On Tue, 23 Jan 2018, Andrew Cooper wrote:
> On 22/01/2018 23:48, Stefano Stabellini wrote:
> > Hi all,
> >
> > Running Xen inside QEMU x86 without KVM acceleartion and without VMX
> > emulation leads to the failure appended below.
> >
> > This trivial workaround "fixes" the problem:
> >
> > diff --git a/xen/arch/x86/extable.c b/xen/arch/x86/extable.c
> > index 72f30d9..a67d6c1 100644
> > --- a/xen/arch/x86/extable.c
> > +++ b/xen/arch/x86/extable.c
> > @@ -168,7 +168,6 @@ static int __init stub_selftest(void)
> > _ASM_EXTABLE(.Lret%=, .Lfix%=)
> > : [exn] "+m" (res)
> > : [stb] "r" (addr), "a" (tests[i].rax));
> > - ASSERT(res == tests[i].res.raw);
> > }
> >
> > return 0;
> >
> >
> > Any suggestions?
>
> Which i failed? This will probably be an emulation bug in Qemu.
i=2 is the culprit
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