From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761063AbYAVCIp (ORCPT ); Mon, 21 Jan 2008 21:08:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755165AbYAVCIf (ORCPT ); Mon, 21 Jan 2008 21:08:35 -0500 Received: from wa-out-1112.google.com ([209.85.146.179]:9628 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752236AbYAVCIe (ORCPT ); Mon, 21 Jan 2008 21:08:34 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=UQrECeFwylZwGF3uU5ysxuLTKXvyupQ1kSBS0g13IrW0RoHDrQuJhmY4hRtD0Lyd+2riycxKaM7ZC5l6wGP0sDxj4zzc2vkaPtf7Po5qmjjEMuFrtCcRJvpT0Aqd9SxBYiqzMX8jdqa5hiw1rj/rr2bj53lPL1d7hBxsF9hPSiA= Message-ID: <47955018.7000901@gmail.com> Date: Tue, 22 Jan 2008 11:08:24 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.9 (X11/20070801) MIME-Version: 1.0 To: Bartlomiej Zolnierkiewicz CC: Alan Cox , Andrew Morton , Georgi Chulkov , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Mark Lord Subject: Re: ATA device reset, shoud I be concerned? References: <200801140019.20668.g.chulkov@jacobs-university.de> <20080121164744.2f7d0ed1@lxorguk.ukuu.org.uk> <4794D020.4060204@gmail.com> <200801220231.22609.bzolnier@gmail.com> <4795488E.30706@gmail.com> In-Reply-To: <4795488E.30706@gmail.com> X-Enigmail-Version: 0.95.5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tejun Heo wrote: > Bartlomiej Zolnierkiewicz wrote: >> On Monday 21 January 2008, Tejun Heo wrote: >> >> [...] >> >>>> Old IDE says it works for PATA. For SATA I can see it might need more >>>> care and you might simply not be able to get the info. >>> Old IDE often locks up the machine hard after timeouts. I'm all for >> Could you point me to some bugreports? >> >> I would like to know more about hosts/conditions for which it happens. > > It's jmicron and all on-board jmicrons I have show the same problem. > Connect harddrrive to the controller and drive it via jmicron, hot plug > unplug SATA drives continuously, after a while, jmicron says it lost > interrupt and the machine locks up hard. BTW, those hot plug/unplugs don't have any direct relationship with the JMB controller. It's some interference or power issue, I guess. Hot plugging unrelated drives somehow locks up the jmicron driver. :-( -- tejun