processes hanging in _umtx_op #2

2009-02-17 Thread Johannes Scholz
Today i have upgraded python to 2.5.4 and all of the sudden most of my python processes seem to hang. I have managed to track down the problem to the MySQLdb module. A simple python -c "import MySQLdb" seemed to hang forever and i could only terminate it with kill -9. A similar problem seem

Re: processes hanging in _umtx_op

2008-10-05 Thread Dale Hagglund
[Mel, the last time I replied to your @rachie address, I got a bounce. I'm still including it here on the CC list. Should I remove it and just reply to you via this list? --rdh] Diane, Mel, thanks for your suggestions so far. Mel> If upgrading ports is a possible solution, then you have the

Re: processes hanging in _umtx_op

2008-10-05 Thread Diane Bruce
On Sun, Oct 05, 2008 at 08:19:01PM +0200, Mel wrote: > On Sunday 05 October 2008 18:07:30 Dale Hagglund wrote: > > > "Mel" == Mel <[EMAIL PROTECTED]> writes: > ... > > If upgrading ports is a possible solution, then you have the fine task of > finding out, which library in everything that's be

Re: processes hanging in _umtx_op

2008-10-05 Thread Mel
On Sunday 05 October 2008 18:07:30 Dale Hagglund wrote: > > "Mel" == Mel <[EMAIL PROTECTED]> writes: > Mel> It's not a 'standard answer', btw, but an educated guess, since > Mel> utmx is (simplified) the kernel equivalent of > Mel> pthread_(rwlock|mutex)_* and looks like it's hang

Re: processes hanging in _umtx_op

2008-10-05 Thread Diane Bruce
On Sun, Oct 05, 2008 at 10:07:30AM -0600, Dale Hagglund wrote: > > "Mel" == Mel <[EMAIL PROTECTED]> writes: > > Mel> Can you change scheduler to ULE and rebuild kernel? > Mel> Or better yet, try 7.1-PRERELEASE, since it's good to know if > Mel> this bug persists with 7.1 being clos

Re: processes hanging in _umtx_op

2008-10-05 Thread Dale Hagglund
> "Mel" == Mel <[EMAIL PROTECTED]> writes: Mel> Can you change scheduler to ULE and rebuild kernel? Mel> Or better yet, try 7.1-PRERELEASE, since it's good to know if Mel> this bug persists with 7.1 being close to release. I'll rebuild with ULE first, and let you and the list kn

Re: processes hanging in _umtx_op

2008-10-05 Thread Mel
On Sunday 05 October 2008 02:12:44 Dale Hagglund wrote: > I can reproduce this reliably with > > $ python -c "import wx" > > I'm running 7.0-RELEASE-p2 with "uname -a" giving the following output, > suitably wrapped. > > FreeBSD ponoka.ab.hsia.telus.net > 7.0-RELEASE-p2 Fre

processes hanging in _umtx_op

2008-10-04 Thread Dale Hagglund
While experimenting with gnuradio and latest packages for openoffice.org-3, I've run across a situation where a process hangs in the _umtx_op system call. The process can't be interrupted with SIGINT, but SIGQUIT kills it and generates a core dump. I can reproduce this reliably with $ py