Hi again,

--On Sonntag, Dezember 26, 2004 10:14:10 +0100 Peter Bieringer 
[off-list ref] wrote:

Kernel tells me each some seconds:

Dec 26 09:59:10 * kernel: unregister_netdevice: waiting for sit_sixxs to
become free. Usage count = 1
Dec 26 09:59:50 * last message repeated 4 times
Dec 26 10:01:00 * last message repeated 7 times
Dec 26 10:02:10 * last message repeated 7 times
Dec 26 10:03:20 * last message repeated 7 times

During further process killing by hand suddenly the problem was solved.

My last commands:
  422  kill -9 5506
  437  kill -9 5506
  587  kill 23837
  589  kill -9 15765 14675 14429 14430 14483
  590  kill -9 15765 14675 14429 14430 14483
  592  kill -9 12243
  593  kill -9 12243
  595  kill 11808 3880 23933 11739
  596  service xfs stop
  597  service privoxy stop
  598  kill -9 2673
  603  kill -9 5506
  604  kill -9 2902

Because I often try to kill the hanging "ip tunnel del" command, I believe, 
one of the other network processes block something:

 2673 ?        Ss     0:01 rpc.statd

 2902 ?        Ssl    0:00 /usr/sbin/named -u named

 5506 ?        R     43:49 /sbin/ip tunnel del sit_sixxs

If happen next, I will check netstat to find more indicators which causes 
the problem.

Anyway, such deadlock is not nice and doesn't appear in earlier kernel.

	Peter
-- 
Dr. Peter Bieringer                        http://www.bieringer.de/pb/
GPG/PGP Key 0x958F422D                  mailto: pb at bieringer dot de
Deep Space 6 Co-Founder and Core Member     http://www.deepspace6.net/