[Beowulf] tcp error: Need ideas!
landman at scalableinformatics.com
Sun Jan 25 07:32:05 PST 2009
Gerry Creager wrote:
> Joe Landman wrote:
>> I wonder if the switch could be implicated. We have seen some (cheap)
>> GbE switches not support (in practice) jumbo frames (irrespective of
> Been there, done that. HP claims to be able to handle packets up to
> 9000 bytes of payload. (9122 total, IIRC)
Ok, modern Procurves are good. Its unlikely to be this.
> But here's the one I love:
> -bash-3.2# ethtool -K tso off
> no offload settings changed
Hmmm... driver sounds borked if it advertises being able to turn tso
on/off and then doesn't let you.
> I apparently can't control things with ethtool...
... smells like the driver.
>>>> I'll go snag the new driver and compile it. After all: What can it
Any luck with this? I pulled down the tarball and built it here on a
2.6.9 based machine without incident. Not RPM format (no .spec file),
but fairly painless to build.
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
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