[PATCH] kprobes for s390 architecture

[Frank Ch. Eigler]

Heiko Carstens <heiko.carstens@de.ibm.com> writes:

> [...]
> > It works, and I guess at this point is the only way to do it. I'll send out a 
> > full patch with this and the other cleanups later.
> 
> How fast is this if you have to exchange several hundred instructions?

That's a very appropriate question.  Related to it is in general how
fast is it to insert and remove ordinary breakpoints on even non-s390
platforms.  Several RH folks recently found that
    probe kernel.function("*") {}
took only a few seconds to insert the probes, but a few *minutes* to
remove them at session shutdown.

- FChE