Re: [Xen-devel] Re: 2.6.28.7 domU: 32-bit emulation seems to be broken

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Sven Köhler wrote:
> Jeremy Fitzhardinge schrieb:
>   
> > Sven Köhler wrote:
> >     
> > > Jeremy Fitzhardinge schrieb:
> > >  
> > >       
> > > > Has it ever worked?  If so, what kernel version did it stop working
> > > > at?     
> > > >         
> > > I've just tried a good old non-pv_ops 2.6.18 kernel:
> > >
> > > I ran the same binary file, that segfaults on 2.6.28.7.
> > > It runs just fine on 2.6.18.
> > >
> > > I haven't tested any other pc_ops kernel version. I'm not sure, that it
> > > ever worked with these kernel. Which was the first kernel version, that
> > > had domU support? 2.6.28.0 ?
> > >
> > >   
> > >       
> > Does this patch help?
> >
> > diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
> > index e4baa06..3ea8299 100644
> > --- a/arch/x86/ia32/ia32entry.S
> > +++ b/arch/x86/ia32/ia32entry.S
> > @@ -400,7 +400,6 @@ ENTRY(ia32_syscall)
> >     /*CFI_REL_OFFSET    rflags,EFLAGS-RIP*/
> >     /*CFI_REL_OFFSET    cs,CS-RIP*/
> >     CFI_REL_OFFSET    rip,RIP-RIP
> > -    PARAVIRT_ADJUST_EXCEPTION_FRAME
> >     SWAPGS
> >     /*
> >      * No need to follow this irqs on/off section: the syscall
> >     
> No, still segfaults :-(
>   
Do you have auditing enabled?

   J

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