Date: Thu, 9 Mar 2000 21:32:19 +0200 (SAT) From: John Hay <jhay@mikom.csir.co.za> To: sos@freebsd.dk (Soren Schmidt) Cc: jhay@mikom.csir.co.za (John Hay), freebsd-current@FreeBSD.ORG (FreeBSD-current) Subject: Re: ata, DMA and the install floppies Message-ID: <200003091932.VAA00712@zibbi.mikom.csir.co.za> In-Reply-To: <200003091923.UAA20462@freebsd.dk> from Soren Schmidt at "Mar 9, 2000 08:23:33 pm"
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> > > > I have been trying to install yesterday's 4.0 snap on a no-name brand > > motherboard with the VIA chipset, but I'm running in some problems. I > > suspect there is a problem with the DMA. The error I'm getting when the > > disk is newfs'ed is a repeating: > > > > ad0: WRITE command timeout - resetting > > ata0: resetting devices .. done > > ad0: WRITE command timeout - resetting > > ata0: resetting devices .. done > > ... > > > > It seems that it is just going on and on. Shouldn't it back down to non > > DMA mode after a while? Is there a way to disable the DMA on the install > > floppies? > > It should back down after 3 retries... But is is 3 retries pr request, > so say it gets through on the 2 retry each time this will continue.. > I dont know if there is access to the sysctl knobs from the emergency > shell, but that would be a solution... Well it is been doing fsck for more than an hour now. :-) This is before the emergency shell is opened, but if I remember correctly, sysctl is not part of tools available. > > > Part of the probe looks like this: (written down by hand) > > > > atapci0: <VIA 82C586 ATA33 controller> port 0xe000 - 0xe00f at device 7.1 on pci0 > > ata0: at 0x1f0 irq 14 on atapci0 > > ... > > ad0: 6204MB <ST36531A> [13446/15/63] at ata0-master using UDMA33 > > Hmm, wierd, did this hardware run FreeBSD before ?? A similar system did run FreeBSD-3.4, but I never enabled DMA on it. I'll try to install 3.4 on this one and see. John -- John Hay -- John.Hay@mikom.csir.co.za To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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