Re: [uml-devel] FPU patches broke UML on i7-7700 CPU

2017-03-17 Thread Richard Weinberger
Natale, On Wed, Feb 15, 2017 at 3:31 PM, Natale Patriciello wrote: > > Hello, > > as I've reported here [1], by changing the work station I've got the > same UML guest not working anymore. I investigated and the problem root > is in the code added in this patchset

[uml-devel] FPU patches broke UML on i7-7700 CPU

2017-02-15 Thread Natale Patriciello
Hello, as I've reported here [1], by changing the work station I've got the same UML guest not working anymore. I investigated and the problem root is in the code added in this patchset [2] (add extended processor state save/restore support). In particular, the ptrace returns < 0 and the errno