Messages in this thread | | | Subject | Re: Linux 2.4.21-pre3-ac3 and KT400 -high memory now works! | From | Edward Tandi <> | Date | 14 Jan 2003 21:49:03 +0000 |
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On Tue, 2003-01-14 at 01:43, Samuel Flory wrote: > Edward Tandi wrote: > > >I'm new to this list and most of the e-mail here seems to be very > >low-level, so I'm not so sure if this is the right forum for these kinds > >of questions -please do point me in the right direction... > > > >I am running Linux on an ASUS A7V8X, VIA KT400 chipset motherboard. The > >processor is a 1.5GHz Athlon XP. I started experimenting with new-ish > >kernels again because of the general lack of kernel support for this > >chipset in stock kernels. 3 questions below: > > > > > >1) I have 1GB ram, but I cannot get high memory support to work. It > >falls over during boot. I've seen discussions about AMD cache issues, > >but has it been fixed yet? Is it supposed to work? > > > Have you tried to forcing the amount of memory? Try something short > of you expected total. Maybe "mem=1000M".
OK, I tried this. If I set it to 800M it was OK. At 900M I got the same problem.
Due to the nature of the replies I have been getting, I suspected that the problem was with the IDE driver's initialisation. So I disabled the "Use PCI DMA by default" option in the kernel.
It booted with the full amount of high memory. Not only that, but "hdparm -X66 /dev/hda" after booting also works!
I can only conclude that there must be a bug in the IDE initialisation code for this board. Thanks for the replies,
Ed-T.
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