After upgrade to 13.04, snd_hda_codec_hdmi module causes system crash

[Toby Corkindale]

I was running ubuntu 12.10 successfully, but upgraded a couple of days ago to 13.04.
Immediately after upgrading, and on subsequent attempts to boot, the system would hard freeze during boot-up.

Debugging led me to observe kernel segfaults occurring, caused by the snd_hda_codec_hdmi kernel module.
I blacklisted this module in /etc/modprobe.d and then my system boots and works fine.

This seems to be a regression from the old 3.5.0-27-generic kernel to the current 3.8.0-19-generic kernel in 13.04, and is quite significant. (People without decent skills would not have been able to get the system to boot at all after an upgrade)

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-19-generic 3.8.0-19.30
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: tobyc 2352 F.... pulseaudio
 /dev/snd/controlC0: tobyc 2352 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Date: Fri May 3 11:43:01 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=67a5852e-05a1-4ac5-b4be-82071df376bf
InstallationDate: Installed on 2011-02-04 (818 days ago)
InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Supermicro X8SAX
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-19-generic root=/dev/mapper/vg_raid-root ro
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-19-generic N/A
 linux-backports-modules-3.8.0-19-generic N/A
 linux-firmware 1.106
RfKill:

SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-04-30 (2 days ago)
dmi.bios.date: 09/08/10
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2.0
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: X8SAX
dmi.board.vendor: Supermicro
dmi.board.version: 1234567890
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 1234567890
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0:bd09/08/10:svnSupermicro:pnX8SAX:pvr1234567890:rvnSupermicro:rnX8SAX:rvr1234567890:cvnSupermicro:ct3:cvr1234567890:
dmi.product.name: X8SAX
dmi.product.version: 1234567890
dmi.sys.vendor: Supermicro

[Brad Figg (brad-figg)]

This change was made by a bot.

[Toby Corkindale (tjc-wintrmute)]

See attached for kernel messages around the actual segfault.
Key lines are:
[ 13.279050] BUG: unable to handle kernel paging request at ffff8801ee247fe0
[ 13.279142] IP: [<ffffffffa0440820>] patch_generic_hdmi+0xe0/0x550 [snd_hda_codec_hdmi]
[ 13.279195] PGD 1c0e063 PUD 7f78e067 PMD 1f4093063 PTE 80000001ee247161

...

[ 13.280599] Call Trace:
[ 13.280623] [<ffffffffa0440004>] ? hdmi_setup_audio_infoframe.isra.14+0x114/0x400 [snd_hda_codec_hdmi]
[ 13.280677] [<ffffffffa0361186>] snd_hda_codec_configure+0x146/0x440 [snd_hda_codec]
[ 13.280727] [<ffffffffa03852f0>] azx_probe_continue+0x3a0/0x4f0 [snd_hda_intel]
[ 13.280774] [<ffffffffa03838b0>] ? azx_attach_pcm_stream+0x1e0/0x1e0 [snd_hda_intel]
[ 13.280822] [<ffffffffa0384cb0>] ? azx_halt+0x30/0x30 [snd_hda_intel]
[ 13.280854] [<ffffffffa03836d0>] ? azx_pcm_trigger+0x580/0x580 [snd_hda_intel]
[ 13.280901] [<ffffffffa0384810>] ? azx_runtime_suspend+0x30/0x30 [snd_hda_intel]
[ 13.280948] [<ffffffffa0381670>] ? azx_pcm_free+0x50/0x50 [snd_hda_intel]
[ 13.280980] [<ffffffffa038579a>] azx_probe+0x35a/0x940 [snd_hda_intel]

...