DMA woes

2002-12-17 Thread Gregory Seidman
I'm working on a stock Dell Dimension 4500 running a testing/unstable mix. My disk access is appalling, entirely taking over the host processor for large reads and writes thus causing mouse pointer freezes (which should never occur on an interactive system). I am told that the way to fix this is

Re: DMA woes

2002-12-17 Thread Antoine Jacoutot
# hdparm -d1 /dev/hda /dev/hda: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted using_dma= 0 (off) You need to be root to do this... -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]

Re: DMA woes

2002-12-17 Thread Gregory Seidman
Antoine Jacoutot sez: } # hdparm -d1 /dev/hda } } /dev/hda: } setting using_dma to 1 (on) } HDIO_SET_DMA failed: Operation not permitted } using_dma= 0 (off) } } You need to be root to do this... Thank you, I know. And it was. I even indicated it by including the # prompt instead

Re: DMA woes

2002-12-17 Thread Michael P. Soulier
On 17/12/02 Gregory Seidman did speaketh: Thank you, I know. And it was. I even indicated it by including the # prompt instead of the % prompt. Is this a custom kernel? You need support for your IDE controller before this will work. See if it's recognized at boot by checking the dmesg

Re: DMA woes

2002-12-17 Thread Gregory Seidman
Michael P. Soulier sez: } On 17/12/02 Gregory Seidman did speaketh: } Thank you, I know. And it was. I even indicated it by including the # } prompt instead of the % prompt. } } Is this a custom kernel? You need support for your IDE controller } before this will work. See if it's recognized

Re: DMA woes

2002-12-17 Thread Christophe TROESTLER
On Tue, 17 Dec 2002, Gregory Seidman [EMAIL PROTECTED] wrote: # hdparm -i /dev/hda | grep -i dma IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} DMA modes: mdma0 mdma1 *mdma2 udma0 udma1 udma2 udma3 udma4 udma5 ^ Just a thought: should you not

Re: DMA woes

2002-12-17 Thread Nathan E Norman
On Tue, Dec 17, 2002 at 01:34:09PM -0500, Gregory Seidman wrote: Michael P. Soulier sez: } On 17/12/02 Gregory Seidman did speaketh: } Thank you, I know. And it was. I even indicated it by including the # } prompt instead of the % prompt. } } Is this a custom kernel? You need support

Re: DMA woes

2002-12-17 Thread Pigeon
On Tue, Dec 17, 2002 at 09:10:09AM -0500, Gregory Seidman wrote: Setting ide0=dma has no effect. I also added idebus=66 (which may or may not be correct, and I don't know how to find out), which had no noticeable effect. I think it should be ide0=ata34 (66, 67, depending on hd) idebus=66 is