As Brian and Enrico have pointed out, this is a known issue upstream. However, it seems the upstream bugzilla report has not had a comment since almost 2 yrs ago. It would be helpful if someone still experiencing this issue would post that this is still an issue to the upstream bug report. It would also be helpful to probably add the output of 'modinfo ipw2100' so they can see the version of the driver you are running etc. I've assigned this to the ubuntu-kernel-team so that they are aware of the issue upstream and needs to be resolved there. Thanks.
As Brian and Enrico have pointed out, this is a known issue upstream. However, it seems the upstream bugzilla report has not had a comment since almost 2 yrs ago. It would be helpful if someone still experiencing this issue would post that this is still an issue to the upstream bug report. It would also be helpful to probably add the output of 'modinfo ipw2100' so they can see the version of the driver you are running etc. I've assigned this to the ubuntu-kernel-team so that they are aware of the issue upstream and needs to be resolved there. Thanks.