Re: [REGRESSION] x86/debug: After PTRACE_SINGLESTEP DR_STEP is no longer reported in dr6

[Peter Zijlstra]

On Tue, Oct 27, 2020 at 10:08:14AM +0100, Peter Zijlstra wrote:
> On Mon, Oct 26, 2020 at 04:30:32PM -0700, Andy Lutomirski wrote:
> > Is there any compelling reason not to just drop the condition and do:
> > 
> > current->thread.virtual_dr6 |= (dr6 & DR_STEP);
> > 
> > unconditionally?
> 
> Because why should it?

Because WINE does indeed rely on that. I'll go post a new version.