linux-kernel - Re: kvm+nouveau induced lockdep gripe

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Message-ID: <20201023090108.5lunh4vqfpkllmap@linutronix.de>
Date:   Fri, 23 Oct 2020 11:01:08 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Mike Galbraith <efault@....de>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: kvm+nouveau induced lockdep  gripe

On 2020-10-22 07:28:20 [+0200], Mike Galbraith wrote:
> I've only as yet seen nouveau lockdep gripage when firing up one of my
> full distro KVM's.

Could you please check !RT with the `threadirqs' command line option? I
don't think RT is doing here anything different (except for having
threaded interrupts enabled by default).

Sebastian