On Nov  3, 2011, Mandell Degerness <[email protected]> wrote:

> We are currently running all services on each of the three nodes.
> (mon, mds, and several osd processes).

Do you also happen to have a ceph.ko mount on the node that showed the
problem?  If so, you may be running into a deadlock in which ceph.ko is
waiting for a response from the mon to complete a sync and release some
pages, but mon is waiting for a sync to complete before it will respond.

-- 
Alexandre Oliva, freedom fighter    http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/   FSF Latin America board member
Free Software Evangelist      Red Hat Brazil Compiler Engineer
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