chan_ss7 MTP is now Down after 70 calls.

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CPU:  Dual Intel(R) Xeon(R) CPU           X5650  @ 2.67GHz

2 Times ( CPU has 6 cores)


Memory: 3 GB

ASUS Z8PE-D12X ? Motherboard

TE410P

Load is never above the 0.5 out of 24 available.

Asterisk takes like 130% of CPU time.

About interrupts I'll check that during load hours. This is a test run
running right now.

root at ostional:~# dahdi_test
Opened pseudo dahdi interface, measuring accuracy...
99.986% 99.985% 99.984% 99.980% 99.982% 99.987% 99.983% 99.981%
99.987% 99.983% 99.983% 99.984% 99.982% 99.984% 99.984% 99.983%
99.981% 99.984% 99.985% 99.986% 99.978% 99.984% 99.986% 99.979% ^C
--- Results after 24 passes ---
Best: 99.987 -- Worst: 99.978 -- Average: 99.983408, Difference: 100.016591

A look at the proc interrupts now

root at ostional:~# cat /proc/interrupts
            CPU0       CPU1       CPU2       CPU3       CPU4
CPU5       CPU6       CPU7       CPU8       CPU9       CPU10      CPU11
CPU12      CPU13      CPU14      CPU15      CPU16      CPU17      CPU18
CPU19      CPU20      CPU21      CPU22      CPU23
   0:         33          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0   IO-APIC-edge      timer
   1:          2          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0   IO-APIC-edge      i8042
   8:          1          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0   IO-APIC-edge      rtc0
   9:          0          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0   IO-APIC-fasteoi   acpi
  12:          4          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0          0          0
0          0          0          0          0   IO-APIC-edge      i8042
  16:      11246          0          0          0          0
0          0          0       9998          0          0          0
0          0          0          0          0          0          0
0    1856235          0          0          0   IO-APIC-fasteoi
uhci_hcd:usb3, uhci_hcd:usb8, pata_it8213, wct4xxp
  17:      11244          0          0       9998          0
0          0          0          0          0          0          0
0          0          0    1856225          0          0          0
0          0          0          0          0   IO-APIC-fasteoi   wct4xxp
  18:         66          0          0          0          0
0          0          0          0          0          0          0
0

On Tue, Jun 28, 2011 at 3:18 AM, Krzysztof Drewicz <
krzysztofdrewicz at gmail.com> wrote:

>
>
> 2011/6/28 Robert Thomas <thomcr at gmail.com>
>
>> Hello Everyone,
>>
>>
>> We have a 7 E1 SS7 linkset that above 70 calls load starts to flap
>> constantly. The MTP goes down, and comes back after 10 seconds or so.
>>
>
>
>> Could this because of line errors, slips or problems on the line? How
>> could we check that from the asterisk side?
>>
>
>
> Too much load on asterisk box? If you have Digum's card there is a tool
> that checks how accurately hardware interrupts are being handled / routed
> 1st check the /proc/interrupts file,
> 2nd look for tool named zttest it should yeald at least 99.98 %
>
> This is no slip problem, as if i got it correct: if you don't run any
> calls, your digital lines are stable (no alerts etc...)
>
> What kind of hw you have there ?
>
> --
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-- 
Robert
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