diff --git a/demos/linux-ltp/0001-Make-it-work-on-Occlum.patch b/demos/linux-ltp/0001-Make-it-work-on-Occlum.patch
new file mode 100644
index 00000000..37af3a66
--- /dev/null
+++ b/demos/linux-ltp/0001-Make-it-work-on-Occlum.patch
@@ -0,0 +1,104 @@
+From a8b88e78b863d54135436a866d375c67aaaec905 Mon Sep 17 00:00:00 2001
+From: "Zheng, Qi" <huaiqing.zq@antgroup.com>
+Date: Tue, 19 Oct 2021 10:53:08 +0800
+Subject: [PATCH] Make it work on Occlum
+
+Signed-off-by: Zheng, Qi <huaiqing.zq@antgroup.com>
+---
+ lib/tst_kvercmp.c |  4 +++-
+ lib/tst_test.c    | 21 +++++++++++----------
+ 2 files changed, 14 insertions(+), 11 deletions(-)
+
+diff --git a/lib/tst_kvercmp.c b/lib/tst_kvercmp.c
+index 8bf65d309..d299c4cb5 100644
+--- a/lib/tst_kvercmp.c
++++ b/lib/tst_kvercmp.c
+@@ -102,7 +102,9 @@ int tst_kvercmp(int r1, int r2, int r3)
+ {
+ 	struct utsname uval;
+ 
+-	uname(&uval);
++	//uname(&uval);
++	/* Hack the uname kernel version to 4.19.1 to make it work on Occlum */
++	strcpy(uval.release, "4.19.1");
+ 
+ 	return tst_kvcmp(uval.release, r1, r2, r3);
+ }
+diff --git a/lib/tst_test.c b/lib/tst_test.c
+index ec80e17a6..a8c414ac8 100644
+--- a/lib/tst_test.c
++++ b/lib/tst_test.c
+@@ -1163,7 +1163,7 @@ static void run_tests(void)
+ 		tst_test->test_all();
+ 
+ 		if (getpid() != main_pid) {
+-			exit(0);
++			_exit(0);
+ 		}
+ 
+ 		tst_reap_children();
+@@ -1178,7 +1178,7 @@ static void run_tests(void)
+ 		tst_test->test(i);
+ 
+ 		if (getpid() != main_pid) {
+-			exit(0);
++			_exit(0);
+ 		}
+ 
+ 		tst_reap_children();
+@@ -1230,7 +1230,7 @@ static void heartbeat(void)
+ 		exit(TBROK);
+ 	}
+ 
+-	kill(getppid(), SIGUSR1);
++	//kill(getppid(), SIGUSR1);
+ }
+ 
+ static void testrun(void)
+@@ -1265,7 +1265,7 @@ static void testrun(void)
+ 	}
+ 
+ 	do_test_cleanup();
+-	exit(0);
++	_exit(0);
+ }
+ 
+ static pid_t test_pid;
+@@ -1374,27 +1374,28 @@ static int fork_testrun(void)
+ {
+ 	int status;
+ 
+-	if (tst_test->timeout)
++	/*if (tst_test->timeout)
+ 		tst_set_timeout(tst_test->timeout);
+ 	else
+-		tst_set_timeout(300);
++		tst_set_timeout(300);*/
+ 
+ 	SAFE_SIGNAL(SIGINT, sigint_handler);
+ 
+-	test_pid = fork();
++	test_pid = vfork();
+ 	if (test_pid < 0)
+ 		tst_brk(TBROK | TERRNO, "fork()");
+ 
+ 	if (!test_pid) {
+-		SAFE_SIGNAL(SIGALRM, SIG_DFL);
++		tst_res(TINFO, "In Child process ...\n");
++		//SAFE_SIGNAL(SIGALRM, SIG_DFL);
+ 		SAFE_SIGNAL(SIGUSR1, SIG_DFL);
+ 		SAFE_SIGNAL(SIGINT, SIG_DFL);
+ 		SAFE_SETPGID(0, 0);
+ 		testrun();
+ 	}
+ 
+-	SAFE_WAITPID(test_pid, &status, 0);
+-	alarm(0);
++	waitpid(test_pid, &status, 0);
++	//alarm(0);
+ 	SAFE_SIGNAL(SIGINT, SIG_DFL);
+ 
