watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:2:69] Modules linked in: irq event stamp: 77871136 hardirqs last enabled at (77871135): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (77871135): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (77871136): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (236540): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (236499): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 69 Comm: kworker/1:2 Not tainted 5.10.188 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: events rtc_timer_do_work 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: 3b 00 0f 1f 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 8a e4 41 fd 48 89 ef e8 52 9e 42 fd f6 c7 02 75 10 53 9d <65> ff 0d e4 4f 1d 7c 5b 5d e9 dd 1f 3b 00 e8 c8 99 61 fd eb e9 66 RSP: 0018:ffff888008ef7b58 EFLAGS: 00000293 RAX: 0000000004a4381f RBX: 0000000000000293 RCX: 1ffffffff0d0fa4a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e51f68 RBP: ffff888009ba6650 R08: 0000000000000001 R09: ffffffff8685f72f R10: fffffbfff0d0bee5 R11: 0000000000000001 R12: ffff888009ba6740 R13: 19ebbf4b289c8000 R14: ffffffff82e72790 R15: ffff888009ba67c8 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f15175000 CR3: 0000000004e26000 CR4: 0000000000350ee0 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] rtc_handle_legacy_irq drivers/rtc/interface.c:627 [inline] rtc_uie_update_irq+0x5c/0xa0 drivers/rtc/interface.c:652 rtc_timer_do_work+0x282/0xbd0 drivers/rtc/interface.c:927 process_one_work+0x9a9/0x14b0 kernel/workqueue.c:2282 worker_thread+0x61d/0x1310 kernel/workqueue.c:2428 kthread+0x38f/0x470 kernel/kthread.c:313 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 ---------------- Code disassembly (best guess): 0: 3b 00 cmp (%rax),%eax 2: 0f 1f 00 nopl (%rax) 5: 55 push %rbp 6: 48 89 fd mov %rdi,%rbp 9: 48 83 c7 18 add $0x18,%rdi d: 53 push %rbx e: 48 89 f3 mov %rsi,%rbx 11: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 16: e8 8a e4 41 fd callq 0xfd41e4a5 1b: 48 89 ef mov %rbp,%rdi 1e: e8 52 9e 42 fd callq 0xfd429e75 23: f6 c7 02 test $0x2,%bh 26: 75 10 jne 0x38 28: 53 push %rbx 29: 9d popfq * 2a: 65 ff 0d e4 4f 1d 7c decl %gs:0x7c1d4fe4(%rip) # 0x7c1d5015 <-- trapping instruction 31: 5b pop %rbx 32: 5d pop %rbp 33: e9 dd 1f 3b 00 jmpq 0x3b2015 38: e8 c8 99 61 fd callq 0xfd619a05 3d: eb e9 jmp 0x28 3f: 66 data16