Ubuntu
linux package

Corrupted low memory at ffff880000009938 (9938 phys) = 00000040

Bug #706818 reported by Seth Arnold on 2011-01-24

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Expired	Undecided	Unassigned

Bug Description

Jan 12 19:34:57 haig kernel: [ 1621.266557] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 12 23:49:11 haig kernel: [11933.879136] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 19 16:28:16 haig kernel: [27583.088591] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 20 15:53:26 haig kernel: [35017.765263] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 20 23:17:38 haig kernel: [47549.130554] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 22 17:35:12 haig kernel: [19724.673040] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 23 12:48:02 haig kernel: [24640.224001] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 23 13:28:09 haig kernel: [25119.789748] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040
Jan 23 18:34:29 haig kernel: [25599.340484] Corrupted low memory at ffff880000009938 (9938 phys) = 00000040

I don't recall ever seeing this with 10.04 or earlier releases.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-24-generic 2.6.35-24.42
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: sarnold 1873 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfbff8000 irq 51'
   Mixer name : 'Realtek ALC889A'
   Components : 'HDA:10ec0885,1458a002,00100101'
   Controls : 38
   Simple ctrls : 21
Card1.Amixer.info:
Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfbafc000 irq 53'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100100'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Mon Jan 24 00:06:11 2011
Frequency: Once a day.
HibernationDevice: RESUME=UUID=067191f4-32c8-498c-b1dd-309eab6eb533
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Gigabyte Technology Co., Ltd. EX58-UD5
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-24-generic root=UUID=e1ee5eae-7d96-43d2-aafc-72245e3e8956 ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:

SourcePackage: linux
dmi.bios.date: 05/11/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F7
dmi.board.name: EX58-UD5
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd05/11/2009:svnGigabyteTechnologyCo.,Ltd.:pnEX58-UD5:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEX58-UD5:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EX58-UD5
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

Tags:

Revision history for this message

Seth Arnold (seth-arnold) wrote on 2011-01-24:

AcpiTables.txt Edit (150.7 KiB, text/plain; charset="utf-8")
AlsaDevices.txt Edit (763 bytes, text/plain; charset="utf-8")
AplayDevices.txt Edit (383 bytes, text/plain; charset="utf-8")
ArecordDevices.txt Edit (421 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (62.6 KiB, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (4.1 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.2.txt Edit (14.1 KiB, text/plain; charset="utf-8")
Card1.Codecs.codec.0.txt Edit (1.0 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (91.4 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.9 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (138 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (31.6 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (786 bytes, text/plain; charset="utf-8")
PciMultimedia.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (6.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (3.4 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (3.4 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (120.5 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (271.0 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (95.6 KiB, text/plain; charset="utf-8")

Revision history for this message

Seth Arnold (seth-arnold) wrote on 2011-01-24:

dmidecode Edit (11.3 KiB, text/plain)

Jeremy Foshee asked for dmidecode data from another user reporting similar problem in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/324894

Revision history for this message

Seth Arnold (seth-arnold) wrote on 2011-02-18:

I don't see the corrupted memory in an upstream kernel:

# uname -a ; uptime ; dmesg | grep -i corrupt
Linux haig 2.6.38-020638rc4-generic #201102081010 SMP Tue Feb 8 10:12:40 UTC 2011 x86_64 GNU/Linux
18:46:39 up 4 days, 4:02, 3 users, load average: 0.08, 0.05, 0.07
[ 0.000000] Scanning 0 areas for low memory corruption
[ 1.898354] Scanning for low memory corruption every 60 seconds
#

tags:

removed: needs-upstream-testing

Brad Figg (brad-figg) on 2011-04-07

Changed in linux (Ubuntu):
status:	New → Confirmed

Jeremy Foshee (jeremyfoshee) on 2011-05-24

tags:

removed: regression-potential

Revision history for this message

penalvch (penalvch) wrote on 2012-04-04:

Seth Arnold, thank you for reporting this bug to Ubuntu. Maverick reached EOL on 2012.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue in a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

tags:	added: needs-upstream-testing regression-release
Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-06-04:

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

Changed in linux (Ubuntu):
status:	Incomplete → Expired

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Corrupted low memory at ffff880000009938 (9938 phys) = 00000040

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