./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2025362354 <...> Warning: Permanently added '10.128.10.2' (ED25519) to the list of known hosts. execve("./syz-executor2025362354", ["./syz-executor2025362354"], 0x7ffc0c85d4d0 /* 10 vars */) = 0 brk(NULL) = 0x5555607a7000 brk(0x5555607a7d00) = 0x5555607a7d00 arch_prctl(ARCH_SET_FS, 0x5555607a7380) = 0 set_tid_address(0x5555607a7650) = 5067 set_robust_list(0x5555607a7660, 24) = 0 rseq(0x5555607a7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2025362354", 4096) = 28 getrandom("\x8e\x35\x41\xaf\x08\x57\x8d\x3b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555607a7d00 brk(0x5555607c8d00) = 0x5555607c8d00 brk(0x5555607c9000) = 0x5555607c9000 mprotect(0x7efcbdc38000, 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 5068 attached [pid 5068] set_robust_list(0x5555607a7660, 24) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5067] <... clone resumed>, child_tidptr=0x5555607a7650) = 5068 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5069 attached [pid 5069] set_robust_list(0x5555607a7660, 24 [pid 5068] <... clone resumed>, child_tidptr=0x5555607a7650) = 5069 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5070 attached ) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x5555607a7650) = 5070 [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] set_robust_list(0x5555607a7660, 24 [pid 5069] setpgid(0, 0 [pid 5070] <... set_robust_list resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5071 attached [pid 5069] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5072 attached [pid 5067] <... clone resumed>, child_tidptr=0x5555607a7650) = 5071 [pid 5071] set_robust_list(0x5555607a7660, 24 [pid 5070] <... clone resumed>, child_tidptr=0x5555607a7650) = 5072 [pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... set_robust_list resumed>) = 0 [pid 5072] set_robust_list(0x5555607a7660, 24) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... openat resumed>) = 3 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5073 attached ) = 0 [pid 5069] write(3, "1000", 4 [pid 5067] <... clone resumed>, child_tidptr=0x5555607a7650) = 5073 [pid 5073] set_robust_list(0x5555607a7660, 24 [pid 5072] setpgid(0, 0 [pid 5069] <... write resumed>) = 4 ./strace-static-x86_64: Process 5074 attached [pid 5067] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... set_robust_list resumed>) = 0 [pid 5072] <... setpgid resumed>) = 0 [pid 5069] close(3 [pid 5074] set_robust_list(0x5555607a7660, 24 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... clone resumed>, child_tidptr=0x5555607a7650) = 5074 [pid 5069] <... close resumed>) = 0 [pid 5074] <... set_robust_list resumed>) = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000./strace-static-x86_64: Process 5075 attached [pid 5074] <... prctl resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5074] setpgid(0, 0./strace-static-x86_64: Process 5076 attached [pid 5072] write(3, "1000", 4 [pid 5074] <... setpgid resumed>) = 0 [pid 5072] <... write resumed>) = 4 [pid 5072] close(3) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555607a7650) = 5076 [pid 5072] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5075] set_robust_list(0x5555607a7660, 24 [pid 5069] <... openat resumed>) = 3 [pid 5076] set_robust_list(0x5555607a7660, 24 [pid 5075] <... set_robust_list resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... close resumed>) = 0 [pid 5067] <... clone resumed>, child_tidptr=0x5555607a7650) = 5075 [pid 5076] <... set_robust_list resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... openat resumed>) = 3 [pid 5076] <... prctl resumed>) = 0 [pid 5069] close(3 [pid 5076] setpgid(0, 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5069] <... close resumed>) = 0 [pid 5076] <... setpgid resumed>) = 0 [pid 5074] write(3, "1000", 4./strace-static-x86_64: Process 5077 attached [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... ioctl resumed>) = 0 [pid 5074] <... write resumed>) = 4 [pid 5069] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5074] close(3 [pid 5077] set_robust_list(0x5555607a7660, 24 [pid 5074] <... close resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555607a7650) = 5077 [pid 5069] <... openat resumed>) = 3 [pid 5077] <... set_robust_list resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5072] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5069] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5076] write(3, "1000", 4 [pid 5077] <... prctl resumed>) = 0 [pid 5076] <... write resumed>) = 4 [pid 5074] <... openat resumed>) = 3 [pid 5072] <... ioctl resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5077] setpgid(0, 0 [pid 5076] close(3 [pid 5072] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5077] <... setpgid resumed>) = 0 [pid 5076] <... close resumed>) = 0 [pid 5074] close(3 [pid 5069] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5076] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5074] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5069] <... ioctl resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5069] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5077] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5072] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5076] close(3 [pid 5074] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5069] <... openat resumed>) = 4 [pid 5074] <... ioctl resumed>) = 0 [pid 5077] write(3, "1000", 4 [pid 5076] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>) = 0 [pid 5077] <... write resumed>) = 4 [pid 5072] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5077] close(3 [pid 5076] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5074] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5069] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5077] <... close resumed>) = 0 [pid 5076] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = 0 [pid 5072] <... ioctl resumed>) = 0 [pid 5069] <... ioctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5076] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5074] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5072] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5069] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5077] <... openat