Hi Jason, On Wed, Apr 09, 2014 at 10:20:40AM -0600, Jason Gunthorpe wrote: > On Wed, Apr 09, 2014 at 08:11:29AM +0200, Willy Tarreau wrote: > > > OK I just got it by adding two printk() in pci-mvebu.c. Both functions > > mvebu_pcie_handle_iobase_change() and mvebu_pcie_handle_membase_change() > > do pass a size which is in fact a mask (size - 1) and not the real size. > > So the mbus is fed with an incorrect size which is off by one : > > Yes, that is right. I tested my patch here and didn't see any problem, > but I realize now that the mbus code is bailing early due to this: > > kernel: mvebu_mbus: cannot add window '4:e8', conflicts with another window > > Which I've never got around to fixing.. (whole other story there) > > Your patch looks fine, and it obviously needs to be sequenced before > mine. (Thomas/Jason C: how do you want to do this?) > > Reviewed-By: Jason Gunthorpe OK, thank you. I've updated the attached patch with your better description. Cheers, Willy