------------[ 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 6.11.0-rc6-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events output_poll_execute
Call trace: 
[<8195d0f8>] (dump_backtrace) from [<8195d1f4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:826228c4 r5:00000000 r4:8200ca84
[<8195d1dc>] (show_stack) from [<8197af18>] (__dump_stack lib/dump_stack.c:93 [inline])
[<8195d1dc>] (show_stack) from [<8197af18>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:119)
[<8197aec4>] (dump_stack_lvl) from [<8197af58>] (dump_stack+0x18/0x1c lib/dump_stack.c:128)
 r5:00000000 r4:8286dd18
[<8197af40>] (dump_stack) from [<8195dc9c>] (panic+0x120/0x368 kernel/panic.c:354)
[<8195db7c>] (panic) from [<802421e4>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<8195db7c>] (panic) from [<802421e4>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c5c4 r2:00000001 r1:81ff52a8 r0:81ffd080
 r7:80a2e2d0
[<80242170>] (check_panic_on_warn) from [<80242338>] (__warn+0x7c/0x180 kernel/panic.c:741)
[<802422bc>] (__warn) from [<80242624>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:774)
 r8:00000009 r7:8207fd58 r6:df87dbdc r5:82e43000 r4:00000000
[<80242440>] (warn_slowpath_fmt) from [<80a2e2d0>] (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 r6:83ed29c0 r5:836a0050
 r4:00000000
[<80a2e06c>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a2f71c>] (drm_atomic_helper_wait_for_vblanks drivers/gpu/drm/drm_atomic_helper.c:1658 [inline])
[<80a2e06c>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a2f71c>] (drm_atomic_helper_commit_tail+0x84/0x94 drivers/gpu/drm/drm_atomic_helper.c:1758)
 r10:82f4f35c r9:00000000 r8:00000000 r7:00000001 r6:cd2bf9e0 r5:8377bc00
 r4:83ed29c0
[<80a2f698>] (drm_atomic_helper_commit_tail) from [<80a30d20>] (commit_tail+0x178/0x1a0 drivers/gpu/drm/drm_atomic_helper.c:1835)
 r5:00000000 r4:83ed29c0
[<80a30ba8>] (commit_tail) from [<80a30eb0>] (drm_atomic_helper_commit+0x150/0x174 drivers/gpu/drm/drm_atomic_helper.c:2073)
 r9:00000000 r8:83ed29ec r7:00000000 r6:8377bc00 r5:00000000 r4:83ed29c0
[<80a30d60>] (drm_atomic_helper_commit) from [<809eb1e8>] (drm_atomic_commit+0xc4/0xf8 drivers/gpu/drm/drm_atomic.c:1522)
 r9:00000000 r8:836a0520 r7:00000001 r6:00000001 r5:8377bc00 r4:83ed29c0
[<809eb124>] (drm_atomic_commit) from [<809f1a7c>] (drm_client_modeset_commit_atomic+0x21c/0x25c drivers/gpu/drm/drm_client_modeset.c:1068)
 r5:8377bdac r4:83ed29c0
[<809f1860>] (drm_client_modeset_commit_atomic) from [<809f1b94>] (drm_client_modeset_commit_locked+0x64/0x18c drivers/gpu/drm/drm_client_modeset.c:1171)
 r10:8377bdec r9:00000001 r8:8377bc98 r7:83b9a418 r6:83b9a400 r5:8377bc00
 r4:8377bc00
[<809f1b30>] (drm_client_modeset_commit_locked) from [<809f1ce8>] (drm_client_modeset_commit+0x2c/0x48 drivers/gpu/drm/drm_client_modeset.c:1197)
 r9:00000001 r8:8377bc98 r7:82079324 r6:83b9a4b8 r5:8377bc00 r4:83b9a400
[<809f1cbc>] (drm_client_modeset_commit) from [<80a3d8ac>] (__drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:244 [inline])
[<809f1cbc>] (drm_client_modeset_commit) from [<80a3d8ac>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x8c/0xc4 drivers/gpu/drm/drm_fb_helper.c:223)
 r5:83b9a400 r4:00000000
[<80a3d820>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a3d810>] (drm_fb_helper_set_par drivers/gpu/drm/drm_fb_helper.c:1351 [inline])
[<80a3d820>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a3d810>] (drm_fb_helper_hotplug_event+0xf8/0x108 drivers/gpu/drm/drm_fb_helper.c:1994)
 r7:82079324 r6:8377bcac r5:83b9a4b8 r4:83b9a400
[<80a3d718>] (drm_fb_helper_hotplug_event) from [<80a26fb0>] (drm_fbdev_dma_client_hotplug+0x24/0xc8 drivers/gpu/drm/drm_fbdev_dma.c:224)
 r5:8377bc00 r4:83b9a400
[<80a26f8c>] (drm_fbdev_dma_client_hotplug) from [<809f100c>] (drm_client_dev_hotplug drivers/gpu/drm/drm_client.c:238 [inline])
[<80a26f8c>] (drm_fbdev_dma_client_hotplug) from [<809f100c>] (drm_client_dev_hotplug+0xbc/0x114 drivers/gpu/drm/drm_client.c:217)
 r7:82079324 r6:8377bcac r5:8377bc00 r4:83b9a400
[<809f0f50>] (drm_client_dev_hotplug) from [<80a38e68>] (drm_kms_helper_hotplug_event drivers/gpu/drm/drm_probe_helper.c:738 [inline])
[<809f0f50>] (drm_client_dev_hotplug) from [<80a38e68>] (output_poll_execute+0x270/0x2c4 drivers/gpu/drm/drm_probe_helper.c:854)
 r9:00000001 r8:8377bcd8 r7:00000001 r6:8377bc00 r5:00000001 r4:82cb5580
[<80a38bf8>] (output_poll_execute) from [<80265f08>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3231)
 r10:82c16205 r9:82e43000 r8:01800000 r7:ddde4000 r6:82c16200 r5:8377bdec
 r4:82cb5580
[<80265d54>] (process_one_work) from [<80266aec>] (process_scheduled_works kernel/workqueue.c:3312 [inline])
[<80265d54>] (process_one_work) from [<80266aec>] (worker_thread+0x1ec/0x3b4 kernel/workqueue.c:3389)
 r10:82e43000 r9:82cb55ac r8:61c88647 r7:ddde4020 r6:82604d40 r5:ddde4000
 r4:82cb5580
[<80266900>] (worker_thread) from [<8026fb04>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df819d48 r8:82cc7800 r7:82cb5580 r6:80266900 r5:82e43000
 r4:82cc75c0
[<8026fa00>] (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 r5:8026fa00 r4:82cc75c0
Rebooting in 86400 seconds..