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Re: Builds on buildsys.fedoraproject.org fails, but the build self will work.



On Wed, 2007-09-19 at 03:59 +0200, Michael Schwendt wrote:
> On Sat, 08 Sep 2007 11:01:24 +0200, Frank Büttner wrote:
> 
> > Michael Schwendt schrieb:
> > > On Sat, 08 Sep 2007 09:36:21 +0200, Frank Büttner wrote:
> > > 
> > >> Hello,
> > >> something with the build system is wrong.
> > >> The build self will work, but the system says failed.
> > >> Have anyone see this also?
> > >>
> > >> Build ID: 36210 and 36211.
> > >
> > > It has been a topic on fedora-maintainer multiple times. Here's the
> > > corresponding ticket:
> > > 
> > > https://hosted.fedoraproject.org/projects/fedora-infrastructure/ticket/125
> > > 
> > 
> > Yes, it's my problem too. I hope it will be fixed soon.
> 
> Consider this fixed [1]. Resubmit your failed build-jobs for Extras
> and EPEL and see.
> 
> After I'd noticed that approx. 5 out of 6 noarch build-jobs on the
> ppc2 server failed with the same symptoms, I've picked yum-cron as a
> test pkg for an online-debugging session on the ppc2 host. As another
> pkg that had failed very often, I've tested the final patch with
> ctapi-common.
> 
> The reason for failure was a race condition between plague 0.4.4.1 and
> mock. The plague builder did not monitor the mock state accurately
> enough. Mock could change its state (e.g. from prepping/setup to
> building) while the plague builder was sleeping. In the cases I've
> observed, mock had exited already when plague woke up and made a wrong
> assumption about the state mock was in when it exited.
> 
> [1] http://home.arcor.de/ms2002sep/tmp/plague-0.4.4.1-racecondition.patch

Workaround looks sane, diagnosis is correct, thanks for tracking this
down and fixing it.  Out of curiosity, did a mock update or a hardware
change exacerbate the issue?  We only just started seeing this after ~2
years of using plague.

Dan



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