+ 	if (tst_test->taint_check && tst_taint_check()) {
+-- 
+2.25.1
+
diff --git a/demos/linux-ltp/0002-Ignore-some-test-cases-which-crash-the-Occlum.patch b/demos/linux-ltp/0002-Ignore-some-test-cases-which-crash-the-Occlum.patch
new file mode 100644
index 00000000..59c3e515
--- /dev/null
+++ b/demos/linux-ltp/0002-Ignore-some-test-cases-which-crash-the-Occlum.patch
@@ -0,0 +1,261 @@
+From 93d9429fa9b0b3856258422894697621c5c093b9 Mon Sep 17 00:00:00 2001
+From: "Zheng, Qi" <huaiqing.zq@antgroup.com>
+Date: Tue, 19 Oct 2021 17:17:03 +0800
+Subject: [PATCH] Ignore some test cases which crash the Occlum
+
+Signed-off-by: Zheng, Qi <huaiqing.zq@antgroup.com>
+---
+ runtest/syscalls | 80 ++++++++++++++++++++++++------------------------
+ 1 file changed, 40 insertions(+), 40 deletions(-)
+
+diff --git a/runtest/syscalls b/runtest/syscalls
+index 29d7752c7..0d2f9dc67 100644
+--- a/runtest/syscalls
++++ b/runtest/syscalls
+@@ -93,7 +93,7 @@ clock_nanosleep02 clock_nanosleep02
+ clock_nanosleep03 clock_nanosleep03
+ clock_nanosleep04 clock_nanosleep04
+ 
+-clock_gettime01 clock_gettime01
++#clock_gettime01 clock_gettime01
+ clock_gettime02 clock_gettime02
+ clock_gettime03 clock_gettime03
+ clock_gettime04 clock_gettime04
+@@ -124,7 +124,7 @@ close_range02 close_range02
+ 
+ confstr01 confstr01
+ 
+-connect01 connect01
++#connect01 connect01
+ connect02 connect02
+ 
+ creat01 creat01
+@@ -148,14 +148,14 @@ dup05 dup05
+ dup06 dup06
+ dup07 dup07
+ 
+-dup201 dup201
++#dup201 dup201
+ dup202 dup202
+ dup203 dup203
+ dup204 dup204
+ dup205 dup205
+ 
+ dup3_01 dup3_01
+-dup3_02 dup3_02
++#dup3_02 dup3_02
+ 
+ epoll_create01 epoll_create01
+ epoll_create02 epoll_create02
+@@ -165,7 +165,7 @@ epoll01 epoll-ltp
+ epoll_ctl01 epoll_ctl01
+ epoll_ctl02 epoll_ctl02
+ epoll_ctl03 epoll_ctl03
+-epoll_ctl04 epoll_ctl04
++#epoll_ctl04 epoll_ctl04
+ epoll_ctl05 epoll_ctl05
+ epoll_wait01 epoll_wait01
+ epoll_wait02 epoll_wait02
+@@ -407,8 +407,8 @@ fsync04 fsync04
+ 
+ ftruncate01 ftruncate01
+ ftruncate01_64 ftruncate01_64
+-ftruncate03 ftruncate03
+-ftruncate03_64 ftruncate03_64
++#ftruncate03 ftruncate03
++#ftruncate03_64 ftruncate03_64
+ ftruncate04 ftruncate04
+ ftruncate04_64 ftruncate04_64
+ 
+@@ -486,17 +486,17 @@ getrandom04 getrandom04
+ 
+ getresgid01 getresgid01
+ getresgid01_16 getresgid01_16
+-getresgid02 getresgid02
+-getresgid02_16 getresgid02_16
+-getresgid03 getresgid03
+-getresgid03_16 getresgid03_16
++#getresgid02 getresgid02
++#getresgid02_16 getresgid02_16
++#getresgid03 getresgid03
++#getresgid03_16 getresgid03_16
+ 
+ getresuid01 getresuid01
+ getresuid01_16 getresuid01_16
+-getresuid02 getresuid02
