WARNING: CPU: 1 PID: 7717 at drivers/gpu/drm/vkms/vkms_crtc.c:40 vkms_vblank_simulate+0x262/0x2c0 drivers/gpu/drm/vkms/vkms_crtc.c:40
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 7717 Comm: syz-executor097 Not tainted 5.0.0-next-20190306 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:vkms_vblank_simulate+0x262/0x2c0 drivers/gpu/drm/vkms/vkms_crtc.c:40
Code: c7 c7 80 7b bc 87 e8 3d 66 bb ff e9 2c fe ff ff e8 83 dc 97 fd 48 8b 45 d0 49 89 86 40 02 00 00 e9 7a ff ff ff e8 6e dc 97 fd <0f> 0b e9 f4 fe ff ff e8 52 de cf fd e9 34 fe ff ff e8 a8 de cf fd
RSP: 0018:ffff8880ae907dd8 EFLAGS: 00010006
RAX: ffff8880a81cc300 RBX: ffff8880ae925d80 RCX: ffffffff83d8b6b3
RDX: 0000000000010000 RSI: ffffffff83d8b7c2 RDI: 0000000000000007
RBP: ffff8880ae907e08 R08: ffff8880a81cc300 R09: 0000000000000002
R10: fffffbfff14b06f0 R11: ffff8880a81cc300 R12: 000000000006e0f5
R13: ffff888219121a40 R14: 0000000000000000 R15: ffff888219120f18
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x33e/0xde0 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
 smp_apic_timer_interrupt+0x120/0x570 arch/x86/kernel/apic/apic.c:1060
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:184
Code: 48 c7 c0 b0 95 92 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 02 18 83 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 cc 42 3e fa 65 8b 05 c5 6f f2 78
RSP: 0018:ffff88809fdff938 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11252b6 RBX: 0000000000000286 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000006 RDI: 0000000000000286
RBP: ffff88809fdff948 R08: ffff8880a81cc300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882191204b0
R13: 0000000000000000 R14: ffff8882191204b0 R15: ffff8880a40db648
 spin_unlock_irqrestore include/linux/spinlock.h:384 [inline]
 drm_vblank_get+0x150/0x1e0 drivers/gpu/drm/drm_vblank.c:1006
 drm_wait_vblank_ioctl+0x4f8/0x17a0 drivers/gpu/drm/drm_vblank.c:1627
 drm_ioctl_kernel+0x23e/0x2e0 drivers/gpu/drm/drm_ioctl.c:770
 drm_ioctl+0x545/0xa50 drivers/gpu/drm/drm_ioctl.c:870
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x443ca9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 7b d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffdb2ea33b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443ca9
RDX: 0000000020000080 RSI: 00000000c018643a RDI: 0000000000000003
RBP: 00000000006ce018 R08: 0000000000000000 R09: 00000000004002e0
R10: 000000000000000f R11: 0000000000000246 R12: 00000000004019b0
R13: 0000000000401a40 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..