Date: 01 Nov 2000 17:26:10 -0500 From: Arcady Genkin <antipode@thpoon.com> To: freebsd-questions@FreeBSD.ORG Cc: nathan <beemern@telecom.ksu.edu> Subject: Re: ad0: DMA problem fallback to PIO mode; HARD READ ERROR blk#25418687 Message-ID: <87snpb1g8t.fsf@tea.thpoon.com> In-Reply-To: <3A007B6D.CC73786B@telecom.ksu.edu> References: <Pine.SOL.4.10.10011011352230.16836-100000@breakout.gpcc.itd.umich.edu> <3A006927.D10FC9E0@telecom.ksu.edu> <87wven1mlu.fsf@tea.thpoon.com> <3A007B6D.CC73786B@telecom.ksu.edu>
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nathan <beemern@telecom.ksu.edu> writes: > > It's a Gygabit <sp?> with an HX chipset. > > any chance you could take a peek inside your box and get exact > make/model? or it might show up on POST (this is why i never > 'cover' my boxes) It's a GA-586HX. http://www.giga-byte.com/gigabyte-web/mdiscontinued.htm#ea4d BTW, what is POST? It says "mode 3,4 IDE". So I guess no DMA for disks. Now the question is how to disable DMA in the kernel. I see option #options ATA_ENABLE_ATAPI_DMA but it's commented out. Is there any other way to tell the kernel not to use DMA for ata driver? > > pcib0: <Host to PCI bridge> on motherboard > > pci0: <PCI bus> on pcib0 > > isab0: <Intel 82371SB PCI to ISA bridge> at device 7.0 on pci0 > > isa0: <ISA bus> on isab0 > > atapci0: <Intel PIIX3 ATA controller> port 0xf000-0xf00f at device 7.1 on pci0 > > ata1: at 0x170 irq 15 on atapci0 > > ata1-master: DMA limited to UDMA33, non-ATA66 compliant cable > > ad2: 13042MB <IBM-DPTA-371360> [26500/16/63] at ata1-master WDMA2 > > ad3: 18366MB <QUANTUM BIGFOOT TS19.2A> [37317/16/63] at ata1-slave WDMA2 > > Mounting root from ufs:/dev/ad2s1a > rebuild your kernel withOUT DMA and see what happens I would happily do so. Now if I only could figure out how... ;^) -- Arcady Genkin Don't read everything you believe. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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