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Date
July 13, 2025, 11:09 p.m.

Environment
qemu-x86_64 

------------[ cut here ]------------
[  140.775145] WARNING: CPU: 0 PID: 2754 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  140.775778] Modules linked in:
[  140.775954] CPU: 0 UID: 0 PID: 2754 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  140.776958] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.777168] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.777553] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  140.777833] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 9b d5 1e 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
[  140.778538] RSP: 0000:ffff88810b187c78 EFLAGS: 00010286
[  140.778897] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  140.779211] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffffa1233c38
[  140.779480] RBP: ffff88810b187ca0 R08: 0000000000000000 R09: ffffed102086e200
[  140.780118] R10: ffff888104371007 R11: 0000000000000000 R12: ffffffffa1233c20
[  140.780496] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810b187d38
[  140.781155] FS:  0000000000000000(0000) GS:ffff8881b7e72000(0000) knlGS:0000000000000000
[  140.781489] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.782233] CR2: 00007ffff7ffe000 CR3: 00000000100bc000 CR4: 00000000000006f0
[  140.782768] DR0: ffffffffa3252440 DR1: ffffffffa3252441 DR2: ffffffffa3252442
[  140.783227] DR3: ffffffffa3252443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.783532] Call Trace:
[  140.783824]  <TASK>
[  140.784090]  drm_test_rect_calc_hscale+0x108/0x270
[  140.784291]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  140.784678]  ? __schedule+0x10cc/0x2b60
[  140.784867]  ? __pfx_read_tsc+0x10/0x10
[  140.785369]  ? ktime_get_ts64+0x86/0x230
[  140.785937]  kunit_try_run_case+0x1a5/0x480
[  140.786286]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.786726]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.786969]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.787202]  ? __kthread_parkme+0x82/0x180
[  140.787406]  ? preempt_count_sub+0x50/0x80
[  140.787924]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.788126]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.788705]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.789148]  kthread+0x337/0x6f0
[  140.789316]  ? trace_preempt_on+0x20/0xc0
[  140.789487]  ? __pfx_kthread+0x10/0x10
[  140.790128]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.790475]  ? calculate_sigpending+0x7b/0xa0
[  140.791043]  ? __pfx_kthread+0x10/0x10
[  140.791247]  ret_from_fork+0x116/0x1d0
[  140.791387]  ? __pfx_kthread+0x10/0x10
[  140.791926]  ret_from_fork_asm+0x1a/0x30
[  140.792152]  </TASK>
[  140.792350] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  140.753255] WARNING: CPU: 0 PID: 2752 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  140.754296] Modules linked in:
[  140.754908] CPU: 0 UID: 0 PID: 2752 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  140.756097] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.756534] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.757963] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  140.758163] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 9b d5 1e 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
[  140.759019] RSP: 0000:ffff88810a72fc78 EFLAGS: 00010286
[  140.759348] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  140.759847] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffffa1233c00
[  140.760276] RBP: ffff88810a72fca0 R08: 0000000000000000 R09: ffffed102086e280
[  140.760784] R10: ffff888104371407 R11: 0000000000000000 R12: ffffffffa1233be8
[  140.761061] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810a72fd38
[  140.761344] FS:  0000000000000000(0000) GS:ffff8881b7e72000(0000) knlGS:0000000000000000
[  140.762153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.762544] CR2: 00007ffff7ffe000 CR3: 00000000100bc000 CR4: 00000000000006f0
[  140.763028] DR0: ffffffffa3252440 DR1: ffffffffa3252441 DR2: ffffffffa3252442
[  140.763473] DR3: ffffffffa3252443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.764008] Call Trace:
[  140.764261]  <TASK>
[  140.764542]  drm_test_rect_calc_hscale+0x108/0x270
[  140.765287]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  140.765718]  ? __schedule+0x10cc/0x2b60
[  140.766040]  ? __pfx_read_tsc+0x10/0x10
[  140.766243]  ? ktime_get_ts64+0x86/0x230
[  140.766439]  kunit_try_run_case+0x1a5/0x480
[  140.766899]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.767300]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.767740]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.767988]  ? __kthread_parkme+0x82/0x180
[  140.768179]  ? preempt_count_sub+0x50/0x80
[  140.768364]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.768909]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.769350]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.769968]  kthread+0x337/0x6f0
[  140.770202]  ? trace_preempt_on+0x20/0xc0
[  140.770515]  ? __pfx_kthread+0x10/0x10
[  140.770777]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.770986]  ? calculate_sigpending+0x7b/0xa0
[  140.771186]  ? __pfx_kthread+0x10/0x10
[  140.771363]  ret_from_fork+0x116/0x1d0
[  140.771537]  ? __pfx_kthread+0x10/0x10
[  140.771716]  ret_from_fork_asm+0x1a/0x30
[  140.771945]  </TASK>
