------------[ cut here ]------------
[  177.427242] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_vscale+0x130/0x190, CPU#1: kunit_try_catch/2814
[  177.427680] Modules linked in:
[  177.427940] CPU: 1 UID: 0 PID: 2814 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) 
[  177.428980] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  177.429255] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  177.429627] RIP: 0010:drm_rect_calc_vscale+0x130/0x190
[  177.429816] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 c0 e6 22 02 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
[  177.430706] RSP: 0000:ffff88810e0d7c78 EFLAGS: 00010286
[  177.431068] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  177.431341] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ffffffff91e55dbc
[  177.431617] RBP: ffff88810e0d7ca0 R08: 0000000000000000 R09: ffffed1020bc19a0
[  177.431915] R10: ffff888105e0cd07 R11: 0000000000000000 R12: ffffffff91e55da8
[  177.432337] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810e0d7d38
[  177.432663] FS:  0000000000000000(0000) GS:ffff8881c732b000(0000) knlGS:0000000000000000
[  177.433158] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  177.433378] CR2: 00007ffff7ffe000 CR3: 000000012a2bc000 CR4: 00000000000006f0
[  177.433641] DR0: ffffffff93e9b504 DR1: ffffffff93e9b509 DR2: ffffffff93e9b50a
[  177.434002] DR3: ffffffff93e9b50b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  177.434247] Call Trace:
[  177.434375]  <TASK>
[  177.434508]  drm_test_rect_calc_vscale+0x108/0x270
[  177.434801]  ? __kasan_check_write+0x18/0x20
[  177.435085]  ? __pfx_drm_test_rect_calc_vscale+0x10/0x10
[  177.435342]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[  177.435531]  ? __pfx_read_tsc+0x10/0x10
[  177.435780]  ? ktime_get_ts64+0x86/0x230
[  177.436139]  kunit_try_run_case+0x1a5/0x480
[  177.436364]  ? __pfx_kunit_try_run_case+0x10/0x10
[  177.436530]  ? _raw_spin_lock_irqsave+0xf9/0x100
[  177.436774]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  177.437108]  ? __kthread_parkme+0x82/0x180
[  177.437317]  ? preempt_count_sub+0x50/0x80
[  177.437518]  ? __pfx_kunit_try_run_case+0x10/0x10
[  177.437732]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  177.437958]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  177.438263]  kthread+0x337/0x6f0
[  177.438501]  ? trace_preempt_on+0x20/0xc0
[  177.438670]  ? __pfx_kthread+0x10/0x10
[  177.438894]  ? _raw_spin_unlock_irq+0x47/0x80
[  177.439057]  ? calculate_sigpending+0x7b/0xa0
[  177.439206]  ? __pfx_kthread+0x10/0x10
[  177.439352]  ret_from_fork+0x116/0x1d0
[  177.439564]  ? __pfx_kthread+0x10/0x10
[  177.440071]  ret_from_fork_asm+0x1a/0x30
[  177.440366]  </TASK>
[  177.440509] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  177.442996] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_vscale+0x130/0x190, CPU#0: kunit_try_catch/2816
[  177.443695] Modules linked in:
[  177.443848] CPU: 0 UID: 0 PID: 2816 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) 
[  177.444375] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  177.444742] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  177.445069] RIP: 0010:drm_rect_calc_vscale+0x130/0x190
[  177.445364] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 c0 e6 22 02 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
[  177.446113] RSP: 0000:ffff88810dcbfc78 EFLAGS: 00010286
[  177.446418] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  177.446730] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ffffffff91e55df4
[  177.447081] RBP: ffff88810dcbfca0 R08: 0000000000000000 R09: ffffed1020bc19e0
[  177.447348] R10: ffff888105e0cf07 R11: 0000000000000000 R12: ffffffff91e55de0
[  177.447661] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810dcbfd38
[  177.447881] FS:  0000000000000000(0000) GS:ffff8881c722b000(0000) knlGS:0000000000000000
[  177.448437] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  177.448665] CR2: ffff88815a94a000 CR3: 000000012a2bc000 CR4: 00000000000006f0
[  177.449005] DR0: ffffffff93e9b500 DR1: ffffffff93e9b501 DR2: ffffffff93e9b503
[  177.449382] DR3: ffffffff93e9b505 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  177.449802] Call Trace:
[  177.449992]  <TASK>
[  177.450129]  drm_test_rect_calc_vscale+0x108/0x270
[  177.450358]  ? __pfx_drm_test_rect_calc_vscale+0x10/0x10
[  177.450622]  ? __schedule+0x10cc/0x2b60
[  177.450788]  ? __pfx_read_tsc+0x10/0x10
[  177.450967]  ? ktime_get_ts64+0x86/0x230
[  177.451158]  kunit_try_run_case+0x1a5/0x480
[  177.451407]  ? __pfx_kunit_try_run_case+0x10/0x10
[  177.451607]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  177.451879]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  177.452166]  ? __kthread_parkme+0x82/0x180
[  177.452334]  ? preempt_count_sub+0x50/0x80
[  177.452474]  ? __pfx_kunit_try_run_case+0x10/0x10
[  177.452702]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  177.453029]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  177.453278]  kthread+0x337/0x6f0
[  177.453405]  ? trace_preempt_on+0x20/0xc0
[  177.453615]  ? __pfx_kthread+0x10/0x10
[  177.453822]  ? _raw_spin_unlock_irq+0x47/0x80
[  177.454232]  ? calculate_sigpending+0x7b/0xa0
[  177.454463]  ? __pfx_kthread+0x10/0x10
[  177.454634]  ret_from_fork+0x116/0x1d0
[  177.454825]  ? __pfx_kthread+0x10/0x10
[  177.455059]  ret_from_fork_asm+0x1a/0x30
[  177.455279]  </TASK>
[  177.455372] ---[ end trace 0000000000000000 ]---