diff --git a/0005-fix-cannot-reopen-when-program-crashes.patch b/0005-fix-cannot-reopen-when-program-crashes.patch
new file mode 100644
index 0000000000000000000000000000000000000000..0e4ddf541e1738d8673cd0199bb373eaec7587b3
--- /dev/null
+++ b/0005-fix-cannot-reopen-when-program-crashes.patch
@@ -0,0 +1,144 @@
+diff --git a/nfs-logtools-1.0.0/getcontent.cpp b/nfs-logtools-1.0.0/getcontent.cpp
+index 8931bbb..4263925 100644
+--- a/nfs-logtools-1.0.0/getcontent.cpp
++++ b/nfs-logtools-1.0.0/getcontent.cpp
+@@ -10,8 +10,9 @@ QString GetContent::getHomePath()
+     QStringList params;
+     QStringList getUserName;
+     QStringList curHome;
++    QString curUserByWho = "";
++    QString curUserByLast = "";
+     QString curUser = "";
+-    QString ret ="";
+     QString tmpLine ="";
+     QStringList contentList;
+     QStringList tmpLineList;
+@@ -19,44 +20,48 @@ QString GetContent::getHomePath()
+     QString curUsrPawdInfo = "";
+     
+     /* 使用who命令获取当前用户名，如果多用户登灵会产生问题*/
+-   /* execCmd->start("who", params);
++    execCmd->start("who", params);
+     execCmd->waitForFinished();
+-    curUser = execCmd->readAllStandardOutput();
+-    getUserName = curUser.split(" ");
+-    curUser = getUserName[0];*/
+-    
++    curUserByWho = execCmd->readAllStandardOutput();
++
+     /*使用last命令获取首行still logged in的用户*/
+     execCmd->start("last", params);
+     execCmd->waitForFinished();
+-    ret = execCmd->readAllStandardOutput();
++    curUserByLast = execCmd->readAllStandardOutput();
+     
+-    //将整体返回的字符串按\n为一行，存储到list中
+-    for (auto ch:ret) {
+-    	if ('\n'!= ch) {
+-		tmpLine.append(ch);
+-    	}
+-    	else {
+-    		contentList.append(tmpLine);
+-    		tmpLine.clear();
++    if (curUserByWho != NULL) {
++    	getUserName = curUserByWho.split(" ");
++    	curUser = getUserName[0];
++    }
++    else if(curUserByLast != NULL) {
++    	//将整体返回的字符串按\n为一行，存储到List中
++    	for (auto ch:curUserByLast) {
++		if ('\n' != ch) {
++			tmpLine.append(ch);
++		}
++		else {
++			contentList.append(tmpLine);
++			tmpLine.clear();
++		}
+     	}
++
++	int i = 0;
++	do {
++		    if (contentList[i].contains("root", Qt::CaseInsensitive)) {
++		    	continue;
++		    }
++		    else {
++		    	getUserName = contentList[i].split(" ");
++		    	curUser = getUserName[0];
++		    	break;
++		    }
++		   i++;
++	   }while(i < contentList.size());
+     }
+-    
+-    //取第一个非root的用户
+-    int i= 0;
+-    do {
+-    	if (contentList[i].contains("root", Qt::CaseInsensitive)) {
+-    		continue;
+-    	}
+-    	else {
+-    		getUserName = contentList[i].split(" ");
+-    		curUser = getUserName[0];
+-    		break;
+-    	}
+-    	i++;
+-    } while (i<contentList.size());
+-    
+-    
+-    
++    else {
++	return "/root";
++    }
++	
+     execCmd->start("bash", QStringList() << "-c" << "cat /etc/passwd | grep " + curUser);
+     execCmd->waitForFinished();
+     curUsrPawdInfo = execCmd->readAllStandardOutput();
+diff --git a/nfs-logtools-1.0.0/main.cpp b/nfs-logtools-1.0.0/main.cpp
+index decdbc1..ed9baf4 100644
+--- a/nfs-logtools-1.0.0/main.cpp
++++ b/nfs-logtools-1.0.0/main.cpp
+@@ -1,8 +1,25 @@
+ #include <QApplication>
+ #include <QTranslator>
+-#include <QSharedMemory>
++#include <unistd.h>
++#include <fcntl.h>
+ #include "logtools.h"
+ 
++bool checkOnly()
++{
++    const char fileName[] = "/tmp/.logtoolslockfile";
++    int fd = open (fileName, O_WRONLY | O_CREAT, 0644);
++    int flock = lockf(fd, F_TLOCK, 0);
++    if (-1 == fd) {
++    	perror("open temp/.logtoolslockfile\n");
++    	return false;
++    }
++    if (-1 == flock) {
++    	perror("lock temp/.logtoolslockfile\n");
++    	return false;
++    }
++    return true;
++}
++
+ int main(int argc, char *argv[])
+ {
+     qputenv("XDG_RUNTIME_DIR", "/tmp/runtime-root");
+@@ -12,15 +29,8 @@ int main(int argc, char *argv[])
+     }
+     
+     QApplication a(argc, argv);
+-
+-    //防止进程多开
+-    QSharedMemory shareMem("nfs-logtools");
+-    if (shareMem.isAttached()) {
+-        shareMem.detach();
+-    }
+-    if (!shareMem.create(1)) {
+-        qDebug() << shareMem.errorString();
+-        return -1;
++    if (!checkOnly()) {
++    	return 0;
+     }
+ 
+     QTranslator trans;
diff --git a/nfs-logtools.spec b/nfs-logtools.spec
index f8d67c5087f31f130ba896b03674f78803203372..7ce35d88f0a7cefaf7a80d75f65ddf75bdfcd99f 100644
--- a/nfs-logtools.spec
+++ b/nfs-logtools.spec
@@ -3,7 +3,7 @@
 
 Name:           nfs-logtools
 Version:        1.0.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        A log tools of Nfs.
 License:        GPLv2+ 
 Source0:        %{name}-%{version}.tar.gz
@@ -11,6 +11,7 @@ Patch0:	    0001-fix-display-version-error.patch
 Patch1:	    0002-adj-xsession-error-log-path.patch
 Patch2:	    0003-auto-scaling-and-fix-error.patch
 Patch3:	    0004-after-export-all-log-program-abort.patch
+Patch4:	    0005-fix-cannot-reopen-when-program-crashes.patch
 
 BuildRequires:  qt5-qttools-devel qt5-qtbase-devel glibc-devel
 Requires: coreutils
@@ -44,5 +45,8 @@ make %{?_smp_mflags}
 /usr/sbin/nfs-logtools
 %changelog
 
+* Wed Oct 18 2023 ruizhe <ruizhe@nfschina.com> - 1.0.0-5
+- Fix cannot reopen when program crashes
+
 * Wed Oct 18 2023 ruizhe <ruizhe@nfschina.com> - 1.0.0-4
 - Fix: after export all log, program abort