On Mon, Apr 18, 2005 at 12:35:04AM -0600, Chris Friesen wrote:
> In the telecom space it's quite common to want to modify multiple
> running binaries with as little downtime as possible.
OK
> (Beyond a threshold it becomes FCC-reportable in the US, and
> everyone wants to avoid that...)
That's beside the point.
> Our old proprietary OS had explicit support for replacing running
> binary code on the fly, so customers have gotten used to the
> ability. Now they want equivalent functionality with our
> linux-based stuff.
*Why* do they need this is what I asked. A sensible real world
example would be useful.
> For general application support I suspect some kernel support will
> be required. Whether this is the way to go or whether it can be
> done using existing mechanisms, I'm not knowledgeable enough to
> comment.
I used to work in telco space, we had some such systems and similar
things. Some from Nortel even.
None of the things I saw did anything that I can image really need a
complicated kernel patch for.
In fact, I'm not convinced *any* of these uses really needed
live-patching at all.
I would just like some examples of real-world needs and an explanation
of why it's needed. Not handy-waving.
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