| 2013-01-12 20:16:01 |
Paul Szabo |
bug |
|
|
added bug |
| 2013-01-12 20:30:09 |
Brad Figg |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2013-01-12 20:30:10 |
Brad Figg |
tags |
|
precise |
|
| 2013-01-12 20:39:08 |
Paul Szabo |
tags |
precise |
apport-collected precise |
|
| 2013-01-12 20:39:11 |
Paul Szabo |
description |
There is a spurious OOM issue with PAE kernel: it will suffer an OOM
crash just by running a few processes.
Please see also
http://bugs.debian.org/695182
and discussion on linux-mm@kvack.org e.g.
http://marc.info/?l=linux-mm&m=135801969519193&w=2
I wonder whether
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1098342
is related.
The issue is a regression with PAE, reproduced and verified on my
home PC with 3GB RAM.
My PC was running kernel linux-image-3.2.0-35-generic so it showed:
psz@DellE520:~$ uname -a
Linux DellE520 3.2.0-35-generic #55-Ubuntu SMP Wed Dec 5 17:45:18 UTC 2012 i686 i686 i386 GNU/Linux
psz@DellE520:~$ free -l
total used free shared buffers cached
Mem: 3087972 692256 2395716 0 18276 427116
Low: 861464 71372 790092
High: 2226508 620884 1605624
-/+ buffers/cache: 246864 2841108
Swap: 20000920 258364 19742556
Then it handled the "sleep test"
bash -c 'n=0; while [ $n -lt 33000 ]; do sleep 600 & ((n=n+1)); ((m=n%500)); if [ $m -lt 1 ]; then echo -n "$n - "; date; free -l; sleep 1; fi; done'
just fine, stopped only by "max user processes" (default setting of
"ulimit -u 23964"), or raising that limit stopped when the machine ran
out of PID space; there was no OOM.
Installing and running the PAE kernel so it showed:
psz@DellE520:~$ uname -a
Linux DellE520 3.2.0-35-generic-pae #55-Ubuntu SMP Wed Dec 5 18:04:39 UTC 2012 i686 i686 i386 GNU/Linux
psz@DellE520:~$ free -l
total used free shared buffers cached
Mem: 3087620 681188 2406432 0 167332 352296
Low: 865208 214080 651128
High: 2222412 467108 1755304
-/+ buffers/cache: 161560 2926060
Swap: 20000920 0 20000920
and re-trying the "sleep test", it ran into OOM after 18000 or so sleeps
and crashed/froze so I had to press the POWER button to recover.
Cheers, Paul
Paul Szabo psz@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of Sydney Australia |
There is a spurious OOM issue with PAE kernel: it will suffer an OOM
crash just by running a few processes.
Please see also
http://bugs.debian.org/695182
and discussion on linux-mm@kvack.org e.g.
http://marc.info/?l=linux-mm&m=135801969519193&w=2
I wonder whether
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1098342
is related.
The issue is a regression with PAE, reproduced and verified on my
home PC with 3GB RAM.
My PC was running kernel linux-image-3.2.0-35-generic so it showed:
psz@DellE520:~$ uname -a
Linux DellE520 3.2.0-35-generic #55-Ubuntu SMP Wed Dec 5 17:45:18 UTC 2012 i686 i686 i386 GNU/Linux
psz@DellE520:~$ free -l
total used free shared buffers cached
Mem: 3087972 692256 2395716 0 18276 427116
Low: 861464 71372 790092
High: 2226508 620884 1605624
-/+ buffers/cache: 246864 2841108
Swap: 20000920 258364 19742556
Then it handled the "sleep test"
bash -c 'n=0; while [ $n -lt 33000 ]; do sleep 600 & ((n=n+1)); ((m=n%500)); if [ $m -lt 1 ]; then echo -n "$n - "; date; free -l; sleep 1; fi; done'
just fine, stopped only by "max user processes" (default setting of
"ulimit -u 23964"), or raising that limit stopped when the machine ran
out of PID space; there was no OOM.
Installing and running the PAE kernel so it showed:
psz@DellE520:~$ uname -a
Linux DellE520 3.2.0-35-generic-pae #55-Ubuntu SMP Wed Dec 5 18:04:39 UTC 2012 i686 i686 i386 GNU/Linux
psz@DellE520:~$ free -l
total used free shared buffers cached
Mem: 3087620 681188 2406432 0 167332 352296
Low: 865208 214080 651128
High: 2222412 467108 1755304
-/+ buffers/cache: 161560 2926060
Swap: 20000920 0 20000920
and re-trying the "sleep test", it ran into OOM after 18000 or so sleeps
and crashed/froze so I had to press the POWER button to recover.
