Bug 10851 - vmalloc problem with DEBUG_PAGEALLOC config option
Summary: vmalloc problem with DEBUG_PAGEALLOC config option
Status: CLOSED CODE_FIX
Alias: None
Product: Memory Management
Classification: Unclassified
Component: Page Allocator (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Andrew Morton
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-06-03 05:12 UTC by Zdenek Kabelac
Modified: 2008-09-04 11:37 UTC (History)
1 user (show)

See Also:
Kernel Version: 2.6.26-rc3
Subsystem:
Regression: ---
Bisected commit-id:


Attachments

Description Zdenek Kabelac 2008-06-03 05:12:44 UTC
Latest working kernel version:
Earliest failing kernel version:
Distribution:
Hardware Environment:
Software Environment:
Problem Description:
http://lkml.org/lkml/2008/5/27/51

Steps to reproduce:
Basicaly my test case looks like two shells - one is running loop of make install and another  vgchage -an/y - this sometimes makes the nash crashing - and possibly during this segmentation fault something bad happens (the 'make install' loop must be restarted couple time as the first crash might not be the one where the problem starts)
Comment 1 Zdenek Kabelac 2008-06-09 06:01:36 UTC
adding short comment:  with recent kernel version 2.6.26-rc5 commit: aab2545fdd6641b76af0ae96456c4ca9d1e50dad it looks like I'm unable to easily hit my problem again - thus either the bug was fixed or the problem is much harder to hit. I'll keep an eye on this issue and I've started to use compiled kernel with this flag again.
Comment 2 Thomas Gleixner 2008-07-08 23:29:28 UTC
Any update to this ?
Comment 3 Zdenek Kabelac 2008-07-09 00:45:00 UTC
looks like the problem/race was fixed in the -rc5 build - I've not seen this  problem for that moment.  I guess the bug could be closed.

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