[asterisk-users] Asterisk 1.4.0-beta3 spandsp rxfax woes (or me being hard of thinking)

[Steve Davies]

The only time I have seen this problem myself is when Asterisk (and
therefore rxfax) was built when the wrong spandsp header/library files
were present on the system.

The required order of events is:

1) Build spandsp
2) Install both spandsp binary libraries and includes, ensuring no old
versions are present.
3) Rebuild asterisk from scratch
4) Profit... :)

If that doesn't work, then there may be a more fundamental problem.
Someone did comment a while back that the new code seemed to be
freeing an already free chunk of memory - Perhaps Asterisk has changed
behaviour and is freeing something that the app used to be required to
clean up itself - AFAIK, the workaround was to comment out the "free"
that caused the crash in app_rxfax.c.

Cheers,
Steve

On 12/8/06, Matt Gibson <diwelf at gmail.com> wrote:
> Update on this -
>
> I tried with the newest spandsp on the snapshots site still to no
> avail. I also ensured no other copies of spandsp exist, and adding
> SPANDSP_LIBS=-lspandsp to makeopts, but still getting the segfault
> when rxfax is called.
>
>
>
> On 07/12/06, Matt Gibson <diwelf at gmail.com> wrote:
> > Same thing occuring here, on gentoo as well :(
> >
> >
> > On 07/12/06, Chris Glover <chris at glovercc.plus.com> wrote:
> > > Hi,
> > >
> > > I have installed the latest version of asterisk(1.4.0-beta3), and built
> > > app_rxfax/txfax. I'm using spandsp from here,
> > >
> > > http://www.soft-switch.org/downloads/snapshots/spandsp/spandsp-20061207.tar.gz
> > >
> > > Everything builds ok. I had to manually apply the patch from the site so
> > > configure would spot spandsp libraries. However, when I try dialing my
> > > virtual fax extension (either from a phone or fax machine) Asterisk
> > > bombs out with the following message...
> > >
> > > Executing [402 at default:1] RxFAX("SIP/101-081d63d0", "/tmp/test.tif") in
> > > new stack
> > > asterisk: symbol lookup error: /usr/lib/asterisk/modules/app_rxfax.so:
> > > undefined symbol: span_set_message_handler
> > >
> > > This was me dialing from a normal sip extension, hoping to hear fax
> > > tones. I did try the latest ebuild Gentoo have (1.2.13), this gave me
> > > perfect fax tones, but completely refused to include chan_zap, so I
> > > can't win :-)
> > >
> > > Please somebody tell me where I'm going wrong, been trying to get this
> > > to work for hours. I've got rid of all the old libraries, recompiled...
> > > my next step is to sacrifice a goat!
> > >
> > > Any help greatly appreciated.
> > >
> > > Chris
> > >
> > > --
> > > Chris
> > > ----------------------------------
> > > E Mail: chris at glovercc.plus.com
> > > SIP: 84411389 at voiptalk.org
> > > IAXTEL: 17003366726
> > >
> > >
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