Re: [PATCH 0/3] sched/swait: Convert to full exclusive mode

[Paul E. McKenney]

On Wed, Jun 13, 2018 at 06:27:42PM -0700, Paul E. McKenney wrote:
> On Tue, Jun 12, 2018 at 10:34:49AM +0200, Peter Zijlstra wrote:
> > As mentioned by Linus, swait is exclusive mode and had better behave like it
> > and be named like it.
> > 
> > Make it so.
> 
> Cool!
> 
> When I tried testing it on x86 against recent mainline, I got:
> 
> "WARNING: WARNING: Bad or missing .orc_unwind table.  Disabling unwinder."
> 
> But when I tested on recent mainline without your patches:
> 
> 	4597fcff0704 "Merge tag 'for-4.18/dm-changes-v2' of
> 	git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm"
> 
> I get the same warning.  Trying again on today's mainline, but in the
> meantime, is anyone else seeing this?

And this patch fixes this issue, FWIW:

https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1713797.html

							Thanx, Paul