On Mon, Jul 15, 2013 at 12:20:19PM +0530, Srivatsa S. Bhat wrote: > On 07/15/2013 10:24 AM, Willy Tarreau wrote: > > On Sun, Jul 14, 2013 at 09:36:25PM -0700, Sören Brinkmann wrote: > >> Hi Greg, > >> > >> since upgrading to 3.10.1 I find my system not waking up from suspend > >> from time to time. Unfortunately, I couldn't figure out how to reliably > >> reproduce the issue. Sometimes it works just fine. > >> > >> All I know so far: > >> On 3.10 I had my system completely freezing a few times. But that did > >> not seem to be related to suspend/resume. I never experienced the > >> behavior described below on 3.10. > >> > >> On 3.10.1 I hit this bug a few times, that my system did not wake up. > >> I.e. the screen stayed black and the power LED kept flashing. But > >> nothing brought the system back up and I had to longpress power to reset > >> the system. > >> I had none of the system freezes like the ones described above anymore. > > > > Fortunately, 3.10.1 is very small. The only patch it contains which is > > related to suspend is 18/19 (cpufreq ondemand governor). Maybe you're > > having a problem with cpufreq on this machine in fact. > > > > You may want to try to force it to performance mode or powersave mode > > and try for a while, it is possible that both 3.10 and 3.10.1 will work > > fine. > > > > Or, you could try applying the patch shown below on top of 3.10.1 and > see if it fixes the suspend/resume regression for you. > > https://lkml.org/lkml/2013/7/11/661 > > (Just apply patch 1, not the entire patchset). Thanks for your answers. I'll give this one a shot and fall back to forcing a different cpufreq governor if it doesn't help. Sören
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