That BAR is indeed "locked". Now that we try to reallocate it, you get
this in the log:
pci 0000:00:00.0: BAR 3: error updating (0x40000004 != 0xe0000004)
pci 0000:00:00.0: BAR 3: error updating (high 0x000001 != 0x000000)
ie now the code _tried_ to update the BAR to point to 0x1_4000_0000
instead, but the hardware refused, and it is still at 0x0_e000_0000.
So Yinghai's patch "worked", but it worked by doing nothing.
See my earlier guess about locked read-only resources a few emails back.
IOW, I'm not at all surprised. I really do suspect that that BAR is some
very special "this is the HT->PCIE region" BAR.