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[  139.917585] drm-kunit-mock-device drm_test_framebuffer_free.drm-kunit-mock-device: [drm] drm_WARN_ON(!list_empty(&fb->filp_head))
[  139.917767] WARNING: CPU: 1 PID: 2297 at drivers/gpu/drm/drm_framebuffer.c:832 drm_framebuffer_free+0x136/0x1b0
[  139.919266] Modules linked in:
[  139.919458] CPU: 1 UID: 0 PID: 2297 Comm: kunit_try_catch Tainted: G    B D W        N 6.14.10-rc1 #1
[  139.920332] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  139.920518] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  139.921430] RIP: 0010:drm_framebuffer_free+0x136/0x1b0
[  139.922152] Code: 8b 7d 50 4d 85 ff 74 2b 4c 89 ef e8 64 63 82 00 48 c7 c1 e0 61 5b 98 4c 89 fa 48 c7 c7 40 62 5b 98 48 89 c6 e8 eb c7 86 fe 90 <0f> 0b 90 90 e9 25 ff ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 ea
[  139.923371] RSP: 0000:ffff888105f97b68 EFLAGS: 00010282
[  139.923753] RAX: 0000000000000000 RBX: ffff888105f97c40 RCX: 1ffffffff3264420
[  139.924678] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[  139.925112] RBP: ffff888105f97b90 R08: 0000000000000000 R09: fffffbfff3264420
[  139.925403] R10: 0000000000000003 R11: 00000000000325c8 R12: ffff888105f97c18
[  139.925872] R13: ffff888105d7d000 R14: ffff888100c8a000 R15: ffff888106807200
[  139.926194] FS:  0000000000000000(0000) GS:ffff88815b100000(0000) knlGS:0000000000000000
[  139.926521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.926810] CR2: ffffffffffffffff CR3: 00000000244b8000 CR4: 00000000000006f0
[  139.927235] DR0: ffffffff9a607264 DR1: ffffffff9a607269 DR2: ffffffff9a60726a
[  139.927504] DR3: ffffffff9a60726b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  139.927850] Call Trace:
[  139.928074]  <TASK>
[  139.928205]  drm_test_framebuffer_free+0x1ac/0x610
[  139.928401]  ? __pfx_drm_test_framebuffer_free+0x10/0x10
[  139.928782]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  139.929020]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  139.929309]  ? __drmm_add_action_or_reset+0x22/0x50
[  139.929507]  ? __schedule+0xce8/0x2840
[  139.929688]  ? __pfx_read_tsc+0x10/0x10
[  139.930151]  ? ktime_get_ts64+0x86/0x230
[  139.930420]  kunit_try_run_case+0x1a6/0x480
[  139.930712]  ? __pfx_kunit_try_run_case+0x10/0x10
[  139.930976]  ? _raw_spin_lock_irqsave+0xa2/0x110
[  139.931158]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  139.931415]  ? __kthread_parkme+0x82/0x160
[  139.931590]  ? preempt_count_sub+0x50/0x80
[  139.931806]  ? __pfx_kunit_try_run_case+0x10/0x10
[  139.932136]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  139.932399]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  139.932769]  kthread+0x324/0x6e0
[  139.932987]  ? trace_preempt_on+0x20/0xc0
[  139.933176]  ? __pfx_kthread+0x10/0x10
[  139.933361]  ? _raw_spin_unlock_irq+0x47/0x80
[  139.933612]  ? calculate_sigpending+0x7b/0xa0
[  139.933814]  ? __pfx_kthread+0x10/0x10
[  139.934316]  ret_from_fork+0x41/0x80
[  139.934501]  ? __pfx_kthread+0x10/0x10
[  139.934838]  ret_from_fork_asm+0x1a/0x30
[  139.935090]  </TASK>
[  139.935185] ---[ end trace 0000000000000000 ]---