From 93e45deee0a44c2ad4ae2bef6fe6951ad0607223 Mon Sep 17 00:00:00 2001 From: rdurbin Date: Tue, 19 Mar 2013 11:33:11 -0700 Subject: [PATCH] 7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test 7123945: runtime/6878713/Test6878713.sh require about 2G of native memory, swaps and times out Summary: Add new diagnostic option -XX:MallocMaxTestWords=NNN and fix Test6878713.sh. Reviewed-by: dcubed, coleenp, dholmes, iklam --- src/share/vm/runtime/globals.hpp | 4 + src/share/vm/runtime/os.cpp | 39 ++++++++- test/runtime/6878713/Test6878713.sh | 131 +++++++++++++++++++++++++--- 3 files changed, 157 insertions(+), 17 deletions(-) diff --git a/src/share/vm/runtime/globals.hpp b/src/share/vm/runtime/globals.hpp index 9645f625a..489999f6c 100644 --- a/src/share/vm/runtime/globals.hpp +++ b/src/share/vm/runtime/globals.hpp @@ -2905,6 +2905,10 @@ class CommandLineFlags { "if non-zero, start verifying C heap after Nth call to " \ "malloc/realloc/free") \ \ + diagnostic(uintx, MallocMaxTestWords, 0, \ + "if non-zero, max # of Words that malloc/realloc can allocate " \ + "(for testing only)") \ + \ product(intx, TypeProfileWidth, 2, \ "number of receiver types to record in call/cast profile") \ \ diff --git a/src/share/vm/runtime/os.cpp b/src/share/vm/runtime/os.cpp index b40906803..05fa2d07e 100644 --- a/src/share/vm/runtime/os.cpp +++ b/src/share/vm/runtime/os.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -80,6 +80,8 @@ julong os::num_frees = 0; // # of calls to free julong os::free_bytes = 0; // # of bytes freed #endif +static juint cur_malloc_words = 0; // current size for MallocMaxTestWords + void os_init_globals() { // Called from init_globals(). // See Threads::create_vm() in thread.cpp, and init.cpp. @@ -570,6 +572,26 @@ void verify_block(void* memblock) { } #endif +// +// This function supports testing of the malloc out of memory +// condition without really running the system out of memory. +// +static u_char* testMalloc(size_t alloc_size) { + + if (MallocMaxTestWords > 0 && + (cur_malloc_words + (alloc_size / BytesPerWord)) > MallocMaxTestWords) { + return NULL; + } + + u_char* ptr = (u_char*)::malloc(alloc_size); + + if (MallocMaxTestWords > 0 && (ptr != NULL)) { + Atomic::add(((jint) (alloc_size / BytesPerWord)), + (volatile jint *) &cur_malloc_words); + } + return ptr; +} + void* os::malloc(size_t size, MEMFLAGS memflags, address caller) { NOT_PRODUCT(inc_stat_counter(&num_mallocs, 1)); NOT_PRODUCT(inc_stat_counter(&alloc_bytes, size)); @@ -579,11 +601,22 @@ void* os::malloc(size_t size, MEMFLAGS memflags, address caller) { // if NULL is returned the calling functions assume out of memory. size = 1; } - if (size > size + space_before + space_after) { // Check for rollover. + + const size_t alloc_size = size + space_before + space_after; + + if (size > alloc_size) { // Check for rollover. return NULL; } + NOT_PRODUCT(if (MallocVerifyInterval > 0) check_heap()); - u_char* ptr = (u_char*)::malloc(size + space_before + space_after); + + u_char* ptr; + + if (MallocMaxTestWords > 0) { + ptr = testMalloc(alloc_size); + } else { + ptr = (u_char*)::malloc(alloc_size); + } #ifdef ASSERT if (ptr == NULL) return NULL; diff --git a/test/runtime/6878713/Test6878713.sh b/test/runtime/6878713/Test6878713.sh index a452ad58f..c66c95b0e 100644 --- a/test/runtime/6878713/Test6878713.sh +++ b/test/runtime/6878713/Test6878713.sh @@ -1,10 +1,38 @@ #!/bin/sh +# +# Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. +# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. +# +# This code is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License version 2 only, as +# published by the Free Software Foundation. +# +# This code is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# version 2 for more details (a copy is included in the LICENSE file that +# accompanied this code). +# +# You should have received a copy of the GNU General Public License version +# 2 along with this work; if not, write to the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. +# +# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA +# or visit www.oracle.com if you need additional information or have any +# questions. +# + + + ## ## @test ## @bug 6878713 +## @bug 7030610 +## @bug 7037122 +## @bug 7123945 ## @summary Verifier heap corruption, relating to backward jsrs -## @run shell/timeout=120 Test6878713.sh +## @run shell Test6878713.sh ## if [ "${TESTSRC}" = "" ] @@ -49,23 +77,98 @@ case "$OS" in ;; esac -JEMMYPATH=${CPAPPEND} -CLASSPATH=.