Re: 2.6.13-rc6-mm1

[David Woodhouse <dwmw2@infradead.org>]

On Fri, 2005-08-19 at 18:36 -0700, Andrew Morton wrote:
> Reuben Farrelly <reuben-lkml@reub.net> wrote:
> >
> > ...
> > >> 4. PAM is complaining about "PAM audit_open() failed: Protocol not suppor
> > >> ted" and I can't log in as any user including root.  I would have picked this 
> > >> was a userspace problem, but it doesn't break with -rc5-mm1, yet reproduceably 
> > >> breaks with -rc6-mm1.  Weird.
> > > 
> > > hm.  How come you're able to use the machine then?
> > 
> > Machine was booting up ok, and things were being written to syslog.  Rebooted 
> > into -rc5-mm1 to investigate, and of course could boot into rc6-mm1 in single 
> > user mode, test and bring services up one by one from there.  Having two boxes 
> > helped too.
> > 
> > > Is it possible to get an strace of this failure somehow?
> > 
> > Not sure if this is needed anymore, as I found that the problem goes away when 
> > I compile in kernel auditing.  This not required for -rc5-mm1.  Is that change 
> > intended?
> > 
> 
> Sounds wrong to me, especially if 2.6.13-rc6 doesn't do that.

Hm. It sounds like you'd configured PAM to require the pam_loginuid
module even though you didn't have auditing enabled in your kernel. That
seems strange and wrong to me, and _is_ a userspace problem.

I'd also agree that it shouldn't have changed with the new kernel though
-- and I can't think of anything I changed recently which would have
that effect. An strace would still be useful.

Can you double-check that you didn't have auditing enabled in your
older, working kernel?

-- 
dwmw2