+-getresuid02_16 getresuid02_16
+-getresuid03 getresuid03
+-getresuid03_16 getresuid03_16
++#getresuid02 getresuid02
++#getresuid02_16 getresuid02_16
++#getresuid03 getresuid03
++#getresuid03_16 getresuid03_16
+ 
+ getrlimit01 getrlimit01
+ getrlimit02 getrlimit02
+@@ -522,7 +522,7 @@ getsockopt02 getsockopt02
+ gettid01 gettid01
+ 
+ gettimeofday01 gettimeofday01
+-gettimeofday02 gettimeofday02
++#gettimeofday02 gettimeofday02
+ 
+ getuid01 getuid01
+ getuid01_16 getuid01_16
+@@ -651,7 +651,7 @@ kill06 kill06
+ kill07 kill07
+ kill08 kill08
+ kill09 kill09
+-kill10 kill10
++#kill10 kill10
+ kill11 kill11
+ kill12 kill12
+ kill13 kill13
+@@ -742,13 +742,13 @@ mkdirat01 mkdirat01
+ mkdirat02 mkdirat02
+ 
+ mknod01 mknod01
+-mknod02 mknod02
+-mknod03 mknod03
+-mknod04 mknod04
++#mknod02 mknod02
++#mknod03 mknod03
++#mknod04 mknod04
+ mknod05 mknod05
+ mknod06 mknod06
+ mknod07 mknod07
+-mknod08 mknod08
++#mknod08 mknod08
+ mknod09 mknod09
+ 
+ #mknodat test cases
+@@ -767,11 +767,11 @@ mlock203 mlock203
+ qmm01 mmap001 -m 1
+ mmap01 mmap01
+ mmap02 mmap02
+-mmap03 mmap03
++#mmap03 mmap03
+ mmap04 mmap04
+ mmap05 mmap05
+-mmap06 mmap06
+-mmap07 mmap07
++#mmap06 mmap06
++#mmap07 mmap07
+ mmap08 mmap08
+ mmap09 mmap09
+ mmap12 mmap12
+@@ -961,7 +961,7 @@ pipe03 pipe03
+ pipe04 pipe04
+ pipe05 pipe05
+ pipe06 pipe06
+-pipe07 pipe07
++#pipe07 pipe07
+ pipe08 pipe08
+ pipe09 pipe09
+ pipe10 pipe10
+@@ -1073,7 +1073,7 @@ quotactl06 quotactl06
+ quotactl07 quotactl07
+ 
+ read01 read01
+-read02 read02
++#read02 read02
+ read03 read03
+ read04 read04
+ 
+@@ -1099,9 +1099,9 @@ realpath01 realpath01
+ reboot01 reboot01
+ reboot02 reboot02
+ 
+-recv01 recv01
++#recv01 recv01
+ 
+-recvfrom01 recvfrom01
++#recvfrom01 recvfrom01
+ 
+ recvmsg01 recvmsg01
+ recvmsg02 recvmsg02
+@@ -1121,7 +1121,7 @@ rename02 rename02
+ rename03 rename03
+ rename04 rename04
+ rename05 rename05
+-rename06 rename06
++#rename06 rename06
+ rename07 rename07
+ rename08 rename08
+ rename09 rename09
+@@ -1222,7 +1222,7 @@ semop01 semop01
+ semop02 semop02
+ semop03 semop03
+ 
+-send01 send01
++#send01 send01
+ send02 send02
+ 
+ sendfile02 sendfile02
+@@ -1250,7 +1250,7 @@ sendmsg03 sendmsg03
+ sendmmsg01 sendmmsg01
+ sendmmsg02 sendmmsg02
+ 
+-sendto01 sendto01
++#sendto01 sendto01
+ sendto02 sendto02
+ sendto03 sendto03
+ 
+@@ -1437,7 +1437,7 @@ signal02 signal02
+ signal03 signal03
+ signal04 signal04
+ signal05 signal05
+-signal06 signal06
++#signal06 signal06
+ 
+ signalfd01 signalfd01
+ 
+@@ -1516,7 +1516,7 @@ switch01 endian_switch01
+ 
+ symlink01 symlink01
+ symlink02 symlink02
+-symlink03 symlink03
