------------[ cut here ]------------
[  193.904137] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_vscale+0x130/0x190, CPU#0: kunit_try_catch/2943
[  193.904463] Modules linked in:
[  193.904600] CPU: 0 UID: 0 PID: 2943 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) 
[  193.904938] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  193.905394] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  193.906356] RIP: 0010:drm_rect_calc_vscale+0x130/0x190
[  193.906933] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 10 2b 23 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
[  193.908845] RSP: 0000:ffff88810aa97c78 EFLAGS: 00010286
[  193.909427] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  193.910056] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ffffffff96062bdc
[  193.910716] RBP: ffff88810aa97ca0 R08: 0000000000000000 R09: ffffed10218cf3c0
[  193.911209] R10: ffff88810c679e07 R11: 0000000000000000 R12: ffffffff96062bc8
[  193.911937] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810aa97d38
[  193.912242] FS:  0000000000000000(0000) GS:ffff8881c3013000(0000) knlGS:0000000000000000
[  193.912480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.912649] CR2: 00007ffff7ffe000 CR3: 0000000156ebc000 CR4: 00000000000006f0
[  193.912851] DR0: ffffffff980b3540 DR1: ffffffff980b3541 DR2: ffffffff980b3543
[  193.913051] DR3: ffffffff980b3545 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  193.913455] Call Trace:
[  193.913699]  <TASK>
[  193.913912]  drm_test_rect_calc_vscale+0x108/0x270
[  193.914504]  ? __pfx_drm_test_rect_calc_vscale+0x10/0x10
[  193.914741]  ? __schedule+0x10c6/0x2b60
[  193.914886]  ? __pfx_read_tsc+0x10/0x10
[  193.915019]  ? ktime_get_ts64+0x86/0x230
[  193.915169]  kunit_try_run_case+0x1a5/0x480
[  193.915574]  ? __pfx_kunit_try_run_case+0x10/0x10
[  193.915989]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  193.916519]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  193.916965]  ? __kthread_parkme+0x82/0x180
[  193.917442]  ? preempt_count_sub+0x50/0x80
[  193.918001]  ? __pfx_kunit_try_run_case+0x10/0x10
[  193.918185]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  193.918782]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  193.919435]  kthread+0x337/0x6f0
[  193.919660]  ? trace_preempt_on+0x20/0xc0
[  193.919799]  ? __pfx_kthread+0x10/0x10
[  193.919931]  ? _raw_spin_unlock_irq+0x47/0x80
[  193.920074]  ? calculate_sigpending+0x7b/0xa0
[  193.920580]  ? __pfx_kthread+0x10/0x10
[  193.920926]  ret_from_fork+0x116/0x1d0
[  193.921479]  ? __pfx_kthread+0x10/0x10
[  193.921845]  ret_from_fork_asm+0x1a/0x30
[  193.922192]  </TASK>
[  193.922486] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  193.927070] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_vscale+0x130/0x190, CPU#0: kunit_try_catch/2945
[  193.927889] Modules linked in:
[  193.928149] CPU: 0 UID: 0 PID: 2945 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) 
[  193.928925] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  193.929802] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  193.930120] RIP: 0010:drm_rect_calc_vscale+0x130/0x190
[  193.930459] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 10 2b 23 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
[  193.931031] RSP: 0000:ffff88810a847c78 EFLAGS: 00010286
[  193.931390] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  193.931637] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ffffffff96062c14
[  193.931904] RBP: ffff88810a847ca0 R08: 0000000000000000 R09: ffffed10218cf3e0
[  193.932224] R10: ffff88810c679f07 R11: 0000000000000000 R12: ffffffff96062c00
[  193.932866] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810a847d38
[  193.933625] FS:  0000000000000000(0000) GS:ffff8881c3013000(0000) knlGS:0000000000000000
[  193.934102] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.934486] CR2: 00007ffff7ffe000 CR3: 0000000156ebc000 CR4: 00000000000006f0
[  193.934802] DR0: ffffffff980b3540 DR1: ffffffff980b3541 DR2: ffffffff980b3543
[  193.935146] DR3: ffffffff980b3545 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  193.935836] Call Trace:
[  193.936067]  <TASK>
[  193.936218]  drm_test_rect_calc_vscale+0x108/0x270
[  193.936674]  ? __pfx_drm_test_rect_calc_vscale+0x10/0x10
[  193.936844]  ? __schedule+0x10c6/0x2b60
[  193.936974]  ? __pfx_read_tsc+0x10/0x10
[  193.937117]  ? ktime_get_ts64+0x86/0x230
[  193.937481]  kunit_try_run_case+0x1a5/0x480
[  193.937865]  ? __pfx_kunit_try_run_case+0x10/0x10
[  193.938472]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  193.938879]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  193.939430]  ? __kthread_parkme+0x82/0x180
[  193.939828]  ? preempt_count_sub+0x50/0x80
[  193.940197]  ? __pfx_kunit_try_run_case+0x10/0x10
[  193.940477]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  193.940938]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  193.941146]  kthread+0x337/0x6f0
[  193.941483]  ? trace_preempt_on+0x20/0xc0
[  193.941858]  ? __pfx_kthread+0x10/0x10
[  193.942207]  ? _raw_spin_unlock_irq+0x47/0x80
[  193.942659]  ? calculate_sigpending+0x7b/0xa0
[  193.942816]  ? __pfx_kthread+0x10/0x10
[  193.942946]  ret_from_fork+0x116/0x1d0
[  193.943071]  ? __pfx_kthread+0x10/0x10
[  193.943210]  ret_from_fork_asm+0x1a/0x30
[  193.943702]  </TASK>
[  193.943917] ---[ end trace 0000000000000000 ]---