./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1301257682 <...> Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. execve("./syz-executor1301257682", ["./syz-executor1301257682"], 0x7ffd68e1c430 /* 10 vars */) = 0 brk(NULL) = 0x5555559c1000 brk(0x5555559c1c40) = 0x5555559c1c40 arch_prctl(ARCH_SET_FS, 0x5555559c1300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1301257682", 4096) = 28 brk(0x5555559e2c40) = 0x5555559e2c40 brk(0x5555559e3000) = 0x5555559e3000 mprotect(0x7f780fbce000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5076 attached , child_tidptr=0x5555559c15d0) = 5076 [pid 5076] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setsid() = 1 [pid 5076] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5076] unshare(CLONE_NEWNS) = 0 [pid 5076] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5076] unshare(CLONE_NEWIPC) = 0 [pid 5076] unshare(CLONE_NEWCGROUP) = 0 [pid 5076] unshare(CLONE_NEWUTS) = 0 [pid 5076] unshare(CLONE_SYSVSEM) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "16777216", 8) = 8 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "536870912", 9) = 9 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "8192", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5076] close(3) = 0 [pid 5076] getpid() = 1 [pid 5076] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5080] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5079] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 7 [pid 5076] clone(child_stack=0x20000040, flags=128) = 8 [pid 5076] clone(child_stack=0x20000040, flags=128) = 9 [pid 5076] clone(child_stack=0x20000040, flags=128) = 10 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5085 attached [pid 5085] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 11 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5086 attached [pid 5086] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5081] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5082] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 52.831184][ T5076] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5076 'syz-executor130' [ 52.850681][ T5076] loop0: detected capacity change from 0 to 1024 ./strace-static-x86_64: Process 5084 attached [pid 5084] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5083] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 5087 attached [pid 5081] +++ killed by SIGSEGV (core dumped) +++ ./strace-static-x86_64: Process 5088 attached [pid 5087] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 12 [pid 5076] clone(child_stack=0x20000040, flags=128 [pid 5088] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5085] +++ killed by SIGSEGV +++ ./strace-static-x86_64: Process 5089 attached [pid 5089] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 13 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5090 attached [pid 5090] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 14 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5091 attached [pid 5091] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 15 [pid 5076] clone(child_stack=0x20000040, flags=128) = 16 [pid 5076] clone(child_stack=0x20000040, flags=128) = 17 [pid 5076] clone(child_stack=0x20000040, flags=128) = 18 [pid 5076] clone(child_stack=0x20000040, flags=128) = 19 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5094 attached [pid 5094] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 20 [pid 5076] clone(child_stack=0x20000040, flags=128) = 21 ./strace-static-x86_64: Process 5096 attached [pid 5076] clone(child_stack=0x20000040, flags=128 [pid 5096] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 22 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5098 attached [pid 5098] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 5099 attached [pid 5099] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 23 [pid 