Messages in this thread | | | From | "Bill Church" <> | Subject | PROBLEM: PIIXn DMA errors | Date | Wed, 10 Sep 2003 14:03:52 -0400 |
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I'm reposting this because I never saw it come through, if it's duplicate I apologize in advance... Also, I saw *some* mention about a similar issue in the archives which mentioned that 2.4.22 would fix this problem, but doesn't seem to work for me. :(
I have a GigaByte GA-8IGX with an Intel 845G chipset.
Two new Hitachi 180GXP 80G DeskStar drives. Both set as master on two ATA/100 channels (/dev/hda and /dev/hdc).
P4 2.53 Processor at 533FSB
2 Sticks of 512MB Corsair 333MHz DDR Ram
My issue:
Started out with Gentoo gs-sources Kernel (2.4.22_pre2-gss). When I would boot with both drives connected, /dev/hdc would timeout and hang when enumerating the partitions. If I disabled DMA, the system would boot with out error. I disabled ACPI also, but that seemed to have no effect.
I reverted to the vanilla-sources Kernel (2.4.22) with the same config file and experienced the same results. However, /dev/hdc would time out several times but no hang. Upon investigation I found that /dev/hda had DMA enabled but /dev/hdc had DMA disabled. So with hdparm I enabled dma on /dev/hdc and tried some operations on that drive. Just an fdisk /dev/hdc produced timeouts. Checking hdparm again on /dev/hdc revealed that it was again disabled.
I then tried setting both drives on the same channel, manually setting master on one drive and slave on another. Same issues as before. I also tried swapping cables and drive positions. Moving /dev/hdc drive to /dev/hda and vice-versa.
So I decided to revert to 2.4.20, I experienced the same results as did originally (time out on /dev/hdc to lockup).
I then decided to try 2.6.0-test4, same results...
I am using 80 conductor 40 pin ATA-100 cables. And I'm using the PIIXn option under ATA/IDE/MFM/RLL support.
Thanks in advance...
-Bill bill at bsius dot com
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