Re: [2.6.30-rc8 KVM] gcc 3.3 dies at emulate_2op_cl().

[Avi Kivity]

Tetsuo Handa wrote:
> Avi Kivity wrote:
>   
> > > I think something is wrong with emulate_2op_cl() when compiled with gcc 3.3.5 .
> > >       
> > This is on i386, not x86_64, yes?
> >
> >     
> Yes. Building "make allmodconfig" using Debian Sarge on i686 machine.
>   

Does the attached patch help?

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 22c765d..01717a5 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -451,7 +451,7 @@ static u32 group2_table[] = {
 			_PRE_EFLAGS("0", "5", "2")				\
 			_op _suffix " %4,%1 \n"					\
 			_POST_EFLAGS("0", "5", "2")				\
-			: "=m" (_eflags), "+r" (_dstv), "=&r" (_tmp)		\
+			: "=m" (_eflags), "+rm" (_dstv), "=&r" (_tmp)		\
 			: "c" (_clv) , "r" (_srcv), "i" (EFLAGS_MASK)		\
 			); 							\
 										\