Date: Sun, 12 Oct 2003 10:24:30 -0500 From: Kirk Strauser <kirk@strauser.com> To: freebsd-current@freebsd.org Subject: Re: ATAng still causing a lot of pain. Message-ID: <87ad86iimp.fsf@strauser.com> In-Reply-To: <87wubbiv7y.fsf@strauser.com> (Kirk Strauser's message of "Sat, 11 Oct 2003 11:40:17 -0500") References: <87wubbiv7y.fsf@strauser.com>
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[-- Attachment #1 --]
Further details:
The ATA drive in questions is:
ad0: 114473MB <WDC WD1200JB-00DUA3> [232581/16/63] at ata0-master PIO4
The PIO4 comes from booting with 'hw.ata.ata_dma="0"'; it would otherwise be
"UDMA66".
Basically, if I use atacontrol to set that channel to WDMA2 or below, then I
get no errors (but performance is awful). At UDMA2 I been to see "TIMEOUT -
WRITE_DMA" and "TIMEOUT - READ_DMA" messages, but the system recovers. At
UDMA4 and above, the kernel panics.
--
Kirk Strauser
"94 outdated ports on the box,
94 outdated ports.
Portupgrade one, an hour 'til done,
82 outdated ports on the box."
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