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Date:      Tue, 21 Dec 1999 08:40:42 -0800 (PST)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Soren Schmidt <sos@freebsd.dk>
Cc:        Dieter Rothacker <didi@Xterminator.STUDFB.UniBw-Muenchen.de>, current@FreeBSD.ORG
Subject:   Re: ATA errors and AUTO_EOI
Message-ID:  <Pine.BSF.4.21.9912210837230.5973-100000@resnet.uoregon.edu>
In-Reply-To: <199912211153.MAA41346@freebsd.dk>

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On Tue, 21 Dec 1999, Soren Schmidt wrote:

> It seems Dieter Rothacker wrote:
> > 
> > Using the new board, I get "waiting for interrupt" errors, and the system
> > freezes while trying to mount the disks (with kernel from 12/03) or the
> > system freeezes before being able to detect the drives (with kernel from
> > 12/20).
> > 
> > The solution for me was to recompile the kernel without AUTO_EOI1 and
> > AUTO_EOI2.
> 
> Those options newer worked (for me at least) reliably with anything, could
> those that are seeing the hangs please check this ??

Although this isn't immediately related to ATA, I've found that Intel
L440GX+ boards *hate* AUTO_EOI_2 when running SMP.  They freeze going into
multiuser mode.  Took me quite a while to figure that out.

So if you're having wacky interrupt-related problems and have AUTO_EOIs in
your kernel, you should take them out first.

Doug White                    |  FreeBSD: The Power to Serve
dwhite@resnet.uoregon.edu     |  www.FreeBSD.org



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