resumed>) = 3 [pid 5074] <... openat resumed>) = 4 [pid 5072] <... ioctl resumed>) = 0 [pid 5077] close(3 [pid 5076] <... ioctl resumed>) = 0 [pid 5074] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5069] <... ioctl resumed>) = 0 [pid 5077] <... close resumed>) = 0 [pid 5076] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5074] <... ioctl resumed>) = 0 [pid 5077] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5076] <... ioctl resumed>) = 0 [pid 5074] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5072] exit_group(0 [pid 5069] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5077] <... openat resumed>) = 3 [pid 5076] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5074] <... ioctl resumed>) = 0 [pid 5072] <... exit_group resumed>) = ? [pid 5069] <... ioctl resumed>) = 0 [pid 5077] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5076] <... openat resumed>) = 4 [pid 5074] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5076] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5074] <... ioctl resumed>) = 0 [pid 5069] exit_group(0 [pid 5076] <... ioctl resumed>) = 0 [pid 5074] exit_group(0) = ? [pid 5069] <... exit_group resumed>) = ? [pid 5076] ioctl(4, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 5076] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0) = 0 [pid 5076] exit_group(0) = ? [pid 5077] <... ioctl resumed>) = 0 [pid 5077] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5072] +++ exited with 0 +++ [pid 5077] <... ioctl resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5077] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5074] +++ exited with 0 +++ [pid 5077] <... openat resumed>) = 4 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5069] +++ exited with 0 +++ [pid 5077] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5076] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5077] <... ioctl resumed>) = 0 [pid 5077] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... restart_syscall resumed>) = 0 [pid 5077] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5078 attached [pid 5077] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5078] set_robust_list(0x5555607a7660, 24) = 0 [pid 5077] <... ioctl resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555607a7650) = 5078 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5077] exit_group(0./strace-static-x86_64: Process 5079 attached [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5079] set_robust_list(0x5555607a7660, 24 [pid 5078] <... prctl resumed>) = 0 [pid 5077] <... exit_group resumed>) = ? [pid 5071] <... clone resumed>, child_tidptr=0x5555607a7650) = 5079 ./strace-static-x86_64: Process 5081 attached ./strace-static-x86_64: Process 5080 attached [pid 5079] <... set_robust_list resumed>) = 0 [pid 5078] setpgid(0, 0 [pid 5077] +++ exited with 0 +++ [pid 5081] set_robust_list(0x5555607a7660, 24 [pid 5080] set_robust_list(0x5555607a7660, 24 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5078] <... setpgid resumed>) = 0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5073] <... clone resumed>, child_tidptr=0x5555607a7650) = 5081 [pid 5075] restart_syscall(<... resuming interrupted clone ...> [pid 5081] <... set_robust_list resumed>) = 0 [pid 5080] <... set_robust_list resumed>) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5079] <... prctl resumed>) = 0 [pid 5075] <... restart_syscall resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555607a7650) = 5080 [pid 5081] <... prctl resumed>) = 0 [pid 5080] <... prctl resumed>) = 0 [pid 5079] setpgid(0, 0 [pid 5078] <... openat resumed>) = 3 [pid 5081] setpgid(0, 0 [pid 5079] <... setpgid resumed>) = 0 [pid 5078] write(3, "1000", 4 [pid 5081] <... setpgid resumed>) = 0 [pid 5080] setpgid(0, 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5078] <... write resumed>) = 4 [pid 5080] <... setpgid resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5078] close(3 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5079] write(3, "1000", 4 [pid 5078] <... close resumed>) = 0 ./strace-static-x86_64: Process 5082 attached [pid 5081] <... openat resumed>) = 3 [pid 5078] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5079] <... write resumed>) = 4 [pid 5082] set_robust_list(0x5555607a7660, 24 [pid 5080] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5075] <... clone resumed>, child_tidptr=0x5555607a7650) = 5082 [pid 5082] <... set_robust_list resumed>) = 0 [pid 5081] write(3, "1000", 4 [pid 5080] write(3, "1000", 4 [pid 5079] close(3 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5080] <... write resumed>) = 4 [pid 5079] <... close resumed>) = 0 [pid 5078] close(3 [pid 5082] <... prctl resumed>) = 0 [pid 5078] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5082] setpgid(0, 0 [pid 5081] <... write resumed>) = 4 [pid 5080] close(3 [pid 5078] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5082] <... setpgid resumed>) = 0 [pid 5081] close(3 [pid 5080] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 3 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5081] <... close resumed>) = 0 [pid 5080] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5078] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5082] <... openat resumed>) = 3 [pid 5078] <... ioctl resumed>) = 0 [pid 5078] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5082] write(3, "1000", 4 [pid 5081] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5080] <... openat resumed>) = 3 [pid 5079] close(3 [pid 5078] <... ioctl resumed>) = 0 [pid 5080] close(3 [pid 5079] <... close resumed>) = 0 [pid 5079] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5082] <... write resumed>) = 4 [pid 5078] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5082] close(3 [pid 5081] <... openat resumed>) = 3 [pid 5080] <... close resumed>) = 0 [pid 5079] <... openat resumed>) = 3 [pid 5078] <... openat resumed>) = 4 [pid 5082] <... close resumed>) = 0 [pid 5078] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5080] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5082] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5081] close(3 [pid 5079] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5078] <... ioctl resumed>) = 0 [pid 5082] <... openat resumed>) = 3 [pid 5081] <... close resumed>) = 0 [pid 5080] <... openat resumed>) = 3 [pid 5079] <... ioctl resumed>) = 0 [pid 5078] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5082] close(3 [pid 5081] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5080] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5079] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5078] <... ioctl resumed>) = 0 [pid 5082] <... close resumed>) = 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5078] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5080] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5079] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5078] <... ioctl resumed>) = 0 [pid 5081] <... openat resumed>) = 3 [pid 5082] <... openat resumed>) = 3 [pid 5082] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5079] <... openat resumed>) = 4 [pid 5080] <... ioctl resumed>) = 0 [pid 5081] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5079] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5080] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5081] <... ioctl resumed>) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5080] <... openat resumed>) = 4 [pid 5079] <... ioctl resumed>) = 0 [pid 5078] exit_group(0 [pid 5081] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5082] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5081] <... ioctl resumed>) = 0 [pid 5078] <... exit_group resumed>) = ? [pid 5080] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5079] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5081] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5080] <... ioctl resumed>) = 0 [pid 5079] <... ioctl resumed>) = 0 [pid 5082] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5081] <... openat resumed>) = 4 [pid 5080] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5079] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5078] +++ exited with 0 +++ [pid 5082] <... openat resumed>) = 4 [pid 5079] <... ioctl resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5082] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5080] <... ioctl resumed>) = 0 [pid 5082] <... ioctl resumed>) = 0 [pid 5081] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5079] exit_group(0 [pid 5082] ioctl(4, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 5082] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0) = 0 [pid 5082] exit_group(0 [pid 5080] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5081] <... ioctl resumed>) = 0 [pid 5079] <... exit_group resumed>) = ? [pid 5081] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5080] <... ioctl resumed>) = 0 [pid 5082] <... exit_group resumed>) = ? [pid 5082] +++ exited with 0 +++ [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] <... ioctl resumed>) = 0 [pid 5081] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5080] exit_group(0 [pid 5079] +++ exited with 0 +++ [pid 5080] <... exit_group resumed>) = ? [pid 5081] <... ioctl resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] exit_group(0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5081] <... exit_group resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5080] +++ exited with 0 +++ [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5083 attached ./strace-static-x86_64: Process 5084 attached [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5085 attached [pid 5084] set_robust_list(0x5555607a7660, 24 [pid 5083] set_robust_list(0x5555607a7660, 24 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... clone resumed>, child_tidptr=0x5555607a7650) = 5083 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5075] <... clone resumed>, child_tidptr=0x5555607a7650) = 5084 [pid 5071] <... clone resumed>, child_tidptr=0x5555607a7650) = 5085 ./strace-static-x86_64: Process 5086 attached [pid 5085] set_robust_list(0x5555607a7660, 24 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5083] <... set_robust_list resumed>) = 0 [pid 5086] set_robust_list(0x5555607a7660, 24 [pid 5073] <... clone resumed>, child_tidptr=0x5555607a7650) = 5086 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] <... prctl resumed>) = 0 [pid 5083] <... prctl resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5086] <... prctl resumed>) = 0 [pid 5085] setpgid(0, 0 [pid 5084] setpgid(0, 0 [pid 5083] setpgid(0, 0 [pid 5086] setpgid(0, 0) = 0 [pid 5085] <... setpgid resumed>) = 0 [pid 5084] <... setpgid resumed>) = 0 [pid 5083] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5087 attached [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5087] set_robust_list(0x5555607a7660, 24) = 0 [pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5086] <... openat resumed>) = 3 [pid 5087] <... prctl resumed>) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... clone resumed>, child_tidptr=0x5555607a7650) = 5087 [pid 5087] setpgid(0, 0 [pid 5086] write(3, "1000", 4 [pid 5087] <... setpgid resumed>) = 0 [pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5086] <... write resumed>) = 4 [pid 5085] <... openat resumed>) = 3 [pid 5084] <... openat resumed>) = 3 [pid 5087] <... openat resumed>) = 3 [pid 5086] close(3 [pid 5084] write(3, "1000", 4 [pid 5083] <... openat resumed>) = 3 [pid 5087] write(3, "1000", 4 [pid 5086] <... close resumed>) = 0 [pid 5085] write(3, "1000", 4 [pid 5084] <... write resumed>) = 4 [pid 5087] <... write resumed>) = 4 [pid 5085] <... write resumed>) = 4 [pid 5087] close(3 [pid 5086] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5085] close(3 [pid 5084] close(3 [pid 5083] write(3, "1000", 4 [pid 5087] <... close resumed>) = 0 [pid 5086] <... openat resumed>) = 3 [pid 5085] <... close resumed>) = 0 [pid 5084] <... close resumed>) = 0 [pid 5083] <... write resumed>) = 4 [pid 5087] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5086] close(3 [pid 5085] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5084] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5087] <... openat resumed>) = 3 [pid 