Re: [PATCH RT 3/4] net: netfilter: Serialize xt_write_recseq sectionson RT

From: Thomas Gleixner
Date: Thu Nov 01 2012 - 19:02:13 EST


On Thu, 1 Nov 2012, Peter LaDow wrote:

> On Thu, Nov 1, 2012 at 2:26 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> > Cough. You are missing a boat load of crucial fixes. There is a damned
> > good reason why 3.0.stable got 12 updates and the -rt version 14.
>
> I don't doubt there are. But we've only experienced one problem
> between 3.0.36-rt58 and 3.0.48-rt72. Indeed, it might be easier to
> evaluate the risk if all the changelogs were readily available. So
> far, however, we haven't discovered any other issues that give us any
> concerns.
>
> > Your risk assessment is definitley interesting.
>
> We have specifically tested 3.0.36-rt58 for performance in our
> application. Moving to 3.0.48-rt72 poses risk about whether would
> still be able to meet our performance requirements. And with regard
> to stability, the only issue we've had since our earlier moved to
> 3.0.36-rt58 was the netfilter problem. We initially only saw the
> problem on PPP related interfaces, so we reverted to 3.0.3 (non-rt)
> for PPP related issues.
>
> Now, if you think there are some issues that should raise eyebrows, or
> can point me to a list of changelogs, I'd be happy to evaluate them.

git log v3.0.36-rt58..3.0.48-rt72

That's what a source version control system is designed for AFAICT

Thanks,

tglx
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