Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966010Ab2FAXG1 (ORCPT ); Fri, 1 Jun 2012 19:06:27 -0400 Received: from violet.fr.zoreil.com ([92.243.8.30]:59958 "EHLO violet.fr.zoreil.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965935Ab2FAXG0 (ORCPT ); Fri, 1 Jun 2012 19:06:26 -0400 Date: Sat, 2 Jun 2012 00:57:54 +0200 From: Francois Romieu To: Thomas Gleixner Cc: Dave Jones , Linux Kernel Subject: Re: NOHZ: local_softirq_pending 08 Message-ID: <20120601225754.GA25281@electric-eye.fr.zoreil.com> References: <20120530214809.GA19223@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.2i X-Organisation: Land of Sunshine Inc. Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 744 Lines: 22 Thomas Gleixner : [ > So it goes idle with NET_RX softirq pending. That really should not > happen. I fear you need to fire up the tracer :) Can you elaborate what "should not happen" mean ? AFAIU nothing prevents softirq to be interrupted after NET_RX processing and thus NET_RX_SOFTIRQ to be pending again before tick_nohz_irq_exit() runs. Dave can you: - specify if there much traffic when the message appears - send /proc/interrupts + ethtool -S ethX Thanks. -- Ueimor -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/