From 94642c2ec0cb95e1db19622b27ac0b6577bcf75d Mon Sep 17 00:00:00 2001
From: wanyaoqi <wanyaoqi@yunionyun.com>
Date: Thu, 17 Oct 2019 10:46:01 +0800
Subject: [PATCH] fix reserved memory is zero

---
 pkg/hostman/hostinfo/hostinfo.go       | 3 +++
 pkg/hostman/hostinfo/hostinfohelper.go | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/pkg/hostman/hostinfo/hostinfo.go b/pkg/hostman/hostinfo/hostinfo.go
index 5bb4f41a1a..c6e5507bbc 100644
--- a/pkg/hostman/hostinfo/hostinfo.go
+++ b/pkg/hostman/hostinfo/hostinfo.go
@@ -831,6 +831,9 @@ func (h *SHostInfo) getReservedMem() int {
 	if reserved > options.HostOptions.MaxReservedMemory {
 		return options.HostOptions.MaxReservedMemory
 	}
+	if reserved == 0 {
+		panic("memory reserve value is 0, need help")
+	}
 	return reserved
 }
 
diff --git a/pkg/hostman/hostinfo/hostinfohelper.go b/pkg/hostman/hostinfo/hostinfohelper.go
index e72da00993..c5bbd36eff 100644
--- a/pkg/hostman/hostinfo/hostinfohelper.go
+++ b/pkg/hostman/hostinfo/hostinfohelper.go
@@ -152,6 +152,10 @@ func DetectMemoryInfo() (*SMemory, error) {
 		return nil, err
 	}
 	smem.MemInfo = sysutils.ParseDMIMemInfo(strings.Split(string(ret), "\n"))
+	if smem.MemInfo.Total == 0 {
+		// in case dmidecode is not work, use gopsutil
+		smem.MemInfo.Total = smem.Total
+	}
 	return smem, nil
 }