Warning: Permanently added '10.128.10.39' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 446.426001][ T8991] XFS (loop0): correcting sb_features alignment problem [ 446.433879][ T8991] XFS (loop0): Mounting V4 Filesystem [ 446.440006][ T8991] XFS (loop0): log size 2150998016 bytes too large, maximum size is 2136997888 bytes [ 446.449648][ T8991] XFS (loop0): Log size out of supported range. [ 446.455928][ T8991] XFS (loop0): Continuing onwards, but if log hangs are experienced then please report this message in the bug report. [ 446.469864][ T8991] XFS (loop0): totally zeroed log [ 446.476033][ T3152] XFS (loop0): Metadata corruption detected at xfs_agf_verify+0x1a1/0x970, xfs_agf block 0x1 [ 446.486457][ T3152] XFS (loop0): Unmount and run xfs_repair [ 446.492248][ T3152] XFS (loop0): First 128 bytes of corrupted metadata buffer: [ 446.499647][ T3152] 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.508600][ T3152] 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.517483][ T3152] 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.526317][ T3152] 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.535398][ T3152] 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.544476][ T3152] 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.553394][ T3152] 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.562318][ T3152] 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 446.571566][ T8991] XFS (loop0): metadata I/O error in "xfs_alloc_read_agf+0x169/0xa80" at daddr 0x1 len 1 error 117 [ 606.257156][ T1142] INFO: task syz-executor249:8991 blocked for more than 143 seconds. [ 606.265537][ T1142] Not tainted 5.6.0-rc3-syzkaller #0 [ 606.271454][ T1142] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 606.280432][ T1142] syz-executor249 D27560 8991 8989 0x00004000 [ 606.286754][ T1142] Call Trace: [ 606.290227][ T1142] __schedule+0x87f/0xcd0 [ 606.294576][ T1142] schedule+0x188/0x210 [ 606.299126][ T1142] xlog_grant_head_wait+0x2a5/0x4f0 [ 606.304427][ T1142] xlog_grant_head_check+0x221/0x3d0 [ 606.309823][ T1142] xfs_log_reserve+0x238/0x5d0 [ 606.314635][ T1142] xfs_log_quiesce+0x35c/0x820 [ 606.319463][ T1142] xfs_log_mount_cancel+0x51/0xc0 [ 606.324554][ T1142] xfs_mountfs+0x14d4/0x1d90 [ 606.329418][ T1142] ? xfs_filestream_new_ag+0x540/0x540 [ 606.334904][ T1142] xfs_fc_fill_super+0xd29/0x1160 [ 606.340075][ T1142] get_tree_bdev+0x40b/0x650 [ 606.344680][ T1142] ? xfs_fc_reconfigure+0x810/0x810 [ 606.349951][ T1142] xfs_fc_get_tree+0x1c/0x20 [ 606.354678][ T1142] vfs_get_tree+0x8b/0x2a0 [ 606.360045][ T1142] do_mount+0x18ee/0x25a0 [ 606.364578][ T1142] __se_sys_mount+0xdd/0x110 [ 606.369243][ T1142] __x64_sys_mount+0xbf/0xd0 [ 606.374137][ T1142] do_syscall_64+0xf7/0x1c0 [ 606.378718][ T1142] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 606.384626][ T1142] RIP: 0033:0x44761a [ 606.388594][ T1142] Code: Bad RIP value. [ 606.392664][ T1142] RSP: 002b:00007ffd4da28478 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 [ 606.401256][ T1142] RAX: ffffffffffffffda RBX: 00007ffd4da28650 RCX: 000000000044761a [ 606.409286][ T1142] RDX: 00007ffd4da284c0 RSI: 0000000020000000 RDI: 00007ffd4da284e0 [ 606.417430][ T1142] RBP: 0000000000000000 R08: 00007ffd4da28520 R09: 0000000000000000 [ 606.425685][ T1142] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000402900 [ 606.433912][ T1142] R13: 0000000000402990 R14: 0000000000000000 R15: 0000000000000000 [ 606.441944][ T1142] [ 606.441944][ T1142] Showing all locks held in the system: [ 606.449821][ T1142] 1 lock held by khungtaskd/1142: [ 606.454885][ T1142] #0: ffffffff892d9948 (rcu_read_lock){....}, at: rcu_lock_acquire+0x4/0x30 [ 606.463858][ T1142] 2 locks held by rsyslogd/8877: [ 606.468912][ T1142] #0: ffff888097faf8e0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x279/0x310 [ 606.477670][ T1142] #1: ffff8880aeb37198 (&rq->lock){-.-.}, at: __schedule+0xdb/0xcd0 [ 606.486492][ T1142] 2 locks held by getty/8967: [ 606.491333][ T1142] #0: ffff88809f583090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.500825][ T1142] #1: ffffc900017bb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.510951][ T1142] 2 locks held by getty/8968: [ 606.515751][ T1142] #0: ffff88809f353090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.525616][ T1142] #1: ffffc900017cb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.535279][ T1142] 2 locks held by getty/8969: [ 606.540018][ T1142] #0: ffff8880972a3090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.549268][ T1142] #1: ffffc900017eb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.559408][ T1142] 2 locks held by getty/8970: [ 606.564086][ T1142] #0: