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Wed, 3 Jan 2024 08:30:09 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id fP9iNREblWX4XgAAD6G6ig (envelope-from ); Wed, 03 Jan 2024 08:30:09 +0000 Date: Wed, 3 Jan 2024 09:30:56 +0100 From: Oscar Salvador To: andrey.konovalov@linux.dev Cc: Andrew Morton , Andrey Konovalov , Marco Elver , Alexander Potapenko , Dmitry Vyukov , Vlastimil Babka , kasan-dev@googlegroups.com, Evgenii Stepanov , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov Subject: Re: [PATCH v4 06/22] lib/stackdepot: use fixed-sized slots for stack records Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 653F540019 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: oaagd8arm8j4fgafc38oz73t8mf189oq X-HE-Tag: 1704270612-299620 X-HE-Meta: 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 qjgSyXZf 1MEOnjBwKZLswWLrFql4nCyQIMKBpNyOnImYjBtY8lyx4l+01+qmbKoraDNx4MJoTenuMjntg9U9eFKW96Jpg+pYJUqCoWMGTuh4frdVwxXzhMA6ufam6Kxeix93Y0rRB48b04xJwVILHPUPLcjy5BE+wmzVs7U+ryBXGBtjakuZtcM21nju947r7OQgEPXHDcnA9fBB8hx2hTPLorlokk1N4+nCx99GDApBZ X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Nov 20, 2023 at 06:47:04PM +0100, andrey.konovalov@linux.dev wrote: > From: Andrey Konovalov > > Instead of storing stack records in stack depot pools one right after > another, use fixed-sized slots. > > Add a new Kconfig option STACKDEPOT_MAX_FRAMES that allows to select > the size of the slot in frames. Use 64 as the default value, which is > the maximum stack trace size both KASAN and KMSAN use right now. > > Also add descriptions for other stack depot Kconfig options. > > This is preparatory patch for implementing the eviction of stack records > from the stack depot. > > Signed-off-by: Andrey Konovalov Reviewed-by: Oscar Salvador -- Oscar Salvador SUSE Labs