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Date: Tue, 23 Dec 2014 09:54:47 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] [PULL 26/47] cpu-exec: reset exception_index
	correctly
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To: Pavel Dovgaluk <Pavel.Dovgaluk@ispras.ru>, 'Eduardo Habkost' <ehabkost@redhat.com>
Cc: qemu-devel@nongnu.org



On 23/12/2014 07:55, Pavel Dovgaluk wrote:
>> 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?

It's already fixed in qemu.git.

Paolo