Re: ATA lost contact
On Wednesday, 5 January 2000 at 10:02:53 +0100, Søren Schmidt wrote: It seems Kris Kennaway wrote: On Wed, 5 Jan 2000, Soren Schmidt wrote: The disk probably has problems with DMA mode (lots of older WD disks has that). You only get WDMA2 mode since you controller is an older Intel PIIX that can't do UDMA... Hmm..This disk was bought in about March 99..you're sure that's the reason? No, but I've had my share of bad experiences with WD disks in that regard, I'll have to look up the modelnumber to be sure... I think the real issue is: did it work under DMA with the wd driver? If so, it should work with the at driver as well. Greg -- Finger [EMAIL PROTECTED] for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: ATA lost contact
It seems Kris Kennaway wrote: One of my Western Digital Caviars doesn't work under the new ATA driver: upon trying to access the disk (via swapon or mount during boot) it gives the famous "lost contact with disk" message and falls back to PIO mode. Interestingly, my two older WDCs work fine - although I notice that ad1 and ad2 are only detected as WDMA2, when it seems (from the udma=2) that they can handle UDMA - is this a cabling issue or something (I'm not familiar with IDE cabling requirements)? The disk probably has problems with DMA mode (lots of older WD disks has that). You only get WDMA2 mode since you controller is an older Intel PIIX that can't do UDMA... ata-pci0: Intel PIIX ATA controller at device 7.1 on pci0 ata-pci0: Busmastering DMA supported ad0: piomode=4 dmamode=2 udmamode=-1 cblid=0 ad0: WDC AC31600H/21.15T21 ATA-0 disk at ata0 as master ad0: 1549MB (3173184 sectors), 3148 cyls, 16 heads, 63 S/T, 512 B/S ad0: 16 secs/int, 1 depth queue, WDMA2 ad1: piomode=4 dmamode=2 udmamode=2 cblid=0 ad1: WDC AC22500L/32.41N37 ATA-3 disk at ata0 as slave ad1: 2441MB (4999680 sectors), 4960 cyls, 16 heads, 63 S/T, 512 B/S ad1: 16 secs/int, 1 depth queue, WDMA2 ad2: piomode=4 dmamode=2 udmamode=2 cblid=0 ad2: WDC AC26400R/15.01J55 ATA-4 disk at ata1 as master ad2: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S ad2: 16 secs/int, 1 depth queue, WDMA2 -Søren To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: ATA lost contact
On Wed, 5 Jan 2000, Soren Schmidt wrote: The disk probably has problems with DMA mode (lots of older WD disks has that). You only get WDMA2 mode since you controller is an older Intel PIIX that can't do UDMA... Hmm..This disk was bought in about March 99..you're sure that's the reason? Kris To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: ATA lost contact
It seems Kris Kennaway wrote: On Wed, 5 Jan 2000, Soren Schmidt wrote: The disk probably has problems with DMA mode (lots of older WD disks has that). You only get WDMA2 mode since you controller is an older Intel PIIX that can't do UDMA... Hmm..This disk was bought in about March 99..you're sure that's the reason? No, but I've had my share of bad experiences with WD disks in that regard, I'll have to look up the modelnumber to be sure... -Søren To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
