./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2343353711 <...> Warning: Permanently added '10.128.1.46' (ECDSA) to the list of known hosts. execve("./syz-executor2343353711", ["./syz-executor2343353711"], 0x7fffdb843b50 /* 10 vars */) = 0 brk(NULL) = 0x55555731e000 brk(0x55555731ec40) = 0x55555731ec40 arch_prctl(ARCH_SET_FS, 0x55555731e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2343353711", 4096) = 28 brk(0x55555733fc40) = 0x55555733fc40 brk(0x555557340000) = 0x555557340000 mprotect(0x7fa887c64000, 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 3612 attached , child_tidptr=0x55555731e5d0) = 3612 [pid 3612] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3612] setsid() = 1 [pid 3612] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3612] unshare(CLONE_NEWNS) = 0 [pid 3612] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3612] unshare(CLONE_NEWIPC) = 0 [pid 3612] unshare(CLONE_NEWCGROUP) = 0 [pid 3612] unshare(CLONE_NEWUTS) = 0 [pid 3612] unshare(CLONE_SYSVSEM) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "16777216", 8) = 8 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "536870912", 9) = 9 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "8192", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3612] close(3) = 0 [pid 3612] getpid() = 1 [pid 3612] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 80 3c 20 00 74 08 48 89 ef e8 2f 36 8b fe 48 8b 45 00 48 89 44 [ 43.930697][ T3613] RSP: 0018:ffffc90003d8f280 EFLAGS: 00010202 [ 43.936752][ T3613] RAX: 0000000000000002 RBX: 1ffff1100e5b4044 RCX: 0000000000002000 [ 43.944712][ T3613] RDX: 0000000000001801 RSI: 000000000000000a RDI: 000000000000003d [ 43.952670][ T3613] RBP: 0000000000000010 R08: ffffffff835085a5 R09: ffffed100e093a2a [ 43.960630][ T3613] R10: ffffed100e093a2a R11: 1ffff1100e093a29 R12: dffffc0000000000 [ 43.968589][ T3613] R13: 0000000000002000 R14: ffff888072da0222 R15: ffff88802435cba0 [ 43.976548][ T3613] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 43.985468][ T3613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.992039][ T3613] CR2: 00007fa887c6b1d0 CR3: 000000000c88e000 CR4: 00000000003506e0 [ 44.000006][ T3613] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.007979][ T3613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.015962][ T3613] Call Trace: [ 44.019242][ T3613] [ 44.022172][ T3613] ? nilfs_dat_commit_end+0x537/0x610 [ 44.027550][ T3613] nilfs_dat_commit_update+0x25/0x40 [ 44.032832][ T3613] nilfs_btree_commit_update_v+0x91/0x420 [ 44.038551][ T3613] nilfs_btree_propagate+0x972/0xe10 [ 44.043834][ T3613] nilfs_bmap_propagate+0x6d/0x120 [ 44.048935][ T3613] nilfs_collect_file_data+0x49/0xc0 [ 44.054211][ T3613] nilfs_segctor_apply_buffers+0x192/0x380 [ 44.060005][ T3613] ? _compound_head+0x130/0x130 [ 44.064852][ T3613] nilfs_segctor_scan_file+0x842/0xaf0 [ 44.070311][ T3613] ? write_boundary_block+0xb0/0xb0 [ 44.075505][ T3613] ? trace_nilfs2_collection_stage_transition+0x2b0/0x2b0 [ 44.082602][ T3613] ? put_page+0xb0/0x230 [ 44.086844][ T3613] ? rcu_read_lock_sched_held+0x5d/0x110 [ 44.092468][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 44.098439][ T3613] ? nilfs_segbuf_reset+0x142/0x320 [ 44.103638][ T3613] nilfs_segctor_do_construct+0x1d2c/0x6f80 [ 44.109523][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 