From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Slagter Subject: Re: Dreaded PDC irq nobody cared Date: Mon, 10 Oct 2005 12:31:18 +0200 Message-ID: <1128940278.4775.50.camel@localhost.localdomain> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=sha1; protocol="application/x-pkcs7-signature"; boundary="=-Wmp8mIR6MTnBOOGVMl1V" Return-path: Received: from mx1.wlz.nl ([194.53.3.6]:3718 "HELO mx1.wlz.nl") by vger.kernel.org with SMTP id S1750739AbVJJKcH (ORCPT ); Mon, 10 Oct 2005 06:32:07 -0400 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Hahn Cc: Linux IDE --=-Wmp8mIR6MTnBOOGVMl1V Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sat, 2005-10-08 at 13:17 -0400, Mark Hahn wrote: > > > > - The difference between having or having not the stuck interrupt = seems > > > > to be the forced cooling of the attached harddisks; I find this als= o > ... > > - various people have this problem with various brands and models disk= s > > - the temperature of the disks is ~40 C, without cooling, and also ~40 > > C with cooling (?!) according to smartctl attribute 195, so either the > > temperature sensors are wrong (silly location?) or it really doesn't > > matter?! > > - I cannot pinpoint the problem to one harddisk, and probably never > > will, because the problem only occurs with > 1 harddisk > > connected :-( (as the other people experience) > > - the temperature in the case is not very cool but also not extremely > > hot, imho it shouldn't bother the harddisks. >=20 > you added ventilation to your case, and the problem went away. > this doesn't mean the problem was disk temperature, especially > since your disks report no real change. instead, I suggest that=20 > your PSU was too hot and regulating poorly. greater airflow=20 > resulted in better regulation, and made the disks happier. > (note another recent message here regarding a similar problem machine > which was fixed by providing better power...) This may very well at least have something to do with the problem. I must say that the air coming from the PSU is rather warm. 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