[Asterisk-Users] G.729a beta codec on old Pentiums - FIXED

[Christopher Lee]

Hi All,

 

Just thought I'd provide a quick summary on this thread as the problem is
now resolved.

 

I didn't actually hear what the cause of the problem was as Digium shelled
into my machine last night (Australian time GMT+10 here :-) and installed
the codec and checked the license registration for me.

 

Today I decided to replace the old g729 codec with the G.729 beta codec on
my local Asterisk box, and noticed that the Digium FTP server now has
different codecs for each different platform (athlon, i586, i686 etc). I
grabbed the codec in the athlon directory since the local machine is an
Athlon XP 1800+ and went ahead and registered the codec without any
problems, and restarted Asterisk and all is working fine.

 

I'm happy to report the beta g729 codec appears to be working nicely here
with the Cisco 7940 (SIP 7.1 firmware) and over IAX2 to my remote Asterisk
box, both boxes are running the latest CVS-HEAD (as at 28/05/04).

 

Cheers,

Chris Lee

 

  _____  

From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Christopher Lee
Sent: Saturday, 22 May 2004 12:29 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] G.729a beta codec on old Pentiums

 

Hi,

 

I've been trying to get the G.729a beta codec running with my remote
Asterisk box that talks IAX2 to my local Asterisk box.

 

Digium fixed the problem I was having in registering the beta codec, so that
now works fine. I've removed the old codec_g729b.so from
/usr/lib/asterisk/modules and put in place the codec_g729a.so beta from
digium FTP. My CVS build of Asterisk is about a day old now.

 

Everytime I try to execute /usr/sbin/safe_astersik with codec_g729a.so in
place, it crashes and core dumps, not giving much indication of what's
happening.

 

I tried executing Asterisk directly with /usr/sbin/asterisk -cvvvvvvg to get
as much verboseness as possible, and have cut the last few lines (host ID
and license intentionally blanked out):-

 

[format_g729.so] => (Raw G729 data)

 == Registered file format g729, extension(s) g729

[codec_g729a.so] => (Annex A/B (floating point) G.729/PCM16 Codec
Translator)

 == G.729 Host-ID: **masked**

 == Found license '**masked**' providing 2 channels

 == Found total of 2 G.729 licenses

Illegal instruction (core dumped)

 

The machine this is running on is rather old - it's a Pentium MMX (166Mhz
according to Linux, I thought it was a 200Mhz but I'm remote to the machine
at the moment so I can't watch the BIOS boot to see).

 

This is probably just a shot in the dark, but could this be related to the
F00F bug in the older Pentiums? Has anyone else got the beta g729a codec
running successfully on an older Pentium machine?

 

Linux /proc/cpuinfo reports the following:-

 

:~$ cat /proc/cpuinfo

processor       : 0

vendor_id       : GenuineIntel

cpu family      : 5

model           : 4

model name      : Pentium MMX

stepping        : 3

cpu MHz         : 167.049

fdiv_bug        : no

hlt_bug         : no

f00f_bug        : yes

coma_bug        : no

fpu             : yes

fpu_exception   : yes

cpuid level     : 1

wp              : yes

flags           : fpu vme de pse tsc msr mce cx8 mmx

bogomips        : 333.41

 

Thanks,

Chris Lee

 

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