watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:8525]
Modules linked in:
irq event stamp: 105183678
hardirqs last  enabled at (105183677): [<ffffffff83c5e444>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (105183677): [<ffffffff83c5e444>] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191
hardirqs last disabled at (105183678): [<ffffffff83c44a9b>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095
softirqs last  enabled at (23197874): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (23197805): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20
CPU: 0 PID: 8525 Comm: syz-executor.3 Not tainted 5.10.56 #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 b8 60 fd 48 89 ef e8 a2 6e 61 fd f6 c7 02 75 0c 53 9d <65> ff 0d c4 0a 3c 7c 5b 5d c3 e8 dc dc 7f fd eb ed 66 2e 0f 1f 84
RSP: 0018:ffff88804670fd00 EFLAGS: 00000202
RAX: 000000000644f9bd RBX: 0000000000000202 RCX: 1ffffffff0a898f1
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83c5e444
RBP: ffff88804f192450 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804f192450
R13: 1ffff11008ce1fa5 R14: 0000000000000202 R15: ffff88804670fea8
FS:  00007ff06e014700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cd27000 CR3: 0000000051ff4000 CR4: 0000000000350ef0
Call Trace:
 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
 prepare_to_wait_exclusive+0x129/0x2a0 kernel/sched/wait.c:266
 io_cqring_wait fs/io_uring.c:7039 [inline]
 __do_sys_io_uring_enter+0x821/0x1910 fs/io_uring.c:9116
 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:00007ff06e014188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609
RDX: 000000000000373a RSI: 00000000000005c8 RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000020002940 R09: 0000000000000008
R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffcf5f92ecf R14: 00007ff06e014300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8531 Comm: syz-executor.7 Not tainted 5.10.56 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:193
Code: ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 d1 fd ff ff 0f 1f 44 00 00 <48> 8b 34 24 65 48 8b 14 25 40 ef 01 00 65 8b 05 9c 68 c2 7e a9 00
RSP: 0018:ffff888049e67d98 EFLAGS: 00000297
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 000000000000373a
RDX: 000000000000373a RSI: ffff888008e34bc0 RDI: 0000000000000004
RBP: ffff888052be6780 R08: 0000000000000000 R09: ffff888008e34bc7
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888052658000 R14: ffff888052658450 R15: ffff888052658000
FS:  00007f56faa1f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fedf26a6718 CR3: 00000000569a4000 CR4: 0000000000350ee0
Call Trace:
 io_should_wake fs/io_uring.c:6961 [inline]
 io_cqring_wait fs/io_uring.c:7049 [inline]
 __do_sys_io_uring_enter+0xeda/0x1910 fs/io_uring.c:9116
 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:00007f56faa1f188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609
RDX: 000000000000373a RSI: 00000000000005c8 RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000020002940 R09: 0000000000000008
R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffdd5f1ce4f R14: 00007f56faa1f300 R15: 0000000000022000