------------[ cut here ]------------
[  194.756496] WARNING: CPU: 0 PID: 2728 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  194.757621] Modules linked in:
[  194.758514] CPU: 0 UID: 0 PID: 2728 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[  194.759588] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  194.760429] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  194.761443] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  194.762278] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d c3 cc cc cc cc 8d 44 08 ff 99 f7 f9 89 c1 85 c0 79 d6 eb de 90 <0f> 0b 90 b9 ea ff ff ff 48 83 c4 08 5b 89 c8 41 5c 41 5d 41 5e 5d
[  194.764129] RSP: 0000:ffff8881089ffc78 EFLAGS: 00010286
[  194.764742] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  194.765513] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff9ac23280
[  194.766738] RBP: ffff8881089ffca0 R08: 0000000000000000 R09: ffffed1020bc78c0
[  194.767303] R10: ffff888105e3c607 R11: 0000000000000000 R12: ffffffff9ac23268
[  194.767899] R13: 0000000000000000 R14: 000000007fffffff R15: ffff8881089ffd38
[  194.768781] FS:  0000000000000000(0000) GS:ffff8881be43b000(0000) knlGS:0000000000000000
[  194.769769] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  194.770256] CR2: ffffffffffffffff CR3: 000000005a0ba000 CR4: 00000000000006f0
[  194.771256] DR0: ffffffff9cc88880 DR1: ffffffff9cc88881 DR2: ffffffff9cc88882
[  194.772130] DR3: ffffffff9cc88883 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  194.773001] Call Trace:
[  194.773448]  <TASK>
[  194.773986]  drm_test_rect_calc_hscale+0x108/0x270
[  194.775208]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  194.775818]  ? __schedule+0x10cc/0x2b30
[  194.776155]  ? __pfx_read_tsc+0x10/0x10
[  194.776482]  ? ktime_get_ts64+0x86/0x230
[  194.776780]  kunit_try_run_case+0x1a5/0x480
[  194.777069]  ? __pfx_kunit_try_run_case+0x10/0x10
[  194.782456]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  194.783807]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  194.785651]  ? __kthread_parkme+0x82/0x180
[  194.787765]  ? preempt_count_sub+0x50/0x80
[  194.789096]  ? __pfx_kunit_try_run_case+0x10/0x10
[  194.789527]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  194.790122]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  194.791132]  kthread+0x337/0x6f0
[  194.791529]  ? trace_preempt_on+0x20/0xc0
[  194.792551]  ? __pfx_kthread+0x10/0x10
[  194.793173]  ? _raw_spin_unlock_irq+0x47/0x80
[  194.793963]  ? calculate_sigpending+0x7b/0xa0
[  194.794990]  ? __pfx_kthread+0x10/0x10
[  194.795387]  ret_from_fork+0x41/0x80
[  194.795983]  ? __pfx_kthread+0x10/0x10
[  194.796453]  ret_from_fork_asm+0x1a/0x30
[  194.796896]  </TASK>
[  194.797680] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  194.804959] WARNING: CPU: 1 PID: 2730 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  194.806034] Modules linked in:
[  194.806882] CPU: 1 UID: 0 PID: 2730 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[  194.807734] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  194.807936] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  194.809346] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  194.809918] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d c3 cc cc cc cc 8d 44 08 ff 99 f7 f9 89 c1 85 c0 79 d6 eb de 90 <0f> 0b 90 b9 ea ff ff ff 48 83 c4 08 5b 89 c8 41 5c 41 5d 41 5e 5d
[  194.811856] RSP: 0000:ffff8881089ffc78 EFLAGS: 00010286
[  194.812379] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  194.813292] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff9ac232b8
[  194.814132] RBP: ffff8881089ffca0 R08: 0000000000000000 R09: ffffed1020c3cc20
[  194.814689] R10: ffff8881061e6107 R11: 0000000000000000 R12: ffffffff9ac232a0
[  194.815563] R13: 0000000000000000 R14: 000000007fffffff R15: ffff8881089ffd38
[  194.816230] FS:  0000000000000000(0000) GS:ffff8881be53b000(0000) knlGS:0000000000000000
[  194.817197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  194.817927] CR2: 00007ffff7ffe000 CR3: 000000005a0ba000 CR4: 00000000000006f0
[  194.818548] DR0: ffffffff9cc88880 DR1: ffffffff9cc88881 DR2: ffffffff9cc88883
[  194.819095] DR3: ffffffff9cc88885 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  194.819656] Call Trace:
[  194.819939]  <TASK>
[  194.821259]  drm_test_rect_calc_hscale+0x108/0x270
[  194.822029]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  194.822747]  ? __schedule+0x10cc/0x2b30
[  194.823291]  ? __pfx_read_tsc+0x10/0x10
[  194.823888]  ? ktime_get_ts64+0x86/0x230
[  194.824465]  kunit_try_run_case+0x1a5/0x480
[  194.825238]  ? __pfx_kunit_try_run_case+0x10/0x10
[  194.825760]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  194.826295]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  194.827094]  ? __kthread_parkme+0x82/0x180
[  194.827814]  ? preempt_count_sub+0x50/0x80
[  194.828272]  ? __pfx_kunit_try_run_case+0x10/0x10
[  194.828965]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  194.829799]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  194.830346]  kthread+0x337/0x6f0
[  194.831103]  ? trace_preempt_on+0x20/0xc0
[  194.831522]  ? __pfx_kthread+0x10/0x10
[  194.831913]  ? _raw_spin_unlock_irq+0x47/0x80
[  194.832397]  ? calculate_sigpending+0x7b/0xa0
[  194.832813]  ? __pfx_kthread+0x10/0x10
[  194.833623]  ret_from_fork+0x41/0x80
[  194.834102]  ? __pfx_kthread+0x10/0x10
[  194.834955]  ret_from_fork_asm+0x1a/0x30
[  194.835684]  </TASK>
[  194.836009] ---[ end trace 0000000000000000 ]---