Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754348AbYLHWbN (ORCPT ); Mon, 8 Dec 2008 17:31:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753165AbYLHWaj (ORCPT ); Mon, 8 Dec 2008 17:30:39 -0500 Received: from sith.mimuw.edu.pl ([193.0.96.4]:26619 "EHLO sith.mimuw.edu.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754081AbYLHWah (ORCPT ); Mon, 8 Dec 2008 17:30:37 -0500 X-Greylist: delayed 469 seconds by postgrey-1.27 at vger.kernel.org; Mon, 08 Dec 2008 17:30:36 EST Date: Mon, 8 Dec 2008 23:22:46 +0100 From: Jan Rekorajski To: linux-kernel@vger.kernel.org Cc: Holger Hoffstaette , netdev@vger.kernel.org, "Rafael J. Wysocki" , Greg KH , stable@kernel.org, Stefan Richter Subject: Re: Nasty regression from .27.7 to .27.8: idle samba goes crazy Message-ID: <20081208222246.GA29232@sith.mimuw.edu.pl> Mail-Followup-To: Jan Rekorajski , linux-kernel@vger.kernel.org, Holger Hoffstaette , netdev@vger.kernel.org, "Rafael J. Wysocki" , Greg KH , stable@kernel.org, Stefan Richter References: <200812080834.22924.rjw@sisk.pl> <493D4F5C.7020606@s5r6.in-berlin.de> <493D7349.10200@s5r6.in-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <493D7349.10200@s5r6.in-berlin.de> X-Operating-System: Linux 2.6.26.5 i686 User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1406 Lines: 32 On Mon, 08 Dec 2008, Stefan Richter wrote: > >>> On Monday, 8 of December 2008, Holger Hoffstaette wrote: > >>>> The system is a generic old single-core P4 box with a single SATA drive, > >>>> Gentoo userland and Samba is 3.0.33 (in async mode). The kernel has no > >>>> patches or binary drivers. > > Holger, it may be unrelated to the issue, but to be sure: Which network > card driver do you use? I think you can safely rule out NIC, I'm also seeing this behaviour on a brand new server with imap hanging in some busy-loop. Network card in my case: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12) What I observer was one CPU doing 100% system work, and the number of timer interrupts went from 1k per second to 4k (for the whole system). I didn't report it because I thought it's one of patches I have to blame. Oh, and, unfortunately, I can't bisect, I'm seeing this only on one machine that has to be running. Jan -- Jan Rekorajski | ALL SUSPECTS ARE GUILTY. PERIOD! bagginsmimuw.edu.pl | OTHERWISE THEY WOULDN'T BE SUSPECTS, WOULD THEY? BOFH, MANIAC | -- TROOPS by Kevin Rubio -- 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/