Messages in this thread |  | | Subject | Re: Linux SMP kernel bug with > 512M ram | From | Alan Cox <> | Date | 06 Sep 2002 18:07:08 +0100 |
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On Fri, 2002-09-06 at 17:55, jeff@AmeriCom.com wrote: > I've been having problems with a few of our servers and I can't seem to find this > problem mentioned anywhere else. All of the dual processor machines will not operate > with greater than 512 megs of ram with the newer SMP kernels (2.4.7-10enterprise #1
2.4.7 is hardly "new". Red Hat has issued errata kernels going up to 2.4.9.
> SMP). Two of the dual P3 1ghz machines crash after a few minutes, when the memory > usage gets high enough, I presume. The errors they spit out vary, but its only when > I go over 512megs of ram, and only on dual processor machines. I had a slightly
Chipset or memory hardware problems seem the most likely cause if the errors seem random or weird
> different problem when I tried to set it up on a dual p2 266 machine, when I go over > 512 megs there, the system takes an hour to boot up, and everything crawls from
Thats BIOS. Thats a well known BIOS problem where the BIOS doesnt configure the mtrr registers properly. You can work around that one by tweaking the settings by hand or probably by getting a newer BIOS
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