Date: Sat, 25 Oct 2003 13:12:45 -0700 From: Murray Stokely <murray@FreeBSD.org> To: Mike Harding <mvh@ix.netcom.com> Cc: sos@FreeBSD.org Subject: Re: Possible mouse/ATA problems in -STABLE Message-ID: <20031025201245.GD17410@freebsdmall.com> In-Reply-To: <1066927591.724.8.camel@netcom1.netcom.com> References: <20031023141503.4004C53C7@netcom1.netcom.com> <20031023092157.M79600@carver.gumbysoft.com> <1066927591.724.8.camel@netcom1.netcom.com>
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On Thu, Oct 23, 2003 at 09:46:31AM -0700, Mike Harding wrote: > I think that maybe the new ATA drivers are staying in the interrupt a > bit longer and causing data to be dropped. > > I have reverted to 1-sep -STABLE and it seems stable (so far), I am > going to try a new -STABLE and look at the interrupt counts. > > The -STABLE ATA drivers were MFC'd - after this merge I see the > following comment for a commit on ata-dma.c (revision 1.122) > > ... > "This pushed the time spent between starting the ATA command and > starting the DMA engine over the hill for some controllers > (especially the Silicon Image DS3112a) and caused what looked > like lost interrupts." > > - so possibly we need another MFC... ? I think maybe we do. Unfortunately Soeren is not working on ATA in -stable. Is there anyone else (a committer?) who can verify that this analysis is correct? Can we circulate a patch? - Murray
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