FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:14058] Modules linked in: irq event stamp: 96860774 hardirqs last enabled at (96860773): [<ffffffff83c51f14>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (96860773): [<ffffffff83c51f14>] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (96860774): [<ffffffff83c385cb>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (18495274): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (18495263): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 14058 Comm: syz-executor.0 Not tainted 5.10.49 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 Code: 80 00 00 00 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 8a 88 61 fd 48 89 ef e8 b2 3e 62 fd f6 c7 02 75 0c 53 9d <65> ff 0d f4 cf 3c 7c 5b 5d c3 e8 7c 9f 80 fd eb ed 66 2e 0f 1f 84 RSP: 0018:ffff888041c47d08 EFLAGS: 00000202 RAX: 0000000005c5fa65 RBX: 0000000000000202 RCX: 1ffffffff0a89799 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83c51f14 RBP: ffff888045730450 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888045730450 R13: 1ffff11008388fa5 R14: 0000000000000202 R15: ffff888041c47ea8 FS: 00007f33b6001700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000210004ff CR3: 0000000022180000 CR4: 0000000000350ef0 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] prepare_to_wait_exclusive+0x122/0x220 kernel/sched/wait.c:262 io_cqring_wait fs/io_uring.c:7041 [inline] __do_sys_io_uring_enter+0x821/0x1910 fs/io_uring.c:9119 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f33b6001188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 0000000000466609 RDX: 0000000000000585 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000020000040 R09: 0000000000000008 R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffc58516fdf R14: 00007f33b6001300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14047 Comm: syz-executor.0 Not tainted 5.10.49 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:202 [inline] RIP: 0010:atomic_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:707 [inline] RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:82 [inline] RIP: 0010:do_raw_spin_lock+0x132/0x260 kernel/locking/spinlock_debug.c:113 Code: 28 00 00 00 00 e8 ae 2b 43 00 be 04 00 00 00 48 8d 7c 24 28 e8 9f 2b 43 00 8b 44 24 28 ba 01 00 00 00 89 44 24 04 f0 0f b1 13 <0f> 85 92 00 00 00 65 44 8b 35 50 3a da 7e 48 b8 00 00 00 00 00 fc RSP: 0018:ffff888049217c68 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88800e516450 RCX: ffffffff81275af1 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888049217c90 RBP: 1ffff11009242f8e R08: 0000000000000001 R09: 0000000000000003 R10: ffffed1009242f92 R11: 0000000000000001 R12: ffff88800e516458 R13: ffff88800e516460 R14: ffff88800e516450 R15: ffff888049217ea8 FS: 00007f33b6022700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff218a66718 CR3: 0000000022180000 CR4: 0000000000350ee0 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline] _raw_spin_lock_irqsave+0x3e/0x50 kernel/locking/spinlock.c:159 prepare_to_wait_exclusive+0x7d/0x220 kernel/sched/wait.c:258 io_cqring_wait fs/io_uring.c:7041 [inline] __do_sys_io_uring_enter+0x821/0x1910 fs/io_uring.c:9119 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f33b6022188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000585 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000020000040 R09: 0000000000000008 R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc58516fdf R14: 00007f33b6022300 R15: 0000000000022000