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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F17FC433B4 for ; Tue, 11 May 2021 12:36:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 559906190A for ; Tue, 11 May 2021 12:36:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231644AbhEKMhW convert rfc822-to-8bit (ORCPT ); Tue, 11 May 2021 08:37:22 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]:34740 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230436AbhEKMhT (ORCPT ); Tue, 11 May 2021 08:37:19 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-102-AdSWJMpLMF6zU1JX4ZDi6A-1; Tue, 11 May 2021 13:36:08 +0100 X-MC-Unique: AdSWJMpLMF6zU1JX4ZDi6A-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 11 May 2021 13:36:06 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.015; Tue, 11 May 2021 13:36:06 +0100 From: David Laight To: 'Stephen Boyd' , Andrew Morton , Petr Mladek CC: "linux-kernel@vger.kernel.org" , "Alexei Starovoitov" , Andy Shevchenko , Baoquan He , "Borislav Petkov" , Catalin Marinas , Dave Young , Evan Green , Hsin-Yi Wang , Ingo Molnar , Jessica Yu , Jiri Olsa , "kexec@lists.infradead.org" , Konstantin Khlebnikov , "linux-arm-kernel@lists.infradead.org" , "linux-doc@vger.kernel.org" , Matthew Wilcox , "Rasmus Villemoes" , Sasha Levin , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , Vivek Goyal , Will Deacon , "x86@kernel.org" , Christoph Hellwig , peter enderborg Subject: RE: [PATCH v6 00/13] Add build ID to stacktraces Thread-Topic: [PATCH v6 00/13] Add build ID to stacktraces Thread-Index: AQHXRf4HnT90HedmH0WFx6bjKadex6reN/jQ Date: Tue, 11 May 2021 12:36:06 +0000 Message-ID: References: <20210511003845.2429846-1-swboyd@chromium.org> In-Reply-To: <20210511003845.2429846-1-swboyd@chromium.org> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stephen Boyd > Sent: 11 May 2021 01:39 > > This series adds the kernel's build ID[1] to the stacktrace header > printed in oops messages, warnings, etc. and the build ID for any module > that appears in the stacktrace after the module name. The goal is to > make the stacktrace more self-contained and descriptive by including the > relevant build IDs in the kernel logs when something goes wrong. This > can be used by post processing tools like script/decode_stacktrace.sh > and kernel developers to easily locate the debug info associated with a > kernel crash and line up what line and file things started falling apart > at. > > To show how this can be used I've included a patch to > decode_stacktrace.sh that downloads the debuginfo from a debuginfod > server. ... > Here's an example lkdtm stacktrace on arm64. > > WARNING: CPU: 4 PID: 3255 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x28/0x30 [lkdtm] > Modules linked in: lkdtm rfcomm algif_hash algif_skcipher af_alg xt_cgroup uinput xt_MASQUERADE > CPU: 4 PID: 3255 Comm: bash Not tainted 5.11 #3 aa23f7a1231c229de205662d5a9e0d4c580f19a1 > Hardware name: Google Lazor (rev3+) with KB Backlight (DT) ... > x1 : ffffff93fef15788 x0 : ffffffe3622352e0 > Call trace: > lkdtm_WARNING+0x28/0x30 [lkdtm ed5019fdf5e53be37cb1ba7899292d7e143b259e] > direct_entry+0x16c/0x1b4 [lkdtm ed5019fdf5e53be37cb1ba7899292d7e143b259e] > full_proxy_write+0x74/0xa4 Is there any way to get it to print each module ID only once? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales) 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 X-Spam-Level: X-Spam-Status: No, score=-4.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C2759C43460 for ; Tue, 11 May 2021 13:31:00 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 13AB661288 for ; Tue, 11 May 2021 13:31:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 13AB661288 Authentication-Results: mail.kernel.org; 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Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lgRcV-009Zik-T9 for linux-arm-kernel@lists.infradead.org; Tue, 11 May 2021 12:36:17 +0000 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-102-AdSWJMpLMF6zU1JX4ZDi6A-1; Tue, 11 May 2021 13:36:08 +0100 X-MC-Unique: AdSWJMpLMF6zU1JX4ZDi6A-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 11 May 2021 13:36:06 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.015; Tue, 11 May 2021 13:36:06 +0100 From: David Laight To: 'Stephen Boyd' , Andrew Morton , Petr Mladek CC: "linux-kernel@vger.kernel.org" , "Alexei Starovoitov" , Andy Shevchenko , Baoquan He , "Borislav Petkov" , Catalin Marinas , Dave Young , Evan Green , Hsin-Yi Wang , Ingo Molnar , Jessica Yu , Jiri Olsa , "kexec@lists.infradead.org" , Konstantin Khlebnikov , "linux-arm-kernel@lists.infradead.org" , "linux-doc@vger.kernel.org" , Matthew Wilcox , "Rasmus Villemoes" , Sasha Levin , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , Vivek Goyal , Will Deacon , "x86@kernel.org" , Christoph Hellwig , peter enderborg Subject: RE: [PATCH v6 00/13] Add build ID to stacktraces Thread-Topic: [PATCH v6 00/13] Add build ID to stacktraces Thread-Index: AQHXRf4HnT90HedmH0WFx6bjKadex6reN/jQ Date: Tue, 11 May 2021 12:36:06 +0000 Message-ID: References: <20210511003845.2429846-1-swboyd@chromium.org> In-Reply-To: <20210511003845.2429846-1-swboyd@chromium.org> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210511_053616_229018_E67760B2 X-CRM114-Status: GOOD ( 19.