Messages in this thread | | | Date | Wed, 13 Feb 2002 11:05:32 -0800 (PST) | From | Eugene Chupkin <> | Subject | Re: 2.4.x ram issues? |
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On Tue, 12 Feb 2002, Andreas Dilger wrote:
> On Feb 13, 2002 02:00 +0000, Alan Cox wrote: > > > I have a problem with high ram support on 2.4.7 to 2.4.17 all behave the > > > same. I have a quad Xeon 700 box with 16gb of ram on an Intel SKA4 board. > > > The ram is all the same 16 1gb PC100 SDRAM modules from Crucial. If I > > > compile the kernel with high ram (64gb) support, my system runs very slow, > > > it takes about 15 minutes for make menuconfig to come up. If I recompile > > > the kernel with 4gb support, it runs perfectly normal and very fast, but I > > > have 12 gigs that I can't use. Is this a known issue? Is there a fix? I > > > tried just about everything and I am all out of options. Please help! > > > > Thats almost certainly indicating that the memory type range registers > > were not set up correcly by the BIOS. Check /proc/mtrr and also ask your > > vendor about BIOS updates to address the problem > > The other possibility with that much RAM is that the page tables are taking > up all of the low RAM. Andrea has a patch to put the page tables into > higmem in the recent -aa kernels.
I got it, the 2.4.18pre2aa2/pte-highmem-5 but I can't seem to figure out what to patch this on, I tried patching it on to 2.2.17, 2.2.18-pre1, and 2.2.18-pre2. On all those I get a Hunk failed. Any feedback is appreciated.
-E
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