Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 28 Apr 2001 14:24:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 28 Apr 2001 14:24:20 -0400 Received: from e56090.upc-e.chello.nl ([213.93.56.90]:64261 "EHLO unternet.org") by vger.kernel.org with ESMTP id ; Sat, 28 Apr 2001 14:24:05 -0400 Date: Sat, 28 Apr 2001 20:24:08 +0200 From: Frank de Lange To: linux-kernel@vger.kernel.org Subject: Severe trashing in 2.4.4 Message-ID: <20010428202408.A23581@unternet.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi'all, There seems to be something amiss with 2.4.4 wrt. memory management, which leads to severe trashing under *light* load on my SMP box (Abit BP-6 with Maciej's IO-APIC patch). I've had my box become almost unuseable twice within a 4-hour period now. One of those times it was running a compile session, the other time it did not run anything besides some X-terminals and xmms. There's nothing in the log which seems to be related to this trashing. There were no memory-intensive tasks running during the trashing (X was the biggest, with 40 MB (including 32 MB for the video card). When trashing, the system was running bdflush and kswapd, both of which used between 30% and 60% CPU. System load was between 8 and 11, but the actual load feels more like 50-60... I have not found anything yet which triggers the problem. Coupled with the fact that there's nothing in the logs (and nothing sensible to be seen through sysrq). Judging from the thread on the list on the problems with the fork patch (which seems to hit people with SMP systems), it might be related to this, but that's only guessing. Any ideas? Things to try? Cheers//Frank -- WWWWW _______________________ ## o o\ / Frank de Lange \ }# \| / \ ##---# _/ \ #### \ +31-320-252965 / \ frank@unternet.org / ------------------------- [ "Omnis enim res, quae dando non deficit, dum habetur et non datur, nondum habetur, quomodo habenda est." ] - 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/