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=-4.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 2747CC433DF for ; Thu, 23 Jul 2020 10:58:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 033572086A for ; Thu, 23 Jul 2020 10:58:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="NR1oEuUI"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="X2m722nO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728461AbgGWK6t (ORCPT ); Thu, 23 Jul 2020 06:58:49 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:57330 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728287AbgGWK6t (ORCPT ); Thu, 23 Jul 2020 06:58:49 -0400 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1595501927; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=SAkg0hRUGM84cfj7xyLPVMU8cCtxGEg+z0smkN7cgHU=; b=NR1oEuUINtF6tOvwtLyh4bvSzJsGz5MPWJU2dUvtBPIfSE+V5+mUwV1MpQhf+rRriHEVE4 1HzyLXDrdrM5UonRnPcwTEjFnF32auN7qb9xSqoBk49QnNjdOaYpHO1Q4+FPI2RtDbX4ah qVgFeeCiTECHP+1SjsBO6PZBjhNZseTzHw9Yx1W9vRsfbtHTZT3GAAjN36o5dLznye3q5Q yFyLMZfS6J9bYADwVB6y84Rvf0FAGsk3M5oXQpVRyN7u7lWXParP6rgxwCNovfdCHNL+DG ZusVSQrH3aP40wq6mcUCUSx5KcKvluJ+vmZSEU/SS/j5BsKkoTbCkIDydMU1vQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1595501927; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=SAkg0hRUGM84cfj7xyLPVMU8cCtxGEg+z0smkN7cgHU=; b=X2m722nOUT0Rsd4CwSIYHdqyN0BvEZd3F45Cx+6cTbEcGHehMw2LybUdb+zxxRbS0kbaAX +SCPqDx/ZGR4RbDQ== To: kernel test robot , qianjun.kernel@gmail.com Cc: peterz@infradead.org, will@kernel.org, luto@kernel.org, linux-kernel@vger.kernel.org, urezki@gmail.com, laoar.shao@gmail.com, jun qian , 0day robot , lkp@lists.01.org Subject: Re: [Softirq] a76eadba0d: WARNING:at_net/mac80211/rx.c:#ieee80211_rx_napi[mac80211] In-Reply-To: <20200723091715.GL19262@shao2-debian> References: <20200723091715.GL19262@shao2-debian> Date: Thu, 23 Jul 2020 12:58:46 +0200 Message-ID: <87v9iexztl.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kernel test robot writes: > [ 106.856151] WARNING: CPU: 5 PID: 4569 at net/mac80211/rx.c:4708 ieee80211_rx_napi+0x44d/0x560 [mac80211] Bah. I clearly should have noticed when looking at the patch. pending = softirq_pending(); set_softirq_pending(0); while (pending) { .... if (timeout) break; } That drops everything which has not yet been processed and the above warning is due to this. Thanks, tglx