Re: [PATCH v3 2/2] drm: ensure blend mode supported if alpha exposed
From: kernel test robot
Date: Tue May 26 2026 - 10:37:18 EST
Hello,
kernel test robot noticed "RIP:drm_client_sysrq_unregister[drm]" on:
commit: 45cd1cd31c81786e8c8965e6b7304bef6a3e3965 ("[PATCH v3 2/2] drm: ensure blend mode supported if alpha exposed")
url: https://github.com/intel-lab-lkp/linux/commits/Leandro-Ribeiro/drm-drm_blend-allow-blend-mode-property-without-PREMULTI/20260519-021047
patch link: https://lore.kernel.org/all/20260518175429.80615-3-leandro.ribeiro@xxxxxxxxxxxxx/
patch subject: [PATCH v3 2/2] drm: ensure blend mode supported if alpha exposed
in testcase: mdadm-selftests
version: mdadm-selftests-x86_64-3822896a-1_20251102
with following parameters:
disk: 1HDD
test_prefix: 19repair-does-not-destroy
config: x86_64-rhel-9.4-func
compiler: gcc-14
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (Haswell) with 16G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202605262216.c4670030-lkp@xxxxxxxxx
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260526/202605262216.c4670030-lkp@xxxxxxxxx
[ 36.308085][ T190] i915 0000:00:02.0: [drm] *ERROR* [PLANE:47:cursor A] pixel format with alpha exposed but blend mode not setup
[ 36.321077][ T190] i915 0000:00:02.0: [drm] *ERROR* [PLANE:66:cursor B] pixel format with alpha exposed but blend mode not setup
0m] Reached targ[ 36.333998][ T65] ata1.00: Enabling discard_zeroes_data
[ 36.370146][ T190] i915 0000:00:02.0: [drm] drm_WARN_ON(list_empty(&dev->client_sysrq_list))
[ 36.370160][ T190] WARNING: drivers/gpu/drm/drm_client_sysrq.c:58 at drm_client_sysrq_unregister+0x1e2/0x2b0 [drm], CPU#2: (udev-worker)/190
[ 36.392616][ T190] Modules linked in: sd_mod snd_hda_codec_alc269 sg kvm_intel snd_hda_codec_realtek_lib snd_hda_scodec_component i915(+) snd_hda_codec_generic kvm dell_wmi snd_hda_intel dell_smbios snd_hda_codec dell_wmi_descriptor intel_gtt irqbypass sparse_keymap drm_buddy snd_hda_core rapl ahci ttm snd_intel_dspcfg intel_cstate rfkill i2c_i801 snd_intel_sdw_acpi libahci drm_display_helper dcdbas mei_wdt snd_hwdep i2c_smbus intel_uncore pcspkr snd_pcm cec mei_me drm_client_lib lpc_ich snd_timer mei libata drm_kms_helper snd video wmi soundcore fuse drm nfnetlink
[ 36.443051][ T190] CPU: 2 UID: 0 PID: 190 Comm: (udev-worker) Tainted: G S 7.1.0-rc2+ #1 PREEMPT(lazy)
[ 36.454086][ T190] Tainted: [S]=CPU_OUT_OF_SPEC
[ 36.458763][ T190] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[ 36.466765][ T190] RIP: 0010:drm_client_sysrq_unregister+0x1ec/0x2b0 [drm]
[ 36.473974][ T190] Code: 85 a3 00 00 00 48 8b 6b 50 48 85 ed 74 26 48 89 df e8 e8 18 bc c2 48 89 c6 48 8d 3d 0e 56 d3 ff 48 c7 c1 e0 5d 2a c0 48 89 ea <67> 48 0f b9 3a e9 54 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 89
