From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: Re: [PATCH v2] Add suspend/resume for HPET Date: Sat, 31 Mar 2007 18:09:47 +0200 Message-ID: <1175357387.28263.31.camel@localhost.localdomain> References: <460BBD1B.4040308@ru.mvista.com> <200703291531.18253.maximlevitsky@gmail.com> <200703291546.48996.maximlevitsky@gmail.com> <1175356272.28263.27.camel@localhost.localdomain> Reply-To: tglx@linutronix.de Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org To: Jeff Chua Cc: Maxim Levitsky , Sergei Shtylyov , Linus Torvalds , Ingo Molnar , Adrian Bunk , Andrew Morton , Linux Kernel Mailing List , "Eric W. Biederman" , "Rafael J. Wysocki" , pavel@suse.cz, linux-pm@lists.osdl.org, gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz, Jens Axboe , Len Brown , linux-acpi@vger.kernel.org, jgarzik@pobox.com, linux-ide@vger.kernel.org, "Michael S. Tsirkin" List-Id: linux-pm@vger.kernel.org On Sun, 2007-04-01 at 00:01 +0800, Jeff Chua wrote: > On 3/31/07, Thomas Gleixner wrote: > > > Jeff still seems to have problems with CONFIG_NO_HZ=n and it might be > > caused by time keeping / tick management resume happening before the > > HPET resume. > > > me>Confirmed that suspend/resume disk/ram works on X60s with > me>CONFIG_HPET_TIMER=y and CONFIG_NO_HZ unset. > me> But suspend to disk still hang with CONFIG_NO_HZ unset. > > > Oops, sorry. Typo (as a result copy/paste using mouse) > ... I actually meant CONFIG_NO_HZ "set". > > Just to be clear, suspend to disk still hang with CONFIG_NO_HZ=y. It > hang just before you see the percent saving %. Ah, that's a different one then. In that path the timers should be alive, but who knows. tglx