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-rw-r--r--Documentation/admin-guide/sysctl/vm.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 97e12359775c..b9b0c218bfb4 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -1034,6 +1034,8 @@ min(3% of current process size, user_reserve_kbytes) of free memory.
This is intended to prevent a user from starting a single memory hogging
process, such that they cannot recover (kill the hog).
+This setting has no effect when overcommit_memory is set to 0 or 1.
+
user_reserve_kbytes defaults to min(3% of the current process size, 128MB).
If this is reduced to zero, then the user will be allowed to allocate