Last modified: 2010-05-21 19:51:20 UTC

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Bug 9410 - Out of memory in diff
Out of memory in diff
Status: RESOLVED DUPLICATE of bug 7601
Product: Wikimedia
Classification: Unclassified
General/Unknown (Other open bugs)
PC Windows XP
: Normal normal with 4 votes (vote)
: ---
Assigned To: Nobody - You can work on this!
Depends on:
  Show dependency treegraph
Reported: 2007-03-24 17:04 UTC by Jayden54
Modified: 2010-05-21 19:51 UTC (History)
5 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Description Jayden54 2007-03-24 17:04:30 UTC
It seems that the diff engine doesn't work when really large changes are made. 

The following diff demonstrates this problem:

If you look at the diff it appears as if no changes at all have been made, but
in reality around 64,000 characters were removed. Obviously something is wrong
as a message is also displayed: "Out of memory in diff."
Comment 1 nryan 2007-03-29 00:39:12 UTC
It's now occurring with small changes also:
Comment 2 Hesperian 2007-03-29 13:36:59 UTC
Don't know if this helps, but here's another example where only one character
was changed:
Comment 3 Tim Starling 2007-03-29 17:34:47 UTC
The changes are not really large. Those diffs would only require a few hundred
KB. The problem is probably that some servers (srv51, srv69, srv103) are
swapping and are probably experiencing transient out of memory conditions.
Comment 4 Thomas Goldammer 2008-02-16 20:10:56 UTC
Hoi. Found a new one outside enwiki:
Comment 5 Bryan Baron 2009-09-23 20:29:12 UTC
I can't reproduce this. This bug is very old and looks like sporadic server problems. WORKSFORME?
Comment 6 Chad H. 2010-05-21 19:51:20 UTC

*** This bug has been marked as a duplicate of bug 7601 ***

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