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Posted to commits@harmony.apache.org by "Pavel Pervov (JIRA)" <ji...@apache.org> on 2007/04/06 14:24:32 UTC
[jira] Commented: (HARMONY-3547) [drlvm] segfault on classloading
due to use of alloca blowing the stack
[ https://issues.apache.org/jira/browse/HARMONY-3547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12487228 ]
Pavel Pervov commented on HARMONY-3547:
---------------------------------------
I would suggest only changing decompression and uncompressed content to be changed to mallocs.
Parsing JAR files only occurs once at VM startup, so SOE won't happen there.
Also, memory leak for lv_table is still present. Thanks for finding this anyway.
> [drlvm] segfault on classloading due to use of alloca blowing the stack
> ------------------------------------------------------------------------
>
> Key: HARMONY-3547
> URL: https://issues.apache.org/jira/browse/HARMONY-3547
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: linux, x86_64 both "latest" of Apr 1 and svn head built here.
> Reporter: Santiago Gala
> Assigned To: Gregory Shimansky
> Attachments: harmony-alloca-stack-overflow.patch
>
>
> Running eclipse-3.2, all goes well, until it tries to index the documentation. Then I get, after a while, the following dump:
> SIGSEGV in VM code.
> Stack trace:
> 0: BootstrapClassLoader::LoadFromJarFile(JarFile*, char const*, String const*, bool*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1833)
> 1: BootstrapClassLoader::LoadFromFile(String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1743)
> 2: BootstrapClassLoader::DoLoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1535)
> 3: ClassLoader::LoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1490)
> 4: ClassLoader::LoadVerifyAndPrepareClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:359)
> 5: Class::load_ancestors(Global_Env*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/Class.cpp:273)
> 6: ClassLoader::DefineClass(Global_Env*, char const*, unsigned char*, unsigned int, unsigned int, String const**) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:309)
> 7: BootstrapClassLoader::LoadFromJarFile(JarFile*, char const*, String const*, bool*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1843)
> 8: BootstrapClassLoader::LoadFromFile(String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1743)
> 9: BootstrapClassLoader::DoLoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1535)
> 10: ClassLoader::LoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1490)
> 11: ClassLoader::LoadVerifyAndPrepareClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:359)
> 12: Class::load_ancestors(Global_Env*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/Class.cpp:273)
> 13: ClassLoader::DefineClass(Global_Env*, char const*, unsigned char*, unsigned int, unsigned int, String const**) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:309)
> 14: BootstrapClassLoader::LoadFromJarFile(JarFile*, char const*, String const*, bool*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1843)
> 15: BootstrapClassLoader::LoadFromFile(String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1743)
> 16: BootstrapClassLoader::DoLoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1535)
> 17: ClassLoader::LoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1490)
> 18: ClassLoader::LoadVerifyAndPrepareClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:359)
> 19: Class::load_ancestors(Global_Env*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/Class.cpp:273)
> 20: ClassLoader::DefineClass(Global_Env*, char const*, unsigned char*, unsigned int, unsigned int, String const**) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:309)
> 21: BootstrapClassLoader::LoadFromJarFile(JarFile*, char const*, String const*, bool*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1843)
> 22: BootstrapClassLoader::LoadFromFile(String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1743)
> 23: BootstrapClassLoader::DoLoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1535)
> 24: ClassLoader::LoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1490)
> 25: ClassLoader::LoadVerifyAndPrepareClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:359)
> 26: Class::load_ancestors(Global_Env*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/Class.cpp:273)
> 27: ClassLoader::DefineClass(Global_Env*, char const*, unsigned char*, unsigned int, unsigned int, String const**) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:309)
> 28: BootstrapClassLoader::LoadFromJarFile(JarFile*, char const*, String const*, bool*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1843)
> 29: BootstrapClassLoader::LoadFromFile(String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1743)
> 30: BootstrapClassLoader::DoLoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1535)
> 31: ClassLoader::LoadClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:1490)
> 32: ClassLoader::LoadVerifyAndPrepareClass(Global_Env*, String const*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/classloader.cpp:359)
> 33: Class::_resolve_class(Global_Env*, unsigned int) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/Resolve.cpp:167)
