./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3305479007 <...> Warning: Permanently added '10.128.1.7' (ECDSA) to the list of known hosts. execve("./syz-executor3305479007", ["./syz-executor3305479007"], 0x7ffda60988a0 /* 10 vars */) = 0 brk(NULL) = 0x555556e21000 brk(0x555556e21c40) = 0x555556e21c40 arch_prctl(ARCH_SET_FS, 0x555556e21300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3305479007", 4096) = 28 brk(0x555556e42c40) = 0x555556e42c40 brk(0x555556e43000) = 0x555556e43000 mprotect(0x7f09a3455000, 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 5082 attached , child_tidptr=0x555556e215d0) = 5082 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e215d0) = 5083 ./strace-static-x86_64: Process 5084 attached ./strace-static-x86_64: Process 5083 attached [pid 5081] <... clone resumed>, child_tidptr=0x555556e215d0) = 5084 [pid 5084] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5084] <... clone resumed>, child_tidptr=0x555556e215d0) = 5085 ./strace-static-x86_64: Process 5085 attached [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5085] setpgid(0, 0) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] <... prctl resumed>) = 0 [pid 5083] setpgid(0, 0) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5085] write(3, "1000", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5085] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5085] creat("./bus", 011 [pid 5081] <... clone resumed>, child_tidptr=0x555556e215d0) = 5086 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5086 attached [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] <... openat resumed>) = 3 [pid 5086] <... clone resumed>, child_tidptr=0x555556e215d0) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] <... creat resumed>) = 3 [pid 5087] <... prctl resumed>) = 0 [pid 5087] setpgid(0, 0) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5087] write(3, "1000", 4) = 4 [pid 5087] close(3) = 0 [pid 5087] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5087] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5087] creat("./bus", 011 [pid 5085] ftruncate(3, 2048 [pid 5081] <... clone resumed>, child_tidptr=0x555556e215d0) = 5088 [pid 5083] write(3, "1000", 4./strace-static-x86_64: Process 5088 attached [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5085] <... ftruncate resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5083] close(3 [pid 5087] <... creat resumed>) = 3 [pid 5083] <... close resumed>) = 0 [pid 5085] lseek(3, 512, SEEK_END [pid 5083] write(-1, NULL, 0 [pid 5085] <... lseek resumed>) = 512 [pid 5083] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5087] ftruncate(3, 2048 [pid 5083] setrlimit(RLIMIT_STACK, NULL [pid 5081] <... clone resumed>, child_tidptr=0x555556e215d0) = 5089 [pid 5085] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5087] <... ftruncate resumed>) = 0 [pid 5083] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5087] lseek(3, 512, SEEK_END) = 2560 [pid 5087] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW./strace-static-x86_64: Process 5089 attached [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5085] <... open resumed>) = 4 [pid 5083] creat("./bus", 011 [pid 5085] sendfile(3, 4, NULL, 122112 [pid 5083] <... creat resumed>) = 3 [pid 5081] <... clone resumed>, child_tidptr=0x555556e215d0) = 5090 [pid 5088] <... clone resumed>, child_tidptr=0x555556e215d0) = 5091 [pid 5085] <... sendfile resumed>) = 0 [pid 5083] ftruncate(3, 2048 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5085] exit_group(0 [pid 5083] <... ftruncate resumed>) = 0 [pid 5085] <... exit_group resumed>) = ? [pid 5083] lseek(3, 512, SEEK_END [pid 5085] +++ exited with 0 +++ [pid 5083] <... lseek resumed>) = 2560 [pid 5083] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW) = 4 [pid 5089] <... clone resumed>, child_tidptr=0x555556e215d0) = 5092 [pid 5083] sendfile(3, 4, NULL, 122112./strace-static-x86_64: Process 5092 attached ./strace-static-x86_64: Process 5091 attached ./strace-static-x86_64: Process 5090 attached [pid 5084] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... prctl resumed>) = 0 [pid 5091] <... prctl resumed>) = 0 [pid 5092] setpgid(0, 0 [pid 5091] setpgid(0, 0 [pid 5090] <... clone resumed>, child_tidptr=0x555556e215d0) = 5093 [pid 5084] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... setpgid resumed>) = 0 [pid 5091] <... setpgid resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] <... clone resumed>, child_tidptr=0x555556e215d0) = 5094 [pid 5092] <... openat resumed>) = 3 [pid 5091] <... openat resumed>) = 3 [pid 5092] write(3, "1000", 4 [pid 5091] write(3, "1000", 4 [pid 5092] <... write resumed>) = 4 [pid 5091] <... write resumed>) = 4 [pid 5092] close(3 [pid 5091] close(3 [pid 5092] <... close resumed>) = 0 [pid 5091] <... close resumed>) = 0 [pid 5092] write(-1, NULL, 0 [pid 5091] write(-1, NULL, 0 [pid 5092] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5091] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5092] setrlimit(RLIMIT_STACK, NULL [pid 5091] setrlimit(RLIMIT_STACK, NULL [pid 5092] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5091] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5092] creat("./bus", 011 [pid 5091] creat("./bus", 011./strace-static-x86_64: Process 5094 attached [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5094] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5094] creat("./bus", 011./strace-static-x86_64: Process 5093 attached ) = 3 [pid 5092] <... creat resumed>) = 3 [pid 5091] <... creat resumed>) = 3 [pid 5087] <... open resumed>) = 4 syzkaller login: [ 61.589732][ T27] audit: type=1804 audit(1675555051.499:2): pid=5085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=open_writers comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [ 61.612878][ T27] audit: type=1800 audit(1675555051.499:3): pid=5085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor330" name="bus" dev="sda1" ino=1138 res=0 errno=0 [pid 5094] ftruncate(3, 2048 [pid 5092] ftruncate(3, 2048 [pid 5091] ftruncate(3, 2048 [pid 5094] <... ftruncate resumed>) = 0 [pid 5092] <... ftruncate resumed>) = 0 [pid 5091] <... ftruncate resumed>) = 0 [pid 5094] lseek(3, 512, SEEK_END [pid 5092] lseek(3, 512, SEEK_END [pid 5091] lseek(3, 512, SEEK_END [pid 5094] <... lseek resumed>) = 2560 [pid 5092] <... lseek resumed>) = 2560 [pid 5091] <... lseek resumed>) = 2560 [pid 5094] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5092] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5091] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5094] <... open resumed>) = 4 [pid 5092] <... open resumed>) = 4 [pid 5091] <... open resumed>) = 4 [pid 5094] sendfile(3, 4, NULL, 122112 [pid 5092] sendfile(3, 4, NULL, 122112 [pid 5091] sendfile(3, 4, NULL, 122112 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5087] sendfile(3, 4, NULL, 122112 [pid 5093] setpgid(0, 0) = 0 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5093] write(3, "1000", 4) = 4 [pid 5093] close(3) = 0 [pid 5093] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5093] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [ 61.637135][ T27] audit: type=1804 audit(1675555051.499:4): pid=5083 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=ToMToU comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [ 61.659178][ T27] audit: type=1804 audit(1675555051.499:5): pid=5083 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=open_writers comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [pid 5093] creat("./bus", 011) = 3 [ 61.681689][ T27] audit: type=1800 audit(1675555051.499:6): pid=5083 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor330" name="bus" dev="sda1" ino=1138 res=0 errno=0 [ 61.702798][ T27] audit: type=1804 audit(1675555051.549:7): pid=5087 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=open_writers comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [ 61.723882][ T27] audit: type=1800 audit(1675555051.549:8): pid=5087 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor330" name="bus" dev="sda1" ino=1138 res=0 errno=0 [ 61.745670][ T27] audit: type=1804 audit(1675555051.549:9): pid=5092 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=ToMToU comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [ 61.766700][ T27] audit: type=1804 audit(1675555051.549:10): pid=5091 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=ToMToU comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [pid 5093] ftruncate(3, 2048) = 0 [pid 5093] lseek(3, 512, SEEK_END) = 37376 [pid 5093] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW) = 4 [ 61.787905][ T27] audit: type=1804 audit(1675555051.549:11): pid=5094 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=ToMToU comm="syz-executor330" name="/root/bus" dev="sda1" ino=1138 res=1 errno=0 [pid 5093] sendfile(3, 4, NULL, 122112 [pid 5091] <... sendfile resumed>) = 90624 [pid 5091] exit_group(0) = ? [pid 5092] <... sendfile resumed>) = 93184 [pid 5092] exit_group(0) = ? [pid 5091] +++ exited with 0 +++ [pid 5092] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] restart_syscall(<... resuming interrupted clone ...> [pid 5094] <... sendfile resumed>) = 95744 [pid 5088] <... restart_syscall resumed>) = 0 [pid 5094] exit_group(0) = ? [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] +++ exited with 0 +++ ./strace-static-x86_64: Process 5095 attached [pid 5093] <... sendfile resumed>) = 90624 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555556e215d0) = 5095 [pid 5087] <... sendfile resumed>) = 95744 [pid 5084] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5083] <... sendfile resumed>) = 118784 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5093] exit_group(0 [pid 5087] exit_group(0 [pid 5083] exit_group(0 [pid 5095] <... prctl resumed>) = 0 [pid 5093] <... exit_group resumed>) = ? [pid 5087] <... exit_group resumed>) = ? [pid 5083] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5096 attached [pid 5093] +++ exited with 0 +++ [pid 5089] <... clone resumed>, child_tidptr=0x555556e215d0) = 5096 [pid 5087] +++ exited with 0 +++ [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] setpgid(0, 0 [pid 5084] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5083] +++ exited with 0 +++ ./strace-static-x86_64: Process 5097 attached [pid 5096] <... prctl resumed>) = 0 [pid 5095] <... setpgid resumed>) = 0 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5086] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] setpgid(0, 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5090] restart_syscall(<... resuming interrupted clone ...> [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] <... clone resumed>, child_tidptr=0x555556e215d0) = 5097 ./strace-static-x86_64: Process 5098 attached [pid 5097] <... prctl resumed>) = 0 [pid 5096] <... setpgid resumed>) = 0 [pid 5095] <... openat resumed>) = 3 [pid 5090] <... restart_syscall resumed>) = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5097] setpgid(0, 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] write(3, "1000", 4 [pid 5086] <... clone resumed>, child_tidptr=0x555556e215d0) = 5098 [pid 5098] <... prctl resumed>) = 0 [pid 5097] <... setpgid resumed>) = 0 [pid 5096] <... openat resumed>) = 3 [pid 5095] <... write resumed>) = 4 [pid 5098] setpgid(0, 0 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] write(3, "1000", 4 [pid 5095] close(3 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached [pid 5098] <... setpgid resumed>) = 0 [pid 5097] <... openat resumed>) = 3 [pid 5096] <... write resumed>) = 4 [pid 5095] <... close resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5100 attached [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] write(3, "1000", 4 [pid 5096] close(3 [pid 5095] write(-1, NULL, 0 [pid 5090] <... clone resumed>, child_tidptr=0x555556e215d0) = 5099 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] <... prctl resumed>) = 0 [pid 5098] <... openat resumed>) = 3 [pid 5097] <... write resumed>) = 4 [pid 5096] <... close resumed>) = 0 [pid 5095] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5082] <... clone resumed>, child_tidptr=0x555556e215d0) = 5100 [pid 5100] <... prctl resumed>) = 0 [pid 5099] setpgid(0, 0 [pid 5098] write(3, "1000", 4 [pid 5097] close(3 [pid 5096] write(-1, NULL, 0 [pid 5095] setrlimit(RLIMIT_STACK, NULL [pid 5100] setpgid(0, 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5098] <... write resumed>) = 4 [pid 5097] <... close resumed>) = 0 [pid 5096] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5095] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5100] <... setpgid resumed>) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] close(3 [pid 5097] write(-1, NULL, 0 [pid 5096] setrlimit(RLIMIT_STACK, NULL [pid 5095] creat("./bus", 011 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] <... openat resumed>) = 3 [pid 5098] <... close resumed>) = 0 [pid 5097] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5096] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5098] write(-1, NULL, 0 [pid 5097] setrlimit(RLIMIT_STACK, NULL [pid 5096] creat("./bus", 011 [pid 5099] write(3, "1000", 4 [pid 5095] <... creat resumed>) = 3 [pid 5100] <... openat resumed>) = 3 [pid 5099] <... write resumed>) = 4 [pid 5098] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5097] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5096] <... creat resumed>) = 3 [pid 5095] ftruncate(3, 2048 [pid 5100] write(3, "1000", 4 [pid 5099] close(3 [pid 5098] setrlimit(RLIMIT_STACK, NULL [pid 5097] creat("./bus", 011 [pid 5096] ftruncate(3, 2048 [pid 5095] <... ftruncate resumed>) = 0 [pid 5100] <... write resumed>) = 4 [pid 5099] <... close resumed>) = 0 [pid 5098] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5097] <... creat resumed>) = 3 [pid 5096] <... ftruncate resumed>) = 0 [pid 5095] lseek(3, 512, SEEK_END [pid 5100] close(3 [pid 5099] write(-1, NULL, 0 [pid 5098] creat("./bus", 011 [pid 5097] ftruncate(3, 2048 [pid 5096] lseek(3, 512, SEEK_END [pid 5095] <... lseek resumed>) = 2560 [pid 5100] <... close resumed>) = 0 [pid 5099] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5098] <... creat resumed>) = 3 [pid 5097] <... ftruncate resumed>) = 0 [pid 5096] <... lseek resumed>) = 2560 [pid 5095] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5100] write(-1, NULL, 0 [pid 5099] setrlimit(RLIMIT_STACK, NULL [pid 5098] ftruncate(3, 2048 [pid 5097] lseek(3, 512, SEEK_END [pid 5096] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5100] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5099] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5098] <... ftruncate resumed>) = 0 [pid 5097] <... lseek resumed>) = 2560 [pid 5096] <... open resumed>) = 4 [pid 5095] <... open resumed>) = 4 [pid 5100] setrlimit(RLIMIT_STACK, NULL [pid 5099] creat("./bus", 011 [pid 5098] lseek(3, 512, SEEK_END [pid 5097] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5096] sendfile(3, 4, NULL, 122112 [pid 5095] sendfile(3, 4, NULL, 122112 [pid 5100] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5099] <... creat resumed>) = 3 [pid 5098] <... lseek resumed>) = 512 [pid 5097] <... open resumed>) = 4 [pid 5096] <... sendfile resumed>) = 0 [pid 5095] <... sendfile resumed>) = 0 [pid 5100] creat("./bus", 011 [pid 5099] ftruncate(3, 2048 [pid 5098] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5097] sendfile(3, 4, NULL, 122112 [pid 5096] exit_group(0 [pid 5095] exit_group(0 [pid 5100] <... creat resumed>) = 3 [pid 5099] <... ftruncate resumed>) = 0 [pid 5098] <... open resumed>) = 4 [pid 5097] <... sendfile resumed>) = 0 [pid 5096] <... exit_group resumed>) = ? [pid 5095] <... exit_group resumed>) = ? [pid 5100] ftruncate(3, 2048 [pid 5099] lseek(3, 512, SEEK_END [pid 5098] sendfile(3, 4, NULL, 122112 [pid 5097] exit_group(0 [pid 5096] +++ exited with 0 +++ [pid 5100] <... ftruncate resumed>) = 0 [pid 5099] <... lseek resumed>) = 512 [pid 5098] <... sendfile resumed>) = 0 [pid 5097] <... exit_group resumed>) = ? [pid 5095] +++ exited with 0 +++ [pid 5100] lseek(3, 512, SEEK_END [pid 5099] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5098] exit_group(0 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5100] <... lseek resumed>) = 2560 [pid 5099] <... open resumed>) = 4 [pid 5098] <... exit_group resumed>) = ? [pid 5097] +++ exited with 0 +++ [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5100] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5099] sendfile(3, 4, NULL, 122112 [pid 5098] +++ exited with 0 +++ [pid 5089] <... restart_syscall resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5101 attached [pid 5100] <... open resumed>) = 4 [pid 5084] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5100] sendfile(3, 4, NULL, 122112 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] <... clone resumed>, child_tidptr=0x555556e215d0) = 5101 [pid 5084] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached [pid 5101] <... prctl resumed>) = 0 [pid 5101] setpgid(0, 0 [pid 5089] <... clone resumed>, child_tidptr=0x555556e215d0) = 5102 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... setpgid resumed>) = 0 [pid 5102] <... prctl resumed>) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5084] <... clone resumed>, child_tidptr=0x555556e215d0) = 5103 [pid 5102] setpgid(0, 0 [pid 5101] <... openat resumed>) = 3 [pid 5102] <... setpgid resumed>) = 0 [pid 5101] write(3, "1000", 4 [pid 5086] <... clone resumed>, child_tidptr=0x555556e215d0) = 5104 ./strace-static-x86_64: Process 5103 attached [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] <... write resumed>) = 4 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5102] <... openat resumed>) = 3 [pid 5101] close(3 [pid 5103] <... prctl resumed>) = 0 [pid 5102] write(3, "1000", 4 [pid 5101] <... close resumed>) = 0 [pid 5103] setpgid(0, 0 [pid 5102] <... write resumed>) = 4 [pid 5101] write(-1, NULL, 0 [pid 5103] <... setpgid resumed>) = 0 [pid 5102] close(3 [pid 5101] <... write resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5104 attached [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5102] <... close resumed>) = 0 [pid 5101] setrlimit(RLIMIT_STACK, NULL [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5103] <... openat resumed>) = 3 [pid 5102] write(-1, NULL, 0 [pid 5101] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5104] <... prctl resumed>) = 0 [pid 5103] write(3, "1000", 4 [pid 5102] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5101] creat("./bus", 011 [pid 5104] setpgid(0, 0 [pid 5103] <... write resumed>) = 4 [pid 5102] setrlimit(RLIMIT_STACK, NULL [pid 5104] <... setpgid resumed>) = 0 [pid 5103] close(3 [pid 5102] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5103] <... close resumed>) = 0 [pid 5102] creat("", 011 [pid 5104] <... openat resumed>) = 3 [pid 5103] write(-1, NULL, 0 [pid 5102] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5104] write(3, "1000", 4 [pid 5103] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5102] ftruncate(-1, 2048 [pid 5104] <... write resumed>) = 4 [pid 5103] setrlimit(RLIMIT_STACK, NULL [pid 5102] <... ftruncate resumed>) = -1 EBADF (Bad file descriptor) [pid 5104] close(3 [pid 5103] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5102] lseek(-1, 512, SEEK_END [pid 5101] <... creat resumed>) = 3 [pid 5104] <... close resumed>) = 0 [pid 5103] creat("./bus", 011 [pid 5102] <... lseek resumed>) = -1 EBADF (Bad file descriptor) [pid 5101] ftruncate(3, 2048 [pid 5104] write(-1, NULL, 0 [pid 5102] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5104] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5104] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5104] creat("./bus", 011 [pid 5103] <... creat resumed>) = 3 [pid 5101] <... ftruncate resumed>) = 0 [pid 5104] <... creat resumed>) = 3 [pid 5103] ftruncate(3, 2048 [pid 5102] <... open resumed>) = 3 [pid 5101] lseek(3, 512, SEEK_END [pid 5100] <... sendfile resumed>) = 23552 [pid 5099] <... sendfile resumed>) = 26112 [pid 5104] ftruncate(3, 2048 [pid 5103] <... ftruncate resumed>) = 0 [pid 5102] sendfile(-1, 3, NULL, 122112 [pid 5101] <... lseek resumed>) = 2560 [pid 5100] exit_group(0 [pid 5099] exit_group(0 [pid 5104] <... ftruncate resumed>) = 0 [pid 5103] lseek(3, 512, SEEK_END [pid 5102] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 5101] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5100] <... exit_group resumed>) = ? [pid 5099] <... exit_group resumed>) = ? [pid 5104] lseek(3, 512, SEEK_END [pid 5103] <... lseek resumed>) = 2560 [pid 5101] <... open resumed>) = 4 [pid 5104] <... lseek resumed>) = 2560 [pid 5103] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5102] exit_group(0 [pid 5101] sendfile(3, 4, NULL, 122112 [pid 5100] +++ exited with 0 +++ [pid 5104] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5103] <... open resumed>) = 4 [pid 5099] +++ exited with 0 +++ [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5104] <... open resumed>) = 4 [pid 5103] sendfile(3, 4, NULL, 122112 [pid 5102] <... exit_group resumed>) = ? [pid 5104] sendfile(3, 4, NULL, 122112 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5102] +++ exited with 0 +++ [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] <... clone resumed>, child_tidptr=0x555556e215d0) = 5105 [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5082] <... clone resumed>, child_tidptr=0x555556e215d0) = 5106 [pid 5089] <... restart_syscall resumed>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e215d0) = 5107 ./strace-static-x86_64: Process 5106 attached [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5107 attached ./strace-static-x86_64: Process 5105 attached [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5106] write(3, "1000", 4 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5107] <... prctl resumed>) = 0 [pid 5106] <... write resumed>) = 4 [pid 5105] <... prctl resumed>) = 0 [pid 5107] setpgid(0, 0 [pid 5106] close(3 [pid 5105] setpgid(0, 0 [pid 5107] <... setpgid resumed>) = 0 [pid 5106] <... close resumed>) = 0 [pid 5105] <... setpgid resumed>) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5106] write(-1, NULL, 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5107] <... openat resumed>) = 3 [pid 5106] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5107] write(3, "1000", 4 [pid 5106] setrlimit(RLIMIT_STACK, NULL [pid 5105] <... openat resumed>) = 3 [pid 5107] <... write resumed>) = 4 [pid 5106] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5105] write(3, "1000", 4 [pid 5107] close(3 [pid 5106] creat("./bus", 011 [pid 5105] <... write resumed>) = 4 [pid 5107] <... close resumed>) = 0 [pid 5105] close(3 [pid 5107] write(-1, NULL, 0 [pid 5105] <... close resumed>) = 0 [pid 5107] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5105] write(-1, NULL, 0 [pid 5107] setrlimit(RLIMIT_STACK, NULL [pid 5105] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5107] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5105] setrlimit(RLIMIT_STACK, NULL [pid 5107] creat("", 011 [pid 5105] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5107] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5105] creat("./bus", 011 [pid 5107] ftruncate(-1, 2048) = -1 