Re: [v7, 05/11] x86/retpoline/entry: Convert entry assembler indirect jumps

[Andrei Vagin]

On Tue, Jan 09, 2018 at 08:39:21PM -0800, Dave Hansen wrote:
> On 01/09/2018 08:30 PM, Andi Kleen wrote:
> > On Tue, Jan 09, 2018 at 07:54:08PM -0800, Andrei Vagin wrote:
> >>
> >> In my test environment, the kernel with this patch crashes.
> > 
> > I posted a patch for this.
> 
> It's called:
> 
> [PATCH v3 2/3] x86/retpoline: Use better sequences for NOSPEC_CALL/JMP
> 
> right, Andi?

This patch fixed the problem. Thanks!

> 
> BTW, that's a fun oops.  It looks like it's call'ing (or jumping) to an
> address that's used by cpu_entry_area->exception_stacks[1].