From 863b16e7043ee39674e8f0bbea4c7d5accfaf9a5 Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flow@cs.fau.de>
Date: Mon, 12 Aug 2019 14:05:46 +0200
Subject: Improve scalloc error message

---
 src/allocators/scalloc.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/allocators/scalloc.py b/src/allocators/scalloc.py
index f2f15b4..6d1b0dd 100644
--- a/src/allocators/scalloc.py
+++ b/src/allocators/scalloc.py
@@ -30,8 +30,11 @@ class Scalloc (Allocator):
     def build(self):
         with open("/proc/sys/vm/overcommit_memory", "r") as f:
             if f.read()[0] != "1":
-                print_error("Scalloc needs permission to overcommit_memory")
-                raise AssertionError("vm.overcommit_memory not set")
+                raise AssertionError("""\
+vm.overcommit_memory not set
+Scalloc needs permission to overcommit_memory.
+sysctl vm.overcommit_memory=1
+""")
         return super().build()
 
 
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