Module Name: src
Committed By: mlelstv
Date: Tue Apr 16 22:05:45 UTC 2013
Modified Files:
src/tests/kernel: Makefile
Added Files:
src/tests/kernel: t_umountstress.sh
Log Message:
First attempt at stress testing umount of a busy disk.
To generate a diff of this commit:
cvs rdiff -u -r1.32 -r1.33 src/tests/kernel/Makefile
cvs rdiff -u -r0 -r1.1 src/tests/kernel/t_umountstress.sh
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/kernel/Makefile
diff -u src/tests/kernel/Makefile:1.32 src/tests/kernel/Makefile:1.33
--- src/tests/kernel/Makefile:1.32 Thu Feb 28 15:31:22 2013
+++ src/tests/kernel/Makefile Tue Apr 16 22:05:44 2013
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.32 2013/02/28 15:31:22 martin Exp $
+# $NetBSD: Makefile,v 1.33 2013/04/16 22:05:44 mlelstv Exp $
NOMAN= # defined
@@ -16,6 +16,7 @@ TESTS_C+= t_subr_prf
TESTS_C+= t_kauth_pr_47598
TESTS_SH= t_umount
+TESTS_SH+= t_umountstress
TESTS_SH+= t_ps_strings
BINDIR= ${TESTSDIR}
Added files:
Index: src/tests/kernel/t_umountstress.sh
diff -u /dev/null src/tests/kernel/t_umountstress.sh:1.1
--- /dev/null Tue Apr 16 22:05:45 2013
+++ src/tests/kernel/t_umountstress.sh Tue Apr 16 22:05:44 2013
@@ -0,0 +1,113 @@
+# $NetBSD: t_umountstress.sh,v 1.1 2013/04/16 22:05:44 mlelstv Exp $
+#
+# Copyright (c) 2013 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+TMPMP=umount-stress_mount
+TMPIM=umount-stress.im
+
+VND=vnd0
+BVND=/dev/${VND}
+CVND=/dev/r${VND}
+MPART=a
+
+atf_test_case umountstress cleanup
+umountstress_head()
+{
+ atf_set "descr" "Checks stressing unmounting a busy filesystem"
+ atf_set "require.user" "root"
+}
+umountstress_body()
+{
+ cat >disktab <<EOF
+floppy288|2.88MB 3.5in Extra High Density Floppy:\
+ :ty=floppy:se#512:nt#2:rm#300:ns#36:nc#80:\
+ :pa#5760:oa#0:ba#4096:fa#512:ta=4.2BSD:\
+ :pb#5760:ob#0:\
+ :pc#5760:oc#0:
+EOF
+
+ echo "*** Creating a dummy directory tree at" \
+ "${TMPMP} mounted on ${TMPIM}"
+
+ atf_check -o ignore -e ignore mkdir ${TMPMP}
+ atf_check -o ignore -e ignore touch ${TMPMP}/under_the_mount
+ atf_check -o ignore -e ignore dd if=/dev/zero of=${TMPIM} count=5860
+ atf_check -o ignore -e ignore vnconfig -v ${VND} ${TMPIM}
+ atf_check -o ignore -e ignore disklabel -f disktab -rw ${VND} floppy288
+ atf_check -o ignore -e ignore newfs -i 500 -b 8192 -f 1024 ${CVND}${MPART}
+ atf_check -o ignore -e ignore mount -o async ${BVND}${MPART} ${TMPMP}
+
+ echo "*** Testing unmount"
+
+ touch ${TMPMP}/hold
+ exec 3< ${TMPMP}/hold
+
+ (
+ for l in 0 1 2 3 4 5 6 7 8 9 10; do
+ for i in 0 1 2 3; do
+ for j in 0 1 2 3 4 5 6 7 8 9; do
+ for k in 0 1 2 3 4 5 6 7 8 9; do
+ dd msgfmt=quiet if=/dev/zero count=1 of=test$i$j$k
+ if [ $? -ne 0 ]; then
+ atf_fail "File operation failed"
+ fi
+ done
+ done
+ done
+ done
+ ) &
+ busypid=$!
+
+ while kill 2>/dev/null -0 $busypid; do
+ if err=$(umount ${TMPMP} 2>&1); then
+ kill $busypid
+ wait
+ atf_fail "Unmount succeeded while busy"
+ else
+ case $err in
+ *:\ Device\ busy)
+ ;;
+ *)
+ kill $busypid
+ wait
+ atf_fail "Unmount failed: $err"
+ ;;
+ esac
+ fi
+ done
+ wait
+}
+umountstress_cleanup()
+{
+ echo "*** Cleaning up ${TMPMP}, ${TMPIM}."
+ umount -f "${TMPMP}"
+ vnconfig -u "${VND}"
+}
+
+atf_init_test_cases()
+{
+ atf_add_test_case umountstress
+}
