Re: Asterisk deadlocks since Kernel 4.1

From: Stefan Priebe
Date: Wed Nov 18 2015 - 16:20:59 EST

Am 18.11.2015 um 22:00 schrieb Hannes Frederic Sowa:

On Wed, Nov 18, 2015, at 21:23, Stefan Priebe wrote:

Am 17.11.2015 um 20:43 schrieb Thomas Gleixner:
On Tue, 17 Nov 2015, Stefan Priebe wrote:
I've now also two gdb backtraces from two crashes:

They don't tell me anything as I have no idea of the inner workings of
asterisk. You might be better of to talk to the asterisk folks to help
you track down what that thing is waiting for, so we can actually look
at a well defined area.

The asterisk guys told me it's a livelock asterisk is waiting for
getaddrinfo / recvmsg.

Thread 2 (Thread 0x7fbe989c6700 (LWP 12890)):
#0 0x00007fbeb9eb487d in recvmsg () from /lib/x86_64-linux-gnu/
#1 0x00007fbeb9ed4fcc in ?? () from /lib/x86_64-linux-gnu/
#2 0x00007fbeb9ed544a in ?? () from /lib/x86_64-linux-gnu/
#3 0x00007fbeb9e92007 in getaddrinfo () from

Florian Weimer recently patched glibc to detect filedescriptors which
have been reused incorrectly in the glibc name resolving routines:

Could you determine the type of filedescriptor in /proc/pid/fd and
/proc/net/netlink by matching inodes?

you mean just:
la /proc/$pid/fd


cat /proc/net/netlink



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