------------[ cut here ]------------ raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 1 PID: 9731 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10 Modules linked in: CPU: 1 PID: 9731 Comm: kworker/1:6 Not tainted 5.12.0-rc3-next-20210319-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_power_efficient gc_worker RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10 Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d e8 13 a7 04 00 74 01 c3 48 c7 c7 a0 97 6b 89 c6 05 d7 13 a7 04 01 e8 de c3 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9731 at drivers/gpu/drm/vkms/vkms_crtc.c:25 vkms_vblank_simulate+0x342/0x3d0 drivers/gpu/drm/vkms/vkms_crtc.c:25 Modules linked in: CPU: 1 PID: 9731 Comm: kworker/1:6 Not tainted 5.12.0-rc3-next-20210319-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_power_efficient gc_worker RIP: 0010:vkms_vblank_simulate+0x342/0x3d0 drivers/gpu/drm/vkms/vkms_crtc.c:25 Code: 9f 00 00 00 49 8b 94 24 b8 01 00 00 4c 89 e9 bf 02 00 00 00 48 c7 c6 60 44 d9 89 e8 e8 bc ef ff e9 de fe ff ff e8 7e e3 23 fd <0f> 0b e9 6e fd ff ff e8 f2 03 68 fd e9 f8 fd ff ff 4c 89 f7 e8 e5 RSP: 0018:ffffc90000dc04e8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff888018625e58 RCX: 0000000000000100 RDX: ffff888060b65580 RSI: ffffffff84503022 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff84502d8d R11: 0000000000000000 R12: 0000000000000002 R13: ffff888018624d30 R14: 0000000000fe4c00 R15: ffffffff84502ce0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000540198 CR3: 000000002347b000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197 Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 19 dc 8d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc90000dc07b0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: ffff888060b65580 RSI: ffffffff815bf373 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8faf98a7 R10: ffffffff815bf369 R11: 0000000000000000 R12: ffffffff84b621e0 R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90000dc0810 console_unlock+0x7c9/0xc40 kernel/printk/printk.c:2659 vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174 vprintk_func+0x8d/0x260 kernel/printk/printk_safe.c:392 printk+0xba/0xed kernel/printk/printk.c:2222 show_opcodes.cold+0x1c/0x21 arch/x86/kernel/dumpstack.c:129 show_iret_regs+0xd/0x33 arch/x86/kernel/dumpstack.c:155 __show_regs+0x1e/0x60 arch/x86/kernel/process_64.c:73 show_regs+0x2f/0x40 arch/x86/kernel/dumpstack.c:469 __warn+0xe2/0x210 kernel/panic.c:595 report_bug+0x1bd/0x210 lib/bug.c:195 handle_bug+0x3c/0x60 arch/x86/kernel/traps.c:239 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:259 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:575 RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10 Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d e8 13 a7 04 00 74 01 c3 48 c7 c7 a0 97 6b 89 c6 05 d7 13 a7 04 01 e8 de c3 be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 RSP: 0018:ffffc90000dc0cb0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8880134c1808 RCX: 0000000000000000 RDX: ffff888060b65580 RSI: ffffffff815c2c75 RDI: fffff520001b8188 RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bc41e R11: 0000000000000000 R12: 0000000000000003 R13: ffffed1002698301 R14: 0000000000000001 R15: ffff8880b9d35fc0 kvm_wait arch/x86/kernel/kvm.c:865 [inline] kvm_wait+0xc9/0xe0 arch/x86/kernel/kvm.c:842 pv_wait arch/x86/include/asm/paravirt.h:597 [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:585 [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:113 spin_lock include/linux/spinlock.h:359 [inline] tcp_tsq_handler+0x1d/0x200 net/ipv4/tcp_output.c:1029 tcp_tasklet_func+0x2cc/0x560 net/ipv4/tcp_output.c:1063 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:784 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 common_interrupt+0xa4/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:623 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197 Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 19 dc 8d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc9000939fca0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000000 RDX: ffff888060b65580 RSI: ffffffff87474d7f RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8faf992f R10: ffffffff87474d75 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000010000 R14: 0000000000000000 R15: 0000000000000200 __seqprop_spinlock_sequence include/linux/seqlock.h:277 [inline] nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:312 [inline] gc_worker+0x205/0xc90 net/netfilter/nf_conntrack_core.c:1374 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294