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 4D5D063BA
	for <netdev@vger.kernel.org>; Thu,  6 Jul 2023 20:53:20 +0000 (UTC)
Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30CCFC433C8;
	Thu,  6 Jul 2023 20:53:20 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;
	s=k20201202; t=1688676800;
	bh=qcAxweDPq39L5npJuVAnsu8iW7yg61iPw5U4c+tnzj0=;
	h=Date:From:To:Cc:Subject:In-Reply-To:References:From;
	b=RxhYD7pxdvhLtmloT+u6LMKjgIUU7dIx+enmhalOc81qCOo5Hz+4RFuthAvsWT1E/
	 kUAaMR1lMiSRs55uVmSEfHeFa1pyjfPj1VX9JW75rfa5S/zqB0IR8lSzNLOfLvuqtD
	 69BwaJGpiUsYnvYvR2gr927E8ecpHIzkYAtXM2uHPN1UfX/LfdCWGQSvbfEGlDW35Y
	 3arIn7vx0GBRTFMZLsRCJD8zt2E/K9djoL8PxeHasRyE3w1jtWajQHE58oeRqGHwNY
	 Z79b6DhSbc4+1a7S+tnd21wWND84yk1TfOkaODFn4k4vqqVg4mFApB2XmxMx1sqCrP
	 WHbxLFg/M1Urg==
Date: Thu, 6 Jul 2023 13:53:19 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Ard Biesheuvel <ardb@kernel.org>, Alexander Potapenko
 <glider@google.com>, Boris Pismenny <borisp@nvidia.com>, John Fastabend
 <john.fastabend@gmail.com>, herbert@gondor.apana.org.au,
 linux-crypto@vger.kernel.org, syzkaller-bugs@googlegroups.com, syzbot
 <syzbot+828dfc12440b4f6f305d@syzkaller.appspotmail.com>, Eric Biggers
 <ebiggers@kernel.org>, Aviad Yehezkel <aviadye@nvidia.com>, Daniel Borkmann
 <daniel@iogearbox.net>, netdev@vger.kernel.org, "David S. Miller"
 <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Paolo Abeni
 <pabeni@redhat.com>
Subject: Re: [PATCH] net: tls: enable __GFP_ZERO upon tls_init()
Message-ID: <20230706135319.66d3cb78@kernel.org>
In-Reply-To: <35970e3b-8142-8e00-c12a-da8c6925c12c@I-love.SAKURA.ne.jp>
References: <0000000000008a7ae505aef61db1@google.com>
	<20200911170150.GA889@sol.localdomain>
	<c16e9ab9-13e0-b911-e33a-c9ae81e93a8d@I-love.SAKURA.ne.jp>
	<CAMj1kXFqYozjJ+qPeSApESb0Cb6CUaGXBrs5LP81ERRvb3+TAw@mail.gmail.com>
	<59e1d5c0-aedb-7b5b-f37f-0c20185d7e9b@I-love.SAKURA.ne.jp>
	<CAMj1kXGHRUUFYL09Lm-mO6MfGc19rC=-7mSJ1eDTcbw7QuEkaw@mail.gmail.com>
	<CAG_fn=X+eU=-WLXASidBCHWS3L7RvtN=mx3Bj8GD9GcA=Htf2w@mail.gmail.com>
	<CAMj1kXFrsc7bsjo2i0=9AqVNSCvXEnYAukzoXeaYEH9EpNviBA@mail.gmail.com>
	<CAG_fn=VFa2yeiZmdyuVRmZYtWn6Tkox8UVrOrCv4tEec3BFYbQ@mail.gmail.com>
	<CAMj1kXEdwjN7Q8tKVxHz98zQ4EsWVSdLZ5tQaV-nXxc9hwRYjQ@mail.gmail.com>
	<CAG_fn=UWZWc+FZ_shCr+T9Y3gV9Bue-ZFHKJj78YXBq3JfnUKA@mail.gmail.com>
	<CAMj1kXE_PjQT6+A9a0Y=ZfbOr_H+umYSqHuRrM6AT_gFJxxP1w@mail.gmail.com>
	<8c989395-0f20-a957-6611-8a356badcf3c@I-love.SAKURA.ne.jp>
	<35970e3b-8142-8e00-c12a-da8c6925c12c@I-love.SAKURA.ne.jp>
Precedence: bulk
X-Mailing-List: netdev@vger.kernel.org
List-Id: <netdev.vger.kernel.org>
List-Subscribe: <mailto:netdev+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:netdev+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

On Tue, 4 Jul 2023 22:32:00 +0900 Tetsuo Handa wrote:
> I found a simplified reproducer.
> This problem happens when splice() and sendmsg() run in parallel.

Could you retry with the upstream (tip of Linus's tree) and see if it
still repros? I tried to get a KMSAN kernel to boot on QEMU but it
the kernel doesn't want to start, no idea what's going on :(