Re: NPTL: pthread_condtimedwait hang or mutex_lock hang

Ulrich Drepper <[email protected]> Wed, 05 Nov 2003 20:32:55 -0800
Newsgroups gmane.comp.lib.phil
Organization Red Hat, Inc.
Message-ID <[email protected]>
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Srikrishnan Sundararajan wrote:
>  The following program is a simpler illustration of the problem posted
> by me earlier.  It fails and succeeds in the same environments as the
> first program.

The reason for the lockup is that the cleanup handlers pthread_cond_wait
and the cleanup handler your code register are not executed in the
correct order.  And this happens because you are using the LinuxThreads
headers.  If you'd use the NPTL headers everything would work fine.

Since we unfortunately cannot pull the plug on the LT headers yet Jakub
came up with a patch which should handle this case.  The current CVS has
it, as will future releases and updates.

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