Hay
Date
July 1, 2025, 3:08 p.m.

Environment
qemu-x86_64

------------[ cut here ]------------
[  140.799621] WARNING: CPU: 0 PID: 1975 at drivers/gpu/drm/drm_connector.c:861 drm_connector_dynamic_register+0xbf/0x110
[  140.800189] Modules linked in:
[  140.800365] CPU: 0 UID: 0 PID: 1975 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[  140.801880] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.802465] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.803663] RIP: 0010:drm_connector_dynamic_register+0xbf/0x110
[  140.804605] Code: 49 8d 7c 24 60 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 02 7e 36 31 c0 41 80 7c 24 60 00 75 1b 5b 41 5c 5d c3 cc cc cc cc 90 <0f> 0b 90 b8 ea ff ff ff 5b 41 5c 5d c3 cc cc cc cc 48 89 df e8 68
[  140.805571] RSP: 0000:ffff88810a3d7c90 EFLAGS: 00010246
[  140.805763] RAX: dffffc0000000000 RBX: ffff88810a838000 RCX: 0000000000000000
[  140.805998] RDX: 1ffff11021507032 RSI: ffffffff82e05658 RDI: ffff88810a838190
[  140.806310] RBP: ffff88810a3d7ca0 R08: 1ffff11020073f69 R09: ffffed102147af65
[  140.806816] R10: 0000000000000003 R11: ffffffff82386fb8 R12: 0000000000000000
[  140.807236] R13: ffff88810a3d7d38 R14: ffff88810039fc50 R15: ffff88810039fc58
[  140.807956] FS:  0000000000000000(0000) GS:ffff8881d3474000(0000) knlGS:0000000000000000
[  140.808205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.808382] CR2: 00007ffff7ffe000 CR3: 000000005d8bc000 CR4: 00000000000006f0
[  140.808738] DR0: ffffffff87c50440 DR1: ffffffff87c50441 DR2: ffffffff87c50442
[  140.809782] DR3: ffffffff87c50443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.810473] Call Trace:
[  140.810807]  <TASK>
[  140.811052]  drm_test_drm_connector_dynamic_register_early_no_init+0x104/0x290
[  140.811827]  ? __pfx_drm_test_drm_connector_dynamic_register_early_no_init+0x10/0x10
[  140.812430]  ? __schedule+0x10cc/0x2b60
[  140.812686]  ? __pfx_read_tsc+0x10/0x10
[  140.813124]  ? ktime_get_ts64+0x86/0x230
[  140.813492]  kunit_try_run_case+0x1a5/0x480
[  140.813891]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.814124]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.814294]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.814466]  ? __kthread_parkme+0x82/0x180
[  140.814809]  ? preempt_count_sub+0x50/0x80
[  140.815245]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.815849]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.816415]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.817181]  kthread+0x337/0x6f0
[  140.817592]  ? trace_preempt_on+0x20/0xc0
[  140.818069]  ? __pfx_kthread+0x10/0x10
[  140.818334]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.818489]  ? calculate_sigpending+0x7b/0xa0
[  140.818913]  ? __pfx_kthread+0x10/0x10
[  140.819293]  ret_from_fork+0x116/0x1d0
[  140.819739]  ? __pfx_kthread+0x10/0x10
[  140.820091]  ret_from_fork_asm+0x1a/0x30
[  140.820246]  </TASK>
[  140.820338] ---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
[  140.884501] WARNING: CPU: 0 PID: 1983 at drivers/gpu/drm/drm_connector.c:861 drm_connector_dynamic_register+0xbf/0x110
[  140.884857] Modules linked in:
[  140.885218] CPU: 0 UID: 0 PID: 1983 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[  140.887072] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.887961] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.888827] RIP: 0010:drm_connector_dynamic_register+0xbf/0x110
[  140.889053] Code: 49 8d 7c 24 60 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 02 7e 36 31 c0 41 80 7c 24 60 00 75 1b 5b 41 5c 5d c3 cc cc cc cc 90 <0f> 0b 90 b8 ea ff ff ff 5b 41 5c 5d c3 cc cc cc cc 48 89 df e8 68
[  140.889589] RSP: 0000:ffff88810a367c90 EFLAGS: 00010246
[  140.890418] RAX: dffffc0000000000 RBX: ffff88810a2be000 RCX: 0000000000000000
[  140.891316] RDX: 1ffff11021457c32 RSI: ffffffff82e05658 RDI: ffff88810a2be190
[  140.892163] RBP: ffff88810a367ca0 R08: 1ffff11020073f69 R09: ffffed102146cf65
[  140.892986] R10: 0000000000000003 R11: ffffffff818049da R12: 0000000000000000
[  140.893798] R13: ffff88810a367d38 R14: ffff88810039fc50 R15: ffff88810039fc58
[  140.894365] FS:  0000000000000000(0000) GS:ffff8881d3474000(0000) knlGS:0000000000000000
[  140.894790] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.895310] CR2: 00007ffff7ffe000 CR3: 000000005d8bc000 CR4: 00000000000006f0
[  140.895822] DR0: ffffffff87c50440 DR1: ffffffff87c50441 DR2: ffffffff87c50442
[  140.896052] DR3: ffffffff87c50443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.896271] Call Trace:
[  140.896374]  <TASK>
[  140.896476]  drm_test_drm_connector_dynamic_register_no_init+0x104/0x290
[  140.897133]  ? __pfx_drm_test_drm_connector_dynamic_register_no_init+0x10/0x10
[  140.897842]  ? __schedule+0x10cc/0x2b60
[  140.898243]  ? __pfx_read_tsc+0x10/0x10
[  140.898702]  ? ktime_get_ts64+0x86/0x230
[  140.899141]  kunit_try_run_case+0x1a5/0x480
[  140.899741]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.900193]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.900611]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.901107]  ? __kthread_parkme+0x82/0x180
[  140.901398]  ? preempt_count_sub+0x50/0x80
[  140.901553]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.901779]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.902269]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.902981]  kthread+0x337/0x6f0
[  140.903305]  ? trace_preempt_on+0x20/0xc0
[  140.903696]  ? __pfx_kthread+0x10/0x10
[  140.904036]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.904472]  ? calculate_sigpending+0x7b/0xa0
[  140.904652]  ? __pfx_kthread+0x10/0x10
[  140.905049]  ret_from_fork+0x116/0x1d0
[  140.905276]  ? __pfx_kthread+0x10/0x10
[  140.905413]  ret_from_fork_asm+0x1a/0x30
[  140.905563]  </TASK>
[  140.905697] ---[ end trace 0000000000000000 ]---