[Webkit-unassigned] [Bug 43910] The scratch register should be saved in YARR with ARM JIT

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=43910





--- Comment #2 from Jocelyn Turcotte <jocelyn.turcotte at nokia.com>  2010-08-12 06:12:09 PST ---
A bit of context for future reference:
This was causing a crash of QtWebKit on the N900 in release at the following stack trace:


Program received signal SIGSEGV, Segmentation fault.
JSC::RegExp::match (this=0x448ce300, s=..., startOffset=0, ovector=0x44935e58) at ../../webkit/JavaScriptCore/wtf/RefPtr.h:60
60            T* get() const { return m_ptr; }
(gdb) bt
#0  JSC::RegExp::match (this=0x448ce300, s=..., startOffset=0, ovector=0x44935e58) at ../../webkit/JavaScriptCore/wtf/RefPtr.h:60
#1  0x412eaa70 in JSC::RegExpObject::match (this=0x44e02900, exec=0x460080c4) at ../../webkit/JavaScriptCore/runtime/RegExpConstructor.h:114
#2  0x412eae94 in JSC::RegExpObject::exec (this=0x28, exec=0x34) at ../../webkit/JavaScriptCore/runtime/RegExpObject.cpp:124
#3  0x412eb818 in regExpProtoFuncExec (exec=0x460080c4) at ../../webkit/JavaScriptCore/runtime/RegExpPrototype.cpp:75
#4  0x43fec34c in ?? ()
#5  0x43fec34c in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

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