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Date
June 2, 2025, 2:11 p.m.

Environment
qemu-x86_64 

------------[ cut here ]------------
[  174.711580] WARNING: CPU: 0 PID: 2731 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  174.711957] Modules linked in:
[  174.712374] CPU: 0 UID: 0 PID: 2731 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.1-rc1 #1 PREEMPT(voluntary) 
[  174.713395] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  174.713910] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  174.714890] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  174.715545] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 9b 90 1a 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
[  174.716437] RSP: 0000:ffff888107cb7c78 EFLAGS: 00010286
[  174.716991] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  174.717787] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff926239b8
[  174.718573] RBP: ffff888107cb7ca0 R08: 0000000000000000 R09: ffffed1020f59920
[  174.719372] R10: ffff888107acc907 R11: 0000000000000000 R12: ffffffff926239a0
[  174.719851] R13: 0000000000000000 R14: 000000007fffffff R15: ffff888107cb7d38
[  174.721337] FS:  0000000000000000(0000) GS:ffff8881c6a93000(0000) knlGS:0000000000000000
[  174.721782] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.722593] CR2: ffffffffffffffff CR3: 00000000498ba000 CR4: 00000000000006f0
[  174.723734] DR0: ffffffff94630880 DR1: ffffffff94630881 DR2: ffffffff94630883
[  174.724341] DR3: ffffffff94630885 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  174.724580] Call Trace:
[  174.724737]  <TASK>
[  174.724950]  drm_test_rect_calc_hscale+0x108/0x270
[  174.726518]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  174.726961]  ? __schedule+0x10cc/0x2b30
[  174.727677]  ? __pfx_read_tsc+0x10/0x10
[  174.728723]  ? ktime_get_ts64+0x86/0x230
[  174.729159]  kunit_try_run_case+0x1a5/0x480
[  174.729743]  ? __pfx_kunit_try_run_case+0x10/0x10
[  174.730019]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  174.730381]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  174.730987]  ? __kthread_parkme+0x82/0x180
[  174.731642]  ? preempt_count_sub+0x50/0x80
[  174.732093]  ? __pfx_kunit_try_run_case+0x10/0x10
[  174.733099]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  174.733609]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  174.733886]  kthread+0x337/0x6f0
[  174.734182]  ? trace_preempt_on+0x20/0xc0
[  174.735409]  ? __pfx_kthread+0x10/0x10
[  174.735638]  ? _raw_spin_unlock_irq+0x47/0x80
[  174.735868]  ? calculate_sigpending+0x7b/0xa0
[  174.736420]  ? __pfx_kthread+0x10/0x10
[  174.736813]  ret_from_fork+0x41/0x80
[  174.738096]  ? __pfx_kthread+0x10/0x10
[  174.738694]  ret_from_fork_asm+0x1a/0x30
[  174.739394]  </TASK>
[  174.739651] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  174.673306] WARNING: CPU: 0 PID: 2729 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_hscale+0x125/0x190
[  174.674075] Modules linked in:
[  174.674526] CPU: 0 UID: 0 PID: 2729 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.1-rc1 #1 PREEMPT(voluntary) 
[  174.676084] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  174.676549] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  174.677916] RIP: 0010:drm_rect_calc_hscale+0x125/0x190
[  174.678368] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 9b 90 1a 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
[  174.679645] RSP: 0000:ffff888107ba7c78 EFLAGS: 00010286
[  174.680629] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  174.681840] RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffffffff92623980
[  174.682375] RBP: ffff888107ba7ca0 R08: 0000000000000000 R09: ffffed1020f598e0
[  174.682758] R10: ffff888107acc707 R11: 0000000000000000 R12: ffffffff92623968
[  174.683314] R13: 0000000000000000 R14: 000000007fffffff R15: ffff888107ba7d38
[  174.684345] FS:  0000000000000000(0000) GS:ffff8881c6a93000(0000) knlGS:0000000000000000
[  174.684850] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.686125] CR2: ffffffffffffffff CR3: 00000000498ba000 CR4: 00000000000006f0
[  174.686596] DR0: ffffffff94630880 DR1: ffffffff94630881 DR2: ffffffff94630883
[  174.687059] DR3: ffffffff94630885 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  174.688606] Call Trace:
[  174.688812]  <TASK>
[  174.689093]  drm_test_rect_calc_hscale+0x108/0x270
[  174.690147]  ? __pfx_drm_test_rect_calc_hscale+0x10/0x10
[  174.690910]  ? __schedule+0x10cc/0x2b30
[  174.691899]  ? __pfx_read_tsc+0x10/0x10
[  174.692208]  ? ktime_get_ts64+0x86/0x230
[  174.693104]  kunit_try_run_case+0x1a5/0x480
[  174.694105]  ? __pfx_kunit_try_run_case+0x10/0x10
[  174.694748]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  174.695077]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  174.695837]  ? __kthread_parkme+0x82/0x180
[  174.696656]  ? preempt_count_sub+0x50/0x80
[  174.696975]  ? __pfx_kunit_try_run_case+0x10/0x10
[  174.697360]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  174.698785]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  174.699185]  kthread+0x337/0x6f0
[  174.699436]  ? trace_preempt_on+0x20/0xc0
[  174.699851]  ? __pfx_kthread+0x10/0x10
[  174.700115]  ? _raw_spin_unlock_irq+0x47/0x80
[  174.700512]  ? calculate_sigpending+0x7b/0xa0
[  174.701299]  ? __pfx_kthread+0x10/0x10
[  174.702179]  ret_from_fork+0x41/0x80
[  174.702833]  ? __pfx_kthread+0x10/0x10
[  174.703442]  ret_from_fork_asm+0x1a/0x30
[  174.703699]  </TASK>
[  174.703887] ---[ end trace 0000000000000000 ]---
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