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From "Xiao-Feng Li" <xiaofeng...@gmail.com>
Subject Re: [jira] Commented: (HARMONY-3718) [drlvm][jit] -server mode failed for GCv5 helper inlining
Date Mon, 23 Apr 2007 12:26:50 GMT
Hi, Mikhail, good observation. And I agree that it's not a blocker at
the moment. Thanks, xiaofeng

On 4/23/07, Mikhail Fursov (JIRA) <jira@apache.org> wrote:
>
>     [ https://issues.apache.org/jira/browse/HARMONY-3718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12490916
]
>
> Mikhail Fursov commented on HARMONY-3718:
> -----------------------------------------
>
> While working on this problem I've found that vmmagic support in Jitrino.OPT has potential
flow that can cause GC_GEN failing when compressed mode is enabled on EM64T platform.
>
> Jitrino.OPT treats all field stores for Java objects as stores 4-byte values in compressed
mode, but fields with Address type are not 'objects' but 8-bytes raw pointers.
> I'll create another JIRA to demonstrate this problem.
>
> + I propose closing this JIRA without fix applied. It's not a blocker after HARMONY-3721
is committed and I'm going to rewrite this patch with stricter check as part of the solution
for the problem described above.
>
>
> > [drlvm][jit] -server mode failed for GCv5 helper inlining
> > ---------------------------------------------------------
> >
> >                 Key: HARMONY-3718
> >                 URL: https://issues.apache.org/jira/browse/HARMONY-3718
> >             Project: Harmony
> >          Issue Type: Bug
> >          Components: DRLVM
> >         Environment: Linux IA32
> >            Reporter: Yu-Nan He
> >         Attachments: check.diff, server.emconf
> >
> >
> > DRLVM fails on Linux IA32 in -server mode with allocation inline parameters for
GCv5. The server.emconf is modified and I replaced all "gc_cc" in server.emconf with "gc_gen".
 Jitrino fails with below stack trace when I run any application.
> > /***********stack trace********************/
> > java: /home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:108:
void Jitrino::Ia32::checkManaged2UnmanagedConv(Jitrino::Ia32::IRManager&, Jitrino::Ia32::Opnd*):
Assertion `managedOpnd->isPlacedIn(OpndKind_Immediate)' failed.
> > SIGABRT in VM code.
> > Stack trace:
> >   0: ?? (??:-1)
> >   1: ?? (??:-1)
> >   2: ?? (??:-1)
> >   3: Jitrino::Ia32::checkManaged2UnmanagedConv(Jitrino::Ia32::IRManager&, Jitrino::Ia32::Opnd*)
(/home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:94)
> >   4: Jitrino::Ia32::GCMap::registerGCSafePoint(Jitrino::Ia32::IRManager&, Jitrino::BitSet
const&, Jitrino::Ia32::Inst*) (/home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:141)
> >   5: Jitrino::Ia32::GCMap::processBasicBlock(Jitrino::Ia32::IRManager&, Jitrino::Node
const*) (/home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:70)
> >   6: Jitrino::Ia32::GCMap::registerInsts(Jitrino::Ia32::IRManager&) (/home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:51)
> >   7: Jitrino::Ia32::GCMapCreator::runImpl() (/home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:472)
> >   8: Jitrino::Ia32::SessionAction::run() (/home/yhe19/harmony/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32IRManager.cpp:2271)
> >   9: Jitrino::runPipeline(Jitrino::CompilationContext*) (/home/yhe19/harmony/working_vm/vm/jitrino/src/main/Jitrino.cpp:228)
> >  10: Jitrino::compileMethod(Jitrino::CompilationContext*) (/home/yhe19/harmony/working_vm/vm/jitrino/src/main/Jitrino.cpp:265)
> >  11: Jitrino::Jitrino::CompileMethod(Jitrino::CompilationContext*) (/home/yhe19/harmony/working_vm/vm/jitrino/src/main/Jitrino.cpp:287)
> >  12: JIT_compile_method_with_params (/home/yhe19/harmony/working_vm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:279)
> >  13: Dll_JIT::compile_method_with_params(void*, Method*, OpenMethodExecutionParams)
(/home/yhe19/harmony/working_vm/vm/vmcore/include/dll_jit_intf.h:86)
