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([2620:15c:2cd:203:5cdc:422c:7b28:ebb5]) by smtp.gmail.com with ESMTPSA id v70sm22011752pfa.152.2018.12.17.09.32.58 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 17 Dec 2018 09:32:58 -0800 (PST) Message-ID: <1545067977.185366.436.camel@acm.org> Subject: Re: cdbeb78c7a ("kernel/workqueue: Use dynamic lockdep keys for .."): WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:1002 lockdep_register_key From: Bart Van Assche To: kernel test robot Cc: LKP , linux-kernel@vger.kernel.org Date: Mon, 17 Dec 2018 09:32:57 -0800 In-Reply-To: <5c17230f.mbgTPR4404Mp8abU%lkp@intel.com> References: <5c17230f.mbgTPR4404Mp8abU%lkp@intel.com> Content-Type: text/plain; charset="UTF-7" X-Mailer: Evolution 3.26.2-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2018-12-17 at 12:16 +-0800, kernel test robot wrote: +AD4 Greetings, +AD4 +AD4 0day kernel testing robot got the below dmesg and the first bad commit is +AD4 +AD4 https://github.com/bvanassche/linux for-next +AD4 +AD4 commit cdbeb78c7a2e34af6d6cc5d3570a585a23eea8e9 +AD4 Author: Bart Van Assche +ADw-bvanassche+AEA-acm.org+AD4 +AD4 AuthorDate: Fri Nov 9 09:53:31 2018 -0800 +AD4 Commit: Bart Van Assche +ADw-bvanassche+AEA-acm.org+AD4 +AD4 CommitDate: Fri Dec 14 11:24:37 2018 -0800 +AD4 +AD4 kernel/workqueue: Use dynamic lockdep keys for workqueues +AD4 +AD4 +AFs ... +AF0 +AD4 +AD4 60e521015c locking/lockdep: Add support for dynamic keys +AD4 cdbeb78c7a kernel/workqueue: Use dynamic lockdep keys for workqueues +AD4 9294000d6d IB/srp: Drain the send queue before destroying a QP +AD4 +------------------------------------------------------------+-------------+-------------+----------------------+- +AD4 +AD4 +AHw 60e521015c +AHw cdbeb78c7a +AHw bvanassche/for-next +AHw +AD4 +AD4 +------------------------------------------------------------+-------------+-------------+----------------------+- +AD4 +AD4 boot+AF8-successes +AHw 915 +AHw 305 +AHw 0 +AHw +AD4 +AD4 boot+AF8-failures +AHw 1 +AHw 7 +AHw 310 +AHw +AD4 +AD4 INFO:rcu+AF8-preempt+AF8-self-detected+AF8-stall+AF8-on+AF8-CPU +AHw 1 +AHw +AHw +AHw +AD4 +AD4 EIP:smp+AF8-call+AF8-function+AF8-single +AHw 1 +AHw +AHw +AHw +AD4 +AD4 BUG:kernel+AF8-hang+AF8-in+AF8-boot-around-mounting-root+AF8-stage +AHw 1 +AHw +AHw +AHw +AD4 +AD4 WARNING:at+AF8-kernel/locking/lockdep.c:+ACM-lockdep+AF8-register+AF8-key +AHw 0 +AHw 7 +AHw +AHw +AD4 +AD4 EIP:lockdep+AF8-register+AF8-key +AHw 0 +AHw 7 +AHw +AHw +AD4 +AD4 WARNING:kernel+AF8-stack +AHw 0 +AHw 0 +AHw 310 +AHw +AD4 +AD4 +------------------------------------------------------------+-------------+-------------+----------------------+- The +ACI-WARNING:at+AF8-kernel/locking/lockdep.c:+ACM-lockdep+AF8-register+AF8-key+ACI warnings have already been removed from my branch so I think this report can be ignored. Bart.