asterisk-app-fax crashes Asterisk

[beniwtv]

Hi all,

I have installed asterisk-app-fax from the repos, but every time I try to RxFax, Asterisk crashes after a few seconds (Segmentation fault).

Here's my config:
exten => _[a-zA-Z0-9].,1,Answer()
exten => _[a-zA-Z0-9].,2,RxFax(/tmp/file.tif)

Asterisk logs do not say anything either.

(NOTE: This is on Hardy LTS, fully up-to-date), Package version is: asterisk-app-fax [phone]

Found a Debian bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=479612. Might that apply to Ubuntu as well?

Strace:

0x7fff9a60593f, 1) = ? ERESTARTSYS (To be restarted)
--- SIGURG (Urgent I/O condition) @ 0 (0) ---
rt_sigaction(SIGURG, {0x422300, [URG], SA_RESTORER|SA_RESTART, 0x7f04913c4100}, {0x422300, [URG], SA_RESTORER|SA_RESTART, 0x7f04913c4100}, 8) = 0
rt_sigreturn(0x17) = 0
read(0, 0x7fff9a60593f, 1) = ? ERESTARTSYS (To be restarted)
--- SIGURG (Urgent I/O condition) @ 0 (0) ---
rt_sigaction(SIGURG, {0x422300, [URG], SA_RESTORER|SA_RESTART, 0x7f04913c4100}, {0x422300, [URG], SA_RESTORER|SA_RESTART, 0x7f04913c4100}, 8) = 0
rt_sigreturn(0x17) = 0
read(0, 0x7fff9a60593f, 1) = ? ERESTARTSYS (To be restarted)
+++ killed by SIGSEGV (core dumped) +++
Process 4404 detached

[enzo (jdespatis)]

I have the same problem as you

I have a fresh install of ubuntu 9.04, with :
* libspandsp1 0.0.5~pre4-1
* asterisk-app-fax [phone]ubuntu1

And each time I get a fax, RxFax is called and crashes Asterisk, I can see the last error:
    -- AGI Script Executing Application: (RxFAX) Options: (/tmp/asterisk_faxreceive.sourcerh.00007.00001.gEKVnS/fax.tiff)
asterisk: symbol lookup error: /usr/lib/asterisk/modules/app_rxfax.so: undefined symbol: t30_set_local_ident
Died at /usr/share/asterisk/agi-bin/receive_fax line 233, <stdin> line 21.

As a result I think asterisk-app-fax has been compiled with a wrong version of libspandsp

In fact, i've found somewhere this link which reports the compilation of asterisk-spandsp-plugins_0.0.20070624-2 as a success
http://www.linux-m32r.org/pipermail/build-status/Week-of-Mon-20080922/171649.html

However it shows warnings:
app_rxfax.c:288: warning: implicit declaration of function 't30_set_local_ident'

The compilation is thought to be good, but not at all, because it generates error when using RxFax

So I hope Ubuntu will upgrade soon compatible versions of asterisk-app-fax and libspandsp1, because for now, it's unusable...

[Ivan Bonacci (bons)]

i had experience on asteriskNow distro and often fighted with the faxoverip reliability

i compiled spandsp and also rx_fax and tx_fax with the same errors but they where working anyway

check the spandsp lib version in use is correspondig to the apps
and check the asterisk makefile patching procedure

http://www.asteriskguru.com/tutorials/spandsp.html

using app_rxfax.c, app_txfax.c and apps_makefile.patch

maybe same patching procedure will work for ubuntu