tree 05b33d6d9dacc0a91d822b5924aed27e8a112ec7
parent fa9c8ec37c66574654e448513e1bb59af7cb9365
author Hiroshi Yamauchi <yamauchi@google.com> 1407432437 -0700
committer Hiroshi Yamauchi <yamauchi@google.com> 1407457129 -0700

Fix a SIGSEGV at background-to-foreground collector transition.

The mem map that's used to create the backup main rosalloc space is
set to PROT_NONE by the compaction and the rosalloc space creation
attempts to write the debug magic number in the first page.

This is a debug build only issue.

Cherry pick commit c1276c838d1d0896048b8c14458432b94274e869.

Bug: 16854263
Change-Id: Ide2545d92bcafd3a095ac7f0c89c5b43d6dd78de