From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8FFC512C549 for ; Sat, 12 Oct 2024 21:05:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728767121; cv=none; b=CsKCUncjvyoiCBoxmQIqxUqUtoraZ22o+Eddt4c/tZ3OgQTrWTDyLN4ROsO1waDS/uIdmhvWZfzqLhtzMQ3wXSQ8+Dfg9O+X4dgOwEHoZeTsajelmJGOkfaynFVUOvnrczbTlDK2nsMqHu4veJdkgnEfCUmdt8JosG6eh9/v4DU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728767121; c=relaxed/simple; bh=xSY62ssdfWEkMQ4af/3EM7KfyGoPiG7svrPvEmt//S8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=DxSpcXSqzPiTTUDz6xuGScFHmZqVo3XM6a5SgrkZ534u+g3liToCcTOj2+eb9Qz96EHpbPelYvFLAS9zfO1TgwQGgiWwEkws2G9/CNzA9XrdPGtFkvAC6X7A0KGhOqw+zDNL1Z2Y5ZY2+bIUjoMrMfzuj/qvNrH0oO0TEtiKZqw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZUbEZod6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZUbEZod6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1CCBC4CEC6; Sat, 12 Oct 2024 21:05:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728767121; bh=xSY62ssdfWEkMQ4af/3EM7KfyGoPiG7svrPvEmt//S8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZUbEZod60HUuQKIRUxB4aTNG9XWxDIhNa4/oofyTeu8cmnaevcN7xxWIL7wM/Zd6r vfmtjjSKfbHOi6ylohxXuLl7CMHgj/FMZaSTPtWsa1GyUF7fm7ktCIPCtBFTKppILe rJKbi1o5sAPSvNfS6UHf34lOLgSKDToGX56ttMz5rIWCvp52M4Tu4DkA25XPEqf7mx sHEbO3y1SXfPFW82QqPfTcXKklkqINH8d8nX/vaiZchcvjWzYP9yvBxwoH7qTn3pnH uRp+oYgdLjXKndjy0sZLlGBmkEEkYVekLWRc1v1Uf91vvh9S8RVbLAK2vRLmxsYl5j 9EksCpMLWZIFA== Date: Sat, 12 Oct 2024 17:05:19 -0400 From: Sasha Levin To: Carlos Llamas Cc: gregkh@linuxfoundation.org, zhiguo.niu@unisoc.com, boqun.feng@gmail.com, bvanassche@acm.org, longman@redhat.com, paulmck@kernel.org, xuewen.yan@unisoc.com, stable@vger.kernel.org Subject: Re: FAILED: patch "[PATCH] lockdep: fix deadlock issue between lockdep and rcu" failed to apply to 5.4-stable tree Message-ID: References: <2024100226-unselfish-triangle-e5eb@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: On Thu, Oct 10, 2024 at 06:29:21PM +0000, Carlos Llamas wrote: >On Wed, Oct 02, 2024 at 12:07:26PM +0200, gregkh@linuxfoundation.org wrote: >> >> The patch below does not apply to the 5.4-stable tree. >> If someone wants it applied there, or to any other stable or longterm >> tree, then please email the backport, including the original git commit >> id to . >> >> To reproduce the conflict and resubmit, you may use the following commands: >> >> git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y >> git checkout FETCH_HEAD >> git cherry-pick -x a6f88ac32c6e63e69c595bfae220d8641704c9b7 >> # >> git commit -s >> git send-email --to '' --in-reply-to '2024100226-unselfish-triangle-e5eb@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. >> >> Possible dependencies: >> >> a6f88ac32c6e ("lockdep: fix deadlock issue between lockdep and rcu") >> 61cc4534b655 ("locking/lockdep: Avoid potential access of invalid memory in lock_class") >> 248efb2158f1 ("locking/lockdep: Rework lockdep_lock") >> 10476e630422 ("locking/lockdep: Fix bad recursion pattern") >> 25016bd7f4ca ("locking/lockdep: Avoid recursion in lockdep_count_{for,back}ward_deps()") >> >> thanks, >> >> greg k-h > >These 3 commits are the actual dependencies: > >[1] 61cc4534b655 ("locking/lockdep: Avoid potential access of invalid memory in lock_class") >[2] 248efb2158f1 ("locking/lockdep: Rework lockdep_lock") >[3] 10476e630422 ("locking/lockdep: Fix bad recursion pattern") > >It seems to me that [1] and [3] are fixes we would also want in 5.4. >Possibly also [2] just to make the cherry-picks cleaner. If there are no >objections I can send a patchset for linux-5.4.y with all 4? SGTM! -- Thanks, Sasha