------------[ cut here ]------------
faux_driver vkms: [drm] vblank wait timed out on crtc 0
WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#1: kworker/1:1/26
Modules linked in:
CPU: 1 UID: 0 PID: 26 Comm: kworker/1:1 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: events drm_fb_helper_damage_work
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322
lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320
sp : ffff80008eb078e0
x29: ffff80008eb07990 x28: dfff800000000000 x27: ffff0000c6f93880
x26: ffff80008eb078e0 x25: dfff800000000000 x24: ffff700011d60f1c
x23: ffff800086d6ff20 x22: ffff0000c6ee7000 x21: ffff800086df11e0
x20: ffff0000c6f8c000 x19: 0000000000000000 x18: 000000005f810493
x17: 000000008855e44b x16: dfff800000000000 x15: 000000001030d8e2
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
x11: 000000000000227c x10: 0000000000ff0100 x9 : 18622607f979b600
x8 : 18622607f979b600 x7 : ffff80008047caa0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f1374
x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c6f8c000
Call trace:
 drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P)
 drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331
 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline]
 drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x79c/0x1098 kernel/workqueue.c:3397
 worker_thread+0x754/0xba0 kernel/workqueue.c:3478
 kthread+0x2f8/0x3c8 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
irq event stamp: 188388
hardirqs last  enabled at (188387): [<ffff80008673eb94>] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline]
hardirqs last  enabled at (188387): [<ffff80008673eb94>] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62
hardirqs last disabled at (188388): [<ffff80008673aac0>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:429
softirqs last  enabled at (188382): [<ffff800080309080>] softirq_handle_end kernel/softirq.c:468 [inline]
softirqs last  enabled at (188382): [<ffff800080309080>] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650
softirqs last disabled at (188357): [<ffff8000800204b0>] __do_softirq+0x14/0x20 kernel/softirq.c:656
---[ end trace 0000000000000000 ]---