------------[ cut here ]------------
faux_driver vkms: [drm] vblank wait timed out on crtc 0
WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:2/1000
Modules linked in:
CPU: 1 UID: 0 PID: 1000 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: events drm_fb_helper_damage_work
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331
lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329
sp : ffff800093717840
x29: ffff8000937178f0 x28: dfff800000000000 x27: ffff0000c48bf880
x26: ffff800093717840 x25: dfff800000000000 x24: ffff7000126e2f08
x23: ffff800086ff9e80 x22: ffff0000c674b000 x21: ffff8000870811c0
x20: ffff0000c675c000 x19: 0000000000000000 x18: 1fffe00035bb1028
x17: 0000000000000003 x16: ffff800088b97000 x15: ffff800088c480e0
x14: 00000000001ca8e3 x13: 0000000000000001 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000002 x9 : 86ed954f8d2e8400
x8 : 86ed954f8d2e8400 x7 : ffff8000804903d4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802fa194
x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c675c000
Call trace:
 drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (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:327 [inline]
 drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
irq event stamp: 79434
hardirqs last  enabled at (79433): [<ffff80008049396c>] vprintk_store+0x924/0xb94 kernel/printk/printk.c:2385
hardirqs last disabled at (79434): [<ffff800086991a8c>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445
softirqs last  enabled at (76560): [<ffff8000803121a4>] softirq_handle_end kernel/softirq.c:491 [inline]
softirqs last  enabled at (76560): [<ffff8000803121a4>] handle_softirqs+0xc28/0xd98 kernel/softirq.c:673
softirqs last disabled at (76521): [<ffff8000800204c0>] __do_softirq+0x14/0x20 kernel/softirq.c:679
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
faux_driver vkms: [drm] vblank wait timed out on crtc 0
WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331, CPU#1: kworker/1:2/1000
Modules linked in:
CPU: 1 UID: 0 PID: 1000 Comm: kworker/1:2 Tainted: G        W           syzkaller #0 PREEMPT 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: events drm_fb_helper_damage_work
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331
lr : drm_crtc_wait_one_vblank+0x408/0x440 drivers/gpu/drm/drm_vblank.c:1329
sp : ffff800093717840
x29: ffff8000937178f0 x28: dfff800000000000 x27: ffff0000c48bf880
x26: ffff800093717840 x25: dfff800000000000 x24: ffff7000126e2f08
x23: ffff800086ff9e80 x22: ffff0000c674b000 x21: ffff8000870811c0
x20: ffff0000c675c000 x19: 0000000000000000 x18: 1fffe00035bb1028
x17: 0000000000000003 x16: ffff800088b97000 x15: ffff800088c480e0
x14: 00000000001ca9bc x13: 0000000000000001 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000002 x9 : 86ed954f8d2e8400
x8 : 86ed954f8d2e8400 x7 : ffff8000804903d4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802fa194
x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c675c000
Call trace:
 drm_crtc_wait_one_vblank+0x410/0x440 drivers/gpu/drm/drm_vblank.c:1331 (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:327 [inline]
 drm_fb_helper_damage_work+0x520/0xbc0 drivers/gpu/drm/drm_fb_helper.c:365
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
irq event stamp: 79506
hardirqs last  enabled at (79505): [<ffff80008049396c>] vprintk_store+0x924/0xb94 kernel/printk/printk.c:2385
hardirqs last disabled at (79506): [<ffff800086991a8c>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445
softirqs last  enabled at (79460): [<ffff8000803121a4>] softirq_handle_end kernel/softirq.c:491 [inline]
softirqs last  enabled at (79460): [<ffff8000803121a4>] handle_softirqs+0xc28/0xd98 kernel/softirq.c:673
softirqs last disabled at (79437): [<ffff8000800204c0>] __do_softirq+0x14/0x20 kernel/softirq.c:679
---[ end trace 0000000000000000 ]---