Comment 12 for bug 1581777

This seems to be a problem in ESXi, it was promised to be fixed in 6.0 Update 3 which hasn't been released as of yet.

However there is now a workaround patch that will make it to 4.4 and 4.7 stable trees:

http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

queue-4.4/genirq-msi-make-sure-pci-msis-are-activated-early.patch
queue-4.7/genirq-msi-make-sure-pci-msis-are-activated-early.patch