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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 2A3D1C07E9C for ; Thu, 8 Jul 2021 01:09:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D439E60FF3 for ; Thu, 8 Jul 2021 01:09:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D439E60FF3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C65866B009D; Wed, 7 Jul 2021 21:09:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C3C1B6B009E; Wed, 7 Jul 2021 21:09:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B2C416B009F; Wed, 7 Jul 2021 21:09:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0070.hostedemail.com [216.40.44.70]) by kanga.kvack.org (Postfix) with ESMTP id 912866B009D for ; Wed, 7 Jul 2021 21:09:30 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id F35CA23E6D for ; Thu, 8 Jul 2021 01:09:29 +0000 (UTC) X-FDA: 78337637658.12.9A5E893 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf08.hostedemail.com (Postfix) with ESMTP id 7FDE130000A0 for ; Thu, 8 Jul 2021 01:09:29 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 068B160BD3; Thu, 8 Jul 2021 01:09:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1625706568; bh=DXvXhYbO3HjQDt85yKqre7Otf62nPSqrdc2J57kZmis=; h=Date:From:To:Subject:In-Reply-To:From; b=NjijErjRypEe5n77HIl5ShPglHMT22hxySEQHa7OsQtt2yw18GhL7U41RvZHUyG96 nAp2MMFC6yBcpmeuUip/pdKO3vlIisXe4f6/JluCZ9ONbYINMDAB3lRL7jXX2xuyHz hZGzgx1nfAHDt9/KEIE0f20WDph8CRYgsIFwU0yQ= Date: Wed, 07 Jul 2021 18:09:27 -0700 From: Andrew Morton To: akpm@linux-foundation.org, andriy.shevchenko@linux.intel.com, ast@kernel.org, bhe@redhat.com, bp@alien8.de, catalin.marinas@arm.com, dyoung@redhat.com, evgreen@chromium.org, hsinyi@chromium.org, jeyu@kernel.org, jolsa@kernel.org, khlebnikov@yandex-team.ru, linux-mm@kvack.org, linux@rasmusvillemoes.dk, mingo@redhat.com, mm-commits@vger.kernel.org, pmladek@suse.com, rostedt@goodmis.org, sashal@kernel.org, sergey.senozhatsky@gmail.com, swboyd@chromium.org, tglx@linutronix.de, torvalds@linux-foundation.org, vgoyal@redhat.com, will@kernel.org, willy@infradead.org Subject: [patch 37/54] x86/dumpstack: use %pSb/%pBb for backtrace printing Message-ID: <20210708010927.q7HSqwnZw%akpm@linux-foundation.org> In-Reply-To: <20210707175950.eceddb86c6c555555d4730e2@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Stat-Signature: fuc75kp9rdzk351scssn3rfyhuafk8t8 X-Rspamd-Queue-Id: 7FDE130000A0 X-Rspam-User: nil X-Rspamd-Server: rspam01 Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=NjijErjR; dmarc=none; spf=pass (imf08.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-HE-Tag: 1625706569-731069 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: From: Stephen Boyd Subject: x86/dumpstack: use %pSb/%pBb for backtrace printing Let's use the new printk formats to print the stacktrace entries when printing a backtrace to the kernel logs. This will include any module's build ID[1] in it so that offline/crash debugging can easily locate the debuginfo for a module via something like debuginfod[2]. Link: https://lkml.kernel.org/r/20210511003845.2429846-8-swboyd@chromium.org Link: https://fedoraproject.org/wiki/Releases/FeatureBuildId [1] Link: https://sourceware.org/elfutils/Debuginfod.html [2] Signed-off-by: Stephen Boyd Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Jiri Olsa Cc: Alexei Starovoitov Cc: Jessica Yu Cc: Evan Green Cc: Hsin-Yi Wang Cc: Petr Mladek Cc: Steven Rostedt Cc: Andy Shevchenko Cc: Matthew Wilcox Cc: Baoquan He Cc: Catalin Marinas Cc: Dave Young Cc: Konstantin Khlebnikov Cc: Rasmus Villemoes Cc: Sasha Levin Cc: Sergey Senozhatsky Cc: Vivek Goyal Cc: Will Deacon Signed-off-by: Andrew Morton --- arch/x86/kernel/dumpstack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/kernel/dumpstack.c~x86-dumpstack-use-%psb-%pbb-for-backtrace-printing +++ a/arch/x86/kernel/dumpstack.c @@ -69,7 +69,7 @@ static void printk_stack_address(unsigne const char *log_lvl) { touch_nmi_watchdog(); - printk("%s %s%pB\n", log_lvl, reliable ? "" : "? ", (void *)address); + printk("%s %s%pBb\n", log_lvl, reliable ? "" : "? ", (void *)address); } static int copy_code(struct pt_regs *regs, u8 *buf, unsigned long src, _