[  140.772045] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  140.544548] WARNING: CPU: 1 PID: 2755 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  140.546760] Modules linked in:
[  140.547372] CPU: 1 UID: 0 PID: 2755 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  140.548758] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.549303] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.549584] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  140.549782] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 9b d5 1e 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
[  140.551409] RSP: 0000:ffff888109ddfc78 EFLAGS: 00010286
[  140.552177] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  140.552976] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffffb2433c38
[  140.553834] RBP: ffff888109ddfca0 R08: 0000000000000000 R09: ffffed1020df29c0
[  140.554777] R10: ffff888106f94e07 R11: 0000000000000000 R12: ffffffffb2433c20
[  140.555269] R13: 0000000000000000 R14: 000000007fffffff R15: ffff888109ddfd38
[  140.555520] FS:  0000000000000000(0000) GS:ffff8881a0372000(0000) knlGS:0000000000000000
[  140.555979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.556224] CR2: 00007ffff7ffe000 CR3: 0000000169cbc000 CR4: 00000000000006f0
[  140.556626] DR0: ffffffffb4452444 DR1: ffffffffb4452449 DR2: ffffffffb445244a
[  140.556995] DR3: ffffffffb445244b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.557327] Call Trace:
[  140.557474]  <TASK>
[  140.557610]  drm_test_rect_calc_hscale+0x108/0x270
[  140.557831]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  140.558387]  ? __schedule+0x10cc/0x2b60
[  140.558557]  ? __pfx_read_tsc+0x10/0x10
[  140.558765]  ? ktime_get_ts64+0x86/0x230
[  140.559057]  kunit_try_run_case+0x1a5/0x480
[  140.559250]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.559445]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.559640]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.559956]  ? __kthread_parkme+0x82/0x180
[  140.560216]  ? preempt_count_sub+0x50/0x80
[  140.560394]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.560632]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.561017]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.561311]  kthread+0x337/0x6f0
[  140.561495]  ? trace_preempt_on+0x20/0xc0
[  140.561675]  ? __pfx_kthread+0x10/0x10
[  140.562214]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.562453]  ? calculate_sigpending+0x7b/0xa0
[  140.562644]  ? __pfx_kthread+0x10/0x10
[  140.562898]  ret_from_fork+0x116/0x1d0
[  140.563101]  ? __pfx_kthread+0x10/0x10
[  140.563330]  ret_from_fork_asm+0x1a/0x30
[  140.563519]  </TASK>
[  140.563613] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  140.522411] WARNING: CPU: 1 PID: 2753 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  140.522824] Modules linked in:
[  140.523003] CPU: 1 UID: 0 PID: 2753 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  140.523437] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.523660] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.524013] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  140.524598] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 9b d5 1e 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
[  140.525528] RSP: 0000:ffff88810a1c7c78 EFLAGS: 00010286
[  140.525934] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  140.526479] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffffb2433c00
[  140.526990] RBP: ffff88810a1c7ca0 R08: 0000000000000000 R09: ffffed1020b91340
[  140.527446] R10: ffff888105c89a07 R11: 0000000000000000 R12: ffffffffb2433be8
[  140.527895] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810a1c7d38
[  140.528232] FS:  0000000000000000(0000) GS:ffff8881a0372000(0000) knlGS:0000000000000000
[  140.529097] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.529345] CR2: 00007ffff7ffe000 CR3: 0000000169cbc000 CR4: 00000000000006f0
[  140.529815] DR0: ffffffffb4452444 DR1: ffffffffb4452449 DR2: ffffffffb445244a
[  140.530292] DR3: ffffffffb445244b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.530702] Call Trace:
[  140.530821]  <TASK>
[  140.530966]  drm_test_rect_calc_hscale+0x108/0x270
[  140.531501]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  140.531729]  ? __schedule+0x10cc/0x2b60
[  140.532430]  ? __pfx_read_tsc+0x10/0x10
[  140.532629]  ? ktime_get_ts64+0x86/0x230
[  140.533113]  kunit_try_run_case+0x1a5/0x480
[  140.533319]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.533659]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.533991]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.534254]  ? __kthread_parkme+0x82/0x180
[  140.534440]  ? preempt_count_sub+0x50/0x80
[  140.534643]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.535301]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.536005]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.536425]  kthread+0x337/0x6f0
[  140.536627]  ? trace_preempt_on+0x20/0xc0
[  140.536978]  ? __pfx_kthread+0x10/0x10
[  140.537456]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.537682]  ? calculate_sigpending+0x7b/0xa0
[  140.537982]  ? __pfx_kthread+0x10/0x10
[  140.538404]  ret_from_fork+0x116/0x1d0
[  140.538869]  ? __pfx_kthread+0x10/0x10
[  140.539076]  ret_from_fork_asm+0x1a/0x30
[  140.539437]  </TASK>
[  140.539548] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details