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From "Geir Magnusson Jr." <g...@pobox.com>
Subject Re: Fwd: [jira] Created: (HARMONY-2805) VM segfault
Date Tue, 19 Dec 2006 22:21:40 GMT


Naveen Neelakantam wrote:
> I am currently working to finish Egor Pasko's re-implementation of ABCD, 
> and as a result I like to build vm.jitrino in debug mode (so that I can 
> use asserts).  However, building vm.jitrino in debug mode breaks DRLVM.  
> I've created 2 JIRAs that reflect this HARMONY-2805 and HARMONY-2804.
> 
> This raises a question in my mind.  Is anyone testing DRLVM built fully 
> in debug mode?  The default Cruise Control setup does not do this and I 
> find that troubling.

I usually build and work with it in debug mode...

geir

> 
> Naveen
> 
> Begin forwarded message:
> 
>> From: "Naveen Neelakantam (JIRA)" <jira@apache.org>
>> Date: December 19, 2006 12:58:20 PM CST
>> To: neelakan@uiuc.edu
>> Subject: [jira] Created: (HARMONY-2805) VM segfault
>>
>> VM segfault
>> -----------
>>
>>                  Key: HARMONY-2805
>>                  URL: http://issues.apache.org/jira/browse/HARMONY-2805
>>              Project: Harmony
>>           Issue Type: Bug
>>           Components: DRLVM
>>          Environment: RHEL 4 update 4, gcc 3.4.6, core2 (i386)
>>             Reporter: Naveen Neelakantam
>>             Priority: Blocker
>>
>>
>> If I build vm.jitrino in debug mode, the VM segfaults on any Java app 
>> that runs for a non-trivial amount of time.
>>
>> The bug also manifests iteself if you type:
>>> java -Xem:server_static -showversion
>> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software 
>> Foundation or its licensors, as applicable.
>> java version "1.5.0"
>> pre-alpha : not complete or compatible
>> svn = r488351, (Dec 18 2006), Linux/ia32/gcc 3.4.6, debug build
>> http://incubator.apache.org/harmony
>> SIGSEGV in VM code.
>> Stack trace:
>>         1: Jitrino::Ia32::GCSafePoint::isHardwareExceptionPoint() 
>> const 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.h:102)

>>
>>         2: 
>> Jitrino::Ia32::hwecompare::operator()(Jitrino::Ia32::GCSafePoint 
>> const*, Jitrino::Ia32::GCSafePoint const*) const 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:221)

>>
>>         3: ?? (00313f5d
>> :313)
>>         4: ?? (00313931
>> :313931)
>>         5: ?? (00312d8a
>> :312)
>>         6: ?? (003115d0
>> :3115)
>>         7: Jitrino::Ia32::GCMap::write(unsigned char*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:239)

>>
>>         8: Jitrino::Ia32::InfoBlockWriter::runImpl() 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32GCMap.cpp:528)

>>
>>         9: Jitrino::Ia32::SessionAction::run() 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/codegenerator/ia32/Ia32IRManager.cpp:2155)

>>
>>         10: Jitrino::runPipeline(Jitrino::CompilationContext*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:226)

>>
>>         11: Jitrino::compileMethod(Jitrino::CompilationContext*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:261)

>>
>>         12: 
>> Jitrino::Jitrino::CompileMethod(Jitrino::CompilationContext*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:286)

>>
>>         13: JIT_compile_method_with_params 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:278)

>>
>>         14: Dll_JIT::compile_method_with_params(void*, Method*, 
>> OpenMethodExecutionParams) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/include/dll_jit_intf.h:86)

>>
>>         15: compile_do_compilation_jit(Method*, JIT*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/jit/compile.cpp:709)

>>
>>         16: vm_compile_method 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/class_support/C_Interface.cpp:2454)

>>
>>         17: DrlEMImpl::compileMethod(Method*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/em/src/DrlEMImpl.cpp:545)

>>
>>         18: CompileMethod 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/em/src/em_intf.cpp:49)

>>
>>         19: compile_do_compilation 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/jit/compile.cpp:789)

>>
>>         20: compile_jit_a_method(Method*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/jit/compile.cpp:840)

>>
>>         21: IP is 0xB6974162 <native code>
>>         22: vm_invoke_native_array_stub 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/util/ia32/base/invoke_native_stub_ia32.asm:41)

>>
>>         23: JIT_execute_method_default(void*, _jmethodID*, jvalue*, 
>> jvalue*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/util/ia32/base/ini_iA32.cpp:199)

>>
>>         24: DrlEMImpl::executeMethod(_jmethodID*, jvalue*, jvalue*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/em/src/DrlEMImpl.cpp:514)

>>
>>         25: ExecuteMethod 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/em/src/em_intf.cpp:43)

>>
>>         26: vm_execute_java_method_array(_jmethodID*, jvalue*, 
>> jvalue*) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/jit/ini.cpp:51)

>>
>>         27: vm_create_jthread 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/init/vm_init.cpp:549)

>>
>>         28: vm_attach_internal(JNIEnv_External**, _jobject**, 
>> JavaVM_External*, _jobject*, char*, unsigned char) 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/init/vm_init.cpp:588)

>>
>>         29: JNI_CreateJavaVM 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_vm/vm/vmcore/src/jni/jni.cpp:499)

>>
>>         30: ?? (??:-1)
>>         31: ?? (??:-1)
>>         32: ?? (??:-1)
>>         33: hysig_protect 
>> (/home/dcsfiles/neelakan/Sandbox/Harmony/trunk/working_classlib/modules/portlib/src/main/native/port/unix/hysignal.c:283)

>>
>>         34: ?? (??:-1)
>>         35: ?? (??:-1)
>>         36: ?? (??:-1)
>> <end of stack trace>
>> Segmentation fault
>>
>>
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>>
> 
> 

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