i386/71761: disk write operations too slow (probably DMA problems with ICH2)

[Bjoern Koenig]

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

From: "Bjoern Koenig" <bkoenig at cs.tu-berlin.de>
To: <freebsd-gnats-submit at 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.