./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor779965203 <...> Warning: Permanently added '10.128.0.139' (ECDSA) to the list of known hosts. execve("./syz-executor779965203", ["./syz-executor779965203"], 0x7fff9fba8430 /* 10 vars */) = 0 brk(NULL) = 0x555556b33000 brk(0x555556b33c40) = 0x555556b33c40 arch_prctl(ARCH_SET_FS, 0x555556b33300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor779965203", 4096) = 27 brk(0x555556b54c40) = 0x555556b54c40 brk(0x555556b55000) = 0x555556b55000 mprotect(0x7f2bb417b000, 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 3616 attached , child_tidptr=0x555556b335d0) = 3616 [pid 3616] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setsid() = 1 [pid 3616] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3616] unshare(CLONE_NEWNS) = 0 [pid 3616] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3616] unshare(CLONE_NEWIPC) = 0 [pid 3616] unshare(CLONE_NEWCGROUP) = 0 [pid 3616] unshare(CLONE_NEWUTS) = 0 [pid 3616] unshare(CLONE_SYSVSEM) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "16777216", 8) = 8 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "536870912", 9) = 9 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "8192", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3616] close(3) = 0 [pid 3616] getpid() = 1 [pid 3616] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 1a fe ff ff e8 4c 3b 3d fe e8 47 38 b6 fd e9 ca fe ff ff [ 40.759142][ T3617] RSP: 0018:ffffc900038bf620 EFLAGS: 00010293 [ 40.765219][ T3617] RAX: ffffffff834a4e28 RBX: 0000000000000004 RCX: ffff88801f5d1d80 [ 40.773232][ T3617] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 40.781246][ T3617] RBP: ffffc900038bf710 R08: ffffffff834a4c31 R09: ffffffff834596a3 [ 40.789352][ T3617] R10: 0000000000000002 R11: ffff88801f5d1d80 R12: 0000000000000050 [ 40.797381][ T3617] R13: ffff88801ce9d000 R14: 1ffff92000717ed0 R15: ffff888074562160 [ 40.805345][ T3617] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 40.814293][ T3617] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.820894][ T3617] CR2: 00005567cb272788 CR3: 000000001cb2b000 CR4: 00000000003506e0 [ 40.828895][ T3617] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.836898][ T3617] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.844858][ T3617] Call Trace: [ 40.848165][ T3617] [ 40.851101][ T3617] ? nilfs_sufile_mark_dirty+0x240/0x240 [ 40.856767][ T3617] ? nilfs_bmap_write+0x39/0xd0 [ 40.861628][ T3617] ? memcpy+0x3c/0x60 [ 40.865599][ T3617] nilfs_segctor_do_construct+0x4b4a/0x6fe0 [ 40.871592][ T3617] ? nilfs_transaction_unlock+0x210/0x210 [ 40.877334][ T3617] ? rcu_read_lock_sched_held+0x87/0x110 [ 40.882954][ T3617] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 40.889195][ T3617] ? __up_read+0x690/0x690 [ 40.893623][ T3617] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 40.899115][ T3617] ? do_raw_spin_lock+0x148/0x360 [ 40.904139][ T3617] ? __lock_acquire+0x1f60/0x1f60 [ 40.909215][ T3617] ? do_raw_spin_unlock+0x134/0x8a0 [ 40.914432][ T3617] ? _raw_spin_unlock+0x24/0x40 [ 40.919343][ T3617] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 40.924814][ T3617] nilfs_segctor_construct+0x143/0x8d0 [ 40.930318][ T3617] ? trace_nilfs2_transaction_transition+0xc9/0x240 [ 40.936931][ T3617] nilfs_segctor_thread+0x534/0x1180 [ 40.942201][ T3617] ? __kthread_parkme+0xbd/0x1c0 [ 40.947192][ T3617] ? nilfs_construction_timeout+0x40/0x40 [ 40.952916][ T3617] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 40.958841][ T3617] ? _raw_spin_unlock+0x40/0x40 [ 40.963696][ T3617] ? wake_bit_function+0x240/0x240 [ 40.968832][ T3617] ? _raw_spin_unlock+0x40/0x40 [ 40.973695][ T3617] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 40.979721][ T3617] ? __kthread_parkme+0x166/0x1c0 [ 40.984749][ T3617] kthread+0x266/0x300 [ 40.988987][ T3617] ? nilfs_construction_timeout+0x40/0x40 [ 40.994722][ T3617] ? kthread_blkcg+0xd0/0xd0 [ 40.999353][ T3617] ret_from_fork+0x1f/0x30 [ 41.003782][ T3617] [ 41.006831][ T3617] Kernel panic - not syncing: panic_on_warn set ... [ 41.013410][ T3617] CPU: 1 PID: 3617 Comm: segctord Not tainted 6.0.0-syzkaller #0 [ 41.021108][ T3617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.031151][ T3617] Call Trace: [ 41.034421][ T3617] [ 41.037344][ T3617] dump_stack_lvl+0x1b1/0x28e [ 41.042019][ T3617] ? fortify_panic+0x13/0x13 [ 41.046604][ T3617] ? panic+0x715/0x715 [ 41.050670][ T3617] ? vscnprintf+0x59/0x80 [ 41.054991][ T3617] ? nilfs_sufile_set_segment_usage+0x4b0/0x5c0 [ 41.061238][ T3617] panic+0x2d6/0x715 [ 41.065127][ T3617] ? __warn+0x131/0x220 [ 41.069274][ T3617] ? fb_is_primary_device+0xcc/0xcc [ 41.074469][ T3617] ? ret_from_fork+0x1f/0x30 [ 41.079052][ T3617] ? nilfs_sufile_set_segment_usage+0x4d8/0x5c0 [ 41.085282][ T3617] __warn+0x1fa/0x220 [ 41.089253][ T3617] ? nilfs_sufile_set_segment_usage+0x4d8/0x5c0 [ 41.095483][ T3617] report_bug+0x1b3/0x2d0 [ 41.099807][ T3617] handle_bug+0x3d/0x70 [ 41.103952][ T3617] exc_invalid_op+0x16/0x40 [ 41.108445][ T3617] asm_exc_invalid_op+0x16/0x20 [ 41.113286][ T3617] RIP: 0010:nilfs_sufile_set_segment_usage+0x4d8/0x5c0 [ 41.120122][ T3617] Code: 25 28 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 fa 00 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 58 3b 3d fe <0f> 0b e9 1a fe ff ff e8 4c 3b 3d fe e8 47 38 b6 fd e9 ca fe ff ff [ 41.139712][ T3617] RSP: 0018:ffffc900038bf620 EFLAGS: 00010293 [ 41.145767][ T3617] RAX: ffffffff834a4e28 RBX: 0000000000000004 RCX: ffff88801f5d1d80 [ 41.153728][ T3617] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 41.161685][ T3617] RBP: ffffc900038bf710 R08: ffffffff834a4c31 R09: ffffffff834596a3 [ 41.169653][ T3617] R10: 0000000000000002 R11: ffff88801f5d1d80 R12: 0000000000000050 [ 41.177612][ T3617] R13: ffff88801ce9d000 R14: 1ffff92000717ed0 R15: ffff888074562160 [ 41.185580][ T3617] ? nilfs_mdt_read_block+0xb3/0x460 [ 41.190854][ T3617] ? nilfs_sufile_set_segment_usage+0x2e1/0x5c0 [ 41.197081][ T3617] ? nilfs_sufile_set_segment_usage+0x4d8/0x5c0 [ 41.203321][ T3617] ? nilfs_sufile_mark_dirty+0x240/0x240 [ 41.208940][ T3617] ? nilfs_bmap_write+0x39/0xd0 [ 41.213778][ T3617] ? memcpy+0x3c/0x60 [ 41.217756][ T3617] nilfs_segctor_do_construct+0x4b4a/0x6fe0 [ 41.223686][ T3617] ? nilfs_transaction_unlock+0x210/0x210 [ 41.229393][ T3617] ? rcu_read_lock_sched_held+0x87/0x110 [ 41.235018][ T3617] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 41.240999][ T3617] ? __up_read+0x690/0x690 [ 41.245411][ T3617] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 41.251292][ T3617] ? do_raw_spin_lock+0x148/0x360 [ 41.256302][ T3617] ? __lock_acquire+0x1f60/0x1f60 [ 41.261329][ T3617] ? do_raw_spin_unlock+0x134/0x8a0 [ 41.266519][ T3617] ? _raw_spin_unlock+0x24/0x40 [ 41.271357][ T3617] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 41.276807][ T3617] nilfs_segctor_construct+0x143/0x8d0 [ 41.282258][ T3617] ? trace_nilfs2_transaction_transition+0xc9/0x240 [ 41.288845][ T3617] nilfs_segctor_thread+0x534/0x1180 [ 41.294119][ T3617] ? __kthread_parkme+0xbd/0x1c0 [ 41.299068][ T3617] ? nilfs_construction_timeout+0x40/0x40 [ 41.304777][ T3617] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 41.310660][ T3617] ? _raw_spin_unlock+0x40/0x40 [ 41.315500][ T3617] ? wake_bit_function+0x240/0x240 [ 41.320604][ T3617] ? _raw_spin_unlock+0x40/0x40 [ 41.325441][ T3617] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 41.331414][ T3617] ? __kthread_parkme+0x166/0x1c0 [ 41.336430][ T3617] kthread+0x266/0x300 [ 41.340486][ T3617] ? nilfs_construction_timeout+0x40/0x40 [ 41.346197][ T3617] ? kthread_blkcg+0xd0/0xd0 [ 41.350777][ T3617] ret_from_fork+0x1f/0x30 [ 41.355194][ T3617] [ 41.358476][ T3617] Kernel Offset: disabled [ 41.362864][ T3617] Rebooting in 86400 seconds..