[Samba] nmbd eats cpu for breakfast after upgrade from 3.5 to 3.6

[Jeremy Allison]

On Thu, Apr 19, 2012 at 09:03:35AM +0300, Ander Punnar wrote:
> On 17 April 2012 20:19, Jeremy Allison <jra at samba.org> wrote:
> > What does strace -p <nmb-pid> say ?
> 
> Today, strace showed lots of following:
> recvfrom(13, 0x7fff7c027a00, 576, 0, 0x7fff7c027c40, 0x7fff7c0279dc) =
> -1 EAGAIN (Resource temporarily unavailable)
> 
> But in log.nmbd, there wasn't anything "uncommon".

You get this when the socket is set non-blocking and a recvfrom()
returns -1, EAGAIN.