------------[ cut here ]------------
WARNING: CPU: 1 PID: 24 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 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted 6.12.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events output_poll_execute
Call trace: 
[<81999710>] (dump_backtrace) from [<8199980c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622f44 r5:00000000 r4:8203d7c4
[<819997f4>] (show_stack) from [<819b7ca8>] (__dump_stack lib/dump_stack.c:94 [inline])
[<819997f4>] (show_stack) from [<819b7ca8>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<819b7c54>] (dump_stack_lvl) from [<819b7ce8>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82870d18
[<819b7cd0>] (dump_stack) from [<8199a338>] (panic+0x120/0x374 kernel/panic.c:354)
[<8199a218>] (panic) from [<802420e0>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<8199a218>] (panic) from [<802420e0>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c5c4 r2:00000001 r1:82025b98 r0:8202d600
 r7:80a5d198
[<8024206c>] (check_panic_on_warn) from [<80242244>] (__warn+0x80/0x188 kernel/panic.c:748)
[<802421c4>] (__warn) from [<80242534>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:783)
 r8:00000009 r7:820b1090 r6:df87dbdc r5:82e43000 r4:00000000
[<80242350>] (warn_slowpath_fmt) from [<80a5d198>] (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 r6:842c7dc0 r5:83f0b050
 r4:00000000
[<80a5cf34>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a5e5e4>] (drm_atomic_helper_wait_for_vblanks drivers/gpu/drm/drm_atomic_helper.c:1658 [inline])
[<80a5cf34>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a5e5e4>] (drm_atomic_helper_commit_tail+0x84/0x94 drivers/gpu/drm/drm_atomic_helper.c:1758)
 r10:842c265c r9:00000000 r8:00000000 r7:00000001 r6:ebde6d60 r5:84189400
 r4:842c7dc0
[<80a5e560>] (drm_atomic_helper_commit_tail) from [<80a5fbe8>] (commit_tail+0x178/0x1a0 drivers/gpu/drm/drm_atomic_helper.c:1835)
 r5:00000000 r4:842c7dc0
[<80a5fa70>] (commit_tail) from [<80a5fd78>] (drm_atomic_helper_commit+0x150/0x174 drivers/gpu/drm/drm_atomic_helper.c:2073)
 r9:00000000 r8:842c7dec r7:00000000 r6:84189400 r5:00000000 r4:842c7dc0
[<80a5fc28>] (drm_atomic_helper_commit) from [<80a19e6c>] (drm_atomic_commit+0xc4/0xf8 drivers/gpu/drm/drm_atomic.c:1516)
 r9:00000000 r8:83f0b520 r7:00000001 r6:00000001 r5:84189400 r4:842c7dc0
[<80a19da8>] (drm_atomic_commit) from [<80a20734>] (drm_client_modeset_commit_atomic+0x21c/0x25c drivers/gpu/drm/drm_client_modeset.c:1068)
 r5:841895ac r4:842c7dc0
[<80a20518>] (drm_client_modeset_commit_atomic) from [<80a2084c>] (drm_client_modeset_commit_locked+0x64/0x18c drivers/gpu/drm/drm_client_modeset.c:1171)
 r10:841895ec r9:00000000 r8:84189498 r7:83bea218 r6:83bea200 r5:84189400
 r4:84189400
[<80a207e8>] (drm_client_modeset_commit_locked) from [<80a209a0>] (drm_client_modeset_commit+0x2c/0x48 drivers/gpu/drm/drm_client_modeset.c:1197)
 r9:00000000 r8:84189498 r7:820aa590 r6:83bea2b8 r5:84189400 r4:83bea200
[<80a20974>] (drm_client_modeset_commit) from [<80a6c11c>] (__drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:237 [inline])
[<80a20974>] (drm_client_modeset_commit) from [<80a6c11c>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x8c/0xc4 drivers/gpu/drm/drm_fb_helper.c:216)
 r5:83bea200 r4:00000000
[<80a6c090>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a6c080>] (drm_fb_helper_set_par drivers/gpu/drm/drm_fb_helper.c:1345 [inline])
[<80a6c090>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a6c080>] (drm_fb_helper_hotplug_event+0xf8/0x108 drivers/gpu/drm/drm_fb_helper.c:1988)
 r7:820aa590 r6:841894ac r5:83bea2b8 r4:83bea200
[<80a6bf88>] (drm_fb_helper_hotplug_event) from [<80a55d80>] (drm_fbdev_dma_client_hotplug+0x24/0xc8 drivers/gpu/drm/drm_fbdev_dma.c:270)
 r5:84189400 r4:83bea200
[<80a55d5c>] (drm_fbdev_dma_client_hotplug) from [<80a1fcc4>] (drm_client_dev_hotplug drivers/gpu/drm/drm_client.c:238 [inline])
[<80a55d5c>] (drm_fbdev_dma_client_hotplug) from [<80a1fcc4>] (drm_client_dev_hotplug+0xbc/0x114 drivers/gpu/drm/drm_client.c:217)
 r7:820aa590 r6:841894ac r5:84189400 r4:83bea200
[<80a1fc08>] (drm_client_dev_hotplug) from [<80a66fc0>] (drm_kms_helper_hotplug_event drivers/gpu/drm/drm_probe_helper.c:734 [inline])
[<80a1fc08>] (drm_client_dev_hotplug) from [<80a66fc0>] (output_poll_execute+0x2ac/0x2c8 drivers/gpu/drm/drm_probe_helper.c:846)
 r9:00000000 r8:841894d8 r7:00000001 r6:84189400 r5:00000001 r4:82cb6480
[<80a66d14>] (output_poll_execute) from [<80266034>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229)
 r10:82c18205 r9:82e43000 r8:01800000 r7:ddde40c0 r6:82c18200 r5:841895ec
 r4:82cb6480
[<80265e80>] (process_one_work) from [<80266c18>] (process_scheduled_works kernel/workqueue.c:3310 [inline])
[<80265e80>] (process_one_work) from [<80266c18>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391)
 r10:82e43000 r9:82cb64ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0
 r4:82cb6480
[<80266a2c>] (worker_thread) from [<8026fc94>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df819d48 r8:82cc8840 r7:82cb6480 r6:80266a2c r5:82e43000
 r4:82cc8600
[<8026fb90>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf87dfb0 to 0xdf87dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fb90 r4:82cc8600
Rebooting in 86400 seconds..