From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759471AbYDAL7p (ORCPT ); Tue, 1 Apr 2008 07:59:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758853AbYDAL7A (ORCPT ); Tue, 1 Apr 2008 07:59:00 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:48046 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753109AbYDAL67 (ORCPT ); Tue, 1 Apr 2008 07:58:59 -0400 Date: Tue, 1 Apr 2008 11:59:24 +0200 From: Pavel Machek To: Oliver Neukum Cc: Mark Lord , Linux Kernel , Greg KH , Andrew Morton , jikos@suse.cz Subject: Re: 2.6.25-rc7: Ugh. Message-ID: <20080401095924.GC8247@elf.ucw.cz> References: <47EBBD57.30902@rtr.ca> <47F11D8F.4020209@rtr.ca> <47F11FC6.8010701@rtr.ca> <200803312005.37804.oliver@neukum.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <200803312005.37804.oliver@neukum.org> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > But suspend *with* any USB device plugged-in, and it *always* fails resume, > > even when the USB device is unplugged before hitting the resume button. > > > > Conclusion:   the bug is in the usb SUSPEND code, not the RESUME code. > > I would arrive at the opposite conclusion. Independent from that, loss of > power is not really supported by USB during STR. Obviously it should not > hang, but all devices will be disconnected and reconnected. All devices disconnected / reconnected is expected, but it has to work. Machines like thinkpad x60 kill USB power during s2ram. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html