ffff88809f699090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.573681][ T1142] #1: ffffc900017db2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.583725][ T1142] 2 locks held by getty/8971: [ 606.588707][ T1142] #0: ffff888092406090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.598369][ T1142] #1: ffffc9000180b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.607980][ T1142] 2 locks held by getty/8972: [ 606.612815][ T1142] #0: ffff88809f57e090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.622429][ T1142] #1: ffffc900017fb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.632166][ T1142] 2 locks held by getty/8973: [ 606.636820][ T1142] #0: ffff88809f325090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 [ 606.646258][ T1142] #1: ffffc9000175b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x22f/0x1bc0 [ 606.656197][ T1142] 1 lock held by syz-executor249/8991: [ 606.661920][ T1142] #0: ffff8880a25260d8 (&type->s_umount_key#40/1){+.+.}, at: alloc_super+0x15f/0x790 [ 606.671902][ T1142] [ 606.674220][ T1142] ============================================= [ 606.674220][ T1142] [ 606.682988][ T1142] NMI backtrace for cpu 0 [ 606.687507][ T1142] CPU: 0 PID: 1142 Comm: khungtaskd Not tainted 5.6.0-rc3-syzkaller #0 [ 606.695848][ T1142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 606.706079][ T1142] Call Trace: [ 606.709490][ T1142] dump_stack+0x1fb/0x318 [ 606.713966][ T1142] nmi_cpu_backtrace+0xaa/0x190 [ 606.718835][ T1142] ? nmi_trigger_cpumask_backtrace+0x168/0x290 [ 606.725393][ T1142] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 606.731514][ T1142] nmi_trigger_cpumask_backtrace+0x16f/0x290 [ 606.737665][ T1142] arch_trigger_cpumask_backtrace+0x10/0x20 [ 606.743696][ T1142] trigger_all_cpu_backtrace+0x17/0x20 [ 606.749375][ T1142] watchdog+0xd40/0xd60 [ 606.753755][ T1142] kthread+0x332/0x350 [ 606.757845][ T1142] ? hungtask_pm_notify+0x50/0x50 [ 606.763108][ T1142] ? kthread_blkcg+0xe0/0xe0 [ 606.767839][ T1142] ret_from_fork+0x24/0x30 [ 606.772595][ T1142] Sending NMI from CPU 0 to CPUs 1: [ 606.778659][ C1] NMI backtrace for cpu 1 [ 606.778663][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 606.778668][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 606.778670][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x50 [ 606.778683][ C1] Code: fb e8 13 00 00 00 48 8b 3d f4 a1 f2 07 48 89 de e8 84 b4 3c 00 5b 5d c3 cc 55 48 89 e5 48 8b 45 08 65 48 8b 0c 25 c0 1d 02 00 <65> 8b 15 34 04 8b 7e f7 c2 00 01 1f 00 75 2c 8b 91 80 13 00 00 83 [ 606.778686][ C1] RSP: 0018:ffffc90000d3fda8 EFLAGS: 00000093 [ 606.778696][ C1] RAX: ffffffff83a4db29 RBX: ffff8880a99f4340 RCX: ffff8880a99f4340 [ 606.778704][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 606.778712][ C1] RBP: ffffc90000d3fda8 R08: ffffffff85d26f23 R09: ffffed101533e869 [ 606.778718][ C1] R10: ffffed101533e869 R11: 0000000000000000 R12: dffffc0000000000 [ 606.778724][ C1] R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffffffff1255a6b [ 606.778736][ C1] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 606.778741][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 606.778749][ C1] CR2: ffffffffff600400 CR3: 00000000a2ac3000 CR4: 00000000001406e0 [ 606.778755][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 606.778761][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 606.778766][ C1] Call Trace: [ 606.778773][ C1] debug_smp_processor_id+0x9/0x20 [ 606.778778][ C1] tick_nohz_idle_stop_tick+0x25/0x800 [ 606.778783][ C1] ? check_preemption_disabled+0x44/0x260 [ 606.778786][ C1] ? check_preemption_disabled+0x44/0x260 [ 606.778788][ C1] ? check_preemption_disabled+0x44/0x260 [ 606.778793][ C1] ? __this_cpu_preempt_check+0xd/0x20 [ 606.778798][ C1] do_idle+0x1e2/0x630 [ 606.778803][ C1] cpu_startup_entry+0x25/0x30 [ 606.778807][ C1] start_secondary+0x384/0x410 [ 606.778815][ C1] secondary_startup_64+0xa4/0xb0 [ 606.779801][ T1142] Kernel panic - not syncing: hung_task: blocked tasks [ 606.984067][ T1142] CPU: 0 PID: 1142 Comm: khungtaskd Not tainted 5.6.0-rc3-syzkaller #0 [ 606.992304][ T1142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 607.002758][ T1142] Call Trace: [ 607.006042][ T1142] dump_stack+0x1fb/0x318 [ 607.010431][ T1142] panic+0x264/0x7a9 [ 607.014471][ T1142] ? nmi_trigger_cpumask_backtrace+0x218/0x290 [ 607.020637][ T1142] watchdog+0xd53/0xd60 [ 607.024826][ T1142] kthread+0x332/0x350 [ 607.028901][ T1142] ? hungtask_pm_notify+0x50/0x50 [ 607.033922][ T1142] ? kthread_blkcg+0xe0/0xe0 [ 607.038499][ T1142] ret_from_fork+0x24/0x30 [ 607.044559][ T1142] Kernel Offset: disabled [ 607.048896][ T1142] Rebooting in 86400 seconds..