Comment 17 for bug 1013199

I'm not entirely sure this bug is invalid.

We recently upgraded some of our HP blades and bridge networking stopped working with the the 3.2.0-31 Ubuntu 12.04 LTS Kernel and the be2net driver. I've tested a number of kernels and distros both with and without the be2net driver and I can definitively say that the 3.2.0-31 does not work.

I have confirmed that the following Ubuntu version and kernel work on the same HP blades with the be2net driver.

Oneiric:
3.0.0-17-server #30-Ubuntu SMP
3.0.0-19-server #33-Ubuntu SMP
3.0.0-22-server #36-Ubuntu SMP
3.0.0-23-server #39-Ubuntu SMP
3.0.0-25-server #41-Ubuntu SMP

Precise:
3.2.0-30-generic #48-Ubuntu SMP

Additionally I have tested the following kernels with the bnx2 driver and can confirm that they work without issue.

Oneiric:
3.0.0-17-server #30-Ubuntu SMP
3.0.0-19-server #33-Ubuntu SMP

Precise:
3.2.0-25-generic #40-Ubuntu SMP
3.2.0-29-generic #46-Ubuntu SMP
3.2.0-30-generic #48-Ubuntu SMP
3.2.0-31-generic #50-Ubuntu SMP

The only combination that does not work is the be2net driver and the 3.2.0-31 kernel. I have tried the proposed "solution" of configuring the bridges via /etc/network/interfaces with no luck.

Further testing with tcpdump reveals that the underlying physical interface is receiving the packets but they do not appear to be making it to the bridge.

I am happy to provide any elements of the configuration as well as tcpdumps or anything else that might be of assistance.