memory eaten: poll_schedule_timeout

Bug #488849 reported by dino99 on 2009-11-26
This bug affects 11 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

on Karmic 32 bits: the memory is progressively eatened and semm to never be freed.

there is nothing in the logs, but when i open "monitor system", in the process tab:

- every process ended with : poll_schedule_timeout
- randomly, some of those are in "futex_wait_queue_me" state, then failed in "poll_schedule_timeout"

It's the first time that i have this problem on a upto date system, but googling around, i've found lots of related links on other kernel or distro. Some patch seen on linuxhq / lkml / kerneltrap

This has happen with these process running:
-boinc 6.10.17
- firefox 3.5.5
- pulseaudio 0.9.19-0ubuntu4

ProblemType: Bug
Architecture: i386
 /dev/snd/pcmC0D0p: oem 2695 F...m pulseaudio
 /dev/snd/controlC0: oem 2695 F.... pulseaudio
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
 Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 19'
   Mixer name : 'Realtek ALC882'
   Components : 'HDA:10ec0882,1043e601,00100101'
   Controls : 44
   Simple ctrls : 25
CheckboxSubmission: 0e856621e764f27871668a8d860c3158
CheckboxSystem: edda5d4f616ca792bf437989cb597002
Date: Thu Nov 26 17:46:36 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=f4216733-a2b7-4818-9852-9bb41d54d87c
 lo no wireless extensions.

 eth0 no wireless extensions.

 eth1 no wireless extensions.
NonfreeKernelModules: nvidia
Package: linux-image
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-15-generic root=UUID=9e61e83e-bca9-43cf-aa90-5a68892213fa ro quiet splash
 PATH=(custom, user)
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
 linux-backports-modules-2.6.31-15-generic N/A
 linux-firmware 1.25

SourcePackage: linux-meta
Uname: Linux 2.6.31-15-generic i686

 (gnome-settings-daemon:2732): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:2732): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:2765): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (polkit-gnome-authentication-agent-1:2777): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:3449): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed 07/10/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2801
dmi.board.asset.tag: To Be Filled By O.E.M. P5W DH Deluxe
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2801:bd07/10/2008:svnASUSTEKCOMPUTERINC:pnP5WDHDeluxe:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5WDHDeluxe:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: P5W DH Deluxe
dmi.product.version: System Version
dmi.sys.vendor: ASUSTEK COMPUTER INC

dino99 (9d9) wrote :
dino99 (9d9) wrote :

same problem with Lucid

summary: - memory eated: poll_schedule_timeout
+ memory eaten: poll_schedule_timeout
Andy Whitcroft (apw) wrote :

[This is an automated message. Apologies if it has reached you inappropriately.]

This bug was reported against the linux-meta package when it likely should have been reported against the linux package instead. We are automatically transitioning this to the linux kernel package so that the appropriate teams are notified and made aware of this issue.

If this bug really is a bug in the linux-meta package you can move it back to linux-meta and tag it kj-linux-meta, or contact us on the #ubuntu-kernel channel on the FreeNode IRC server. Thanks.

affects: linux-meta (Ubuntu) → linux (Ubuntu)
tags: added: kernel-karmic
dino99 (9d9) on 2010-04-04
Changed in linux (Ubuntu):
status: New → Invalid
Lampasona (lampasona-vito) wrote :

There periodic hangs of open applications as well as random system freezes that require hard reboot.

All processes in the sytem monitor are indicated mostly as poll_schedule_timeout or as futex_wait_queue_me

Michele Mattioni (mattions) wrote :

I have this problem on 10.04 Lucid Lynx as well.
The computers is just booted and only the housekeeping application are running.

The load is at 0.31 and I have no clue why.

ASAP I try to do something more computational challenging, as to start firefox..., the system slow down and degrade badly till a point my only option is to reboot.

I think this is stil a valid bug.
@dino99: why did you put the Invalid tag?

Michele Mattioni (mattions) wrote :

my current kernel is:

Linux triton 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:27:30 UTC 2010 i686 GNU/Linux

Changed in linux (Ubuntu):
status: Invalid → New
dino99 (9d9) wrote :

have change to pae kernel and dont have issue, thats why my "invalid" choice

Brad Figg (brad-figg) on 2010-07-13
tags: added: kj-triage
DragonDon (dragondon) wrote :

Wow, almost a year and still the problem exists. Hate to bitch guys but this is more than just some 'minor' issue. Just when I was getting good with Ubuntu.

