[asterisk-users] TE412P (T1/E1+DSP) digium card cause server crash

[Ian Wang]

Hi all

I have a server that has two TE412P (T1/E1+DSP) cards installed. One of them
configured as an E1 PRI connected to PSTN and another one configured as a T1
E&M connected to Avaya PBX. Each card only uses two ports, so there are 2 E1
lines and 2 T1 lines connecting to this server. The purpose of this server
is as a TDM trunk gateway that gets call from E1/T1 and then forward to an
IP-PBX via SIP, or gets call from an IP-PBX and forward to E1/T1 via SIP.

Unfortunately, the server crashed (serve dead/card hanged) often when
traffic is high (E1 + T1 about 50~70 active channels). Is it zaptel driver
issue? The server loading actually is not so high before crash.

I've been investigating this issue for weeks and I'm totally out of ideas,
so any help or suggestions anyone could provide would be greatly
appreciated…

Best regards
Ian
The following is my server configuration detail:
No IRQ shared and BIOS setting looks good!
CPU: INTEL Xeon 3.2GHz 800FSB 2MB cache *2
Memory: 512M ECC REG DDRII400 * 2 (1G)
Storage: 3ware SATA RAID 0 card /80G SATA HD *2
OS: Linux 2.6.11-gentoo-r6
Asterisk 1.2.1 + libpri-1.2.3 + Zaptel 1.2.16
Zaptel configuration:
-------------------------------
### Zaptel.conf --> Span: 1 (E1_4) Board 1
span=1,1,0,ccs,hdb3
bchan=1-15
dchan=16
bchan=17-31
### Zaptel.conf --> Span: 2 (E1_4) Board 1
span=2,1,0,ccs,hdb3
bchan=32-46
dchan=47
bchan=48-62
### Zaptel.conf --> Span: 3 (E1_4) Board 1
span=3,1,0,ccs,hdb3
bchan=63-77
dchan=78
bchan=79-93
### Zaptel.conf --> Span: 4 (E1_4) Board 1
span=4,1,0,ccs,hdb3
bchan=94-108
dchan=109
bchan=110-124
### Zaptel.conf --> Span: 5 (T1_4) Board 2
span=5,0,0,esf,b8zs
e&m=125-148
### Zaptel.conf --> Span: 6 (T1_4) Board 2
span=6,0,0,esf,b8zs
e&m=149-172
### Zaptel.conf --> Span: 7 (T1_4) Board 2
span=7,0,0,esf,b8zs
e&m=173-196
### Zaptel.conf --> Span: 8 (T1_4) Board 2
span=8,0,0,esf,b8zs
e&m=197-220
# Global data
loadzone = tw
defaultzone = tw

Zapata configuration:
-------------------------------
; Call ID Feature
hidecallerid=no
usecallingpres=yes
usecallerid=yes
callerid=asreceived
restrictcid=yes

; Calling Record
amaflags=billing

; Call Function
callwaiting=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=no
callreturn=yes
musiconhold=default
overlapdial=no
relaxdtmf=yes
immediate=no

; Echo Setting
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
rxgain=2
txgain=-2

context=fxo_incoming
;### Span: 1 (E1_4) Board 1
switchtype=euroisdn
signalling=pri_cpe
group=1
channel => 1-15
channel => 17-31
;### Span: 2 (E1_4) Board 1
switchtype=euroisdn
signalling=pri_cpe
group=1
channel =32-467
channel =48-62
;### Span: 3 (E1_4) Board 1
switchtype=euroisdn
signalling=pri_cpe
group=1
channel =63-77
channel =79-93
;### Span: 4 (E1_4) Board 1
switchtype=euroisdn
signalling=pri_cpe
group=1
channel =94-108
channel =110-124

context=pbx_incoming
;### Span: 5 (T1_4) Board 2
signalling=em
group=2
channel => 125-148
;### Span: 6 (T1_4) Board 2
signalling=em
group=2
channel => 149-172
;### Span: 7 (T1_4) Board 2
signalling=em
group=2
channel => 173-196
;### Span: 8 (T1_4) Board 2
signalling=em
group=2
channel => 197-220
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