run-test: Store pid of spawned qemu process to only kill that pid later

We used to kill all processes that had 'qemu' in their name. This was
obviously not a good thing for other running qemu processes. Record the
pid of the spawned process to only kill that one later.

Signed-off-by: Amit Shah <amit.shah@redhat.com>

1 files changed, 22 insertions, 2 deletions

diff --git a/run-test.sh b/run-test.sh
index 6ebc3f3..8bcfa51 100755
--- a/run-test.sh
+++ b/run-test.sh
@@ -32,12 +32,31 @@ MISCOPT="-net none -enable-kvm -m 1G -serial file:/tmp/amit/test-serial.log \
 KVMOPT="-smp $VCPUS"
 SNAPSHOT="-snapshot"
 
+QEMU_PIDFILE=/tmp/amit/qemu.pid
+
+function kill_qemu {
+
+    if [ -s $QEMU_PIDFILE ]; then
+	declare -i qemu_pid
+
+	qemu_pid=`cat $QEMU_PIDFILE`
+	rm $QEMU_PIDFILE
+	kill -9 $qemu_pid
+	qemu_pid=
+    fi
+}
+
 function do_test {
+    declare -i qemu_pid
+
     pkill -9 auto-virtserial
-    pkill -9 qemu
+    kill_qemu
 
     echo $QEMU $QEMU_OPTS
     $QEMU $QEMU_OPTS &
+    qemu_pid=$!
+    echo $qemu_pid > $QEMU_PIDFILE
+    qemu_pid=
 
     # Give some time for the guest to come up
     sleep 5
@@ -45,7 +64,8 @@ function do_test {
     > /tmp/amit/guest-big-file
     > /tmp/amit/guest-csumfile
     time ./auto-virtserial
-    pkill qemu
+
+    kill_qemu
 }
 
 # -- Iteration 1: new kernel, new qemu --