\n", 18./strace-static-x86_64: Process 5770 attached ) = 18 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5770 [pid 5770] set_robust_list(0x555568f86660, 24 [pid 5769] <... prctl resumed>) = 0 [pid 5768] write(1, "executing program\n", 18 [pid 5767] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5766] <... bpf resumed>) = 5 executing program [pid 5767] <... bpf resumed>) = 3 [pid 5766] exit_group(0 [pid 5770] <... set_robust_list resumed>) = 0 [pid 5769] setpgid(0, 0 [pid 5770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5768] <... write resumed>) = 18 [pid 5767] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5769] <... setpgid resumed>) = 0 [pid 5766] <... exit_group resumed>) = ? [pid 5770] <... prctl resumed>) = 0 [pid 5768] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5770] setpgid(0, 0 [pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5770] <... setpgid resumed>) = 0 [pid 5769] <... openat resumed>) = 3 [pid 5768] <... bpf resumed>) = 3 [pid 5767] <... bpf resumed>) = 4 [pid 5767] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5769] write(3, "1000", 4 [pid 5768] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5766] +++ exited with 0 +++ [pid 5770] <... openat resumed>) = 3 [pid 5769] <... write resumed>) = 4 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5769] close(3) = 0 [pid 5770] write(3, "1000", 4 [pid 5769] write(1, "executing program\n", 18 [pid 5768] <... bpf resumed>) = 4 [pid 5767] <... bpf resumed>) = 5 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5768] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5770] <... write resumed>) = 4 [pid 5769] <... write resumed>) = 18 [pid 5768] <... bpf resumed>) = 5 [pid 5767] exit_group(0 [pid 5768] exit_group(0./strace-static-x86_64: Process 5771 attached [pid 5770] close(3 [pid 5769] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5767] <... exit_group resumed>) = ? [pid 5771] set_robust_list(0x555568f86660, 24) = 0 [pid 5770] <... close resumed>) = 0 [pid 5769] <... bpf resumed>) = 3 [pid 5768] <... exit_group resumed>) = ? [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5771 [pid 5771] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 5770] write(1, "executing program\n", 18 [pid 5771] <... prctl resumed>) = 0 [pid 5770] <... write resumed>) = 18 [pid 5769] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5771] setpgid(0, 0 [pid 5770] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5771] <... setpgid resumed>) = 0 [pid 5770] <... bpf resumed>) = 3 [pid 5771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5769] <... bpf resumed>) = 4 [pid 5770] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5771] <... openat resumed>) = 3 [pid 5769] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5771] write(3, "1000", 4) = 4 [pid 5771] close(3 [pid 5770] <... bpf resumed>) = 4 [pid 5768] +++ exited with 0 +++ [pid 5767] +++ exited with 0 +++ [pid 5771] <... close resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5767, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5770] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5771] write(1, "executing program\n", 18) = 18 [pid 5771] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5771] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5772 attached [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5772] set_robust_list(0x555568f86660, 24 [pid 5771] <... bpf resumed>) = 4 [pid 5772] <... set_robust_list resumed>) = 0 [pid 5772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5772 [pid 5772] <... prctl resumed>) = 0 [pid 5772] setpgid(0, 0) = 0 [pid 5772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5773 attached [pid 5771] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5772] <... openat resumed>) = 3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5773 [pid 5773] set_robust_list(0x555568f86660, 24 [pid 5772] write(3, "1000", 4 [pid 5773] <... set_robust_list resumed>) = 0 [pid 5772] <... write resumed>) = 4 [pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5772] close(3 [pid 5773] <... prctl resumed>) = 0 [pid 5773] setpgid(0, 0) = 0 [pid 5772] <... close resumed>) = 0 executing program [pid 5772] write(1, "executing program\n", 18executing program [pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5772] <... write resumed>) = 18 [pid 5771] <... bpf resumed>) = 5 [pid 5770] <... bpf resumed>) = 5 [pid 5769] <... bpf resumed>) = 5 [pid 5773] <... openat resumed>) = 3 [pid 5772] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5771] exit_group(0 [pid 5770] exit_group(0 [pid 5769] exit_group(0 [pid 5771] <... exit_group resumed>) = ? [pid 5769] <... exit_group resumed>) = ? [pid 5772] <... bpf resumed>) = 3 [pid 5773] write(3, "1000", 4 [pid 5770] <... exit_group resumed>) = ? [pid 5773] <... write resumed>) = 4 [pid 5769] +++ exited with 0 +++ [pid 5773] close(3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5773] <... close resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5773] write(1, "executing program\n", 18) = 18 [pid 5773] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5773] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5772] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5773] <... bpf resumed>) = 4 [pid 5773] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5772] <... bpf resumed>) = 4 [pid 5772] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5771] +++ exited with 0 +++ [pid 5770] +++ exited with 0 +++ [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5771, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] restart_syscall(<... resuming interrupted clone ...> [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555568f86650) = 5774 ./strace-static-x86_64: Process 5774 attached [pid 5774] set_robust_list(0x555568f86660, 24 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5774] <... set_robust_list resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5775 attached ./strace-static-x86_64: Process 5776 attached [pid 5775] set_robust_list(0x555568f86660, 24 [pid 5774] <... prctl resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5775 [pid 5776] set_robust_list(0x555568f86660, 24 [pid 5775] <... set_robust_list resumed>) = 0 [pid 5776] <... set_robust_list resumed>) = 0 [pid 5776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5774] setpgid(0, 0) = 0 [pid 5776] <... prctl resumed>) = 0 [pid 5775] <... prctl resumed>) = 0 [pid 5774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5776 [pid 5776] setpgid(0, 0 [pid 5775] setpgid(0, 0 [pid 5776] <... setpgid resumed>) = 0 [pid 5775] <... setpgid resumed>) = 0 [pid 5774] <... openat resumed>) = 3 [pid 5774] write(3, "1000", 4 [pid 5776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5773] <... bpf resumed>) = 5 [pid 5772] <... bpf resumed>) = 5 [pid 5776] <... openat resumed>) = 3 [pid 5775] <... openat resumed>) = 3 [pid 5774] <... write resumed>) = 4 [pid 5773] exit_group(0 [pid 5772] exit_group(0 [pid 5774] close(3 [pid 5773] <... exit_group resumed>) = ? [pid 5772] <... exit_group resumed>) = ? [pid 5776] write(3, "1000", 4 [pid 5775] write(3, "1000", 4 [pid 5774] <... close resumed>) = 0 [pid 5776] <... write resumed>) = 4 [pid 5775] <... write resumed>) = 4 [pid 5774] write(1, "executing program\n", 18executing program ) = 18 [pid 5776] close(3 [pid 5775] close(3 [pid 5774] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5776] <... close