Basically, commit 9483f40 "rt2x00pci: Use PCI MSIs whenever possible" has been reverted upstream by commit dfb6b7c109a7f98d324a759599d1b4616f02c79f and it is already queued for stable updates (i.e. it should hit Ubuntu kernels very soon).
I've built a test kernel containing this revert and uploaded it here:
This seems to be https:/ /bugzilla. kernel. org/show_ bug.cgi? id=61621
Basically, commit 9483f40 "rt2x00pci: Use PCI MSIs whenever possible" has been reverted upstream by commit dfb6b7c109a7f98 d324a759599d1b4 616f02c79f and it is already queued for stable updates (i.e. it should hit Ubuntu kernels very soon).
I've built a test kernel containing this revert and uploaded it here:
http:// people. canonical. com/~henrix/ lp1252962/ v1/
Could you please give it a try? Thanks