5076] clone(child_stack=0x20000040, flags=128) = 24 [pid 5076] clone(child_stack=0x20000040, flags=128) = 25 [pid 5076] clone(child_stack=0x20000040, flags=128) = 26 [pid 5076] clone(child_stack=0x20000040, flags=128) = 27 [ 52.969547][ T5088] [ 52.971916][ T5088] ====================================================== [ 52.978935][ T5088] WARNING: possible circular locking dependency detected [ 52.985975][ T5088] 6.2.0-rc2-next-20230105-syzkaller #0 Not tainted [ 52.992489][ T5088] ------------------------------------------------------ [ 52.999519][ T5088] syz-executor130/5088 is trying to acquire lock: [ 53.005943][ T5088] ffff88807a7907c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1bf/0xf60 [ 53.016969][ T5088] [pid 5076] clone(child_stack=0x20000040, flags=128) = 28 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5102 attached [pid 5102] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 5103 attached [pid 5103] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 29 [pid 5076] clone(child_stack=0x20000040, flags=128) = 30 [pid 5076] clone(child_stack=0x20000040, flags=128) = 31 [pid 5076] clone(child_stack=0x20000040, flags=128./strace-static-x86_64: Process 5105 attached [pid 5105] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5076] <... clone resumed>) = 32 [pid 5076] clone(child_stack=0x20000040, flags=128) = 33 [pid 5076] clone(child_stack=0x20000040, flags=128) = 34 [pid 5076] exit_group(1) = ? ./strace-static-x86_64: Process 5108 attached [pid 5108] +++ killed by SIGKILL +++ ./strace-static-x86_64: Process 5107 attached [pid 5107] +++ killed by SIGKILL +++ ./strace-static-x86_64: Process 5110 attached [pid 5110] +++ killed by SIGKILL +++ ./strace-static-x86_64: Process 5111 attached [pid 5111] +++ killed by SIGKILL +++ [ 53.016969][ T5088] but task is already holding lock: [ 53.024347][ T5088] ffff88807a7ca0b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x1bb/0x230 [ 53.033878][ T5088] [ 53.033878][ T5088] which lock already depends on the new lock. [ 53.033878][ T5088] [ 53.044302][ T5088] [ 53.044302][ T5088] the existing dependency chain (in reverse order) is: [ 53.053319][ T5088] [ 53.053319][ T5088] -> #1 (&tree->tree_lock){+.+.}-{3:3}: [ 53.061072][ T5088] __mutex_lock+0x12f/0x1360 [ 53.066207][ T5088] hfsplus_file_truncate+0xe87/0x10d0 [ 53.072118][ T5088] hfsplus_delete_inode+0x191/0x220 [ 53.077851][ T5088] hfsplus_unlink+0x5a6/0x830 [ 53.083063][ T5088] vfs_unlink+0x355/0x930 [ 53.087927][ T5088] do_unlinkat+0x3b7/0x640 [ 53.092878][ T5088] __x64_sys_unlinkat+0xc1/0x130 [ 53.098365][ T5088] do_syscall_64+0x39/0xb0 [ 53.103315][ T5088] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.109734][ T5088] [ 53.109734][ T5088] -> #0 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}: [ 53.118789][ T5088] __lock_acquire+0x2a43/0x56d0 [ 53.124172][ T5088] lock_acquire.part.0+0x11a/0x350 [ 53.129811][ T5088] __mutex_lock+0x12f/0x1360 [ 53.134926][ T5088] hfsplus_file_extend+0x1bf/0xf60 [ 53.140574][ T5088] hfsplus_bmap_reserve+0x31c/0x410 [ 53.146311][ T5088] hfsplus_rename_cat+0x271/0x1270 [ 53.151966][ T5088] hfsplus_unlink+0x4ad/0x830 [ 53.157180][ T5088] vfs_unlink+0x355/0x930 [ 53.162055][ T5088] do_unlinkat+0x3b7/0x640 [ 53.167010][ T5088] do_coredump+0x10b9/0x3ca0 [ 53.172142][ T5088] get_signal+0x1c08/0x24f0 [ 53.177175][ T5088] arch_do_signal_or_restart+0x79/0x5c0 [ 53.183252][ T5088] exit_to_user_mode_prepare+0x15f/0x250 [ 53.189446][ T5088] irqentry_exit_to_user_mode+0x9/0x40 [ 53.195437][ T5088] exc_page_fault+0xc0/0x170 [ 53.200556][ T5088] asm_exc_page_fault+0x26/0x30 [ 53.205950][ T5088] [ 53.205950][ T5088] other info that might help us debug this: [ 53.205950][ T5088] [ 53.216180][ T5088] Possible unsafe locking scenario: [ 53.216180][ T5088] [ 53.223630][ T5088] CPU0 CPU1 [ 53.228992][ T5088] ---- ---- [ 53.234352][ T5088] lock(&tree->tree_lock); [ 53.238867][ T5088] lock(&HFSPLUS_I(inode)->extents_lock); [ 53.247204][ T5088] lock(&tree->tree_lock); [ 53.254235][ T5088] lock(&HFSPLUS_I(inode)->extents_lock); [ 53.260043][ T5088] [ 53.260043][ T5088] *** DEADLOCK *** [ 53.260043][ T5088] [ 53.268179][ T5088] 5 locks held by syz-executor130/5088: [ 53.273724][ T5088] #0: ffff888028f4e460 (sb_writers#9){.