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 8E9FBC433EF for ; Tue, 19 Apr 2022 04:20:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 29BC48D0026; Tue, 19 Apr 2022 00:20:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 24A356B00CB; Tue, 19 Apr 2022 00:20:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 111708D0026; Tue, 19 Apr 2022 00:20:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.28]) by kanga.kvack.org (Postfix) with ESMTP id F39226B00CA for ; Tue, 19 Apr 2022 00:20:46 -0400 (EDT) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id CB901213AF for ; Tue, 19 Apr 2022 04:20:46 +0000 (UTC) X-FDA: 79372327692.07.A9D7199 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf11.hostedemail.com (Postfix) with ESMTP id C5DCA40003 for ; Tue, 19 Apr 2022 04:20:44 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E7756B810FD; Tue, 19 Apr 2022 04:20:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67DE2C385AE; Tue, 19 Apr 2022 04:20:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1650342043; bh=SkMyO5ksvmtWgBk5Fo1VJ5mXQrgD0cTZ5AqLxQU89Eo=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=b+olHbyuknbDEbqf8tnzIOD9Hpco+gBk9i99p/Gr8p5ADUSS2r6IzyA2mVYDV5zOJ ZZXBvLzr6gRe8dKVwqq784JDZwLpfhFrQ/vyn8ms2n7XcrLDgynBUYxFtj1LwBBm55 MRj4EaOPgqbBhWlUvrpgYIg0QW3EN9rTlTMvGfbA= Date: Mon, 18 Apr 2022 21:20:42 -0700 From: Andrew Morton To: "Zhang, Qiang1" Cc: "ryabinin.a.a@gmail.com" , "glider@google.com" , "andreyknvl@gmail.com" , "dvyukov@google.com" , "bigeasy@linutronix.de" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" Subject: Re: [PATCH v2] kasan: Fix sleeping function called from invalid context on RT kernel Message-Id: <20220418212042.ae77c3c7ad51d95e59d6f78a@linux-foundation.org> In-Reply-To: References: <20220401134649.2222485-1-qiang1.zhang@intel.com> <20220415113456.2f24660a610e4f35fd72970a@linux-foundation.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: C5DCA40003 X-Rspam-User: Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=b+olHbyu; spf=pass (imf11.hostedemail.com: domain of akpm@linux-foundation.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Stat-Signature: 4trh85aiyks34g7jjwcgxkra1pwuqdwj X-HE-Tag: 1650342044-959530 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: On Sat, 16 Apr 2022 02:47:43 +0000 "Zhang, Qiang1" wrote: > >Note that it incorporates the changes from your https://lkml.kernel.org/r/20220414025925.2423818-1-qiang1.zhang@intel.com > > > >btw, how are we supposed to test PREEMPT_RT builds? I had to patch arch/Kconfig. > > The attachment is a config file and I test with linux-5.17.y-rt branch (https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git), I have been tested. OK, but it's a problem that we're adding CONFIG_PREEMPT_RT code to the mainline kernel without providing for it to be at least compile-tested. Sebastian, is there something we can do here to increase the coverage testing?