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McKenney" To: Sachin Sant Cc: linuxppc-dev , linux-next@vger.kernel.org, open list , Zqiang Subject: Re: [next-20230322] Kernel WARN at kernel/workqueue.c:3182 (rcutorture) Message-ID: Reply-To: paulmck@kernel.org References: <139BEB3F-BC1C-4ABA-8928-9A8EF3FB5EDD@linux.ibm.com> <233B28DA-70DD-4AD8-9C72-1FFCA6EFE56D@linux.ibm.com> <23F7ADE0-0B96-4257-8910-6B678E0F0C7A@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <23F7ADE0-0B96-4257-8910-6B678E0F0C7A@linux.ibm.com> X-Spam-Status: No, score=-5.2 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 24, 2023 at 08:47:38AM +0530, Sachin Sant wrote: > > >>> Hello, Sachin, and it looks like you hit something that Zqiang and I > >>> have been tracking down. I am guessing that you were using modprobe > >>> and rmmod to make this happen, and that this happened at rmmod time. > >>> > >> Yes, the LTP test script rcu_torture.sh relies on modprobe to load/unload > >> the rcutorture module. > >> > >>> Whatever the reproducer, does the following patch help? > >> > >> Thank you for the patch. Yes, with this patch applied, the test completes > >> successfully without the reported warning. > > > > Very good, thank you! May we have your Tested-by? > > Tested-by: Sachin Sant Thank you, and I will apply on the next rebase. Thanx, Paul