Public bug reported:
This is the second time I see this bug.
It calls the unmap and gets one of the CPU stuck (soft lock).
>From what I read in different places, this could be because of a memory
error (actual RAM or a software error,) or an invalid setup where the
unmap is used to unmap memory that does not exist.
The former seems strange because my system may run for a long time
before hitting the problem. It may run less than 1 day and hit the
problem... so it varies quite a bit.
Today, Jan 29, 2011, it locked up all the CPUs except CPU #1 which could
not access the hard drive but could still handle the local network (I
still had Internet access from the other computers! but no SSH, no
keyboard, no mouse, no video. It was in a console, no X11.)
As you will see in the following, I've got quite a few hits today. They
look very similar to the ones I had last time.
uname -a
Linux halk 2.6.32-28-server #55-Ubuntu SMP Mon Jan 10 23:57:16 UTC 2011 x86_64
GNU/Linux
It's up to date as of 2 or 3 days ago. I just upgraded to this new
kernel from 2.6.32-27. 4 processors (i5) and running Ubuntu 10.04 in
64bit. And as you may guess from the syslog info, I have a software
raid.
After the syslog, I added some cat of a few /proc files.
Thank you.
Alexis Wilke
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-28-server 2.6.32-28.55 [modified:
lib/modules/2.6.32-28-server/kernel/drivers/net/usb/asix.ko]
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-server x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alexis 2967 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfbff8000 irq 22'
Mixer name : 'Realtek ALC889'
Components : 'HDA:10ec0889,1458a022,00100004'
Controls : 40
Simple ctrls : 22
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xfaffc000 irq 16'
Mixer name : 'Nvidia ID a'
Components : 'HDA:10de000a,10de0101,00100100'
Controls : 0
Simple ctrls : 0
Card1.Amixer.values:
Date: Sat Jan 29 14:41:27 2011
Frequency: Once every few months.
HibernationDevice: RESUME=UUID=4be93050-8c7c-4975-8729-7af473de4847
InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64
(20100816.2)
MachineType: Gigabyte Technology Co., Ltd. P55A-UD4P
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server
root=UUID=44c21f29-49da-438c-ad4a-cd8df6fb720e ro quiet text
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_US.UTF-8
RelatedPackageVersions: linux-firmware 1.34.3
RfKill:
SourcePackage: linux
dmi.bios.date: 12/03/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F6
dmi.board.name: P55A-UD4P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias:
dmi:bvnAwardSoftwareInternational,Inc.:bvrF6:bd12/03/2009:svnGigabyteTechnologyCo.,Ltd.:pnP55A-UD4P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP55A-UD4P:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P55A-UD4P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid needs-upstream-testing
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Title:
BUG: Bad page map in process postgres pte:80000000cef2d067
pmd:3ac58067
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