++#symlink03 symlink03
+ symlink04 symlink04
+ symlink05 symlink05
+ 
+@@ -1696,14 +1696,14 @@ waitid02 waitid02
+ 
+ write01 write01
+ write02 write02
+-write03 write03
++#write03 write03
+ write04 write04
+-write05 write05
++#write05 write05
+ 
+-writev01 writev01
+-writev02 writev02
++#writev01 writev01
++#writev02 writev02
+ writev03 writev03
+-writev05 writev05
++#writev05 writev05
+ writev06 writev06
+ writev07 writev07
+ 
+@@ -1714,14 +1714,14 @@ futex_cmp_requeue01 futex_cmp_requeue01
+ futex_cmp_requeue02 futex_cmp_requeue02
+ futex_wait01 futex_wait01
+ futex_wait02 futex_wait02
+-futex_wait03 futex_wait03
++#futex_wait03 futex_wait03
+ futex_wait04 futex_wait04
+ futex_wait05 futex_wait05
+ futex_wake01 futex_wake01
+ futex_wake02 futex_wake02
+ futex_wake03 futex_wake03
+ futex_wake04 futex_wake04
+-futex_wait_bitset01 futex_wait_bitset01
++#futex_wait_bitset01 futex_wait_bitset01
+ 
+ memfd_create01 memfd_create01
+ memfd_create02 memfd_create02
+-- 
+2.25.1
+
diff --git a/demos/linux-ltp/README.md b/demos/linux-ltp/README.md
new file mode 100644
index 00000000..c4c96bfc
--- /dev/null
+++ b/demos/linux-ltp/README.md
@@ -0,0 +1,45 @@
+# Run Linux LTP on Occlum
+
+In this demo, we will show how to run the Linux LTP inside Occlum.
+
+Linux [`LTP`](https://github.com/linux-test-project/ltp) is the most popular test suite for Linux.
+Occlum could also apply the LTP to verify the stability and compatibility to Linux app.
+
+Because Occlum doesn't support `fork`, `vfork` has to be used instead in the LTP test.
+And a light weight [`test script`](./run-ltp.sh) running in Occlum is provided to be used in this demo.
+
+## Download and build the Linux LTP from source code
+```
+./dl_and_build_ltp.sh
+```
+
+Two patches are applied to make it work on Occlum.
+Many test cases are failed due to multiple reasons, such as syscall is not implemented or not completely implemented in Occlum.
+
+* Some test cases may make the Occlum crash or hang (Only checked the cases in syscalls), they are ignored by applying the [`patch`](./0002-Ignore-some-test-cases-which-crash-the-Occlum.patch)
+
+It may be updated with Occlum development.
+
+## Prepare the Occlum instance for LTP demo
+```
+./prepare_ltp.sh
+```
+
+## Run the LTP demo
+
+The script `run-ltp.sh` supports two optional arguments as below.
+```
+    usage: run-ltp.sh [options]
+
+    options:
+    -f CMDFILES     Execute user defined list of testcases
+    -s PATTERN      Only run test cases which match PATTERN.
+
+    example: run-ltp.sh -f syscalls -s timerfd
+```
+
+If no options provided, all the test cases in syscalls will be run one by one.
