------------[ cut here ]------------
[  149.825556] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_hscale+0x125/0x190, CPU#1: kunit_try_catch/2784
[  149.826711] Modules linked in:
[  149.826879] CPU: 1 UID: 0 PID: 2784 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) 
[  149.827418] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  149.827970] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  149.828344] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  149.828605] 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
[  149.829395] RSP: 0000:ffff8881031e7c78 EFLAGS: 00010286
[  149.829598] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  149.829932] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff86437398
[  149.830250] RBP: ffff8881031e7ca0 R08: 0000000000000000 R09: ffffed102055d740
[  149.830777] R10: ffff888102aeba07 R11: 0000000000000000 R12: ffffffff86437380
[  149.831024] R13: 0000000000000000 R14: 000000007fffffff R15: ffff8881031e7d38
[  149.831408] FS:  0000000000000000(0000) GS:ffff8881cc367000(0000) knlGS:0000000000000000
[  149.831753] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.831982] CR2: dffffc00000000c5 CR3: 00000001660bc000 CR4: 00000000000006f0
[  149.832248] DR0: ffffffff8845d440 DR1: ffffffff8845d441 DR2: ffffffff8845d443
[  149.832583] DR3: ffffffff8845d445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  149.832948] Call Trace:
[  149.833082]  <TASK>
[  149.833229]  drm_test_rect_calc_hscale+0x108/0x270
[  149.833409]  ? __kasan_check_write+0x18/0x20
[  149.833730]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  149.833974]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[  149.834367]  ? __pfx_read_tsc+0x10/0x10
[  149.834778]  ? ktime_get_ts64+0x86/0x230
[  149.834984]  kunit_try_run_case+0x1a5/0x480
[  149.835171]  ? __pfx_kunit_try_run_case+0x10/0x10
[  149.835397]  ? _raw_spin_lock_irqsave+0xf9/0x100
[  149.835752]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  149.835967]  ? __kthread_parkme+0x82/0x180
[  149.836541]  ? preempt_count_sub+0x50/0x80
[  149.836740]  ? __pfx_kunit_try_run_case+0x10/0x10
[  149.836951]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  149.837386]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  149.837921]  kthread+0x337/0x6f0
[  149.838296]  ? trace_preempt_on+0x20/0xc0
[  149.838817]  ? __pfx_kthread+0x10/0x10
[  149.839002]  ? _raw_spin_unlock_irq+0x47/0x80
[  149.839391]  ? calculate_sigpending+0x7b/0xa0
[  149.839891]  ? __pfx_kthread+0x10/0x10
[  149.840270]  ret_from_fork+0x116/0x1d0
[  149.840632]  ? __pfx_kthread+0x10/0x10
[  149.840827]  ret_from_fork_asm+0x1a/0x30
[  149.840999]  </TASK>
[  149.841105] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  149.797578] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_hscale+0x125/0x190, CPU#0: kunit_try_catch/2782
[  149.798531] Modules linked in:
[  149.799003] CPU: 0 UID: 0 PID: 2782 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) 
[  149.800252] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  149.800763] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  149.801045] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  149.801229] 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
[  149.801705] RSP: 0000:ffff888103027c78 EFLAGS: 00010286
[  149.801874] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  149.803733] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff86437360
[  149.804646] RBP: ffff888103027ca0 R08: 0000000000000000 R09: ffffed10206f20a0
[  149.805251] R10: ffff888103790507 R11: 0000000000000000 R12: ffffffff86437348
[  149.806437] R13: 0000000000000000 R14: 000000007fffffff R15: ffff888103027d38
[  149.807117] FS:  0000000000000000(0000) GS:ffff8881cc267000(0000) knlGS:0000000000000000
[  149.808935] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.809520] CR2: dffffc00000000c5 CR3: 00000001660bc000 CR4: 00000000000006f0
[  149.809813] DR0: ffffffff8845d440 DR1: ffffffff8845d441 DR2: ffffffff8845d442
[  149.810076] DR3: ffffffff8845d443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  149.810838] Call Trace:
[  149.811262]  <TASK>
[  149.811404]  drm_test_rect_calc_hscale+0x108/0x270
[  149.811977]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  149.812409]  ? __schedule+0x10cc/0x2b60
[  149.812886]  ? __pfx_read_tsc+0x10/0x10
[  149.813265]  ? ktime_get_ts64+0x86/0x230
[  149.813772]  kunit_try_run_case+0x1a5/0x480
[  149.813994]  ? __pfx_kunit_try_run_case+0x10/0x10
[  149.814366]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  149.815037]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  149.815830]  ? __kthread_parkme+0x82/0x180
[  149.816110]  ? preempt_count_sub+0x50/0x80
[  149.816573]  ? __pfx_kunit_try_run_case+0x10/0x10
[  149.816799]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  149.817019]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  149.817295]  kthread+0x337/0x6f0
[  149.819053]  ? trace_preempt_on+0x20/0xc0
[  149.819286]  ? __pfx_kthread+0x10/0x10
[  149.819507]  ? _raw_spin_unlock_irq+0x47/0x80
[  149.819985]  ? calculate_sigpending+0x7b/0xa0
[  149.820506]  ? __pfx_kthread+0x10/0x10
[  149.820932]  ret_from_fork+0x116/0x1d0
[  149.821289]  ? __pfx_kthread+0x10/0x10
[  149.821514]  ret_from_fork_asm+0x1a/0x30
[  149.821662]  </TASK>
[  149.821748] ---[ end trace 0000000000000000 ]---