resumed>) = 0 [pid 5775] <... close resumed>) = 0 executing program [pid 5776] write(1, "executing program\n", 18 executing program [pid 5775] write(1, "executing program\n", 18 [pid 5774] <... bpf resumed>) = 3 [pid 5776] <... write resumed>) = 18 [pid 5775] <... write resumed>) = 18 [pid 5774] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5776] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5775] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5776] <... bpf resumed>) = 3 [pid 5775] <... bpf resumed>) = 3 [pid 5774] <... bpf resumed>) = 4 [pid 5776] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5775] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5776] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5774] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5775] <... bpf resumed>) = 4 [pid 5775] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5773] +++ exited with 0 +++ [pid 5772] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5777 attached [pid 5777] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5777 ./strace-static-x86_64: Process 5778 attached [pid 5777] <... set_robust_list resumed>) = 0 [pid 5776] <... bpf resumed>) = 5 [pid 5775] <... bpf resumed>) = 5 [pid 5774] <... bpf resumed>) = 5 [pid 5778] set_robust_list(0x555568f86660, 24) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5776] exit_group(0 [pid 5775] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5778 [pid 5774] exit_group(0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5777] <... prctl resumed>) = 0 [pid 5775] <... exit_group resumed>) = ? [pid 5774] <... exit_group resumed>) = ? [pid 5778] <... prctl resumed>) = 0 [pid 5776] <... exit_group resumed>) = ? [pid 5777] setpgid(0, 0 [pid 5775] +++ exited with 0 +++ [pid 5774] +++ exited with 0 +++ [pid 5778] setpgid(0, 0 [pid 5777] <... setpgid resumed>) = 0 [pid 5776] +++ exited with 0 +++ [pid 5778] <... setpgid resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5774, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5775, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5777] <... openat resumed>) = 3 [pid 5778] <... openat resumed>) = 3 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5777] write(3, "1000", 4) = 4 [pid 5777] close(3) = 0 [pid 5777] write(1, "executing program\n", 18 [pid 5778] write(3, "1000", 4executing program ) = 4 [pid 5777] <... write resumed>) = 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5778] close(3executing program ) = 0 [pid 5778] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 5779 attached [pid 5778] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5777] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5779 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5779] set_robust_list(0x555568f86660, 24 [pid 5778] <... bpf resumed>) = 3 [pid 5777] <... bpf resumed>) = 3 [pid 5779] <... set_robust_list resumed>) = 0 [pid 5778] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5781 attached ./strace-static-x86_64: Process 5780 attached ) = 0 [pid 5777] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5781] set_robust_list(0x555568f86660, 24 [pid 5780] set_robust_list(0x555568f86660, 24 [pid 5778] <... bpf resumed>) = 4 [pid 5779] setpgid(0, 0) = 0 [pid 5780] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5781 [pid 5781] <... set_robust_list resumed>) = 0 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5778] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5777] <... bpf resumed>) = 4 [pid 5781] <... prctl resumed>) = 0 [pid 5780] <... prctl resumed>) = 0 [pid 5779] <... openat resumed>) = 3 [pid 5777] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5780 [pid 5781] setpgid(0, 0 [pid 5780] setpgid(0, 0 [pid 5779] write(3, "1000", 4 [pid 5781] <... setpgid resumed>) = 0 [pid 5780] <... setpgid resumed>) = 0 [pid 5779] <... write resumed>) = 4 [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5779] close(3 [pid 5778] <... bpf resumed>) = 5 [pid 5778] exit_group(0) = ? [pid 5777] <... bpf resumed>) = 5 [pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5780] <... openat resumed>) = 3 [pid 5779] <... close resumed>) = 0 executing program [pid 5780] write(3, "1000", 4 [pid 5779] write(1, "executing program\n", 18 [pid 5781] <... openat resumed>) = 3 [pid 5780] <... write resumed>) = 4 [pid 5779] <... write resumed>) = 18 [pid 5777] exit_group(0 [pid 5781] write(3, "1000", 4) = 4 executing program [pid 5779] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5780] close(3 [pid 5781] close(3 [pid 5777] <... exit_group resumed>) = ? [pid 5781] <... close resumed>) = 0 [pid 5779] <... bpf resumed>) = 3 [pid 5781] write(1, "executing program\n", 18 [pid 5780] <... close resumed>) = 0 [pid 5781] <... write resumed>) = 18 [pid 5781] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5780] write(1, "executing program\n", 18 [pid 5779] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5778] +++ exited with 0 +++ [pid 5777] +++ exited with 0 +++ [pid 5781] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5780] <... write resumed>) = 18 [pid 5780] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5779] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5781] <... bpf resumed>) = 4 [pid 5779] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5781] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5780] <... bpf resumed>) = 3 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5780] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5780] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5782 attached [pid 5781] <... bpf resumed>) = 5 [pid 5779] <... bpf resumed>) = 5 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5782 ./strace-static-x86_64: Process 5783 attached [pid 5782] set_robust_list(0x555568f86660, 24 [pid 5780] <... bpf resumed>) = 5 [pid 5779] exit_group(0 [pid 5781] exit_group(0 [pid 5782] <... set_robust_list resumed>) = 0 [pid 5783] set_robust_list(0x555568f86660, 24 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5781] <... exit_group resumed>) = ? [pid 5780] exit_group(0 [pid 5783] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5783 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5780] <... exit_group resumed>) = ? executing program [pid 5780] +++ exited with 0 +++ [pid 5779] <... exit_group resumed>) = ? [pid 5783] <... prctl resumed>) = 0 [pid 5783] setpgid(0, 0) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5781] +++ exited with 0 +++ [pid 5782] <... prctl resumed>) = 0 [pid 5782] setpgid(0, 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5782] <... setpgid resumed>) = 0 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5783] <... openat resumed>) = 3 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5783] write(3, "1000", 4) = 4 [pid 5783] close(3) = 0 [pid 5783] write(1, "executing program\n", 18) = 18 [pid 5783] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5782] <... openat resumed>) = 3 [pid 5779] +++ exited with 0 +++ [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5783] <... bpf resumed>) = 3 [pid 5782] write(3, "1000", 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5782] <... write resumed>) = 4 [pid 5783] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5782] close(3) = 0 [pid 5782] write(1, "executing program\n", 18 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5783] <... bpf