Bug#569590: seed: FTBFS on alpha: segfault

[Josselin Mouette]

Le dimanche 08 août 2010 à 22:13 +1200, Michael Cree a écrit :
> A backtrace for this bug follows:
> 
> #0  WebCore::Settings::fontRenderingMode (this=0x0)
>      at ../WebCore/page/Settings.cpp:444
> No locals.
> #1  0x00000200010901f0 in 
> WTF::VectorBufferBase<JSC::GetByIdExceptionInfo>::deallocateBuffer 
> (this=0x20004ba0dc0, __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/wtf/Vector.h:309
> No locals.
> #2  ~VectorBuffer (this=0x20004ba0dc0, __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/wtf/Vector.h:366
> No locals.
> #3  ~Vector (this=0x20004ba0dc0, __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/wtf/Vector.h:516
> No locals.
> #4  ~ExceptionInfo (this=0x20004ba0dc0, __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/bytecode/CodeBlock.h:260
> No locals.
> #5  deleteOwnedPtr<JSC::ExceptionInfo> (this=0x20004ba0dc0,
>      __in_chrg=<value optimized out>) at 
> ../JavaScriptCore/wtf/OwnPtrCommon.h:55
> No locals.
> #6  ~OwnPtr (this=0x20004ba0dc0, __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/wtf/OwnPtr.h:52
> No locals.
> #7  ~CodeBlock (this=0x20004ba0dc0, __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/bytecode/CodeBlock.cpp:1379
> No locals.
> #8  0x00000200010c0800 in JSC::ProgramCodeBlock::~ProgramCodeBlock() ()
>     from /usr/lib/libwebkit-1.0.so.2
> No symbol table info available.
> #9  0x00000200010bd978 in ~ProgramExecutable (this=0x20004b76400,
>      __in_chrg=<value optimized out>)
>      at ../JavaScriptCore/runtime/Executable.cpp:55
> No locals.
> #10 0x000002000114d95c in WTF::RefCounted<JSC::ExecutableBase>::deref (
>      exec=0x20004b74c88, scopeChain=..., source=..., thisValue=...)
>      at ../JavaScriptCore/wtf/RefCounted.h:109
> No locals.
> #11 derefIfNotNull<JSC::ProgramExecutable> (exec=0x20004b74c88,
>      scopeChain=..., source=..., thisValue=...)
>      at ../JavaScriptCore/wtf/PassRefPtr.h:53
> No locals.
> #12 ~RefPtr (exec=0x20004b74c88, scopeChain=..., source=..., thisValue=...)
>      at ../JavaScriptCore/wtf/RefPtr.h:54
> No locals.
> #13 JSC::evaluate (exec=0x20004b74c88, scopeChain=..., source=...,
>      thisValue=...) at ../JavaScriptCore/runtime/Completion.cpp:69
>          thisObj = <value optimized out>
>          exception = {m_ptr = 0x0}
>          lock = {<WTFNoncopyable::Noncopyable> = {<WTF::FastAllocBase> = 
> {<No data fields>}, <No data fields>}, m_lockBehavior = 
> JSC::SilenceAssertionsOnly}
>          error = 0x11fe4ef18
>          result = <value optimized out>
> #14 0x0000020001071254 in JSEvaluateScript (ctx=<value optimized out>,
>      script=<value optimized out>, thisObject=0x0, sourceURL=0x0,
>      startingLineNumber=<value optimized out>, exception=0x0)
>      at ../JavaScriptCore/API/JSBase.cpp:54
>          entryShim = {<JSC::APIEntryShimWithoutLock> = {
>              m_globalData = 0x20004b70400, m_entryIdentifierTable = 0x0},
>            m_lock = {<WTFNoncopyable::Noncopyable> = 
> {<WTF::FastAllocBase> = {<No data fields>}, <No data fields>},
>              m_lockBehavior = JSC::SilenceAssertionsOnly}}
>          globalObject = 0x20005300000
>          completion = {m_type = JSC::Normal, m_value = {m_ptr = 
> 0x20005300040}}
>          source = {m_provider = {<WTF::FastAllocBase> = {<No data fields>},
>              m_ptr = 0x20004b68140}, m_startChar = 0, m_endChar = 18,
>            m_firstLine = 1}
> #15 0x0000020000043a08 in seed_simple_evaluate (ctx=0x20004b74c88,
>      source=0x2000005a59f "Function.prototype", exception=0x0) at 
> seed-api.c:305
>          ret = 0x0
>          script = 0x20004b72228
> #16 0x000002000004a398 in seed_init_with_context_group (argc=0x11fe4f090,
>      argv=0x11fe4f098, group=0x20004b70400) at seed-engine.c:1404
> No locals.
> #17 0x000002000004a89c in seed_init (argc=0x11fe4f090, argv=0x11fe4f098)
>      at seed-engine.c:1476
> No locals.
> #18 0x000000012000183c in main (argc=3, argv=0x11fe4f1b8) at main.c:152
> No locals.

Looks like an alpha-specific bug in webkit. Maybe the maintainers have
an idea about this crash.

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