Hay
Date
July 4, 2025, 11:11 p.m.

Environment
qemu-x86_64

------------[ cut here ]------------
[  141.488907] WARNING: CPU: 1 PID: 2549 at drivers/gpu/drm/drm_framebuffer.c:867 drm_framebuffer_init+0x44/0x300
[  141.489379] Modules linked in:
[  141.489903] CPU: 1 UID: 0 PID: 2549 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[  141.490941] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  141.491432] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  141.492376] RIP: 0010:drm_framebuffer_init+0x44/0x300
[  141.492728] Code: 56 49 89 d6 48 89 f2 41 55 48 c1 ea 03 41 54 49 89 fc 53 48 89 f3 48 83 ec 18 80 3c 02 00 0f 85 00 02 00 00 4c 39 23 74 20 90 <0f> 0b 90 41 bd ea ff ff ff 48 83 c4 18 44 89 e8 5b 41 5c 41 5d 41
[  141.493258] RSP: 0000:ffff88810ad7fb30 EFLAGS: 00010246
[  141.493664] RAX: dffffc0000000000 RBX: ffff88810ad7fc28 RCX: 0000000000000000
[  141.493949] RDX: 1ffff110215aff8e RSI: ffff88810ad7fc28 RDI: ffff88810ad7fc70
[  141.494304] RBP: ffff88810ad7fb70 R08: ffff88810affa000 R09: ffffffffb2fd80e0
[  141.494619] R10: 0000000000000003 R11: 0000000063191761 R12: ffff88810affa000
[  141.494945] R13: ffff88810039fae8 R14: ffff88810ad7fba8 R15: 0000000000000000
[  141.495402] FS:  0000000000000000(0000) GS:ffff8881a6174000(0000) knlGS:0000000000000000
[  141.495766] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  141.496005] CR2: 00007ffff7ffe000 CR3: 00000000774bc000 CR4: 00000000000006f0
[  141.496417] DR0: ffffffffb5050444 DR1: ffffffffb5050449 DR2: ffffffffb505044a
[  141.496746] DR3: ffffffffb505044b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  141.497068] Call Trace:
[  141.497416]  <TASK>
[  141.497705]  ? add_dr+0xc1/0x1d0
[  141.497883]  drm_test_framebuffer_init_bad_format+0xfc/0x240
[  141.498352]  ? add_dr+0x148/0x1d0
[  141.498527]  ? __pfx_drm_test_framebuffer_init_bad_format+0x10/0x10
[  141.498791]  ? __drmm_add_action+0x1a4/0x280
[  141.499030]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  141.499339]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  141.499513]  ? __drmm_add_action_or_reset+0x22/0x50
[  141.499871]  ? __schedule+0x10cc/0x2b60
[  141.500082]  ? __pfx_read_tsc+0x10/0x10
[  141.500362]  ? ktime_get_ts64+0x86/0x230
[  141.500667]  kunit_try_run_case+0x1a5/0x480
[  141.500976]  ? __pfx_kunit_try_run_case+0x10/0x10
[  141.501668]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  141.501940]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  141.502142]  ? __kthread_parkme+0x82/0x180
[  141.502465]  ? preempt_count_sub+0x50/0x80
[  141.502748]  ? __pfx_kunit_try_run_case+0x10/0x10
[  141.503084]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  141.504528]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  141.504822]  kthread+0x337/0x6f0
[  141.504959]  ? trace_preempt_on+0x20/0xc0
[  141.505109]  ? __pfx_kthread+0x10/0x10
[  141.505265]  ? _raw_spin_unlock_irq+0x47/0x80
[  141.505418]  ? calculate_sigpending+0x7b/0xa0
[  141.505575]  ? __pfx_kthread+0x10/0x10
[  141.505714]  ret_from_fork+0x116/0x1d0
[  141.505849]  ? __pfx_kthread+0x10/0x10
[  141.505984]  ret_from_fork_asm+0x1a/0x30
[  141.506135]  </TASK>
[  141.507052] ---[ end trace 0000000000000000 ]---