EBADF (Bad file descriptor) [pid 5107] lseek(-1, 512, SEEK_END) = -1 EBADF (Bad file descriptor) [pid 5107] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5106] <... creat resumed>) = 3 [pid 5106] ftruncate(3, 2048 [pid 5105] <... creat resumed>) = 3 [pid 5107] <... open resumed>) = 3 [pid 5105] ftruncate(3, 2048 [pid 5103] <... sendfile resumed>) = 25088 [pid 5107] sendfile(-1, 3, NULL, 122112 [pid 5106] <... ftruncate resumed>) = 0 [ 62.013489][ T5101] BUG: Bad rss-counter state mm:ffff88807d579200 type:MM_ANONPAGES val:1 [ 62.022227][ T5101] BUG: non-zero pgtables_bytes on freeing mm: 8192 [pid 5103] exit_group(0 [pid 5107] <... sendfile resumed>) = -1 EBADF (Bad file descriptor) [pid 5106] lseek(3, 512, SEEK_END [pid 5103] <... exit_group resumed>) = ? [pid 5107] exit_group(0 [pid 5106] <... lseek resumed>) = 43520 [pid 5106] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5107] <... exit_group resumed>) = ? [pid 5107] +++ exited with 0 +++ [pid 5106] <... open resumed>) = 4 [pid 5105] <... ftruncate resumed>) = 0 [pid 5101] <... sendfile resumed>) = 37888 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e215d0) = 5108 [pid 5106] sendfile(3, 4, NULL, 122112 [pid 5105] lseek(3, 512, SEEK_END [pid 5101] exit_group(0./strace-static-x86_64: Process 5108 attached [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5105] <... lseek resumed>) = 48640 [pid 5101] <... exit_group resumed>) = ? [pid 5108] write(3, "1000", 4) = 4 [ 62.078644][ T5103] page:ffffea0001cb35c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72cd7 [ 62.086755][ T5078] BUG: Bad rss-counter state mm:ffff88807d57b600 type:MM_ANONPAGES val:1 [ 62.091606][ T5103] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 62.098250][ T5078] BUG: non-zero pgtables_bytes on freeing mm: 8192 [ 62.106048][ T5103] raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 [pid 5108] close(3) = 0 [pid 5108] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5108] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5105] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5108] creat("./bus", 011 [pid 5101] +++ exited with 0 +++ [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e215d0) = 5109 ./strace-static-x86_64: Process 5109 attached [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5109] setpgid(0, 0) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5109] write(3, "1000", 4) = 4 [pid 5109] close(3) = 0 [pid 5109] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5109] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [ 62.121958][ T5103] raw: 0000000000000000 ffff888072cd2180 00000001ffffffff 0000000000000000 [ 62.131773][ T5103] page dumped because: VM_BUG_ON_PAGE(batch->nr > batch->max) [ 62.141956][ T5103] page_owner tracks the page as allocated [ 62.148714][ T5103] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x400dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), pid 5103, tgid 5103 (syz-executor330), ts 61965218697, free_ts 16179617050 [ 62.167524][ T5103] get_page_from_freelist+0x11bb/0x2d50 [ 62.174072][ T5103] __alloc_pages+0x1cb/0x5c0 [pid 5109] creat("./bus", 011 [pid 5108] <... creat resumed>) = 3 [pid 5105] <... open resumed>) = 4 [pid 5109] <... creat resumed>) = 3 [pid 5108] ftruncate(3, 2048 [pid 5105] sendfile(3, 4, NULL, 122112 [pid 5109] ftruncate(3, 2048 [pid 5108] <... ftruncate resumed>) = 0 [pid 5104] <... sendfile resumed>) = 58368 [pid 5108] lseek(3, 512, SEEK_END) = 99840 [pid 5104] exit_group(0 [pid 5108] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5104] <... exit_group resumed>) = ? [pid 5109] <... ftruncate resumed>) = 0 [pid 5108] <... open resumed>) = 4 [pid 5106] <... sendfile resumed>) = 91648 [pid 5104] +++ exited with 0 +++ [pid 5109] lseek(3, 512, SEEK_END [pid 5108] sendfile(3, 4, NULL, 122112 [pid 5105] <... sendfile resumed>) = 99328 [pid 5109] <... lseek resumed>) = 148480 [pid 5106] exit_group(0 [pid 5109] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW) = 4 [pid 5109] sendfile(3, 4, NULL, 122112 [pid 5086] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5106] <... exit_group resumed>) = ? [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5106] +++ exited with 0 +++ [pid 5108] <... sendfile resumed>) = 65536 ./strace-static-x86_64: Process 5110 attached [pid 5109] <... sendfile resumed>) = 65536 [pid 5108] exit_group(0 [pid 5105] exit_group(0 [pid 5086] <... clone resumed>, child_tidptr=0x555556e215d0) = 5110 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5109] exit_group(0 [pid 5108] <... exit_group resumed>) = ? [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] <... exit_group resumed>) = ? [pid 5108] +++ exited with 0 +++ [pid 5105] <... exit_group resumed>) = ? [pid 5082] <... clone resumed>, child_tidptr=0x555556e215d0) = 5111 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] <... prctl resumed>) = 0 [pid 5109] +++ exited with 0 +++ [pid 5105] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] restart_syscall(<... resuming interrupted clone ...