5086] <... close resumed>) = 0 [pid 5085] <... openat resumed>) = 3 [pid 5083] close(3 [pid 5087] close(3 [pid 5086] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5085] close(3 [pid 5084] <... openat resumed>) = 3 [pid 5083] <... close resumed>) = 0 [pid 5087] <... close resumed>) = 0 [pid 5085] <... close resumed>) = 0 [pid 5083] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5087] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5086] <... openat resumed>) = 3 [pid 5085] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5084] close(3 [pid 5087] <... openat resumed>) = 3 [pid 5086] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5083] <... openat resumed>) = 3 [pid 5084] <... close resumed>) = 0 [pid 5086] <... ioctl resumed>) = 0 [pid 5087] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5085] <... openat resumed>) = 3 [pid 5086] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5084] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5083] close(3 [pid 5087] <... ioctl resumed>) = 0 [pid 5086] <... ioctl resumed>) = 0 [pid 5085] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5087] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5085] <... ioctl resumed>) = 0 [pid 5087] <... ioctl resumed>) = 0 [pid 5085] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5087] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5086] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5084] <... openat resumed>) = 3 [pid 5083] <... close resumed>) = 0 [pid 5083] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5086] <... openat resumed>) = 4 [pid 5087] <... openat resumed>) = 4 [pid 5085] <... ioctl resumed>) = 0 [pid 5084] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5083] <... openat resumed>) = 3 [pid 5086] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5087] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5085] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5084] <... ioctl resumed>) = 0 [pid 5083] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5087] <... ioctl resumed>) = 0 [pid 5086] <... ioctl resumed>) = 0 [pid 5085] <... openat resumed>) = 4 [pid 5084] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5083] <... ioctl resumed>) = 0 [pid 5087] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5085] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5084] <... ioctl resumed>) = 0 [pid 5083] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5087] <... ioctl resumed>) = 0 [pid 5086] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5085] <... ioctl resumed>) = 0 [pid 5084] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5086] <... ioctl resumed>) = 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5087] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5085] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5084] <... openat resumed>) = 4 [pid 5083] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5087] <... ioctl resumed>) = 0 [pid 5086] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5085] <... ioctl resumed>) = 0 [pid 5087] exit_group(0 [pid 5086] <... ioctl resumed>) = 0 [pid 5085] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5084] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5083] <... openat resumed>) = 4 [pid 5087] <... exit_group resumed>) = ? [pid 5085] <... ioctl resumed>) = 0 [pid 5084] <... ioctl resumed>) = 0 [pid 5083] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5086] exit_group(0 [pid 5085] exit_group(0 [pid 5084] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5086] <... exit_group resumed>) = ? [pid 5084] <... ioctl resumed>) = 0 [pid 5083] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5084] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5083] <... ioctl resumed>) = 0 [pid 5084] <... ioctl resumed>) = 0 [pid 5083] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5087] +++ exited with 0 +++ [pid 5084] exit_group(0 [pid 5083] <... ioctl resumed>) = 0 [pid 5084] <... exit_group resumed>) = ? [pid 5083] exit_group(0 [pid 5086] +++ exited with 0 +++ [pid 5085] <... exit_group resumed>) = ? [pid 5084] +++ exited with 0 +++ [pid 5083] <... exit_group resumed>) = ? [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5085] +++ exited with 0 +++ [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5088 attached [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5083] +++ exited with 0 +++ [pid 5075] <... clone resumed>, child_tidptr=0x5555607a7650) = 5088 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... clone resumed>, child_tidptr=0x5555607a7650) = 5089 [pid 5071] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5090 attached ./strace-static-x86_64: Process 5089 attached [pid 5088] set_robust_list(0x5555607a7660, 24 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5090] set_robust_list(0x5555607a7660, 24 [pid 5089] set_robust_list(0x5555607a7660, 24 [pid 5088] <... set_robust_list resumed>) = 0 [pid 5090] <... set_robust_list resumed>) = 0 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... clone resumed>, child_tidptr=0x5555607a7650) = 5090 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] <... prctl resumed>) = 0 [pid 5089] <... prctl resumed>) = 0 [pid 5090] setpgid(0, 0 [pid 5089] setpgid(0, 0 [pid 5090] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5091 attached [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5089] <... setpgid resumed>) = 0 [pid 5088] <... prctl resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5090] <... openat resumed>) = 3 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... clone resumed>, child_tidptr=0x5555607a7650) = 5091 [pid 5090] write(3, "1000", 4 [pid 5088] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5092 attached [pid 5091] set_robust_list(0x5555607a7660, 24 [pid 5090] <... write resumed>) = 4 [pid 5089] <... openat resumed>) = 3 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... clone resumed>, child_tidptr=0x5555607a7650) = 5092 [pid 5092] set_robust_list(0x5555607a7660, 24 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5090] close(3) = 0 [pid 5089] write(3, "1000", 4 [pid 5088] <... openat resumed>) = 3 [pid 5092] <... set_robust_list