[Bug 193400] [mips] r269577 broke operation on MIPS32

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193400

--- Comment #6 from Adrian Chadd <adrian at freebsd.org> ---
alc's asked me to test:

> Is this something that should be fixed in the vm/pmap code somewhere,
> or is this just the correct behaviour?

No.  However, if you feel like tinkering, you could replace the body of
sf_buf_unmap() with

mips_dcache_wbinv_range_index(va, PAGE_SIZE);
return (0);

and see what happens.


-a

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