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[Bug kprobes/2408] [RHEL4 U4] Backport Kprobes fixes from mainline


------- Additional Comments From hien at us dot ibm dot com  2006-03-13 21:28 -------
(In reply to comment #14)
> (In reply to comment #13)
> > Josh, thanks for testing. For kprobe fault handler testing you can run the 
> > below script. Basically this tries to access userspace 
> > address from kprobe prehandler.
> > 
> > ----------------------------- 
> > probe syscall.*, syscall.*.return {
> >         if (pid() == target()) {
> >                 if (returnp)
> >                         printf("%d\n", returnval())
> >                 else
> >                         printf("%s (%s) = ", name, argstr)
> >         }
> > }
> > -------------------------------
> 
> After commenting out some unresolved functions from i686/syscalls.stp, this test
> script ran fine.  I don't know if there's a particular target application that's
> good for testing this - I used 'du' on my home directory.

You can try to run this script as 

stap -x <pid> sys.stp

where pid is the pid of a bash shell, then go to that shell and try out commands
like
chdir, rmdir, cat etc... 

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=2408

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