resumed>) = 4 executing program [pid 5782] <... write resumed>) = 18 [pid 5783] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5782] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5783] <... bpf resumed>) = 5 [pid 5782] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5785 attached [pid 5782] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5785] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5786 attached ./strace-static-x86_64: Process 5784 attached ) = 0 [pid 5783] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5785 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5784 [pid 5786] set_robust_list(0x555568f86660, 24 [pid 5784] set_robust_list(0x555568f86660, 24 [pid 5783] <... exit_group resumed>) = ? [pid 5782] <... bpf resumed>) = 4 [pid 5786] <... set_robust_list resumed>) = 0 [pid 5784] <... set_robust_list resumed>) = 0 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5786 [pid 5782] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5782] exit_group(0 [pid 5786] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5786] <... prctl resumed>) = 0 [pid 5785] <... prctl resumed>) = 0 [pid 5786] setpgid(0, 0 [pid 5784] setpgid(0, 0 [pid 5782] <... exit_group resumed>) = ? [pid 5786] <... setpgid resumed>) = 0 [pid 5785] setpgid(0, 0 [pid 5784] <... setpgid resumed>) = 0 [pid 5786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5785] <... setpgid resumed>) = 0 [pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5786] <... openat resumed>) = 3 [pid 5784] <... openat resumed>) = 3 [pid 5785] <... openat resumed>) = 3 [pid 5785] write(3, "1000", 4) = 4 [pid 5785] close(3) = 0 [pid 5786] write(3, "1000", 4 [pid 5784] write(3, "1000", 4 [pid 5783] +++ exited with 0 +++ [pid 5782] +++ exited with 0 +++ [pid 5786] <... write resumed>) = 4 executing program [pid 5785] write(1, "executing program\n", 18 [pid 5784] <... write resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5786] close(3 [pid 5785] <... write resumed>) = 18 [pid 5784] close(3executing program [pid 5786] <... close resumed>) = 0 [pid 5785] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5784] <... close resumed>) = 0 [pid 5786] write(1, "executing program\n", 18 [pid 5785] <... bpf resumed>) = 3 [pid 5784] write(1, "executing program\n", 18 [pid 5786] <... write resumed>) = 18 executing program [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5786] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5785] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5784] <... write resumed>) = 18 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5787 attached [pid 5786] <... bpf resumed>) = 3 [pid 5785] <... bpf resumed>) = 4 [pid 5784] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5788 attached [pid 5787] set_robust_list(0x555568f86660, 24 [pid 5786] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5785] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5784] <... bpf resumed>) = 3 [pid 5788] set_robust_list(0x555568f86660, 24 [pid 5787] <... set_robust_list resumed>) = 0 [pid 5784] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5787 [pid 5788] <... set_robust_list resumed>) = 0 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5786] <... bpf resumed>) = 4 [pid 5785] <... bpf resumed>) = 5 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5788 [pid 5787] <... prctl resumed>) = 0 [pid 5787] setpgid(0, 0) = 0 [pid 5786] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5784] <... bpf resumed>) = 4 [pid 5788] <... prctl resumed>) = 0 [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5786] exit_group(0 [pid 5784] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5788] setpgid(0, 0 [pid 5785] exit_group(0 [pid 5787] <... openat resumed>) = 3 [pid 5786] <... exit_group resumed>) = ? [pid 5784] <... bpf resumed>) = 5 [pid 5788] <... setpgid resumed>) = 0 [pid 5787] write(3, "1000", 4 [pid 5785] <... exit_group resumed>) = ? [pid 5784] exit_group(0 [pid 5788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5787] <... write resumed>) = 4 [pid 5786] +++ exited with 0 +++ [pid 5784] <... exit_group resumed>) = ? [pid 5787] close(3) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5786, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5787] write(1, "executing program\n", 18) = 18 [pid 5788] <... openat resumed>) = 3 [pid 5787] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5788] write(3, "1000", 4 [pid 5785] +++ exited with 0 +++ [pid 5784] +++ exited with 0 +++ [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5788] <... write resumed>) = 4 [pid 5787] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5785, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5788] close(3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5784, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5788] <... close resumed>) = 0 [pid 5788] write(1, "executing program\n", 18 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5788] <... write resumed>) = 18 [pid 5787] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5790 attached ./strace-static-x86_64: Process 5789 attached [pid 5788] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5789] set_robust_list(0x555568f86660, 24 [pid 5790] set_robust_list(0x555568f86660, 24 [pid 5789] <... set_robust_list resumed>) = 0 [pid 5790] <... set_robust_list resumed>) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5791 attached [pid 5790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5789] <... prctl resumed>) = 0 [pid 5788] <... bpf resumed>) = 3 [pid 5787] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5790 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5789 [pid 5791] set_robust_list(0x555568f86660, 24 [pid 5790] <... prctl resumed>) = 0 [pid 5789] setpgid(0, 0 [pid 5788] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5791 [pid 5791] <... set_robust_list resumed>) = 0 [pid 5790] setpgid(0, 0 [pid 5789] <... setpgid resumed>) = 0 [pid 5788] <... bpf resumed>) = 4 [pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5790] <... setpgid resumed>) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5787] <... bpf resumed>) = 5 [pid 5791] <... prctl resumed>) = 0 [pid 5790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5791] setpgid(0, 0) = 0 [pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5790] <... openat resumed>) = 3 [pid 5789] <... openat resumed>) = 3 [pid 5787] exit_group(0 [pid 5788] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16) = 5 [pid 5790] write(3, "1000", 4 [pid 5791] <... openat resumed>) = 3 [pid 5789] write(3, "1000", 4 [pid 5787] <... exit_group resumed>) = ? [pid 5791] write(3, "1000", 4 [pid 5790] <... write resumed>) = 4 [pid 5789] <... write resumed>) = 4 [pid 5791] <... write resumed>) = 4 [pid 5791] close(3 [pid 5788] exit_group(0executing program [pid 5791] <... close resumed>) = 0 [pid 5790] close(3 [pid 5789] close(3 [pid 5788] <... exit_group resumed>) = ? [pid 5791] write(1, "executing program\n", 18executing program ) = 18 [pid 5790] <... close resumed>) = 0 [pid 5789] <... close resumed>) = 0 [pid 5790] write(1, "executing program\n", 18 executing program [pid 5789] write(1, "executing program\n", 18 [pid 5791] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5790] <... write resumed>) = 18 [pid 5789] <... write resumed>) = 18 [pid 5791] <... bpf resumed>) = 3 [pid 