backwards compability of systemtap

[John Liang]

HI there,

It looks array syntax like "foobar["string",1]" is not supported 
in stap version 0.5.4 which comes with redhat 4 update 3. But it is 
definitely supported in stap Version 0.5.8 of redhat 4 update 4. 

I am wondering if there is a way to run the compiled the module/C code
of version 0.5.8 on redhat 4 update 3. If yes, then it means I can 
use the most recent features of systemtap to old version of redhat
releases. 

When I try this, I got the following message from /var/log/messages:

Mar 12 09:51:19 perf8 kernel: stap_7948: disagrees about version of symbol
register_kprobe
Mar 12 09:51:19 perf8 kernel: stap_7948: Unknown symbol register_kprobe

Any comments?

Thanks,
--
John Liang