dear people,

i think there's some great confusion here about the usa of the term 
'stable'.

ariel (at least as far as i know) runs systems that bear a rather heavy 
load over network connections. most people run machines that do not bear 
that heavy load. thus, your definition of 'stable' is quite different.

and its a rather known fact, that for realy heavy network, memory and 
processing load on linux, most of the 2.4 kernel series was rather flowed, 
at least until 2.4.18 came out.

a company i worked with encountered lots of woes in this area (running a 
machine with redhat's kernel or any vanilla 2.4.X kernel, about 8-12 
month ago) year back, perhaps 8 month back) in the lab and bombing it with 
traffic while running their application on it (which used a lot of 
memory), caused networking to stop working after several hours or half a 
day, in a repeatable manner. only when then eventually installed a variant 
of the 2.4 kernel with the 'aa' patches - did they manage to have a 
machine running steadily - and that certainly wasn't a tested kernel, back 
then, not to mention QA. 

you can argue that your experience was different as much as you will - but 
the fact was that the VM code caused problems on a machine that was 
hammered heavily the same problem existed with pre 2.4.10 kernels, that is 
2.4.7, 2.4.9, etc). and as far as i know, not all of arcanageli's patches 
went into 2.4.19 (muli - please correct me if i'm wrong regarding this 
merge).

this VM fiasco apparently did not have a parelel during the 2.2 
kernel release cycle, or with earlier versions - it did happen with 2.4 . 

btw, at the same time, another company that used much earlier 2.4 kernels 
with an appliction that performs network processing - did not encounter 
_any_ problem. ofcoruse, they handled traffic flowing at only 10 mega-bit 
per second - and that did not use as much memory. and they were using very 
early 2.4 kernels (including some 2.4-test kernels) - and had no problems.
so from their point of view, 2.4 was stable since quite long ago.

so, i'd say again - stability depends on what you're doing with the 
system. and QA alone cannot fix problems stemming from major bugs in the 
underlying system.

-- 
guy

"For world domination - press 1,
 or dial 0, and please hold, for the creator." -- nob o. dy


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