Bug#572201: linux-image-2.6.32-trunk-amd64: forcedeth driver hangs under heavy load
Ben Hutchings wrote:
What protocol(s) are you using when this occurs?
I was running the Hadoop application (http://hadoop.apache.org/) which
uses TCP as far as I know.
I just tried to reproduce the problem using iperf but have sent GBs
between two machines running 2.6.32 without seeing any problems. Will
try running Hadoop across all my systems, with only 2 running 2.6.32 and
see if I can replicate the problem. Otherwise will roll them all back to
2.6.32 and work from there.
Happy to run further diagnostics to tie this down if you let me know
what to run.
We'll want to see the kernel log (output from dmesg) after this happens,
even if you can't spot anything in it.
The device statistics (output from ethtool -S eth0) might also be
informative.
Ok, will post both of those when I manage to reproduce the problem again.
-stephen
--
Stephen Mulcahy, DI2, Digital Enterprise Research Institute,
NUI Galway, IDA Business Park, Lower Dangan, Galway, Ireland
http://di2.deri.ie http://webstar.deri.ie http://sindice.com
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