system unresponsive during disk access

[alepac]

The system become unresponsive during disk access. I'm using Ubuntu 14.04 on a ThinkPad lenovo E540.

The steps I use to reproduce this bug is:
 - install `stress` package
 - stress the disk (# stress -d 2 --timeout 20s)
 - during the stress test the system hangs while accessing disk from another process (even ls hangs waiting the stress timeout)

The problem persist with the upstream kernel 3.19.0-031900rc6-generic

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-44-generic 3.13.0-44.73
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alepac 2907 F.... pulseaudio
 /dev/snd/controlC1: alepac 2907 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Jan 28 09:52:50 2015
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=18d574ae-5963-4128-ac7d-93e85043999e
InstallationDate: Installed on 2014-08-25 (155 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: LENOVO 20C6003QIX
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic root=UUID=abc61567-9159-409e-becf-f1db0b9bfd8d ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-44-generic N/A
 linux-backports-modules-3.13.0-44-generic N/A
 linux-firmware 1.127.11
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
 Jan 28 08:44:21 alepac-lenovo kernel: [ 847.480724] warning: `VirtualBox' uses 32-bit capabilities (legacy support in use)
 Jan 28 09:53:06 alepac-lenovo kernel: [ 4975.967152] nouveau E[ PIBUS][0000:01:00.0] GPC0: 0x4188ac 0x00000001 (0x1e70822e)
dmi.bios.date: 07/31/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: J9ET92WW (2.12 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20C6003QIX
dmi.board.vendor: LENOVO
dmi.board.version: 0B98401 PRO
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrJ9ET92WW(2.12):bd07/31/2014:svnLENOVO:pn20C6003QIX:pvrThinkPadEdgeE540:rvnLENOVO:rn20C6003QIX:rvr0B98401PRO:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20C6003QIX
dmi.product.version: ThinkPad Edge E540
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[alepac (alessandro-pacifici)]

The bug seems related to AHCI.

I found a WORKAROUND disabling AHCI from BIOS.

[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 v3.19 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'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v3.19-rc6-vivid/

[Launchpad Janitor (janitor)]

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