Messages in this thread | | | Date | Mon, 1 Jul 2019 15:43:25 -0500 | From | Corey Minyard <> | Subject | Re: [PATCH RT v2] Fix a lockup in wait_for_completion() and friends |
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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@acm.org> 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@linutronix.de> 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
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