linux-kernel - Re: [PATCH v13 0/9] ref_tracker: add ability to register a debugfs file for a ref_tracker

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Message-Id: <20250603193824.f0ba97cd26e7ed4152a91921@linux-foundation.org>
Date: Tue, 3 Jun 2025 19:38:24 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Jeff Layton <jlayton@...nel.org>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
 <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, Maarten Lankhorst
 <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
 Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
 Simona Vetter <simona@...ll.ch>, Jani Nikula <jani.nikula@...ux.intel.com>,
 Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>, Rodrigo Vivi
 <rodrigo.vivi@...el.com>, Tvrtko Ursulin <tursulin@...ulin.net>, Krzysztof
 Karas <krzysztof.karas@...el.com>, Kuniyuki Iwashima <kuniyu@...zon.com>,
 Qasim Ijaz <qasdev00@...il.com>, Nathan Chancellor <nathan@...nel.org>,
 Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org,
 netdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 intel-gfx@...ts.freedesktop.org, Thomas Weißschuh
 <thomas.weissschuh@...utronix.de>
Subject: Re: [PATCH v13 0/9] ref_tracker: add ability to register a debugfs
 file for a ref_tracker_dir

On Tue, 3 Jun 2025 19:29:49 -0700 Jakub Kicinski <kuba@...nel.org> wrote:

> > I think the i915 driver is doing something it shouldn't with these
> > objects. They seem to be initialized more than once, which could lead
> > to leaked ref_tracker objects. It would be good for one of the i915
> > maintainers to comment on whether this is a real problem.
> 
> I still see the fs crashes:
> https://netdev-3.bots.linux.dev/vmksft-packetdrill-dbg/results/149560/2-tcp-slow-start-slow-start-app-limited-pkt/stderr
> I'll hide this series from patchwork for now. We will pull from Linus
> on Thu, I'll reactivate it and let's see if the problem was already
> fixed.

Ah.  I dropped the copy from mm.git.