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From "Pavel Ozhdikhin" <pavel.ozhdik...@gmail.com>
Subject Re: [drlvm][jira] Created: (HARMONY-2956) [jit] segfault with -Xem:server option
Date Thu, 11 Jan 2007 04:25:53 GMT
On 1/10/07, Geir Magnusson Jr. <geir@pobox.com> wrote:
>
> Two things :
>
> 1) shouldn't we start running tests using -Xem:server? :)



+1
Server mode includes JIT optimizations which are not used in default mode.

Thanks,
Pavel


2) Does anyone object to declaring gcc 4.x as our "supported"
> compiler?  What do we lose?  (IOW, what platforms don't have gcc
> 4.x?)  I'll ask this again in a different thread
>
> geir
>
> On Jan 10, 2007, at 7:42 AM, Mikhail Fursov wrote:
>
> > I wrote the code that fail and I hope that this is not GCC 3.4 bug
> > but my
> > missunderstanding. However I do not understand why for a vector of
> > pointers
> > that does not contain NULLs gcc3.4 generates code that passes NULL
> > to a
> > comparator.
> >
> > The only workaround I know: replace std::sort(..) with
> > std::stable_sort(..).
> > I'm going to provide a patch this week.
> >
> >
> >
> > On 10 Jan 2007 15:07:53 +0600, Egor Pasko <egor.pasko@gmail.com>
> > wrote:
> >>
> >> On the 0x25A day of Apache Harmony Pavel Ozhdikhin wrote:
> >> > Naveen,
> >> >
> >> > Using gcc 4.1.0 or newer will likely help in your case. There
> >> was JIRA
> >> issue
> >> > about similar failure:
> >> >
> >> > http://issues.apache.org/jira/browse/HARMONY-1873
> >> >
> >> > The comments reads that earlier gcc version have a bug in std::sort
> >> > implementation. That particular issue was fixed by simplifying the
> >> > comparator expression but the root cause is a bug in gcc.
> >>
> >> I would vote to workaround the possible GCC bug. Finding the right
> >> GCC
> >> bugreport would have been ideal.
> >>
> >> > Thanks,
> >> > Pavel
> >> >
> >> >
> >> > On 1/10/07, Naveen Neelakantam <neelakan@uiuc.edu> wrote:
> >> > >
> >> > > I am seeing a segfault when I use the -Xem:server option.  I
> >> depend
> >> > > on this option working.
> >> > >
> >> > > Thanks,
> >> > > Naveen
> >> > >
> >> > > Begin forwarded message:
> >> > >
> >> > > > From: "Naveen Neelakantam (JIRA)" <jira@apache.org>
> >> > > > Date: January 9, 2007 5:29:27 PM CST
> >> > > > To: neelakan@uiuc.edu
> >> > > > Subject: [jira] Created: (HARMONY-2956) [jit] segfault with -
> >> > > > Xem:server option
> >> > > >
> >> > > > [jit] segfault with -Xem:server option
> >> > > > --------------------------------------
> >> > > >
> >> > > >                  Key: HARMONY-2956
> >> > > >                  URL: https://issues.apache.org/jira/browse/
> >> > > > HARMONY-2956
> >> > > >              Project: Harmony
> >> > > >           Issue Type: Bug
> >> > > >           Components: DRLVM
> >> > > >          Environment: RHEL4 update 4, x86, core2 duo
> >> > > >             Reporter: Naveen Neelakantam
> >> > > >
> >> > > >
> >> > > > The problem seems to occur with any long running program,
> >> but you
> >> > > > can trigger it with the DaCapo benchmarks:
> >> > > >
> >> > > >> java -showversion -Xem:server -jar dacapo-2006-10.jar fop
> >> > > > 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 = r494559, (Jan  9 2007), Linux/ia32/gcc 3.4.6, debug build
> >> > > > http://incubator.apache.org/harmony
> >> > > > SIGSEGV in VM code.
