From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: Odd behaviour of device in response to idleimmediate with unload Date: Tue, 04 Nov 2008 14:39:53 -0500 Message-ID: <4910A509.1030307@rtr.ca> References: <871vxrzssj.fsf@denkblock.local> <491026AB.1090704@kernel.org> <20081104123211.A86321FD5A@chi.die-welt.net> <49108120.6000205@rtr.ca> <491083CC.5050508@rtr.ca> <49108AA0.1080507@rtr.ca> <491090BC.5060403@rtr.ca> <20081104185444.3BE721FDF7@chi.die-welt.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:52282 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751091AbYKDTjN (ORCPT ); Tue, 4 Nov 2008 14:39:13 -0500 In-Reply-To: <20081104185444.3BE721FDF7@chi.die-welt.net> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Evgeni Golov Cc: Tejun Heo , Elias Oltmanns , linux-ide@vger.kernel.org, Alan Cox Evgeni Golov wrote: > On Tue, 04 Nov 2008 13:13:16 -0500 Mark Lord wrote: > >> Okay, hdparm-9.3 is now out in the wild (sourceforge), >> and has --idle-immediate and --idle-unload flags now, >> so it can be used to help debug/test this problem. > > Okay, got it, built it. > Neither --idle-immediate nor --idle-immediate brings up the reset, > echo 1000 > /sys/block/sda/device/unload_heads does. .. Mmmm.. okay, this is new stuff in 2.6.28, and it appears to just issue a --idle-unload equivalent after a delay. But it does it from within libata-eh, so I suppose there must be some confusion in there somewhere. So it's up to Tejun now, I suppose. Cheers