44.115508][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 44.121481][ T3613] ? nilfs_bmap_test_and_clear_dirty+0x60/0xa0 [ 44.127629][ T3613] ? read_lock_is_recursive+0x10/0x10 [ 44.132991][ T3613] ? rcu_read_lock_sched_held+0x5d/0x110 [ 44.138652][ T3613] ? nilfs_transaction_unlock+0x210/0x210 [ 44.144357][ T3613] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 44.149810][ T3613] ? __might_sleep+0xc0/0xc0 [ 44.154394][ T3613] ? rcu_read_lock_sched_held+0x5d/0x110 [ 44.160032][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 44.166092][ T3613] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 44.172064][ T3613] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 44.177513][ T3613] ? trace_lock_release+0x95/0x220 [ 44.182618][ T3613] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 44.188069][ T3613] ? lock_release+0x81/0x820 [ 44.192650][ T3613] ? read_lock_is_recursive+0x10/0x10 [ 44.198014][ T3613] ? __up_read+0x690/0x690 [ 44.202419][ T3613] ? do_raw_spin_lock+0x148/0x360 [ 44.207439][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 44.212543][ T3613] ? do_raw_spin_unlock+0x134/0x8a0 [ 44.217733][ T3613] ? _raw_spin_unlock+0x24/0x40 [ 44.222574][ T3613] ? nilfs_segctor_confirm+0x24b/0x2d0 [ 44.228023][ T3613] nilfs_segctor_construct+0x143/0x8d0 [ 44.233472][ T3613] ? trace_nilfs2_transaction_transition+0xec/0x2e0 [ 44.240049][ T3613] nilfs_segctor_thread+0x59e/0x11c0 [ 44.245334][ T3613] ? nilfs_construction_timeout+0x40/0x40 [ 44.251062][ T3613] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 44.256960][ T3613] ? _raw_spin_unlock+0x40/0x40 [ 44.261801][ T3613] ? wake_bit_function+0x240/0x240 [ 44.266907][ T3613] ? _raw_spin_unlock+0x40/0x40 [ 44.271746][ T3613] ? __kthread_parkme+0x166/0x1c0 [ 44.276765][ T3613] kthread+0x266/0x300 [ 44.280827][ T3613] ? nilfs_construction_timeout+0x40/0x40 [ 44.286536][ T3613] ? kthread_blkcg+0xd0/0xd0 [ 44.291118][ T3613] ret_from_fork+0x1f/0x30 [ 44.295536][ T3613] [ 44.298543][ T3613] Modules linked in: [ 44.302728][ T3613] ---[ end trace 0000000000000000 ]--- [ 44.308240][ T3613] RIP: 0010:nilfs_palloc_commit_free_entry+0xd2/0x570 [ 44.315004][ T3613] Code: 08 4c 89 f8 48 c1 e8 03 48 89 44 24 18 42 80 3c 20 00 74 08 4c 89 ff e8 4c 36 8b fe 49 8b 2f 48 83 c5 10 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 ef e8 2f 36 8b fe 48 8b 45 00 48 89 44 [ 44.334628][ T3613] RSP: 0018:ffffc90003d8f280 EFLAGS: 00010202 [ 44.340712][ T3613] RAX: 0000000000000002 RBX: 1ffff1100e5b4044 RCX: 0000000000002000 [ 44.348688][ T3613] RDX: 0000000000001801 RSI: 000000000000000a RDI: 000000000000003d [ 44.356653][ T3613] RBP: 0000000000000010 R08: ffffffff835085a5 R09: ffffed100e093a2a [ 44.364637][ T3613] R10: ffffed100e093a2a R11: 1ffff1100e093a29 R12: dffffc0000000000 [ 44.372709][ T3613] R13: 0000000000002000 R14: ffff888072da0222 R15: ffff88802435cba0 [ 44.380688][ T3613] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 44.389646][ T3613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.396213][ T3613] CR2: 00007fa887c6b1d0 CR3: 000000000c88e000 CR4: 00000000003506e0 [ 44.404200][ T3613] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.412550][ T3613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.420638][ T3613] Kernel panic - not syncing: Fatal exception [ 44.426840][ T3613] Kernel Offset: disabled [ 44.431156][ T3613] Rebooting in 86400 seconds..