On 04/14/2011 02:17 PM, Mike Christie wrote:
This message means we have sent 2592 bytes out of 4096. The 0 means that
we are trying to send the rest of the data, but we are not able to sent
anything (0 is the number of bytes we were able to send when we did
sendpage/sendmsg). So send the full logs so I can see what else is in
there.
Ok in your current logs we have
Apr 13 11:07:23 oim61024008 kernel: connection3:0: ping timeout of 5
secs expired, recv timeout 5, last rx 559699, last ping 560949, now 562199
Then looking over session3/connection3:0 we have
connection3:0: iscsi_tcp_segment_done copied 2632 0 size 4096 xmit
from Apr 13 11:07:23 to the middle of Apr 13 11:07:13.
So for 10 seconds we are trying to do sendpage but it keeps returning 0.
For some reason the network layer is just not sending new IO. The
network layer is probably retransmitting and so the network layer runs
out of writespace.
Did you by any chance also take a network trace (tcpdump or
ethereal/wireshark)? Could you send it?
Can you run a rhel kernel? I can add some debugging in to the kernel.
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