[Freeswitch-users] BUG FIX: "Buffer size sanity check failed!" drops FAX receiving unneeded

[Anthony Minessale]

Can you please get a pcap of a single call (without your patch) as
well as a full capture of the freeswitch console logs and post it to
JIRA.

Are you using the described TDM inside FreeSWITCH or is this a SIP
call from an Asterisk machine?



On Mon, Apr 4, 2011 at 4:07 AM, Markus Mueller <freeswitch at priv.de> wrote:
> Hello FreeSwitch users and programmers,
>
> I found a problem on receiving faxes and want to share a working patch
> for this. The problem is that on receiving a fax, it is unneeded aborted
> by a sanity check. Sanity checks are fine, but a unneeded abort instead
> of a warning is in productive versions not the best solution.
>
> The message apearing is:
>
> 2011-04-04 10:44:52.060860 [CRIT] switch_core_codec.c:660 Buffer size
> sanity check failed!
>
> which is normaly aborting in receiving the fax. Simply decreasing this
> fault to a warning let the server receive the fax without any problems.
> After the patch the message apears up to five times per fax before the
> fax is beeing accepted. I am using libpri with the three HFC ISDN Cards
> and the DAHDI from Debian Squeeze 6.0. For more informations about my
> hardware just write me an email.
>
> Regards,
> Markus Mueller
> http://projekte.priv.de/
>
> root at sip:/usr/local/src/freeswitch/src# diff -U 4 switch_core_codec.c*
> --- switch_core_codec.c 2011-03-14 10:49:17.000000000 +0100
> +++ switch_core_codec.c.org     2011-03-14 10:47:02.000000000 +0100
> @@ -657,9 +657,9 @@
>                 uint32_t frames = encoded_data_len /
> codec->implementation->encoded_bytes_per_packet;
>
>                 if (frames &&
> codec->implementation->decoded_bytes_per_packet * frames >
> *decoded_data_len) {
>                         switch_log_printf(SWITCH_CHANNEL_LOG,
> SWITCH_LOG_CRIT, "Buffer size sanity check failed!\n");
> -                       // return SWITCH_STATUS_GENERR;
> +                       return SWITCH_STATUS_GENERR;
>                 }
>         }
>
>         if (codec->mutex) switch_mutex_lock(codec->mutex);
> root at sip:/usr/local/src/freeswitch/src#
>
>
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>



-- 
Anthony Minessale II

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