linux-kernel - Re: drm/nouneau: 5.11 cycle regression bisected to 461619f5c324 "drm/nouveau: switch to new allocator"

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Message-ID: <eeea2d002142ec7f8737b9d0fb5128b0cdb2ae58.camel@gmx.de>
Date:   Wed, 10 Feb 2021 13:22:44 +0100
From:   Mike Galbraith <efault@....de>
To:     Christian König <christian.koenig@....com>,
        lkml <linux-kernel@...r.kernel.org>
Cc:     nouveau@...ts.freedesktop.org, Ben Skeggs <bskeggs@...hat.com>,
        Dave Airlie <airlied@...hat.com>
Subject: Re: drm/nouneau: 5.11 cycle regression bisected to 461619f5c324
 "drm/nouveau: switch to new allocator"

On Wed, 2021-02-10 at 12:44 +0100, Christian König wrote:
> Please try to add a "return NULL" at the beginning of ttm_pool_type_take().
>
> That should effectively disable using the pool.

That did away with the yield looping, but it doesn't take long for the
display to freeze.  I ssh'd in from lappy, but there was nada in dmesg.

> Thanks for testing,

Happy to.

	-Mike