Messages in this thread |  | | Date | Mon, 26 Nov 2001 20:04:34 +0200 (EET) | From | Valkai Elod <> | Subject | Re: How do I add a drive to the DMA blacklist? |
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On Mon, 26 Nov 2001, Mark Hymers wrote:
> On Sun, 25, Nov, 2001 at 06:17:08PM -0500, Jonathan Kamens spoke thus.. > > How do I get a drive added to the DMA blacklists in ide-dma.c? I sent > > E-mail to Andre Hedrick in August about a drive that claims to support > > DMA but flakes out as soon as the kernel tries to use it -- the "WDC > > AC31000H". This is not surprising, since all the other WDC drives of > > this vintage have the same problem. I included a patch to add this > > drive to the two blacklists in ide-dma.c. Andre never responded to my > > E-mail, and the drive still hasn't been added to the blacklists. > > > > Am I doing something wrong? What do I need to do to get this drive > > added to the blacklists? > Actually, while this subject is being brought up, if I don't do: > /sbin/hdparm -d0 /dev/hdc > on bootup, my system locks up randomly. Looks like a DMA issue with my > hdc drive.. Details are: > > /proc/ide/hdc/model: > QUANTUM FIREBALLlct08 26
This seems to confirm my doubts about Quantum lct drives' sanity. I'm having two drives: a Quantum CX 13G, and a Maxtor 40G@5400. Both work with UDMA33 (mb doesn't support more). When i put a QUANTUM FIREBALL lct20 20G drive in my rack, random lockups occur. I'd put all Quantum LCT drives on the blacklist!
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