5790] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5789] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5791] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5790] <... bpf resumed>) = 3 [pid 5789] <... bpf resumed>) = 3 [pid 5790] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5789] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5790] <... bpf resumed>) = 4 [pid 5789] <... bpf resumed>) = 4 [pid 5791] <... bpf resumed>) = 4 [pid 5790] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5789] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5791] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5787] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5788] +++ exited with 0 +++ [pid 5233] <... restart_syscall resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5792 attached [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5792 ./strace-static-x86_64: Process 5793 attached [pid 5792] set_robust_list(0x555568f86660, 24 [pid 5793] set_robust_list(0x555568f86660, 24 [pid 5792] <... set_robust_list resumed>) = 0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5793 [pid 5793] <... set_robust_list resumed>) = 0 [pid 5792] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5791] <... bpf resumed>) = 5 [pid 5790] <... bpf resumed>) = 5 [pid 5789] <... bpf resumed>) = 5 [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5792] <... prctl resumed>) = 0 [pid 5791] exit_group(0 [pid 5790] exit_group(0 [pid 5789] exit_group(0 [pid 5790] <... exit_group resumed>) = ? [pid 5789] <... exit_group resumed>) = ? [pid 5793] <... prctl resumed>) = 0 [pid 5792] setpgid(0, 0 [pid 5791] <... exit_group resumed>) = ? [pid 5790] +++ exited with 0 +++ [pid 5793] setpgid(0, 0 [pid 5792] <... setpgid resumed>) = 0 [pid 5793] <... setpgid resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5790, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5793] <... openat resumed>) = 3 [pid 5793] write(3, "1000", 4) = 4 [pid 5793] close(3executing program ) = 0 [pid 5793] write(1, "executing program\n", 18) = 18 [pid 5793] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5792] <... openat resumed>) = 3 [pid 5791] +++ exited with 0 +++ [pid 5789] +++ exited with 0 +++ [pid 5793] <... bpf resumed>) = 3 [pid 5792] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5792] <... write resumed>) = 4 [pid 5793] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5792] close(3) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5793] <... bpf resumed>) = 4 [pid 5792] write(1, "executing program\n", 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5794 attached [pid 5792] <... write resumed>) = 18 [pid 5794] set_robust_list(0x555568f86660, 24 [pid 5792] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5794 ./strace-static-x86_64: Process 5795 attached [pid 5794] <... set_robust_list resumed>) = 0 [pid 5794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5792] <... bpf resumed>) = 3 [pid 5795] set_robust_list(0x555568f86660, 24 [pid 5794] <... prctl resumed>) = 0 [pid 5795] <... set_robust_list resumed>) = 0 [pid 5794] setpgid(0, 0 [pid 5793] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5792] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5796 attached [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5794] <... setpgid resumed>) = 0 [pid 5792] <... bpf resumed>) = 4 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5795 [pid 5795] <... prctl resumed>) = 0 [pid 5792] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5796] set_robust_list(0x555568f86660, 24 [pid 5795] setpgid(0, 0 [pid 5794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5796 [pid 5795] <... setpgid resumed>) = 0 [pid 5796] <... set_robust_list resumed>) = 0 [pid 5796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5796] <... prctl resumed>) = 0 [pid 5796] setpgid(0, 0) = 0 [pid 5795] <... openat resumed>) = 3 [pid 5794] <... openat resumed>) = 3 [pid 5793] <... bpf resumed>) = 5 [pid 5792] <... bpf resumed>) = 5 [pid 5796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5795] write(3, "1000", 4 [pid 5794] write(3, "1000", 4 [pid 5792] exit_group(0 [pid 5795] <... write resumed>) = 4 [pid 5794] <... write resumed>) = 4 [pid 5793] exit_group(0 [pid 5795] close(3 [pid 5794] close(3 [pid 5793] <... exit_group resumed>) = ? [pid 5792] <... exit_group resumed>) = ? [pid 5796] <... openat resumed>) = 3 [pid 5795] <... close resumed>) = 0 [pid 5794] <... close resumed>) = 0 [pid 5796] write(3, "1000", 4executing program [pid 5795] write(1, "executing program\n", 18 [pid 5796] <... write resumed>) = 4 [pid 5795] <... write resumed>) = 18 executing program [pid 5794] write(1, "executing program\n", 18 [pid 5796] close(3 [pid 5795] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5796] <... close resumed>) = 0 [pid 5794] <... write resumed>) = 18 [pid 5796] write(1, "executing program\n", 18executing program [pid 5795] <... bpf resumed>) = 3 [pid 5796] <... write resumed>) = 18 [pid 5794] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5796] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5795] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5796] <... bpf resumed>) = 3 [pid 5795] <... bpf resumed>) = 4 [pid 5794] <... bpf resumed>) = 3 [pid 5796] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5794] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5796] <... bpf resumed>) = 4 [pid 5795] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5794] <... bpf resumed>) = 4 [pid 5796] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5794] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5793] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5793, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5792] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5792, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5797 attached [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5797 ./strace-static-x86_64: Process 5798 attached [pid 5797] set_robust_list(0x555568f86660, 24 [pid 5798] set_robust_list(0x555568f86660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5798 [pid 5798] <... set_robust_list resumed>) = 0 [pid 5798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5797] <... set_robust_list resumed>) = 0 [pid 5796] <... bpf resumed>) = 5 [pid 5795] <... bpf resumed>) = 5 [pid 5794] <... bpf resumed>) = 5 [pid 5795] exit_group(0 [pid 5794] exit_group(0 [pid 5798] setpgid(0, 0 [pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5796] exit_group(0 [pid 5795] <... exit_group resumed>) = ? [pid 5794] <... exit_group resumed>) = ? [pid 5798] <... setpgid resumed>) = 0 [pid 5798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5797] setpgid(0, 0 [pid 5796] <... exit_group resumed>) = ? [pid 5798] <... openat resumed>) = 3 [pid 5797] <... setpgid resumed>) = 0 [pid 5795] +++ exited with 0 +++ [pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5798] write(3, "1000", 4 [pid 5797] <... openat resumed>) = 3 [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5798] <... write resumed>) = 4 executing program [pid 5798] close(3) = 0 [pid 5798] write(1, "executing program\n", 18 [pid 5797] write(3, "1000", 4 [pid 5798] <... write resumed>) = 18 [pid 5797] <... write resumed>) = 4 [pid 5798] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5798] <... bpf resumed>) = 3 [pid 5797] close(3) = 0 [pid 5798] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5797] write(1, "executing