Messages in this thread | | | Date | Tue, 25 Feb 2003 02:37:31 -0600 | From | Krishnakumar B <> | Subject | Re: Linux 2.4.20, Athlon MP and Promise PDC20276 IDE controller |
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On Tuesday, 25 February 2003, Peter Nome wrote: > > Hi Krishnakumar, > > "Am I right in assuming that Linux doesn't enable DMA on this controller? > How do I determine if DMA is enabled for a ide controller apart from > relying on the boot message?" > > As you suspect, you're getting DMA all right -- you see it in the boot > message too, as UDMA(133). To confirm, issue > > hdparm /dev/hde > > Looks good!
Great ! It is good to hear. Do you know why my machine reboots every other time (only when booting up; I haven't seen it reboot, once up and running) when booting SMP kernels ? I tried using kernel-2.4.20 and it too exhibits the same behaviour.
Is there some setting in BIOS that I got wrong ? I am not into any overclocking business, as these are meant to be used by my prof and other folks, who care a lot about a stable system than anything else.
Will using mem=nopentium solve the problem and is it the right fix ? Will enabling/disabling ECC memory checking in the BIOS (the BIOS seems to do this when I select "Load Optimized Defaults") affect it ?
I seem to be a loss at narrowing down the problem to a single component as it seems to act according to it's own whims and fantasies. And the fact that things work with a UP kernel, makes me feel that it is not a hardware issue. Anyone else with the same hardware experience similar issues ?
Any help is appreciated.
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