dvdrip hang when PERL_VERSION=5.12.4

[Kevin Oberman]

On Sat, Dec 10, 2011 at 10:33 AM, Gary Jennejohn
<gljennjohn at googlemail.com> wrote:
>
> I just noticed that dvdrip does not work when PERL_VERSION=5.12.4.
>
> Ths symptom is a hang as soon as the user tries to create a new project.
> Here's the ps output:
> 150 5360 4704     1  40  0 236740  47116 umtxn    I     2    0:00.88
> /usr/local/bin/perl /usr/local/bin/dvdrip
>
> Note the umtxn.
>
> Forcing PERL_VERSION=5.8.9 and reinstalling dvdrip results in a working
> copy and creating a new project returns basically immediately and everything
> else also works.
>
> Just thought I'd report it for the archive.

Ouch! umtxn is waiting on a kernel lock. This should NOT happen and it
looks more like a kernel issue than a userland one.

If you can still run dvdrip with 5.12.4, what does 'procstat -k PID"
show? It should provide some useful kernel stack information. Also,
what version of FreeBSD and is it on i386, and64, or some other?
-- 
R. Kevin Oberman, Network Engineer
E-mail: kob6558 at gmail.com