Re: [ANNOUNCEMENT] GDB BuildBot

On Tuesday, January 27 2015, Mark Wielaard wrote:

> On Wed, 2015-01-21 at 17:53 -0500, Sergio Durigan Junior wrote:
>> First, thanks to Mark Wielaard for setting up a Debian Wheezy x86_64
>> machine as one of our buildslaves!
>
> BTW. I saw more spurious failures on this setup than on the other
> buildbot slaves. After lots of digging it turns out that all released
> versions of dejagnu have a bug that causes spurious fails in some cases
> on SMP machines...
>
> The patch to fix that was posted back in 2005, and was picked up by
> fedora in 2006. Which explains why I could reproduce it on my Fedora or
> RHEL setups. But at least Debian based distros don't have this patch
> yet, since it is not in the latest 1.5.1 dejagnu release yet.
>
> It is in upstream dejagnu git now:
> https://lists.gnu.org/archive/html/dejagnu/2011-03/msg00019.html
>
> Full writeup is in the Debian bug report:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776362
>
> If you are running a buildbot slave (or just make gdb-check) and run a
> machine with multiple cores you might want to check that you have the
> above patch applied to prevent some spurious FAILs.

Wow :-).  Thanks for the investigation, Mark.  It is probably worth
putting this info in the wiki:
<http://sourceware.org/gdb/wiki/BuildBot>.  I will put it there later
(if you don't beat me to it).

Cheers,

-- 
Sergio
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