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

Environment
qemu-x86_64

------------[ cut here ]------------
[  139.995828] WARNING: CPU: 1 PID: 2550 at drivers/gpu/drm/drm_framebuffer.c:869 drm_framebuffer_init+0x49/0x8d0
[  139.996333] Modules linked in:
[  139.996865] CPU: 1 UID: 0 PID: 2550 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  139.997672] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  139.998268] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  139.998547] RIP: 0010:drm_framebuffer_init+0x49/0x8d0
[  139.999126] Code: 89 e5 41 57 41 56 41 55 41 54 53 48 89 f3 48 83 ec 28 80 3c 11 00 48 89 7d c8 0f 85 1c 07 00 00 48 8b 75 c8 48 39 33 74 20 90 <0f> 0b 90 41 bf ea ff ff ff 48 83 c4 28 44 89 f8 5b 41 5c 41 5d 41
[  140.000178] RSP: 0000:ffff88810a8a7b20 EFLAGS: 00010246
[  140.000407] RAX: ffff88810a8a7ba8 RBX: ffff88810a8a7c28 RCX: 1ffff11021514f8e
[  140.001235] RDX: dffffc0000000000 RSI: ffff88810ab67000 RDI: ffff88810ab67000
[  140.001524] RBP: ffff88810a8a7b70 R08: ffff88810ab67000 R09: ffffffffa11d8e20
[  140.001809] R10: 0000000000000003 R11: 0000000084fb3352 R12: 1ffff11021514f71
[  140.002105] R13: ffff88810a8a7c70 R14: ffff88810a8a7db8 R15: 0000000000000000
[  140.002404] FS:  0000000000000000(0000) GS:ffff8881b7f72000(0000) knlGS:0000000000000000
[  140.003005] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.003222] CR2: 00007ffff7ffe000 CR3: 00000000100bc000 CR4: 00000000000006f0
[  140.003936] DR0: ffffffffa3252440 DR1: ffffffffa3252441 DR2: ffffffffa3252443
[  140.004211] DR3: ffffffffa3252445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.004572] Call Trace:
[  140.004945]  <TASK>
[  140.005056]  ? trace_preempt_on+0x20/0xc0
[  140.005270]  ? add_dr+0xc1/0x1d0
[  140.005470]  drm_test_framebuffer_init_bad_format+0xfc/0x240
[  140.006058]  ? add_dr+0x148/0x1d0
[  140.006216]  ? __pfx_drm_test_framebuffer_init_bad_format+0x10/0x10
[  140.006505]  ? __drmm_add_action+0x1a4/0x280
[  140.007063]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  140.007292]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  140.007836]  ? __drmm_add_action_or_reset+0x22/0x50
[  140.008037]  ? __schedule+0x10cc/0x2b60
[  140.008238]  ? __pfx_read_tsc+0x10/0x10
[  140.008440]  ? ktime_get_ts64+0x86/0x230
[  140.008790]  kunit_try_run_case+0x1a5/0x480
[  140.009015]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.009274]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.009454]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.009857]  ? __kthread_parkme+0x82/0x180
[  140.010070]  ? preempt_count_sub+0x50/0x80
[  140.010296]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.010501]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.010951]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.011191]  kthread+0x337/0x6f0
[  140.011365]  ? trace_preempt_on+0x20/0xc0
[  140.011782]  ? __pfx_kthread+0x10/0x10
[  140.011987]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.012208]  ? calculate_sigpending+0x7b/0xa0
[  140.012434]  ? __pfx_kthread+0x10/0x10
[  140.012929]  ret_from_fork+0x116/0x1d0
[  140.013141]  ? __pfx_kthread+0x10/0x10
[  140.013360]  ret_from_fork_asm+0x1a/0x30
[  140.013723]  </TASK>
[  140.013856] ---[ end trace 0000000000000000 ]---