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Stephen Boyd > Sent: 11 May 2021 01:39 > > This series adds the kernel's build ID[1] to the stacktrace header > printed in oops messages, warnings, etc. and the build ID for any module > that appears in the stacktrace after the module name. The goal is to > make the stacktrace more self-contained and descriptive by including the > relevant build IDs in the kernel logs when something goes wrong. This > can be used by post processing tools like script/decode_stacktrace.sh > and kernel developers to easily locate the debug info associated with a > kernel crash and line up what line and file things started falling apart > at. > > To show how this can be used I've included a patch to > decode_stacktrace.sh that downloads the debuginfo from a debuginfod > server. ... > Here's an example lkdtm stacktrace on arm64. > > WARNING: CPU: 4 PID: 3255 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x28/0x30 [lkdtm] > Modules linked in: lkdtm rfcomm algif_hash algif_skcipher af_alg xt_cgroup uinput xt_MASQUERADE > CPU: 4 PID: 3255 Comm: bash Not tainted 5.11 #3 aa23f7a1231c229de205662d5a9e0d4c580f19a1 > Hardware name: Google Lazor (rev3+) with KB Backlight (DT) ... > x1 : ffffff93fef15788 x0 : ffffffe3622352e0 > Call trace: > lkdtm_WARNING+0x28/0x30 [lkdtm ed5019fdf5e53be37cb1ba7899292d7e143b259e] > direct_entry+0x16c/0x1b4 [lkdtm ed5019fdf5e53be37cb1ba7899292d7e143b259e] > full_proxy_write+0x74/0xa4 Is there any way to get it to print each module ID only once? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lgRcW-009Zin-5W for kexec@lists.infradead.org; Tue, 11 May 2021 12:36:18 +0000 From: David Laight Subject: RE: [PATCH v6 00/13] Add build ID to stacktraces Date: Tue, 11 May 2021 12:36:06 +0000 Message-ID: References: <20210511003845.2429846-1-swboyd@chromium.org> In-Reply-To: <20210511003845.2429846-1-swboyd@chromium.org> MIME-Version: 1.0 Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: 'Stephen Boyd' , Andrew Morton , Petr Mladek Cc: "linux-kernel@vger.kernel.org" , Alexei Starovoitov , Andy Shevchenko , Baoquan He , Borislav Petkov , Catalin Marinas , Dave Young , Evan Green , Hsin-Yi Wang , Ingo Molnar , Jessica Yu , Jiri Olsa , "kexec@lists.infradead.org" , Konstantin Khlebnikov , "linux-arm-kernel@lists.infradead.org" , "linux-doc@vger.kernel.org" , Matthew Wilcox , Rasmus Villemoes , Sasha Levin , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , Vivek Goyal , Will Deacon , "x86@kernel.org" , Christoph Hellwig , peter enderborg From: Stephen Boyd > Sent: 11 May 2021 01:39 > > This series adds the kernel's build ID[1] to the stacktrace header > printed in oops messages, warnings, etc. and the build ID for any module > that appears in the stacktrace after the module name. The goal is to > make the stacktrace more self-contained and descriptive by including the > relevant build IDs in the kernel logs when something goes wrong. This > can be used by post processing tools like script/decode_stacktrace.sh > and kernel developers to easily locate the debug info associated with a > kernel crash and line up what line and file things started falling apart > at. > > To show how this can be used I've included a patch to > decode_stacktrace.sh that downloads the debuginfo from a debuginfod > server. ... > Here's an example lkdtm stacktrace on arm64. > > WARNING: CPU: 4 PID: 3255 at drivers/misc/lkdtm/bugs.c:83 lkdtm_WARNING+0x28/0x30 [lkdtm] > Modules linked in: lkdtm rfcomm algif_hash algif_skcipher af_alg xt_cgroup uinput xt_MASQUERADE > CPU: 4 PID: 3255 Comm: bash Not tainted 5.11 #3 aa23f7a1231c229de205662d5a9e0d4c580f19a1 > Hardware name: Google Lazor (rev3+) with KB Backlight (DT) ... > x1 : ffffff93fef15788 x0 : ffffffe3622352e0 > Call trace: > lkdtm_WARNING+0x28/0x30 [lkdtm ed5019fdf5e53be37cb1ba7899292d7e143b259e] > direct_entry+0x16c/0x1b4 [lkdtm ed5019fdf5e53be37cb1ba7899292d7e143b259e] > full_proxy_write+0x74/0xa4 Is there any way to get it to print each module ID only once? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales) _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec