Re: SystemTap on Fedora 11

[Maynard Johnson <maynardj at us dot ibm dot com>]

David Smith wrote:
> Maynard Johnson wrote:
> > Frank Ch. Eigler wrote:
> > > Maynard Johnson <maynardj@us.ibm.com> writes:
> > >
> > > > I plan on doing some systemtap development on a Fedora 11 G5 box.
> > > > Started out by just installing the F11 systemtap rpm [...]
> > > We're hoping to push a new release to F11/rawhide soon, since the
> > > prior one is known to have incompatibilities with the kernel.  Please
> > > try a build out of systemtap git.
> > I tried building and running with source from systemtap git and I'm
> > seeing the same parsing errors.  As the instructions at
> > http://sources.redhat.com/git/?p=systemtap.git;a=blob_plain;f=README;hb=HEAD
> > indicate, I left the F11-supplied systemtap rpm installed.  Is that the
> > right thing to do?  I put my own systemtap build in /usr/local.  I also
> > tried runing 'make installcheck', and that resulted in many errors.  My
> > system kernel level is 2.6.29-0.74.rc3.git3.fc11.ppc64.
> >
> > Any other suggestions?
>
> One thing to do is make sure which systemtap you were running.  If you
> just ran 'stap', you probably got the one from the F11-supplied
No, /usr/local is first in my PATH.
> systemtap rpm.  Try running the following command and let us know what
> happens:
>
> # /usr/local/bin/stap -ve 'probe begin {printf("hello\n"); exit()}'
OK, running this was helpful.  It pointed at the need for "kernel-devel 
package', which this system did have a kernel-devel package installed.  But when 
I started to look more closely, I saw mismatches in kernel versions between the 
running kernel and the kernel-devel package (kernel-debuginfo package, too).  I 
*think* I have all that straightened out now.  Now, when I run the above 
command, I get further.  Here's the output.  I'll dig into it on Monday.
------
[ppcteam@localhost ~]$ sudo /usr/local/bin/stap -ve 'probe begin 
{printf("hello\n"); exit()}'
Pass 1: parsed user script and 47 library script(s) in 640usr/50sys/695real ms.
Pass 2: analyzed script: 1 probe(s), 1 function(s), 0 embed(s), 0 global(s) in 
10usr/0sys/8real ms.
Pass 3: using cached 
/home/ppcteam/.systemtap/cache/44/stap_4449db3bfcad42c34a15064adafe91cf_348.c
Pass 4: using cached 
/home/ppcteam/.systemtap/cache/44/stap_4449db3bfcad42c34a15064adafe91cf_348.ko
Pass 5: starting run.
Error inserting module 
'/tmp/stapUvlh6p/stap_4449db3bfcad42c34a15064adafe91cf_348.ko': Invalid module 
format
Retrying, after attempted removal of module 
stap_4449db3bfcad42c34a15064adafe91cf_348 (rc -1)
Error inserting module 
'/tmp/stapUvlh6p/stap_4449db3bfcad42c34a15064adafe91cf_348.ko': Invalid module 
format
Pass 5: run completed in 0usr/30sys/49real ms.
Pass 5: run failed.  Try again with another '--vp 00001' option.
[ppcteam@localhost ~]$

-------

Thanks.
-Maynard
>