Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH] x86: revert "x86: Fix S4 regression" | Date | Fri, 15 Jun 2012 21:09:54 +0200 |
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On Friday, June 15, 2012, Takashi Iwai wrote: > At Fri, 15 Jun 2012 19:11:12 +0800, > Cong Wang wrote: > > > > On Tue, Jun 12, 2012 at 1:21 PM, Cong Wang <amwang@redhat.com> wrote: > > > > > > Takashi, could you help to test if the S4 regression is still > > > there after this patch? > > > > Hello, > > > > Any comments? > > > > I have tested this revert on my laptop, with running simple > > "suspend and resume" test for several times, I didn't see any > > problem. > > Sorry for the late response. > > The problem happens only on certain laptops. I've tested the recent > IvyBridge laptops and these were OK with the reverted patch. But a > SandyBridge laptop, the one I tested in the last year, still hits the > S4 problem with the reverted kernel. > > But, the recent kernels seem to have other S4 problems on this > machine, so it's not 100% clear whether it's triggered by that. > At least, it jumpts to the boot at S4 resume more frequently when the > patch is reverted. > > So, I need to start from 2.6.32 again to see what regressions have > been introduced. It'll take time, since I'd have to S4 20 cycles > for reproducing the bug.
Thanks for doing this, please let me know if there's any way I can help.
Rafael
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