program\n", 18 [pid 5798] <... bpf resumed>) = 4 [pid 5797] <... write resumed>) = 18 [pid 5798] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5797] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5797] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5797] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5796] +++ exited with 0 +++ [pid 5794] +++ exited with 0 +++ [pid 5230] <... restart_syscall resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5796, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5799 attached [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5799 ./strace-static-x86_64: Process 5800 attached [pid 5799] set_robust_list(0x555568f86660, 24 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5800] set_robust_list(0x555568f86660, 24) = 0 [pid 5800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5799] <... set_robust_list resumed>) = 0 [pid 5798] <... bpf resumed>) = 5 [pid 5797] <... bpf resumed>) = 5 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5800 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5800] <... prctl resumed>) = 0 [pid 5799] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5797] exit_group(0 [pid 5799] <... prctl resumed>) = 0 [pid 5799] setpgid(0, 0 [pid 5797] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5801 attached [pid 5800] setpgid(0, 0 [pid 5799] <... setpgid resumed>) = 0 [pid 5798] exit_group(0 [pid 5797] +++ exited with 0 +++ [pid 5801] set_robust_list(0x555568f86660, 24 [pid 5800] <... setpgid resumed>) = 0 [pid 5798] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5801 [pid 5801] <... set_robust_list resumed>) = 0 [pid 5800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5799] <... openat resumed>) = 3 [pid 5799] write(3, "1000", 4 [pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5800] <... openat resumed>) = 3 [pid 5798] +++ exited with 0 +++ [pid 5233] <... restart_syscall resumed>) = 0 [pid 5801] <... prctl resumed>) = 0 [pid 5800] write(3, "1000", 4 [pid 5799] <... write resumed>) = 4 [pid 5801] setpgid(0, 0 [pid 5800] <... write resumed>) = 4 [pid 5799] close(3 [pid 5801] <... setpgid resumed>) = 0 [pid 5800] close(3 [pid 5799] <... close resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5798, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5800] <... close resumed>) = 0 [pid 5799] write(1, "executing program\n", 18 [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5801] write(3, "1000", 4./strace-static-x86_64: Process 5802 attached [pid 5800] write(1, "executing program\n", 18 [pid 5799] <... write resumed>) = 18 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5801] <... write resumed>) = 4 executing program [pid 5801] close(3) = 0 [pid 5801] write(1, "executing program\n", 18 [pid 5802] set_robust_list(0x555568f86660, 24 [pid 5800] <... write resumed>) = 18 executing program [pid 5799] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5802 [pid 5802] <... set_robust_list resumed>) = 0 [pid 5801] <... write resumed>) = 18 [pid 5800] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5799] <... bpf resumed>) = 3 [pid 5802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5801] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5802] <... prctl resumed>) = 0 [pid 5800] <... bpf resumed>) = 3 [pid 5799] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5802] setpgid(0, 0 [pid 5801] <... bpf resumed>) = 3 [pid 5800] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5802] <... setpgid resumed>) = 0 [pid 5802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5800] <... bpf resumed>) = 4 [pid 5801] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5799] <... bpf resumed>) = 4 [pid 5799] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16./strace-static-x86_64: Process 5803 attached [pid 5802] <... openat resumed>) = 3 [pid 5801] <... bpf resumed>) = 4 [pid 5800] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5803] set_robust_list(0x555568f86660, 24 [pid 5802] write(3, "1000", 4 [pid 5801] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5799] <... bpf resumed>) = 5 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5803 [pid 5803] <... set_robust_list resumed>) = 0 [pid 5802] <... write resumed>) = 4 [pid 5801] <... bpf resumed>) = 5 [pid 5800] <... bpf resumed>) = 5 [pid 5803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5802] close(3 [pid 5803] <... prctl resumed>) = 0 [pid 5802] <... close resumed>) = 0 [pid 5803] setpgid(0, 0executing program [pid 5802] write(1, "executing program\n", 18 [pid 5801] exit_group(0 [pid 5800] exit_group(0 [pid 5799] exit_group(0 [pid 5803] <... setpgid resumed>) = 0 [pid 5801] <... exit_group resumed>) = ? [pid 5800] <... exit_group resumed>) = ? [pid 5799] <... exit_group resumed>) = ? [pid 5803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5802] <... write resumed>) = 18 [pid 5803] <... openat resumed>) = 3 [pid 5802] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5803] write(3, "1000", 4 [pid 5802] <... bpf resumed>) = 3 [pid 5800] +++ exited with 0 +++ [pid 5803] <... write resumed>) = 4 [pid 5802] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5803] close(3) = 0 [pid 5236] restart_syscall(<... resuming interrupted clone ...> executing program [pid 5803] write(1, "executing program\n", 18 [pid 5802] <... bpf resumed>) = 4 [pid 5803] <... write resumed>) = 18 [pid 5803] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5802] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5799] +++ exited with 0 +++ [pid 5801] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5799, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5803] <... bpf resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5801, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5803] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5803] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5236] <... restart_syscall resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5804 attached [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5804 ./strace-static-x86_64: Process 5806 attached ./strace-static-x86_64: Process 5805 attached [pid 5804] set_robust_list(0x555568f86660, 24 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5806 [pid 5806] set_robust_list(0x555568f86660, 24 [pid 5805] set_robust_list(0x555568f86660, 24 [pid 5804] <... set_robust_list resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5805 [pid 5806] <... set_robust_list resumed>) = 0 [pid 5806] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5806] <... prctl resumed>) = 0 [pid 5805] <... set_robust_list resumed>) = 0 [pid 5804] <... prctl resumed>) = 0 [pid 5806] setpgid(0, 0) = 0 [pid 5805] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5804] setpgid(0, 0 [pid 5803] <... bpf resumed>) = 5 [pid 5802] <... bpf resumed>) = 5 [pid 5806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5805] <... prctl resumed>) = 0 [pid 5804] <... setpgid resumed>) = 0 [pid 5805] setpgid(0, 0 [pid 5804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5805] <... setpgid resumed>) = 0 [pid 5805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5804] <... openat resumed>) = 3 [pid 5805] <... openat resumed>) = 3 [pid 5803] exit_group(0 [pid 5806] <... openat resumed>) = 3 executing program [pid 5804] write(3, "1000", 4 [pid 5803] <... exit_group resumed>) = ? [pid 