[ 36.493547][ T190] RSP: 0018:ffffc90000abf1d0 EFLAGS: 00010246
[ 36.499552][ T190] RAX: ffffffffc207c6e0 RBX: ffff88810fed00d0 RCX: ffffffffc02a5de0
[ 36.507486][ T190] RDX: ffff88810db42240 RSI: ffffffffc207c6e0 RDI: ffffffffc020a400
[ 36.515390][ T190] RBP: ffff88810db42240 R08: 0000000000000001 R09: fffff52000157e2f
[ 36.523305][ T190] R10: ffffc90000abf17f R11: 0000000000000001 R12: 1ffff92000157e4b
[ 36.531216][ T190] R13: ffff888116810038 R14: ffff888116810c58 R15: 00000000ffffffea
[ 36.539120][ T190] FS: 00007ff6e25fc9c0(0000) GS:ffff8884223cc000(0000) knlGS:0000000000000000
[ 36.548002][ T190] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 36.554507][ T190] CR2: 00007ff6e3131c70 CR3: 000000040da52001 CR4: 00000000001726f0
[ 36.562414][ T190] Call Trace:
[ 36.565612][ T190] <TASK>
[ 36.568470][ T190] drm_dev_unregister+0x43/0x2b0 [drm]
[ 36.574035][ T190] i915_driver_probe.cold+0xd4/0x108 [i915]
[ 36.581149][ T190] ? __pfx_i915_driver_probe+0x10/0x10 [i915]
[ 36.587859][ T190] ? drm_privacy_screen_get+0x2bf/0x370 [drm]
[ 36.594026][ T190] ? intel_display_driver_probe_defer+0x41/0x70 [i915]
[ 36.601922][ T190] ? i915_pci_probe+0x2a9/0x3b0 [i915]
[ 36.608026][ T190] ? __pfx_i915_pci_probe+0x10/0x10 [i915]
[ 36.614474][ T190] local_pci_probe+0xdb/0x1b0
[ 36.619092][ T190] pci_call_probe+0x153/0x4f0
[ 36.623705][ T190] ? down_write+0xc0/0x170
[ 36.628046][ T190] ? __pfx_pci_call_probe+0x10/0x10
[ 36.633180][ T190] ? __pfx__raw_spin_lock+0x10/0x10
[ 36.638320][ T190] ? pci_assign_irq+0x80/0x2f0
[ 36.643007][ T190] ? pci_match_device+0x3ac/0x630
[ 36.647958][ T190] ? kernfs_create_link+0x164/0x230
[ 36.653123][ T190] pci_device_probe+0x175/0x2f0
[ 36.657952][ T190] call_driver_probe+0x62/0x1f0
[ 36.662783][ T190] really_probe+0x197/0x770
[ 36.667229][ T190] __driver_probe_device+0x1ca/0x3f0
[ 36.672429][ T190] driver_probe_device+0x4a/0x130
[ 36.677407][ T190] __driver_attach+0x194/0x4f0
[ 36.682128][ T190] ? __pfx___driver_attach+0x10/0x10
[ 36.687355][ T190] bus_for_each_dev+0xef/0x170
[ 36.692062][ T190] ? kasan_unpoison+0x40/0x70
[ 36.696664][ T190] ? __pfx_bus_for_each_dev+0x10/0x10
[ 36.701958][ T190] ? __kasan_slab_alloc+0x2f/0x70
[ 36.706899][ T190] ? klist_add_tail+0x132/0x270
[ 36.711671][ T190] bus_add_driver+0x2a7/0x4f0
[ 36.716275][ T190] driver_register+0x1a1/0x370
[ 36.720958][ T190] i915_init+0x57/0x160 [i915]
[ 36.726406][ T190] ? __pfx_i915_init+0x10/0x10 [i915]
[ 36.732468][ T190] do_one_initcall+0x8d/0x3f0
[ 36.737064][ T190] ? __pfx_do_one_initcall+0x10/0x10
[ 36.742271][ T190] ? memset_orig+0x84/0xb0
[ 36.746610][ T190] ? kasan_unpoison+0x40/0x70
[ 36.751214][ T190] do_init_module+0x281/0x870
[ 36.755830][ T190] ? __pfx_do_init_module+0x10/0x10
[ 36.760954][ T190] ? kfree+0x195/0x430
