Did PCI/IRQ allocation change significantly after 4.2 kernel?

On Tue, Mar 29, 2016 at 07:42:44AM -0700, Greg KH wrote:

On Tue, Mar 29, 2016 at 02:15:23PM +0000, Rob Groner wrote:

quoted

I?m investigating why our drivers no longer work correctly after the 4.2
kernel.  I have verified that in the 4.4 kernel, interrupts no longer work for
us as they did before.  Here are the symptoms:

What drivers are these?  Do you have a pointer to the source for them?

And what platform are you having these problems on, x86, arm64,
something else?

Also, can you use 'git bisect' to find the problem commit?  That might
be the easiest way forward.

thanks,

greg k-h