linux-kernel - Re: [bisected] Re: nouveau: lockdep cli->mutex vs reservation_ww_class

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Message-ID: <d434abd7029f0b7978dfbc0c1f5db3979812fc35.camel@gmx.de>
Date:   Mon, 15 Mar 2021 11:36:30 +0100
From:   Mike Galbraith <efault@....de>
To:     Christian König <christian.koenig@....com>,
        LKML <linux-kernel@...r.kernel.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>
Cc:     Ben Skeggs <bskeggs@...hat.com>,
        nouveau <nouveau@...ts.freedesktop.org>,
        Dave Airlie <airlied@...hat.com>
Subject: Re: [bisected] Re: nouveau: lockdep cli->mutex vs
 reservation_ww_class_mutex deadlock report

On Mon, 2021-03-15 at 09:53 +0100, Mike Galbraith wrote:
> On Mon, 2021-03-15 at 09:05 +0100, Christian König wrote:
> > Hi Mike,
> >
> > I'm pretty sure your bisection is a bit off.
>
> (huh?) Ah crap, yup, the spew from hell you plugged obliterated the
> lockdep gripe I was grepping for as go/nogo, and off into lala land we
> go.. twice.. whee :)  Oh well, the ordering gripe is clear enough
> without a whodoneit.

However, after having rummaged around, two minutes with gitk was enough
for 551620f2 to flash neon red, and one build later confirm it.

	-Mike