Bug 529536 - iwlagn takes 100% of my CPU( page allocation failure. order:2)
Summary: iwlagn takes 100% of my CPU( page allocation failure. order:2)
Keywords:
Status: CLOSED NEXTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 12
Hardware: All
OS: Linux
low
medium
Target Milestone: ---
Assignee: Stanislaw Gruszka
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-10-18 12:27 UTC by Matěj Cepl
Modified: 2018-04-11 07:02 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2010-07-22 10:21:13 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
screenshot illustrating the issue (97.28 KB, image/png)
2009-10-18 12:27 UTC, Matěj Cepl 		no flags Details
/var/log/messages (6.74 KB, text/plain)
2009-10-18 12:28 UTC, Matěj Cepl 		no flags Details
lsmod stdout (3.12 KB, text/plain)
2009-10-18 12:29 UTC, Matěj Cepl 		no flags Details
output of dmesg (121.53 KB, text/plain)
2009-10-18 12:29 UTC, Matěj Cepl 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Linux Kernel 14141 0 None None None Never

Description Matěj Cepl 2009-10-18 12:27:31 UTC 
Created attachment 365154 [details]
screenshot illustrating the issue

Description of problem:
The attached is what I get from my top. Apparently iwlagn decided to take over my computer.

Version-Release number of selected component (if applicable):
2.6.31.4-84.fc12.x86_64

How reproducible:
happended twice

Steps to Reproduce:
1.just run notebook connected to the WiFi LAN
2.
3.
  
Actual results:
iwlagn takes over 100% CPU (fortunately I have dual-core)

Expected results:
wifi driver doesn't take any significant amount of CPU

Additional info:
Comment 1 Matěj Cepl 2009-10-18 12:28:25 UTC 
Created attachment 365155 [details]
/var/log/messages
Comment 2 Matěj Cepl 2009-10-18 12:29:12 UTC 
Created attachment 365156 [details]
lsmod stdout
Comment 3 Matěj Cepl 2009-10-18 12:29:59 UTC 
Created attachment 365157 [details]
output of dmesg
Comment 4 Bug Zapper 2009-11-16 13:48:10 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Comment 5 Stanislaw Gruszka 2010-03-11 15:22:23 UTC 
Hi Matej

Are you able to reproduce? If so could you check if that kernel makes any difference:

http://koji.fedoraproject.org/koji/taskinfo?taskID=2045788
Comment 6 Stanislaw Gruszka 2010-07-22 10:21:13 UTC 
Bug should be fixed in F-13.
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