[Samba] Can Constant Failed Connection Attempts Crash a Server?

[Jeremy Allison]

On Mon, Dec 13, 2010 at 06:10:11PM -0500, Andy Liebman wrote:
> 
> We have not been able to reproduce this problem in house, but we
> continue to have several servers in the field that are freezing up
> whenever we get these hundreds of thousands of unsuccessful
> connection attempts.  Sometimes it can take weeks to crash.
> Sometimes it's days.  We tried getting traces but servers keep
> getting rebooted without getting  data.

Freezing up means a kernel bug not a Samba problem. Can you ping the
servers when they have frozen up ?

> Something is going on here.  What more can we do to investigate it?

You need to get real data. Get servers that experience
the problem regularly to send log data about memory/disk/vm
usage off-machine via the network, that way it doesn't
matter if they become unresponsive - you have the last
data they sent which should lead you in the right direction.

Jeremy.