On Mon, Jul 01, 2019 at 04:18:40PM -0400, Steven Rostedt wrote:
> On Mon, 1 Jul 2019 14:09:49 -0500
> Corey Minyard <minyard@xxxxxxx> wrote:
>
> > On Fri, Jun 28, 2019 at 09:49:03PM -0400, Steven Rostedt wrote:
> > > On Fri, 10 May 2019 12:33:18 +0200
> > > Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> wrote:
>
> > >
> > > When I applied this patch to 4.19-rt, I get the following lock up:
> >
> > I was unable to reproduce, and I looked at the code and I can't really
> > see a connection between this change and this crash.
> >
> > Can you reproduce at will? If so, can you send a testcase?
> >
>
> Yes, it wont boot. There is no testcase as I don't even make it to a
> boot prompt. I applied the patch and it crashes, I remove the patch and
> it boots without issue.
>
> Attached is the full dmesg and the config used. I applied it to
>
> ae97a0ba0197fb424008a317b79bebacd6a50213
> Linux 4.19.56-rt23
>
> It works fine for 5.0.14-rt9 where it was added.
>
> -- Steve
I show that patch is already applied at
1921ea799b7dc561c97185538100271d88ee47db
sched/completion: Fix a lockup in wait_for_completion()
git describe --contains 1921ea799b7dc561c97185538100271d88ee47db
v4.19.37-rt20~1
So I'm not sure what is going on.
-corey
