Messages in this thread |  | | Date | Sat, 18 Jan 2003 00:16:49 -0800 | From | William Lee Irwin III <> | Subject | Re: [patch] sched-2.5.59-A2 |
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At some point in the past, I wrote: >> I suspect some of these results may be off on NUMA-Q (or any PAE box) >> if CONFIG_MTRR was enabled. Michael, Martin, please doublecheck >> /proc/mtrr and whether CONFIG_MTRR=y. If you didn't enable it, or if >> you compile times aren't on the order of 5-10 minutes, you're unaffected. >> The severity of the MTRR regression in 2.5.59 is apparent from: >> $ cat /proc/mtrr >> reg00: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1 >> reg01: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1
On Sat, Jan 18, 2003 at 12:12:31AM -0800, Martin J. Bligh wrote: > Works for me, I have MTRR on. > larry:~# cat /proc/mtrr > reg00: base=0xe0000000 (3584MB), size= 512MB: uncachable, count=1 > reg01: base=0x00000000 ( 0MB), size=16384MB: write-back, count=1
Okay, it sounds like the problem needs some extra RAM to trigger. We can bounce quads back & forth if need be, but I'll at least take a shot at finding where it happened before you probably need to look into it.
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