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[198.145.29.99]) by mx.google.com with ESMTPS id u188si2642507pfu.228.2019.05.21.19.10.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 May 2019 19:10:51 -0700 (PDT) Received-SPF: pass (google.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=KIGFNpsD; spf=pass (google.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 157A6217D7; Wed, 22 May 2019 02:10:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558491051; bh=1ih48PI12kkUWV1gxUVEAlub4RsQgr7FS/vJ1I+lyVA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=KIGFNpsDdLIOqnE7XDF5rYo0tqQY9FfacESF9YLB4BPT4od6Lx5POSWD/pxhrNCaR BW4MvmqV471h3ck5LHF2z+9/OEZDNUkx7X+Q2qbEI2Dxl3wk+mxwFqhLm8KAZqf5ZB X6Z7JKA9ePiZfYMjNNaurLH1DEAuFC+nrdqNbKnc= Date: Tue, 21 May 2019 19:10:50 -0700 From: Andrew Morton To: kbuild test robot Cc: Marco Elver , kbuild-all@01.org, aryabinin@virtuozzo.com, dvyukov@google.com, glider@google.com, andreyknvl@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, kasan-dev@googlegroups.com Subject: Re: [PATCH] mm/kasan: Print frame description for stack bugs Message-Id: <20190521191050.b8ddb9bb660d13330896529e@linux-foundation.org> In-Reply-To: <201905190408.ieVAcUi7%lkp@intel.com> References: <20190517131046.164100-1-elver@google.com> <201905190408.ieVAcUi7%lkp@intel.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Sun, 19 May 2019 04:48:21 +0800 kbuild test robot wrote: > Hi Marco, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on linus/master] > [also build test WARNING on v5.1 next-20190517] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Marco-Elver/mm-kasan-Print-frame-description-for-stack-bugs/20190519-040214 > config: xtensa-allyesconfig (attached as .config) > compiler: xtensa-linux-gcc (GCC) 8.1.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # save the attached .config to linux build tree > GCC_VERSION=8.1.0 make.cross ARCH=xtensa > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot > This, I assume? --- a/mm/kasan/report.c~mm-kasan-print-frame-description-for-stack-bugs-fix +++ a/mm/kasan/report.c @@ -230,7 +230,7 @@ static void print_decoded_frame_descr(co return; pr_err("\n"); - pr_err("this frame has %zu %s:\n", num_objects, + pr_err("this frame has %lu %s:\n", num_objects, num_objects == 1 ? "object" : "objects"); while (num_objects--) { @@ -257,7 +257,7 @@ static void print_decoded_frame_descr(co strreplace(token, ':', '\0'); /* Finally, print object information. */ - pr_err(" [%zu, %zu) '%s'", offset, offset + size, token); + pr_err(" [%lu, %lu) '%s'", offset, offset + size, token); } } _