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Sat, 19 Dec 2020 07:04:16 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 19 Dec 2020 07:04:13 -0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 19 Dec 2020 23:04:05 +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 23:04:04 +0800 From: Lecopzer Chen To: Subject: Re: [PATCH] kernel/watchdog_hld.c: Fix access percpu in preemptible context Date: Sat, 19 Dec 2020 23:04:06 +0800 Message-ID: <20201219150406.16925-1-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 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201219_100423_261556_AB5A4221 X-CRM114-Status: GOOD ( 10.17 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sumit.garg@linaro.org, lkp@intel.com, will@kernel.org, yj.chiang@mediatek.com, linux-kernel@vger.kernel.org, lkp@lists.01.org, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, alexandru.elisei@arm.com, linux-arm-kernel@lists.infradead.org, lecopzer.chen@mediatek.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Thanks a lot, I'll try to fix this in anthoer way(patch v2) to avoid regreesion other than arm64 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 > _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek