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The commit d96885e277 ("parisc: use pgtable-nopXd instead of
4level-fixup") converted PA-RISC to use folded page tables, but it missed
the conversion of pgd_populate() to pud_populate() in maps_pages()
function. This caused the upper page table directory to remain empty and
the system would crash as a result.
Using pud_populate() that actually populates the page table instead of
dummy pgd_populate() fixes the issue.
Fixes: d96885e277 ("parisc: use pgtable-nopXd instead of 4level-fixup")
Reported-by: Meelis Roos <mroos@linux.ee>
Reported-by: Jeroen Roovers <jer@gentoo.org>
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Jeroen Roovers <jer@gentoo.org>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
8b7f938e0a