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]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA1D7C001DC for ; Mon, 17 Jul 2023 17:22:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7844B6B0074; Mon, 17 Jul 2023 13:22:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 733268D0001; Mon, 17 Jul 2023 13:22:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6229E6B0078; Mon, 17 Jul 2023 13:22:38 -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 564266B0074 for ; Mon, 17 Jul 2023 13:22:38 -0400 (EDT) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 0864D1A04D8 for ; Mon, 17 Jul 2023 17:22:38 +0000 (UTC) X-FDA: 81021773196.14.B420FBA Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf24.hostedemail.com (Postfix) with ESMTP id 44ACC180017 for ; Mon, 17 Jul 2023 17:22:36 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=MQkRFGtG; spf=pass (imf24.hostedemail.com: domain of broonie@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=broonie@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1689614556; 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=rJXSMbXopHvzaOfxutArZHo4YpzR2mCSg0JUfvuSo4s=; b=G1aaqrqyzhXVW1gHG7HBhrTtGF4EZELrgFYlWlQylHEB+Yz6lBfObuYvBDq30ZzXWJ6xFC 3cTznkv+eTfbSDFtNQJ2SzTWpJOmUlfEC6YrZWUf0wTridynOYPstUmiGM98TFfMSuQsMW csboRdZkkkbCB+f/LkOttZ4OaGZ+S34= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=MQkRFGtG; spf=pass (imf24.hostedemail.com: domain of broonie@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=broonie@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1689614556; a=rsa-sha256; cv=none; b=tCErY9tbZa7wauZlCgI+QSShMwisX3HuhshtFRqlE4a53xGQko0r7QpCccJJh77C5R7Sg/ Y79ZsVLskIPxkI1u1mCmM4wDSvqTfzlMQXOquAKO+yyDhAK/6IBAX8nXcZ4FMKcpOFEhBx KfMkhhlxsLDvzZl6krOdzQB4BRmPCtM= Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 50DBC61174; Mon, 17 Jul 2023 17:22:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6517BC433C8; Mon, 17 Jul 2023 17:22:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1689614554; bh=rJXSMbXopHvzaOfxutArZHo4YpzR2mCSg0JUfvuSo4s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=MQkRFGtGNL8T040HYhnYUjPCQxbvFtQ/z6Fi4MkctAqMvaJytUL5Iz0z+URs/jaV0 +CzsoymzCfwuPz5PwZW/2d2KyapSIeC1rq6CpZ6pkR/RYpjc3MVOFEa+oDaoEAW8oV /dQpwIJKlCUof4mK7W+JeksIimG4ixiz8kwpa0FGrNAS4Lt8Kgn4QsKL7Opcpz0T4+ 53p1q2gnLgDcDpC5Nac/Kol2gvBjRqLBRfutheSeNmJZFB6vEac6p0B8FWljCTob1J glGfodVUXJ/DPRhBG/SKBXzhuy9TO7QJT66N3N8tynSSptzBd9RsyXMmEKuCBUJIEu jpgfzlwv6nNaA== Date: Mon, 17 Jul 2023 18:22:29 +0100 From: Mark Brown To: Ryan Roberts Cc: Andrew Morton , Shuah Khan , =?iso-8859-1?B?Suly9G1l?= Glisse , David Hildenbrand , John Hubbard , Florent Revest , Peter Xu , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v2 1/8] selftests: Line buffer test program's stdout Message-ID: <180a7944-2b35-4fc4-a1b4-e93b45c52247@sirena.org.uk> References: <20230717103152.202078-1-ryan.roberts@arm.com> <20230717103152.202078-2-ryan.roberts@arm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3rH2O9kFg8eWmXkE" Content-Disposition: inline In-Reply-To: <20230717103152.202078-2-ryan.roberts@arm.com> X-Cookie: Not a flying toy. X-Rspamd-Queue-Id: 44ACC180017 X-Rspam-User: X-Stat-Signature: kd9nhnz1r7je3cffbk4xat78tco9w19a X-Rspamd-Server: rspam01 X-HE-Tag: 1689614556-134335 X-HE-Meta: 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 d7uq845V Nr9Eb45r/+6U5z2s9rFuvngDrUFUMH41ci+rLS1RKZ+/eRVeA/BXpyxm7qYPsdz81cw1urb3DYvGwLx/ZDW9GnxosyDA7LJmQQo6Zvp3mAv1u5Kz4bpOLETB8XAwjEtp77I5lVBzqqroN3IQlAmMxSpPW/H57z+OlHz86NAW1b5Bbdr/iOVDrVm/6HXOfvS4FeOqw1/UGL0IgKvbxuvxnnIKD0YF2iUcJWW7DC5+C8ypTZj+34w3Cp8TWS8RzMiXk5osFljuQg5Py/hPp6z5G3w1jLkctLYBwf+HQfjsuEnQcsLLk9PDp7RuJ1cYmFqXhZLQfcnE6JlesKu+AFy22OUzZyscd8vDw9uDrl5A96AluqQ6+BiguwUFJNi4R1zCGvFi938JdgkVNM962CSID4+2KbQ== 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: --3rH2O9kFg8eWmXkE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Jul 17, 2023 at 11:31:45AM +0100, Ryan Roberts wrote: > The selftests runner pipes the test program's stdout to tap_prefix. The > presence of the pipe means that the test program sets its stdout to be > fully buffered (as aposed to line buffered when directly connected to > the terminal). The block buffering means that there is often content in Reviewed-by: Mark Brown --3rH2O9kFg8eWmXkE Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmS1eNQACgkQJNaLcl1U h9CxrQf/aTBtyZVA84+LhCY4xEOt9mFkBSgx0gaWyZyFJ20HdfstopxPffmapASL fEM4sEF93ITJ+Zh+p9n940WlZm/0rDBAHxWQW0WX4Gq5qQBWeo5N9n60k4b+sMux YdW5Q+Iea1lABda8jd2+VXXeNs/O98RuzbxHufDErLtMeXzofynzcoeBXFaNm4/v JcjbOJrmBEVCsIKJIrtqTAO0Qj3Tadc+9sjmnqCv5b+w/9yjNCF1SL3lK60iBlHr FELwmtvF/IeZC2SfJjD9Xh69b7qG3qHYXoe4jnppkY7j8HcSqK/twpLGI+CYeR72 cCD5HaYcGabeOJyezTTesdZZhx7j1w== =9cXt -----END PGP SIGNATURE----- --3rH2O9kFg8eWmXkE--