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X-HELO: calimero.vinschen.de
Date: Tue, 28 Oct 2014 12:40:32 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Threads
Message-ID: <20141028114032.GJ20607@calimero.vinschen.de>
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References: <54450835 DOT 3050602 AT cornell DOT edu> <5448E6F9 DOT 8040005 AT dronecode DOT org DOT uk> <5448EEBF DOT 3020706 AT cornell DOT edu> <20141023153730 DOT GC20607 AT calimero DOT vinschen DOT de> <544A327E DOT 9090006 AT dronecode DOT org DOT uk> <20141024125416 DOT GK20607 AT calimero DOT vinschen DOT de> <20141024135231 DOT GL20607 AT calimero DOT vinschen DOT de> <544F736F DOT 2020900 AT dronecode DOT org DOT 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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