CVS commit: src/sys/arch/aarch64/aarch64

["Ryo Shimizu" <ryo%netbsd.org@localhost>]

Module Name:    src
Committed By:   ryo
Date:           Sat Apr  6 18:30:20 UTC 2019

Modified Files:
        src/sys/arch/aarch64/aarch64: pmap.c

Log Message:
Fix race conditions about pmap_page_protect() and pmap_enter().

while handling same PTE by these functions in same time, there
is a critical path that the number of valid PTEs and wire_count
are inconsistent, and it caused KASSERT.
Need to hold a pv_lock while modifying them.


To generate a diff of this commit:
cvs rdiff -u -r1.38 -r1.39 src/sys/arch/aarch64/aarch64/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.