[ 36.764954][ T190] ? klp_module_coming+0x210/0x2f0
[ 36.769992][ T190] load_module+0x1667/0x1fb0
[ 36.774509][ T190] ? kernel_read_file+0x3d6/0x870
[ 36.779461][ T190] ? __pfx_load_module+0x10/0x10
[ 36.784319][ T190] init_module_from_file+0x157/0x1b0
[ 36.789524][ T190] ? __pfx_init_module_from_file+0x10/0x10
[ 36.795243][ T190] ? __pfx_vfs_read+0x10/0x10
[ 36.799855][ T190] ? _raw_spin_lock+0x80/0xf0
[ 36.804459][ T190] ? __pfx__raw_spin_lock+0x10/0x10
[ 36.809596][ T190] ? __x64_sys_pread64+0x18d/0x1f0
[ 36.814641][ T190] idempotent_init_module+0x21c/0x770
[ 36.819932][ T190] ? __pfx_idempotent_init_module+0x10/0x10
[ 36.825745][ T190] ? fdget+0x54/0x3b0
[ 36.829663][ T190] ? security_capable+0x35/0xf0
[ 36.834444][ T190] __x64_sys_finit_module+0xca/0x170
[ 36.839650][ T190] do_syscall_64+0xdf/0x570
[ 36.844078][ T190] ? _raw_spin_lock+0x80/0xf0
[ 36.848684][ T190] ? kasan_save_track+0x10/0x30
[ 36.853460][ T190] ? __x64_sys_openat+0x104/0x1f0
[ 36.858405][ T190] ? put_unused_fd+0x104/0x1f0
[ 36.863095][ T190] ? __pfx___x64_sys_openat+0x10/0x10
[ 36.868395][ T190] ? do_sys_openat2+0xeb/0x170
[ 36.873076][ T190] ? seccomp_run_filters+0xb5/0x4f0
[ 36.878194][ T190] ? do_syscall_64+0x116/0x570
[ 36.882882][ T190] ? __seccomp_filter+0x22d/0xbf0
[ 36.887848][ T190] ? __x64_sys_openat+0x104/0x1f0
[ 36.892842][ T190] ? __pfx___seccomp_filter+0x10/0x10
[ 36.898133][ T190] ? security_capable+0x35/0xf0
[ 36.902904][ T190] ? do_syscall_64+0x116/0x570
[ 36.907580][ T190] ? do_syscall_64+0x94/0x570
[ 36.912175][ T190] ? irqentry_exit+0x3d/0x530
[ 36.916772][ T190] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 36.922603][ T190] RIP: 0033:0x7ff6e3158779
[ 36.926944][ T190] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4f 86 0d 00 f7 d8 64 89 01 48
[ 36.946501][ T190] RSP: 002b:00007fff7aae0e28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 36.954835][ T190] RAX: ffffffffffffffda RBX: 000055cc60482540 RCX: 00007ff6e3158779
[ 36.962812][ T190] RDX: 0000000000000000 RSI: 00007ff6e195e44d RDI: 000000000000001c
[ 36.970709][ T190] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055cc6043e1e0
[ 36.978618][ T190] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff6e195e44d
[ 36.986506][ T190] R13: 0000000000020000 R14: 000055cc6047ee40 R15: 0000000000000000
[ 36.994404][ T190] </TASK>
[ 36.997339][ T190] ---[ end trace 0000000000000000 ]---
[ 37.005688][ T65] sda: sda1 sda2
[ 37.009989][ T65] sd 0:0:0:0: [sda] Attached SCSI disk
[ 37.071483][ T69] sdb: sdb1 sdb2 sdb3 sdb4
[ 37.077745][ T69] sd 2:0:0:0: [sdb] Attached SCSI disk
[ 37.117310][ T21] intel_rapl_common: Found RAPL domain package
[ 37.124147][ T21] intel_rapl_common: Found RAPL domain core
[ 37.129992][ T21] intel_rapl_common: Found RAPL domain uncore