Linux dragondon-desktop 2.6.32-24-generic #43-Ubuntu SMP Thu Sep 16 14:17:33 UTC 2010 i686 GNU/Linux

Patrick Boake (pboake) wrote :

Ubuntu devs are usually so responsive I'm surprised a bug causing so many problems to so many people sat idle for so long.

Linux EEE-UNR 2.6.31-22-generic #67-Ubuntu SMP Sat Oct 16 19:10:07 UTC 2010 i686 GNU/Linux

Ubuntu 9.04 on Asus EEE 4G Surf (root on 4GB SSD, /home on 8GB SD card)

apt-get dist-upgrade fails for lack of disk space and is a work-around rather than a solution.

pboake@EEE-UNR:~$ sudo ps -elf | grep poll_s| wc -l returns 92
pboake@EEE-UNR:~$ sudo ps -elf | grep futex_| wc -l returns 9
pboake@EEE-UNR:~$ sudo ps -elf | wc -l returns 172

discussion in #Ubuntu ran to comments about 9.04 receiving updates intended for other versions

I have an identical machine also running Ubuntu and will check for the same issue.

Patrick Boake (pboake) wrote :

my apologies the 2nd system is running 9.10 and no symptoms

dino99 (9d9) wrote :

i was not having this problem for a while, but its back now on Natty 37-* generic-pae:

memory used by programs is growing till 95 % then network navigation freeze and i need a cold boot. Even closing/killing each app/process running dont revert the problem, but i cant say if the problem come from kernel or app or process (the first app that freeze is ipblock) but strangely swap is mostly not used.

dino99 (9d9) on 2010-11-27
Changed in linux (Ubuntu):
status: New → Confirmed
Brad Figg (brad-figg) on 2010-12-03
tags: added: acpi-table-checksum
Daniel (daniel-matthis) wrote :

Just to add that I also have this problem from time to time.

Distribution: Ubuntu 10.10 - 32 bit
Kernel: 2.6.35-22 generic #35-Ubuntu SMP Sat Oct 16 20:36:48 UTC 2010 i686 GNU/Linux

Symptoms: Apps that are open will continue to function but most new apps will not launch. I have had gnome-terminal open and it works but if I try to open a new one I simply see the new terminal process show up in "poll_schedule_timeout".

Some apps seem to still open such as System Monitor and sometimes chromium. But all other applications and menu bars seem to stop.

Typically I will see processors firefox in do_wait and firefox-bin will be in "poll_schedule_timeout" but when things seem to stop working firefox will just have the "poll_schedule_timeout".

Daniel (daniel-matthis) wrote :

Almost forgot. The system generally starts working again after 15-45 minutes.

Roger Wilner (roger-wilner) wrote :

Proceeding from System to Administration to Log File Viewer, there is all sorts of activity which seems to have nothing at all to do with my use of the system. I have copied swaths of it to Open Office documents, with the vague hope that someone more knowledgeable than I will make sense of it at some point.

Has anyone suggested yet that this might be a SECURITY problem?

Roger Wilner (roger-wilner) wrote :

Let me be a bit more specific: from reading my log files and checking "all processes" through my system monitor, I have concluded that my computer has been turned into a zombie and probably added to a botnet.

I have learned about "nice" values (and it was "pulse audio" which had been set to a high value, one which is preceded by a negative symbol--"-11" in my case) and a variety of other things. I suggest that anyone who has been wondering about "poll_schedule_timeout", "futex_wait_queue_me" and "ep poll"shown for their processes read some of the discussions under "botnet" in the security area of these forums.

I plan to arrange for a clean install of Ubuntu for my computer (in other words, to have everything wiped off my disk and Ubuntu re-installed) and to learn more about securing my system before re-connecting that computer to the Internet. I also will change my IP address and see if my ISP can give me anything other than a static IP address.

I would appreciate additional suggestions for continuing my computer education. I am surprised that no one seems to have connected the "poll_schedule_timeout" problem with unauthorized use of computers, specifically with botnets.

Rik (riksoft) wrote :

Same to me after opening system monitor

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: Confirmed → Won't Fix
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