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=-11.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C5805C4361B for ; Sat, 19 Dec 2020 15:03:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 819FC233FC for ; Sat, 19 Dec 2020 15:03:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726774AbgLSPDC (ORCPT ); Sat, 19 Dec 2020 10:03:02 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:54977 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726694AbgLSPDB (ORCPT ); Sat, 19 Dec 2020 10:03:01 -0500 X-UUID: 86bea7f473a84533b9a6bee3d06a20bc-20201219 X-UUID: 86bea7f473a84533b9a6bee3d06a20bc-20201219 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1606627720; Sat, 19 Dec 2020 23:02:17 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 19 Dec 2020 23:02:12 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 19 Dec 2020 23:02:12 +0800 From: Lecopzer Chen To: CC: , , , , , , , , , , Subject: Re: [PATCH] kernel/watchdog_hld.c: Fix access percpu in preemptible context Date: Sat, 19 Dec 2020 23:02:14 +0800 Message-ID: <20201219150214.16854-1-lecopzer.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201219135917.GA26344@xsang-OptiPlex-9020> References: <20201219135917.GA26344@xsang-OptiPlex-9020> MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: 6C92B1F47AD0D5D53445CCE32F782C2A76744CD57D55A2985EB4F3FF929C696E2000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org BRs, Lecopzer > Greeting, > > FYI, we noticed the following commit (built with gcc-9): > > commit: 6e37d53a67753bcb12a0b9102cac85d98f8a0453 ("[PATCH] kernel/watchdog_hld.c: Fix access percpu in preemptible context") > url: https://github.com/0day-ci/linux/commits/Lecopzer-Chen/kernel-watchdog_hld-c-Fix-access-percpu-in-preemptible-context/20201217-211549 > base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git accefff5b547a9a1d959c7e76ad539bf2480e78b > > in testcase: boot > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot >