A script which sets up an ext3 testbed (ala llext3.sh), and then runs some

failure tests (setattr, create, unlink, rename) that would write to disk.

diff --git a/lustre/tests/runfailure-mds b/lustre/tests/runfailure-mds
new file mode 100755 (executable)
index 0000000..adb5a1f
--- /dev/null
+++ b/lustre/tests/runfailure-mds
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+SRCDIR="`dirname $0`"
+. $SRCDIR/common.sh
+
+NETWORK=tcp
+LOCALHOST=localhost
+SERVER=localhost
+PORT=1234
+
+setup
+setup_portals
+
+new_fs ext2 /tmp/ost 10000
+OST=$LOOPDEV
+MDSFS=ext3
+new_fs ${MDSFS} /tmp/mds 10000
+MDS=$LOOPDEV
+
+echo 0xffffffff > /proc/sys/portals/debug
+
+$OBDCTL <<EOF
+device 0
+attach mds
+setup ${MDS} ${MDSFS}
+device 1
+attach obdext2
+setup ${OST}
+device 2
+attach ost
+setup 1
+device 3
+attach osc
+setup -1
+quit
+EOF
+
+mount -t lustre_light -o device=3 none /mnt/obd
+
+test_fail() {
+       echo $1 > /proc/sys/lustre/fail_loc
+       shift
+       echo "Running '$*'"
+       $* 
+
+       echo 0 > /proc/sys/lustre/fail_loc
+
+       echo "Cleaning up and restarting MDS"
+       umount /mnt/obd
+       $OBDCTL <<- EOF
+       device 0
+       cleanup
+       detach
+       attach mds
+       setup ${MDS} ${MDSFS}
+       EOF
+       mount -t lustre_light -o device=3 none /mnt/obd
+}
+
+set -vx
+
+touch /mnt/obd/foo
+sync
+
+# OBD_FAIL_MDS_REINT_SETATTR_WRITE - MDS will discard data from setattr
+test_fail 0x10a chmod 000 /mnt/obd/foo
+ls -l /mnt/obd/foo
+
+# OBD_FAIL_MDS_REINT_CREATE_WRITE - MDS will discard data from create
+test_fail 0x10c touch /mnt/obd/bar
+ls /mnt/obd
+
+# OBD_FAIL_MDS_REINT_UNLINK_WRITE - MDS will discard data from create
+test_fail 0x10e rm /mnt/obd/foo
+ls /mnt/obd
+
+# OBD_FAIL_MDS_REINT_RENAME_WRITE - MDS will discard data from create
+test_fail 0x112 mv /mnt/obd/foo /mnt/obd/bar
+ls /mnt/obd
+
+echo "Done."