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Date:      Wed, 16 May 2001 15:43:58 +0200
From:      "Kozlovsky, Marek" <Marek.Kozlovsky@KPNQwest.com>
To:        "'current@freebsd.org'" <current@freebsd.org>
Subject:   RE: evil ATA
Message-ID:  <31FD3FA70CBED31189E700508B6401712C747C@ntexgpra01>

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> 
> Welp, this is the n-dozenth time that the ATA driver has 
> wedged large parts 
> of my entire system because it feels it needs to reset my 
> CD-R when I'm 
> trying to start burning a CD.  I get the good old
> 
> acd0: WRITE_BIG command timeout - resetting
> ata3: resetting devices .. 
> 

I don't know this case, but I've seen such behavior with non dma-capable hdd
on udma controller. take a look at sysctl hw.atamodes (may look like
'dma,---,---,dma') and try change it (sysctl -w hw.atamodes=dma,---,---,pio)
to PIO mode. it might help.

Buki

> Is there _any_ hope for not having such horrible behavior?  
> Am I at the very 
> least not the only person to have seen it?  This is the 
> _only_ problem I've 
> had with -current lockups this entire year.
> 
> -- 
>  Brian Fundakowski Feldman           \  FreeBSD: The Power to 
> Serve!  /
>  green@FreeBSD.org                    `------------------------------'

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