Re: Asterisk deadlocks since Kernel 4.1

From: Hannes Frederic Sowa
Date: Thu Nov 19 2015 - 07:41:49 EST


On Thu, Nov 19, 2015, at 12:43, Stefan Priebe - Profihost AG wrote:
>
> Am 19.11.2015 um 12:41 schrieb Hannes Frederic Sowa:
> > On Thu, Nov 19, 2015, at 10:56, Stefan Priebe - Profihost AG wrote:
> >> OK it had a livelock again. It just took more time.
> >>
> >> So here is the data:
> >
> > Thanks, I couldn't reproduce it so far with simple threaded resolver
> > loop on your kernel. :/
> >
> > Your data is useless if you don't also provide the file descriptor which
> > you are blocking on right now. ;)
> >
> > Thanks,
> > Hannes
>
> ah sorry. So we need the gdb backtrace with the rcvmsg and then the fd
> list + netlink list?

Yes, albeit the probability we find something new is minimal. We already
know it blocks deep down in netlink code. I tried to reproduce it in
multithreaded environment with no results so far. Can you even try a
newer kernel?

Bye,
Hannes
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