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/[email protected]/
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 <[email protected]>
| Closes: https://lore.kernel.org/oe-lkp/[email protected]



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260526/[email protected]


[   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

Reply via email to