Date: Mon, 18 Oct 1999 13:58:03 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Soren Schmidt <sos@freebsd.dk> Cc: mjacob@feral.com, sos@FreeBSD.ORG, alpha@FreeBSD.ORG Subject: Re: workaround for ata driver woes on alpha Message-ID: <14347.24351.390250.179176@grits.cs.duke.edu> In-Reply-To: <199910181741.TAA99649@freebsd.dk> References: <14347.23151.744866.110836@grits.cs.duke.edu> <199910181741.TAA99649@freebsd.dk>
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Soren Schmidt writes: > It seems Andrew Gallatin wrote: > > > > Søren Schmidt writes: > > > > > > Well, the problem is that I didn't use hz to get the right timeout (there > > > the patch is correct) I missed that one sorry. > > > There could be a window problem, but it is highly unlikely that an ATA > > > disk is going to respond with an interrupt after the timeout happend, > > > but its not impossible. > > > > May I commit the hz fix? > > > > Sure. Ok, done. Thanks. > > > > Soren- this is your stuff isn't it- what have we misunderstood? > > > > > > This all needs more thought, I've just not had the time yet to do > > > more about it. Hopefully when I return from FreeBSDCon I'm have a > > > little more time for this... > > > > We (a grad student here & I ) talked about this at lunch. We think we > > might have a real fix. I'll pass it along after we test it. > > OK, I'll take a look at it, but no promises :) This is the same grad student (darrell Anderson) who gave you ad_dump(). -;) BTW -- I just talked to a collegue here who's getting screwed by ad_timeout() with a very slow disk on a pc. It sounds like it could be the same problem. Drew ------------------------------------------------------------------------------ Andrew Gallatin, Sr Systems Programmer http://www.cs.duke.edu/~gallatin Duke University Email: gallatin@cs.duke.edu Department of Computer Science Phone: (919) 660-6590 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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