From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752224Ab3LJDyt (ORCPT ); Mon, 9 Dec 2013 22:54:49 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:11174 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751959Ab3LJDyr (ORCPT ); Mon, 9 Dec 2013 22:54:47 -0500 X-AuditID: cbfee6a3-b7f186d0000073e2-ca-52a6908420b2 Date: Tue, 10 Dec 2013 03:54:44 +0000 (GMT) From: Anurag Aggarwal Subject: Re: [PATCH V6] ARM : unwinder : Prevent data abort due to stack overflow To: Dave Martin Cc: "linux-arm-kernel@lists.infradead.org" , Naveen Kumar , Narendra Meher , "nico@linaro.org" , "catalin.marinas@arm.com" , "will.deacon@arm.com" , "linux-kernel@vger.kernel.org" , Ashish Kalra , "cpgs ." , "anurag19aggarwal@gmail.com" , "naveenkrishna.ch@gmail.com" , Rajat Suri , Poorva Srivastava , Mohammad Irfan Ansari Reply-to: a.anurag@samsung.com MIME-version: 1.0 X-MTR: 20131210034807821@a.anurag Msgkey: 20131210034807821@a.anurag X-EPLocale: en_US.windows-1252 X-Priority: 3 X-EPWebmail-Msg-Type: personal X-EPWebmail-Reply-Demand: 0 X-EPApproval-Locale: X-EPHeader: ML X-EPTrCode: X-EPTrName: X-MLAttribute: X-RootMTR: 20131210034807821@a.anurag X-ParentMTR: X-ArchiveUser: X-CPGSPASS: Y Content-type: text/plain; charset=windows-1252 MIME-version: 1.0 Message-id: <16479184.50751386647682015.JavaMail.weblogic@epv6ml09> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrNIsWRmVeSWpSXmKPExsVy+t/tGbotE5YFGTSf17K4vGsOmwOjx+dN cgGMUVw2Kak5mWWpRfp2CVwZV//0MBY8Y684/WA1UwPjCfYuRk4OIQFlid6969lAbAkBE4lF l3dA2WISF+6BxLmAauYzSkxoeMMIkmARUJXYNPErE4jNJqArMfHGFWYQW1ggUOLY/UNAQzk4 RATUJY7uswTpZRY4xSrxaf1DJohlchJ3120Hq+cVEJQ4OfMJC0i9hICixOZNXBBhJYnO+RNZ IW6Qk1gy9TIThM0rMaP9KQtMfNrXNcwQtrTE+VkbGGFuXvz9MVScX+LY7R1MEON5JZ7cD4YZ s3vzF6gXBSSmnjkI1aomcfrFd6g4n8SahW9ZYMbsOrWcGaa3YeNvcLAxA108pfshlG0gcWTR HFZUX4HYzhLLfu1nmsAoNwtJahaS9llI2pHVLGBkWcUomlqQXFCclF5hrFecmFtcmpeul5yf u4kRHOXPFu9g/H/e+hCjAAejEg9vAcOyICHWxLLiytxDjBIczEoivJ51QCHelMTKqtSi/Pii 0pzU4kOM0hwsSuK88beSgoQE0hNLUrNTUwtSi2CyTBycUg2MPHZXtZfNMXszOyB8ls26h59K TNa/Wdr7iVdWK6tBTFuq3tG0cuWDX6lFm3uvehtt8fzFWRx2NnV/e+nbaZdmvkwo4qusma75 YWrJ1utKCyx/H0o3FpBm37XiauO0M1PtDoRE+v7Nm7ZV+06I351g02e6i9btM+lNe1Wx3Vv2 Jdeaz3tW7N/mp8RSnJFoqMVcVJwIAOcEQsPuAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id rBA3ssUb011039 >Reviewed-by: Dave Martin > >I can confirm that the kernel "doesn't crash" with this applied, and >that backtracing at least partially works. But this is not really >sufficient to demontrate that the now code works better than the old >code in corner cases (which is the point of the patch). > >Can you give details of what additional testing you have, or plan to >do? We saw a data abort in unwinder for one of Samsung Project, during a Samsung Automation test case. After that I created the initial the patch, and the data abort has not been seen till now. Is it possible for you to give an idea on what other kind of additional testing do you have in mind. Regads Anurag {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I