[Gllug] Crashing server diagnostics

[Andy Farnsworth]

Andy Farnsworth wrote:
> Karanbir Singh wrote:
>   
>> Andy Farnsworth wrote:
>>   
>>     
>>> After tracking down a bit more of the error, it seems that it is 
>>> asterisk is not shutting down before the reboot and the zaptel driver 
>>> won't unload.  If I manually shutdown asterisk first, the reboot works 
>>>     
>>>       
>> this rings a bell somewhere...
>>
>> what version of asterisk and what kernel are you using ? I recall there was a 
>> zaptel driver issue in the 4.3 / 4.2 days. Also what sort of i/o subsys do you 
>> have there ?
>>   
>>     
> Asterisk version is from Trixbox v2.2 install CD.  Fairly recent, but 
> not positive which version and my machine is currently running memtest 
> so I cannot check it right now.
>
> The box is running 2.5 Gb RAM, an Athlon XP running at 1.6 Ghz, a brand 
> new Seagate 500 Gb SATA HD.  Interestingly, I have never been conscious 
> of the bandwidth available to the various caches and memtest is showing 
> the following for this fairly old system:
>
> L1 Cache: 128k 10209MB/s
> L2 Cache: 256k  3250MB/s
> Memory: 2560M 1015MB/s
>
> This seems to indicate that on the Athlon XP platform, you have a 
> Gigabye of bandwidth to RAM, 3 Gigabyte bandwidth to the L2 Cache and 10 
> Gigabytes of bandwidth to the L1 cache.  Since PCI (32 bit/ 33 Mhz) 
> gives you about a Gigabit of bandwidth total to the periferals, this is 
> fairly quick.  I might have to run this CD on my desktop machine which 
> is an Athlon 64 and see what it reports in the way of Memory bandwidth 
> there.
>
> Andrew
>   

Well memtest86 reported a memory error on the box, I have reduced the 
RAM and I am rerunning the test.  Thanks for that suggestion.

Just for completness I ran it on my 2Ghz Athlon 64 and got the following 
memory bandwidths:

L1 Cache: 128k 16478MB/s
L2 Cache: 256k  3926MB/s
Memory: 2560M 2014MB/s

Andrew


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