From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 28 Jan 2001 07:12:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 28 Jan 2001 07:11:56 -0500 Received: from finch-post-10.mail.demon.net ([194.217.242.38]:4101 "EHLO finch-post-10.mail.demon.net") by vger.kernel.org with ESMTP id ; Sun, 28 Jan 2001 07:11:48 -0500 Date: Sun, 28 Jan 2001 12:11:47 +0000 To: linux-kernel@vger.kernel.org Subject: Re: 2.4.1-pre8 losing pages Message-ID: <20010128121147.A1877@colonel-panic.com> Mail-Followup-To: pdh, linux-kernel@vger.kernel.org In-Reply-To: <20010126194605.A923@colonel-panic.com> <200101261948.f0QJm6q09263@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200101261948.f0QJm6q09263@flint.arm.linux.org.uk>; from rmk@arm.linux.org.uk on Fri, Jan 26, 2001 at 07:48:05PM +0000 From: Peter Horton Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 26, 2001 at 07:48:05PM +0000, Russell King wrote: > Peter Horton writes: > > The corruption is dependent on having a swapped on swap partition. If I > > "swapoff" the corruption goes away, but it comes back when I "swapon" > > again. I feel this a kernel bug, but as I'm the only person out here who's > > seeing it I'm at a loss ... > > The reason I ask is that on an ARM box running plain 2.4.0 with swap > enabled I get rather a lot of SEGVs. Turn swap off, and I don't see > any. > > It sounds like it may be related. > Okay, scratch that. It does still happen when there's no swap, but for some reason it happens a lot less often. Looks like it's timing related, it only fails when using 7200rpm drives, not older 5400rpm ones (even though they too are using UDMA33). I've ruled out the filing system, the IDE controller, the drives and the RAM, so that leaves the kernel or the CPU - I'll try and beg/borrow/steal another CPU and try that. I can compile kernels / run X whilst the test is running without a problem so it looks like it's the bulk write that's the problem. P. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/