From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Dreaded PDC irq nobody cared Date: Thu, 06 Oct 2005 15:09:56 +0900 Message-ID: <4344BFB4.4080600@gmail.com> References: <1128079936.6097.16.camel@localhost.localdomain> <1128329273.4237.9.camel@localhost.localdomain> <1128506696.4964.28.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from wproxy.gmail.com ([64.233.184.193]:4975 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S1751237AbVJFGKC (ORCPT ); Thu, 6 Oct 2005 02:10:02 -0400 Received: by wproxy.gmail.com with SMTP id 57so178344wri for ; Wed, 05 Oct 2005 23:10:01 -0700 (PDT) In-Reply-To: <1128506696.4964.28.camel@localhost.localdomain> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Erik Slagter Cc: Linux IDE Erik Slagter wrote: > On Mon, 2005-10-03 at 10:47 +0200, Erik Slagter wrote: > >>> - is there any chance booting with noapic would make a difference? I >>>must say my apic is a bit flaky (according to the logs) >> >>BTW I tried noapic, it did seem to work for two days, but then again >>crashed with the same problem :-( > > > I have played around a little more and found these interesting results. > > - The difference between having or having not the stuck interrupt seems > to be the forced cooling of the attached harddisks; I find this also > very hard to believe, but it is very reproducable; so to anyone having > problems with the promise sata controllers I'd recommend buying > dedicated harddisk coolers. > - I did a test run with disabling of "stuck" interrupts disabled and I > can say: the interrupt is really stuck, it's no kernel bug; after some > time I rebooted and the controller (or harddisk) still was in a confused > state (no booting possible at all), only after an hour it started > working again; indeed looks like a heat problem. Sounds like you got a faulty drive or really bad ventilation in your case. -- tejun