> [pid 5111] <... prctl resumed>) = 0 [pid 5110] setpgid(0, 0 [pid 5089] <... restart_syscall resumed>) = 0 [ 62.180507][ T5103] alloc_pages+0x1aa/0x270 [ 62.192990][ T5103] pte_alloc_one+0x1a/0x230 [ 62.204485][ T5103] __handle_mm_fault+0x3c25/0x3e60 [ 62.224773][ T5103] handle_mm_fault+0x1b6/0x850 [pid 5111] setpgid(0, 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5112 attached [pid 5111] <... setpgid resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5088] <... clone resumed>, child_tidptr=0x555556e215d0) = 5112 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5089] <... clone resumed>, child_tidptr=0x555556e215d0) = 5113 [pid 5090] <... clone resumed>, child_tidptr=0x555556e215d0) = 5114 ./strace-static-x86_64: Process 5113 attached [pid 5110] <... openat resumed>) = 3 [pid 5110] write(3, "1000", 4 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5110] <... write resumed>) = 4 [pid 5110] close(3) = 0 [pid 5110] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5110] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5110] creat("./bus", 011 [pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5113] setpgid(0, 0) = 0 [pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5111] <... openat resumed>) = 3 [pid 5110] <... creat resumed>) = 3 ./strace-static-x86_64: Process 5114 attached [pid 5113] write(3, "1000", 4 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5111] write(3, "1000", 4 [pid 5110] ftruncate(3, 2048 [pid 5111] <... write resumed>) = 4 [pid 5111] close(3 [pid 5110] <... ftruncate resumed>) = 0 [pid 5111] <... close resumed>) = 0 [pid 5110] lseek(3, 512, SEEK_END [pid 5113] <... write resumed>) = 4 [pid 5113] close(3) = 0 [pid 5111] write(-1, NULL, 0 [pid 5113] write(-1, NULL, 0 [pid 5112] <... prctl resumed>) = 0 [pid 5110] <... lseek resumed>) = 2560 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5113] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5112] setpgid(0, 0 [pid 5111] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5110] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5114] <... prctl resumed>) = 0 [pid 5113] setrlimit(RLIMIT_STACK, NULL [pid 5112] <... setpgid resumed>) = 0 [pid 5111] setrlimit(RLIMIT_STACK, NULL [pid 5113] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5111] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5110] <... open resumed>) = 4 [pid 5113] creat("./bus", 011 [pid 5111] creat("./bus", 011 [pid 5110] sendfile(3, 4, NULL, 122112 [pid 5114] setpgid(0, 0 [pid 5113] <... creat resumed>) = 3 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5113] ftruncate(3, 2048) = 0 [pid 5111] <... creat resumed>) = 3 [ 62.232226][ T5103] do_user_addr_fault+0x475/0x1230 [ 62.238770][ T5103] exc_page_fault+0x98/0x170 [ 62.257343][ T5103] asm_exc_page_fault+0x26/0x30 [ 62.262662][ T5103] page last free stack trace: [ 62.276815][ T5103] free_pcp_prepare+0x4d0/0x910 [pid 5114] <... setpgid resumed>) = 0 [pid 5113] lseek(3, 512, SEEK_END [pid 5112] <... openat resumed>) = 3 [pid 5111] ftruncate(3, 2048 [pid 5113] <... lseek resumed>) = 10240 [pid 5113] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5112] write(3, "1000", 4 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5112] <... write resumed>) = 4 [pid 5112] close(3) = 0 [pid 5112] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5114] <... openat resumed>) = 3 [pid 5112] setrlimit(RLIMIT_STACK, NULL [pid 5114] write(3, "1000", 4 [pid 5112] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5114] <... write resumed>) = 4 [pid 5112] creat("./bus", 011 [pid 5114] close(3) = 0 [pid 5111] <... ftruncate resumed>) = 0 [pid 5114] write(-1, NULL, 0 [pid 5111] lseek(3, 512, SEEK_END [pid 5114] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5111] <... lseek resumed>) = 12800 [pid 5114] setrlimit(RLIMIT_STACK, NULL [pid 5111] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5114] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5114] creat("./bus", 011 [pid 5113] <... open resumed>) = 4 [pid 5113] sendfile(3, 4, NULL, 122112) = 0 [pid 5114] <... creat resumed>) = 3 [pid 5112] <... creat resumed>) = 3 [pid 5111] <... open resumed>) = 4 [pid 5114] ftruncate(3, 2048 [pid 5113] exit_group(0 [pid 5112] ftruncate(3, 2048 [pid 5111] sendfile(3, 4, NULL, 122112 [pid 5113] <... exit_group resumed>) = ? [pid 5114] <... ftruncate resumed>) = 0 [pid 5113] +++ exited with 0 +++ [pid 5112] <... ftruncate resumed>) = 0 [pid 5114] lseek(3, 512, SEEK_END [pid 5112] lseek(3, 512, SEEK_END [pid 5110] <... sendfile resumed>) = 19968 [pid 5114] <... lseek resumed>) = 40960 [pid 5112] <... lseek resumed>) = 40960 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5114] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5112] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5089] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5114] <... open resumed>) = 4 [pid 5112] <... open resumed>) = 4 [pid 5110] exit_group(0 [pid 5114] sendfile(3, 4, NULL, 122112 [pid 5112] sendfile(3, 4, NULL, 122112 [pid 5089] <... clone resumed>, child_tidptr=0x555556e215d0) = 5115 ./strace-static-x86_64: Process 5115 attached [pid 5110] <... exit_group resumed>) = ? [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5115] setpgid(0, 0) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5114] <... sendfile resumed>) = 94208 [pid 5115] <... openat resumed>) = 3 [pid 5114] exit_group(0 [pid 5115] write(3, "1000", 4) = 4 [pid 5114] <... exit_group resumed>) = ? [pid 5115] close(3) = 0 [pid 5115] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5115] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5115] creat("./bus", 011 [pid 5112] <... sendfile resumed>) = 65536 [pid 5112] exit_group(0) = ? [ 62.284676][ T5103] free_unref_page+0x1d/0x490 [ 62.293008][ T5103] free_contig_range+0xb5/0x180 [ 62.298815][ T5103] destroy_args+0x6c4/0x920 [ 62.305476][ T5103] debug_vm_pgtable+0x242a/0x4640 [ 62.315102][ T5103] do_one_initcall+0x141/0x7d0 [ 62.323467][ T5103] kernel_init_freeable+0x5ec/0x900 [ 62.329733][ T5103] kernel_init+0x1e/0x2c0 [pid 5114] +++ exited with 0 +++ [pid 5115] <... creat resumed>) = 3 [pid 5112] +++ exited with 0 +++ [pid 5111] <... sendfile resumed>) = 118784 [pid 5110] +++ exited with 0 +++ [pid 5115] ftruncate(3, 2048 [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5086] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5115] <... ftruncate resumed>) = 0 [pid 5115] lseek(3, 512, SEEK_END [pid 5111] exit_group(0 [pid 5115] <... lseek resumed>) = 2560 [pid 5111] <... exit_group resumed>) = ? [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5115] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW) = 