Re: How do I add a drive to the DMA blacklist?

From: Mark Hymers (markh@linuxfromscratch.org)
Date: Sun Nov 25 2001 - 19:22:57 EST


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

Are there any other details which would be handy?

Mark

-- 
Mark Hymers					 BLFS Editor
markh@linuxfromscratch.org
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Fri Nov 30 2001 - 21:00:20 EST