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Date:      Fri, 17 Sep 2004 02:00:47 GMT
From:      "Bjoern Koenig" <bkoenig@cs.tu-berlin.de>
To:        freebsd-i386@FreeBSD.org
Subject:   Re: i386/71761: disk write operations too slow (probably DMA problems with ICH2)
Message-ID:  <200409170200.i8H20lOp096123@freefall.freebsd.org>

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The following reply was made to PR i386/71761; it has been noted by GNATS.

From: "Bjoern Koenig" <bkoenig@cs.tu-berlin.de>
To: <freebsd-gnats-submit@FreeBSD.org>
Cc:  
Subject: Re: i386/71761: disk write operations too slow (probably DMA problems with ICH2)
Date: Fri, 17 Sep 2004 03:54:41 +0200

 Looks like an ICH2-specific bug which appeared first since atapi_dma became
 "1" by default.
 
 Either set hw.ata.atapi_dma="0" in /boot/loader.conf or an appropriate
 atacontrol command line in /etc/rc.early to set mode UDMA5 to hard disk
 device.
 
 



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