+
+Note:
+
+* The `CMDFILES` are defined in the LTP install path, such as `ltp_instance/image/opt/ltp/runtest/` in this demo.
diff --git a/demos/linux-ltp/dl_and_build_ltp.sh b/demos/linux-ltp/dl_and_build_ltp.sh
new file mode 100755
index 00000000..ca57ec23
--- /dev/null
+++ b/demos/linux-ltp/dl_and_build_ltp.sh
@@ -0,0 +1,21 @@
+#! /bin/bash
+set -e
+
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+
+TAG=20210927
+LTP_INSTALL_DIR=${SCRIPT_DIR}/ltp_install/ltp
+
+rm -rf ltp
+rm -rf $LTP_INSTALL_DIR && mkdir -p ${LTP_INSTALL_DIR}
+git clone -b $TAG https://github.com/linux-test-project/ltp.git
+
+pushd ltp
+# Apply patch to support running ltp in Occlum
+git apply ../0001-Make-it-work-on-Occlum.patch
+git apply ../0002-Ignore-some-test-cases-which-crash-the-Occlum.patch
+make autotools
+./configure --prefix=${LTP_INSTALL_DIR}
+make -j && make install
+
+popd
\ No newline at end of file
diff --git a/demos/linux-ltp/ltp.yaml b/demos/linux-ltp/ltp.yaml
new file mode 100644
index 00000000..50619b9b
--- /dev/null
+++ b/demos/linux-ltp/ltp.yaml
@@ -0,0 +1,63 @@
+includes:
+  - base.yaml
+# bash
+targets:
+  # copy LTP
+  - target: /opt
+    copy:
+      - dirs:
+        - ../ltp_install/ltp
+  # copy bash and busybox
+  - target: /bin
+    copy:
+      - files:
+        - /opt/occlum/toolchains/bash/glibc/bash
+        - /opt/occlum/toolchains/busybox/glibc/busybox
+  # copy test script
+  - target: /opt/ltp
+    copy:
+      - files:
+        - ../run-ltp.sh
+  - target: /bin
+    # build a symlink: ln -s $linksrc $target/linkname
+    createlinks:
+      - src: /bin/bash
+        linkname: sh
+      - src: /bin/busybox
+        linkname: basename
+      - src: /bin/busybox
+        linkname: echo
+      - src: /bin/busybox
+        linkname: sed
+      - src: /bin/busybox
+        linkname: grep
+      - src: /bin/busybox
+        linkname: cp
+      - src: /bin/busybox
+        linkname: mkdir
+      - src: /bin/busybox
+        linkname: cat
+      - src: /bin/busybox
+        linkname: dirname
+      - src: /bin/busybox
+        linkname: date
+      - src: /bin/busybox
+        linkname: pwd
+      - src: /bin/busybox
+        linkname: mktemp
+      - src: /bin/busybox
+        linkname: chmod
+      - src: /bin/busybox
+        linkname: rm
+      - src: /bin/busybox
+        linkname: awk
+      - src: /bin/busybox
+        linkname: cut
+      - src: /bin/busybox
+        linkname: tr
+      - src: /bin/busybox
+        linkname: id
+      - src: /bin/busybox
+        linkname: mv
+      - src: /bin/busybox
+        linkname: uname
diff --git a/demos/linux-ltp/prepare_ltp.sh b/demos/linux-ltp/prepare_ltp.sh
new file mode 100755
index 00000000..eb286061
--- /dev/null
+++ b/demos/linux-ltp/prepare_ltp.sh
@@ -0,0 +1,20 @@
+#! /bin/bash
+set -e
+
+rm -rf ltp_instance
+occlum new ltp_instance
+
+cd ltp_instance
+rm -rf image
+copy_bom -f ../ltp.yaml --root image --include-dir /opt/occlum/etc/template
+
+new_json="$(jq '.resource_limits.user_space_size = "3000MB" |
+                .resource_limits.kernel_space_heap_size ="512MB" |
+                .resource_limits.kernel_space_stack_size ="4MB" |
+                .resource_limits.max_num_of_threads = 96 |
+                .entry_points = [ "/opt/ltp" ] |
+                .env.default = [ "OCCLUM=yes", "LTPROOT=/opt/ltp", "TMP=/tmp", "HOME=/root" ]' Occlum.json)" && \
+echo "${new_json}" > Occlum.json
+
+occlum build
+
diff --git a/demos/linux-ltp/run-ltp.sh b/demos/linux-ltp/run-ltp.sh
new file mode 100755
index 00000000..3b533685
--- /dev/null
+++ b/demos/linux-ltp/run-ltp.sh
@@ -0,0 +1,109 @@
+#!/bin/sh
+
+setup()
+{
+    export LTPROOT=${LTPROOT:-/opt/ltp}
+    export TMP="/tmp"
+    export PATH="${PATH}:${LTPROOT}/testcases/bin:${LTPROOT}/bin"
+
+    [ -d "$LTPROOT/testcases/bin" ] ||
+    {
+        echo "FATAL: LTP not installed correctly"
+        echo "INFO:  Follow directions in INSTALL!"
