Lucio De Re wrote:
> The results of "ktrace /usr/local/bin/backend" are quite enlightening:
> 
> ---- cut ----
> $ cd tmp
> $ ktrace /usr/local/bin/backend
> Memory fault
> $ kdump
>    232 ktrace   RET   ktrace 0
>    232 ktrace   CALL  execve(0xbfbfdcb7,0xbfbfdc6c,0xbfbfdc74)
>    232 ktrace   NAMI  "/usr/local/bin/backend"

Hmm, isn't the binary suid ? Tracing is switched off when suid
binary is executed for non-root.

Jaromir
-- 
Jaromir Dolecek <jdolecek@NetBSD.org>      http://www.ics.muni.cz/~dolecek/
@@@@  Wanna a real operating system ? Go and get NetBSD, damn!  @@@@