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bh=a9dNUhI2QgLPA72+LOzAsUcyH0YlbCoeEvSVL8YwBSs=; b=XdbywSomNMelXmfdhFqclN5FpQ/NThcQYPxw1MYKI/DNUOQLY1431cZOPCjwYI+h02gk8K BeQGaMvQEn2BoPudDfvDwRncZjzvHRTFhP7ou7GFKmgl8ijzFabI52TAP3YXec1X4q+aws a7dpwp+wH8rGWdIVDZRmNhNsH41FNSbTaLo1M1uYCh8qQ9QPq5pYQfL/9OeN34r+Hzt6my GlavEsvJRpQy9UqWTpD+NCsOyW2BDF/uQ7J4b5jBJ9A0Bn06zOlWv6f8xS5jS9qQuvxZR/ qgQ9q3J5q3qX+IWOsgCR9ReirUmv/Uzdm1DZRnUk6dZyyX+rT4V/noO185t60Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1732120845; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=a9dNUhI2QgLPA72+LOzAsUcyH0YlbCoeEvSVL8YwBSs=; b=ohY0Ra6peMKylhOY2pL8Kelfgc0LvJzcCh7au4yHQj7ccjcMecxMxmD5zfYMpEXDqu4OBt 6ZKeCWlKnpNObbCA== From: Sebastian Andrzej Siewior To: Steven Rostedt Cc: Catalin Marinas , Alessandro Carminati , Andrew Morton , Clark Williams , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, Thomas Weissschuh , Alessandro Carminati , Juri Lelli , Gabriele Paoloni , Eric Chanudet Subject: Re: [PATCH] mm/kmemleak: Fix sleeping function called from invalid context in kmemleak_seq_show Message-ID: <20241120164043.T1JuBALe@linutronix.de> References: <20241120102325.3538-1-acarmina@redhat.com> <20241120102602.3e17f2d5@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20241120102602.3e17f2d5@gandalf.local.home> X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: E939980011 X-Stat-Signature: capydqykbz1pppse1uah6d8xte3sg44w X-HE-Tag: 1732120749-506086 X-HE-Meta: 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 QwZZ7Qaw OWDbcAolmG9aZKLv4pIQdk9W6PGrXJg11PvjhUFENODb5HkheK2+Sg/weJAwvsBO/MIoiL8npx2LbGRQtN5OJwicp8y/R11D7bK3/3bJ0E/EA0QwYZV9g0WfaDOjFMUHczMyQo9ZggzUq5Kbi4LVvKhUyxvunWqTAq46D0Le8PaSxyMhXHd09Cyz584HBWTmo2CHamw2iXR4+siTtn+joZwXzTCl9exeenFkBUQmgMNpz/ys3Q37XSWiAFinsqLQF8J9ylskIfGUYjUSm0ZEsJU5ghw== 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 2024-11-20 10:26:02 [-0500], Steven Rostedt wrote: > The "%pK" dereferences a pointer and there's some SELinux hooks attached to > that code. The problem is that the SELinux hooks take spinlocks. This would > not have been an issue if it wasn't for that "%pK" in the format. That is missing check and I think Thomas Weissschuh wanted to add it. So we don't call into selinux. Sebastian