> >  14: compile_do_compilation_jit(Method*, JIT*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/jit/compile.cpp:657)
> >  15: vm_compile_method (/home/yhe19/harmony/working_vm/vm/vmcore/src/class_support/C_Interface.cpp:2493)
> >  16: DrlEMImpl::compileMethod(Method*) (/home/yhe19/harmony/working_vm/vm/em/src/DrlEMImpl.cpp:540)
> >  17: CompileMethod (/home/yhe19/harmony/working_vm/vm/em/src/em_intf.cpp:50)
> >  18: compile_do_compilation (/home/yhe19/harmony/working_vm/vm/vmcore/src/jit/compile.cpp:770)
> >  19: compile_me(Method*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/jit/compile.cpp:790)
> >  20: 0x00545162  <Generated stub>
> >  21: vm_invoke_native_array_stub (/home/yhe19/harmony/working_vm/vm/vmcore/src/util/ia32/base/invoke_native_stub_ia32.asm:41)
> >  22: JIT_execute_method_default(void*, _jmethodID*, jvalue*, jvalue*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/util/ia32/base/ini_iA32.cpp:200)
> >  23: DrlEMImpl::executeMethod(_jmethodID*, jvalue*, jvalue*) (/home/yhe19/harmony/working_vm/vm/em/src/DrlEMImpl.cpp:510)
> >  24: ExecuteMethod (/home/yhe19/harmony/working_vm/vm/em/src/em_intf.cpp:44)
> >  25: vm_execute_java_method_array(_jmethodID*, jvalue*, jvalue*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/jit/ini.cpp:56)
> >  26: Class::initialize() (/home/yhe19/harmony/working_vm/vm/vmcore/src/class_support/Initialize.cpp:141)
> >  27: class_initialize_from_jni(Class*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/class_support/Initialize.cpp:214)
> >  28: Java_java_lang_VMClassRegistry_initializeClass (/home/yhe19/harmony/working_vm/vm/vmcore/src/kernel_classes/native/java_lang_VMClassRegistry.cpp:407)
> >  29: 0x00928EB6  <Generated stub>
> >  30: ?? (??:-1)
> >  31: java/lang/Class.forName(Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class;
(Class.java:178)
> >  32: java/lang/Class.forName(Ljava/lang/String;)Ljava/lang/Class; (Class.java:128)
> >  33: java/lang/VMStart.parseSystemProperties()V (VMStart.java:65)
> >  34: vm_invoke_native_array_stub (/home/yhe19/harmony/working_vm/vm/vmcore/src/util/ia32/base/invoke_native_stub_ia32.asm:41)
> >  35: JIT_execute_method_default(void*, _jmethodID*, jvalue*, jvalue*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/util/ia32/base/ini_iA32.cpp:200)
> >  36: DrlEMImpl::executeMethod(_jmethodID*, jvalue*, jvalue*) (/home/yhe19/harmony/working_vm/vm/em/src/DrlEMImpl.cpp:510)
> >  37: ExecuteMethod (/home/yhe19/harmony/working_vm/vm/em/src/em_intf.cpp:44)
> >  38: vm_execute_java_method_array(_jmethodID*, jvalue*, jvalue*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/jit/ini.cpp:56)
> >  39: call_static_method_no_ref_result (/home/yhe19/harmony/working_vm/vm/vmcore/src/jni/jni_method.cpp:1155)
> >  40: CallStaticVoidMethodA(JNIEnv_External*, _jobject*, _jmethodID*, jvalue*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/jni/jni_method.cpp:1563)
> >  41: CallStaticVoidMethodV(JNIEnv_External*, _jobject*, _jmethodID*, char*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/jni/jni_method.cpp:1547)
> >  42: JNIEnv_External::CallStaticVoidMethod(_jobject*, _jmethodID*, ...) (/home/yhe19/harmony/working_vm/vm/include/jni.h:1348)
> >  43: run_java_init (/home/yhe19/harmony/working_vm/vm/vmcore/src/init/vm_init.cpp:483)
> >  44: vm_init2(JNIEnv_External*) (/home/yhe19/harmony/working_vm/vm/vmcore/src/init/vm_init.cpp:860)
> >  45: JNI_CreateJavaVM (/home/yhe19/harmony/working_vm/vm/vmcore/src/jni/jni.cpp:529)
> >  46: invocation (../shared/main.c:658)
> >  47: gpProtectedMain (../shared/main.c:379)
> >  48: main (../shared/cmain.c:147)
> >  49: ?? (??:-1)
> >  50: _start (??:-1)
> >  51: java/lang/VMStart.initialize()V (VMStart.java:47)
> > <end of stack trace>
> > Aborted
>
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http://xiao-feng.blogspot.com

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