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Date: Thu, 31 Jul 2014 09:14:18 +0100
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Subject: Regression: pci=realloc fails to modify bridge windows, causing devices
 to fail BAR allocation
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See https://bugzilla.kernel.org/show_bug.cgi?id=81431

Summary:

Up until v3.15.7 booting with "pci=realloc,use_crs" successfully modifies the PCI bridge windows to allow an external ExpressCard <> ViDock4 + Nvidia Quadro NVS420 with its 2 GPUs to be configured.

With v3.16rc6 and rc7 it fails to do this, leaving the NVS420 inoperable.