apport information
** Tags added: apport-collected
** Description changed:
I disabled the autogroup scheduler on precise. I added a line to my
rc.local to disable it on boot as follows:
echo 0 > /proc/sys/kernel/sched_autogroup_enabled
In linux-image-3.2.0-29, linux-image-3.2.0-30, and linux-image-3.2.0-31
this causes a kernel panic during the reboot or halt sequence.
I have been unable to store logs of the output but I always see a unable
to dereference null pointer. The function reported in the stack trace
tends to be update_cfs_shares, update_cfs_load and reweight_entity.
Here are some other details about my Ubuntu version:
lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-29-generic (not installed)
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: addo 2869 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfbbd8000 irq 58'
Mixer name : 'Realtek ALC888'
Components : 'HDA:10ec0888,15d9f380,00100202'
Controls : 43
Simple ctrls : 20
CurrentDmesg:
Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg
-'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
dmesg: write failed: Broken pipe
Date: Mon Sep 24 10:30:50 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MachineType: Supermicro X8SAX
ProcEnviron:
SHELL=/bin/bash
TERM=xterm
PATH=(custom, user)
LANG=en_AU.UTF-8
LANGUAGE=en_AU:en
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-27-generic
root=UUID=fdd5524c-2bb2-4cce-8fbf-886c004c8640 ro
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 09/17/10
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: 2.0
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:bd09/17/10:svnSupermicro:pnX8SAX:pvr1234567890:rvnSupermicro:rnX8SAX:rvr2.0:cvnSupermicro:ct3:cvr1234567890:
dmi.product.name: X8SAX
dmi.product.version: 1234567890
dmi.sys.vendor: Supermicro
+ ---
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
+ ApportVersion: 2.0.1-0ubuntu13
+ Architecture: amd64
+ AudioDevicesInUse:
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: dfbiadmin 2730 F.... pulseaudio
+ CRDA: Error: [Errno 2] No such file or directory
+ Card0.Amixer.info:
+ Card hw:0 'Intel'/'HDA Intel at 0xf7fd8000 irq 58'
+ Mixer name : 'Realtek ALC883'
+ Components : 'HDA:10ec0883,15d9f380,00100002'
+ Controls : 43
+ Simple ctrls : 20
+ DistroRelease: Ubuntu 12.04
+ HibernationDevice: RESUME=UUID=f7078ca7-88d8-4e7b-bfa9-f30ffabfc04c
+ InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
+ IwConfig:
+ lo no wireless extensions.
+
+ eth1 no wireless extensions.
+
+ eth0 no wireless extensions.
+ MachineType: Supermicro X8SAX
+ NonfreeKernelModules: nvidia
+ Package: linux (not installed)
+ ProcEnviron:
+ TERM=xterm
+ SHELL=/bin/bash
+ PATH=(custom, no user)
+ LANG=en_AU.UTF-8
+ LANGUAGE=en_AU:en
+ ProcFB:
+
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic
root=UUID=7394fe9b-d364-4e4d-8eb1-3bad6fcf7f49 ro
+ ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
+ PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
+ RelatedPackageVersions:
+ linux-restricted-modules-3.2.0-29-generic N/A
+ linux-backports-modules-3.2.0-29-generic N/A
+ linux-firmware 1.79.1
+ RfKill:
+
+ Tags: precise
+ Uname: Linux 3.2.0-29-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups:
+
+ dmi.bios.date: 11/26/2008
+ dmi.bios.vendor: American Megatrends Inc.
+ dmi.bios.version: 1.0a
+ 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.:bvr1.0a:bd11/26/2008:svnSupermicro:pnX8SAX:pvr1234567890:rvnSupermicro:rnX8SAX:rvr1234567890:cvnSupermicro:ct3:cvr1234567890:
+ dmi.product.name: X8SAX
+ dmi.product.version: 1234567890
+ dmi.sys.vendor: Supermicro
** Attachment added: "AcpiTables.txt"
https://bugs.launchpad.net/bugs/1055222/+attachment/3336584/+files/AcpiTables.txt
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https://bugs.launchpad.net/bugs/1055222
Title:
Kernel panic on reboot after sched_autogroup_enabled disabled
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