From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 163DED35162 for ; Wed, 1 Apr 2026 11:17:40 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 69F676B0005; Wed, 1 Apr 2026 07:17:39 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6501D6B0088; Wed, 1 Apr 2026 07:17:39 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 565C36B0089; Wed, 1 Apr 2026 07:17:39 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 49E0C6B0005 for ; Wed, 1 Apr 2026 07:17:39 -0400 (EDT) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id ED8691B8A5B for ; Wed, 1 Apr 2026 11:17:38 +0000 (UTC) X-FDA: 84609736596.28.B5C032F Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf11.hostedemail.com (Postfix) with ESMTP id 3083940013 for ; Wed, 1 Apr 2026 11:17:36 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=TtkyqXx0; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf11.hostedemail.com: domain of broonie@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=broonie@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1775042257; a=rsa-sha256; cv=none; b=fGmuAH+voNXPL3fgoBaCfvvNbj0hlLN7vDWbECYEiZLIfqZ4oH54sRj3b2J3J5/4cS7Zna KRqpMXWrJHDwVW92L4A8yu13OGMRo9XY5GQahu8JLQSSMGzh4QbttE4ujZFO/PM7eAJh7l gP4YUKgujDcPpq+0igsKPthz3BAmTLQ= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=TtkyqXx0; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf11.hostedemail.com: domain of broonie@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=broonie@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1775042257; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=HwOCAyG3TTWEIt2f0AUGMNbjfpqujqWRqR+DRuh3U/U=; b=oG/VAvuaSkY/Km0iVlmIKb+1KVOsHfaoA5cNMhLZk6oCEt8GuTx4oCtrMvfEuRGI/SLbHu TPVYTA6K9fpCZMtWyUXBOfcJt+e/E9WeFaWdxlmBS/goOzeQ2dwe8I3AW2ZQfIxLf9dFmH oI7HKFGFwSZusg3hciLcqbwTaxMdMhc= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 216704089F; Wed, 1 Apr 2026 11:17:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0268DC4CEF7; Wed, 1 Apr 2026 11:17:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775042256; bh=N1Lg/uuMEG2XclojkpbMXk7nlKJI478QJMLpw9zok0Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TtkyqXx0O7OeO7sZ0xDozi/d6eOhTtvwWBptDQHmVQaL4CKzCN9kCUoZBOpvrZKeE Pp5UnmUUAFa95UoVI2lwUNtcTYvqACblxFId+EBTFK3q6sJSDeutW3aSA+s7ONlSv3 rG3M+xaK8nhjtsuL7b7mTVMFc7kEU1xGfJ53dsGjtPpveDkSpfUsf5rO+n1uu8CBLh 8bbc5nXSPsSWYr/a1/eBBQBVUNL5H2f+tFemz2mxJuovPcTcCbEGiXiDOmWtp0JyXI QG6BpI3HY34L0gIlPJ4oem2aNcFY1S0Qyi1hOXmwYKyC9FmjGsMFcNibqcG3gqaL9H LfmfYU4KvL2/g== Date: Wed, 1 Apr 2026 12:17:30 +0100 From: Mark Brown To: Andrew Morton Cc: Anthony Yznaga , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, david@kernel.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, jannh@google.com, pfalcato@suse.de, Jason@zx2c4.com, shuah@kernel.org Subject: Re: [PATCH v2 2/2] selftests/mm: verify droppable mappings cannot be locked Message-ID: References: <20260310155821.17869-1-anthony.yznaga@oracle.com> <20260310155821.17869-2-anthony.yznaga@oracle.com> <52bec9ea-5627-4ea2-8f27-f1729957fa47@sirena.org.uk> <20260331141714.b2f4e41b494060e55610a5f3@linux-foundation.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="JxsWWm5ZucbJodln" Content-Disposition: inline In-Reply-To: <20260331141714.b2f4e41b494060e55610a5f3@linux-foundation.org> X-Cookie: "Yo baby yo baby yo." X-Rspamd-Queue-Id: 3083940013 X-Stat-Signature: doubduxko547nfugk9f4ugzqe8kjmxe7 X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1775042256-691560 X-HE-Meta: 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 dFtuEnB0 SFdcWtYcL2bgbmcaLLAb7cz8KNDEM0vMTCi0niE/CNrMSaPPAtlZ6UWSnuckaDXTlqgDGDjzWlZ76lhqkkRBNH+vrtj2dVxV4QstTMtYORpiEwOAflVb/vCLm0HE2RJZbAdJ2nwSO94Q2CGwXiHccBqUMlcNs6S3DZVflTg59XWXgQHDpOplISYGuzbajZegCqCF2enZ9TDqUJX1GEBarQ7RlTRRqM4nopApWAbDZOzuK/IYm8qEwRR64Qfxxc18wN1MsC5BLveQWblDim7fO4iti0Ly8OjuKpNgOM+jRZZhJVHbgkfQkRXzeHCKaso4dblgxQQVkzQrBIsUgZJ68NQEOlDyLbp/1mHOkKrnTLkTUKEI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --JxsWWm5ZucbJodln Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Mar 31, 2026 at 02:17:14PM -0700, Andrew Morton wrote: > On Tue, 31 Mar 2026 14:17:50 +0100 Mark Brown wrote: > > All these failures which cause the entire test program to immediately > > die seem exceessively strong... > Well, is the test code incorrect, or is the patch which it's testing > incorrect? That's 5435ba164b0d ("mm: prevent droppable mappings from > being locked")? I've done no investigation on the actual failure, sorry - the comment above is a stylistic/usability one about the test program. --JxsWWm5ZucbJodln Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmnM/skACgkQJNaLcl1U h9CnEAf8D+qC45AiMzqQRSdGPBaX2a40RNgSp2rCACIzsmXr1xk7NNZ1k+XlQc2I BMlDKY7emJ7ZDKoEdOFE4ghdlkNyLSpx3fY/p9Iu+tiN7cE4G14FJzmuqg9QY0DR vNPFvJGsKVeCIAz5Rf4DsB2NwFCR3iD1iJNXe2LpjqNb9xDxL2823/F5jLXGeR9e K0PN6ABceEV2fFUeXLg9O3iNp/0A7tbSfGirAlu0pebo+8Po+wISeXk5G/qNRn1w IxqJ+HGTGiwAPcCmDs8LeOf816+NMN1XQ8vU3XkVXanViBgfjfYPcF0HRTey7M6j w2yh4lWvUy1Gsn/uAr9LbLdR6jNhdg== =T9t+ -----END PGP SIGNATURE----- --JxsWWm5ZucbJodln--