${PS}${TESTCLASSES}${PS}${JEMMYPATH} ; export CLASSPATH - -THIS_DIR=`pwd` +CLASSPATH=.${PS}${TESTCLASSES} ; export CLASSPATH ${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -version -${TESTJAVA}${FS}bin${FS}jar xvf ${TESTSRC}${FS}testcase.jar +TARGET_CLASS=OOMCrashClass1960_2 -${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} OOMCrashClass1960_2 > test.out 2>&1 +echo "INFO: extracting the target class." +${TESTJAVA}${FS}bin${FS}jar xvf \ + ${TESTSRC}${FS}testcase.jar ${TARGET_CLASS}.class -if [ -s core -o -s "hs_*.log" ] -then - cat hs*.log - echo "Test Failed" - exit 1 +# remove any hs_err_pid that might exist here +rm -f hs_err_pid*.log + +echo "INFO: checking for 32-bit versus 64-bit VM." +${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -version 2>&1 \ + | grep "64-Bit [^ ][^ ]* VM" > /dev/null 2>&1 +status="$?" +if [ "$status" = 0 ]; then + echo "INFO: testing a 64-bit VM." + is_64_bit=true else - echo "Test Passed" - exit 0 + echo "INFO: testing a 32-bit VM." +fi + +if [ "$is_64_bit" = true ]; then + # limit is 768MB in 8-byte words (1024 * 1024 * 768 / 8) == 100663296 + MALLOC_MAX=100663296 +else + # limit is 768MB in 4-byte words (1024 * 1024 * 768 / 4) == 201326592 + MALLOC_MAX=201326592 +fi +echo "INFO: MALLOC_MAX=$MALLOC_MAX" + +echo "INFO: executing the target class." +# -XX:+PrintCommandLineFlags for debugging purposes +# -XX:+IgnoreUnrecognizedVMOptions so test will run on a VM without +# the new -XX:MallocMaxTestWords option +# -XX:+UnlockDiagnosticVMOptions so we can use -XX:MallocMaxTestWords +# -XX:MallocMaxTestWords limits malloc to $MALLOC_MAX +${TESTJAVA}${FS}bin${FS}java \ + -XX:+PrintCommandLineFlags \ + -XX:+IgnoreUnrecognizedVMOptions \ + -XX:+UnlockDiagnosticVMOptions \ + -XX:MallocMaxTestWords=$MALLOC_MAX \ + ${TESTVMOPTS} ${TARGET_CLASS} > test.out 2>&1 + +echo "INFO: begin contents of test.out:" +cat test.out +echo "INFO: end contents of test.out." + +echo "INFO: checking for memory allocation error message." +# We are looking for this specific memory allocation failure mesg so +# we know we exercised the right allocation path with the test class: +MESG1="Native memory allocation (malloc) failed to allocate 25696531[0-9][0-9] bytes" +grep "$MESG1" test.out +status="$?" +if [ "$status" = 0 ]; then + echo "INFO: found expected memory allocation error message." +else + echo "INFO: did not find expected memory allocation error message." + + # If we didn't find MESG1 above, then there are several scenarios: + # 1) -XX:MallocMaxTestWords is not supported by the current VM and we + # didn't fail TARGET_CLASS's memory allocation attempt; instead + # we failed to find TARGET_CLASS's main() method. The TARGET_CLASS + # is designed to provoke a memory allocation failure during class + # loading; we actually don't care about running the class which is + # why it doesn't have a main() method. + # 2) we failed a memory allocation, but not the one we were looking + # so it might be that TARGET_CLASS no longer tickles the same + # memory allocation code path + # 3) TARGET_CLASS reproduces the failure mode (SIGSEGV) fixed by + # 6878713 because the test is running on a pre-fix VM. + echo "INFO: checking for no main() method message." + MESG2="Error: Main method not found in class" + grep "$MESG2" test.out + status="$?" + if [ "$status" = 0 ]; then + echo "INFO: found no main() method message." + else + echo "FAIL: did not find no main() method message." + # status is non-zero for exit below + + if [ -s hs_err_pid*.log ]; then + echo "INFO: begin contents of hs_err_pid file:" + cat hs_err_pid*.log + echo "INFO: end contents of hs_err_pid file." + fi + fi +fi + +if [ "$status" = 0 ]; then + echo "PASS: test found one of the expected messages." fi +exit "$status" -- GitLab