On Fri, Nov 17, 2006 at 08:47:32AM +0200, Muli Ben-Yehuda wrote:
> > i am talking about a clean/standard way to do such thing
> > (without overwrite the mem address of the function and replace it in a
> > dirty way...)
>
> k42 supports "dynamic hot-swap" and there's been some work done to
> bring it into Linux, see e.g.,
> http://ozlabs.org/pipermail/k42-discussion/2006-October/001615.html.
This kind of stuff is just sick. Better let them play with their research
OS for this kind of thing :) In practice any non-trivial bug fix requires
changes to global data structures so reloading a module doesn't make sense.
And for module-specific problems you should be able to hack around using
kprobes if you really need (but then again for a mission critical system
you should have proper active-active failover clustering anyway)
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