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SubjectRe: Ptrace hole / Linux 2.2.25

On 03.24, Martin J. Bligh wrote:
> >> O(1) sched may be a bad example ... how about the fact that mainline VM
> >> is totally unstable? Witness, for instance, the buffer_head stuff. Fixes
> >> for that have been around for ages.
> >
> > "totally unstable" being defined as: My computers don't crash, and my
> > 100%-mainline test kernels pass various Cerberus/LTP/crashme runs.
> >
> > Of course, I am not totally focused on multi-million-dollar computers, so
> > maybe my perspective is skewed... ;-)
>
> Last time I checked, a 2x machine with 4Gb of RAM didn't cost millions of
> dollars ;-)
>
> > Fixes should be applied to 2.4-mainline, certainly. Anything else just
> > wastes developer brain cycles and slows the move to 2.6.
>
> Common vendor _features_ is maybe better done in a separate tree, I'd
> accept ... I'm just frustrated with the current lack of commonality between
> distros, I guess.
>

You will never get distros to follow that. A 'featured-kernel-for-distro'...
Just take RH and SuSE (correct me if I'm wrong...)
RH ships -ac. SuSE ships -aa. At least both (-ac and -aa) have O(1) scheduler
now. -ac ships rmap, -aa ships -aa (;)). That means O(1) goes in your kernel,
but how about the VM subsystem ?

But now that -ac does not include rmap, perhaps the VM can be chosen as the
one from Andrea...

(BTW, I have been runnin plan -pres for a couple of weeks, and now that I run
-aa again, my computer looks like a new one...)

--
J.A. Magallon <jamagallon@able.es> \ Software is like sex:
werewolf.able.es \ It's better when it's free
Mandrake Linux release 9.1 (Bamboo) for i586
Linux 2.4.21-pre5-jam1 (gcc 3.2.2 (Mandrake Linux 9.1 3.2.2-3mdk))
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