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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/1:0/24
Modules linked in:
CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 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 : ffff80008ee37840
x29: ffff80008ee378f0 x28: dfff800000000000 x27: ffff0000c6428080
x26: ffff80008ee37840 x25: dfff800000000000 x24: ffff700011dc6f08
x23: ffff800086fe98c0 x22: ffff0000c640c000 x21: ffff800087070bc0
x20: ffff0000c685c000 x19: 0000000000000000 x18: 1fffe00035ba3828
x17: 0000000000000003 x16: ffff800088bf7000 x15: ffff800088ca7ee0
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000002 x9 : e75aed7d2801ee00
x8 : e75aed7d2801ee00 x7 : ffff80008048e314 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f9194
x2 : 0000000100000000 x1 : 0000000000000000 x0 : ffff0000c685c000
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:3387 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
irq event stamp: 173126
hardirqs last  enabled at (173125): [<ffff8000869882e4>] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline]
hardirqs last  enabled at (173125): [<ffff8000869882e4>] __arm64_exit_to_kernel_mode+0x64/0x78 arch/arm64/kernel/entry-common.c:60
hardirqs last disabled at (173126): [<ffff8000869841d4>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445
softirqs last  enabled at (170742): [<ffff800082be9578>] local_bh_enable include/linux/bottom_half.h:33 [inline]
softirqs last  enabled at (170742): [<ffff800082be9578>] rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline]
softirqs last  enabled at (170742): [<ffff800082be9578>] keep_key_fresh drivers/net/wireguard/send.c:135 [inline]
softirqs last  enabled at (170742): [<ffff800082be9578>] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline]
softirqs last  enabled at (170742): [<ffff800082be9578>] wg_packet_tx_worker+0x518/0x75c drivers/net/wireguard/send.c:276
softirqs last disabled at (170740): [<ffff800082be9270>] local_bh_disable include/linux/bottom_half.h:20 [inline]
softirqs last disabled at (170740): [<ffff800082be9270>] rcu_read_lock_bh include/linux/rcupdate.h:902 [inline]
softirqs last disabled at (170740): [<ffff800082be9270>] keep_key_fresh drivers/net/wireguard/send.c:129 [inline]
softirqs last disabled at (170740): [<ffff800082be9270>] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline]
softirqs last disabled at (170740): [<ffff800082be9270>] wg_packet_tx_worker+0x210/0x75c drivers/net/wireguard/send.c:276
---[ end trace 0000000000000000 ]---