5802] exit_group(0 [pid 5806] write(3, "1000", 4) = 4 [pid 5806] close(3) = 0 [pid 5806] write(1, "executing program\n", 18) = 18 [pid 5805] write(3, "1000", 4 [pid 5804] <... write resumed>) = 4 [pid 5802] <... exit_group resumed>) = ? [pid 5806] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5805] <... write resumed>) = 4 [pid 5804] close(3 [pid 5805] close(3 [pid 5804] <... close resumed>) = 0 [pid 5805] <... close resumed>) = 0 [pid 5804] write(1, "executing program\n", 18executing program [pid 5806] <... bpf resumed>) = 3 [pid 5804] <... write resumed>) = 18 [pid 5804] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5806] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5805] write(1, "executing program\n", 18 [pid 5804] <... bpf resumed>) = 3 executing program [pid 5805] <... write resumed>) = 18 [pid 5806] <... bpf resumed>) = 4 [pid 5805] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5804] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5806] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5805] <... bpf resumed>) = 3 [pid 5805] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5804] <... bpf resumed>) = 4 [pid 5804] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5805] <... bpf resumed>) = 4 [pid 5805] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5803] +++ exited with 0 +++ [pid 5802] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5803, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] restart_syscall(<... resuming interrupted clone ...> [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5807 attached , child_tidptr=0x555568f86650) = 5807 [pid 5807] set_robust_list(0x555568f86660, 24) = 0 [pid 5807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5807] setpgid(0, 0) = 0 [pid 5807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5807] write(3, "1000", 4) = 4 [pid 5807] close(3) = 0 [pid 5807] write(1, "executing program\n", 18executing program ) = 18 [pid 5807] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5807] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5806] <... bpf resumed>) = 5 [pid 5804] <... bpf resumed>) = 5 [pid 5806] exit_group(0 [pid 5805] <... bpf resumed>) = 5 [pid 5805] exit_group(0 [pid 5807] <... bpf resumed>) = 4 [pid 5806] <... exit_group resumed>) = ? [pid 5804] exit_group(0 [pid 5228] <... restart_syscall resumed>) = 0 [pid 5807] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5805] <... exit_group resumed>) = ? [pid 5804] <... exit_group resumed>) = ? [pid 5807] <... bpf resumed>) = 5 [pid 5805] +++ exited with 0 +++ [pid 5804] +++ exited with 0 +++ [pid 5807] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5804, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5807] <... exit_group resumed>) = ? [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5805, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5808 attached [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5808] set_robust_list(0x555568f86660, 24./strace-static-x86_64: Process 5809 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5808 [pid 5809] set_robust_list(0x555568f86660, 24 [pid 5808] <... set_robust_list resumed>) = 0 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5809 [pid 5809] <... set_robust_list resumed>) = 0 [pid 5808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5808] <... prctl resumed>) = 0 [pid 5809] setpgid(0, 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5808] setpgid(0, 0) = 0 [pid 5808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5810 attached [pid 5809] <... setpgid resumed>) = 0 [pid 5807] +++ exited with 0 +++ [pid 5806] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5807, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5810] set_robust_list(0x555568f86660, 24 [pid 5808] write(3, "1000", 4 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5810 [pid 5810] <... set_robust_list resumed>) = 0 [pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5808] <... write resumed>) = 4 [pid 5810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5808] close(3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5810] <... prctl resumed>) = 0 [pid 5809] <... openat resumed>) = 3 [pid 5808] <... close resumed>) = 0 ./strace-static-x86_64: Process 5811 attached [pid 5809] write(3, "1000", 4 [pid 5810] setpgid(0, 0 [pid 5808] write(1, "executing program\n", 18executing program [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5810] <... setpgid resumed>) = 0 [pid 5809] <... write resumed>) = 4 [pid 5808] <... write resumed>) = 18 [pid 5811] set_robust_list(0x555568f86660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5811 [pid 5811] <... set_robust_list resumed>) = 0 [pid 5808] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5809] close(3 [pid 5811] <... prctl resumed>) = 0 [pid 5811] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5812 attached [pid 5810] <... openat resumed>) = 3 [pid 5809] <... close resumed>) = 0 [pid 5808] <... bpf resumed>) = 3 [pid 5810] write(3, "1000", 4 [pid 5809] write(1, "executing program\n", 18executing program [pid 5812] set_robust_list(0x555568f86660, 24 [pid 5811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5810] <... write resumed>) = 4 [pid 5812] <... set_robust_list resumed>) = 0 [pid 5809] <... write resumed>) = 18 [pid 5808] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5810] close(3 [pid 5809] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5812 [pid 5812] <... prctl resumed>) = 0 [pid 5810] <... close resumed>) = 0 [pid 5812] setpgid(0, 0) = 0 [pid 5812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5811] <... openat resumed>) = 3 executing program [pid 5810] write(1, "executing program\n", 18 [pid 5812] <... openat resumed>) = 3 [pid 5812] write(3, "1000", 4) = 4 [pid 5812] close(3) = 0 executing program [pid 5811] write(3, "1000", 4 [pid 5810] <... write resumed>) = 18 [pid 5809] <... bpf resumed>) = 3 [pid 5808] <... bpf resumed>) = 4 [pid 5812] write(1, "executing program\n", 18 [pid 5811] <... write resumed>) = 4 [pid 5810] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5809] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5808] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5812] <... write resumed>) = 18 [pid 5811] close(3 [pid 5808] <... bpf resumed>) = 5 [pid 5812] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_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 5811] <... close resumed>) = 0 [pid 5810] <... bpf resumed>) = 3 [pid 5812] <... bpf resumed>) = 3 [pid 5811] write(1, "executing program\n", 18 [pid 5808] exit_group(0 [pid 5812] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5811] <... write resumed>) = 18 [pid 5811] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5810] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5809] <... bpf resumed>) = 4 [pid 5808] <... exit_group resumed>) = ? [pid 5812] <... bpf resumed>) = 4 [pid 5811] <... bpf resumed>) = 3 [pid 5810] <... bpf resumed>) = 4 [pid 5809] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5810] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5809] <... bpf resumed>) = 5 [pid 5809] exit_group(0 [pid 5812] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5811] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5810] <... bpf resumed>) = 5 [pid 5808] +++ exited with 0 +++ [pid 5812] <... bpf resumed>) = 5 [pid 5809] <... exit_group