Warning: Permanently added '10.128.1.171' (ECDSA) to the list of known hosts. executing program [ 756.030831] NILFS (loop0): invalid segment: Checksum error in segment payload [ 756.038446] NILFS (loop0): trying rollback from an earlier position [ 756.056272] NILFS (loop0): recovery complete [ 756.061957] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 756.078058] audit: type=1804 audit(1676530624.254:2): pid=7977 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor157" name="/root/file0/bus" dev="loop0" ino=12 res=1 [ 756.082736] NILFS (loop0): unable to move secondary superblock to block 18446744073709551612 [ 756.115063] audit: type=1804 audit(1676530624.284:3): pid=7977 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor157" name="/root/file0/bus" dev="loop0" ino=12 res=1 [ 1001.344152] INFO: task segctord:7982 blocked for more than 140 seconds. [ 1001.351309] Not tainted 4.14.305-syzkaller #0 [ 1001.358217] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.373941] segctord D27400 7982 2 0x80000000 [ 1001.393954] Call Trace: [ 1001.396589] __schedule+0x88b/0x1de0 [ 1001.400316] ? io_schedule_timeout+0x140/0x140 [ 1001.405732] ? mark_held_locks+0xa6/0xf0 [ 1001.411619] ? _raw_spin_unlock_irq+0x24/0x80 [ 1001.422021] ? rwsem_down_write_failed+0x33e/0x6d0 [ 1001.433453] schedule+0x8d/0x1b0 [ 1001.443949] rwsem_down_write_failed+0x343/0x6d0 [ 1001.448738] ? rwsem_down_read_failed_killable+0x520/0x520 [ 1001.463964] ? lock_downgrade+0x740/0x740 [ 1001.468157] ? trace_hardirqs_on+0x10/0x10 [ 1001.472400] ? _raw_spin_unlock_irq+0x24/0x80 [ 1001.493936] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 1001.498995] call_rwsem_down_write_failed+0x13/0x20 [ 1001.505453] down_write+0x4f/0x90 [ 1001.508932] ? nilfs_transaction_lock+0x1f9/0x860 [ 1001.513780] nilfs_transaction_lock+0x1f9/0x860 [ 1001.520467] nilfs_segctor_thread+0x3a2/0xdb0 [ 1001.525991] ? nilfs_segctor_construct+0x8e0/0x8e0 [ 1001.530967] ? __schedule+0x893/0x1de0 [ 1001.536715] ? kthread+0x287/0x420 [ 1001.540288] ? wait_woken+0x230/0x230 [ 1001.545467] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 1001.550593] ? nilfs_segctor_construct+0x8e0/0x8e0 [ 1001.556959] kthread+0x30d/0x420 [ 1001.560435] ? kthread_create_on_node+0xd0/0xd0 [ 1001.566631] ret_from_fork+0x24/0x30 [ 1001.570512] [ 1001.570512] Showing all locks held in the system: [ 1001.578723] 1 lock held by khungtaskd/1534: [ 1001.583139] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1001.592300] 1 lock held by segctord/7982: [ 1001.596481] #0: (&nilfs->ns_segctor_sem){++++}, at: [] nilfs_transaction_lock+0x1f9/0x860 [ 1001.606607] [ 1001.608257] ============================================= [ 1001.608257] [ 1001.620439] NMI backtrace for cpu 0 [ 1001.624249] CPU: 0 PID: 1534 Comm: khungtaskd Not tainted 4.14.305-syzkaller #0 [ 1001.631694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 1001.641048] Call Trace: [ 1001.643648] dump_stack+0x1b2/0x281 [ 1001.647284] nmi_cpu_backtrace.cold+0x57/0x93 [ 1001.651887] ? irq_force_complete_move+0x350/0x350 [ 1001.656822] nmi_trigger_cpumask_backtrace+0x13a/0x180 [ 1001.662100] watchdog+0x5b9/0xb40 [ 1001.665559] ? hungtask_pm_notify+0x50/0x50 [ 1001.669891] kthread+0x30d/0x420 [ 