watchdog: BUG: soft lockup - CPU#0 stuck for 163s! [swapper/0:0] Modules linked in: irq event stamp: 705115 hardirqs last enabled at (705114): [] kvm_wait arch/x86/kernel/kvm.c:997 [inline] hardirqs last enabled at (705114): [] kvm_wait+0x8d/0x100 arch/x86/kernel/kvm.c:979 hardirqs last disabled at (705115): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (704256): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (704256): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (704269): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (704269): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1001 Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 03 4c 4a 00 eb 07 0f 00 2d 2a 8f 75 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 c6 46 4a 00 8b 74 24 0c RSP: 0018:ffffc90000007d98 EFLAGS: 00000206 RAX: 00000000000ac25a RBX: 0000000000000000 RCX: 1ffffffff1ffc5d6 RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff88807e4398f0 R08: 0000000000000001 R09: ffffffff8ff9babf R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffffed100fc8731e R14: 0000000000000001 R15: ffff8880b9c3a880 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7914f90370 CR3: 0000000011947000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:115 spin_lock include/linux/spinlock.h:349 [inline] net_tx_action+0x3d8/0xd20 net/core/dev.c:4935 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:132 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:553 Code: 89 de e8 1d bf 2c f8 84 db 75 ac e8 34 bb 2c f8 e8 1f fb 32 f8 eb 0c e8 28 bb 2c f8 0f 00 2d 81 6f c6 00 e8 1c bb 2c f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 97 bd 2c f8 48 85 db RSP: 0018:ffffffff8b807d60 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8b8bc6c0 RSI: ffffffff894ad784 RDI: 0000000000000000 RBP: ffff8880129a3064 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817dd2c8 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880129a3000 R14: ffff8880129a3064 R15: ffff888144e7c004 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:688 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:158 [inline] cpuidle_idle_call kernel/sched/idle.c:239 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403 start_kernel+0x47a/0x49b init/main.c:1135 secondary_startup_64_no_verify+0xb0/0xbb ---------------- Code disassembly (best guess): 0: fa cli 1: 83 e2 07 and $0x7,%edx 4: 38 d0 cmp %dl,%al 6: 7f 04 jg 0xc 8: 84 c0 test %al,%al a: 75 63 jne 0x6f c: 0f b6 07 movzbl (%rdi),%eax f: 40 38 c6 cmp %al,%sil 12: 74 35 je 0x49 14: 48 83 c4 10 add $0x10,%rsp 18: c3 retq 19: c3 retq 1a: e8 03 4c 4a 00 callq 0x4a4c22 1f: eb 07 jmp 0x28 21: 0f 00 2d 2a 8f 75 08 verw 0x8758f2a(%rip) # 0x8758f52 28: fb sti 29: f4 hlt * 2a: 48 83 c4 10 add $0x10,%rsp <-- trapping instruction 2e: c3 retq 2f: 89 74 24 0c mov %esi,0xc(%rsp) 33: 48 89 3c 24 mov %rdi,(%rsp) 37: e8 c6 46 4a 00 callq 0x4a4702 3c: 8b 74 24 0c mov 0xc(%rsp),%esi