From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Hunter Subject: Re: [patch 61/66] timers: Convert to hotplug state machine Date: Tue, 26 Jul 2016 10:23:02 +0100 Message-ID: <6f2fe6d4-38bf-4feb-1d5e-e2705c333670@nvidia.com> References: <20160711122450.923603742@linutronix.de> <20160711122535.775201614@linutronix.de> <7d37714e-b072-ee90-f14f-364f4fd01f0d@nvidia.com> <20160725153543.GB10939@linutronix.de> <20160725204648.GA22830@linutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160725204648.GA22830-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: rcochran-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org Cc: Anna-Maria Gleixner , LKML , Peter Zijlstra , Ingo Molnar , Sebastian Andrzej Siewior , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-tegra@vger.kernel.org On 25/07/16 21:46, rcochran-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org wrote: > On Mon, Jul 25, 2016 at 05:35:43PM +0200, rcochran-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org wrote: >> I see if I can find a tegra system to test with... > > I tried the tip:smp/hotplug branch under kvm x86_64, and I didn't see > any problems with suspend or hibernate, even with CONFIG_PREEMPT_NONE. > I'll see if I can get my hands on a tegra system tomorrow. Until > then, two questions: > > 1. The issue appears with suspend (echo mem > /sys/power/state), as > opposed to hibernate, right? Yes. I have been using rtcwake to test suspend with the following arguments ... # rtcwake -d rtc1 -m mem -s 3 > 2. CONFIG_PREEMPT_NONE is good, but CONFIG_PREEMPT is bad, right? The other way around. Cheers Jon -- nvpublic