Bug 771561 - nouveau module fills /var/log/messages filesystem
Summary: nouveau module fills /var/log/messages filesystem
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-nouveau
Version: 16
Hardware: x86_64
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Ben Skeggs
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-01-04 05:53 UTC by Don Buchholz
Modified: 2013-02-13 12:46 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-13 12:46:05 UTC
Type: ---


Attachments (Terms of Use)
spreadsheet w/ analysis of nouveau log message volumes (12/2011-02/2012) (14.75 KB, application/vnd.oasis.opendocument.spreadsheet)
2012-02-16 05:11 UTC, Don Buchholz
no flags Details

Description Don Buchholz 2012-01-04 05:53:40 UTC
Description of problem:
The 'nouveau' module is writing a huge number of messages to the /var/log/messages file, and causing problems when the /var filesystem fills up.

Version-Release number of selected component (if applicable):
kernel-3.1.6-1.fc16.x86_64


How reproducible:
Usually happens in less than one week.


Steps to Reproduce:
1. Use system in run-level 5 ...
2. Watch the size of the log file carefully ...
3.
  
Actual results:
System disk can fill.

Expected results:
I expect the system not to write more than 1GB of messages per day!

Additional info:
Most of the messages are of the form:
   Jan  1 05:58:13 hogs kernel: [292643.108503] [drm] nouveau 0000:00:05.0: PFIFO_CACHE_ERROR - Ch 3/7 Mthd 0x1efc Data 0x000001bf

The system logged over 4.5GB of nouveau messages in only 12.5 hours on Jan 1.

Comment 1 Don Buchholz 2012-02-16 05:08:05 UTC
I think this is a problem of "High" or "Urgent" severity.  I'm attaching a spreadsheet which gives some more info on what kernel versions have had the problem, and how many bytes per hour are being consumed by the 'nouveau' syslog messages.  Check out line #9 and #20 -- 8 GiB/hr and 7GiB/hr!

So, if I want to allocate enough disk space to rotate the logs only once per week (the default configuration for /var/log/messages), then I'll need ~10GiB/hr * 24 hr/day * 7 days/week = 1,680 GiB.  Over 1.5 TeraBytes just to log 'nouveau' messages!

Comment 2 Don Buchholz 2012-02-16 05:11:09 UTC
Created attachment 562392 [details]
spreadsheet w/ analysis of nouveau log message volumes (12/2011-02/2012)

Comment 3 Fedora End Of Life 2013-01-16 12:29:08 UTC
This message is a reminder that Fedora 16 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 16. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '16'.

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Comment 4 Fedora End Of Life 2013-02-13 12:46:10 UTC
Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.


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