[ 37.136203][ T21] intel_rapl_common: Found RAPL domain dram
[ 37.142081][ T21] intel_rapl_common: package-0:package:long_term locked by BIOS
[ 37.149636][ T21] intel_rapl_common: package-0:package:short_term locked by BIOS
[ 37.159446][ T520] xor: automatically using best checksumming function avx
[ 37.172690][ T520] raid6: skipped pq benchmark and selected avx2x4
[ 37.179019][ T520] raid6: using avx2x2 recovery algorithm
[ 37.233537][ T190] ------------[ cut here ]------------
[ 37.238941][ T190] WARNING: drivers/gpu/drm/drm_mode_config.c:551 at drm_mode_config_cleanup+0x709/0x970 [drm], CPU#0: (udev-worker)/190
[ 37.251547][ T190] Modules linked in: libblake2b zstd_compress raid6_pq xor intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp sd_mod snd_hda_codec_alc269 sg kvm_intel snd_hda_codec_realtek_lib snd_hda_scodec_component i915(+) snd_hda_codec_generic kvm dell_wmi snd_hda_intel dell_smbios snd_hda_codec dell_wmi_descriptor intel_gtt irqbypass sparse_keymap drm_buddy snd_hda_core rapl ahci ttm snd_intel_dspcfg intel_cstate rfkill i2c_i801 snd_intel_sdw_acpi libahci drm_display_helper dcdbas mei_wdt snd_hwdep i2c_smbus intel_uncore pcspkr snd_pcm cec mei_me drm_client_lib lpc_ich snd_timer mei libata drm_kms_helper snd video wmi soundcore fuse drm nfnetlink
[ 37.312666][ T190] CPU: 0 UID: 0 PID: 190 Comm: (udev-worker) Tainted: G S W 7.1.0-rc2+ #1 PREEMPT(lazy)
[ 37.323948][ T190] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN
[ 37.329713][ T190] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[ 37.337905][ T190] RIP: 0010:drm_mode_config_cleanup+0x709/0x970 [drm]
[ 37.344776][ T190] Code: 84 24 c8 00 00 00 65 48 2b 05 cb 74 4d c7 0f 85 3a 02 00 00 48 81 c4 d0 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc <0f> 0b 49 bd 00 00 00 00 00 fc ff df 48 89 de 48 89 ef e8 a0 8e fa
[ 37.364363][ T190] RSP: 0018:ffffc90000abf110 EFLAGS: 00010287
[ 37.370385][ T190] RAX: ffff88815b67a020 RBX: ffffc90000abf140 RCX: 1ffff92000157e0d
[ 37.378322][ T190] RDX: 1ffff11022d02047 RSI: fffff52000157de8 RDI: ffffc90000abf070
[ 37.386226][ T190] RBP: ffff888116810000 R08: 0000000000000001 R09: fffff52000157dd4
[ 37.394141][ T190] R10: 0000000000000003 R11: 0000000000000007 R12: ffff888116810278
[ 37.402055][ T190] R13: ffff888116810238 R14: ffff888116810278 R15: dffffc0000000000
[ 37.409967][ T190] FS: 00007ff6e25fc9c0(0000) GS:ffff8884222cc000(0000) knlGS:0000000000000000
[ 37.418849][ T190] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 37.425372][ T190] CR2: 00007ff6e30b0000 CR3: 000000040da52003 CR4: 00000000001726f0
[ 37.433291][ T190] Call Trace:
[ 37.436512][ T190] <TASK>
[ 37.439393][ T190] ? __pfx_drm_mode_config_cleanup+0x10/0x10 [drm]
[ 37.446075][ T190] ? kfree+0x195/0x430
[ 37.450092][ T190] ? intel_atomic_global_obj_cleanup+0x29e/0x530 [i915]