resumed>) = ? [pid 5812] exit_group(0 [pid 5811] <... bpf resumed>) = 4 [pid 5810] exit_group(0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5808, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5812] <... exit_group resumed>) = ? [pid 5811] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5810] <... exit_group resumed>) = ? [pid 5809] +++ exited with 0 +++ [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5811] <... bpf resumed>) = 5 [pid 5810] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5810, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5811] exit_group(0) = ? ./strace-static-x86_64: Process 5813 attached [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5813 [pid 5813] set_robust_list(0x555568f86660, 24 [pid 5812] +++ exited with 0 +++ [pid 5811] +++ exited with 0 +++ [pid 5813] <... set_robust_list resumed>) = 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5812, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5811, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5813] setpgid(0, 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5815 attached ./strace-static-x86_64: Process 5814 attached [pid 5813] <... setpgid resumed>) = 0 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5815] set_robust_list(0x555568f86660, 24 [pid 5814] set_robust_list(0x555568f86660, 24 [pid 5813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5815 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5814 [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5816 ./strace-static-x86_64: Process 5817 attached ./strace-static-x86_64: Process 5816 attached [pid 5815] <... set_robust_list resumed>) = 0 [pid 5814] <... set_robust_list resumed>) = 0 [pid 5813] <... openat resumed>) = 3 [pid 5817] set_robust_list(0x555568f86660, 24 [pid 5816] set_robust_list(0x555568f86660, 24 [pid 5815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5817] <... set_robust_list resumed>) = 0 [pid 5816] <... set_robust_list resumed>) = 0 [pid 5815] <... prctl resumed>) = 0 [pid 5817] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5816] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5815] setpgid(0, 0 [pid 5816] <... prctl resumed>) = 0 [pid 5817] <... prctl resumed>) = 0 [pid 5815] <... setpgid resumed>) = 0 [pid 5814] <... prctl resumed>) = 0 [pid 5813] write(3, "1000", 4 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5817 [pid 5817] setpgid(0, 0 [pid 5816] setpgid(0, 0 [pid 5815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5814] setpgid(0, 0 [pid 5813] <... write resumed>) = 4 [pid 5814] <... setpgid resumed>) = 0 [pid 5817] <... setpgid resumed>) = 0 [pid 5816] <... setpgid resumed>) = 0 [pid 5814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5813] close(3 [pid 5815] <... openat resumed>) = 3 [pid 5817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5815] write(3, "1000", 4 [pid 5814] <... openat resumed>) = 3 [pid 5816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5815] <... write resumed>) = 4 [pid 5813] <... close resumed>) = 0 [pid 5815] close(3executing program executing program [pid 5813] write(1, "executing program\n", 18 [pid 5817] <... openat resumed>) = 3 [pid 5815] <... close resumed>) = 0 [pid 5813] <... write resumed>) = 18 [pid 5815] write(1, "executing program\n", 18) = 18 [pid 5814] write(3, "1000", 4) = 4 [pid 5815] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5814] close(3 [pid 5817] write(3, "1000", 4 [pid 5816] <... openat resumed>) = 3 [pid 5814] <... close resumed>) = 0 [pid 5813] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5817] <... write resumed>) = 4 [pid 5816] write(3, "1000", 4executing program [pid 5815] <... bpf resumed>) = 3 [pid 5814] write(1, "executing program\n", 18) = 18 [pid 5817] close(3 [pid 5816] <... write resumed>) = 4 [pid 5815] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5813] <... bpf resumed>) = 3 [pid 5817] <... close resumed>) = 0 [pid 5816] close(3 executing program [pid 5814] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5817] write(1, "executing program\n", 18 [pid 5816] <... close resumed>) = 0 [pid 5813] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=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 5817] <... write resumed>) = 18 [pid 5816] write(1, "executing program\n", 18 [pid 5815] <... bpf resumed>) = 4 [pid 5814] <... bpf resumed>) = 3 [pid 5813] <... bpf resumed>) = 4 [pid 5816] <... write resumed>) = 18 [pid 5817] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5813] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5817] <... bpf resumed>) = 3 [pid 5816] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5815] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5814] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5817] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5816] <... bpf resumed>) = 3 [pid 5815] <... bpf resumed>) = 5 [pid 5814] <... bpf resumed>) = 4 [pid 5813] <... bpf resumed>) = 5 [pid 5817] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5813] exit_group(0 [pid 5816] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5813] <... exit_group resumed>) = ? [pid 5814] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5817] <... bpf resumed>) = 5 [pid 5814] <... bpf resumed>) = 5 [pid 5814] exit_group(0) = ? [pid 5817] exit_group(0 [pid 5816] <... bpf resumed>) = 4 [pid 5815] exit_group(0 [pid 5813] +++ exited with 0 +++ [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5813, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5817] <... exit_group resumed>) = ? [pid 5816] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5815] <... exit_group resumed>) = ? [pid 5814] +++ exited with 0 +++ [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5818 attached [pid 5817] +++ exited with 0 +++ [pid 5816] <... bpf resumed>) = 5 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5817, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5818] set_robust_list(0x555568f86660, 24 [pid 5816] exit_group(0 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5818 ./strace-static-x86_64: Process 5819 attached [pid 5818] <... set_robust_list resumed>) = 0 [pid 5816] <... exit_group resumed>) = ? [pid 5819] set_robust_list(0x555568f86660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5819 [pid 5819] <... set_robust_list resumed>) = 0 [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5819] setpgid(0, 0) = 0 [pid 5818] <... prctl resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5818] setpgid(0, 0 [pid 5815] +++ exited with 0 +++ [pid 5818] <... setpgid resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5815, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5816] +++ exited with 0 +++ [pid 5819] <... openat resumed>) = 3 [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5816, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5819] write(3, "1000", 4 [pid 5818] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5820 attached [pid 5819] <... write resumed>) = 4 [pid 5818] write(3, "1000", 4 [pid 5820] set_robust_list(0x555568f86660, 24 [pid 5819] close(3 [pid 5818] <... write resumed>) = 4 [pid 5820] <... set_robust_list resumed>) = 0 [pid 5819] <... close resumed>) = 0 executing program [pid 5818] close(3 [pid 5820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5819] write(1, "executing program\n", 18 [pid 5818] <... close resumed>) = 