I/O error, dev loop2, sector 552 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 I/O error, dev loop2, sector 3080 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 ================================ WARNING: inconsistent lock state syzkaller #0 Tainted: G L -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. kworker/u8:6/192 [HC0[0]:SC1[1]:HE1:SE0] takes: ffff888053dcde40 (&sb->s_type->i_lock_key#43){+.?.}-{3:3}, at: spin_lock include/linux/spinlock.h:342 [inline] ffff888053dcde40 (&sb->s_type->i_lock_key#43){+.?.}-{3:3}, at: igrab+0x2d/0x1e0 fs/inode.c:1577 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158 spin_lock include/linux/spinlock.h:342 [inline] inode_insert5+0x17b/0x5e0 fs/inode.c:1337 iget5_locked+0x66/0xa0 fs/inode.c:1385 ntfs_iget5+0xc1/0x38e0 fs/ntfs3/inode.c:535 ntfs_fill_super+0x233c/0x4580 fs/ntfs3/super.c:1315 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1694 vfs_get_tree+0x92/0x2a0 fs/super.c:1754 fc_mount fs/namespace.c:1193 [inline] do_new_mount_fc fs/namespace.c:3758 [inline] do_new_mount+0x341/0xd30 fs/namespace.c:3834 do_mount fs/namespace.c:4167 [inline] __do_sys_mount fs/namespace.c:4383 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4360 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 2858482 hardirqs last enabled at (2858482): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (2858482): [] _raw_spin_unlock_irqrestore+0x30/0x80 kernel/locking/spinlock.c:198 hardirqs last disabled at (2858481): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (2858481): [] _raw_spin_lock_irqsave+0x1a/0x60 kernel/locking/spinlock.c:166 softirqs last enabled at (2858386): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (2858386): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:891 [inline] softirqs last enabled at (2858386): [] nsim_dev_trap_report_work+0x7d6/0xb90 drivers/net/netdevsim/dev.c:922 softirqs last disabled at (2858439): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (2858439): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (2858439): [] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&sb->s_type->i_lock_key#43); lock(&sb->s_type->i_lock_key#43); *** DEADLOCK *** 2 locks held by kworker/u8:6/192: #0: ffff88813fe7c140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3277 [inline] #0: ffff88813fe7c140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3385 #1: ffffc900030a7c40 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3278 [inline] #1: ffffc900030a7c40 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3385 stack backtrace: CPU: 0 UID: 0 PID: 192 Comm: kworker/u8:6 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_usage_bug+0x28b/0x2e0 kernel/locking/lockdep.c:4042 valid_state kernel/locking/lockdep.c:4056 [inline] mark_lock_irq+0x410/0x420 kernel/locking/lockdep.c:-1 mark_lock+0x115/0x190 kernel/locking/lockdep.c:4753 mark_usage kernel/locking/lockdep.c:-1 [inline] __lock_acquire+0x689/0x2cf0 kernel/locking/lockdep.c:5191 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158 spin_lock include/linux/spinlock.h:342 [inline] igrab+0x2d/0x1e0 fs/inode.c:1577 fserror_report+0x3c5/0x740 fs/fserror.c:159 fserror_report_io include/linux/fserror.h:48 [inline] iomap_finish_folio_read+0x1d9/0x220 fs/iomap/buffered-io.c:415 ntfs_iomap_read_end_io+0x69d/0xe00 fs/ntfs3/inode.c:604 blk_update_request+0x57e/0xe60 block/blk-mq.c:1016 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1178 blk_complete_reqs block/blk-mq.c:1253 [inline] blk_done_softirq+0x10a/0x160 block/blk-mq.c:1258 handle_softirqs+0x22a/0x840 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:733 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198 Code: f7 e8 dd 64 f7 f5 f7 c3 00 02 00 00 74 05 e8 80 f8 22 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 54 e7 e8 f5 65 8b 05 ed 10 8e 07 85 c0 74 18 5b 41 5e e9 bc 51 RSP: 0018:ffffc900030a7800 EFLAGS: 00000206 RAX: 0000000000000006 RBX: 0000000000000282 RCX: 0000000080000001 RDX: 0000000000000006 RSI: ffffffff8dfa5a5d RDI: 0000000000000001 RBP: ffff88801e2c20a8 R08: ffffffff9030a7f7 R09: 1ffffffff20614fe R10: dffffc0000000000 R11: fffffbfff20614ff R12: dffffc0000000000 R13: ffffffff9a4bf9e0 R14: ffff88801e2c20a8 R15: 1ffff11003c58430 srcu_funnel_gp_start kernel/rcu/srcutree.c:1139 [inline] srcu_gp_start_if_needed+0x7af/0xc00 kernel/rcu/srcutree.c:1398 __call_srcu kernel/rcu/srcutree.c:1443 [inline] __synchronize_srcu+0x23f/0x300 kernel/rcu/srcutree.c:1495 fsnotify_mark_destroy_workfn+0x109/0x300 fs/notify/mark.c:1143 process_one_work kernel/workqueue.c:3302 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: f7 e8 imul %eax 2: dd 64 f7 f5 frstor -0xb(%rdi,%rsi,8) 6: f7 c3 00 02 00 00 test $0x200,%ebx c: 74 05 je 0x13 e: e8 80 f8 22 f6 call 0xf622f893 13: 9c pushf 14: 58 pop %rax 15: a9 00 02 00 00 test $0x200,%eax 1a: 75 27 jne 0x43 1c: f7 c3 00 02 00 00 test $0x200,%ebx 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 54 e7 e8 f5 call 0xf5e8e783 <-- trapping instruction 2f: 65 8b 05 ed 10 8e 07 mov %gs:0x78e10ed(%rip),%eax # 0x78e1123 36: 85 c0 test %eax,%eax 38: 74 18 je 0x52 3a: 5b pop %rbx 3b: 41 5e pop %r14 3d: e9 .byte 0xe9 3e: bc .byte 0xbc 3f: 51 push %rcx