syzbot

input: AT Raw Set 2 keyboard as /devices/platform/bus@8000000/bus@8000000:motherboard-bus/bus@8000000:motherboard-bus:iofpga-bus@300000000/1c060000.kmi/serio0/input/input0
input: ImExPS/2 Generic Explorer Mouse as /devices/platform/bus@8000000/bus@8000000:motherboard-bus/bus@8000000:motherboard-bus:iofpga-bus@300000000/1c070000.kmi/serio1/input/input2
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WARNING: CPU: 1 PID: 86 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: 86 Comm: kworker/1:1 Not tainted 6.10.0-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events output_poll_execute
Call trace: 
[<818e7540>] (dump_backtrace) from [<818e763c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622804 r5:00000000 r4:81fe69a4
[<818e7624>] (show_stack) from [<81904e44>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818e7624>] (show_stack) from [<81904e44>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<81904df0>] (dump_stack_lvl) from [<81904e84>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:82861d0c
[<81904e6c>] (dump_stack) from [<818e80e4>] (panic+0x120/0x358 kernel/panic.c:347)
[<818e7fc4>] (panic) from [<80241f54>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818e7fc4>] (panic) from [<80241f54>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fcfacc r0:81fd7154
 r7:80a228f0
[<80241ee0>] (check_panic_on_warn) from [<80242148>] (__warn+0x7c/0x180 kernel/panic.c:693)
[<802420cc>] (__warn) from [<80242434>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:726)
 r8:00000009 r7:820591c8 r6:df999bdc r5:8357c800 r4:00000000
[<80242250>] (warn_slowpath_fmt) from [<80a228f0>] (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 r6:84100e40 r5:840e5050
 r4:00000000
[<80a2268c>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a23d3c>] (drm_atomic_helper_wait_for_vblanks drivers/gpu/drm/drm_atomic_helper.c:1658 [inline])
[<80a2268c>] (drm_atomic_helper_wait_for_vblanks.part.0) from [<80a23d3c>] (drm_atomic_helper_commit_tail+0x84/0x94 drivers/gpu/drm/drm_atomic_helper.c:1758)
 r10:841b9a9c r9:00000000 r8:00000000 r7:00000001 r6:95021f40 r5:83ff9800
 r4:84100e40
[<80a23cb8>] (drm_atomic_helper_commit_tail) from [<80a25340>] (commit_tail+0x178/0x1a0 drivers/gpu/drm/drm_atomic_helper.c:1835)
 r5:00000000 r4:84100e40
[<80a251c8>] (commit_tail) from [<80a254d0>] (drm_atomic_helper_commit+0x150/0x174 drivers/gpu/drm/drm_atomic_helper.c:2073)
 r9:00000000 r8:84100e6c r7:00000000 r6:83ff9800 r5:00000000 r4:84100e40
[<80a25380>] (drm_atomic_helper_commit) from [<809df894>] (drm_atomic_commit+0xc4/0xf8 drivers/gpu/drm/drm_atomic.c:1522)
 r9:00000000 r8:840e5520 r7:00000001 r6:00000001 r5:83ff9800 r4:84100e40
[<809df7d0>] (drm_atomic_commit) from [<809e60c0>] (drm_client_modeset_commit_atomic+0x21c/0x25c drivers/gpu/drm/drm_client_modeset.c:1063)
 r5:83ff99ac r4:84100e40
[<809e5ea4>] (drm_client_modeset_commit_atomic) from [<809e61d8>] (drm_client_modeset_commit_locked+0x64/0x18c drivers/gpu/drm/drm_client_modeset.c:1166)
 r10:83ff99ec r9:00000001 r8:83ff9898 r7:83a9c818 r6:83a9c800 r5:83ff9800
 r4:83ff9800
[<809e6174>] (drm_client_modeset_commit_locked) from [<809e632c>] (drm_client_modeset_commit+0x2c/0x48 drivers/gpu/drm/drm_client_modeset.c:1192)
 r9:00000001 r8:83ff9898 r7:8205277c r6:83a9c8b8 r5:83ff9800 r4:83a9c800
[<809e6300>] (drm_client_modeset_commit) from [<80a31f74>] (__drm_fb_helper_restore_fbdev_mode_unlocked drivers/gpu/drm/drm_fb_helper.c:244 [inline])
[<809e6300>] (drm_client_modeset_commit) from [<80a31f74>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x8c/0xc4 drivers/gpu/drm/drm_fb_helper.c:223)
 r5:83a9c800 r4:00000000
[<80a31ee8>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a31ed8>] (drm_fb_helper_set_par drivers/gpu/drm/drm_fb_helper.c:1340 [inline])
[<80a31ee8>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<80a31ed8>] (drm_fb_helper_hotplug_event+0xf8/0x108 drivers/gpu/drm/drm_fb_helper.c:1983)
 r7:8205277c r6:83ff98ac r5:83a9c8b8 r4:83a9c800
[<80a31de0>] (drm_fb_helper_hotplug_event) from [<80a1b5cc>] (drm_fbdev_dma_client_hotplug+0x24/0xc8 drivers/gpu/drm/drm_fbdev_dma.c:224)
 r5:83ff9800 r4:83a9c800
[<80a1b5a8>] (drm_fbdev_dma_client_hotplug) from [<809e5650>] (drm_client_dev_hotplug drivers/gpu/drm/drm_client.c:238 [inline])
[<80a1b5a8>] (drm_fbdev_dma_client_hotplug) from [<809e5650>] (drm_client_dev_hotplug+0xbc/0x114 drivers/gpu/drm/drm_client.c:217)
 r7:8205277c r6:83ff98ac r5:83ff9800 r4:83a9c800
[<809e5594>] (drm_client_dev_hotplug) from [<80a2d4a0>] (drm_kms_helper_hotplug_event drivers/gpu/drm/drm_probe_helper.c:738 [inline])
[<809e5594>] (drm_client_dev_hotplug) from [<80a2d4a0>] (output_poll_execute+0x270/0x2c4 drivers/gpu/drm/drm_probe_helper.c:854)
 r9:00000001 r8:83ff98d8 r7:00000001 r6:83ff9800 r5:00000001 r4:82e9ca80
[<80a2d230>] (output_poll_execute) from [<802658ac>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3231)
 r10:82c16205 r9:8357c800 r8:01800000 r7:ddde4000 r6:82c16200 r5:83ff99ec
 r4:82e9ca80
[<802656f8>] (process_one_work) from [<80266490>] (process_scheduled_works kernel/workqueue.c:3312 [inline])
[<802656f8>] (process_one_work) from [<80266490>] (worker_thread+0x1ec/0x3f4 kernel/workqueue.c:3390)
 r10:8357c800 r9:82e9caac r8:61c88647 r7:ddde4020 r6:82604d40 r5:ddde4000
 r4:82e9ca80
[<802662a4>] (worker_thread) from [<8026f4e8>] (kthread+0x104/0x134 kernel/kthread.c:389)
 r10:00000000 r9:df87de78 r8:83456840 r7:82e9ca80 r6:802662a4 r5:8357c800
 r4:82ec1b40
[<8026f3e4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdf999fb0 to 0xdf999ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026f3e4 r4:82ec1b40
Rebooting in 86400 seconds..