------------[ cut here ]------------
[  139.710371] WARNING: CPU: 0 PID: 2551 at drivers/gpu/drm/drm_framebuffer.c:869 drm_framebuffer_init+0x49/0x8d0
[  139.710900] Modules linked in:
[  139.711150] CPU: 0 UID: 0 PID: 2551 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  139.711952] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  139.712384] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  139.713295] RIP: 0010:drm_framebuffer_init+0x49/0x8d0
[  139.713543] Code: 89 e5 41 57 41 56 41 55 41 54 53 48 89 f3 48 83 ec 28 80 3c 11 00 48 89 7d c8 0f 85 1c 07 00 00 48 8b 75 c8 48 39 33 74 20 90 <0f> 0b 90 41 bf ea ff ff ff 48 83 c4 28 44 89 f8 5b 41 5c 41 5d 41
[  139.714713] RSP: 0000:ffff888109b1fb20 EFLAGS: 00010246
[  139.715034] RAX: ffff888109b1fba8 RBX: ffff888109b1fc28 RCX: 1ffff11021363f8e
[  139.715526] RDX: dffffc0000000000 RSI: ffff888109896000 RDI: ffff888109896000
[  139.716222] RBP: ffff888109b1fb70 R08: ffff888109896000 R09: ffffffffb23d8e20
[  139.716513] R10: 0000000000000003 R11: 0000000099c1d111 R12: 1ffff11021363f71
[  139.717144] R13: ffff888109b1fc70 R14: ffff888109b1fdb8 R15: 0000000000000000
[  139.717492] FS:  0000000000000000(0000) GS:ffff8881a0272000(0000) knlGS:0000000000000000
[  139.718054] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.718629] CR2: 00007ffff7ffe000 CR3: 0000000169cbc000 CR4: 00000000000006f0
[  139.719086] DR0: ffffffffb4452440 DR1: ffffffffb4452441 DR2: ffffffffb4452443
[  139.719368] DR3: ffffffffb4452445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  139.719916] Call Trace:
[  139.720155]  <TASK>
[  139.720421]  ? trace_preempt_on+0x20/0xc0
[  139.720888]  ? add_dr+0xc1/0x1d0
[  139.721078]  drm_test_framebuffer_init_bad_format+0xfc/0x240
[  139.721317]  ? add_dr+0x148/0x1d0
[  139.721479]  ? __pfx_drm_test_framebuffer_init_bad_format+0x10/0x10
[  139.722084]  ? __drmm_add_action+0x1a4/0x280
[  139.722744]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  139.723338]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  139.723603]  ? __drmm_add_action_or_reset+0x22/0x50
[  139.724224]  ? __schedule+0x10cc/0x2b60
[  139.724493]  ? __pfx_read_tsc+0x10/0x10
[  139.725067]  ? ktime_get_ts64+0x86/0x230
[  139.725360]  kunit_try_run_case+0x1a5/0x480
[  139.725569]  ? __pfx_kunit_try_run_case+0x10/0x10
[  139.726183]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  139.726484]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  139.726910]  ? __kthread_parkme+0x82/0x180
[  139.727420]  ? preempt_count_sub+0x50/0x80
[  139.727638]  ? __pfx_kunit_try_run_case+0x10/0x10
[  139.728130]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  139.728370]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  139.728627]  kthread+0x337/0x6f0
[  139.729128]  ? trace_preempt_on+0x20/0xc0
[  139.729729]  ? __pfx_kthread+0x10/0x10
[  139.729997]  ? _raw_spin_unlock_irq+0x47/0x80
[  139.730343]  ? calculate_sigpending+0x7b/0xa0
[  139.730546]  ? __pfx_kthread+0x10/0x10
[  139.731157]  ret_from_fork+0x116/0x1d0
[  139.731443]  ? __pfx_kthread+0x10/0x10
[  139.731863]  ret_from_fork_asm+0x1a/0x30
[  139.732317]  </TASK>
[  139.732451] ---[ end trace 0000000000000000 ]---