truss -pdf <pid> will return a listing of every system call the process makes
at the AIX kernel level, as well as any processes forked by the process (the
'f' option). It's hard to read without a reference like W. Richard Stevens'
"Advanced Programming in the Unix Environment", but if you see it bomb out
right after it fails to open a file, for instance, that's a good clue.
> Date: Tue, 23 Mar 2010 16:34:35 -0600
> From: ka...@ourldsfamily.com
> To: u2-users@listserver.u2ug.org
> Subject: Re: [U2] Not Consistent Failure
>
> I've not uses the truss command. Pointers?
>
> They drop to the Unix directory specified in the passwd file.
>
> Karl
>
>
> On Tue, March 23, 2010 3:53 pm, Dan Fitzgerald wrote:
> >
> > One thing you could do is to make that sleep like 30 seconds, find that
> > pid, then use the AIX truss command against it while it's sleeping, and
> > see what bombs.
> >
> >
> >
> > When they drop to AIX, are they in the directory specified in /etc/passwd,
> > or somewhere else?
> >
> >
> >
> >
> >
> >> Date: Tue, 23 Mar 2010 15:26:16 -0600
> >> From: ka...@ourldsfamily.com
> >> To: u2-users@listserver.u2ug.org
> >> Subject: [U2] Not Consistent Failure
> >>
> >> When ever I see someone post something that can't be replicated because
> >> it's inconsistent, I wonder what the answer is going to be.
> >>
> >> So, here goes:
> >>
> >> I have a client that has started experiencing a login anomaly. First,
> >> the
> >> use telnet, and second, they don't have passwords at the Unix level.
> >>
> >> They are on AIX 5.2.0.0 with Universe 10.2.12
> >>
> >> The things I've seen are:
> >>
> >> - the session doesn't make it into UV for their password prompt but
> >> drops
> >> straight to Unix.
> >>
> >> - I've checked permissions at various locations and at various levels.
> >>
> >> - I've commented out various parts of both /etc/profile and
> >> /u1/ACCT/.profile with no consistent noticeable change.
> >>
> >> - I've checked UV.LOGIN and ACCT > LOGIN as well and nothing has changed
> >> in either place, and they are performing minimal tasks.
> >>
> >> - I've added a sleep just before exec /u1/uv/bin/uv plus changed uv to
> >> uvsh to see if that mattered. It didn't change the failures.
> >>
> >> - Failures are either on the 2nd login, 4th login, 3rd and 4th, 6th and
> >> 7th, 2nd and 3rd and 5th or whenever the pattern can't be matched...
> >>
> >> In other words, there's no rhyme or reason that can be applied to this
> >> failure.
> >>
> >> This is a real head-scratcher for me and I'm hoping someone has seen
> >> this
> >> or has something to offer.
> >>
> >> TIA
> >>
> >> ---
> >> Karl Pearson
> >> ka...@ourldsfamily.com
> >> Owner/Administrator of the sites at
> >> http://ourldsfamily.com
> >> ---
> >> "To mess up your Linux PC, you have to really work at it;
> >> to mess up a microsoft PC you just have to work on it."
> >> ---
> >> Democracy is two wolves and a lamb voting on what to have
> >> for lunch. Liberty is a well-armed lamb contesting the vote.
> >> --Benjamin Franklin
> >> ---
> >> Children seldom misquote you. In fact, they usually
> >> repeat word for word what you shouldn't have said.
> >> ---
> >>
> >> _______________________________________________
> >> U2-Users mailing list
> >> U2-Users@listserver.u2ug.org
> >> http://listserver.u2ug.org/mailman/listinfo/u2-users
> >
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> >
>
>
> ---
> Karl Pearson
> ka...@ourldsfamily.com
> Owner/Administrator of the sites at
> http://ourldsfamily.com
> ---
> "To mess up your Linux PC, you have to really work at it;
> to mess up a microsoft PC you just have to work on it."
> ---
> Democracy is two wolves and a lamb voting on what to have
> for lunch. Liberty is a well-armed lamb contesting the vote.
> --Benjamin Franklin
> ---
> Children seldom misquote you. In fact, they usually
> repeat word for word what you shouldn't have said.
> ---
>
> _______________________________________________
> U2-Users mailing list
> U2-Users@listserver.u2ug.org
> http://listserver.u2ug.org/mailman/listinfo/u2-users
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