cf3105821b
Add work around for 6971851. Abort if 'histo:live' option isn't supported. Reviewed-by: alanb, darcy
255 lines
7.9 KiB
Bash
255 lines
7.9 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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# questions.
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#
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# @test
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# @bug 6942989
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# @summary Check for WeakReference leak in Logger objects
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# @author Daniel D. Daugherty
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#
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# @library ../../../sun/tools/common
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# @build SimpleApplication ShutdownSimpleApplication
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# @build LoggerWeakRefLeak
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# @run shell/timeout=240 LoggerWeakRefLeak.sh
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# The timeout is: 2 minutes for infrastructure and 2 minutes for the test
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#
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. ${TESTSRC}/../../../sun/tools/common/CommonSetup.sh
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. ${TESTSRC}/../../../sun/tools/common/ApplicationSetup.sh
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TEST_NAME="LoggerWeakRefLeak"
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TARGET_CLASS="java\.lang\.ref\.WeakReference"
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# MAIN begins here
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#
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seconds=
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if [ "$#" -gt 0 ]; then
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seconds="$1"
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fi
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# see if this version of jmap supports the '-histo:live' option
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jmap_option="-histo:live"
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set +e
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"${JMAP}" 2>&1 | grep ':live' > /dev/null 2>&1
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status="$?"
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set -e
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if [ "$status" != 0 ]; then
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# usage message doesn't show ':live' option
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if $isWindows; then
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# If SA isn't present, then jmap gives a different usage message
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# that doesn't show the ':live' option. However, that's a bug that
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# is covered by 6971851 so we try using the option just to be sure.
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# For some reason, this problem has only been seen on OpenJDK6 on
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# Windows. Not sure why.
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set +e
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# Note: Don't copy this code to try probing process 0 on Linux; it
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# will kill the process group in strange ways.
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"${JMAP}" "$jmap_option" 0 2>&1 | grep 'Usage' > /dev/null 2>&1
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status="$?"
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set -e
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if [ "$status" = 0 ]; then
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# Usage message generated so flag the problem.
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status=1
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else
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# No usage message so clear the flag.
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status=0
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fi
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fi
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if [ "$status" != 0 ]; then
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echo "ERROR: 'jmap $jmap_option' is not supported so this test"
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echo "ERROR: cannot work reliably. Aborting!"
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exit 2
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fi
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fi
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# Start application and use TEST_NAME.port for coordination
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startApplication "$TEST_NAME" "$TEST_NAME.port" $seconds
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finished_early=false
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decreasing_cnt=0
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increasing_cnt=0
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loop_cnt=0
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prev_instance_cnt=0
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MAX_JMAP_TRY_CNT=10
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jmap_retry_cnt=0
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loop_cnt_on_retry=0
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while true; do
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# see if the target process has finished its run and bail if it has
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set +e
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grep "^INFO: final loop count = " "$appOutput" > /dev/null 2>&1
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status="$?"
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set -e
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if [ "$status" = 0 ]; then
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break
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fi
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# Output format for 'jmap -histo' in JDK1.5.0:
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#
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# <#bytes> <#instances> <class_name>
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#
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# Output format for 'jmap -histo:live':
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#
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# <num>: <#instances> <#bytes> <class_name>
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#
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set +e
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"${JMAP}" "$jmap_option" "$appJavaPid" > "$TEST_NAME.jmap" 2>&1
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status="$?"
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set -e
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if [ "$status" != 0 ]; then
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echo "INFO: jmap exited with exit code = $status"
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# There are intermittent jmap failures; see 6498448.
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#
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# So far the following have been observed in a jmap call
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# that was not in a race with target process termination:
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#
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# (Solaris specific, 2nd sample)
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# <pid>: Unable to open door: target process not responding or HotSpot VM not loaded
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# The -F option can be used when the target process is not responding
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#
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# (on Solaris so far)
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# java.io.IOException
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#
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# (on Solaris so far, 1st sample)
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# <pid>: Permission denied
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#
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sed 's/^/INFO: /' "$TEST_NAME.jmap"
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if [ "$loop_cnt" = "$loop_cnt_on_retry" ]; then
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# loop count hasn't changed
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jmap_retry_cnt=`expr $jmap_retry_cnt + 1`
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else
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# loop count has changed so remember it
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jmap_retry_cnt=1
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loop_cnt_on_retry="$loop_cnt"
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fi
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# This is '-ge' because we have the original attempt plus
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# MAX_JMAP_TRY_CNT - 1 retries.