1001.673259] ? kthread_create_on_node+0xd0/0xd0 [ 1001.677937] ret_from_fork+0x24/0x30 [ 1001.681699] Sending NMI from CPU 0 to CPUs 1: [ 1001.687153] NMI backtrace for cpu 1 [ 1001.687160] CPU: 1 PID: 7977 Comm: syz-executor157 Not tainted 4.14.305-syzkaller #0 [ 1001.687166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 1001.687171] task: ffff8880b565c540 task.stack: ffff8880b3040000 [ 1001.687174] RIP: 0010:lock_release+0xc2/0x870 [ 1001.687178] RSP: 0018:ffff8880b30470f0 EFLAGS: 00000086 [ 1001.687186] RAX: 0000000000000086 RBX: 1ffff11016608e21 RCX: 0000000000007feb [ 1001.687191] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880b565cdc4 [ 1001.687196] RBP: ffff88813fffb758 R08: ffffffff8b9e5ad8 R09: 00000000000e001f [ 1001.687202] R10: 0000000000000000 R11: ffff8880b565c540 R12: ffffffff816a3f10 [ 1001.687208] R13: ffff8880b565c540 R14: 1ffffffff11e13da R15: 0000000000000086 [ 1001.687214] FS: 0000555555cd0300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 1001.687218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1001.687223] CR2: 00007f6594058160 CR3: 00000000af5fb000 CR4: 00000000003406e0 [ 1001.687228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1001.687233] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1001.687235] Call Trace: [ 1001.687237] ? lock_downgrade+0x740/0x740 [ 1001.687241] page_outside_zone_boundaries+0xcf/0x310 [ 1001.687244] ? free_pcppages_bulk+0x2e0/0x1460 [ 1001.687247] ? __mod_zone_page_state+0x84/0xd0 [ 1001.687250] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 1001.687253] free_pcppages_bulk+0x2e0/0x1460 [ 1001.687256] ? kernel_poison_pages+0x1b/0x250 [ 1001.687259] ? check_preemption_disabled+0x35/0x240 [ 1001.687262] free_hot_cold_page+0x90e/0xca0 [ 1001.687265] slabs_destroy+0x90/0xd0 [ 1001.687267] ___cache_free+0x213/0x2c0 [ 1001.687270] qlist_free_all+0x79/0x140 [ 1001.687273] quarantine_reduce+0x185/0x200 [ 1001.687275] kasan_kmalloc+0xa2/0x160 [ 1001.687278] ? kasan_kmalloc+0xeb/0x160 [ 1001.687281] ? kmem_cache_alloc+0x124/0x3c0 [ 1001.687284] ? alloc_buffer_head+0x20/0x110 [ 1001.687287] ? alloc_page_buffers+0xb3/0x1f0 [ 1001.687290] ? create_empty_buffers+0x2c/0x470 [ 1001.687293] ? nilfs_grab_buffer+0x1fb/0x420 [ 1001.687296] ? nilfs_mdt_submit_block.constprop.0+0x8e/0x970 [ 1001.687299] ? nilfs_mdt_read_block+0x7c/0x320 [ 1001.687302] ? nilfs_mdt_get_block+0xc7/0xb90 [ 1001.687305] ? nilfs_sufile_resize+0x6b7/0x1060 [ 1001.687308] ? nilfs_resize_fs+0x1c3/0xd20 [ 1001.687311] ? nilfs_ioctl+0x123e/0x1930 [ 1001.687313] ? do_vfs_ioctl+0x75a/0xff0 [ 1001.687316] ? SyS_ioctl+0x7f/0xb0 [ 1001.687319] ? do_syscall_64+0x1d5/0x640 [ 1001.687322] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 1001.687325] ? check_preemption_disabled+0x35/0x240 [ 1001.687328] ? mark_held_locks+0xa6/0xf0 [ 1001.687331] ? mem_cgroup_commit_charge+0x17c/0x3b0 [ 1001.687335] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 1001.687338] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 1001.687341] ? mark_held_locks+0xa6/0xf0 [ 1001.687344] ? kmem_cache_alloc+0x2c8/0x3c0 [ 1001.687346] kmem_cache_alloc+0x111/0x3c0 [ 1001.687349] alloc_buffer_head+0x20/0x110 [ 1001.687352] alloc_page_buffers+0xb3/0x1f0 [ 1001.687355] create_empty_buffers+0x2c/0x470 [ 1001.687358] nilfs_grab_buffer+0x1fb/0x420 [ 1001.687361] nilfs_mdt_submit_block.constprop.0+0x8e/0x970 [ 1001.687364] ? nilfs_mdt_write_page+0x250/0x250 [ 1001.687367] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1001.687370] nilfs_mdt_read_block+0x7c/0x320 [ 1001.687374] ? nilfs_mdt_submit_block.constprop.0+0x970/0x970 [ 1001.687377] ? mark_held_locks+0xa6/0xf0 [ 1001.687379] ? retint_kernel+0x2d/0x2d [ 1001.687382] ? retint_kernel+0x2d/0x2d [ 1001.687385] nilfs_mdt_get_block+0xc7/0xb90 [ 1001.687387] ? retint_kernel+0x2d/0x2d [ 1001.687391] ? nilfs_mdt_read_block+0x320/0x320 [ 1001.687393] nilfs_sufile_resize+0x6b7/0x1060 [ 1001.687397] ? nilfs_sufile_do_set_error+0x460/0x460 [ 1001.687400] ? nilfs_resize_fs+0x115/0xd20 [ 1001.687402] nilfs_resize_fs+0x1c3/0xd20 [ 1001.687405] ? nilfs_remount+0x450/0x450 [ 1001.687408] ? __might_fault+0x177/0x1b0 [ 1001.687410] nilfs_ioctl+0x123e/0x1930 [ 1001.687414] ? nilfs_ioctl_prepare_clean_segments+0x790/0x790 [ 1001.687417] ? debug_check_no_obj_freed+0x2c0/0x680 [ 1001.687420] ? lock_acquire+0x170/0x3f0 [ 1001.687423] ? lock_downgrade+0x740/0x740 [ 1001.687426] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1001.687429] ? debug_check_no_obj_freed+0x2c0/0x680 [ 1001.687433] ? nilfs_ioctl_prepare_clean_segments+0x790/0x790 [ 1001.687436] do_vfs_ioctl+0x75a/0xff0 [ 1001.687439] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 1001.687442] ? ioctl_preallocate+0x1a0/0x1a0 [ 1001.687445] ? kmem_cache_free+0x23a/0x2b0 [ 1001.687447] ? putname+0xcd/0x110 [ 1001.687450] ? do_sys_open+0x208/0x410 [ 1001.687452] ? filp_open+0x60/0x60 [ 1001.687455] ? security_file_ioctl+0x83/0xb0 [ 1001.687458] SyS_ioctl+0x7f/0xb0 [ 1001.687460] ? do_vfs_ioctl+0xff0/0xff0 [ 1001.687463] do_syscall_64+0x1d5/0x640 [ 1001.687466] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 1001.687469] RIP: 0033:0x7fa0d3c07619 [ 1001.687472] RSP: 002b:00007ffdb60d1908 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1001.687479] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0d3c07619 [ 1001.687484] RDX: 0000000020000040 RSI: 0000000040086e8b RDI: 0000000000000006 [ 1001.687488] RBP: 0000000000000000 R08: 00007fa0d3c75ec0 R09: 00007fa0d3c75ec0 [ 1001.687493] R10: 00007fa0d3c75ec0 R11: 0000000000000246 R12: 00007ffdb60d1930 [ 1001.687497] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 1001.687499] Code: 9e f0 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 98 06 00 00 48 83 3d 26 be ae 07 00 0f 84 0e 05 00 00 9c 58 <0f> 1f 44 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 04 24 48 c7 [ 1001.754286] Kernel panic - not syncing: hung_task: blocked tasks [ 1002.223033] CPU: 0 PID: 1534 Comm: khungtaskd Not tainted 4.14.305-syzkaller #0 [ 1002.230493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 1002.239858] Call Trace: [ 1002.242452] dump_stack+0x1b2/0x281 [ 1002.246120] panic+0x21d/0x451 [ 1002.249321] ? add_taint.cold+0x16/0x16 [ 1002.253320] watchdog+0x5ca/0xb40 [ 1002.256775] ? hungtask_pm_notify+0x50/0x50 [ 1002.261098] kthread+0x30d/0x420 [ 1002.264489] ? kthread_create_on_node+0xd0/0xd0 [ 1002.269168] ret_from_fork+0x24/0x30 [ 1002.273235] Kernel Offset: disabled [ 1002.276861] Rebooting in 86400 seconds..