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Re: Tru64 problems

From: Alex Gorbachev <>
Date: Sat, 10 Nov 2007 14:28:46 -0500
Message-ID: <>

I take it you have already searched Metalink on ORA-600 and ORA-7445 with respective arguments using ORA-600 Lookup Tool. What are the arguments of ORA-600 that you get?

On Nov 7, 2007 8:31 PM, <> wrote:
> We have a vexing problem at the moment which I felt might warrant posting.
> We have a HP Tru64 Alpha machine which until recently was a hard working
> machine supporting between 10 and 20 instances.
> The machine is 16 processor GS class server with 16 GB of memory.
> Recently, the instances have one or another of the background processes
> (pmon, smon, dbwr) fail crashing the instances.
> The background processes are failing with ORA-00600. Dedicated user
> connections are failing with ORA-07445. Neither has left much
> in the way of "conclusive" evidence.
> Instances are 9i (different revisions) and 10gR1.
> The machine isn't configured to support the 10gR1 properly (missing a O/S
> patchset) but the 10gR1 instances (2) worked before.
> We did have some hardware change in the device but the problem occurred
> before the hardware change. We also had some
> disk issues but those appear to be resolved as well. Sys Admins say there
> is nothing in the log that indicates hardware issues.
> We've been thinking fairly "outside the box" on this; to that end, we have:
> - relinked all the binary sets
> - built a new kernel and relinked all the binary sets
> We are considering:
> - setting an event to capture further detail - at this point, unsure
> specifically of what event to set - still researching
> - perhaps running truss on one of the background processes in hopes of
> getting more information
> - applying the missing O/S patchset to allow the 10gR1 to be properly
> supported - this will require another relink
> If you have any ideas, I would appreciate them as this is knawing at the
> insides of everyone involved.
> Thank you,
> Stephen de Vries --

Alex Gorbachev, Oracle DBA Brewer, The Pythian Group
BAAG party -
Received on Sat Nov 10 2007 - 13:28:46 CST

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