Re: mod_perl "instability" on Ubuntu 10.04 server platform

On 28 Oct 2010, at 12:49, Vanja Hrustic wrote:
> 
> Unfortunately, it seems like I'd have to dig deep into Apache or
> mod_perl to hunt this down, and I do not have knowledge (nor
> 'intuition' :) to do this without some guidance.

I have a basic mistrust of shipped packages. I'm in the process of building
perl, httpd and modperl from scratch for a client. I think for serious
use, it's the only way to go.


> 
> Basically, if I end up with these unresponsive threads, is there
> anything I can do to figure out what caused them to hang? Would gdb be
> of any use, would I be able to attach to these threads and see any
> useful details (never debugged threaded apps, so no idea how that
> would work)?


Yes, you can do a gdb attach and a stack trace. You should be able to
see from that if it's in apache or perl that the problem is happening.