On Fri, 5 Oct 2007 15:02:22 -0400, John Stoffel wrote:

How much memory does this system have?  Have you checked the output of

2GB

/proc/mtrr at all?  There' have been reports of systems with a bad

$ cat /proc/mtrr 
reg00: base=0x00000000 (   0MB), size=2048MB: write-back, count=1

BIOS that gets the memory map wrong, causing access to memory to slow
down drastically.

BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000007fff0000 (usable)
 BIOS-e820: 000000007fff0000 - 000000007ffff000 (ACPI data)
 BIOS-e820: 000000007ffff000 - 0000000080000000 (ACPI NVS)
 BIOS-e820: 00000000ff780000 - 0000000100000000 (reserved)


full dmesg (from 2.6.21-rc8-git2) at
http://digital-domain.net/kernel/sw-raid5-issue/dmesg

So if you have 2gb of RAM, try booting with mem=1900m or something

Worth a shot.

like that and seeing if things are better for you.

Make sure your BIOS is upto the latest level as well.

Hmm, I'll see whats involved in that.
 

John

Cheers,

Andrew