On 4-Jan-14, at 12:45 PM, Mikulas Patocka wrote:

* flush_dcache_page asks for the list of userspace mappings, however that
 page->mapping field is reused by the slab subsystem for a different
 purpose. This causes the crash.

I'd noticed the other day that the parisc implementation of flush_dcache_page() should return if "!mapping || mapping != page->mapping" is true. This would
have avoided crash.

Dave
--
John David Anglin       dave.ang...@bell.net



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