XFS (loop0): Log size out of supported range. XFS (loop0): Continuing onwards, but if log hangs are experienced then please report this message in the bug report. XFS (loop0): Starting recovery (logdev: internal) INFO: task syz-executor158:7970 blocked for more than 140 seconds. Not tainted 4.14.302-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor158 D27312 7970 7969 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 xlog_grant_head_wait+0x12f/0xc10 fs/xfs/xfs_log.c:274 xlog_grant_head_check+0x357/0x3a0 fs/xfs/xfs_log.c:336 xfs_log_reserve+0x2fb/0x9e0 fs/xfs/xfs_log.c:465 xfs_trans_reserve+0x5bb/0x940 fs/xfs/xfs_trans.c:176 xfs_trans_alloc+0x1fc/0x320 fs/xfs/xfs_trans.c:255 xlog_finish_defer_ops fs/xfs/xfs_log_recover.c:4833 [inline] xlog_recover_process_intents+0x1d2/0x3f0 fs/xfs/xfs_log_recover.c:4938 xlog_recover_finish+0x52/0x210 fs/xfs/xfs_log_recover.c:5840 xfs_log_mount_finish+0xd9/0x2d0 fs/xfs/xfs_log.c:789 xfs_mountfs+0xeef/0x1f40 fs/xfs/xfs_mount.c:952 xfs_fs_fill_super+0xb7a/0x1380 fs/xfs/xfs_super.c:1688 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f32598b85ca RSP: 002b:00007fff621632d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00646975756f6e2c RCX: 00007f32598b85ca RDX: 000000002000bb00 RSI: 0000000020000040 RDI: 00007fff621632e0 RBP: 00007fff621632e0 R08: 00007fff62163320 R09: 0000000000000002 R10: 0000000000000003 R11: 0000000000000206 R12: 0000000000000004 R13: 0000555556f022c0 R14: 00007fff62163320 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by khungtaskd/1533: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 2 locks held by syz-executor158/7970: #0: (&type->s_umount_key#46/1){+.+.}, at: [] alloc_super fs/super.c:251 [inline] #0: (&type->s_umount_key#46/1){+.+.}, at: [] sget_userns+0x556/0xc10 fs/super.c:516 #1: (sb_internal#2){.+.+}, at: [] sb_start_intwrite include/linux/fs.h:1598 [inline] #1: (sb_internal#2){.+.+}, at: [] xfs_trans_alloc+0x259/0x320 fs/xfs/xfs_trans.c:242 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4620 Comm: systemd-journal Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 task: ffff8880a1b38040 task.stack: ffff8880a1b40000 RIP: 0010:__lock_acquire+0x1d0/0x3f20 kernel/locking/lockdep.c:3369 RSP: 0018:ffff8880a1b47728 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffffffff180e304 RSI: 0000000000000000 RDI: ffffffff8c071820 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: ffff8880a1b38040 R12: ffffffff8c071820 R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8becfdc0 FS: 00007f77ead318c0(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f77e8104000 CR3: 00000000a183f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160 __debug_check_no_obj_freed lib/debugobjects.c:738 [inline] debug_check_no_obj_freed+0x135/0x680 lib/debugobjects.c:776 free_pages_prepare mm/page_alloc.c:1064 [inline] __free_pages_ok+0x215/0xed0 mm/page_alloc.c:1262 slab_destroy mm/slab.c:1723 [inline] slabs_destroy+0x90/0xd0 mm/slab.c:1739 cache_flusharray mm/slab.c:3483 [inline] ___cache_free+0x213/0x2c0 mm/slab.c:3525 qlink_free mm/kasan/quarantine.c:147 [inline] qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x185/0x200 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:536 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x111/0x3c0 mm/slab.c:3550 prepare_creds+0x39/0x490 kernel/cred.c:255 SYSC_faccessat fs/open.c:365 [inline] SyS_faccessat+0x7b/0x680 fs/open.c:353 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f77e9fec9c7 RSP: 002b:00007ffd8aaf5f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffd8aaf8e40 RCX: 00007f77e9fec9c7 RDX: 00007f77eaa5da00 RSI: 0000000000000000 RDI: 00005620675209a3 RBP: 00007ffd8aaf5f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffd8aaf8e40 R15: 00007ffd8aaf6450 Code: 00 48 81 c4 80 01 00 00 44 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 <0f> 85 67 2a 00 00 49 81 3c 24 e0 b7 2f 8b 0f 84 5f ff ff ff 83