+.+}-{0:0}, at: do_unlinkat+0x183/0x640 [ 53.282818][ T5088] #1: ffff88807a791e00 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: do_unlinkat+0x270/0x640 [ 53.293130][ T5088] #2: ffff8880793a9080 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: vfs_unlink+0xd9/0x930 [ 53.303352][ T5088] #3: ffff88807a74e198 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_unlink+0x151/0x830 [ 53.312866][ T5088] #4: ffff88807a7ca0b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x1bb/0x230 [ 53.322803][ T5088] [ 53.322803][ T5088] stack backtrace: [ 53.328683][ T5088] CPU: 1 PID: 5088 Comm: syz-executor130 Not tainted 6.2.0-rc2-next-20230105-syzkaller #0 [ 53.338577][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 53.348631][ T5088] Call Trace: [ 53.351913][ T5088] [ 53.354842][ T5088] dump_stack_lvl+0xd1/0x138 [ 53.359448][ T5088] check_noncircular+0x25f/0x2e0 [ 53.364393][ T5088] ? register_lock_class+0xbe/0x1120 [ 53.369685][ T5088] ? print_circular_bug+0x1e0/0x1e0 [ 53.374891][ T5088] ? mark_lock.part.0+0xee/0x1910 [ 53.379924][ T5088] ? mark_lock.part.0+0xee/0x1910 [ 53.384956][ T5088] __lock_acquire+0x2a43/0x56d0 [ 53.389819][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.395821][ T5088] ? is_bpf_text_address+0x4/0x1b0 [ 53.400956][ T5088] ? lock_acquire+0x32/0xc0 [ 53.405480][ T5088] ? is_bpf_text_address+0x4/0x1b0 [ 53.410618][ T5088] ? is_bpf_text_address+0x9d/0x1b0 [ 53.415838][ T5088] lock_acquire.part.0+0x11a/0x350 [ 53.420976][ T5088] ? hfsplus_file_extend+0x1bf/0xf60 [ 53.426281][ T5088] ? lock_release+0x810/0x810 [ 53.430961][ T5088] ? hfsplus_file_extend+0x1bf/0xf60 [ 53.436261][ T5088] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.441811][ T5088] ? trace_lock_acquire+0x1f1/0x290 [ 53.447015][ T5088] ? hfsplus_file_extend+0x1bf/0xf60 [ 53.452317][ T5088] ? lock_acquire+0x32/0xc0 [ 53.456830][ T5088] ? hfsplus_file_extend+0x1bf/0xf60 [ 53.462134][ T5088] __mutex_lock+0x12f/0x1360 [ 53.466734][ T5088] ? hfsplus_file_extend+0x1bf/0xf60 [ 53.472036][ T5088] ? hfsplus_file_extend+0x1bf/0xf60 [ 53.477341][ T5088] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 53.482895][ T5088] ? lock_release+0x810/0x810 [ 53.487576][ T5088] ? hfsplus_find_init+0x1bb/0x230 [ 53.492698][ T5088] hfsplus_file_extend+0x1bf/0xf60 [ 53.497826][ T5088] ? __mutex_lock+0x231/0x1360 [ 53.502597][ T5088] ? hfsplus_free_fork+0x7d0/0x7d0 [ 53.507725][ T5088] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 53.513285][ T5088] hfsplus_bmap_reserve+0x31c/0x410 [ 53.518502][ T5088] hfsplus_rename_cat+0x271/0x1270 [ 53.523633][ T5088] ? exc_page_fault+0xc0/0x170 [ 53.528401][ T5088] ? asm_exc_page_fault+0x26/0x30 [ 53.533432][ T5088] ? lock_chain_count+0x20/0x20 [ 53.538291][ T5088] ? hfsplus_delete_cat+0xe40/0xe40 [ 53.543506][ T5088] ? __lock_acquire+0x166e/0x56d0 [ 53.548545][ T5088] ? number+0x7e3/0xad0 [ 53.552716][ T5088] ? find_held_lock+0x2d/0x110 [ 53.557496][ T5088] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 53.563408][ T5088] ? put_dec+0xd0/0xd0 [ 53.567502][ T5088] ? fill_ptr_key+0x30/0x30 [ 53.572033][ T5088] ? lock_release+0x810/0x810 [ 53.576745][ T5088] ? hfsplus_unlink+0x151/0x830 [ 53.581628][ T5088] ? vsnprintf+0x4cd/0x16b0 [ 53.586153][ T5088] ? pointer+0xc50/0xc50 [ 53.590409][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.596398][ T5088] ? hfsplus_compare_dentry+0x8b2/0xa40 [ 53.601949][ T5088] ? hfsplus_unlink+0x151/0x830 [ 53.606820][ T5088] ? sprintf+0xc4/0x100 [ 