From 261013ad1a4ae2f84a5021d4698b697ac903eafb Mon Sep 17 00:00:00 2001
From: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Date: Fri, 27 Oct 2017 19:56:36 +0200
Subject: [PATCH] scripts/setup: abort on hugepage allocation failure

Change-Id: I01ba59c8bd6fb54e15e3896c7e077ec91fdb88f7
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/384087
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
---
 scripts/setup.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/setup.sh b/scripts/setup.sh
index 55b55bbf1..bd644ecd0 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -146,6 +146,13 @@ function configure_linux {
 	fi
 
 	echo "$NRHUGE" > "$hugepages_target"
+	allocated_hugepages=`cat $hugepages_target`
+	if [ "$allocated_hugepages" -lt "$NRHUGE" ]; then
+		echo ""
+		echo "## ERROR: requested $NRHUGE hugepages but only $allocated_hugepages could be allocated."
+		echo "## Memory might be heavily fragmented. Please try flushing the system cache, or reboot the machine."
+		exit 1
+	fi
 
 	if [ "$driver_name" = "vfio-pci" ]; then
 		if [ "$username" != "" ]; then