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Re: port-amd64/42980: satalink DMA fails under amd64



The following reply was made to PR port-amd64/42980; it has been noted by GNATS.

From: Julian Bourne <julian.bourne%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost, 
port-amd64-maintainer%netbsd.org@localhost, 
        gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: port-amd64/42980: satalink DMA fails under amd64
Date: Thu, 18 Mar 2010 13:54:20 -0400

 That patch leaves us back where we started:
 
 satalink0:0: unable to create xfer table DMA map for drive 0, error=22
 wd0(satalink0:0:0): using PIO mode 4
 satalink0:1: unable to create xfer table DMA map for drive 0, error=22
 wd1(satalink0:1:0): using PIO mode 4
 
 along with the subsequent performance issues.
 
 Note also, I had the same behaviour with the regular amd64 (non xen);
 so it may be that this boundary versus size check is made other places
 as well.
 
 I will verify a few things to make sure that I'm not giving you all
 the wrong picture here - but I think its more general than just the
 xen code.
 


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