From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [RFT] PCI changes related to wakeup (was: Re: ehci_hcd related S3 lockup on ASUS laptops, again) Date: Sun, 27 May 2012 00:59:03 +0200 Message-ID: <201205270059.04166.rjw@sisk.pl> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Alan Stern Cc: Andrey Rahmatullin , linux-pm@lists.linux-foundation.org, Steven Rostedt , ACPI Devel Mailing List List-Id: linux-pm@vger.kernel.org On Sunday, May 27, 2012, Alan Stern wrote: > On Sun, 27 May 2012, Andrey Rahmatullin wrote: > > > On Sun, May 27, 2012 at 12:06:01AM +0200, Rafael J. Wysocki wrote: > > > > > Andrey, Stephen, > > > > > > > > > > We still have problems with this patch in https://bugzilla.kernel.org/show_bug.cgi?id=43278 > > > > > so some more testing will be necessary, I'm afraid. > > > > > > > > > > I will send a series of ACPI and PCI patches I have collected so far, > > > > > that I'd like you to test on top of kernel 3.4.0 with commit > > > > > 151b61284776 reverted. > > > > > > > > > > Please let me know if suspend/wakeup work for you with these patches applied. > > > > I get the usual freeze on suspending with these patches. > > > > > > I see. > > > > > > Please try to unapply [4/4] and see if that helps. > > It helps. > > Trying to follow the ACPI spec too closely may be a bad idea. We > should try to copy what Windows does (whatever that is!). Well, that's why I made it a separate patch, among other things. :-) So, do you think we should apply [1/4] and [2/4] and try to work around the BIOS bug from https://bugzilla.kernel.org/show_bug.cgi?id=43278 (I suppose we can do that by double checking if the target state returned by ACPI is in agreement with the capabilities returned by the PCI layer)? Rafael