Comment 50 for bug 869502

Hi Michael,

Would you be able to pinpoint an exact reproducer? That would really help for moving forward and testing possible fixes.

Just to summarize, you've mentioned the following:

3.0.0-11.18 => no panic
3.0.0-12.19 and 3.0.0-12.20 => both panic
upstream v3.1-rc9 => no panic

Could you test two more upstream kernels for me? There is a patch (rt2x00: Serialize TX operations on a queue.) that went into upstream stable v3.0.7 which we also pulled in to the Ubuntu 3.0.0-12.19 kernel. If this patch is the culprit, I'd expect you to experience the panic running v3.0.7 but not v3.0.6. Could you test and confirm if this happens?

v3.0.6 - http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.0.6-oneiric/

v3.0.7 - http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.0.7-oneiric/

For anyone else experiencing panics, please hold off on commenting until I hear back from Michael as he is the original bug reporter and I'm not convinced (based on the attached info) the panics anyone else here is seeing are the same as what Michael is seeing (ie it's probably best for you to open a separate bug report, we can always mark it as a duplicate later on if necessary). I want to avoid dog piling this bug with irrelevant information. Thanks.