Re: 4.4.1 regression from 4.1.x: Soekris net5501 crash in IRQ after mfgpt timer initialization

From	Nix <nix@esperi.org.uk>
Newsgroups	linux.kernel
Subject	Re: 4.4.1 regression from 4.1.x: Soekris net5501 crash in IRQ after mfgpt timer initialization
Date	2016-02-02 17:10 +0100
Message-ID	<qXLGG-5wZ-9@gated-at.bofh.it> (permalink)
References	<qXKri-4kd-79@gated-at.bofh.it> <qXKri-4kd-77@gated-at.bofh.it> <qXKKC-4KV-13@gated-at.bofh.it> <qXLx2-59N-39@gated-at.bofh.it>
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On 2 Feb 2016, Thomas Gleixner verbalised:

> On Tue, 2 Feb 2016, Nix wrote:
>> The fairly trivial code motion below also seems to work, and may be more
>> like an actual fix, though I'm a bit horrified that it's this simple. I
>> may well have moved too much and unknowingly violated some invariant.
>
> I was lazy and did not do this, because it wreckages the error pathes. So I
> went for the workaround in the hope that the authors of that stuff will take
> care :)

Oh true.

As far as I can tell, getting this right requires a function that
reverses the effect of clockevents_config_and_register(), which does not
appear to exist yet :( everything else appears more or less
reversible...

-- 
NULL && (void)

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Re: 4.4.1 regression from 4.1.x: Soekris net5501 crash in IRQ after  mfgpt timer initialization Thomas Gleixner <tglx@linutronix.de> - 2016-02-02 15:50 +0100
  Re: 4.4.1 regression from 4.1.x: Soekris net5501 crash in IRQ after mfgpt timer initialization Nix <nix@esperi.org.uk> - 2016-02-02 16:10 +0100
    Re: 4.4.1 regression from 4.1.x: Soekris net5501 crash in IRQ after  mfgpt timer initialization Thomas Gleixner <tglx@linutronix.de> - 2016-02-02 17:00 +0100
      Re: 4.4.1 regression from 4.1.x: Soekris net5501 crash in IRQ after mfgpt timer initialization Nix <nix@esperi.org.uk> - 2016-02-02 17:10 +0100

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