K 10
svn:author
V 4
mmel
K 8
svn:date
V 27
2020-09-27T09:27:39.283476Z
K 7
svn:log
V 228
Reapply r366193 with proper commit log.

Don't map same physical memory multiple times with different cache attributes.
This is explicitly stated as architectural undefined behavior, leading to
coherency issues sooner or later.

END