------------[ cut here ]------------
[  197.490278] drm-kunit-mock-device drm_test_framebuffer_free.drm-kunit-mock-device: [drm] drm_WARN_ON(!list_empty(&fb->filp_head))
[  197.490400] WARNING: drivers/gpu/drm/drm_framebuffer.c:832 at drm_framebuffer_free+0x13f/0x1c0, CPU#0: kunit_try_catch/2694
[  197.491404] Modules linked in:
[  197.491558] CPU: 0 UID: 0 PID: 2694 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) 
[  197.492071] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  197.492319] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  197.492980] RIP: 0010:drm_framebuffer_free+0x13f/0x1c0
[  197.493733] Code: 8b 7d 50 4d 85 ff 74 2b 4c 89 ef e8 db 06 89 00 48 c7 c1 a0 e8 df 90 4c 89 fa 48 c7 c7 00 e9 df 90 48 89 c6 e8 c2 26 79 fe 90 <0f> 0b 90 90 e9 1c ff ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 ea
[  197.494903] RSP: 0000:ffff888104a4fb68 EFLAGS: 00010282
[  197.495309] RAX: 0000000000000000 RBX: ffff888104a4fc40 RCX: 1ffffffff2364b70
[  197.495770] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[  197.496286] RBP: ffff888104a4fb90 R08: 0000000000000000 R09: fffffbfff2364b70
[  197.496748] R10: 0000000000000003 R11: 0000000000039898 R12: ffff888104a4fc18
[  197.497178] R13: ffff888104970800 R14: ffff888104a1c000 R15: ffff888107dd4380
[  197.497472] FS:  0000000000000000(0000) GS:ffff8881c821d000(0000) knlGS:0000000000000000
[  197.497781] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  197.498081] CR2: 00007ffff7ffe000 CR3: 0000000123abc000 CR4: 00000000000006f0
[  197.498439] DR0: ffffffff92ea9500 DR1: ffffffff92ea9501 DR2: ffffffff92ea9502
[  197.498747] DR3: ffffffff92ea9503 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  197.499111] Call Trace:
[  197.499258]  <TASK>
[  197.499372]  drm_test_framebuffer_free+0x1ab/0x610
[  197.500082]  ? __pfx_drm_test_framebuffer_free+0x10/0x10
[  197.500422]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  197.500917]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  197.501306]  ? __drmm_add_action_or_reset+0x22/0x50
[  197.501721]  ? __schedule+0x10cc/0x2b60
[  197.502205]  ? __pfx_read_tsc+0x10/0x10
[  197.502500]  ? ktime_get_ts64+0x86/0x230
[  197.502718]  kunit_try_run_case+0x1a5/0x480
[  197.502934]  ? __pfx_kunit_try_run_case+0x10/0x10
[  197.503349]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  197.503547]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  197.504012]  ? __kthread_parkme+0x82/0x180
[  197.504281]  ? preempt_count_sub+0x50/0x80
[  197.504482]  ? __pfx_kunit_try_run_case+0x10/0x10
[  197.504776]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  197.505076]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  197.505367]  kthread+0x337/0x6f0
[  197.505530]  ? trace_preempt_on+0x20/0xc0
[  197.505756]  ? __pfx_kthread+0x10/0x10
[  197.505979]  ? _raw_spin_unlock_irq+0x47/0x80
[  197.506185]  ? calculate_sigpending+0x7b/0xa0
[  197.506403]  ? __pfx_kthread+0x10/0x10
[  197.506622]  ret_from_fork+0x116/0x1d0
[  197.506787]  ? __pfx_kthread+0x10/0x10
[  197.507019]  ret_from_fork_asm+0x1a/0x30
[  197.507214]  </TASK>
[  197.507476] ---[ end trace 0000000000000000 ]---