From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: Re: Odd suspend regression in 2.6.21-rc[123] Date: Mon, 12 Mar 2007 10:42:46 -0500 Message-ID: <200703121142.46705.lenb@kernel.org> References: <45F0C018.2020409@madrabbit.org> <45F24DCE.8060902@madrabbit.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:36291 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030459AbXCLPux (ORCPT ); Mon, 12 Mar 2007 11:50:53 -0400 In-Reply-To: <45F24DCE.8060902@madrabbit.org> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Ray Lee Cc: Adrian Bunk , Linus Torvalds , LKML , "Rafael J. Wysocki" , Alexey Starikovskiy , Vladimir Lebedev , linux-acpi@vger.kernel.org On Saturday 10 March 2007 01:18, Ray Lee wrote: > Ray Lee wrote: > > In 2.6.21-rc1,2,3, my laptop will fully suspend to ram, but then > > *immediately* resumes back from suspension. (It resumes just fine, as well.) > [...] > > HP/Compaq NX6125 system, AMD64, dmesg attached. > > hg bisect found the below patch as the culprit, and reverting it does > fix the regression. It's supposed to address "sometime ac/battery update > stops after resume from disk." This thread: > http://lkml.org/lkml/2007/2/24/111 appears to talk about the same issue, > and therefore it may be solved without the below patch, so perhaps we > can all be happy. > > Regardless, I think my laptop no longer being able to go into S3 sleep > is a bit more important than someone else's laptop merely not showing > the correct AC status :-). > > Please revert. (git patch id ed41dab90eb40ac4911e60406bc653661f0e4ce1) I'd rather not break the Acer, if possible. Ray, Please test the incremental patch below. --- Subject: ACPI: resolve GPE immediate wakeup regression From: Alexey Starikovskiy Removing disabling of GPEs from enter_sleep function causes regression on nx6125. Doing disable_all_gpes both in prepare to sleep and in enter sleep resolves regression, while still fixes Acer notebooks. Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/hardware/hwsleep.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c index 8fa9312..c84b1fa 100644 --- a/drivers/acpi/hardware/hwsleep.c +++ b/drivers/acpi/hardware/hwsleep.c @@ -300,6 +300,11 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) /* * 2) Enable all wakeup GPEs */ + status = acpi_hw_disable_all_gpes(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + acpi_gbl_system_awake_and_running = FALSE; status = acpi_hw_enable_all_wakeup_gpes();