[ 37.458027][ T190] intel_display_driver_remove_noirq+0xc2/0x230 [i915]
[ 37.465889][ T190] i915_driver_probe+0x935/0x9f0 [i915]
[ 37.472388][ T190] ? __pfx_i915_driver_probe+0x10/0x10 [i915]
[ 37.479405][ T190] ? drm_privacy_screen_get+0x2bf/0x370 [drm]
[ 37.485609][ T190] ? intel_display_driver_probe_defer+0x41/0x70 [i915]
[ 37.493583][ T190] ? i915_pci_probe+0x2a9/0x3b0 [i915]
[ 37.500188][ T190] ? __pfx_i915_pci_probe+0x10/0x10 [i915]
[ 37.507004][ T190] local_pci_probe+0xdb/0x1b0
[ 37.511650][ T190] pci_call_probe+0x153/0x4f0
[ 37.516275][ T190] ? down_write+0xc0/0x170
[ 37.520636][ T190] ? __pfx_pci_call_probe+0x10/0x10
[ 37.525783][ T190] ? __pfx__raw_spin_lock+0x10/0x10
[ 37.530930][ T190] ? pci_assign_irq+0x80/0x2f0
[ 37.535637][ T190] ? pci_match_device+0x3ac/0x630
[ 37.540612][ T190] ? kernfs_create_link+0x164/0x230
[ 37.545776][ T190] pci_device_probe+0x175/0x2f0
[ 37.550578][ T190] call_driver_probe+0x62/0x1f0
[ 37.555390][ T190] really_probe+0x197/0x770
[ 37.559846][ T190] __driver_probe_device+0x1ca/0x3f0
[ 37.565083][ T190] driver_probe_device+0x4a/0x130
[ 37.570058][ T190] __driver_attach+0x194/0x4f0
[ 37.574779][ T190] ? __pfx___driver_attach+0x10/0x10
[ 37.580011][ T190] bus_for_each_dev+0xef/0x170
[ 37.584726][ T190] ? kasan_unpoison+0x40/0x70
[ 37.589352][ T190] ? __pfx_bus_for_each_dev+0x10/0x10
[ 37.594675][ T190] ? __kasan_slab_alloc+0x2f/0x70
[ 37.599647][ T190] ? klist_add_tail+0x132/0x270
[ 37.604487][ T190] bus_add_driver+0x2a7/0x4f0
[ 37.609107][ T190] driver_register+0x1a1/0x370
[ 37.613853][ T190] i915_init+0x57/0x160 [i915]
[ 37.619564][ T190] ? __pfx_i915_init+0x10/0x10 [i915]
[ 37.625860][ T190] do_one_initcall+0x8d/0x3f0
[ 37.630498][ T190] ? __pfx_do_one_initcall+0x10/0x10
[ 37.635732][ T190] ? memset_orig+0x84/0xb0
[ 37.640108][ T190] ? kasan_unpoison+0x40/0x70
[ 37.644749][ T190] do_init_module+0x281/0x870
[ 37.649381][ T190] ? __pfx_do_init_module+0x10/0x10
[ 37.654530][ T190] ? kfree+0x195/0x430
[ 37.658546][ T190] ? klp_module_coming+0x210/0x2f0
[ 37.663620][ T190] load_module+0x1667/0x1fb0
[ 37.668176][ T190] ? kernel_read_file+0x3d6/0x870
[ 37.673155][ T190] ? __pfx_load_module+0x10/0x10
[ 37.678076][ T190] init_module_from_file+0x157/0x1b0
[ 37.683314][ T190] ? __pfx_init_module_from_file+0x10/0x10
[ 37.689091][ T190] ? __pfx_vfs_read+0x10/0x10
[ 37.693734][ T190] ? _raw_spin_lock+0x80/0xf0
[ 37.698364][ T190] ? __pfx__raw_spin_lock+0x10/0x10
[ 37.703536][ T190] ? __x64_sys_pread64+0x18d/0x1f0
[ 37.708609][ T190] idempotent_init_module+0x21c/0x770
[ 37.713938][ T190] ? __pfx_idempotent_init_module+0x10/0x10
[ 37.719795][ T190] ? fdget+0x54/0x3b0
[ 37.723712][ T190] ? security_capable+0x35/0xf0
[ 37.728512][ T190] __x64_sys_finit_module+0xca/0x170