4 [pid 5090] <... clone resumed>, child_tidptr=0x555556e215d0) = 5116 [pid 5086] <... clone resumed>, child_tidptr=0x555556e215d0) = 5117 [pid 5115] sendfile(3, 4, NULL, 122112 [pid 5088] <... clone resumed>, child_tidptr=0x555556e215d0) = 5118 ./strace-static-x86_64: Process 5118 attached [pid 5111] +++ exited with 0 +++ ./strace-static-x86_64: Process 5116 attached [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5118] <... prctl resumed>) = 0 [pid 5118] setpgid(0, 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5117 attached [pid 5118] <... setpgid resumed>) = 0 [pid 5116] <... prctl resumed>) = 0 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] setpgid(0, 0 [pid 5118] <... openat resumed>) = 3 [pid 5117] <... prctl resumed>) = 0 [pid 5116] <... setpgid resumed>) = 0 [ 62.346935][ T5103] ret_from_fork+0x1f/0x30 ./strace-static-x86_64: Process 5119 attached [pid 5118] write(3, "1000", 4 [pid 5117] setpgid(0, 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5082] <... clone resumed>, child_tidptr=0x555556e215d0) = 5119 [pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5118] <... write resumed>) = 4 [pid 5116] <... openat resumed>) = 3 [pid 5119] <... prctl resumed>) = 0 [pid 5118] close(3 [pid 5116] write(3, "1000", 4 [pid 5119] setpgid(0, 0 [pid 5118] <... close resumed>) = 0 [pid 5116] <... write resumed>) = 4 [pid 5119] <... setpgid resumed>) = 0 [pid 5118] write(-1, NULL, 0 [pid 5116] close(3 [pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5118] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5116] <... close resumed>) = 0 [pid 5119] <... openat resumed>) = 3 [pid 5118] setrlimit(RLIMIT_STACK, NULL [pid 5116] write(-1, NULL, 0 [pid 5119] write(3, "1000", 4 [pid 5118] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5117] <... setpgid resumed>) = 0 [pid 5116] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5119] <... write resumed>) = 4 [pid 5118] creat("./bus", 011 [pid 5116] setrlimit(RLIMIT_STACK, NULL [pid 5119] close(3 [pid 5116] <... setrlimit resumed>) = -1 EFAULT (Bad address) [pid 5119] <... close resumed>) = 0 [pid 5116] creat("./bus", 011 [pid 5119] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5119] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [ 62.369754][ T5103] ------------[ cut here ]------------ [ 62.375409][ T5103] kernel BUG at mm/mmu_gather.c:139! [ 62.382498][ T5103] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 62.388598][ T5103] CPU: 0 PID: 5103 Comm: syz-executor330 Not tainted 6.2.0-rc6-next-20230203-syzkaller #0 [ 62.398507][ T5103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 62.408579][ T5103] RIP: 0010:__tlb_remove_page_size+0x24c/0x480 [ 62.414779][ T5103] Code: 01 00 00 8b 6d 0c e9 e1 fe ff ff e8 ae 63 c1 ff 0f 0b e8 a7 63 c1 ff 4c 89 f7 48 c7 c6 c0 77 58 8a 48 83 e7 fc e8 64 0b fa ff <0f> 0b e8 8d 63 c1 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c [ 62.434440][ T5103] RSP: 0018:ffffc90003c6fa08 EFLAGS: 00010293 [ 62.440528][ T5103] RAX: 0000000000000000 RBX: ffffc90003c6fcd8 RCX: 0000000000000000 [ 62.448518][ T5103] RDX: ffff8880241a9d40 RSI: ffffffff81c3070c RDI: 0000000000000000 [ 62.456498][ T5103] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e751757 [ 62.464472][ T5103] R10: fffffbfff1cea2ea R11: 0000000000000001 R12: 0000000000000000 [ 62.472452][ T5103] R13: 0000000000000001 R14: ffffea0001cb35c0 R15: ffffc90003c6fd00 [ 62.480427][ T5103] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 62.489368][ T5103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.496042][ T5103] CR2: 00007f09a33aa900 CR3: 0000000072cf9000 CR4: 00000000003506f0 [ 62.504025][ T5103] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.511998][ T5103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.519972][ T5103] Call Trace: [ 62.523248][ T5103] [ 62.526186][ T5103] tlb_remove_page+0x12/0x30 [ 62.530802][ T5103] ___pte_free_tlb+0x123/0x1a0 [ 62.535603][ T5103] free_pgd_range+0x497/0xbf0 [ 62.540296][ T5103] free_pgtables+0x2d6/0x420 [ 62.544897][ T5103] ? free_pgd_range+0xbf0/0xbf0 [ 62.549757][ T5103] ? down_write_killable_nested+0x250/0x250 [ 62.555663][ T5103] exit_mmap+0x1f3/0x7d0 [ 62.559929][ T5103] ? do_vma_munmap+0xa0/0xa0 [ 62.564571][ T5103] __mmput+0x128/0x4c0 [ 62.568662][ T5103] mmput+0x60/0x70 [ 62.572407][ T5103] do_exit+0x9d7/0x2b60 [ 62.576572][ T5103] ? mm_update_next_owner+0x7b0/0x7b0 [ 62.581955][ T5103] ? _raw_spin_unlock_irq+0x23/0x50 [ 62.587169][ T5103] do_group_exit+0xd4/0x2a0 [ 62.591679][ T5103] __x64_sys_exit_group+0x3e/0x50 [ 62.596709][ T5103] do_syscall_64+0x39/0xb0 [ 62.601142][ T5103] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.607046][ T5103] RIP: 0033:0x7f09a33e7b19 [ 62.611463][ T5103] Code: Unable to access opcode bytes at 0x7f09a33e7aef. [ 62.618473][ T5103] RSP: 002b:00007fff50b25718 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 62.626897][ T5103] RAX: ffffffffffffffda RBX: 00007f09a345b330 RCX: 00007f09a33e7b19 [ 62.634873][ T5103] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 62.642846][ T5103] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000001 [ 62.650843][ T5103] R10: 000000000001dd00 R11: 0000000000000246 R12: 00007f09a345b330 [ 62.658835][ T5103] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 62.666814][ T5103] [pid 5119] creat("./bus", 011 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] write(3, "1000", 4) = 4 [pid 5117] close(3) = 0 [pid 5117] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5117] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5117] creat("./bus", 011 [pid 5119] <... creat resumed>) = 3 [pid 5118] <... creat resumed>) = 3 [pid 5117] <... creat resumed>) = 3 [pid 5116] <... creat resumed>) = 3 [pid 5119] ftruncate(3, 2048 [pid 5117] ftruncate(3, 