> >> > > > Stack trace:
> >> > > >         1: Jitrino::Ia32::edge_comparator::getEdgeExecCount
> >> > > > (Jitrino::Edge const*) (??:-1)
> >> > > >         2: ?? (00180234
> >> > > > :180234)
> >> > > >         3: ?? (0017f79e
> >> > > > :17)
> >> > > >         4: ?? (0017f7b0
> >> > > > :17)
> >> > > >         5: ?? (0017f7b0
> >> > > > :17)
> >> > > >         6: ?? (0017f7b0
> >> > > > :17)
> >> > > >         7: ?? (0017f6d3
> >> > > > :17)
> >> > > >         8: Jitrino::Ia32::BottomUpLayout::linearizeCfgImpl()
> >> (??:-1)
> >> > > >         9: Jitrino::Ia32::Linearizer::linearizeCfg() (??:-1)
> >> > > >         10: Jitrino::Ia32::Linearizer::doLayout
> >> > > > (Jitrino::Ia32::Linearizer::LinearizerType,
> >> > > > Jitrino::Ia32::IRManager*) (??:-1)
> >> > > >         11: Jitrino::Ia32::Layouter::runImpl() (??:-1)
> >> > > >         12: Jitrino::Ia32::SessionAction::run() (??:-1)
> >> > > >         13: Jitrino::runPipeline(Jitrino::CompilationContext*)
> >> (??:-1)
> >> > > >         14: Jitrino::compileMethod
> >> (Jitrino::CompilationContext*)
> >> > > > (??:-1)
> >> > > >         15: Jitrino::Jitrino::CompileMethod
> >> > > > (Jitrino::CompilationContext*) (??:-1)
> >> > > >         16: JIT_compile_method_with_params (??:-1)
> >> > > >         17: Dll_JIT::compile_method_with_params(void*, Method*,
> >> > > > OpenMethodExecutionParams) (/home/dcsfiles/neelakan/Sandbox/
> >> Harmony/
> >> > > > stable/working_vm/vm/vmcore/include/dll_jit_intf.h:86)
> >> > > >         18: compile_do_compilation_jit(Method*, JIT*) (/home/
> >> > > > dcsfiles/neelakan/Sandbox/Harmony/stable/working_vm/vm/
> >> vmcore/src/
> >> > > > jit/compile.cpp:645)
> >> > > >         19: vm_compile_method (/home/dcsfiles/neelakan/Sandbox/
> >> > > > Harmony/stable/working_vm/vm/vmcore/src/class_support/
> >> > > > C_Interface.cpp:2462)
> >> > > >         20: DrlEMImpl::compileMethod(Method*) (/home/dcsfiles/
> >> > > > neelakan/Sandbox/Harmony/stable/working_vm/vm/em/src/
> >> DrlEMImpl.cpp:
> >> > > > 545)
> >> > > >         21: CompileMethod (/home/dcsfiles/neelakan/Sandbox/
> >> Harmony/
> >> > > > stable/working_vm/vm/em/src/em_intf.cpp:49)
> >> > > >         22: compile_do_compilation (/home/dcsfiles/neelakan/
> >> Sandbox/
> >> > > > Harmony/stable/working_vm/vm/vmcore/src/jit/compile.cpp:752)
> >> > > >         23: compile_me(Method*) (/home/dcsfiles/neelakan/
> >> Sandbox/
> >> > > > Harmony/stable/working_vm/vm/vmcore/src/jit/compile.cpp:772)
> >> > > >         24: IP is 0xB6972162 <native code>
> >> > > >         25: ?? (??:-1)
> >> > > >         26: dacapo/parser/ConfigFileTokenManager.jjStartNfa_0
> >> (IJ)I
> >> > > > (ConfigFileTokenManager.java:-1)
> >> > > >         27: dacapo/parser/
> >> > > > ConfigFileTokenManager.jjMoveStringLiteralDfa2_0(JJ)I
> >> > > > (ConfigFileTokenManager.java:-1)
> >> > > >         28: dacapo/parser/
> >> > > > ConfigFileTokenManager.jjMoveStringLiteralDfa1_0(J)I
> >> > > > (ConfigFileTokenManager.java:-1)
> >> > > >         29: dacapo/parser/
> >> > > > ConfigFileTokenManager.jjMoveStringLiteralDfa0_0()I