resumed>) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5090] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5089] <... write resumed>) = 4 [pid 5088] write(3, "1000", 4 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5091] <... prctl resumed>) = 0 [pid 5090] <... openat resumed>) = 3 [pid 5089] close(3 [pid 5088] <... write resumed>) = 4 [pid 5092] <... prctl resumed>) = 0 [pid 5091] setpgid(0, 0 [pid 5088] close(3 [pid 5092] setpgid(0, 0 [pid 5091] <... setpgid resumed>) = 0 [pid 5088] <... close resumed>) = 0 [pid 5092] <... setpgid resumed>) = 0 [pid 5090] close(3 [pid 5089] <... close resumed>) = 0 [pid 5090] <... close resumed>) = 0 [pid 5089] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5088] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [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 5090] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5089] <... openat resumed>) = 3 [pid 5092] <... openat resumed>) = 3 [pid 5090] <... openat resumed>) = 3 [pid 5089] close(3 [pid 5088] <... openat resumed>) = 3 [pid 5092] write(3, "1000", 4 [pid 5091] <... openat resumed>) = 3 [pid 5090] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5089] <... close resumed>) = 0 [pid 5092] <... write resumed>) = 4 [pid 5091] write(3, "1000", 4 [pid 5090] <... ioctl resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5088] close(3 [pid 5092] close(3 [pid 5091] <... write resumed>) = 4 [pid 5090] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5089] <... openat resumed>) = 3 [pid 5088] <... close resumed>) = 0 [pid 5092] <... close resumed>) = 0 [pid 5091] close(3 [pid 5090] <... ioctl resumed>) = 0 [pid 5089] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5088] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5092] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5091] <... close resumed>) = 0 [pid 5090] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5089] <... ioctl resumed>) = 0 [pid 5092] <... openat resumed>) = 3 [pid 5090] <... openat resumed>) = 4 [pid 5088] <... openat resumed>) = 3 [pid 5092] close(3 [pid 5091] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5089] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5088] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5092] <... close resumed>) = 0 [pid 5090] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5091] <... openat resumed>) = 3 [pid 5089] <... ioctl resumed>) = 0 [pid 5092] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5091] close(3 [pid 5090] <... ioctl resumed>) = 0 [pid 5089] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5088] <... ioctl resumed>) = 0 [pid 5092] <... openat resumed>) = 3 [pid 5091] <... close resumed>) = 0 [pid 5090] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5089] <... openat resumed>) = 4 [pid 5088] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5092] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5091] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5090] <... ioctl resumed>) = 0 [pid 5089] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5088] <... ioctl resumed>) = 0 [pid 5092] <... ioctl resumed>) = 0 [pid 5090] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5089] <... ioctl resumed>) = 0 [pid 5088] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5092] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5091] <... openat resumed>) = 3 [pid 5090] <... ioctl resumed>) = 0 [pid 5092] <... ioctl resumed>) = 0 [pid 5091] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5090] exit_group(0 [pid 5089] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5088] <... openat resumed>) = 4 [pid 5092] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5091] <... ioctl resumed>) = 0 [pid 5090] <... exit_group resumed>) = ? [pid 5089] <... ioctl resumed>) = 0 [pid 5088] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5092] <... openat resumed>) = 4 [pid 5091] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5089] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5088] <... ioctl resumed>) = 0 [pid 5092] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5091] <... ioctl resumed>) = 0 [pid 5090] +++ exited with 0 +++ [pid 5089] <... ioctl resumed>) = 0 [pid 5088] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5092] <... ioctl resumed>) = 0 [pid 5091] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5089] exit_group(0 [pid 5088] <... ioctl resumed>) = 0 [pid 5092] ioctl(4, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 5091] <... openat resumed>) = 4 [pid 5089] <... exit_group resumed>) = ? [pid 5088] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5092] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5091] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5092] <... ioctl resumed>) = 0 [pid 5091] <... ioctl resumed>) = 0 [pid 5088] <... ioctl resumed>) = 0 [pid 5092] exit_group(0 [pid 5091] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5088] exit_group(0 [pid 5091] <... ioctl resumed>) = 0 [pid 5092] <... exit_group resumed>) = ? [pid 5091] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5089] +++ exited with 0 +++ [pid 5088] <... exit_group resumed>) = ? [pid 5068] <... restart_syscall resumed>) = 0 [pid 5092] +++ exited with 0 +++ [pid 5091] <... ioctl resumed>) = 0 [pid 5088] +++ exited with 0 +++ [pid 5091] exit_group(0 [pid 5075] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5091] <... exit_group resumed>) = ? [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5075] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... restart_syscall resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached ./strace-static-x86_64: Process 5094 attached [pid 5075] <... clone resumed>, child_tidptr=0x5555607a7650) = 5093 [pid 5068] <... clone resumed>, child_tidptr=0x5555607a7650) = 5094 [pid 5093] set_robust_list(0x5555607a7660, 24 [pid 5094] set_robust_list(0x5555607a7660, 24 [pid 5091] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5093] <... set_robust_list resumed>) = 0 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5095 attached [pid 5070] <... restart_syscall resumed>) = 0 [pid 5095] set_robust_list(0x5555607a7660, 