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Re: your mail


* Eugeniy Meshcheryakov <eugen@debian.org> [070214 11:14]:
> Hello,
> 
> 14 ÐÑÑÐÐÐ 2007 Ð 09:46 +0100 Andreas Kostyrka ÐÐÐÐÑÐÐ(-ÐÐ):
> > Hi!
> > 
> > I've tried installing the stap unstable debian deb package, and when
> > running:
> > 
> > stap -kvvvve 'probe begin { log("hello world") exit () }'
> > 
> > I'm ending up with the following error:
> > 
> >  _stp_valid_stack_ptr
> >  __stp_stack_sprint
> >  _stp_kta
> > cc1: warnings being treated as errors
> > 
> > In file included from /tmp/stapK6sE6e/stap_cd13387bbd7b988ef3adb3156acd8fbb_306.c:36:
> > /usr/share/systemtap/runtime/stack.c:73: warning: 'struct kretprobe_instance' declared inside parameter list
> > /usr/share/systemtap/runtime/stack.c:73: warning: its scope is only this definition or declaration, which is probably not what you want
> >  _stp_stack_sprint
> I cannot reproduce it with kernel 2.6.20 and systemtap 0.0.20070113-1 but it looks like stack.c should
> include kprobes.h . Does it fix the problem?

Ok, I've found the "problem". My kernel is not configured with
CONFIG_KPROBES. Guess it would be a nice thing to add a 
#if !defined(CONFIG_KPROBES) /* plus whatever else is needed */
#error your kernel is not configured for kprobes. Sorry.
#endif

into the source, instead of producing obscure error messages.

Andreas


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