------------[ cut here ]------------
WARNING: CPU: 1 PID: 48 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: 48 Comm: kworker/1:2 Not tainted 6.10.0-rc4-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events output_poll_execute
Call trace: 
[<818d4a38>] (dump_backtrace) from [<818d4b34>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe14a0
[<818d4b1c>] (show_stack) from [<818f2164>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d4b1c>] (show_stack) from [<818f2164>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f2110>] (dump_stack_lvl) from [<818f21a4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f218c>] (dump_stack) from [<818d55dc>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d54bc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d54bc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fca110 r0:81fd1d60
 r7:80a1df68
[<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 r7:82052c70 r6:df925bdc r5:82f09800 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80a1df68>] (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 r6:8423b3c0 r5:8352f050
 r4:00000000
[<80a1dd04>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a1f3b4>] (drm_atomic_helper_wait_for_vblanks drivers/gpu/drm/drm_atomic_helper.c:1658 [inline])
[<80a1dd04>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a1f3b4>] (drm_atomic_helper_commit_tail+0x84/0x94 drivers/gpu/drm/drm_atomic_helper.c:1758)
 r10:8423b11c r9:00000000 r8:00000000 r7:00000001 r6:9a78ff50 r5:84095400
 r4:8423b3c0
[<80a1f330>] (drm_atomic_helper_commit_tail) from [<80a209b8>] (commit_tail+0x178/0x1a0 drivers/gpu/drm/drm_atomic_helper.c:1835)
 r5:00000000 r4:8423b3c0
[<80a20840>] (commit_tail) from [<80a20b48>] (drm_atomic_helper_commit+0x150/0x174 drivers/gpu/drm/drm_atomic_helper.c:2073)
 r9:00000000 r8:8423b3ec r7:00000000 r6:84095400 r5:00000000 r4:8423b3c0
[<80a209f8>] (drm_atomic_helper_commit) from [<809dc920>] (drm_atomic_commit+0xc0/0xf4 drivers/gpu/drm/drm_atomic.c:1514)
 r9:00000000 r8:8352f520 r7:00000001 r6:84095400 r5:00000000 r4:8423b3c0
[<809dc860>] (drm_atomic_commit) from [<809e318c>] (drm_client_modeset_commit_atomic+0x21c/0x25c drivers/gpu/drm/drm_client_modeset.c:1063)
 r6:00000001 r5:840955ac r4:8423b3c0
[<809e2f70>] (drm_client_modeset_commit_atomic) from [<809e32a4>] (drm_client_modeset_commit_locked+0x64/0x18c drivers/gpu/drm/drm_client_modeset.c:1166)
 r10:840955ec r9:00000001 r8:84095498 r7:840b2418 r6:840b2400 r5:84095400
 r4:84095400
[<809e3240>] (drm_client_modeset_commit_locked) from [<809e33f8>] (drm_client_modeset_commit+0x2c/0x48 drivers/gpu/drm/drm_client_modeset.c:1192)
 r9:00000001 r8:84095498 r7:8204c42c r6:840b24b8 r5:84095400 r4:840b2400
[<809e33cc>] (drm_client_modeset_commit) from [<80a2dd48>] (__drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:251 [inline])
[<809e33cc>] (drm_client_modeset_commit) from [<80a2dd48>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x8c/0xc4 drivers/gpu/drm/drm_fb_helper.c:230)
 r5:840b2400 r4:00000000
[<80a2dcbc>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a2dcac>] (drm_fb_helper_set_par drivers/gpu/drm/drm_fb_helper.c:1344 [inline])
[<80a2dcbc>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a2dcac>] (drm_fb_helper_hotplug_event+0xf8/0x108 drivers/gpu/drm/drm_fb_helper.c:1990)
 r7:8204c42c r6:840954ac r5:840b24b8 r4:840b2400
[<80a2dbb4>] (drm_fb_helper_hotplug_event) from [<80a17ea0>] (drm_fbdev_dma_client_hotplug+0x24/0xc8 drivers/gpu/drm/drm_fbdev_dma.c:182)
 r5:84095400 r4:840b2400
[<80a17e7c>] (drm_fbdev_dma_client_hotplug) from [<809e271c>] (drm_client_dev_hotplug drivers/gpu/drm/drm_client.c:238 [inline])
[<80a17e7c>] (drm_fbdev_dma_client_hotplug) from [<809e271c>] (drm_client_dev_hotplug+0xbc/0x114 drivers/gpu/drm/drm_client.c:217)
 r7:8204c42c r6:840954ac r5:84095400 r4:840b2400
[<809e2660>] (drm_client_dev_hotplug) from [<80a28a38>] (drm_kms_helper_hotplug_event drivers/gpu/drm/drm_probe_helper.c:738 [inline])
[<809e2660>] (drm_client_dev_hotplug) from [<80a28a38>] (output_poll_execute+0x270/0x2c4 drivers/gpu/drm/drm_probe_helper.c:854)
 r9:00000001 r8:840954d8 r7:00000001 r6:84095400 r5:00000001 r4:83406f80
[<80a287c8>] (output_poll_execute) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231)
 r10:82c16205 r9:82f09800 r8:01800000 r7:ddde40c0 r6:82c16200 r5:840955ec
 r4:83406f80
[<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)
 r10:82f09800 r9:83406fac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0
 r4:83406f80
[<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df91de90 r8:8340ba00 r7:83406f80 r6:80267c04 r5:82f09800
 r4:8340b900
[<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdf925fb0 to 0xdf925ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:8340b900
Rebooting in 86400 seconds..