Blocking read as in Bug 5449

Hi,

today I stumbled over the problem as described in
http://bugs.mysql.com/bug.php?id=5449.
If one unplugs the network cable from a machine running a MySQL server
existing client connections will block inside a read call for about 15
minutes and sometimes even longer (I had one process hanging until I killed
it after an hour).

Although there is a patch available (http://lists.mysql.com/internals/27637)
I've got a few questions that I'd like you opinion or help on:

Why is the fix not included in 4.1.14? Is it not tested enough?

Why does the patch not work? When I do a patch -p1 < patchfile I get errors
like
Hunk #1 FAILED at 81.
Hunk #2 FAILED at 149.
Hunk #3 FAILED at 189.
3 out of 3 hunks FAILED -- saving rejects to file include/violite.h.rej

Is there a plan for fixing the problem in 4.0 (which is our current production
platform)?

If I do need to build MySQL from source, are the parameters used to configure
MySQL's production releases available?


Any help is much appretiated.

Cheers
Frank

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