[ 37.733736][ T190] do_syscall_64+0xdf/0x570
[ 37.738181][ T190] ? _raw_spin_lock+0x80/0xf0
[ 37.742810][ T190] ? kasan_save_track+0x10/0x30
[ 37.747601][ T190] ? __x64_sys_openat+0x104/0x1f0
[ 37.752567][ T190] ? put_unused_fd+0x104/0x1f0
[ 37.757275][ T190] ? __pfx___x64_sys_openat+0x10/0x10
[ 37.762592][ T190] ? do_sys_openat2+0xeb/0x170
[ 37.767312][ T190] ? seccomp_run_filters+0xb5/0x4f0
[ 37.772455][ T190] ? do_syscall_64+0x116/0x570
[ 37.777165][ T190] ? __seccomp_filter+0x22d/0xbf0
[ 37.782131][ T190] ? __x64_sys_openat+0x104/0x1f0
[ 37.787102][ T190] ? __pfx___seccomp_filter+0x10/0x10
[ 37.792422][ T190] ? security_capable+0x35/0xf0
[ 37.797224][ T190] ? do_syscall_64+0x116/0x570
[ 37.801922][ T190] ? do_syscall_64+0x94/0x570
[ 37.806529][ T190] ? irqentry_exit+0x3d/0x530
[ 37.811144][ T190] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 37.816984][ T190] RIP: 0033:0x7ff6e3158779
[ 37.821337][ T190] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4f 86 0d 00 f7 d8 64 89 01 48
[ 37.840933][ T190] RSP: 002b:00007fff7aae0e28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 37.849295][ T190] RAX: ffffffffffffffda RBX: 000055cc60482540 RCX: 00007ff6e3158779
[ 37.857259][ T190] RDX: 0000000000000000 RSI: 00007ff6e195e44d RDI: 000000000000001c
[ 37.865197][ T190] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055cc6043e1e0
[ 37.873157][ T190] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff6e195e44d
[ 37.881096][ T190] R13: 0000000000020000 R14: 000055cc6047ee40 R15: 0000000000000000
[ 37.889023][ T190] </TASK>
[ 37.891991][ T190] ---[ end trace 0000000000000000 ]---
[ 37.897469][ T190] [drm:drm_mode_config_cleanup [drm]] *ERROR* connector VGA-1 leaked!
[ 37.932701][ T520] Btrfs loaded, zoned=yes, fsverity=yes
[ 38.011268][ T190] i915 0000:00:02.0: [drm] *ERROR* Device initialization failed (-22)
[ 38.019369][ T190] i915 0000:00:02.0: probe with driver i915 failed with error -22
[ 38.027343][ T91] ------------[ cut here ]------------
[ 38.032748][ T91] ida_free called for id=0 which is not allocated.
[ 38.039189][ T91] WARNING: lib/idr.c:594 at ida_free+0x161/0x230, CPU#1: kworker/1:1/91
[ 38.047468][ T91] Modules linked in: btrfs libblake2b zstd_compress raid6_pq xor intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp sd_mod snd_hda_codec_alc269 sg kvm_intel snd_hda_codec_realtek_lib snd_hda_scodec_component i915(+) snd_hda_codec_generic kvm dell_wmi snd_hda_intel dell_smbios snd_hda_codec dell_wmi_descriptor intel_gtt irqbypass sparse_keymap drm_buddy snd_hda_core rapl ahci ttm snd_intel_dspcfg intel_cstate rfkill i2c_i801 snd_intel_sdw_acpi libahci drm_display_helper dcdbas mei_wdt snd_hwdep i2c_smbus intel_uncore pcspkr snd_pcm cec mei_me drm_client_lib lpc_ich snd_timer mei libata drm_kms_helper snd video wmi soundcore fuse drm nfnetlink
