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From: SJ Park <sj@kernel.org>
To: Aveline Noir <jm5905938@gmail.com>
Cc: SJ Park <sj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	damon@lists.linux.dev, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: [BUG] DAMON sysfs: failed update clears tried_regions snapshot
Date: Thu, 15 Oct 2026 07:05:01 -0700	[thread overview]
Message-ID: <20261015140502.87975-1-sj@kernel.org> (raw)
In-Reply-To: <CANOyQmHo94dwHVMWeUfQsks0b30uZT0wuV8mDQ9MjB-HL0yVnA@mail.gmail.com>

Hi Avelin,

On Thu, 15 Oct 2026 07:22:38 -0400 Aveline Noir <jm5905938@gmail.com> wrote:

> Hi,
> 
> On mm-new commit ad9f2d463666, requesting
> update_schemes_tried_regions after stopping a kdamond returns
> -ECANCELED and clears the previous tried_regions snapshot.  The final
> result collected before "off" is then lost.

Could you further share your use case that this behavior becomes a real
problem?  Also, have you tried bisecting this to find from when this behavior
was introduced?  If so, could you share the commit that introduced this
behavior?


THanks,
SJ

[...]

  reply	other threads:[~2026-10-15 14:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-15 11:22 [BUG] DAMON sysfs: failed update clears tried_regions snapshot Aveline Noir
2026-10-15 14:05 ` SJ Park [this message]
2026-10-15 15:17   ` Aveline Noir

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