Re: Is espfix64's double-fault thing OK on Xen?

From: H. Peter Anvin
Date: Tue Jul 15 2014 - 00:14:44 EST

On 07/14/2014 07:46 PM, Andy Lutomirski wrote:
> On espfix-less kernels (Xen and non-Xen), 16-bit CS w/ 16-bit SS
> always fails. Native (32-bit or 64-bit, according to the binary) CS
> with 16-bit SS fails for sigreturn_32, but passes for sigreturn_64. I
> find this somewhat odd. Native ss always passes.

espfix32 is disabled on Xen.


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