[ 38.108723][ T91] CPU: 1 UID: 0 PID: 91 Comm: kworker/1:1 Tainted: G S W 7.1.0-rc2+ #1 PREEMPT(lazy)
[ 38.119510][ T91] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN
[ 38.125066][ T91] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[ 38.133066][ T91] Workqueue: events drm_connector_free_work_fn [drm]
[ 38.139866][ T91] RIP: 0010:ida_free+0x163/0x230
[ 38.144741][ T91] Code: 24 28 31 f6 e8 fe 15 08 00 e9 a1 00 00 00 41 83 fe 3e 76 5e 48 8b 7c 24 28 4c 89 ee e8 e6 98 0b 00 48 8d 3d 4f 29 53 02 89 ee <67> 48 0f b9 3a 48 b8 00 00 00 00 00 fc ff df 48 01 c3 c7 03 00 00
[ 38.164311][ T91] RSP: 0018:ffffc9000067fb98 EFLAGS: 00010286
[ 38.170307][ T91] RAX: 0000000000000000 RBX: 1ffff920000cff74 RCX: 1ffff920000cff7b
[ 38.178238][ T91] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff868934c0
[ 38.186154][ T91] RBP: 0000000000000000 R08: 0000000000000001 R09: fffff520000cff67
[ 38.194064][ T91] R10: 0000000000000003 R11: 0000000000000005 R12: 0000000000000000
[ 38.201972][ T91] R13: 0000000000000246 R14: 0000000000000000 R15: ffffc9000067fbc0
[ 38.209890][ T91] FS: 0000000000000000(0000) GS:ffff88842234c000(0000) knlGS:0000000000000000
[ 38.218765][ T91] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 38.225293][ T91] CR2: 00007fb72fb563d8 CR3: 000000040da52001 CR4: 00000000001726f0
[ 38.233206][ T91] Call Trace:
[ 38.236416][ T91] <TASK>
[ 38.239283][ T91] ? __pfx_ida_free+0x10/0x10
[ 38.243915][ T91] ? radix_tree_delete_item+0x90/0x1b0
[ 38.249312][ T91] ? __pfx_radix_tree_delete_item+0x10/0x10
[ 38.255168][ T91] drm_connector_cleanup+0x514/0xdb0 [drm]
[ 38.261104][ T91] intel_connector_destroy+0x4b/0xb0 [i915]
[ 38.267981][ T91] drm_connector_free_work_fn+0xcd/0x130 [drm]
[ 38.274222][ T91] process_one_work+0x6b4/0x1030
[ 38.279109][ T91] ? __pfx_drm_connector_free_work_fn+0x10/0x10 [drm]
[ 38.285980][ T91] ? assign_work+0x131/0x3f0
[ 38.290496][ T91] worker_thread+0x51d/0xdb0
[ 38.295024][ T91] ? __kthread_parkme+0xb1/0x1f0
[ 38.299898][ T91] ? __pfx_worker_thread+0x10/0x10
[ 38.304942][ T91] ? __pfx_worker_thread+0x10/0x10
[ 38.309999][ T91] kthread+0x353/0x470
[ 38.314007][ T91] ? recalc_sigpending+0x159/0x1f0
[ 38.319056][ T91] ? __pfx_kthread+0x10/0x10
[ 38.323578][ T91] ret_from_fork+0x32f/0x670
[ 38.328099][ T91] ? __pfx_ret_from_fork+0x10/0x10
[ 38.333155][ T91] ? switch_fpu+0x15/0x1f0
[ 38.337516][ T91] ? __switch_to+0x508/0xe70
[ 38.342041][ T91] ? __switch_to_asm+0x33/0x70
[ 38.346751][ T91] ? __pfx_kthread+0x10/0x10
[ 38.351274][ T91] ret_from_fork_asm+0x1a/0x30
[ 38.355988][ T91] </TASK>
[ 38.358932][ T91] ---[ end trace 0000000000000000 ]---
[ 38.364377][ T91] ------------[ cut here ]------------
[ 38.369776][ T91] refcount_t: underflow; use-after-free.
