From owner-freebsd-current  Fri Jan 14  3:51:40 2000
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From: Soren Schmidt <sos@freebsd.dk>
Message-Id: <200001141150.MAA87144@freebsd.dk>
Subject: Re: ATAPI CDROM trouble
In-Reply-To: <Pine.BSF.4.21.0001141433250.46165-100000@lanturn.kmost.express.ru> from "Vladimir B. Grebeschikov" at "Jan 14, 2000 02:42:20 pm"
To: vova@express.ru (Vladimir B. Grebeschikov)
Date: Fri, 14 Jan 2000 12:50:19 +0100 (CET)
Cc: current@FreeBSD.ORG
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It seems Vladimir B. Grebeschikov wrote:
> 
> With new ATA driver I have big trouble 
> - I can't use my CDROM
> 
> while I am do 'mount_cd9660 /dev/acd0c /m/cd'
> system compleatly holds, no core, no panic - hold (may be deadloop in
> kernel mode ?)

> options        ATA_ENABLE_ATAPI_DMA    #Enable DMA on ATAPI devices

Dont define this until you know the drive is functioning otherwise,
LOTS and I mean LOTS of atapi devices dont do DMA even if advertised.

-Søren


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