Warning: Permanently added '10.128.1.85' (ECDSA) to the list of known hosts. [ 30.595562] IPVS: ftp: loaded support on port[0] = 21 executing program [ 30.672871] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 30.691366] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 30.785936] kasan: CONFIG_KASAN_INLINE enabled [ 30.790613] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.800042] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 30.806276] Modules linked in: [ 30.809449] CPU: 1 PID: 8000 Comm: segctord Not tainted 4.14.296-syzkaller #0 [ 30.816739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 30.826073] task: ffff888095a94600 task.stack: ffff8880959a0000 [ 30.832115] RIP: 0010:nilfs_segctor_do_construct+0x1d5a/0x79c0 [ 30.838055] RSP: 0018:ffff8880959a7b98 EFLAGS: 00010206 [ 30.843398] RAX: 0000000000000030 RBX: ffff88808d7c0dc8 RCX: 0000000000000001 [ 30.850651] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000180 [ 30.857901] RBP: 0000000000000160 R08: 0000000000037ba8 R09: 0000000000000001 [ 30.865150] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808d7c0dd8 [ 30.872400] R13: ffff88808d7e0cf0 R14: dffffc0000000000 R15: ffffea0002a99fc0 [ 30.879647] FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 30.887851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.893886] CR2: 00007fb5f3d56000 CR3: 00000000a1c86000 CR4: 00000000003406e0 [ 30.901224] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.908470] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.915717] Call Trace: [ 30.918292] ? nilfs_segctor_scan_file+0x630/0x630 [ 30.923199] ? lock_acquire+0x170/0x3f0 [ 30.927144] ? lock_downgrade+0x740/0x740 [ 30.931264] ? do_raw_spin_unlock+0x164/0x220 [ 30.935732] ? _raw_spin_unlock+0x29/0x40 [ 30.939863] nilfs_segctor_construct+0x6db/0x8e0 [ 30.944597] nilfs_segctor_thread+0x3ad/0xdb0 [ 30.949068] ? nilfs_segctor_construct+0x8e0/0x8e0 [ 30.953971] ? __schedule+0x893/0x1de0 [ 30.957835] ? kthread+0x287/0x420 [ 30.961351] ? wait_woken+0x230/0x230 [ 30.965129] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 30.970206] ? nilfs_segctor_construct+0x8e0/0x8e0 [ 30.975107] kthread+0x30d/0x420 [ 30.978448] ? kthread_create_on_node+0xd0/0xd0 [ 30.983098] ret_from_fork+0x24/0x30 [ 30.986782] Code: 89 3c 24 e9 b0 00 00 00 e8 a4 c2 e5 fe 31 d2 be de 01 00 00 48 c7 c7 c0 f2 b9 87 e8 e1 a5 c9 fe 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 38 44 00 00 48 8b 55 20 49 89 ef f6 c2 01 [ 31.005839] RIP: nilfs_segctor_do_construct+0x1d5a/0x79c0 RSP: ffff8880959a7b98 [ 31.019621] ---[ end trace d9fe6e2e511b5a4e ]--- [ 31.024400] Kernel panic - not syncing: Fatal exception [ 31.029965] Kernel Offset: disabled [ 31.033570] Rebooting in 86400 seconds..