53.610993][ T5088] ? snprintf+0x100/0x100 [ 53.615344][ T5088] hfsplus_unlink+0x4ad/0x830 [ 53.620039][ T5088] ? hfsplus_symlink+0x2e0/0x2e0 [ 53.624994][ T5088] ? down_write_killable_nested+0x250/0x250 [ 53.630900][ T5088] vfs_unlink+0x355/0x930 [ 53.635249][ T5088] ? bpf_lsm_path_unlink+0x9/0x10 [ 53.640288][ T5088] do_unlinkat+0x3b7/0x640 [ 53.644726][ T5088] ? __ia32_sys_rmdir+0x110/0x110 [ 53.649769][ T5088] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.655325][ T5088] ? kmem_cache_alloc+0x1c5/0x320 [ 53.660356][ T5088] ? memcpy+0x3d/0x60 [ 53.664353][ T5088] do_coredump+0x10b9/0x3ca0 [ 53.668955][ T5088] ? lock_downgrade+0x6e0/0x6e0 [ 53.673816][ T5088] ? dump_emit+0x340/0x340 [ 53.678299][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.684288][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.690278][ T5088] ? mark_held_locks+0x9f/0xe0 [ 53.695055][ T5088] ? find_held_lock+0x2d/0x110 [ 53.699839][ T5088] ? virtio_gpu_plane_atomic_check+0x190/0x200 [ 53.706015][ T5088] ? _raw_spin_unlock_irq+0x23/0x50 [ 53.711228][ T5088] get_signal+0x1c08/0x24f0 [ 53.715748][ T5088] ? exit_signals+0x910/0x910 [ 53.720432][ T5088] ? force_sig+0xe0/0xe0 [ 53.724680][ T5088] ? pgtable_bad+0x90/0x90 [ 53.729116][ T5088] arch_do_signal_or_restart+0x79/0x5c0 [ 53.734675][ T5088] ? get_sigframe_size+0x10/0x10 [ 53.739624][ T5088] ? trace_hardirqs_off+0x12/0x170 [ 53.744747][ T5088] ? __bad_area+0x5f/0xa0 [ 53.749096][ T5088] exit_to_user_mode_prepare+0x15f/0x250 [ 53.754739][ T5088] irqentry_exit_to_user_mode+0x9/0x40 [ 53.760207][ T5088] exc_page_fault+0xc0/0x170 [ 53.764805][ T5088] asm_exc_page_fault+0x26/0x30 [ 53.769667][ T5088] RIP: 0033:0x0 [ 53.773132][ T5088] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 53.780503][ T5088] RSP: 002b:0000000020000048 EFLAGS: 00010217 [ 53.786577][ T5088] RAX: 0000000000000000 RBX: 0000000000000018 RCX: 00007f780fb5ff49 [ 53.794550][ T5088] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000080 [ 53.802524][ T5088] RBP: 00007fffca872358 R08: 0000000000000000 R09: 00007f780fbcee40 [ 53.810500][ T5088] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffca872360 ./strace-static-x86_64: Process 5092 attached [pid 5092] +++ killed by SIGKILL +++ ./strace-static-x86_64: Process 5093 attached ./strace-static-x86_64: Process 5097 attached ./strace-static-x86_64: Process 5095 attached [pid 5097] +++ killed by SIGKILL +++ ./strace-static-x86_64: Process 5100 attached ./strace-static-x86_64: Process 5101 attached ./strace-static-x86_64: Process 5106 attached ./strace-static-x86_64: Process 5109 attached ./strace-static-x86_64: Process 5104 attached [pid 5100] +++ killed by SIGKILL +++ [pid 5106] +++ killed by SIGKILL +++ [pid 5101] +++ killed by SIGKILL +++ [pid 5109] +++ killed by SIGKILL +++ [pid 5104] +++ killed by SIGKILL +++ [pid 5088] +++ killed by SIGKILL +++ [pid 5082] +++ killed by SIGSEGV (core dumped) +++ [pid 5095] +++ killed by SIGKILL +++ [pid 5105] +++ killed by SIGKILL +++ [pid 5103] +++ killed by SIGKILL +++ [pid 5102] +++ killed by SIGKILL +++ [pid 5099] +++ killed by SIGKILL +++ [pid 5098] +++ killed by SIGKILL +++ [pid 5096] +++ killed by SIGKILL +++ [pid 5094] +++ killed by SIGKILL +++ [pid 5091] +++ killed by SIGKILL +++ [pid 5090] +++ killed by SIGKILL +++ [pid 5089] +++ killed by SIGKILL +++ [pid 5084] +++ killed by SIGKILL +++ [pid 5086] +++ killed by SIGSEGV (core dumped) +++ [pid 5083] +++ killed by SIGSEGV (core dumped) +++ [pid 5079] +++ killed by SIGSEGV (core dumped) +++ [pid 5093] +++ killed by SIGKILL +++ [ 53.818474][ T5088] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.826460][ T5088] [pid 5080] +++ killed by SIGKILL +++ [pid 5087] +++ killed by SIGKILL +++ [pid 5076] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=1, si_utime=0, si_stime=10 /* 0.10 s */} --- exit_group(0) = ? +++ exited with 0 +++