Date: Sun, 23 Mar 1997 09:50:38 +0100 From: j@uriah.heep.sax.de (J Wunsch) To: mark@seeware.DIALix.oz.au (Mark Hannon) Cc: freebsd-current@freebsd.org Subject: Re: 2.2-RELEASE, dtmail stopped working Message-ID: <19970323095038.PT14623@uriah.heep.sax.de> In-Reply-To: <199703230114.MAA00606@putte.seeware.DIALix.oz.au>; from Mark Hannon on Mar 23, 1997 12:14:35 %2B1100 References: <199703230114.MAA00606@putte.seeware.DIALix.oz.au>
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As Mark Hannon wrote:
> I can't however seem to get a trace going now. Executing
> ktrace -i -p 264
> From an su'd shell (where 264 is the pid of my normal tcsh) doesn't
> seem to give much joy.
You probably need to disable this code in sys/kern/kern_exec.c
temporarily:
/*
* Turn off syscall tracing for set-id programs, except for
* root.
*/
if (p->p_tracep && suser(p->p_ucred, &p->p_acflag)) {
p->p_traceflag = 0;
vrele(p->p_tracep);
p->p_tracep = NULL;
}
--
cheers, J"org
joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
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