Re: irq-disabled vs vmap vs text_poke

[Peter Zijlstra]

On Fri, 2009-02-13 at 11:32 -0500, Masami Hiramatsu wrote:

> >> Anybody got an idea on how to fix this?
> > 
> > There is probably something wrong with the caller, kprobes, which calls
> > text_poke with interrupts off.
> 
> Hmm, kprobe's smoke test caused this problem. Since (un)register_kprobe()
> may sleep for waiting a mutex, it should not be called with interrupts off.
> So, it's not text_poke()'s issue nor vmap().

Yeah, since noticed that, trying to figure out where the irq-disable
came from.. somewhat mysterious.
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