24 [pid 5071] <... clone resumed>, child_tidptr=0x5555607a7650) = 5095 [pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] <... set_robust_list resumed>) = 0 [pid 5093] <... prctl resumed>) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5093] setpgid(0, 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] setpgid(0, 0 [pid 5093] <... setpgid resumed>) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] <... setpgid resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5097 attached ./strace-static-x86_64: Process 5096 attached ) = 3 [pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5094] <... prctl resumed>) = 0 [pid 5094] setpgid(0, 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555607a7650) = 5096 [pid 5094] <... setpgid resumed>) = 0 [pid 5096] set_robust_list(0x5555607a7660, 24 [pid 5095] write(3, "1000", 4 [pid 5093] <... openat resumed>) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x5555607a7650) = 5097 [pid 5097] set_robust_list(0x5555607a7660, 24 [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] <... write resumed>) = 4 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5097] <... set_robust_list resumed>) = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] close(3 [pid 5093] write(3, "1000", 4 [pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5096] <... prctl resumed>) = 0 [pid 5095] <... close resumed>) = 0 [pid 5093] <... write resumed>) = 4 [pid 5097] <... prctl resumed>) = 0 [pid 5096] setpgid(0, 0 [pid 5095] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5093] close(3 [pid 5094] <... openat resumed>) = 3 [pid 5097] setpgid(0, 0 [pid 5096] <... setpgid resumed>) = 0 [pid 5095] <... openat resumed>) = 3 [pid 5093] <... close resumed>) = 0 [pid 5094] write(3, "1000", 4 [pid 5097] <... setpgid resumed>) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] close(3 [pid 5093] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5094] <... write resumed>) = 4 [pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5095] <... close resumed>) = 0 [pid 5094] close(3 [pid 5096] <... openat resumed>) = 3 [pid 5095] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5093] <... openat resumed>) = 3 [pid 5094] <... close resumed>) = 0 [pid 5097] <... openat resumed>) = 3 [pid 5096] write(3, "1000", 4 [pid 5095] <... openat resumed>) = 3 [pid 5096] <... write resumed>) = 4 [pid 5093] close(3 [pid 5094] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5097] write(3, "1000", 4 [pid 5096] close(3 [pid 5095] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5093] <... close resumed>) = 0 [pid 5097] <... write resumed>) = 4 [pid 5096] <... close resumed>) = 0 [pid 5095] <... ioctl resumed>) = 0 [pid 5093] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5094] <... openat resumed>) = 3 [pid 5097] close(3 [pid 5096] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5095] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5096] <... openat resumed>) = 3 [pid 5095] <... ioctl resumed>) = 0 [pid 5093] <... openat resumed>) = 3 [pid 5095] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5093] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5094] close(3 [pid 5097] <... close resumed>) = 0 [pid 5096] close(3 [pid 5095] <... openat resumed>) = 4 [pid 5093] <... ioctl resumed>) = 0 [pid 5094] <... close resumed>) = 0 [pid 5097] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5096] <... close resumed>) = 0 [pid 5093] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5094] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5096] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5095] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5094] <... openat resumed>) = 3 [pid 5096] <... openat resumed>) = 3 [pid 5095] <... ioctl resumed>) = 0 [pid 5093] <... ioctl resumed>) = 0 [pid 5097] <... openat resumed>) = 3 [pid 5096] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5095] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5093] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5094] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5097] close(3 [pid 5096] <... ioctl resumed>) = 0 [pid 5095] <... ioctl resumed>) = 0 [pid 5093] <... openat resumed>) = 4 [pid 5094] <... ioctl resumed>) = 0 [pid 5096] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5095] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5097] <... close resumed>) = 0 [pid 5096] <... ioctl resumed>) = 0 [pid 5093] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5094] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440 [pid 5097] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5096] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5095] <... ioctl resumed>) = 0 [pid 5093] <... ioctl resumed>) = 0 [pid 5094] <... ioctl resumed>) = 0 [pid 5096] <... openat resumed>) = 4 [pid 5095] exit_group(0 [pid 5096] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5093] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5094] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 5093] <... ioctl resumed>) = 0 [pid 5096] <... ioctl resumed>) = 0 [pid 5095] <... exit_group resumed>) = ? [pid 5094] <... openat resumed>) = 4 [pid 5097] <... openat resumed>) = 3 [pid 5096] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 5093] ioctl(3, SNDRV_TIMER_IOCTL_CONTINUE, 0 [pid 5094] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5097] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 5096] <... ioctl resumed>) = 0 [pid 5093] <... ioctl resumed>) = 0 [pid 5093] exit_group(0) = ? [ 163.803092][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 163.810225][ C1] rcu: 0-...!: (1 GPs behind) idle=77bc/1/0x4000000000000000 softirq=5151/5152 fqs=0 [ 163.820253][ C1] rcu: (detected by 1, t=10502 jiffies, g=5041, q=6 ncpus=2) [ 163.827714][ C1] Sending NMI from CPU 1 to CPUs 0: [ 163.832923][ C0] NMI backtrace for cpu 0 [ 163.832934][ C0] CPU: 0 PID: 5095 Comm: syz-executor202 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0 [ 163.832950][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 163.832958][ C0] RIP: 0010:rcu_is_watching+0x2e/0xb0 [ 163.832994][ C0] Code: 41 57 41 56 53 65 ff 05 78 66 88 7e e8 