[Asterisk-Users] E1 PRI slips on TE410P

[George]

Hi Nir,

The wct4xxxp is in a different IRQ than ide0 and ide1 but the issue 
is that you have enabled the APIC (which extends the IRQ table). In 
reality  the card might share IRQ with another device. My advice is 
to disable APIC and then check again what IRQ the card gets. If you 
see that the card shares an IRQ with another device try if its 
possible to disable this device , for example USB.

George

At 10:42 AM 2005-11-15, Nir Simionovich - CTO wrote:
>Hi All,
>
>   I've recently encountered a very funny problem, which wasn't happening in
>the past. I will describe this in detail:
>
>During the past 4 weeks, our production Asterisk box had been experiencing
>PRI (E1 lines) slips over and over at random intervals. When digging into
>the available information and debug logs, I've noticed HDLC hang-ups,
>followed by a complete reset of the line.
>
>   Now, according to the lists and wiki, this is most probably caused by an
>IRQ issue between the TE410P and the onboard IDE controller. So, I looked
>into /proc/interrupts to find the following:
>
>[root at ivr00 root]# cat /proc/interrupts
>            CPU0       CPU1
>   0:  196927300        456    IO-APIC-edge  timer
>   1:          2          0    IO-APIC-edge  keyboard
>   2:          0          0          XT-PIC  cascade
>   8:          1          0    IO-APIC-edge  rtc
>  14:    6152062         22    IO-APIC-edge  ide0
>  15:        137          1    IO-APIC-edge  ide1
>  16:          0          0   IO-APIC-level  usb-uhci
>  18:          0          0   IO-APIC-level  usb-uhci
>  19:          0          0   IO-APIC-level  usb-uhci
>  20:   21986877         21   IO-APIC-level  eth0
>  54: 1965865547       4505   IO-APIC-level  wct4xxp
>NMI:          0          0
>LOC:  196918032  196918689
>ERR:          0
>MIS:          0
>
>   As you can surely see, the wct4xxp driver and the ide0 and ide1 are
>totally on different interrupts. The IDE drives are also set to do UDMA2,
>as described in many other places.
>
>   The board is a Dual XEON 2.8Ghz Intel board, with 1GB RAM and a single
>IDE 80GB Hard drive.
>
>   Any input would be highly appreciated.
>
>Regards,
>   Nir S
>
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