13.04 - kernel panic - unable to handle kernel paging request ffffffec -- Dell Inspiron 9300

[Charles Ford]

The same kernel panic that I had before (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1164788)

This is a new daily build though, so I'm reporting a new bug.

I'm thinking it's a fan issue - overheating, though not while on AC power. If I unplug it and let it sit on carpet, the fans won't go high, but it's quite likely that it'll throw this kernel panic out.

I'll get the upstream kernel installed in a moment and see if it duplicates.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-16-generic 3.8.0-16.26
ProcVersionSignature: Ubuntu 3.8.0-16.26-generic 3.8.5
Uname: Linux 3.8.0-16-generic i686
ApportVersion: 2.9.2-0ubuntu5
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: charlie 1916 F.... pulseaudio
Date: Mon Apr 8 00:16:38 2013
HibernationDevice: RESUME=UUID=599d7013-d880-4cc3-b394-94bdde46dde7
InstallationDate: Installed on 2013-04-06 (1 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130402.1)
MachineType: Dell Inc. Inspiron 9300
MarkForUpload: True
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-16-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-16-generic N/A
 linux-backports-modules-3.8.0-16-generic N/A
 linux-firmware 1.104
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/23/2005
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 0C5668
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd02/23/2005:svnDellInc.:pnInspiron9300:pvr:rvnDellInc.:rn0C5668:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 9300
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Sometimes putting a system on a carpet or other soft surface will block the ventilation openings. That could cause the system to overheat and panic.

Can you attach your /var/log/syslog file to the bug. I can then review it to see if there is an overheating issue.

Thanks in advance.

[Charles Ford (charlesford42)]

Yep, it could - it just hadn't done that with 12.10 so it made me think something was up.

btw this is the same: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1158069 - I didn't know it was a kernel panic at the time I reported it.

[Charles Ford (charlesford42)]

Okay, just had a new kernel panic with the upstream. It doesn't have the BUG: prefix, I think it's much longer than the other one I transcribed.

it does say [21492:955654] WARNING: at /home/apw/COD/linux/drivers/gpu/drm/drm_crtc.c:84 drm_warn_on_modeset_not_all_locked+0x62/0x70 [drm]()

I'm gonna hop on IRC to see what's most useful to transcribe from the kernel panic, because it's quite a task.

[Joseph Salisbury (jsalisbury)]

Do you have a digital camera or mobile phone with a camera? If so, you could take a photo of the panic and attach it to the bug.

[Charles Ford (charlesford42)]

Happened again, right after plugging the laptop back in after the power cord fell out.

[Launchpad Janitor (janitor)]

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