Ian Romanick writes:
> This seems to mostly work, but I am having one problem. I map the
> region by opening the file with O_RDWR, then mmap with
> (PROT_READ|PROT_WRITE) and MAP_SHARED. In all cases, the open and mmap
> succeed. However, for I/O BARs, the resulting pointer from mmap is
> invalid. Any access to it results in a segfault and GDB says it's "out
> of range".
On which architecture(s)?
Paul.
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