[Asterisk-Users] Avoided deadlock

[Paradise Dove]

but still the main question mark remains!!!!:
what are the possible causes which make this warning appear????

thanks!

On Tue, 1 Feb 2005 18:10:03 +0330, Paradise Dove <pardove at gmail.com> wrote:
> but still the main question mark remains!!!!:
> what are the possible causes which make this warning appear????
> 
> thanks!
> 
> On Tue, 25 Jan 2005 16:36:29 -0500, Paul Rodan <asterisk at glitch.cc> wrote:
> > This started showing up a few upgrades ago. It always avoids a deadlock, for
> > SIP and IAX, it's friggin annoying but I don't see any actual issues,
> > everything works as normal.
> >
> > The most common device it "avoids" a deadlock on is my Cisco 3640 router. I
> > have 6 Voice T1/PRI's plugged into it, it converts it to/from SIP. My
> > Asterisk server will go to push a call to the Cisco via SIP and I get that
> > message quite often, but the call goes through perfectly.
> >
> > Seems like a waste to log it if nothing is actually wrong and everything
> > works normal. I can't seem to find out if it's giving me a warning about
> > something that should not occur. I've rebooted the Cisco 3640 and my
> > Asterisk server to no Avail.
> >
> > I'm using a Super Micro Celeron 2.8ghz w/ 512mb of RAM and a 40gb IDE hard
> > drive, running Gentoo 2004.3; No digium hardware, just zaptel/zaprtc w/
> > rtcsetup running in the background.
> >
> >
> > -----Original Message-----
> > From: asterisk-users-bounces at lists.digium.com
> > [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Paradise Dove
> > Sent: Tuesday, January 25, 2005 3:10 PM
> > To: brett at worldcall.net; Asterisk Users Mailing List - Non-Commercial
> > Discussion
> > Subject: Re: [Asterisk-Users] Avoided deadlock
> >
> > it would help to know all the possible causes for this warning,
> > something like:
> > - kernel
> > - hardware latency (MB, cpu, ...)
> > - buggy sip device
> > - lack of resource
> > - ...
> >
> > just let us know if anybody knows.
> >
> > thanks,
> > Paradise Dove
> >
> > On Mon, 24 Jan 2005 11:28:34 -0600, brett-asterisk at worldcall.net
> > <brett-asterisk at worldcall.net> wrote:
> > > Brian West wrote:
> > >
> > > >Repeat after me... WARNING != ERROR.  This is just letting you know that
> > it
> > > >walked the channel list and did avoid a dead lock by not trying to grab a
> > > >lock on a channel that's already locked.
> > > >
> > > >            if (ast_mutex_trylock(&l->lock)) {
> > > >                if (retries < 10)
> > > >                    ast_log(LOG_DEBUG, "Avoiding initial deadlock for
> > > >'%s'\n", l->name);
> > > >                else
> > > >                    ast_log(LOG_WARNING, "Avoided initial deadlock for
> > '%s',
> > > >%d retries!\n", l->name, retries);
> > > >
> > > >
> > > >Read the code it tells you... channel.c
> > > >
> > > >bkw
> > > >
> > > >
> > > >
> > > >>I'd suggest posting a bug if you haven't already and if you have
> > purchased
> > > >>any Digium products I would recommend calling them as well. The
> > > >>ast_channel_walk_locked error is a rare and hard to diagnose problem and
> > > >>the
> > > >>bug trackers and Digium would be the best people to help you.
> > > >>
> > > >>
> > > >
> > > >
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