------------[ cut here ]------------
WARNING: CPU: 1 PID: 89 at drivers/gpu/drm/drm_atomic_helper.c:1682 drm_atomic_helper_wait_for_vblanks.part.0+0x264/0x26c drivers/gpu/drm/drm_atomic_helper.c:1682
[CRTC:34:crtc-0] vblank wait timed out
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 PID: 89 Comm: kworker/1:1 Not tainted 6.10.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events output_poll_execute
Call trace: 
[<818d4a58>] (dump_backtrace) from [<818d4b54>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe14ac
[<818d4b3c>] (show_stack) from [<818f2184>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d4b3c>] (show_stack) from [<818f2184>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f2130>] (dump_stack_lvl) from [<818f21c4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f21ac>] (dump_stack) from [<818d55fc>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d54dc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d54dc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fca11c r0:81fd1d6c
 r7:80a1df28
[<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693)
[<80243f44>] (__warn) from [<802442ac>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:726)
 r8:00000009 r7:82052c98 r6:df9a1bdc r5:8348c800 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80a1df28>] (drm_atomic_helper_wait_for_vblanks.part.0+0x264/0x26c drivers/gpu/drm/drm_atomic_helper.c:1682)
 r10:00000000 r9:00000001 r8:00000001 r7:00000000 r6:82f52cc0 r5:83f33050
 r4:00000000
[<80a1dcc4>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a1f374>] (drm_atomic_helper_wait_for_vblanks drivers/gpu/drm/drm_atomic_helper.c:1658 [inline])
[<80a1dcc4>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a1f374>] (drm_atomic_helper_commit_tail+0x84/0x94 drivers/gpu/drm/drm_atomic_helper.c:1758)
 r10:83e96bdc r9:00000000 r8:00000000 r7:00000001 r6:ab115360 r5:83dfa800
 r4:82f52cc0
[<80a1f2f0>] (drm_atomic_helper_commit_tail) from [<80a20978>] (commit_tail+0x178/0x1a0 drivers/gpu/drm/drm_atomic_helper.c:1835)
 r5:00000000 r4:82f52cc0
[<80a20800>] (commit_tail) from [<80a20b08>] (drm_atomic_helper_commit+0x150/0x174 drivers/gpu/drm/drm_atomic_helper.c:2073)
 r9:00000000 r8:82f52cec r7:00000000 r6:83dfa800 r5:00000000 r4:82f52cc0
[<80a209b8>] (drm_atomic_helper_commit) from [<809dc8e0>] (drm_atomic_commit+0xc0/0xf4 drivers/gpu/drm/drm_atomic.c:1514)
 r9:00000000 r8:83f33520 r7:00000001 r6:83dfa800 r5:00000000 r4:82f52cc0
[<809dc820>] (drm_atomic_commit) from [<809e314c>] (drm_client_modeset_commit_atomic+0x21c/0x25c drivers/gpu/drm/drm_client_modeset.c:1063)
 r6:00000001 r5:83dfa9ac r4:82f52cc0
[<809e2f30>] (drm_client_modeset_commit_atomic) from [<809e3264>] (drm_client_modeset_commit_locked+0x64/0x18c drivers/gpu/drm/drm_client_modeset.c:1166)
 r10:83dfa9ec r9:00000001 r8:83dfa898 r7:8407ce18 r6:8407ce00 r5:83dfa800
 r4:83dfa800
[<809e3200>] (drm_client_modeset_commit_locked) from [<809e33b8>] (drm_client_modeset_commit+0x2c/0x48 drivers/gpu/drm/drm_client_modeset.c:1192)
 r9:00000001 r8:83dfa898 r7:8204c454 r6:8407ceb8 r5:83dfa800 r4:8407ce00
[<809e338c>] (drm_client_modeset_commit) from [<80a2dd08>] (__drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:251 [inline])
[<809e338c>] (drm_client_modeset_commit) from [<80a2dd08>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x8c/0xc4 drivers/gpu/drm/drm_fb_helper.c:230)
 r5:8407ce00 r4:00000000
[<80a2dc7c>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a2dc6c>] (drm_fb_helper_set_par drivers/gpu/drm/drm_fb_helper.c:1344 [inline])
[<80a2dc7c>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a2dc6c>] (drm_fb_helper_hotplug_event+0xf8/0x108 drivers/gpu/drm/drm_fb_helper.c:1990)
 r7:8204c454 r6:83dfa8ac r5:8407ceb8 r4:8407ce00
[<80a2db74>] (drm_fb_helper_hotplug_event) from [<80a17e60>] (drm_fbdev_dma_client_hotplug+0x24/0xc8 drivers/gpu/drm/drm_fbdev_dma.c:182)
 r5:83dfa800 r4:8407ce00
[<80a17e3c>] (drm_fbdev_dma_client_hotplug) from [<809e26dc>] (drm_client_dev_hotplug drivers/gpu/drm/drm_client.c:238 [inline])
[<80a17e3c>] (drm_fbdev_dma_client_hotplug) from [<809e26dc>] (drm_client_dev_hotplug+0xbc/0x114 drivers/gpu/drm/drm_client.c:217)
 r7:8204c454 r6:83dfa8ac r5:83dfa800 r4:8407ce00
[<809e2620>] (drm_client_dev_hotplug) from [<80a289f8>] (drm_kms_helper_hotplug_event drivers/gpu/drm/drm_probe_helper.c:738 [inline])
[<809e2620>] (drm_client_dev_hotplug) from [<80a289f8>] (output_poll_execute+0x270/0x2c4 drivers/gpu/drm/drm_probe_helper.c:854)
 r9:00000001 r8:83dfa8d8 r7:00000001 r6:83dfa800 r5:00000001 r4:8353a680
[<80a28788>] (output_poll_execute) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231)
 r10:82c16205 r9:8348c800 r8:01800000 r7:ddde40c0 r6:82c16200 r5:83dfa9ec
 r4:8353a680
[<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline])
[<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393)
 r10:8348c800 r9:8353a6ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0
 r4:8353a680
[<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df87de90 r8:834b2d00 r7:8353a680 r6:80267c04 r5:8348c800
 r4:8353eb80
[<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdf9a1fb0 to 0xdf9a1ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:8353eb80
Rebooting in 86400 seconds..