From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Unknown SATA PIIX PCI device ID 0x29b6 Date: Tue, 11 Mar 2008 20:37:50 +0900 Message-ID: <47D66F0E.9020703@gmail.com> References: <20080228225603.2764bfd1@core> <47CFADDF.20200@gmail.com> <47D0C9E6.8090301@gmail.com> <47D3723B.3040700@gmail.com> <47D485EC.1060103@gmail.com> <47D53231.30107@gmail.com> <47D66071.7010906@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from wx-out-0506.google.com ([66.249.82.233]:53104 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752276AbYCKLh6 (ORCPT ); Tue, 11 Mar 2008 07:37:58 -0400 Received: by wx-out-0506.google.com with SMTP id h31so2455998wxd.4 for ; Tue, 11 Mar 2008 04:37:57 -0700 (PDT) In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Guennadi Liakhovetski Cc: Alan Cox , linux-kernel@vger.kernel.org, Jeff Garzik , linux-ide@vger.kernel.org Hello, Guennadi Liakhovetski wrote: >> Guennadi Liakhovetski wrote: >>> Well, I am not sure, whether it helps, tried booting with both 1.5Gbps and >>> this patch, it recovers now within 30 sec in both cold- and hot-plug >>> cases. To really state, that it has improved from about 55 sec down to 30 >>> sec one would need more testing. Is this the kind of improvement you >>> expected? >> Not really. :-P >> >>> Can it be, that with this hardware it just cannot get better? >>> Remember, the disk is an external eSATA enclosure with a (relatively new) >>> PATA disk inside. >> Can you try out a shorter cable? I had a lot of troubles with eSATA + >> long cable + PMP combinations. Using shorter cable usually solves the >> problem for me. > > Well, this cable is only about 50cm long, or even shorter, and using a > shorter one would be difficult there, even if I manage to get hold of one. > But, in principle, if this is not a generic ahci problem that needs to be > solved, I personally can somehow live with it. Having to wait 1 minute is > not very nice, but so far not critical. 50cm gotta be short enough. For intel ahci, it definitely isn't a general problem but it would still be nice if we can find out what's going on but I don't have much idea what to do next. I'll keep your problem in mind and see whether any pattern emerges. If you find out something new, please let us know. Thanks. -- tejun