Re: Special handling of sysfs device resource files?

[Ian Romanick]

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Paul Mackerras wrote:
> 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)?

I've only tried on x86-64 (an Athlon64 3000+ to be exact) so far.
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