Re: [Bisected] 3.7-rc1 can't resume

From: H. Peter Anvin
Date: Mon Feb 18 2013 - 11:22:47 EST

Next message: Peter Feuerer: "[PATCH] added three more trip points to acerhdf, this allows thermallayer to correctly handle the two point regulation of acerhdf. Trip point 0will be active from 0 degree to "fanoff" and is marked as passive, then trippoint 1 is valid from "fanoff" to "fanon" value and is marked as active, evenif it's only really active in case temperature is going down from trip point2. Trip point 2 will be valid above "fanon" value and is also marked asactive. Trip point 3 is when hitting the critical temperature."
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I might be able to get my hands on a T43 later this week and see if I can reproduce this. This patch seems more plausible, at least... but still puzzling.

Jonas Heinrich <onny@xxxxxxxxxxxxxxxxxxxx> wrote:

>On 02-17 21:40, Rafael J. Wysocki wrote:
>> Does the commit immediately preceding this one behave correctly?
>Strangely the preceding commit works well, so I bisected the kernel
>again, this time more carefully and I've got a different result!
>(see bisect_log attachement).
>It seems to be commit 73201dbec64aebf6b0dca855b523f437972dc7bb
>(https://patchwork.kernel.org/patch/1511921/).
>Someone on LKML already reported an issue with this commit
>(https://lkml.org/lkml/2012/10/18/228) , but Peter
>Anvins patch got already applied in newer versions.
>Reverting this patch with the recent git clone seems to be difficult
>because it already has too much dependencies.
>
>Additionally I've included dmesg dumps of the last good and the bad
>kernel version.
>
>On 02-17 12:52, H. Peter Anvin wrote:
>> T43 is quite old... which might have exposed unique bugs. How
>reliable is the failure? Even one misidentified commit results in git
>bisect giving garbage.
>It affects really all versions after that commit and the failure
>happens
>every time I try to resume my notebook.
>
>Best regards,
>Jonas

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