Comment 2 for bug 1508593

I built a Wily test kernel with a cherry-pick of the following commit, which is now in upstream as of v4.3-rc7:

c0ff971 x86/ioapic: Disable interrupts when re-routing legacy IRQs

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1508593/wily/

Can you test this kernel and see if it resolves this bug?

Also, do you know if this commit is also needed in Vivid and Trusty? If it is, there will be several prerequisite commits required for each.