sem(4) lockup in python?

[Jan Mikkelsen]

On 12/01/2012, at 3:47 AM, Garrett Cooper wrote:

> [ builds hanging in python with waf … ]

> Glad to see that iXsystems isn't the only one ([1] -- please add a "me
> too" to the PR). The problem is that we do FreeNAS nightlies and they
> frequently get stuck building tdb (10%~20% of the time) and it sticks
> when doing interactive builds as well. The issue appears to be
> exacerbated when we have more builds running in parallel on the same
> machine. I've also run into the same issue compiling talloc because it
> uses the same waf infrastructure as tdb, which was designed to "speed
> things up by forcing builds to be parallelized" (It builds
> kern.smp.ncpus jobs instead of -j 1). Furthermore, it seems to occur
> regardless of whether or not we have the WITH_SEM enabled in python or
> not (build.ix's copy of python doesn't have it enabled, but
> streetfighter.ix, my system bayonetta, etc do).

Any progress on this? Or a workaround?

Just had another build stuck on this …

Jan.