Bull GNU/Linux NFSv4 project

NFSv3 interoperability issue

Test

Connectathon 2004 test does not end over a NFSv3/UDP test. Test is blocked in the sub test number 5.

Analysis

Only the 17 first fragments of a UDP packet are sent by the client to the server
Bug appear using linux 2.6.10-rc2 as client, and latter versions

Bug is reproducible with a simple client server UDP

Conclusion

The intel e1000 ethernet driver does not work fine on the 2.6.10 kernel and latter versions.

temporary issue

Testing with the old version of the driver works fine (Driver from linux 2.6.10-rc1)
Issue was sent to the driver author (Intel)

Software configuration

Server

Export options are : /export <world>(rw,wdelay,insecure,no_root_squash,no_subtree_check,fsid=0)

Server running Linux, Solaris 10, AIX 5.3

Client

test command : ./runtest -a -f /mnt/benchs_nfs/test_dir/
Other : Linux 2.6.10-rc2, linux-2.6.10 (final), linux 2.6.11-rc3

hardware configuration

Server (AIX)

2 processors Power PC_POWER3

375000000 frequency

Total memory 512Mo

Ethernet: IBM 4-Port 10/100 Base-TX Ethernet PCI Adapter

System : AIX 5.3

Client

2 processors : Intel(R)
Xeon(TM) CPU 2.80GHz, cache 512 KB

Total memory: 2Gb

Ethernet: 1Gb/s link intel e1000

Distribution: modified Fedora Core 2

Tests summary

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	Last update: 2005, September 23