On Mon, Jan 30, 2017 at 09:41:36AM -0600, Bjorn Helgaas wrote: > On Mon, Dec 12, 2016 at 11:30:20AM -0700, Jason Gunthorpe wrote: > > The PCI core will write to the bridge window config multiple times > > while they are enabled. This can lead to mbus failures like: > > > > mvebu_mbus: cannot add window '4:e8', conflicts with another window > > mvebu-pcie mbus:pex@e0000000: Could not create MBus window at [mem 0xe0000000-0xe00fffff]: -22 > > > > For me this is happening during a hotplug cycle. The PCI core is > > not changing the values, just writing them twice while active. > > > > The patch addresses the general case of any change to an active window, > > but not atomically. The code is slightly refactored so io and mem > > can share more of the window logic. > > > > Signed-off-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx> > > Applied with Jason C's ack to pci/host-mvebu for v4.11, thanks! Thank you for keeping on top of this Bjorn! Jason -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
