Hi Jörg,
Joerg Barfurth schrieb:
[...]
>>> AFAIK a fix for this bug is expected in the next release of the SRSS
>>> patch.
>>>
>>> Are your servers multi-homed?
>>
>> What exactly do you mean by multi-homed?
>>
>
> That they have multiple network interfaces on different subnets (that
> aren't Sun Ray interconnects).
Yes, all our servers have multiple network interfaces. In fact, most of
them have only the LAN connections turned on without an explicit
configuration of a Sun Ray interconnect with DHCP and so on. The normal
output of utgstatus is something like the following (where I manually
hide the official IP of the servers):
hostflags interface flags interface flags
x.x.x.x/16 192.168.128.0/24
--------- ------------------- -------------------
kati TN x.x.x.x UA- 192.168.128.2 UA-
titan TN x.x.x.x UA- 192.168.128.7 UA-
saturn TN x.x.x.x UA- 192.168.128.6 UA-
>>> Does the crash occur while allocating or deallocating memory?
>>
>> As I said earlier, I haven't had the time yet to investigate this
>> further. So I can't tell if it happens when allocating or deallocating
>> memory. All I do is restart one of the SRSS in a FOG and suddenly after
>> some minutes the others in the group lose their connection to the
>> sunrays.
>>
>
> This matches what I have been observing.
>
> If this requires a (warm) utrestart to recover, this probably is a crash
> of utauthd. It would be useful, if you could get a core file for utauthd
> and show us the stack at which the crash occurs. Without this, we can
> only guess, if you see the same problem.
If you can instruct me how to create such a core dump in a
running/productive SRSS environment, or if you can tell me where the
core dumps of utauthd are normally stored I can have a look and try to
send them over to you.
cheers,
jens
--
Jens Langner Ph: +49-351-2602757
Forschungszentrum Dresden-Rossendorf e.V.
Institute of Radiopharmacy - PET Center [email protected]
Germany http://www.fzd.de/
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