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faux_driver vkms: [drm] vblank wait timed out on crtc 0
WARNING: drivers/gpu/drm/drm_vblank.c:1318 at drm_wait_one_vblank+0x9f0/0xa50 drivers/gpu/drm/drm_vblank.c:1318, CPU#0: kworker/0:9/6682
Modules linked in:
CPU: 0 UID: 0 PID: 6682 Comm: kworker/0:9 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: events drm_fb_helper_damage_work
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : drm_wait_one_vblank+0x9f0/0xa50 drivers/gpu/drm/drm_vblank.c:1318
lr : drm_wait_one_vblank+0x9f0/0xa50 drivers/gpu/drm/drm_vblank.c:1318
sp : ffff8000b2917820
x29: ffff8000b2917910 x28: 00000000000007fa x27: 0000000000000000
x26: dfff800000000000 x25: 1fffe00019585474 x24: ffff700016522f0c
x23: ffff80008c3341a0 x22: ffff0000cac20000 x21: ffff80008c5c1680
x20: ffff0000cac2a000 x19: 0000000000000000 x18: 1fffe0003377d090
x17: ffff80008f86e000 x16: ffff800082e5e68c x15: 0000000000000001
x14: 1fffe0003377fb48 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093398d48 x10: 0000000000000003 x9 : aaf2c4a1f4886900
x8 : aaf2c4a1f4886900 x7 : ffff80008049ea88 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000006 x1 : ffff80008b5a9ce0 x0 : 0000000000000001
Call trace:
 drm_wait_one_vblank+0x9f0/0xa50 drivers/gpu/drm/drm_vblank.c:1318 (P)
 drm_crtc_wait_one_vblank+0x50/0x8c drivers/gpu/drm/drm_vblank.c:1334
 drm_client_modeset_wait_for_vblank+0xc8/0xf0 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+0xb4/0x568 drivers/gpu/drm/drm_fb_helper.c:369
 process_one_work+0x7c0/0x1558 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3421
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
irq event stamp: 21648
hardirqs last  enabled at (21647): [<ffff80008049eb1c>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1570 [inline]
hardirqs last  enabled at (21647): [<ffff80008049eb1c>] finish_lock_switch+0xb0/0x1c0 kernel/sched/core.c:4995
hardirqs last disabled at (21648): [<ffff80008af93820>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412
softirqs last  enabled at (21582): [<ffff8000803e1080>] softirq_handle_end kernel/softirq.c:468 [inline]
softirqs last  enabled at (21582): [<ffff8000803e1080>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650
softirqs last disabled at (21535): [<ffff800080020fb4>] __do_softirq+0x14/0x20 kernel/softirq.c:656
---[ end trace 0000000000000000 ]---