> >> > > > (ConfigFileTokenManager.java:-1)
> >> > > >         30: dacapo/parser/ConfigFileTokenManager.getNextToken()
> >> > > > Ldacapo/parser/Token; (ConfigFileTokenManager.java:-1)
> >> > > >         31: dacapo/parser/ConfigFile.jj_consume_token(I)
> >> Ldacapo/
> >> > > > parser/Token; (ConfigFile.java:-1)
> >> > > >         32: dacapo/parser/ConfigFile.config()Ldacapo/parser/
> >> Config;
> >> > > > (ConfigFile.java:-1)
> >> > > >         33: dacapo/parser/ConfigFile.configFile()Ldacapo/
> >> parser/
> >> > > > Config; (ConfigFile.java:-1)
> >> > > >         34: dacapo/parser/Config.parse(Ljava/io/InputStream;)
> >> > > > Ldacapo/parser/Config; (Config.java:-1)
> >> > > >         35: dacapo/TestHarness.<init>(Ljava/io/InputStream;)V
> >> > > > (TestHarness.java:-1)
> >> > > >         36: dacapo/TestHarness.main([Ljava/lang/String;)V
> >> > > > (TestHarness.java:-1)
> >> > > >         37: vm_invoke_native_array_stub (/home/dcsfiles/
> >> neelakan/
> >> > > > Sandbox/Harmony/stable/working_vm/vm/vmcore/src/util/ia32/base/
> >> > > > invoke_native_stub_ia32.asm:41)
> >> > > >         38: JIT_execute_method_default(void*, _jmethodID*,
> >> jvalue*,
> >> > > > jvalue*) (/home/dcsfiles/neelakan/Sandbox/Harmony/stable/
> >> working_vm/
> >> > > > vm/vmcore/src/util/ia32/base/ini_iA32.cpp:199)
> >> > > >         39: DrlEMImpl::executeMethod(_jmethodID*, jvalue*,
> >> jvalue*)
> >> > > > (/home/dcsfiles/neelakan/Sandbox/Harmony/stable/working_vm/
> >> vm/em/
> >> > > > src/DrlEMImpl.cpp:514)
> >> > > >         40: ExecuteMethod (/home/dcsfiles/neelakan/Sandbox/
> >> Harmony/
> >> > > > stable/working_vm/vm/em/src/em_intf.cpp:43)
> >> > > >         41: vm_execute_java_method_array(_jmethodID*, jvalue*,
> >> > > > jvalue*) (/home/dcsfiles/neelakan/Sandbox/Harmony/stable/
> >> working_vm/
> >> > > > vm/vmcore/src/jit/ini.cpp:51)
> >> > > >         42: call_static_method_no_ref_result (/home/dcsfiles/
> >> > > > neelakan/Sandbox/Harmony/stable/working_vm/vm/vmcore/src/jni/
> >> > > > jni_method.cpp:1155)
> >> > > >         43: CallStaticVoidMethodA(JNIEnv_External*, _jobject*,
> >> > > > _jmethodID*, jvalue*) (/home/dcsfiles/neelakan/Sandbox/Harmony/
> >> > > > stable/working_vm/vm/vmcore/src/jni/jni_method.cpp:1563)
> >> > > >         44: invoke_primitive_method (/home/dcsfiles/neelakan/
> >> > > > Sandbox/Harmony/stable/working_vm/vm/vmcore/src/kernel_classes/
> >> > > > native/java_lang_reflect_VMReflection.cpp:184)
> >> > > > Segmentation fault
> >> > > >
> >> > > >
> >> > > > --
> >> > > > This message is automatically generated by JIRA.
> >> > > > -
> >> > > > If you think it was sent incorrectly contact one of the
> >> > > > administrators: https://issues.apache.org/jira/secure/
> >> > > > Administrators.jspa
> >> > > > -
> >> > > > For more information on JIRA, see: http://www.atlassian.com/
> >> > > > software/jira
> >> > > >
> >> > > >
> >> > >
> >> > >
> >> > >
> >>
> >> --
> >> Egor Pasko
> >>
> >>
> >
> >
> > --
> > Mikhail Fursov
>
>

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