Bug ID: JDK-7109987 SIGSEGV in nmethod::total

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hs23Resolved

JSR292 stress test crashes with

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x0fa12d1c, pid=20165, tid=1247306928
#
# JRE version: 7.0-b147
# Java VM: Java HotSpot(TM) Embedded Client VM (23.0-b03-internal-201111072242.kvn.7059047-fastdebug mixed mode, sharing linux-ppc )
# Problematic frame:
# V  [libjvm.so+0x871d1c]  nmethod::total_size() const+0x4

EVALUATION Not embedded specific. Issue seems to have been introduced by 7097546 When compilation fails, PrintCompilation can crash because it tries to dump the size of the NULL buffer [2011-11-08T07:02:41.37] 240 COMPILE SKIPPED: CodeBuffer overflow (not retryable) [2011-11-08T07:02:41.37] 4556 240 # [2011-11-08T07:02:41.37] # A fatal error has been detected by the Java Runtime Environment: [2011-11-08T07:02:41.37] # [2011-11-08T07:02:41.37] # SIGSEGV (0xb) at pc=0x0fa12d1c, pid=20165, tid=1247306928 Here is a fix that should work: diff --git a/src/share/vm/compiler/compileBroker.cpp b/src/share/vm/compiler/compileBroker.cpp --- a/src/share/vm/compiler/compileBroker.cpp +++ b/src/share/vm/compiler/compileBroker.cpp @@ -1747,7 +1747,7 @@ tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp tty->print("%4d ", compile_id); // print compilation number tty->print("%s ", (is_osr ? "%" : " ")); - tty->print_cr("size: %d time: %d inlined: %d bytes", task->code()->total_size(), time.milliseconds(), task->num_inlined_bytecodes()); + tty->print_cr("size: %d time: %d inlined: %d bytes", (task->code() == NULL) ? 0 : task->code()->total_size(), time.milliseconds(), task->num_inlined_bytecodes()); } if (compilable == ciEnv::MethodCompilable_never) {

09-11-2011