blk_update_request: I/O error

[Bingchen Gong]

This bug report is for https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1526537

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-34-generic 4.4.0-34.53
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Wed Aug 17 02:53:33 2016
InstallationDate: Installed on 2016-07-24 (23 days ago)
InstallationMedia: Ubuntu 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: FOUNDERTECH Founder PC
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic root=UUID=D480554280552BEC loop=/ubuntu/disks/root.disk ro rootflags=sync,big_writes zswap.enabled=1 quiet splash text
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-34-generic N/A
 linux-backports-modules-4.4.0-34-generic N/A
 linux-firmware 1.157.3
RfKill:

SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-08-16 (0 days ago)
dmi.bios.date: 09/14/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: G31MX-K
dmi.board.vendor: Foxconn
dmi.board.version: 1.1
dmi.chassis.type: 3
dmi.chassis.vendor: FOUNDERTECH
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd09/14/2007:svnFOUNDERTECH:pnFounderPC:pvr:rvnFoxconn:rnG31MX-K:rvr1.1:cvnFOUNDERTECH:ct3:cvr:
dmi.product.name: Founder PC
dmi.sys.vendor: FOUNDERTECH

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc2/

[Bingchen Gong (r-register)]

I installed the kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc2/.

After boot up, I checked the dmesg, the bug still exist:

[ 57.969476] r8169 0000:03:00.0 eth0: link down
[ 72.412981] r8169 0000:03:00.0 eth0: link up
[ 72.582952] blk_update_request: I/O error, dev loop0, sector 17281048
[ 74.007250] blk_update_request: I/O error, dev loop0, sector 25919552
[ 84.202998] blk_update_request: I/O error, dev loop0, sector 25915528
wenri:~/ $ uname -a
Linux zen.station 4.8.0-040800rc2-generic #201608142332 SMP Mon Aug 15 03:34:01 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[penalvch (penalvch)]

Bingchen Gong, to keep this relevant to upstream, one would want to test the latest mainline kernel (now 4.8-rc4) as it is released.

Could you please advise?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]