Cheers, Paul
Paul Szabo psz@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of Sydney Australia
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: psz 2190 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xdfddc000 irq 45'
Mixer name : 'SigmaTel STAC9227'
Components : 'HDA:83847618,102801dd,00100201'
Controls : 38
Simple ctrls : 21
CurrentDmesg: [ 28.160013] eth0: no IPv6 routers present
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=9d2bf7ac-9b0a-4082-ac45-f4d3c8e32c23
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Dell Inc. Dell DM061
MarkForUpload: True
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=C
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: root=/dev/mapper/isw_cheedcedhh_DadMirroredTB4 ro quiet splash
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic-pae 3.2.34
RelatedPackageVersions:
linux-restricted-modules-3.2.0-35-generic-pae N/A
linux-backports-modules-3.2.0-35-generic-pae N/A
linux-firmware 1.79.1
RfKill:
Tags: precise
Uname: Linux 3.2.0-35-generic-pae i686
UpgradeStatus: Upgraded to precise on 2012-04-27 (260 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
WifiSyslog: Jan 13 06:42:46 DellE520 NetworkManager[1384]: <info> Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
WpaSupplicantLog:
dmi.bios.date: 03/23/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.2.1
dmi.board.name: 0WG864
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.2.1:bd03/23/2007:svnDellInc.:pnDellDM061:pvr:rvnDellInc.:rn0WG864:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Dell DM061
dmi.sys.vendor: Dell Inc. |
|
| 2013-01-12 20:39:13 |
Paul Szabo |
attachment added |
|
AcpiTables.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481367/+files/AcpiTables.txt |
|
| 2013-01-12 20:39:16 |
Paul Szabo |
attachment added |
|
AlsaDevices.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481368/+files/AlsaDevices.txt |
|
| 2013-01-12 20:39:17 |
Paul Szabo |
attachment added |
|
ArecordDevices.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481369/+files/ArecordDevices.txt |
|
| 2013-01-12 20:39:20 |
Paul Szabo |
attachment added |
|
BootDmesg.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481370/+files/BootDmesg.txt |
|
| 2013-01-12 20:39:22 |
Paul Szabo |
attachment added |
|
Card0.Amixer.values.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481371/+files/Card0.Amixer.values.txt |
|
| 2013-01-12 20:39:25 |
Paul Szabo |
attachment added |
|
Card0.Codecs.codec.2.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481372/+files/Card0.Codecs.codec.2.txt |
|
| 2013-01-12 20:39:27 |
Paul Szabo |
attachment added |
|
Lspci.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481373/+files/Lspci.txt |
|
| 2013-01-12 20:39:28 |
Paul Szabo |
attachment added |
|
Lsusb.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481374/+files/Lsusb.txt |
|
| 2013-01-12 20:39:30 |
Paul Szabo |
attachment added |
|
PciMultimedia.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481375/+files/PciMultimedia.txt |
|
| 2013-01-12 20:39:32 |
Paul Szabo |
attachment added |
|
ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481376/+files/ProcCpuinfo.txt |
|
| 2013-01-12 20:39:34 |
Paul Szabo |
attachment added |
|
ProcInterrupts.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481377/+files/ProcInterrupts.txt |
|
| 2013-01-12 20:39:36 |
Paul Szabo |
attachment added |
|
ProcModules.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481378/+files/ProcModules.txt |
|
| 2013-01-12 20:39:38 |
Paul Szabo |
attachment added |
|
PulseList.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481379/+files/PulseList.txt |
|
| 2013-01-12 20:39:42 |
Paul Szabo |
attachment added |
|
UdevDb.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481380/+files/UdevDb.txt |
|
| 2013-01-12 20:39:48 |
Paul Szabo |
attachment added |
|
UdevLog.txt https://bugs.launchpad.net/bugs/1098961/+attachment/3481381/+files/UdevLog.txt |
|
| 2013-01-12 20:41:01 |
Paul Szabo |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2013-01-14 16:25:10 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
Medium |
|
| 2013-01-14 16:26:54 |
Joseph Salisbury |
linux (Ubuntu): status |
Confirmed |
Incomplete |
|
| 2013-01-16 09:18:41 |
Paul Szabo |
tags |
apport-collected precise |
kernel-bug-exists-upstream |
|
| 2013-01-16 09:19:03 |
Paul Szabo |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2013-08-06 11:39:34 |
penalvch |
tags |
kernel-bug-exists-upstream |
bios-outdated-2.4.0 kernel-bug-exists-upstream needs-upstream-testing precise regression-potential |
|
| 2013-08-06 11:40:30 |
penalvch |
linux (Ubuntu): status |
Confirmed |
Incomplete |
|
| 2013-08-08 11:45:35 |
penalvch |
tags |
bios-outdated-2.4.0 kernel-bug-exists-upstream needs-upstream-testing precise regression-potential |
kernel-bug-exists-upstream-v3.8-rc3 latest-bios-2.4.0 needs-upstream-testing precise regression-potential |
|
| 2013-10-10 04:17:19 |
Launchpad Janitor |
linux (Ubuntu): status |
Incomplete |
Expired |
|
| 2014-09-16 06:06:22 |
penalvch |
tags |
kernel-bug-exists-upstream-v3.8-rc3 latest-bios-2.4.0 needs-upstream-testing precise regression-potential |
kernel-bug-exists-upstream-v3.8-rc3 latest-bios-2.4.0 needs-upstream-testing precise regression-potential trusty |
|
| 2014-09-26 01:33:08 |
Paul Szabo |
bug watch added |
|
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=695182 |
|
