Messages in this thread | | | Date | Sun, 26 Mar 2006 09:51:00 +0200 | From | Martin Petrak <> | Subject | unregister_netdevice: waiting for ppp0 to become free |
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Hi all,
I am using kernel 2.6.14.6-grsec (x86_64 on AMD Sempron 64) with QoS (HTB)
Occasionally, when pppd drops a connection I see this in syslog :
Mar 25 13:40:17 myserver pppd[1300]: No response to 3 echo-requests Mar 25 13:40:17 myserver pppd[1300]: Serial link appears to be disconnected. Mar 25 13:40:17 myserver pppd[1300]: Connect time 1250.6 minutes. Mar 25 13:40:17 myserver pppd[1300]: Sent 971616622 bytes, received 1884313787 bytes. Mar 25 13:40:20 myserver pppd[1300]: Connection terminated. Mar 25 13:40:30 myserver kernel: unregister_netdevice: waiting for ppp0 to become free. Usage count = 358
Then only force reboot of the machine solves the problem.
I found very similar problem with same symptoms : http://groups.google.com/group/linux.debian.kernel/browse_thread/thread/dcb36b5fe827fad6/05445a30be147608
Do you have any ideas how I can debug why dev->refcnt did not reach zero?
regards,
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