[ 38.375568][ T91] WARNING: lib/refcount.c:28 at refcount_warn_saturate+0xa9/0xf0, CPU#1: kworker/1:1/91
[ 38.385356][ T91] Modules linked in: btrfs libblake2b zstd_compress raid6_pq xor intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp sd_mod snd_hda_codec_alc269 sg kvm_intel snd_hda_codec_realtek_lib snd_hda_scodec_component i915(+) snd_hda_codec_generic kvm dell_wmi snd_hda_intel dell_smbios snd_hda_codec dell_wmi_descriptor intel_gtt irqbypass sparse_keymap drm_buddy snd_hda_core rapl ahci ttm snd_intel_dspcfg intel_cstate rfkill i2c_i801 snd_intel_sdw_acpi libahci drm_display_helper dcdbas mei_wdt snd_hwdep i2c_smbus intel_uncore pcspkr snd_pcm cec mei_me drm_client_lib lpc_ich snd_timer mei libata drm_kms_helper snd video wmi soundcore fuse drm nfnetlink
[ 38.446718][ T91] CPU: 1 UID: 0 PID: 91 Comm: kworker/1:1 Tainted: G S W 7.1.0-rc2+ #1 PREEMPT(lazy)
[ 38.457641][ T91] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN
[ 38.463327][ T91] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[ 38.471341][ T91] Workqueue: events drm_connector_free_work_fn [drm]
[ 38.478149][ T91] RIP: 0010:refcount_warn_saturate+0xa9/0xf0
[ 38.484071][ T91] Code: cd a4 e7 03 67 48 0f b9 3a 5b 5d c3 cc cc cc cc 48 8d 3d ca a4 e7 03 67 48 0f b9 3a 5b 5d c3 cc cc cc cc 48 8d 3d c7 a4 e7 03 <67> 48 0f b9 3a 5b 5d c3 cc cc cc cc 48 8d 3d c4 a4 e7 03 67 48 0f
[ 38.503658][ T91] RSP: 0018:ffffc9000067fc30 EFLAGS: 00010246
[ 38.509667][ T91] RAX: 0000000000000003 RBX: ffff88815b67a050 RCX: ffffffff82a08aa1
[ 38.517584][ T91] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff86883000
[ 38.525488][ T91] RBP: 0000000000000003 R08: 0000000000000001 R09: ffffed102b6cf40a
[ 38.533393][ T91] R10: ffff88815b67a053 R11: 0000000000000005 R12: ffff888116810000
[ 38.541298][ T91] R13: ffff88815b67a028 R14: ffff888116810220 R15: ffff88810d8b2800
[ 38.549204][ T91] FS: 0000000000000000(0000) GS:ffff88842234c000(0000) knlGS:0000000000000000
[ 38.558075][ T91] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 38.564597][ T91] CR2: 00007fb72fb563d8 CR3: 000000040da52001 CR4: 00000000001726f0
[ 38.572532][ T91] Call Trace:
[ 38.575746][ T91] <TASK>
[ 38.578607][ T91] __drm_atomic_helper_connector_destroy_state+0x59/0x170 [drm_kms_helper]
[ 38.587210][ T91] drm_atomic_helper_connector_destroy_state+0x11/0x30 [drm_kms_helper]
[ 38.595555][ T91] drm_connector_cleanup+0x86d/0xdb0 [drm]
[ 38.601480][ T91] intel_connector_destroy+0x4b/0xb0 [i915]
[ 38.608401][ T91] drm_connector_free_work_fn+0xcd/0x130 [drm]
[ 38.614668][ T91] process_one_work+0x6b4/0x1030
[ 38.619544][ T91] ? __pfx_drm_connector_free_work_fn+0x10/0x10 [drm]
[ 38.626419][ T91] ? assign_work+0x131/0x3f0
[ 38.630952][ T91] worker_thread+0x51d/0xdb0
[ 38.635491][ T91] ? __kthread_parkme+0xb1/0x1f0
[ 38.640369][ T91] ? __pfx_worker_thread+0x10/0x10
[ 38.645413][ T91] ? __pfx_worker_thread+0x10/0x10
[ 38.650453][ T91] kthread+0x353/0x470
[ 38.654447][ T91] ? recalc_sigpending+0x159/0x1f0
[ 38.659490][ T91] ? __pfx_kthread+0x10/0x10
[ 38.664011][ T91] ret_from_fork+0x32f/0x670
[ 38.668541][ T91] ? __pfx_ret_from_fork+0x10/0x10
[ 38.673590][ T91] ? switch_fpu+0x15/0x1f0
[ 38.677940][ T91] ? __switch_to+0x508/0xe70
[ 38.682462][ T91] ? __switch_to_asm+0x33/0x70
[ 38.687168][ T91] ? __pfx_kthread+0x10/0x10
[ 38.691689][ T91] ret_from_fork_asm+0x1a/0x30
[ 38.696395][ T91] </TASK>
[ 38.699344][ T91] ---[ end trace 0000000000000000 ]---
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki