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Thread: Re: FSI TX200 S2 and main memory > 4 GB




Re: FSI TX200 S2 and main memory > 4 GB
user name
2007-06-21 07:03:08
Hi,

we saw this Error ORA-7445 without memory > 4 GB.

kind regards,

Toni

>
> With a similar setup (indirect_data_buffers), we're
getting random  
> ORA-07445
> errors.  These appeared after we have changed to VLM.
>
> We have opened a SR with Oracle and they said that the
errors are  
> caused by
> the stack not being able to grow down anymore.  That is
grow  
> towards lower
> memory addresses.
>
> They have recommended we lower the mapped base.
>
> In a RAC environment this can be done with a messy
kludge.
>
> My question is, does everything appear to be running
well on your  
> machine?
>
>
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Re: FSI TX200 S2 and main memory > 4 GB
user name
2007-06-21 08:02:03
On Thursday 21 June 2007 03:03:08 pm Anton Dischner wrote:
> Hi,
>
> we saw this Error ORA-7445 without memory > 4 GB.

ORA-07445 is a generic error, that can appear for various
reasons.  I was 
interested to know if Damien ever seen this error, because
he described a 
configuration similar to ours:

32 bit x86 (Xeon)
16 GB RAM
VLM and hugepages
(~2.1 GB buffer cache + 1.09 GB shared pool) in ~3.34 GB
total SGA

As I was saying the error appeared after we have changed to
VLM.

The solution Oracle gave us feels "dirty".


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