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if [ "$jmap_retry_cnt" -ge "$MAX_JMAP_TRY_CNT" ]; then
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echo "INFO: jmap failed $MAX_JMAP_TRY_CNT times in a row" \
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"without making any progress."
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echo "FAIL: jmap is unable to take any samples." >&2
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killApplication
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exit 2
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fi
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# short delay and try again
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# Note: sleep 1 didn't help with "<pid>: Permission denied"
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sleep 2
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echo "INFO: retrying jmap (retry=$jmap_retry_cnt, loop=$loop_cnt)."
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continue
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fi
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set +e
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instance_cnt=`grep "${PATTERN_WS}${TARGET_CLASS}${PATTERN_EOL}" \
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"$TEST_NAME.jmap" \
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| sed '
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# strip leading whitespace; does nothing in JDK1.5.0
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s/^'"${PATTERN_WS}${PATTERN_WS}"'*//
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# strip <#bytes> in JDK1.5.0; does nothing otherwise
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s/^[1-9][0-9]*'"${PATTERN_WS}${PATTERN_WS}"'*//
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# strip <num>: field; does nothing in JDK1.5.0
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s/^[1-9][0-9]*:'"${PATTERN_WS}${PATTERN_WS}"'*//
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# strip <class_name> field
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s/'"${PATTERN_WS}"'.*//
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'`
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set -e
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if [ -z "$instance_cnt" ]; then
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echo "INFO: instance count is unexpectedly empty"
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if [ "$loop_cnt" = 0 ]; then
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echo "INFO: on the first iteration so no sample was found."
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echo "INFO: There is likely a problem with the sed filter."
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echo "INFO: start of jmap output:"
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cat "$TEST_NAME.jmap"
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echo "INFO: end of jmap output."
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echo "FAIL: cannot find the instance count value." >&2
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killApplication
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exit 2
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fi
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else
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echo "INFO: instance_cnt = $instance_cnt"
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if [ "$instance_cnt" -gt "$prev_instance_cnt" ]; then
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increasing_cnt=`expr $increasing_cnt + 1`
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else
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# actually decreasing or the same
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decreasing_cnt=`expr $decreasing_cnt + 1`
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# For these particular WeakReference leaks, the count was
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# always observed to be increasing so if we get a decreasing
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# or the same count, then the leaks are fixed in the bits
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# being tested.
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echo "INFO: finishing early due to non-increasing instance count."
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finished_early=true
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killApplication
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break
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fi
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prev_instance_cnt="$instance_cnt"
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fi
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# delay between samples
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sleep 5
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loop_cnt=`expr $loop_cnt + 1`
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done
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if [ $finished_early = false ]; then
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stopApplication "$TEST_NAME.port"
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waitForApplication
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fi
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echo "INFO: $TEST_NAME has finished running."
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echo "INFO: increasing_cnt = $increasing_cnt"
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echo "INFO: decreasing_cnt = $decreasing_cnt"
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if [ "$jmap_retry_cnt" -gt 0 ]; then
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echo "INFO: jmap_retry_cnt = $jmap_retry_cnt (in $loop_cnt iterations)"
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fi
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if [ "$loop_cnt" = 0 ]; then
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echo "FAIL: jmap is unable to take any samples." >&2
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exit 2
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fi
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echo "INFO: The instance count of" `eval echo $TARGET_CLASS` "objects"
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if [ "$decreasing_cnt" = 0 ]; then
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echo "INFO: is always increasing."
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echo "FAIL: This indicates that there is a memory leak." >&2
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exit 2
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fi
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echo "INFO: is not always increasing."
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echo "PASS: This indicates that there is not a memory leak."
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exit 0
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