GNU bug report logs - #6643
[PATCH] sort: fix a bug with sort -u and xmemcoll0, and tune keycompare

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Package: coreutils;

Reported by: Paul Eggert <eggert <at> CS.UCLA.EDU>

Date: Thu, 15 Jul 2010 23:34:02 UTC

Severity: normal

Tags: patch

Done: Jim Meyering <jim <at> meyering.net>

Bug is archived. No further changes may be made.

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Message #8 received at 6643 <at> debbugs.gnu.org (full text, mbox):

From: Chen Guo <chen.guo.0625 <at> gmail.com>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 6643 <at> debbugs.gnu.org
Subject: Re: bug#6643: [PATCH] sort: fix a bug with sort -u and xmemcoll0, and 
	tune keycompare
Date: Thu, 15 Jul 2010 17:05:20 -0700

Hi Professor Eggert,
> Chen, can you please verify that "sort -u" does not access the same
> line from multiple threads, even saved lines?  If it does, then even this patch
> is not enough: we would need to alter write_bytes so that it does not
> modify its argument at all.
Off the top of my head, no line is ever accessed by multiple threads
at the same time.
I'll go through the code tonight when I get home to doubly make sure.
This bug report was last modified 14 years and 41 days ago.

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