2048 [pid 5116] ftruncate(3, 2048 [pid 5117] <... ftruncate resumed>) = 0 [pid 5119] <... ftruncate resumed>) = 0 [pid 5119] lseek(3, 512, SEEK_END [pid 5116] <... ftruncate resumed>) = 0 [pid 5117] lseek(3, 512, SEEK_END [pid 5119] <... lseek resumed>) = 2560 [pid 5118] ftruncate(3, 2048 [pid 5116] lseek(3, 512, SEEK_END [pid 5119] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5118] <... ftruncate resumed>) = 0 [pid 5117] <... lseek resumed>) = 2560 [pid 5116] <... lseek resumed>) = 2560 [pid 5115] <... sendfile resumed>) = 58368 [pid 5119] <... open resumed>) = 4 [pid 5116] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5117] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5116] <... open resumed>) = 4 [pid 5117] <... open resumed>) = 4 [pid 5116] sendfile(3, 4, NULL, 122112 [pid 5119] sendfile(3, 4, NULL, 122112 [pid 5117] sendfile(3, 4, NULL, 122112 [pid 5118] lseek(3, 512, SEEK_END) = 5120 [pid 5118] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5115] exit_group(0) = ? [pid 5115] +++ exited with 0 +++ [pid 5118] <... open resumed>) = 4 [pid 5118] sendfile(3, 4, NULL, 122112 [pid 5089] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [ 62.669831][ T5103] Modules linked in: [ 62.677969][ T5103] ---[ end trace 0000000000000000 ]--- [ 62.684551][ T5103] RIP: 0010:__tlb_remove_page_size+0x24c/0x480 [ 62.691341][ T5103] Code: 01 00 00 8b 6d 0c e9 e1 fe ff ff e8 ae 63 c1 ff 0f 0b e8 a7 63 c1 ff 4c 89 f7 48 c7 c6 c0 77 58 8a 48 83 e7 fc e8 64 0b fa ff <0f> 0b e8 8d 63 c1 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c [ 62.711625][ T5103] RSP: 0018:ffffc90003c6fa08 EFLAGS: 00010293 [pid 5089] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5119] <... sendfile resumed>) = 58368 [pid 5119] exit_group(0) = ? [pid 5119] +++ exited with 0 +++ [pid 5118] <... sendfile resumed>) = 60928 [pid 5089] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] exit_group(0 [pid 5082] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5118] <... exit_group resumed>) = ? [pid 5116] <... sendfile resumed>) = 66048 [pid 5082] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5118] +++ exited with 0 +++ [pid 5117] <... sendfile resumed>) = 66048 [pid 5116] exit_group(0 [pid 5117] exit_group(0 [pid 5116] <... exit_group resumed>) = ? [pid 5082] <... clone resumed>, child_tidptr=0x555556e215d0) = 5120 [pid 5117] <... exit_group resumed>) = ? [pid 5116] +++ exited with 0 +++ [pid 5117] +++ exited with 0 +++ [pid 5090] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5088] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5086] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5089] <... clone resumed>, child_tidptr=0x555556e215d0) = 5121 [pid 5090] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e215d0) = 5122 ./strace-static-x86_64: Process 5121 attached [ 62.717983][ T5103] RAX: 0000000000000000 RBX: ffffc90003c6fcd8 RCX: 0000000000000000 [ 62.726263][ T5103] RDX: ffff8880241a9d40 RSI: ffffffff81c3070c RDI: 0000000000000000 [ 62.734479][ T5103] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e751757 [ 62.742671][ T5103] R10: fffffbfff1cea2ea R11: 0000000000000001 R12: 0000000000000000 [ 62.750795][ T5103] R13: 0000000000000001 R14: ffffea0001cb35c0 R15: ffffc90003c6fd00 [ 62.759058][ T5103] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5121] setpgid(0, 0) = 0 [pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5121] write(3, "1000", 4) = 4 [pid 5121] close(3) = 0 [pid 5121] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5121] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 5122 attached [pid 5088] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5120 attached [pid 5121] creat("./bus", 011 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] write(3, "1000", 4 [pid 5121] <... creat resumed>) = 3 [pid 5120] <... write resumed>) = 4 [pid 5120] close(3) = 0 [pid 5120] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5120] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5120] creat("./bus", 011 [pid 5086] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5122] <... prctl resumed>) = 0 [pid 5121] ftruncate(3, 2048 [pid 5120] <... creat resumed>) = 3 [pid 5121] <... ftruncate resumed>) = 0 [pid 5120] ftruncate(3, 2048 [pid 5121] lseek(3, 512, SEEK_END [pid 5120] <... ftruncate resumed>) = 0 [pid 5121] <... lseek resumed>) = 2560 [pid 5120] lseek(3, 512, SEEK_END [pid 5121] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5120] <... lseek resumed>) = 2560 [pid 5121] <... open resumed>) = 4 [pid 5120] open("./bus", O_RDONLY|O_DIRECT|O_NOFOLLOW [pid 5121] sendfile(3, 4, NULL, 122112 [pid 5120] <... open resumed>) = 4 [pid 5120] sendfile(3, 4, NULL, 122112./strace-static-x86_64: Process 5123 attached [pid 5088] <... clone resumed>, child_tidptr=0x555556e215d0) = 5123 ./strace-static-x86_64: Process 5124 attached [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5122] setpgid(0, 0 [pid 5123] <... prctl resumed>) = 0 [pid 5123] setpgid(0, 0) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3) = 0 [pid 5123] write(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5123] setrlimit(RLIMIT_STACK, NULL) = -1 EFAULT (Bad address) [pid 5123] creat("./bus", 011 [pid 5122] <... setpgid resumed>) = 0 [pid 5086] <... clone resumed>, child_tidptr=0x555556e215d0) = 5124 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL [ 62.769434][ T5103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.777053][ T5103] CR2: 0000000020000040 CR3: 0000000078dee000 CR4: 00000000003506f0 [ 62.786635][ T5103] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.796014][ T5103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.805158][ T5103] Kernel panic - not syncing: Fatal exception [ 62.811388][ T5103] Kernel Offset: disabled [ 62.815720][ T5103] Rebooting in 86400 seconds..