[CentOS] 2.6 memory management question

[tblader]

Luciano Miguel Ferreira Rocha wrote:
> On Tue, Apr 10, 2007 at 12:44:31PM -0500, tblader wrote:
>> Thanks for breaking that down. No I'm not all that familiar with swap
>> details so it helps to have some insight. The box flatlined around 3am
>> on Monday morning and memused (sar) was around 96%.  All the swap space was
>> untouched.  Maybe every process running was active, and unable to be
>> swapped, so the box just up and died when a request came in to allocate
>> more ram.  I just don't have enough of an understanding of swap to say
>> that was what happened.  I do remember a day when you could heat a small
>> room with the swap activity generated on earlier 2.x kernels, but things
>> seem much different with 2.6.
> 
> It could be hardware related. Maybe the hardware doesn't like that
> memory module, or it has problems. Did you memtest+ all your memory?

Yep.  Haven't ruled that out yet.  I ran memtest for a weekend
straight on it and it said things were cool.  Someone did mention that
they weren't sure memtest ran in protected mode so it may not have been
able access all the ram (4G limit I guess?).  I fired up memtest again
after that and it listed the whole lot of ram in the stats so it would
seem it must have been able to test it.

-- 

Flambeau Inc. Technology Center - Baraboo, WI
Email    : tblader at flambeau.com
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