> 34: resolve_class (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/Resolve.cpp:914)
> 35: Jitrino::Jet::Compiler::handle_ik_obj(Jitrino::Jet::JInst const&) (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/jet/bcproc.cpp:581)
> 36: Jitrino::Jet::Compiler::handle_inst() (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/jet/bcproc.cpp:71)
> 37: Jitrino::Jet::Compiler::comp_gen_insts(unsigned int, unsigned int, unsigned int) (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/jet/compiler.cpp:1026)
> 38: Jitrino::Jet::Compiler::comp_gen_code_bb(unsigned int) (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/jet/compiler.cpp:818)
> 39: Jitrino::Jet::Compiler::compile(void*, Method*, OpenMethodExecutionParams const&) (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/jet/compiler.cpp:393)
> 40: Jitrino::Jet::compile_with_params(void*, void*, Method*, OpenMethodExecutionParams) (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/jet/jet.cpp:523)
> 41: JIT_compile_method_with_params (/home/sgala/newcode/harmony/working_vm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:274)
> 42: Dll_JIT::compile_method_with_params(void*, Method*, OpenMethodExecutionParams) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/include/dll_jit_intf.h:86)
> 43: compile_do_compilation_jit(Method*, JIT*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/jit/compile.cpp:657)
> 44: vm_compile_method (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/class_support/C_Interface.cpp:2487)
> 45: DrlEMImpl::compileMethod(Method*) (/home/sgala/newcode/harmony/working_vm/vm/em/src/DrlEMImpl.cpp:570)
> 46: CompileMethod (/home/sgala/newcode/harmony/working_vm/vm/em/src/em_intf.cpp:50)
> 47: compile_do_compilation (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/jit/compile.cpp:770)
> 48: compile_me(Method*) (/home/sgala/newcode/harmony/working_vm/vm/vmcore/src/jit/compile.cpp:790)
> 49: ?? (??:-1)
> 50: org/apache/xalan/xsltc/trax/TransformerImpl.transform(Ljavax/xml/transform/Source;Lorg/apache/xml/serializer/SerializationHandler;Ljava/lang/String;)V (TransformerImpl.java:628)
> 51: org/apache/xalan/xsltc/trax/TransformerImpl.transform(Ljavax/xml/transform/Source;Ljavax/xml/transform/Result;)V (TransformerImpl.java:301)
> 52: org/eclipse/help/internal/xhtml/UATransformManager.convertToString(Lorg/w3c/dom/Document;)Ljava/lang/String; (UATransformManager.java:75)
> 53: org/eclipse/help/internal/xhtml/UATransformManager.getAsInputStream(Lorg/w3c/dom/Document;)Ljava/io/InputStream; (UATransformManager.java:91)
> 54: org/eclipse/help/internal/DynamicContentProducer.openXHTMLFromPlugin(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Z)Ljava/io/InputStream; (DynamicContentProducer.java:124)
> 55: org/eclipse/help/internal/DynamicContentProducer.getInputStream(Ljava/lang/String;Ljava/lang/String;Ljava/util/Locale;)Ljava/io/InputStream; (DynamicContentProducer.java:53)
> 56: org/eclipse/help/internal/util/ResourceLocator.openFromProducer(Lorg/osgi/framework/Bundle;Ljava/lang/String;Ljava/lang/String;)Ljava/io/InputStream; (ResourceLocator.java:227)
> 57: org/eclipse/help/internal/protocols/HelpURLConnection.getInputStream()Ljava/io/InputStream; (HelpURLConnection.java:113)
> 58: java/net/URL.openStream()Ljava/io/InputStream; (URL.java:664)
> 59: org/eclipse/help/internal/search/HTMLDocParser.openDocument(Ljava/net/URL;)V (HTMLDocParser.java:62)
> 60: org/eclipse/help/internal/search/HTMLSearchParticipant.addDocument(Lorg/eclipse/help/search/ISearchIndex;Ljava/lang/String;Ljava/lang/String;Ljava/net/URL;Ljava/lang/String;Lorg/apache/lucene/document/Document;)Lorg/eclipse/core/runtime/IStatus; (HTMLSearchParticipant.java:53)
> 61: org/eclipse/help/internal/search/SearchIndex.addDocument(Ljava/lang/String;Ljava/net/URL;)Lorg/eclipse/core/runtime/IStatus; (SearchIndex.java:215)
> 62: org/eclipse/help/internal/search/IndexingOperation.addDocuments(Lorg/eclipse/core/runtime/IProgressMonitor;Ljava/util/Collection;Z)V (IndexingOperation.java:279)
> 63: org/eclipse/help/internal/search/IndexingOperation.addNewDocuments(Lorg/eclipse/core/runtime/IProgressMonitor;Ljava/util/Collection;Z)Ljava/util/Map; (IndexingOperation.java:175)
> 64: org/eclipse/help/internal/search/IndexingOperation.execute(Lorg/eclipse/core/runtime/IProgressMonitor;)V (IndexingOperation.java:105)
> 65: org/eclipse/help/internal/search/SearchManager.updateIndex(Lorg/eclipse/core/runtime/IProgressMonitor;Lorg/eclipse/help/internal/search/SearchIndex;Lorg/eclipse/help/internal/search/ProgressDistributor;)V (SearchManager.java:883)
> 66: org/eclipse/help/internal/search/SearchManager.ensureIndexUpdated(Lorg/eclipse/core/runtime/IProgressMonitor;Lorg/eclipse/help/internal/search/SearchIndexWithIndexingProgress;)V (SearchManager.java:847)
> 67: org/eclipse/help/internal/search/federated/IndexerJob.run(Lorg/eclipse/core/runtime/IProgressMonitor;)Lorg/eclipse/core/runtime/IStatus; (IndexerJob.java:27)
> 68: org/eclipse/core/internal/jobs/Worker.run()V (Worker.java:58)
> 69: java/lang/Thread.runImpl()V (Thread.java:672)
> <end of stack trace>
> As seen in slot 50, xsltc is generating code for a XSL transformation, and giving it to the interpreter. The crash happens after Jitrino tries to load a class in the bootstrap loader.
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