From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [Suspend-devel] 2.6.25-rc2 System no longer powers off after suspend-to-disk. Screen becomes green. Date: Thu, 21 Feb 2008 10:34:21 -0800 Message-ID: <200802211034.22056.jesse.barnes@intel.com> References: <200802211727.21593.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from mga03.intel.com ([143.182.124.21]:54110 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753589AbYBUSse (ORCPT ); Thu, 21 Feb 2008 13:48:34 -0500 In-Reply-To: <200802211727.21593.rjw@sisk.pl> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J. Wysocki" Cc: Jeff Chua , Dave Airlie , Greg KH , lkml , linux-acpi@vger.kernel.org, Linus Torvalds , pm list On Thursday, February 21, 2008 8:27 am Rafael J. Wysocki wrote: > On Thursday, 21 of February 2008, Jeff Chua wrote: > > On Thu, Feb 21, 2008 at 8:39 AM, Jesse Barnes wrote: > > > On Wednesday, February 20, 2008 4:35 pm Jeff Chua wrote: > > > > On Thu, Feb 21, 2008 at 5:37 AM, Jesse Barnes > > > > > > > > > > wrote: > > > > > Ok, can you give this patch a try with the 'platform' method? It > > > > > should at least tell us what ACPI would like the device to do at > > > > > suspend time, but it probably won't fix the hang. > > > > It says "calling pci_set_power_state with 3". Then after all then it > > still hangs, and then resume with Mr Green. > > > > PM: Syncing filesystems ... done. > > Freezing user space processes ... (elapsed 0.00 seconds) done. > > Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done. > > PM: Shrinking memory... ^H-^Hdone (0 pages freed) > > PM: Freed 0 kbytes in 0.20 seconds (0.00 MB/s) > > ACPI: Preparing to enter system sleep state S4 > > Suspending console(s) > > sd 0:0:0:0: [sda] Synchronizing SCSI cache > > drm_sysfs_suspend > > ACPI: PCI interrupt for device 0000:00:02.0 disabled > > calling pci_set_power_state with 3 > > So it returns the right value. > > Jeff, Jesse, please check one thing for me. > > Please boot 2.6.25-rc2 (or better, the current head of the Linus' tree) > with no_console_suspend and try to do the following: > > # echo 8 > /proc/sys/kernel/printk > # echo core > /sys/power/pm_test > # echo disk > /sys/power/state > > (that will run a test of the freeze/unfreeze code without creating the > image) and then That comes back for me, without creating the green screen. There's a long delay between it saying "entering S4" and actually resuming back to my console though. > # echo mem > /sys/power/state > > (that will run a test of the suspend/resume code without actually > suspending). > > I'd like to know if that works. This also works (after doing the echo disk > ...) above. There's still a delay between "entering S3" and the resume to my console though. Jesse