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From: "Pavel Dovgaluk" <Pavel.Dovgaluk@ispras.ru>
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Date: Tue, 23 Dec 2014 09:55:54 +0300
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Subject: Re: [Qemu-devel] [PULL 26/47] cpu-exec: reset exception_index
	correctly
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To: 'Eduardo Habkost' <ehabkost@redhat.com>, 'Paolo Bonzini' <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org

> From: Eduardo Habkost [mailto:ehabkost@redhat.com]
> On Mon, Dec 15, 2014 at 05:38:10PM +0100, Paolo Bonzini wrote:
> > From: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
> >
> > Exception index is reset at every entry at every entry into cpu_exec()
> > function. This may cause missing the exceptions while replaying them.
> > This patch moves exception_index reset to the locations where they are
> > processed.
> >
> > Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> 
> x86_64-linux-user is broken after applying this patch:
> 
>   [qemu/(e511b4d...)|BISECTING]$ ./install/bin/qemu-x86_64 /bin/true
>   qemu: uncaught target signal 8 (Floating point exception) - core dumped
>   Floating point exception (core dumped)

I cannot reproduce this bug.
QEMU runs and terminates correctly.
Can you show me call stack for the exception?

Pavel Dovgalyuk