On 12/29/2009 2:15 PM, Jarek Poplawski wrote:

Michael Breuer wrote, On 12/25/2009 05:28 PM:

   

quoted

   More data points - I'm able to reliably recreate this now.
While I thought it was coincidence, each and every time I hit this issue
there is a DHCP renew event immediately before the first error.
     

Maybe it's totally unconnected and some different NetworkManager, but FYI,
there was reported a strange interaction of KNetworkManager vs 2.6.32:
http://bugzilla.kernel.org/show_bug.cgi?id=14794

Jarek P.
   

Interesting, but I don't think it's related. The interface in question 
is not under the control of NetworkManager; I'm not using KDE, and the 
connection isn't dropping - just getting DHCPINFORM from the attached 
client that is generating load.

quoted

The crash occurs while under load - in my case seems that the traffic is
actually IPV6 (hadn't noticed that before).
I ran nethogs on a remote display - the reported rx rate on the IPV6 smb
connection at the time of the lockup was 33889.688 KB/sec on a 1gbit
nic. I've got two events like this - don't recall if the earlier one was
the exact same # - but it was in the ballpark.

     

...
   

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Dec 23 17:33:29 mail NetworkManager:<info>    (eth0): carrier now ON
(device state 1)
Dec 23 17:33:30 mail named[4284]: client 114.80.99.2#44695: view
External: query (cache) './NS/IN' denied
Dec 23 17:33:38 mail named[4284]: error (connection refused) resolving
'121.93.27.216.blackholes.mail-abuse.org/A/IN': 168.61.5.195#53
Dec 23 17:33:44 mail kernel: sky2 eth0: tx timeout
Dec 23 17:33:44 mail kernel: sky2 eth0: disabling interface
Dec 23 17:33:44 mail kernel: sky2 eth0: enabling interface
Dec 23 17:33:44 mail NetworkManager:<info>    (eth0): carrier now OFF
(device state 1)
Dec 23 17:33:49 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
duplex, flow control both
Dec 23 17:33:49 mail NetworkManager:<info>    (eth0): carrier now ON
(device state 1)
Dec 23 17:33:52 mail dhcpd: DHCPINFORM from 10.0.0.11 via eth0
Dec 23 17:33:52 mail dhcpd: DHCPACK to 10.0.0.11 (00:1a:92:8d:30:81) via
eth0
Dec 23 17:34:01 mail smbd[24783]: [2009/12/23 17:34:01,  0]
lib/util_sock.c:539(read_fd_with_timeout)
Dec 23 17:34:01 mail smbd[24783]: [2009/12/23 17:34:01,  0]
lib/util_sock.c:1491(get_peer_addr_internal)
Dec 23 17:34:01 mail smbd[24783]:   getpeername failed. Error was
Transport endpoint is not connected
Dec 23 17:34:01 mail smbd[24783]:   read_fd_with_timeout: client 0.0.0.0
read error = Connection reset by peer.
Dec 23 17:34:04 mail abrt: Kerneloops: Reported 1 kernel oopses to Abrt
Dec 23 17:34:04 mail abrtd: Directory 'kerneloops-1261607644-1' creation
detected
Dec 23 17:34:04 mail abrtd: Getting local universal unique identification
Dec 23 17:34:04 mail abrtd: New crash, saving
Dec 23 17:34:04 mail abrtd: Activation of plugin 'RunApp' was not
successful: Plugin 'RunApp' is not registered
Dec 23 17:34:04 mail kernel: sky2 eth0: tx timeout
Dec 23 17:34:04 mail kernel: sky2 eth0: disabling interface
Dec 23 17:34:04 mail kernel: sky2 eth0: enabling interface
Dec 23 17:34:04 mail NetworkManager:<info>    (eth0): carrier now OFF
(device state 1)
Dec 23 17:34:09 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
duplex, flow control both
Dec 23 17:34:09 mail NetworkManager:<info>    (eth0): carrier now ON
(device state 1)
Dec 23 17:34:11 mail logger: ping of potter failed
Dec 23 17:34:19 mail kernel: sky2 eth0: tx timeout
Dec 23 17:34:19 mail kernel: sky2 eth0: disabling interface
Dec 23 17:34:19 mail kernel: sky2 eth0: enabling interface
Dec 23 17:34:19 mail NetworkManager:<info>    (eth0): carrier now OFF
(device state 1)
Dec 23 17:34:22 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
duplex, flow control both
Dec 23 17:34:22 mail NetworkManager:<info>    (eth0): carrier now ON
(device state 1)