From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Jenkins Subject: BISECTED: 2.6.29-rc2 regression: hibernation hang on eeepc-701 Date: Thu, 22 Jan 2009 11:30:41 +0000 Message-ID: <497858E1.5070303@tuffmail.co.uk> References: <9b2b86520901180345j434eacbdn7386958991ee50b@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=4o1IkZAi/g7Mor9v7gQ50w1ySakSyM9166lT6RwRqBc=; b=W0cwJquDHpI3dggrY4GAWQrtNCvUGHWN50fgjeY4Yh5550jzjtoHkX1npJFI+F/cnp lxULjZeYOIrwYhNgZneIv9Dx3bZ2Bp2Dg50i+oy+PGpzygs163K5F8Cx42mZLtCCPQ3V HpZ0+Oh1mpOtDfNbYOfo/e/XNwXi+z9wyVH9Q= In-Reply-To: <9b2b86520901180345j434eacbdn7386958991ee50b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" To: kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pm-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, "Rafael J. Wysocki" , Pavel Machek , Jesse Barnes Alan Jenkins wrote: > Hibernation hangs just after writing the image. With s2disk I can see > this from the console messages. The same hang happens with kernel > swsusp ('echo disk | sudo tee /sys/power/state'), and I can see that > the image has been written from the HDD led. > > In either case, I can still hard-power-off and resume from hibernation. > > It doesn't hang if I use the shutdown method (either 'echo shutdown | > sudo tee /sys/power/disk' or 's2disk -P "shutdown method=shutdown"'). > I've bisected this to commit 571ff7584bb9e05fca0eb79752ae55a46faf3a98. It doesn't revert cleanly from RC2. I think it's distinct from the other two reported suspend regressions. I'm not using acpi-cpufreq, and the issue doesn't affect resume. Alan commit 571ff7584bb9e05fca0eb79752ae55a46faf3a98 Author: Rafael J. Wysocki Date: Wed Jan 7 13:05:05 2009 +0100 PCI PM: Power-manage devices without drivers during suspend-resume PCI devices without drivers can be put into low power states during suspend with the help of pci_prepare_to_sleep() and prevented from generating wake-up events during resume with the help of pci_enable_wake(). However, it's better not to put bridges into low power states during suspend, because that might result in entire bus segments being powered off. Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Jesse Barnes :040000 040000 6b6fb7bfa561583f14bdf55b084473dcf9cd1765 d72fbda87eff26db8f2574e868a793b79deb9f92 M drivers