Re: [jira] Created: (HARMONY-5290) [drlvm][jit] SIGSEGV in JIT code

[Gregory Shimansky]

Pavel Ozhdikhin said the following on 11.12.2007 17:50:
Hello all,
According to our code freeze rules we need approval from 2 committers to
commit the patch from https://issues.apache.org/jira/browse/HARMONY-5290

The bug is a regression causing DRLVM crash on several functional and
reliability tests. The bug is not platform-specific and the fix looks safe.

Committers, please vote.

+1 to commit the fix, but since the bug was filed on Linux I think it 
should be checked on Linux as well.

On 12/11/07, Pavel Ozhdikhin <[EMAIL PROTECTED]> wrote:
The fix is in JIRA, I'm running tests to check it.

Thanks,
Pavel


 On 12/11/07, Tim Ellison <[EMAIL PROTECTED]> wrote:
This issue does seem to be the cause of a number of current test
failures.
Anyone care to take ownership of it?

Regards,
Tim

Andrey Pavlenko (JIRA) wrote:
[drlvm][jit] SIGSEGV in JIT code
--------------------------------

                 Key: HARMONY-5290
                 URL:
https://issues.apache.org/jira/browse/HARMONY-5290
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
         Environment: Linux x86/x64
            Reporter: Andrey Pavlenko
            Priority: Critical


The following test causes VM crash.  I've marked this issue as
critical because it seems to be a regression and causes an error of the
functional test 
http://people.apache.org/~smishura/r602572/Linux_x86/func/functional/org/apache/harmony/test/func/jit/HLO/peel/LoopVar2/738_LoopVar2.html

public class Test {

    boolean flag = false;

    public static void main(String[] args) {
        System.exit((new Test()).test());
    }

    public int test() {
        int limit = 100000;
        int i = -1;
        int k = -1;
        while (k < limit) {
            k++;
            for (i = 0; i < k; i++) {
                flag = true;
            }
        }
        return ((k == limit) && (i == limit)) ? 0 : 1;
    }
}

SIGSEGV in VM code.
Stack trace:
  0: Jitrino::ControlFlowGraph::addEdge(Jitrino::Node*,
Jitrino::Node*, Jitrino::Edge*, double) ( walkers.cpp:-1)
  1: Jitrino::ControlFlowGraph::addEdge(Jitrino::Node*,
Jitrino::Node*, double) (walkers.cpp:-1)
  2: Jitrino::FlowGraph::doTranslatorCleanupPhase(Jitrino::IRManager&)
(walkers.cpp:-1)
  3: Jitrino::TranslatorSession::postTranslatorCleanup() (
walkers.cpp:-1)
  4: Jitrino::TranslatorSession::run() (walkers.cpp:-1)
  5: Jitrino::runPipeline(Jitrino::CompilationContext*) (
walkers.cpp:-1 )
  6: Jitrino::compileMethod(Jitrino::CompilationContext*) (
walkers.cpp:-1)
  7: Jitrino::Jitrino::CompileMethod(Jitrino::CompilationContext*) (
walkers.cpp:-1)
  8: JIT_compile_method_with_params (??:-1)
  9: Dll_JIT::compile_method_with_params(void*, Method*,
OpenMethodExecutionParams) (apr_strtok.c:-1)
 10: compile_do_compilation_jit(Method*, JIT*) (apr_strtok.c:-1)
 11: vm_compile_method (??:-1)
 12: DrlEMImpl::methodProfileIsReady(MethodProfile*) (inet_pton.c:-1)
 13: EBProfileCollector::onTimeout() (inet_pton.c:-1)
 14: DrlEMImpl::tbsTimeout() (inet_pton.c:-1)
 15: ProfilerThreadTimeout (em_intf.cpp:-1)
 16: Java_java_lang_EMThreadSupport_onTimeout (??:-1)
 17: 0xA6093C26  <Generated stub>
 18: java/lang/EMThreadSupport.run()V (EMThreadSupport.java:68)
 19: java/lang/EMThreadSupport$1.run()V ( EMThreadSupport.java:44)
 20: java/lang/Thread.run()V (Thread.java:657)
 21: java/lang/Thread.runImpl()V (Thread.java:668)
 22: ?? (??:-1)
 23: .L294 (ini_iA32.cpp:-1)
 24: DrlEMImpl::executeMethod(_jmethodID*, jvalue*, jvalue*)
(inet_pton.c:-1)
 25: ExecuteMethod (em_intf.cpp:-1)
 26: vm_execute_java_method_array (apr_strtok.c:-1)
 27: call_method_no_ref_result(JNIEnv_External*, _jobject*,
_jmethodID*, jvalue*, jvalue*, int) (jni_method.cpp:-1)
 28: CallVoidMethodA(JNIEnv_External*, _jobject*, _jmethodID*,
jvalue*) (apr_strtok.c:-1)
 29: jthread_wrapper_start_proc(void*) (apr_strtok.c:-1)
 30: start_thread (??:-1)
 31: clone (??:-1)
<end of stack trace>
Segmentation fault