Squid AIX notes for the FAQ

From Gerard Eviston:

<cgonzalez> hi mate
<cgonzalez> a few notes for when you get back ...
<cgonzalez> my seemingly bizarre coredumps on aix are solved
<cgonzalez> for a >256MB RSS on aix the xcoff header needs to have
o_maxdata set
<cgonzalez> oops not rss as such, just stack+heap+ublock+kernelstack
<cgonzalez> with ibm's ld this is done by linking with
-bmaxdata:{insert_nonzero_number_here}
<cgonzalez> with gld too bad so sad it seems but echo '\0200\0\0\0'|dd
of=squid bs=4 count=1 seek=19 conv=notrunc doest the trick
<cgonzalez> thats straight out of ibm's docco and was how i got it to
work
<cgonzalez> the thing that threw me was that the core dumps were not all
256MB, they varied quite a bit
<cgonzalez> stack and other fluctuations i guess
<cgonzalez> side effects: possibly a significantly larger backing store
(this wasnt clear to me from the docs)
<cgonzalez> the nozero maxdata enables large program support
<cgonzalez> bmaxdata's valuse is unused unless another flag is set that
enables vlery large program support

I'm not sure where this should go in the FAQ, probably in OS
weirdness's.

Rob