------------[ cut here ]------------
[  202.336004] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_hscale+0x125/0x190, CPU#0: kunit_try_catch/2848
[  202.336804] Modules linked in:
[  202.337222] CPU: 0 UID: 0 PID: 2848 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[  202.339670] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  202.340065] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  202.341215] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  202.341852] 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
[  202.343443] RSP: 0000:ffff88810982fc78 EFLAGS: 00010286
[  202.344393] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  202.345079] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff9fa5cfb8
[  202.346174] RBP: ffff88810982fca0 R08: 0000000000000000 R09: ffffed1020a58f80
[  202.346818] R10: ffff8881052c7c07 R11: 0000000000000000 R12: ffffffff9fa5cfa0
[  202.347685] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810982fd38
[  202.348463] FS:  0000000000000000(0000) GS:ffff8881b962f000(0000) knlGS:0000000000000000
[  202.349481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  202.349945] CR2: dffffc00000000c5 CR3: 000000002c6bc000 CR4: 00000000000006f0
[  202.350535] DR0: ffffffffa1a97480 DR1: ffffffffa1a97481 DR2: ffffffffa1a97482
[  202.351038] DR3: ffffffffa1a97483 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  202.352045] Call Trace:
[  202.352472]  <TASK>
[  202.352694]  drm_test_rect_calc_hscale+0x108/0x270
[  202.353959]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  202.355130]  ? __schedule+0x10cc/0x2b60
[  202.355499]  ? __pfx_read_tsc+0x10/0x10
[  202.356215]  ? ktime_get_ts64+0x86/0x230
[  202.356509]  kunit_try_run_case+0x1a5/0x480
[  202.356867]  ? __pfx_kunit_try_run_case+0x10/0x10
[  202.357640]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  202.358157]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  202.358970]  ? __kthread_parkme+0x82/0x180
[  202.359729]  ? preempt_count_sub+0x50/0x80
[  202.359993]  ? __pfx_kunit_try_run_case+0x10/0x10
[  202.360817]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  202.361491]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  202.362298]  kthread+0x337/0x6f0
[  202.362549]  ? trace_preempt_on+0x20/0xc0
[  202.362949]  ? __pfx_kthread+0x10/0x10
[  202.363920]  ? _raw_spin_unlock_irq+0x47/0x80
[  202.364519]  ? calculate_sigpending+0x7b/0xa0
[  202.364927]  ? __pfx_kthread+0x10/0x10
[  202.365504]  ret_from_fork+0x116/0x1d0
[  202.366255]  ? __pfx_kthread+0x10/0x10
[  202.366836]  ret_from_fork_asm+0x1a/0x30
[  202.367710]  </TASK>
[  202.367945] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  202.300986] WARNING: drivers/gpu/drm/drm_rect.c:137 at drm_rect_calc_hscale+0x125/0x190, CPU#1: kunit_try_catch/2846
[  202.302012] Modules linked in:
[  202.303466] CPU: 1 UID: 0 PID: 2846 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[  202.304544] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  202.304872] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  202.305790] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  202.306467] 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
[  202.307880] RSP: 0000:ffff888109107c78 EFLAGS: 00010286
[  202.308724] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  202.309503] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff9fa5cf80
[  202.309975] RBP: ffff888109107ca0 R08: 0000000000000000 R09: ffffed1020c8e400
[  202.310928] R10: ffff888106472007 R11: 0000000000000000 R12: ffffffff9fa5cf68
[  202.311881] R13: 0000000000000000 R14: 000000007fffffff R15: ffff888109107d38
[  202.312571] FS:  0000000000000000(0000) GS:ffff8881b972f000(0000) knlGS:0000000000000000
[  202.313694] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  202.314102] CR2: dffffc00000000c5 CR3: 000000002c6bc000 CR4: 00000000000006f0
[  202.315045] DR0: ffffffffa1a97480 DR1: ffffffffa1a97481 DR2: ffffffffa1a97483
[  202.315652] DR3: ffffffffa1a97485 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  202.315861] Call Trace:
[  202.315960]  <TASK>
[  202.316065]  drm_test_rect_calc_hscale+0x108/0x270
[  202.317354]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  202.317936]  ? __schedule+0x10cc/0x2b60
[  202.318581]  ? __pfx_read_tsc+0x10/0x10
[  202.318877]  ? ktime_get_ts64+0x86/0x230
[  202.319572]  kunit_try_run_case+0x1a5/0x480
[  202.319992]  ? __pfx_kunit_try_run_case+0x10/0x10
[  202.320490]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  202.321038]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  202.321501]  ? __kthread_parkme+0x82/0x180
[  202.321952]  ? preempt_count_sub+0x50/0x80
[  202.322453]  ? __pfx_kunit_try_run_case+0x10/0x10
[  202.322918]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  202.323654]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  202.324124]  kthread+0x337/0x6f0
[  202.324715]  ? trace_preempt_on+0x20/0xc0
[  202.325171]  ? __pfx_kthread+0x10/0x10
[  202.325714]  ? _raw_spin_unlock_irq+0x47/0x80
[  202.326331]  ? calculate_sigpending+0x7b/0xa0
[  202.326735]  ? __pfx_kthread+0x10/0x10
[  202.326944]  ret_from_fork+0x116/0x1d0
[  202.327223]  ? __pfx_kthread+0x10/0x10
[  202.328674]  ret_from_fork_asm+0x1a/0x30
[  202.328925]  </TASK>
[  202.329555] ---[ end trace 0000000000000000 ]---