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Date:      Tue, 28 Nov 2000 10:00:03 -0800 (PST)
From:      Carlos Amengual <webmaster@healthnet-sl.es>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/22086: DMA errors during intensive disk activity on vinum  volume
Message-ID:  <200011281800.eASI03i24567@freefall.freebsd.org>

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The following reply was made to PR kern/22086; it has been noted by GNATS.

From: Carlos Amengual <webmaster@healthnet-sl.es>
To: freebsd-gnats-submit@FreeBSD.org, rasmith@aristotle.tamu.edu
Cc:  
Subject: Re: kern/22086: DMA errors during intensive disk activity on vinum 
 volume
Date: Tue, 28 Nov 2000 18:52:43 +0100

 I found the same problem on a 4.2-RELEASE system:
 
 Vinum configuration:
 
 drive idea device /dev/ad0s1e
 drive ideb device /dev/ad2s1f
 drive idec device /dev/ad4s1f
 volume raid5a
   plex org raid5 512k
     sd length 0 drive idea
     sd length 0 drive ideb
     sd length 0 drive idec
 
 The error messages:
 
 Nov 27 22:24:43 vega /kernel: ata0-master: zero length DMA transfer
 attempted
 Nov 27 22:25:06 vega /kernel: ad0: WRITE command timeout tag=0 serv=0 -
 resetting
 Nov 27 22:25:06 vega /kernel: ata0: resetting devices .. done
 Nov 27 22:25:06 vega /kernel: ata0-master: zero length DMA transfer
 attempted
 Nov 27 22:25:06 vega /kernel: ad0: WRITE command timeout tag=0 serv=0 -
 resetting
 Nov 27 22:25:06 vega /kernel: ata0: resetting devices .. done
 


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