+        exit 1
+    }
+
+    rm -rf ${TMP}/alltests*
+}
+
+usage()
+{
+    cat <<-EOF >&2
+
+    usage: ${0##*/} [options]
+
+    options:
+    -f CMDFILES     Execute user defined list of testcases
+    -h              Help. Prints all available options.
+    -s PATTERN      Only run test cases which match PATTERN.
+
+    example: ${0##*/} -f syscalls -s timerfd
+
+
+	EOF
+exit 0
+}
+
+main()
+{
+    local CMDFILES='syscalls'
+    local TAG_RESTRICT_STRING=
+
+    version_date=$(cat "$LTPROOT/Version")
+
+    echo "$version_date"
+
+    while getopts f:hs: arg
+    do  case $arg in
+        f)  # Execute user defined set of testcases.
+            CMDFILES=$OPTARG;;
+        h)  usage;;
+        s)  TAG_RESTRICT_STRING=$OPTARG;;
+        \?) usage;;
+        esac
+    done
+
+    echo "INFO: Test on files $CMDFILES"
+
+    [ -n "$CMDFILES" ] && \
+    {
+        #for scenfile in `echo "$CMDFILES" | tr ',' ' '`
+        for scenfile in `echo "$CMDFILES"`
+        do
+            [ -f "$scenfile" ] || scenfile="$LTPROOT/runtest/$scenfile"
+            cat "$scenfile" >> ${TMP}/alltests.tmp || \
+            {
+                echo "FATAL: unable to create command file"
+                rm -Rf "$TMP"
+                exit 1
+            }
+        done
+    }
+
+    # Skip the lines start with #
+    grep -v "^#"  ${TMP}/alltests.tmp > ${TMP}/alltests
+
+    # If enabled, execute only test cases that match the PATTERN
+    if [ -n "$TAG_RESTRICT_STRING" ]
+    then
+        mv -f ${TMP}/alltests ${TMP}/alltests.orig
+	    grep $TAG_RESTRICT_STRING ${TMP}/alltests.orig > ${TMP}/alltests
+        echo "INFO: Restricted to $TAG_RESTRICT_STRING"    
+    fi
+
+    #grep -v "^#" "${TMP}/alltests" | while read -r line
+    while read -r line
+    do
+        # ignore empty lines
+        [ "x$line" = x ] && continue
+
+        line_array=($line)
+        name=${line_array[0]}
+        bin=${line_array[1]}
+        len=${#line_array[@]}
+        idx=2
+        args=()
+
+        echo "INFO: Test case: $name"
+        if [ $len -gt 2 ]
+        then
+            args=${line_array[@]:$idx:$((len - idx))}
+        fi
+        echo "INFO: ... Commands: $bin $args"
+
+        $LTPROOT/testcases/bin/$bin
+    done < "${TMP}/alltests"
+}
+
+setup
+main "$@"
\ No newline at end of file