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PoolMon: MmCm tag - High nonpaged memory pool usage

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Old 14-09-2007
martin.necas@gmail.com
 
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PoolMon: MmCm tag - High nonpaged memory pool usage

Dear all,

I am troubleshooting an server with high nonpaged memory pool usage.
It is an HP Proliant DL380 G5 server with 4 GB of physical RAM. I am
running the Microsoft Exchange Server 2003, therefore I am have to run
under /3GB boot.ini switch. So I am limited do ~125 MB of nonpaged
memory pool maximum. I am running at about 105 MB of used nonpaged
memory pool, I worry about the stability.

When I start the PoolMon, it shows that 40 MB of nonpaged pool is
using the MmCm tag, which belongs to the nt!mm driver and "Calls made
to MmAllocateContiguousMemory". This is the biggest usage, all others
are about 1-2 MB. How can I determine, which driver(s) is allocating
so much memory? Or are there any chance to get this kind of
information?

Thank all

--
Martin Necas


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