watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.1:9320] Modules linked in: irq event stamp: 100027974 hardirqs last enabled at (100027973): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (100027973): [] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (100027974): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (99846404): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (99846399): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 9320 Comm: syz-executor.1 Not tainted 5.10.52 #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 2a c8 60 fd 48 89 ef e8 42 7e 61 fd f6 c7 02 75 0c 53 9d <65> ff 0d e4 1a 3c 7c 5b 5d c3 e8 1c ec 7f fd eb ed 66 2e 0f 1f 84 RSP: 0018:ffff88805dbffd00 EFLAGS: 00000202 RAX: 0000000005f64e45 RBX: 0000000000000202 RCX: 1ffffffff0a898c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83c5d424 RBP: ffff888059dde450 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888059dde450 R13: 1ffff1100bb7ffa5 R14: 0000000000000202 R15: ffff88805dbffea8 FS: 00007f3b56400700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000543978 CR3: 0000000049138000 CR4: 0000000000350ee0 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:7034 [inline] __do_sys_io_uring_enter+0x821/0x1910 fs/io_uring.c:9111 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:00007f3b56400188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000993 RSI: 0000000000001555 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000020000040 R09: 0000000000000008 R10: 0000000000000001 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff61447a1f R14: 00007f3b56400300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9316 Comm: syz-executor.7 Not tainted 5.10.52 #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+0x55/0x60 kernel/kcov.c:207 Code: 82 40 13 00 00 83 f8 02 75 20 48 8b 8a 48 13 00 00 8b 92 44 13 00 00 48 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 34 c1 48 89 01 66 2e 0f 1f 84 00 00 00 00 00 41 55 41 54 49 89 fc 55 48 bd eb RSP: 0018:ffff888055667d20 EFLAGS: 00000046 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc900033db000 RDX: 0000000000040000 RSI: ffffffff8145bf4e RDI: 0000000000000005 RBP: ffffffff83c5d23b R08: 0000000000000000 R09: ffff88805769b35f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000287 R13: ffff88805769b490 R14: ffff88805769b450 R15: ffff888055667eb0 FS: 00007f467b05f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055faefdace20 CR3: 0000000045d8a000 CR4: 0000000000350ef0 Call Trace: arch_static_branch arch/x86/include/asm/jump_label.h:25 [inline] static_key_false include/linux/jump_label.h:200 [inline] trace_irq_disable_rcuidle include/trace/events/preemptirq.h:36 [inline] trace_hardirqs_off kernel/trace/trace_preemptirq.c:82 [inline] trace_hardirqs_off+0x6e/0x160 kernel/trace/trace_preemptirq.c:74 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] _raw_spin_lock_irqsave+0x4b/0x50 kernel/locking/spinlock.c:159 finish_wait+0xb2/0x210 kernel/sched/wait.c:385 io_cqring_wait fs/io_uring.c:7047 [inline] __do_sys_io_uring_enter+0xded/0x1910 fs/io_uring.c:9111 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:00007f467b05f188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000993 RSI: 0000000000001555 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000020000040 R09: 0000000000000008 R10: 0000000000000001 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffcc289d1bf R14: 00007f467b05f300 R15: 0000000000022000