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SubjectRe: futex strangeness in 2.6.23-mm1/UML
On Mon, 22 Oct 2007 17:16:24 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:

> > > > > Oct 22 14:39:01 kenny automount[2299]: cache_readlock: mapent
> > > > > cache rwlock lock failed
> > > > > Oct 22 14:39:01 kenny automount[2299]: unexpected pthreads
> > > > > error: 11 at 65 in cache.c

> I guess we can debug it in the old-fashioned ways. The first of
> which is to palm the problem off on Pavel ;)
>
> I don't recall seeing a simple step-by-step way by which others can
> reproduce this?

I have my systems set up to automount my home directory over
NFS when I log in. When trying to log in to the system with
2.6.23-mm1, I get the messages from above in my syslog, and
the NFS filesystem is not automounted.

I am thinking something in autofs or the pid-namespace* patches
does not match up and uses a wrong PID number or process pointer
when trying to lock things.

Which code is at fault I have no idea...

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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