Messages in this thread | | | Date | Fri, 17 Nov 2006 06:58:29 +0000 | From | Christoph Hellwig <> | Subject | Re: changing internal kernel system mechanism in runtime by a module patch |
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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) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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