------------[ cut here ]------------ raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 0 PID: 8391 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10 Modules linked in: CPU: 0 PID: 8391 Comm: syz-fuzzer Not tainted 5.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 e3 2d b0 04 00 74 01 c3 48 c7 c7 a0 8f 6b 89 c6 05 d2 2d b0 04 01 e8 67 cb 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: 0 PID: 8391 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x31e/0x3b0 drivers/gpu/drm/vkms/vkms_crtc.c:21 Modules linked in: CPU: 0 PID: 8391 Comm: syz-fuzzer Not tainted 5.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vkms_vblank_simulate+0x31e/0x3b0 drivers/gpu/drm/vkms/vkms_crtc.c:21 Code: 85 9e 00 00 00 48 8b 95 b8 01 00 00 4c 89 e1 bf 02 00 00 00 48 c7 c6 e0 f5 d5 89 e8 6c 09 f0 ff e9 e5 fe ff ff e8 c2 a2 2c fd <0f> 0b e9 88 fd ff ff e8 76 a5 70 fd e9 11 fe ff ff 4c 89 ef e8 69 RSP: 0000:ffffc90000007de8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff88801819de58 RCX: 0000000000000100 RDX: ffff8880116e9bc0 RSI: ffffffff8446fb2e RDI: 0000000000000003 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff8446f8b3 R11: 0000000000000000 R12: ffff88801819cd30 R13: 0000000000fe4c00 R14: ffff8880b9c26340 R15: ffffffff8446f810 FS: 000000c00002e490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000540198 CR3: 00000000131a6000 CR4: 0000000000350ef0 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1519 [inline] __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1583 hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1645 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+0x8e/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 c9 51 8e 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0000:ffffc9000132f6f0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: ffff8880116e9bc0 RSI: ffffffff815bcb4f RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa9e867 R10: ffffffff815bcb45 R11: 0000000000000000 R12: ffffffff84ac6fa0 R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc9000132f750 console_unlock+0x805/0xc80 kernel/printk/printk.c:2586 vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2098 vprintk_func+0x8d/0x1e0 kernel/printk/printk_safe.c:401 printk+0xba/0xed kernel/printk/printk.c:2146 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 e3 2d b0 04 00 74 01 c3 48 c7 c7 a0 8f 6b 89 c6 05 d2 2d b0 04 01 e8 67 cb 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: 0000:ffffc9000132fbf8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8880134e8c48 RCX: 0000000000000000 RDX: ffff8880116e9bc0 RSI: ffffffff815c0cb5 RDI: fffff52000265f71 RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815b9a4e R11: 0000000000000000 R12: 0000000000000003 R13: ffffed100269d189 R14: 0000000000000001 R15: ffff8880b9c35f40 kvm_wait arch/x86/kernel/kvm.c:860 [inline] kvm_wait+0xc9/0xe0 arch/x86/kernel/kvm.c:837 pv_wait arch/x86/include/asm/paravirt.h:564 [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:554 [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:354 [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+0x1d7/0x2d0 kernel/softirq.c:557 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 common_interrupt+0x51/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x60b6b6 Code: c0 00 0a 00 03 00 00 00 48 c7 83 c8 00 0a 00 00 00 00 00 4c 8b 8b 70 00 0a 00 4d 8d 91 00 80 ff ff 4d 85 d2 41 bb 00 00 00 00 <4d> 0f 4c d3 4c 8b 63 60 4c 2b a3 68 00 0a 00 4d 39 d4 7c 40 4c 89 RSP: 002b:000000c000f9d800 EFLAGS: 00000206 RAX: ffffffffffffffff RBX: 000000c00055a000 RCX: 000000000000e1f2 RDX: 0000000000010000 RSI: 0000000000001e12 RDI: 0000000000000003 RBP: 000000c000f9d860 R08: 0000000000000000 R09: 000000000000e1ee R10: 00000000000061ee R11: 0000000000000000 R12: 0000000000004001 R13: 0000000000001e16 R14: 00000000000061ea R15: fffffffffffe3d97