commit 1447120f78bd653ed7d3501f4c1588a1aec15d99
author Carlos Galo <carlosgalo@google.com> Wed Dec 07 23:39:05 2022 +0000
committer Carlos Galo <carlosgalo@google.com> Thu Jan 05 16:29:59 2023 +0000
tree fd8cae77204f00803425b3af8650035465c8283a
parent 9d397d87ece0f354e6f7f8cb3f46a699a4b14246

Set memlock rlimit to 64KB

Defaulting Android to limit memlock to 64KB. This will help preventing
pages from being swapped until the app is killed it's memory will stay
resident. CTS test is enforced only in U+ devies.

Bug: 201797650
Test: Added new test to verify we are memlock at or under 64KB
Change-Id: I5a9e9da12f6df5a056ee47d0593c13e9c779e054

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index 323d9cb..49841ed 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -47,6 +47,9 @@
     # Allow up to 32K FDs per process
     setrlimit nofile 32768 32768
 
+    # set RLIMIT_MEMLOCK to 64KB
+    setrlimit memlock 65536 65536
+
     # Set up linker config subdirectories based on mount namespaces
     mkdir /linkerconfig/bootstrap 0755
     mkdir /linkerconfig/default 0755