Re: oninit dies without error on RedHat 9

On Thu, 2003-06-05 at 23:17, Marc Prud'hommeaux wrote: > Bruce- > > Unfortunately, strace (which, in my understanding, is the Linux > equivalent of Solaris' "truss") doesn't like setuid binaries (such as > oninit). I was able to get around this by un-setuiding oninit and then > running oninit within strace turned on. Unfortunately, the last thing > I see is that oninit forks, and then it just silently dies. > > Does anyone have any hints on how to successfully run oninit with > strace? According to the strace man page if you install strace itself setuid then it will work on setuid binaries, you may not want to do this though. It should also work if you run strace as root. You will also want to use the -f flag (follow forks) to see what the ADM VP gets up to. This is what I see on a glibc 2.2.5 (debian woody) box. ... ... ... [pid 17349] write(1, "Bringing up ADM VP...", 21Bringing up ADM VP...) = 21 [pid 17349] rt_sigprocmask(SIG_BLOCK, [ALRM], NULL, 8) = 0 [pid 17349] alarm(0) = 1 [pid 17349] rt_sigaction(SIGALRM, {SIG_IGN}, {0x4001ff88, [ILL FPE USR1 STKFLT CHLD TSTP TTIN TTOU URG XFSZ IO], SA_SIGINFO|0x4000000}, 8) = 0 [pid 17349] rt_sigprocmask(SIG_UNBLOCK, [ALRM], NULL, 8) = 0 [pid 17349] rt_sigaction(SIGALRM, {SIG_DFL}, {SIG_IGN}, 8) = 0 [pid 17349] semctl(1376263, 1, SETVAL, 0xbffd71bc) = 0 [pid 17349] --- SIGSEGV (Segmentation fault) --- <... wait4 resumed> NULL, 0, NULL) = 17349 --- SIGCHLD (Child exited) --- _exit(1) = ? I have tried several different versions of glibc (2.2.5, 2.3.1, 2.3.2) and always get the same thing so I do not believe it is related to the NPTL changes. I have even tried downloading and building the latest versions of glibc, both 2.2 and 2.3, to no avail. The only way I _have_ managed to get it to work is by downloading a version of glibc from suse that was mentioned in an earlier thread and installing IDS in a chrooted environment using this version. Not the most streaightforward informix install I've ever done. The version of glibc that works can be found here. ftp://ftp.suse.com/pub/suse/i386/8.1/suse/i686/glibc-2.2.5-163.i686.rpm I have no idea what suse have put in here to make it work, it appears to be a an unrelated security release. Will > > briceavila@hotmail.com (Brice Avila) wrote in message news:<c46e3ec5.0306050652.3433ac67@posting.google.com>... > > Your configuration looks OK. > > > > Try running the Redhad version of Solaris' "truss" command on the > > oninit process to see why it is failing at "Bringing up ADM VP...". > > > > One thought: there might be some kernel parameters that are necessary > > to bing up the instance listed in the release notes > > ($INFORMIXDIR/release/en_us/0333/IDS2000_9.4?). > > > > Good luck. > > > > Brice Avila > > Minneapolis, Minnesota -- Will Slater Will.Slater@orbisuk.com Orbis Tel: +44 (0)20 8742 1600 www.orbisuk.com Fax: +44 (0)20 8742 2649