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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: artful
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https://bugs.launchpad.net/bugs/1730261
Title:
Reading HDA audio capability register crashes the kernel
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
The intel audio device [8086:a348] can not be driven.
I got below error message.
[ 14.154439] snd_hda_core: loading out-of-tree module taints kernel.
[ 14.154474] snd_hda_core: module verification failed: signature and/or
required key missing - tainting kernel
[ 14.170181] snd_hda_intel 0000:00:1f.3: Probing card using HDA DKMS, version
0.201710050116~ubuntu17.10.1
[ 14.170192] snd_hda_intel 0000:00:1f.3: enabling device (0100 -> 0102)
[ 14.170344] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915])
[ 14.170359] sdhci-pci 0000:00:14.5: SDHCI controller found [8086:a375] (rev
1)
[ 14.192693] BUG: unable to handle kernel paging request at ffffa73f43d8ffff
[ 14.192697] IP: pci_azx_readl+0x9/0x10 [snd_hda_intel]
[ 14.192698] PGD 80ad3a067
[ 14.192698] P4D 80ad3a067
[ 14.192698] PUD 80ad3b067
[ 14.192699] PMD 7fe2ef067
[ 14.192699] PTE 0
[ 14.192701] Oops: 0000 [#1] SMP
[ 14.192702] Modules linked in: snd_hda_intel(OE) snd_hda_codec(OE)
snd_hda_core(OE) kvm irqbypass snd_hwdep btusb btrtl btbcm btintel snd_pcm
bluetooth ecdh_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc
snd_seq_midi snd_seq_midi_event aesni_intel snd_rawmidi rtsx_pci_ms memstick
ucsi_acpi snd_seq snd_seq_device snd_timer wmi_bmof dell_wmi_aio aes_x86_64
crypto_simd glue_helper cryptd dell_wmi dell_smbios dcdbas snd intel_cstate
typec_ucsi sparse_keymap shpchp intel_rapl_perf soundcore typec tpm_crb mac_hid
acpi_als kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport autofs4
btrfs xor raid6_pq dm_mirror dm_region_hash dm_log hid_generic usbhid
rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect
sysimgblt e1000e fb_sys_fops ptp drm pps_core ahci sdhci_pci
[ 14.192719] rtsx_pci libahci sdhci wmi i2c_hid hid video
[ 14.192722] CPU: 6 PID: 96 Comm: kworker/6:1 Tainted: G OE 4.13.0-1005-oem
#6-Ubuntu
[ 14.192723] Hardware name: Dell Inc. OptiPlex 7450 AIO/03CDJK, BIOS 96.0.2
08/08/2017
[ 14.192725] Workqueue: events azx_probe_work [snd_hda_intel]
[ 14.192726] task: ffff8abb068697c0 task.stack: ffffa73f43510000
[ 14.192727] RIP: 0010:pci_azx_readl+0x9/0x10 [snd_hda_intel]
[ 14.192728] RSP: 0018:ffffa73f43513db0 EFLAGS: 00010286
[ 14.192729] RAX: ffffffffc07fddc0 RBX: 0000000000000fff RCX: 00000000000e1233
[ 14.192729] RDX: 0000000000000100 RSI: 0000000000000100 RDI: ffffa73f43d8ffff
[ 14.192730] RBP: ffffa73f43513db0 R08: ffffc73f3fffffff R09: ffff8abb0ac03601
[ 14.192730] R10: 000000000ac03601 R11: 0000000000004001 R12: 000000000000ffff
[ 14.192731] R13: 000000000000ffff R14: ffff8abb030db000 R15: 00000000ffffffff
[ 14.192732] FS: 0000000000000000(0000) GS:ffff8abb0b380000(0000)
knlGS:0000000000000000
[ 14.192733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 14.192733] CR2: ffffa73f43d8ffff CR3: 00000001dea09000 CR4: 00000000003406e0
[ 14.192734] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 14.192735] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 14.192735] Call Trace:
[ 14.192738] snd_hdac_bus_parse_capabilities+0x44/0x1f0 [snd_hda_core]
[ 14.192740] azx_probe_continue+0x75e/0xa30 [snd_hda_intel]
[ 14.192742] azx_probe_work+0x15/0x20 [snd_hda_intel]
[ 14.192744] process_one_work+0x156/0x410
[ 14.192745] worker_thread+0x4b/0x410
[ 14.192746] kthread+0x109/0x140
[ 14.192747] ? process_one_work+0x410/0x410
[ 14.192748] ? kthread_create_on_node+0x70/0x70
[ 14.192750] ret_from_fork+0x25/0x30
[ 14.192751] Code: 88 00 05 00 00 04 31 c0 5d c3 0f 1f 84 00 00 00 00 00 0f
1f 44 00 00 55 48 89 e5 89 3e 5d c3 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 <8b> 07
5d c3 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 66 89 3e 5d c3
[ 14.192766] RIP: pci_azx_readl+0x9/0x10 [snd_hda_intel] RSP: ffffa73f43513db0
[ 14.192766] CR2: ffffa73f43d8ffff
[ 14.192767] ---[ end trace 7bab59b956c17279 ]---
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