kern/140251: [ata] [patch] add UDMA5 support to Intel SCH

Tomokazu HARADA tharada at
Tue Dec 22 13:10:03 UTC 2009

The following reply was made to PR kern/140251; it has been noted by GNATS.

From: Tomokazu HARADA <tharada at>
To: mav at
Cc: bug-followup at
Subject: Re: kern/140251: [ata] [patch] add UDMA5 support to Intel SCH
Date: Tue, 22 Dec 2009 22:01:06 +0900 (JST)

 >> but DMA limited to UDMA33. This is another problem
 >> in ata-all.c. I modified ata-all.c, it goes UDMA100 well.
 > You are wrong here. As this controller doesn't implement cable
 > detection, we have to ask drive about it. Probably your drive reports
 > 40-wire cable.
 I see. atacap->hwres reports 40 wire on this board.
 Tomokazu HARADA

More information about the freebsd-bugs mailing list