From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-178.mta0.migadu.com (out-178.mta0.migadu.com [91.218.175.178]) (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 770D1223DDF for ; Mon, 18 Aug 2025 21:20:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755552021; cv=none; b=P3sckf88nnl74Q6mCz4E/icLv+pmogi1VgcnQeUHMuNo+YwF1kdMWUjZOGrxiyd6LFxafdsqq+rOI3v8hu8Sr5mT1FRg34+0NOxb+5omJ0nVjDs3QDmHgp1/0kWGByFJ6sEy2l6xHPUqpL0+WJ2qyZK9i29WgnwncMugr87YNl0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755552021; c=relaxed/simple; bh=jUuKJMSnsAj8yEfULgTwdpau6FZrf5Blw3WxOj0VXTc=; h=Mime-Version:Content-Type:Date:Message-Id:Cc:Subject:From:To: References:In-Reply-To; b=ZAr8O0gmWgSZFom2OszxEmrDyY6fbSD6qwYDmi5uol7gxseADnBj5Vv9KH6vTRzV9UjpXu/nuxcVJDAY7oIRuRuPFWDttK4F+nESvvxSHmUjP6yGgrZB3YlzLuoaGvHyKYd9tvYq2m8J5485LJnAu0JDpvd5qyPl1nwFXhgq/N8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=cknow.org; spf=pass smtp.mailfrom=cknow.org; dkim=pass (2048-bit key) header.d=cknow.org header.i=@cknow.org header.b=qjbhtzNt; arc=none smtp.client-ip=91.218.175.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=cknow.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cknow.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cknow.org header.i=@cknow.org header.b="qjbhtzNt" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cknow.org; s=key1; t=1755552016; 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=XS7+GV2RkpfpXQCCQWs19kWJiga7BQll43I9ak8T6ss=; b=qjbhtzNtYArFfyLJniwM9+d4q2aGuf7I1GONVIlMYFZ07i8uuP8Uu5IUUc6KbVdcI9NiNz nE3no1ZIpnEQew9ebQPcdszgCsNd4cde4EsHkRl9b4v8lVLxKZ3lJjgVx0lphIGrthxx8Q UxqE9t3Oyo3C0STZR4RCKBPDIXooXpgcDeSX/dp+cz4Wb18zUUC7M7ptgxcnrYA+paLu5L yXGEubmWIIEIhKCOCdGJhtS2bzQODTKhb4qrTgFtk6BXV3DQssXzjBCH4r2dialzksYGT1 q0qUv0xOG0PGfj4IgTHSXDsauF8aZfQ6wQwY+gGRlmiw/PYYlqshz1mis8lNig== Content-Type: multipart/signed; boundary=f5a3337a4ddd79f69b97f3302687a1b89b63238d5c33cb848fb830109345; micalg=pgp-sha512; protocol="application/pgp-signature" Date: Mon, 18 Aug 2025 23:20:00 +0200 Message-Id: Cc: , , "Diederik de Haas" Subject: Re: [BUG report] kernel warnings with Samsung 970 EVO 2TB SSD X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: "Diederik de Haas" To: "Keith Busch" References: In-Reply-To: X-Migadu-Flow: FLOW_OUT --f5a3337a4ddd79f69b97f3302687a1b89b63238d5c33cb848fb830109345 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Mon Aug 18, 2025 at 10:48 PM CEST, Diederik de Haas wrote: > On Mon Aug 18, 2025 at 8:58 PM CEST, Keith Busch wrote: >> On Sat, Aug 16, 2025 at 04:11:00PM +0200, Diederik de Haas wrote: >>> On Sat Aug 16, 2025 at 3:20 PM CEST, Keith Busch wrote: >>>=20 >>> The other kernel warning is this: >>>=20 >>> nvme nvme0: using unchecked data buffer >>>=20 >>> The SUBNQN message appears every time, this one appears often, but not >>> always. >> >> That one means you've sent a user space passthrough command to a device >> that doesn't support SGL DMA. Without that, the nvme protocol uses >> implicitly sized DMA that the driver can't be sure is accurate. The user >> could theoretically provide a short buffer that can corrupt memory if >> done by accident, or be used as an attack vector if done by malicious >> software. >> >> This is also not something to worry about unless you run malicious or >> buggy software. > > I would be surprised if I was running malicious software, but pretty > much all software has bugs, so that's ofc possible. > ... > > Uninstalled the 3 programs from R5S that showed up the most around the > warning message and it's still there.=20 > Would 'dyndbg' be helpful to determine what program is buggy? =20 Looks like I found the 'winner': udisks2 (package) I uninstalled that and in the 10 boots after that, I did not see the message. Installed it again (without Recommends) and it was back on the first (re)boot. Thanks! Cheers, Diederik --f5a3337a4ddd79f69b97f3302687a1b89b63238d5c33cb848fb830109345 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQT1sUPBYsyGmi4usy/XblvOeH7bbgUCaKOZCAAKCRDXblvOeH7b bvlxAP9OjZ2a9vOVVf9jUCjeLoX2b1h1ZPtA6pVUfgGRKEx2JQEAhzTpzmfiuU85 rMxVDHRZfDaHjgVp1YoYZZLYJEOp9wE= =EcQA -----END PGP SIGNATURE----- --f5a3337a4ddd79f69b97f3302687a1b89b63238d5c33cb848fb830109345--