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Description of problem:
In tracking down some hardware problems with an SMP system, we came up with this
very simple test.
while [ 1 ] ; do date ; done | uniq -c
I would expect that on an otherwise idle machine the date command can be run
roughly the same number of times per second over long periods of time. But we
see a trend over a few minutes where fewer and fewer instances are run.
Sometimes this leads to that shell crashing.
I posted this to the bash-bug list and got the following reply:
Date: Mon, 16 Sep 2002 10:10:32 -0400
From: Chet Ramey <firstname.lastname@example.org>
Cc: email@example.com, firstname.lastname@example.org, email@example.com
Subject: Re: odd behavior of while loop, leading to crash
It's a race condition. There is a fix in bash-2.05b.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Fixed package is bash-2.05b-5.