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Moises,<br>
<br>
Sure. I'll test it. Are you confident no changes were made that
could fix this from 1.3.1 -> 1.3.2 ? I just upgraded, not enough
time to notice if this is fixed.<br>
<br>
Could this be a TDM card driver bug ? How does the DAHDI driver
passes CAS bit changes to userland (change notifications, or
userland constantly polls the bits and compare with the prior value)
? Perhaps could the driver be failing to pass changes in the bits to
userland right after the alarm clears, keeping some corrupted state
read during the alarm. Its interesting that 80+% of times this
happens, only 3-6 channels get blocked with 0xC.<br>
<br>
Marcelo<br>
<br>
On 01/10/12 20:42, Moises Silva wrote:
<blockquote
cite="mid:CAA4nhyCYxV51AGF4BaHkyjytpLUZoFbaMVU=i11ih+mdWUDfAQ@mail.gmail.com"
type="cite">
<div class="gmail_quote">On Tue, Jan 10, 2012 at 5:30 PM, Marcelo
Pacheco <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:marcelo@m2j.com.br">marcelo@m2j.com.br</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
I have the following chan_dahdi.conf (asterisk 1.6.2.18 /
dahdi 2.3.0.1 / openR2 1.3.1):<br>
<br>
[channels]<br>
usecallerid=yes<br>
echocancel=no<br>
echocancelwhenbridged=no<br>
<br>
signalling=mfcr2<br>
mfcr2_variant=br<br>
mfcr2_forced_release=no<br>
mfcr2_get_ani_first=no<br>
mfcr2_category=national_subscriber<br>
mfcr2_allow_collect_calls=yes<br>
mfcr2_double_answer=no<br>
<br>
context=entrada<br>
group=1<br>
mfcr2_max_ani=14<br>
mfcr2_max_dnis=4<br>
channel => 1-15,17-21<br>
<br>
context=geral<br>
group=2<br>
mfcr2_max_ani=4<br>
mfcr2_max_dnis=16<br>
channel => 32-46,48-52<br>
<br>
And the following /etc/dahdi/system.conf<br>
<br>
span=1,1,0,cas,hdb3<br>
span=2,0,0,cas,hdb3<br>
span=3,0,0,esf,b8zs<br>
span=4,0,0,ccs,hdb3<br>
cas=1-15,17-21:1101<br>
cas=32-46,48-52:1101<br>
fxoks=63-86<br>
bchan=87-101,103-117<br>
dchan=102<br>
echocanceller=mg2,1-15,17-21,32-46,48-52,63-86<br>
loadzone = us<br>
defaultzone=us<br>
<br>
<br>
/etc/asterisk/chan_dahdi.conf (removed the comments to save
space)<br>
<br>
[channels]<br>
usecallerid=yes<br>
callwaiting=no<br>
usecallingpres=yes<br>
callwaitingcallerid=yes<br>
threewaycalling=yes<br>
transfer=yes<br>
canpark=yes<br>
cancallforward=yes<br>
callreturn=yes<br>
echocancel=yes<br>
echocancelwhenbridged=no<br>
<br>
group=1<br>
callgroup=1<br>
pickupgroup=1<br>
<br>
signalling=mfcr2<br>
mfcr2_variant=br<br>
mfcr2_forced_release=no<br>
mfcr2_get_ani_first=no<br>
mfcr2_category=national_subscriber<br>
mfcr2_max_ani=14<br>
mfcr2_max_dnis=4<br>
mfcr2_allow_collect_calls=yes<br>
context=entrada<br>
group=1<br>
channel => 1-15,17-21<br>
<br>
mfcr2_max_ani=8<br>
mfcr2_max_dnis=16<br>
context=geral<br>
group=2<br>
channel => 32-46,48-52<br>
<br>
<br>
switchtype=euroisdn<br>
signalling=pri_net<br>
group=4<br>
context=geral<br>
channel => 87-101,103-117<br>
<br>
<br>
Frequently, after we get an alarm and the alarm clears, some
or all channels are left with Rx CAS 0xC state.<br>
Reloading dahdi solves the issue, but it's extremely
undesirable since this condition might leave no channels or
very few channels in operable state for usage until restarting
dahdi (and restarting dahdi kills all active dahdi calls). I
just upgraded to OpenR2 1.3.2, but I saw nothing on the
ChangeLog that might fix this.<br>
<br>
</blockquote>
<div><br>
</div>
<div>If you can reproduce this reliably and are willing to test
a patch, I can write one.</div>
<div><br>
</div>
<div>Can you reproduce the issue easily by unplugging/plugging
the cable multiple times to generate alarms?</div>
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style="font-size: 8pt; line-height: 12px;
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