From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from colo.lackof.org (colo.lackof.org [198.49.126.79]) by dsl2.external.hp.com (Postfix) with ESMTP id D98974843 for ; Wed, 18 Feb 2004 23:29:08 -0700 (MST) Date: Wed, 18 Feb 2004 23:29:07 -0700 From: Grant Grundler To: Stuart Brady Subject: Re: [parisc-linux] Hanging with kernels >= 2.4.22 Message-ID: <20040219062907.GC13916@colo.lackof.org> References: <20040218235225.GA1623@calypso> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20040218235225.GA1623@calypso> Cc: parisc-linux@lists.parisc-linux.org List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, Feb 18, 2004 at 11:52:25PM +0000, Stuart Brady wrote: > I'm having problems with kernels >= 2.4.22 on a 715/100. [ delete descriptions of hang symptoms ] Stuart, All your symptoms point at disk IO hanging. Setting the default queue depth to 1 would be worth trying. I've forgotten the details for setting queue depth. search parisc-linux mailing list archives "scsi queue tags". http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022087.html btw, 715/50 is NOT the same as 715/100. 715/100 should have "coherent" DMA and 715/50 does not. Maybe a FAQ entry for "715/xxx hangs" could be your first contribution? hth, grant