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To:     Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>
From:   Chris Wilson <chris@chris-wilson.co.uk>
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        Steven Rostedt <rostedt@goodmis.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Joerg Roedel <joro@8bytes.org>
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Subject: Re: NMI hardlock stacktrace deadlock [was Re: Linux 5.2-rc5]
Date:   Fri, 21 Jun 2019 19:37:21 +0100
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Quoting Thomas Gleixner (2019-06-21 16:30:52)
> Chris, do you have the actual NMI lockup detector splats somewhere?

Sorry, I'm having a hard time reproducing this at will now. The test
case depends on the right timing of the wrong event to cause the GPU to
hang.

From memory, I got the
	"Watchdog detected hard LOCKUP on cpu foo"
followed by the register dump and then nothing. At which point I had to
power cycle the machine.
-Chris