This is perhaps a long shot, but anyway...
I assume the reason you tried turning off DNS look-ups is that remote
host cannot resolve the local hostname, or it can, but takes a
relatively long time to do so. You might check and see if syslog has DNS
look-ups enabled. It's been a while, but I think we had a similar
problem and don't ask me why, but turning off DNS look-ups for syslog
solved the problem. I can't believe that sshd would block waiting for
syslog, but I suppose it could be true...
On Sat, 2006-05-20 at 17:26 +0400, Andrew Pantyukhin wrote:
> I have a problem. When I run sshd -ddd I get this:
> (I get the same delay without -ddd, of course)
> debug3: mm_pty_allocate: waiting for MONITOR_ANS_PTY
> debug3: mm_request_receive_expect entering: type 26
> debug3: mm_request_receive entering
> ===> <60-90 seconds of delay>
> debug3: mm_request_send entering: type 26
> I started getting the delay a few days ago, on a number of
> hosts running 6.0-RELEASE/i386. I tried setting UseDNS
> off - to no effect. The sshd process is in state sbwait during
> the delay. Any ideas?
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