tree c7ec6c58dd4f23600af0663b4d1b7eb66ffd8eb1
parent 10d5ebd4a9e4f3a775fca3cb1bf9acc569622856
author Colin Cross <ccross@android.com> 1497397318 -0700
committer Colin Cross <ccross@android.com> 1497549457 -0700

Add a helpful error message if GetUnreachableMemory fails

The primary reason for GetUnreachableMemory failing is selinux
blocking system apps from ptracing themselves.  Add a helpful
error message suggesting setenforce 0.

Bug: 27945735
Test: dumpsys meminfo --unreachable com.android.systemui
Change-Id: Ibfa9507860be36dffd514f82027f7a2f8a72ac48