[Bug nptl/21422] Deadlock in 2.25 pthread_cond_broadcast after process abort

["dimitri.staessens at ugent dot be" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=21422

Dimitri Staessens <dimitri.staessens at ugent dot be> changed:

           What    |Removed                     |Added
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                 CC|                            |dimitri.staessens at ugent dot be

--- Comment #1 from Dimitri Staessens <dimitri.staessens at ugent dot be> ---
Hi, 

I'm following the nptl bugs since we found some apparent ones ourselves in
2.25.

I looked at your code and it could be you are depending on undefined behaviour.
When you abort and restart the process, shouldn't you use a robust mutex? Can
you try that?

http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_mutexattr_setrobust.html

and check if the calls set errno values to EOWNERDEAD or ENOTRECOVERABLE.

cheers,

Dimitri

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