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WARNING: CPU: 1 PID: 23338 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x150/0x154 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 23338 Comm: kworker/u4:2 Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
Backtrace: 
[<81802550>] (dump_backtrace) from [<818027c4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252)
 r7:00000080 r6:60000193 r5:00000000 r4:82b58344
[<818027ac>] (show_stack) from [<81809e98>] (__dump_stack lib/dump_stack.c:79 [inline])
[<818027ac>] (show_stack) from [<81809e98>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120)
[<81809de0>] (dump_stack) from [<81803358>] (panic+0x130/0x378 kernel/panic.c:231)
 r7:81f48198 r6:82a390a4 r5:00000000 r4:82c6b0d0
[<81803228>] (panic) from [<802446f4>] (__warn+0xb0/0x164 kernel/panic.c:605)
 r3:82a2248c r2:00000000 r1:00000000 r0:81f48198
 r7:00000015
[<80244644>] (__warn) from [<81803608>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:628)
 r7:809fa964 r6:00000015 r5:81fcbd70 r4:00000000
[<818035a4>] (warn_slowpath_fmt) from [<809fa964>] (vkms_vblank_simulate+0x150/0x154 drivers/gpu/drm/vkms/vkms_crtc.c:21)
 r8:00fe4c00 r7:83cd8720 r6:82a22498 r5:00000000 r4:83cd9390
[<809fa814>] (vkms_vblank_simulate) from [<80307ebc>] (__run_hrtimer kernel/time/hrtimer.c:1537 [inline])
[<809fa814>] (vkms_vblank_simulate) from [<80307ebc>] (__hrtimer_run_queues+0xd4/0x690 kernel/time/hrtimer.c:1601)
 r9:86f32000 r8:ddfdb3e0 r7:ddfdb380 r6:82a22498 r5:00000000 r4:83cd9390
[<80307de8>] (__hrtimer_run_queues) from [<80308da0>] (hrtimer_interrupt+0x14c/0x2e0 kernel/time/hrtimer.c:1663)
 r10:ddfdb4d8 r9:ddfdb498 r8:ddfdb458 r7:ddfdb4a0 r6:ddfdb4e0 r5:20000193
 r4:ddfdb380
[<80308c54>] (hrtimer_interrupt) from [<8114c308>] (timer_handler drivers/clocksource/arm_arch_timer.c:647 [inline])
[<80308c54>] (hrtimer_interrupt) from [<8114c308>] (arch_timer_handler_virt+0x30/0x38 drivers/clocksource/arm_arch_timer.c:658)
 r10:86f33d00 r9:86f33d68 r8:86f33cd0 r7:8348d940 r6:82a22c34 r5:0000001c
 r4:8348b000
[<8114c2d8>] (arch_timer_handler_virt) from [<802df904>] (handle_percpu_devid_irq+0xa4/0x19c kernel/irq/chip.c:930)
[<802df860>] (handle_percpu_devid_irq) from [<802d8730>] (generic_handle_irq_desc include/linux/irqdesc.h:158 [inline])
[<802df860>] (handle_percpu_devid_irq) from [<802d8730>] (generic_handle_irq kernel/irq/irqdesc.c:652 [inline])
[<802df860>] (handle_percpu_devid_irq) from [<802d8730>] (__handle_domain_irq+0xb0/0x120 kernel/irq/irqdesc.c:689)
 r10:86f33d00 r9:86f33d68 r8:00000001 r7:00000000 r6:828ad498 r5:00000000
 r4:828ad498 r3:00010001
[<802d8680>] (__handle_domain_irq) from [<8088af70>] (handle_domain_irq include/linux/irqdesc.h:176 [inline])
[<802d8680>] (__handle_domain_irq) from [<8088af70>] (gic_handle_irq+0x84/0xac drivers/irqchip/irq-gic.c:370)
 r10:00000000 r9:86f32000 r8:e000200c r7:828ad4bc r6:e0002000 r5:86f33d68
 r4:82a22c34
[<8088aeec>] (gic_handle_irq) from [<80200abc>] (__irq_svc+0x5c/0x94 arch/arm/kernel/entry-armv.S:205)
Exception stack(0x86f33d68 to 0x86f33db0)
3d60:                   00000001 81f42cdc 5b734000 60000093 86f33db8 828a2680
3d80: 828a2680 00000000 00000000 60000013 00000000 86f33e2c 86f33da8 86f33db8
3da0: 8181dacc 802bfbc4 20000013 ffffffff
 r9:86f32000 r8:00000000 r7:86f33d9c r6:ffffffff r5:20000013 r4:802bfbc4
[<802bfaa0>] (lock_acquire.part.0) from [<802bff28>] (lock_acquire+0x6c/0x74 kernel/locking/lockdep.c:5483)
 r10:80bd0130 r9:00000000 r8:00000001 r7:00000000 r6:00000000 r5:00000000
 r4:82b853b4
[<802bfebc>] (lock_acquire) from [<818266ac>] (__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline])
[<802bfebc>] (lock_acquire) from [<818266ac>] (_raw_spin_lock+0x44/0x54 kernel/locking/spinlock.c:151)
 r10:00001a5f r9:833beef8 r8:80bd0070 r7:00000000 r6:3b9aca00 r5:80bd0130
 r4:82b853a4
[<81826668>] (_raw_spin_lock) from [<80bd0130>] (spin_lock include/linux/spinlock.h:354 [inline])
[<81826668>] (_raw_spin_lock) from [<80bd0130>] (wg_ratelimiter_gc_entries+0x80/0x2ec drivers/net/wireguard/ratelimiter.c:63)
 r5:000007d8 r4:eb2e2400
[<80bd00b0>] (wg_ratelimiter_gc_entries) from [<80269484>] (process_one_work+0x2d4/0x998 kernel/workqueue.c:2275)
 r10:00000088 r9:82a22498 r8:82bfd34e r7:83416200 r6:83420000 r5:86c97b00
 r4:82b853c8
[<802691b0>] (process_one_work) from [<80269bac>] (worker_thread+0x64/0x54c kernel/workqueue.c:2421)
 r10:00000088 r9:86f32000 r8:82a06d00 r7:83420038 r6:86c97b14 r5:83420000
 r4:86c97b00
[<80269b48>] (worker_thread) from [<80271d20>] (kthread+0x184/0x1a4 kernel/kthread.c:292)
 r10:835d3e64 r9:86c97b00 r8:80269b48 r7:00000000 r6:86f32000 r5:86f63e80
 r4:86126680
[<80271b9c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:158)
Exception stack(0x86f33fb0 to 0x86f33ff8)
3fa0:                                     00000000 00000000 00000000 00000000
3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271b9c
 r4:86f63e80
Rebooting in 86400 seconds..