Greg Madden wrote: ...
John Schmidt <[EMAIL PROTECTED]> wrote:
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I have two IDE drives ... the motherboard is quite old.
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I get the following error messages from dmesg:
...>> hde: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hde: dma_intr: error=0x84 { DriveStatusError BadCRC } ide: failed opcode was: unknown hde: dma_timer_expiry: dma status == 0x20 hde: DMA timeout retry PDC202XX: Primary channel reset. PDC202XX: Secondary channel reset. hde: timeout waiting for DMA hde: dma_timer_expiry: dma status == 0x21 hde: DMA timeout error hde: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest } ide: failed opcode was: unknown
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What would be the source of these errors and how should I go about fixing them?A couple of things, the generic IDE driver doesn't do dma , make sure you load the module for your chipset. Using 'hdparm' will show if dma is set for the drives.
Greg: Clearly John's driver is doing DMA; otherwise all the DMA errors wouldn't be present. John: Which motherboard do you have? I have had similar problems with an Asus A7M266-D motherboard with multiple kernel versions (2.2 through 2.6, I think). From what I've been able to gather, my motherboard's IDE controller (AMD 768?) is buggy, and the Linux kernel doesn't do whatever the Windows kernel does to work around the problem. (I can't run the disks attached to the onboard IDE controller at full sped (i.e., with DMA on) or I get extreme filesystem corruption in Linux. Under Windows, I can run a seemingly full speed without any data- corruption problems.) Daniel --To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
