Hay
Date
May 15, 2025, 10:38 a.m.

Environment
qemu-x86_64

------------[ cut here ]------------
[  162.503325] WARNING: CPU: 0 PID: 2772 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_vscale+0x130/0x190
[  162.504114] Modules linked in:
[  162.504368] CPU: 0 UID: 0 PID: 2772 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) 
[  162.506379] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  162.507005] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  162.507893] RIP: 0010:drm_rect_calc_vscale+0x130/0x190
[  162.508216] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 c0 03 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
[  162.509640] RSP: 0000:ffff88810a637c78 EFLAGS: 00010286
[  162.509918] RAX: 0000000000010000 RBX: 00000000ffff0000 RCX: 00000000ffff0000
[  162.511040] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ffffffffa88312f4
[  162.511438] RBP: ffff88810a637ca0 R08: 0000000000000000 R09: ffffed10212a9360
[  162.512038] R10: ffff888109549b07 R11: 0000000000000000 R12: ffffffffa88312e0
[  162.513128] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810a637d38
[  162.514666] FS:  0000000000000000(0000) GS:ffff8881b0876000(0000) knlGS:0000000000000000
[  162.515409] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  162.515681] CR2: 00007ffff7ffe000 CR3: 000000002bebc000 CR4: 00000000000006f0
[  162.515931] DR0: ffffffffaa84e480 DR1: ffffffffaa84e481 DR2: ffffffffaa84e482
[  162.516172] DR3: ffffffffaa84e483 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  162.516431] Call Trace:
[  162.516571]  <TASK>
[  162.516714]  drm_test_rect_calc_vscale+0x108/0x270
[  162.516950]  ? __pfx_drm_test_rect_calc_vscale+0x10/0x10
[  162.519016]  ? __schedule+0x10cc/0x2b60
[  162.519869]  ? __pfx_read_tsc+0x10/0x10
[  162.520331]  ? ktime_get_ts64+0x86/0x230
[  162.520761]  kunit_try_run_case+0x1a5/0x480
[  162.521001]  ? __pfx_kunit_try_run_case+0x10/0x10
[  162.521414]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  162.521842]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  162.522126]  ? __kthread_parkme+0x82/0x180
[  162.522756]  ? preempt_count_sub+0x50/0x80
[  162.523871]  ? __pfx_kunit_try_run_case+0x10/0x10
[  162.524307]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  162.525008]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  162.525318]  kthread+0x337/0x6f0
[  162.525747]  ? trace_preempt_on+0x20/0xc0
[  162.526114]  ? __pfx_kthread+0x10/0x10
[  162.526351]  ? _raw_spin_unlock_irq+0x47/0x80
[  162.526917]  ? calculate_sigpending+0x7b/0xa0
[  162.527613]  ? __pfx_kthread+0x10/0x10
[  162.527933]  ret_from_fork+0x116/0x1d0
[  162.528300]  ? __pfx_kthread+0x10/0x10
[  162.528514]  ret_from_fork_asm+0x1a/0x30
[  162.529073]  </TASK>
[  162.529364] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  162.475548] WARNING: CPU: 0 PID: 2770 at drivers/gpu/drm/drm_rect.c:137 drm_rect_calc_vscale+0x130/0x190
[  162.476772] Modules linked in:
[  162.477213] CPU: 0 UID: 0 PID: 2770 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) 
[  162.478119] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  162.478630] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  162.480014] RIP: 0010:drm_rect_calc_vscale+0x130/0x190
[  162.480313] Code: 7f 43 41 39 ce 7c 3e 48 83 c4 08 89 c8 5b 41 5c 41 5d 41 5e 5d e9 c0 03 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
[  162.481718] RSP: 0000:ffff88810a6e7c78 EFLAGS: 00010286
[  162.481888] RAX: 00000000ffff0000 RBX: 00000000ffff0000 RCX: 0000000000010000
[  162.482029] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ffffffffa88312bc
[  162.482164] RBP: ffff88810a6e7ca0 R08: 0000000000000000 R09: ffffed10212a9320
[  162.482341] R10: ffff888109549907 R11: 0000000000000000 R12: ffffffffa88312a8
[  162.482601] R13: 0000000000000000 R14: 000000007fffffff R15: ffff88810a6e7d38
[  162.482879] FS:  0000000000000000(0000) GS:ffff8881b0876000(0000) knlGS:0000000000000000
[  162.483502] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  162.483824] CR2: 00007ffff7ffe000 CR3: 000000002bebc000 CR4: 00000000000006f0
[  162.484655] DR0: ffffffffaa84e480 DR1: ffffffffaa84e481 DR2: ffffffffaa84e482
[  162.484931] DR3: ffffffffaa84e483 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  162.486013] Call Trace:
[  162.486353]  <TASK>
[  162.486507]  drm_test_rect_calc_vscale+0x108/0x270
[  162.486912]  ? __pfx_drm_test_rect_calc_vscale+0x10/0x10
[  162.487330]  ? __schedule+0x10cc/0x2b60
[  162.487656]  ? __pfx_read_tsc+0x10/0x10
[  162.488602]  ? ktime_get_ts64+0x86/0x230
[  162.488866]  kunit_try_run_case+0x1a5/0x480
[  162.489087]  ? __pfx_kunit_try_run_case+0x10/0x10
[  162.489281]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  162.489499]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  162.490368]  ? __kthread_parkme+0x82/0x180
[  162.491299]  ? preempt_count_sub+0x50/0x80
[  162.491860]  ? __pfx_kunit_try_run_case+0x10/0x10
[  162.492243]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  162.492627]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  162.493047]  kthread+0x337/0x6f0
[  162.493310]  ? trace_preempt_on+0x20/0xc0
[  162.493576]  ? __pfx_kthread+0x10/0x10
[  162.493807]  ? _raw_spin_unlock_irq+0x47/0x80
[  162.494042]  ? calculate_sigpending+0x7b/0xa0
[  162.494611]  ? __pfx_kthread+0x10/0x10
[  162.495221]  ret_from_fork+0x116/0x1d0
[  162.495847]  ? __pfx_kthread+0x10/0x10
[  162.496222]  ret_from_fork_asm+0x1a/0x30
[  162.497164]  </TASK>
[  162.497430] ---[ end trace 0000000000000000 ]---