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From: Ludovic Drolez <ludovic.drolez@linbox.com>
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Subject: Re: [Qemu-devel] [BUG] QEMU x86_64 SSE bug in modf()
References: <45AB54D9.9020207@linbox.com> <20070115120237.GB25395@networkno.de>
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Date: Mon, 15 Jan 2007 13:54:59 -0000
To: Thiemo Seufer <ths@networkno.de>
Cc: qemu-devel@nongnu.org

Thiemo Seufer wrote:
> Ludovic Drolez wrote:
> [snip]
> 
>>Would someone be able to track down this SSE QEMU bug seen only in SLES's 
>>modf() function ?
> 
> 
> Please test if this patch for qemu changes the behaviour.
> 

Strange... With this, qemu does not run at all (qemu process stuck with 100% 
CPU used).

   Ludo.

> 
> Thiemo
> 
> 
> Index: Makefile.target
> ===================================================================
> RCS file: /sources/qemu/qemu/Makefile.target,v
> retrieving revision 1.136
> diff -u -p -r1.136 Makefile.target
> --- Makefile.target	7 Jan 2007 22:04:40 -0000	1.136
> +++ Makefile.target	15 Jan 2007 11:59:15 -0000
> @@ -70,7 +70,7 @@ OP_CFLAGS = -Wall -O2 -g -fno-strict-ali
>  
>  ifeq ($(ARCH),i386)
>  HELPER_CFLAGS+=-fomit-frame-pointer
> -OP_CFLAGS+=-mpreferred-stack-boundary=2 -fomit-frame-pointer
> +OP_CFLAGS+=-fomit-frame-pointer
>  ifeq ($(HAVE_GCC3_OPTIONS),yes)
>  OP_CFLAGS+= -falign-functions=0 -fno-gcse
>  else
> 


-- 
Ludovic DROLEZ                              Linbox / Free&ALter Soft
www.linbox.com www.linbox.org