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Date:      Mon, 14 Oct 2002 09:30:24 -0400 (EDT)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        Wesley Morgan <morganw@chemikals.org>, current@FreeBSD.ORG
Subject:   Re: X problems & 5.0... -RELEASE?
Message-ID:  <15786.50928.826403.959175@grasshopper.cs.duke.edu>
In-Reply-To: <20021014041422.GA31437@xor.obsecurity.org>
References:  <20021013231430.F92271-100000@volatile.chemikals.org> <20021014041422.GA31437@xor.obsecurity.org>

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Kris Kennaway writes:
 > On Sun, Oct 13, 2002 at 11:28:51PM -0400, Wesley Morgan wrote:
 > 
 > > I know there is some work being done on the recent signal changes to fix
 > > some things, but are we sure this is the problem? I would hate to see
 > > release schedules pushed back because these problems are lost in the
 > > noise, and I can't see a release being made that has a known unstable X.
 > 
 > I thought this was believed to be a bug in X that was exposed by
 > kernel changes.

Given that it (apparently) happens on X servers compiled months ago,
my gut feeling is that it is a bug in the kernel floating point
context save/restore in the presence of signals.

I still can't run X without crashing the *kernel* because of the
conglomeration of hacks that was added to i386/machdep.c to paper-over
floatingpoing problems after the latest KSE brea^W import.  The 
last machdep.c that works for me is 1.539.  This has been dragging
on for nearly 2 weeks.

Drew



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