kernel oops related to the new HDA audio handling for DP MST

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Hi

Recently I've encountered this error and as Hans de Goede's request I'm
reporting this back to you. This happens while booting my laptop
connected to docking station and without using one.

kernel: WARNING: CPU: 1 PID: 330 at sound/hda/hdac_component.c:290 snd_hdac_acomp_init+0xde/0x130 [snd_hda_core]
There are 2 more "cut here", but they're almost identical so I've only
included one in this email.

Don't know what will be valuable to you, but I'm willing to help test
this and do what I'm told. So, how can I help?

More info about this particular kernel and issue, that led to this is at:
https://bugzilla.redhat.com/show_bug.cgi?id=1757891

dmesg output:

Nov 26 18:05:45 kernel: microcode: microcode updated early to revision 0x2f, date = 2019-02-17
Nov 26 18:05:45 kernel: Linux version 5.4.0-0.rc8.git0.1.rhbz1757891.fc31.x86_64 (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 9.2.1 20190827 (Red Hat 9.2.1-1) (GCC)) #1 SMP Wed Nov 20 14:50:34 UTC 2019
Nov 26 18:05:45 kernel: Command line: BOOT_IMAGE=(hd0,gpt2)/vmlinuz-5.4.0-0.rc8.git0.1.rhbz1757891.fc31.x86_64 root=/dev/mapper/fedora-root ro resume=/dev/mapper/fedora-swap rd.lvm.lv=fedora/root rd.luks.uuid=luks-efd8b438-8f56-405a-8cea-88f83ca38d2b rd.lvm.lv=fedora/swap rhgb quiet
...
...
...
Nov 26 18:06:16 kernel: ------------[ cut here ]------------
Nov 26 18:06:16 kernel: WARNING: CPU: 0 PID: 461 at sound/hda/hdac_component.c:290 snd_hdac_acomp_init+0xde/0x130 [snd_hda_core]
Nov 26 18:06:16 kernel: Modules linked in: intel_rapl_msr intel_rapl_common iwldvm x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi coretemp mac80211 snd_hda_codec_conexant snd_hda_codec_generic kvm_intel snd_hda_intel libarc4 snd_intel_nhlt kvm mei_wdt iTCO_wdt snd_hda_codec mei_hdcp iwlwifi irqbypass iTCO_vendor_support snd_hda_core intel_cstate snd_hwdep snd_seq intel_uncore snd_seq_device thinkpad_acpi joydev i2c_i801 wmi_bmof intel_rapl_perf snd_pcm pcspkr ledtrig_audio cfg80211 snd_timer mei_me snd mei soundcore lpc_ich rfkill binfmt_misc ip_tables dm_crypt i915 nouveau crct10dif_pclmul crc32_pclmul mxm_wmi crc32c_intel ttm i2c_algo_bit drm_kms_helper ghash_clmulni_intel sdhci_pci cqhci drm sdhci serio_raw e1000e firewire_ohci mmc_core firewire_core crc_itu_t wmi video fuse
Nov 26 18:06:16 kernel: CPU: 0 PID: 461 Comm: kworker/0:2 Tainted: G        W         5.4.0-0.rc8.git0.1.rhbz1757891.fc31.x86_64 #1
Nov 26 18:06:16 kernel: Hardware name: LENOVO 42844DG/42844DG, BIOS 8BET66WW (1.46 ) 06/14/2018
Nov 26 18:06:16 kernel: Workqueue: events azx_probe_work [snd_hda_intel]
Nov 26 18:06:16 kernel: RIP: 0010:snd_hdac_acomp_init+0xde/0x130 [snd_hda_core]
Nov 26 18:06:16 kernel: Code: 41 89 c4 85 c0 78 3a 45 31 e4 48 8b 44 24 08 65 48 33 04 25 28 00 00 00 75 22 48 83 c4 10 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 <0f> 0b 41 bc f0 ff ff ff eb d6 41 bc f4 ff ff ff eb ce e8 6b 7c 5f
Nov 26 18:06:16 kernel: RSP: 0018:ffffa5e4002a3c28 EFLAGS: 00010286
Nov 26 18:06:16 kernel: RAX: ffff984ae816a7e8 RBX: ffff984aebf91000 RCX: ffff984aeb50c338
Nov 26 18:06:16 kernel: RDX: 0000000000000001 RSI: 0000000000000282 RDI: 0000000000000282
Nov 26 18:06:16 kernel: RBP: ffff984ae53e4df0 R08: 0000000000000282 R09: ffff984aebe4e738
Nov 26 18:06:16 kernel: R10: ffff984ae778a180 R11: ffffa5e4002a3c0f R12: ffffffffc0c270c0
Nov 26 18:06:16 kernel: R13: ffff984aeb50c0b0 R14: 0000000000000000 R15: 0000000000000001
Nov 26 18:06:16 kernel: FS:  0000000000000000(0000) GS:ffff984aee000000(0000) knlGS:0000000000000000
Nov 26 18:06:16 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 26 18:06:16 kernel: CR2: 00007f3a343e8000 CR3: 000000035360a006 CR4: 00000000000606f0
Nov 26 18:06:16 kernel: Call Trace:
Nov 26 18:06:16 kernel:  generic_acomp_init+0x71/0x90 [snd_hda_codec_hdmi]
Nov 26 18:06:16 kernel:  patch_nvhdmi+0x58/0x60 [snd_hda_codec_hdmi]
Nov 26 18:06:16 kernel:  hda_codec_driver_probe+0x92/0x150 [snd_hda_codec]
Nov 26 18:06:16 kernel:  really_probe+0x298/0x3c0
Nov 26 18:06:16 kernel:  driver_probe_device+0xb6/0x100
Nov 26 18:06:16 kernel:  ? driver_allows_async_probing+0x50/0x50
Nov 26 18:06:16 kernel:  bus_for_each_drv+0x7e/0xc0
Nov 26 18:06:16 kernel:  __device_attach+0xdf/0x160
Nov 26 18:06:16 kernel:  bus_probe_device+0x8e/0xa0
Nov 26 18:06:16 kernel:  device_add+0x3a2/0x670
Nov 26 18:06:16 kernel:  snd_hdac_device_register+0x12/0x60 [snd_hda_core]
Nov 26 18:06:16 kernel:  snd_hda_codec_configure+0x45/0x150 [snd_hda_codec]
Nov 26 18:06:16 kernel:  azx_codec_configure+0x2f/0x60 [snd_hda_codec]
Nov 26 18:06:16 kernel:  azx_probe_continue+0x48c/0x700 [snd_hda_intel]
Nov 26 18:06:16 kernel:  process_one_work+0x1b0/0x350
Nov 26 18:06:16 kernel:  worker_thread+0x50/0x3b0
Nov 26 18:06:16 kernel:  kthread+0xfb/0x130
Nov 26 18:06:16 kernel:  ? process_one_work+0x350/0x350
Nov 26 18:06:16 kernel:  ? kthread_park+0x90/0x90
Nov 26 18:06:16 kernel:  ret_from_fork+0x35/0x40
Nov 26 18:06:16 kernel: ---[ end trace 3c8d65bedba62849 ]---
Nov 26 18:06:16 kernel: input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15
Nov 26 18:06:16 kernel: input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input16
Nov 26 18:06:16 kernel: input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17
Nov 26 18:06:16 kernel: input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18



--
Regards,
Michał Matysiak
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