------------[ cut here ]------------
faux_driver vkms: [drm] vblank wait timed out on crtc 0
WARNING: drivers/gpu/drm/drm_vblank.c:1318 at drm_wait_one_vblank+0x18c/0x250 drivers/gpu/drm/drm_vblank.c:1318, CPU#0: kworker/0:3/3432
Modules linked in:
CPU: 0 UID: 0 PID: 3432 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
Workqueue: events drm_fb_helper_damage_work
pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : drm_wait_one_vblank+0x18c/0x250 drivers/gpu/drm/drm_vblank.c:1318
lr : drm_wait_one_vblank+0x18c/0x250 drivers/gpu/drm/drm_vblank.c:1318
sp : ffff800089cd3ca0
x29: ffff800089cd3ca0 x28: 0000000000000000 x27: 0000000000000000
x26: ffff800082a29ba8 x25: 0000000000000000 x24: f4f0000003f68000
x23: 0000000000007b7c x22: f0f0000004fc5888 x21: 0000000000000000
x20: 0000000000000000 x19: f3f0000004596000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffd5877480
x14: 00000000000000b1 x13: 0000000000000000 x12: ffff800082a01290
x11: 00000000000000c0 x10: 25f153d6c7e9e52e x9 : 8a2ed7223b7abd21
x8 : f4f0000003f69018 x7 : 0000000000000004 x6 : ffff800082a2d6d0
x5 : 0000000000000002 x4 : fbffff3fffffffff x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4f0000003f68000
Call trace:
 drm_wait_one_vblank+0x18c/0x250 drivers/gpu/drm/drm_vblank.c:1318 (P)
 drm_crtc_wait_one_vblank+0x1c/0x28 drivers/gpu/drm/drm_vblank.c:1334
 drm_client_modeset_wait_for_vblank+0x74/0x88 drivers/gpu/drm/drm_client_modeset.c:1330
 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:334 [inline]
 drm_fb_helper_damage_work+0x4c/0x1a4 drivers/gpu/drm/drm_fb_helper.c:369
 process_one_work+0x178/0x2cc kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x24c/0x354 kernel/workqueue.c:3421
 kthread+0x130/0x1fc kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
---[ end trace 0000000000000000 ]---