eb e6 f8 09 89 c3 83 f8 08 73 7a 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd d0 e9 b0 8d <4c> 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 2c da 7c 00 [ 163.833005][ C0] RSP: 0018:ffffc90000007b60 EFLAGS: 00000093 [ 163.833020][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8171c080 [ 163.833030][ C0] RDX: 0000000000000000 RSI: ffffffff8bfed340 RDI: ffffffff8bfed300 [ 163.833040][ C0] RBP: ffffc90000007cb8 R08: ffffffff8f872cef R09: 1ffffffff1f0e59d [ 163.833052][ C0] R10: dffffc0000000000 R11: fffffbfff1f0e59e R12: 1ffff92000000f7c [ 163.833063][ C0] R13: ffffffff8903fb46 R14: ffffffff8db0e9d0 R15: dffffc0000000000 [ 163.833074][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 163.833087][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 163.833097][ C0] CR2: 00007efcbdc3f130 CR3: 000000001e308000 CR4: 00000000003506f0 [ 163.833111][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 163.833119][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 163.833129][ C0] Call Trace: [ 163.833141][ C0] [ 163.833149][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 163.833169][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 163.833186][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 163.833200][ C0] ? nmi_handle+0x2a/0x580 [ 163.833223][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 163.833240][ C0] ? nmi_handle+0x14f/0x580 [ 163.833254][ C0] ? nmi_handle+0x2a/0x580 [ 163.833269][ C0] ? rcu_is_watching+0x2e/0xb0 [ 163.833284][ C0] ? default_do_nmi+0x63/0x160 [ 163.833300][ C0] ? exc_nmi+0x123/0x1f0 [ 163.833314][ C0] ? end_repeat_nmi+0xf/0x53 [ 163.833330][ C0] ? snd_hrtimer_callback+0x2d6/0x380 [ 163.833356][ C0] ? lock_release+0xb0/0x9d0 [ 163.833371][ C0] ? rcu_is_watching+0x2e/0xb0 [ 163.833387][ C0] ? rcu_is_watching+0x2e/0xb0 [ 163.833403][ C0] ? rcu_is_watching+0x2e/0xb0 [ 163.833418][ C0] [ 163.833423][ C0] [ 163.833428][ C0] lock_release+0xbf/0x9d0 [ 163.833444][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 163.833460][ C0] ? __pfx_lock_release+0x10/0x10 [ 163.833474][ C0] ? do_raw_spin_lock+0x14f/0x370 [ 163.833498][ C0] ? snd_timer_interrupt+0xf8b/0x10d0 [ 163.833518][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 163.833540][ C0] _raw_spin_unlock+0x16/0x50 [ 163.833559][ C0] snd_hrtimer_callback+0x2d6/0x380 [ 163.833583][ C0] ? __pfx_snd_hrtimer_callback+0x10/0x10 [ 163.833603][ C0] __hrtimer_run_queues+0x595/0xd00 [ 163.833631][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 163.833648][ C0] ? ktime_get_update_offsets_now+0x411/0x430 [ 163.833668][ C0] hrtimer_interrupt+0x396/0x990 [ 163.833723][ C0] __sysvec_apic_timer_interrupt+0x107/0x3a0 [ 163.833748][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 163.833767][ C0] [ 163.833772][ C0] [ 163.833777][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 163.833793][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 [ 163.833813][ C0] Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 fe 49 79 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 a3 f1 e5 f5 65 8b 05 f4 d5 84 74 85 c0 74 43 48 c7 04 24 0e 36 [ 163.833824][ C0] RSP: 0018:ffffc90003aef940 EFLAGS: 00000206 [ 163.833837][ C0] RAX: 79cf45b4635bff00 RBX: 1ffff9200075df2c RCX: ffffffff81720c2a [ 163.833848][ C0] RDX: dffffc0000000000 RSI: ffffffff8baac1e0 RDI: 0000000000000001 [ 163.833859][ C0] RBP: ffffc90003aef9d0 R08: ffffffff92ce1587 R09: 1ffffffff259c2b0 [ 163.833870][ C0] R10: dffffc0000000000 R11: fffffbfff259c2b1 R12: dffffc0000000000 [ 163.833881][ C0] R13: 1ffff9200075df28 R14: ffffc90003aef960 R15: 0000000000000246 [ 163.833896][ C0] ? mark_lock+0x9a/0x350 [ 163.833914][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 163.833939][ C0] snd_timer_stop1+0x7d9/0x930 [ 163.833963][ C0] snd_timer_close_locked+0x217/0x8c0 [ 163.833981][ C0] ? __fsnotify_parent+0x20c/0x5e0 [ 163.833999][ C0] snd_timer_user_release+0x129/0x2d0 [ 163.834020][ C0] ? __pfx_snd_timer_user_release+0x10/0x10 [ 163.834040][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 163.834055][ C0] ? evm_file_release+0x140/0x1d0 [ 163.834071][ C0] ? __pfx_snd_timer_user_release+0x10/0x10 [ 163.834091][ C0] __fput+0x429/0x8a0 [ 163.834112][ C0] task_work_run+0x24f/0x310 [ 163.834138][ C0] ? __pfx_task_work_run+0x10/0x10 [ 163.834159][ C0] ? switch_task_namespaces+0xe1/0x110 [ 163.834174][ C0] do_exit+0xa1b/0x27e0 [ 163.834196][ C0] ? __pfx_do_exit+0x10/0x10 [ 163.834214][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 163.834230][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 163.834248][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 163.834265][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 163.834284][ C0] do_group_exit+0x207/0x2c0 [ 163.834304][ C0] __x64_sys_exit_group+0x3f/0x40 [ 163.834322][ C0] do_syscall_64+0xfb/0x240 [ 163.834344][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 163.834359][ C0] RIP: 0033:0x7efcbdbc2df9 [ 163.834371][ C0] Code: Unable to access opcode bytes at 0x7efcbdbc2dcf. [ 163.834379][ C0] RSP: 002b:00007ffc276a9d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 163.834393][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efcbdbc2df9 [ 163.834403][ C0] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 163.834412][ C0] RBP: 00007efcbdc3e2b0 R08: ffffffffffffffb8 R09: 00000000000000a0 [ 163.834423][ C0] R10: 00000000000000a0 R11: 0000000000000246 R12: 00007efcbdc3e2b0 [ 163.834432][ C0] R13: 0000000000000000 R14: 00007efcbdc3ed20 R15: 00007efcbdb93fa0 [ 163.834450][ C0] [ 163.834457][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.534 msecs [ 163.834918][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g5041 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 164.428746][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 164.438718][ C1] rcu: RCU grace-period kthread stack dump: [ 164.444601][ C1] task:rcu_preempt state:R running task stack:24656 pid:16 tgid:16 ppid:2 flags:0x00004000 [ 164.456347][ C1] Call Trace: [ 164.459639][ C1] [ 164.462584][ C1] __schedule+0x17d3/0x4a20 [ 164.467138][ C1] ? __pfx___schedule+0x10/0x10 [ 164.472000][ C1] ? __pfx_lock_release+0x10/0x10 [ 164.477027][ C1] ? __asan_memset+0x23/0x50 [ 164.481630][ C1] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 164.487441][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 164.493775][ C1] ? schedule+0x90/0x320 [ 164.498023][ C1] schedule+0x14b/0x320 [ 164.502190][ C1] schedule_timeout+0x1be/0x310 [ 164.507046][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 164.512425][ C1] ? __pfx_process_timeout+0x10/0x10 [ 164.517721][ C1] ? prepare_to_swait_event+0x32e/0x350 [ 164.523283][ C1] rcu_gp_fqs_loop+0x2df/0x1370 [ 164.528135][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 164.533365][ C1] ? __pfx_rcu_gp_init+0x10/0x10 [ 164.538329][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 164.543541][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 164.548834][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 164.554751][ C1] ? finish_swait+0xd4/0x1e0 [ 164.559362][ C1] rcu_gp_kthread+0xa7/0x3b0 [ 164.563973][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 164.569193][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 164.575101][ C1] ? __kthread_parkme+0x169/0x1d0 [ 164.580139][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 164.585347][ C1] kthread+0x2f0/0x390 [ 164.589424][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 164.594651][ C1] ? __pfx_kthread+0x10/0x10 [ 164.599253][ C1] ret_from_fork+0x4b/0x80 [ 164.603681][ C1] ? __pfx_kthread+0x10/0x10 [ 164.608281][ C1] ret_from_fork_asm+0x1a/0x30 [ 164.613074][ C1] [ 164.616094][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 164.622416][ C1] CPU: 1 PID: 10 Comm: kworker/u8:0 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0 [ 164.632045][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 164.642104][ C1] Workqueue: events_unbound toggle_allocation_gate [ 164.648622][ C1] RIP: 0010:smp_call_function_many_cond+0x1850/0x2960 [ 164.655394][ C1] Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 d9 d5 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 84 d1 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 68 d1 [ 164.675005][ C1] RSP: 0018:ffffc900000f76e0 EFLAGS: 00000293 [ 164.681085][ C1] RAX: ffffffff818923e8 RBX: 1ffff11017288be5 RCX: ffff888016ea9e00 [ 164.689064][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 164.697036][ C1] RBP: ffffc900000f78e0 R08: ffffffff818923b7 R09: 1ffffffff259c2a0 [ 164.705015][ C1] R10: dffffc0000000000 R11: fffffbfff259c2a1 R12: dffffc0000000000 [ 164.712994][ C1] R13: ffff8880b9445f28 R14: ffff8880b953f480 R15: 0000000000000000 [ 164.720969][ C1] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 164.729899][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 164.736487][ C1] CR2: 00007efcbdc3f130 CR3: 000000000df32000 CR4: 00000000003506f0 [ 164.744472][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 164.752449][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 164.760421][ C1] Call Trace: [ 164.763703][ C1] [ 164.766551][ C1] ? rcu_check_gp_kthread_starvation+0x278/0x310 [ 164.772897][ C1] ? print_other_cpu_stall+0x14a4/0x15e0 [ 164.778538][ C1] ? get_jiffies_update+0x44/0x150 [ 164.783676][ C1] ? __pfx_print_other_cpu_stall+0x10/0x10 [ 164.789492][ C1] ? seqcount_lockdep_reader_access+0x1c6/0x220 [ 164.795750][ C1] ? kvm_check_and_clear_guest_paused+0x6a/0xd0 [ 164.801998][ C1] ? rcu_sched_clock_irq+0x9f4/0x10a0 [ 164.807388][ C1] ? __pfx_rcu_sched_clock_irq+0x10/0x10 [ 164.813027][ C1] ? hrtimer_run_queues+0x16c/0x460 [ 164.818240][ C1] ? acct_account_cputime+0x207/0x210 [ 164.823634][ C1] ? update_process_times+0x1ce/0x230 [ 164.829012][ C1] ? tick_nohz_handler+0x39e/0x540 [ 164.834141][ C1] ? __pfx_tick_nohz_handler+0x10/0x10 [ 164.839610][ C1] ? __hrtimer_run_queues+0x54b/0xd00 [ 164.845006][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 164.850734][ C1] ? ktime_get_update_offsets_now+0x411/0x430 [ 164.856816][ C1] ? hrtimer_interrupt+0x396/0x990 [ 164.861957][ C1] ? __sysvec_apic_timer_interrupt+0x107/0x3a0 [ 164.868122][ C1] ? sysvec_apic_timer_interrupt+0xa1/0xc0 [ 164.873937][ C1] [ 164.877049][ C1] [ 164.879983][ C1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 164.886146][ C1] ? smp_call_function_many_cond+0x1837/0x2960 [ 164.892306][ C1] ? smp_call_function_many_cond+0x1868/0x2960 [ 164.898468][ C1] ? smp_call_function_many_cond+0x1850/0x2960 [ 164.904641][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 164.909677][ C1] ? __pfx_text_poke_memcpy+0x10/0x10 [ 164.915060][ C1] ? __pfx___text_poke+0x10/0x10 [ 164.920000][ C1] ? process_scheduled_works+0x91b/0x1770 [ 164.925739][ C1] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 164.932073][ C1] ? __pfx___might_resched+0x10/0x10 [ 164.937366][ C1] ? __mutex_trylock_common+0x183/0x2e0 [ 164.942920][ C1] ? __pfx___might_resched+0x10/0x10 [ 164.948213][ C1] ? __pfx_do_sync_core+0x10/0x10 [ 164.953249][ C1] on_each_cpu_cond_mask+0x3f/0x80 [ 164.958372][ C1] text_poke_bp_batch+0x352/0xb30 [ 164.963418][ C1] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 164.968974][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 164.974008][ C1] ? arch_jump_label_transform_queue+0x9b/0x100 [ 164.980266][ C1] ? process_scheduled_works+0x91b/0x1770 [ 164.985991][ C1] text_poke_finish+0x30/0x50 [ 164.990676][ C1] arch_jump_label_transform_apply+0x1c/0x30 [ 164.996664][ C1] static_key_enable_cpuslocked+0x136/0x260 [ 165.002566][ C1] static_key_enable+0x1a/0x20 [ 165.008116][ C1] toggle_allocation_gate+0xb5/0x250 [ 165.013418][ C1] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 165.019582][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 165.025928][ C1] process_scheduled_works+0xa00/0x1770 [ 165.031516][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 165.037509][ C1] ? assign_work+0x364/0x3d0 [ 165.042107][ C1] worker_thread+0x86d/0xd70 [ 165.046755][ C1] ? __kthread_parkme+0x169/0x1d0 [ 165.051788][ C1] ? __pfx_worker_thread+0x10/0x10 [ 165.056903][ C1] kthread+0x2f0/0x390 [ 165.060980][ C1] ? __pfx_worker_thread+0x10/0x10 [ 165.066096][ C1] ? __pfx_kthread+0x10/0x10 [ 165.070692][ C1] ret_from_fork+0x4b/0x80 [ 165.075117][ C1] ? __pfx_kthread+0x10/0x10 [ 165.079712][ C1] ret_from_fork_asm+0x1a/0x30 [ 165.084497][ C1]