3.15.0-1.3 kernel, null pointer dereference

[Dimitri John Ledkov]

I'm running utopic, kernel from proposed and that consistently fails as shown in the picture (null pointer derefence).

I'm using UEFI, booted with systemd, with a damaged / not-clean filesystem (dirty bits sets and recovery required). 3.13 kernels boot fine.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.15.0-1-generic 3.15.0-1.3
ProcVersionSignature: Ubuntu 3.13.0-26.48-generic 3.13.11
Uname: Linux 3.13.0-26-generic x86_64
ApportVersion: 2.14.2-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: xnox 1770 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat May 17 12:39:21 2014
HibernationDevice: RESUME=UUID=eee95b80-dde2-400c-bb49-e5f515c9242a
InstallationDate: Installed on 2013-08-29 (260 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130829)
MachineType: LENOVO 2191
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-26-generic.efi.signed root=UUID=5c176060-d588-4044-87b6-50b785b931b1 ro quiet splash init=/lib/systemd/systemd nomdmonddf nomdmonisw vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-26-generic N/A
 linux-backports-modules-3.13.0-26-generic N/A
 linux-firmware 1.129
SourcePackage: linux
StagingDrivers: rts5139 r8723au
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:

dmi.bios.date: 01/21/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 66CN54WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Yoga 13
dmi.modalias: dmi:bvnLENOVO:bvr66CN54WW:bd01/21/2013:svnLENOVO:pn2191:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13:
dmi.product.name: 2191
dmi.product.version: Lenovo IdeaPad Yoga 13
dmi.sys.vendor: LENOVO

[Dimitri John Ledkov (xnox)]

https://launchpadlibrarian.net/175780082/2014-05-17.jpg <---- kernel crash picture (first attachment in above pile)

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.15 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/v3.15-rc5-utopic/

[Joseph Salisbury (jsalisbury)]

If the latest mainline kernel still has the bug, we can perform a bisect to identify the commit that introduced this regression.

[Launchpad Janitor (janitor)]

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