[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/750133
Title:
The system becomes unresponsive under memory pressure even without
swap
Status in “linux” package in Ubuntu:
Expired
Bug description:
I've disabled swap in my system. Even then with workloads that stress
the VM I have been able to make it completely unresponsive. There were
two situations where I observed this:
- OpenOffice loading a document full of images from disk. Midway through the
process the system became completely unresponsive.
- Running a script that unpacked a series of tar archives and compared them
with diff. I created a 1GB tmpfs dir to do it in to not have the uncompressed
archives ever hit disk. Midway through the process the system again became
completely unresponsive
In both situations the harddrive light was on continuously and it
could be heard working. Since none of the workloads actually writes to
disk and there's no swap the only thing I can imagine can be happening
is that dirty buffers are being written back to free memory. I didn't
expect this to have such an adverse impact on responsiveness of the
system though.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-28-generic 2.6.35-28.49
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-28.49-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: pedrocr 1698 F.... pulseaudio
/dev/snd/controlC0: pedrocr 1698 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf8220000 irq 46'
Mixer name : 'Analog Devices AD1984'
Components : 'HDA:11d41984,17aa20d6,00100400'
Controls : 31
Simple ctrls : 19
Card1.Amixer.info:
Card hw:1 'U0x46d0x80a'/'USB Device 0x46d:0x80a at usb-0000:00:1a.7-3, high
speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:080a'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 6400
Mono: Capture 5504 [86%] [27.50dB] [on]
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
7MHT25WW-1.03'
Mixer name : 'ThinkPad EC 7MHT25WW-1.03'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Mon Apr 4 03:01:18 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=13a2cbed-32ea-49ec-8630-6cad479c043d
MachineType: LENOVO 7673CR8
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-28-generic
root=UUID=7e1b8cc5-9055-41c8-bd30-ddde4717884c ro processor.max_cstate=2 quiet
splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38.5
SourcePackage: linux
WpaSupplicantLog:
dmi.bios.date: 03/12/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NETC0WW (2.20 )
dmi.board.name: 7673CR8
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr7NETC0WW(2.20):bd03/12/2009:svnLENOVO:pn7673CR8:pvrThinkPadX61:rvnLENOVO:rn7673CR8:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7673CR8
dmi.product.version: ThinkPad X61
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/750133/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
