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Date: Tue, 28 Oct 2014 12:40:32 +0100
From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: Threads
Message-ID: <20141028114032.GJ20607@calimero.vinschen.de>
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References: <54450835.3050602@cornell.edu> <5448E6F9.8040005@dronecode.org.uk> <5448EEBF.3020706@cornell.edu> <20141023153730.GC20607@calimero.vinschen.de> <544A327E.9090006@dronecode.org.uk> <20141024125416.GK20607@calimero.vinschen.de> <20141024135231.GL20607@calimero.vinschen.de> <544F736F.2020900@dronecode.org.uk>
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On Oct 28 10:43, Jon TURNEY wrote:
> On 24/10/2014 14:52, Corinna Vinschen wrote:
> >I discussed this with my college Kai Tietz (many thanks to him from
> >here), and we came up with a problem in sigdelayed in the 64 bit case:
> >pushf is called *after* aligning the stack with andq.  This alignment
> >potentially changes the CPU flag values so the restored flags are
> >potentially not the flags when entering sigdelayed.
> >
> >I just applied a patch and created new snapshots on
> >https://cygwin.com/snapshots/
> >
> >I couldn't reproduce the problem locally, so I'd be grateful if you
> >could test if that fixes the problem in your testcase, Jon.
>=20
> I've tried that snapshot with both my testcase and emacs, without problem=
s.
>=20
> Thanks very much for fixing this!

Thanks again to Kai Tietz for helping me with this.

Let's just hope this was the actual problem... :}


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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