0 [pid 5819] <... write resumed>) = 18 executing program [pid 5819] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5818] write(1, "executing program\n", 18 [pid 5820] <... prctl resumed>) = 0 [pid 5819] <... bpf resumed>) = 3 [pid 5818] <... write resumed>) = 18 [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5820 [pid 5820] setpgid(0, 0 [pid 5819] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5818] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5820] <... setpgid resumed>) = 0 [pid 5820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5820] <... openat resumed>) = 3 [pid 5819] <... bpf resumed>) = 4 [pid 5818] <... bpf resumed>) = 3 [pid 5820] write(3, "1000", 4) = 4 [pid 5820] close(3executing program ) = 0 [pid 5820] write(1, "executing program\n", 18) = 18 [pid 5820] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5818] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, 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 5821 attached [pid 5820] <... bpf resumed>) = 3 [pid 5819] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5233] <... clone resumed>, child_tidptr=0x555568f86650) = 5821 [pid 5821] set_robust_list(0x555568f86660, 24) = 0 [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5821] setpgid(0, 0) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5818] <... bpf resumed>) = 4 [pid 5821] <... openat resumed>) = 3 [pid 5820] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5819] <... bpf resumed>) = 5 [pid 5818] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5821] write(3, "1000", 4 [pid 5819] exit_group(0 [pid 5818] <... bpf resumed>) = 5 [pid 5820] <... bpf resumed>) = 4 [pid 5819] <... exit_group resumed>) = ? [pid 5821] <... write resumed>) = 4 [pid 5820] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5818] exit_group(0 [pid 5821] close(3 [pid 5820] <... bpf resumed>) = 5 [pid 5818] <... exit_group resumed>) = ? [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5821] <... close resumed>) = 0 [pid 5821] write(1, "executing program\n", 18executing program [pid 5820] exit_group(0 [pid 5819] +++ exited with 0 +++ ./strace-static-x86_64: Process 5822 attached [pid 5821] <... write resumed>) = 18 [pid 5821] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=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 5821] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5822] set_robust_list(0x555568f86660, 24 [pid 5820] <... exit_group resumed>) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5819, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] <... clone resumed>, child_tidptr=0x555568f86650) = 5822 [pid 5822] <... set_robust_list resumed>) = 0 [pid 5821] <... bpf resumed>) = 4 [pid 5822] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5821] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5822] <... prctl resumed>) = 0 [pid 5820] +++ exited with 0 +++ [pid 5818] +++ exited with 0 +++ [pid 5232] <... restart_syscall resumed>) = 0 [pid 5822] setpgid(0, 0 [pid 5236] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5822] <... setpgid resumed>) = 0 [pid 5228] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5818, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5822] <... openat resumed>) = 3 [pid 5228] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5823 attached [pid 5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] <... clone resumed>, child_tidptr=0x555568f86650) = 5823 [pid 5823] set_robust_list(0x555568f86660, 24 [pid 5822] write(3, "1000", 4./strace-static-x86_64: Process 5824 attached ) = 4 [pid 5823] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5825 attached [pid 5824] set_robust_list(0x555568f86660, 24 [pid 5822] close(3 [pid 5228] <... clone resumed>, child_tidptr=0x555568f86650) = 5825 [pid 5825] set_robust_list(0x555568f86660, 24 [pid 5824] <... set_robust_list resumed>) = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5822] <... close resumed>) = 0 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5822] write(1, "executing program\n", 18executing program [pid 5823] <... prctl resumed>) = 0 [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5822] <... write resumed>) = 18 [pid 5823] setpgid(0, 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] <... clone resumed>, child_tidptr=0x555568f86650) = 5824 [pid 5825] <... prctl resumed>) = 0 [pid 5825] setpgid(0, 0) = 0 [pid 5824] <... prctl resumed>) = 0 [pid 5823] <... setpgid resumed>) = 0 [pid 5822] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5824] setpgid(0, 0 [pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5825] <... openat resumed>) = 3 [pid 5824] <... setpgid resumed>) = 0 [pid 5822] <... bpf resumed>) = 3 [pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5823] <... openat resumed>) = 3 [pid 5822] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5825] write(3, "1000", 4 [pid 5823] write(3, "1000", 4 [pid 5824] <... openat resumed>) = 3 [pid 5824] write(3, "1000", 4) = 4 [pid 5824] close(3 [pid 5825] <... write resumed>) = 4 [pid 5823] <... write resumed>) = 4 [pid 5822] <... bpf resumed>) = 4 [pid 5824] <... close resumed>) = 0 [pid 5822] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16executing program [pid 5824] write(1, "executing program\n", 18) = 18 [pid 5824] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5825] close(3 [pid 5823] close(3 [pid 5825] <... close resumed>) = 0 [pid 5823] <... close resumed>) = 0 [pid 5825] write(1, "executing program\n", 18executing program executing program ) = 18 [pid 5824] <... bpf resumed>) = 3 [pid 5823] write(1, "executing program\n", 18 [pid 5822] <... bpf resumed>) = 5 [pid 5821] <... bpf resumed>) = 5 [pid 5825] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5824] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5823] <... write resumed>) = 18 [pid 5825] <... bpf resumed>) = 3 [pid 5822] exit_group(0 [pid 5821] exit_group(0 [pid 5823] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LRU_PERCPU_HASH, key_size=4, value_size=8, max_entries=12, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5825] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5824] <... bpf resumed>) = 4 [pid 5823] <... bpf resumed>) = 3 [pid 5822] <... exit_group resumed>) = ? [pid 5821] <... exit_group resumed>) = ? [pid 5825] <... bpf resumed>) = 4 [pid 5824] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5823] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000280, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5822] +++ exited with 0 +++ [pid 5825] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5821] +++ exited with 0 +++ [pid 5230] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5822, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5230] restart_syscall(<... resuming interrupted clone ...> [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5821, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5823] <... bpf resumed>) = 4 [pid 5823] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_begin", prog_fd=4}}, 16 [pid 5230] <... restart_syscall resumed>) = 0 [pid 5230] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5826 attached , child_tidptr=0x555568f86650) = 5826 [pid 5826] set_robust_list(0x555568f86660, 24) = 0 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] setpgid(0, 0) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... restart_syscall resumed>) = 0