[Webkit-unassigned] [Bug 142625] Crash in JSC::Interpreter::execute

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Mar 23 05:14:56 PDT 2015


https://bugs.webkit.org/show_bug.cgi?id=142625

Csaba Osztrogon√°c <ossy at webkit.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mark.lam at apple.com,
                   |                            |ossy at webkit.org

--- Comment #1 from Csaba Osztrogon√°c <ossy at webkit.org> ---
(In reply to comment #0)
...
> The crash happens in line 1119. After a short debugging it seems that at the
> moment of the crash the index of the loop is 0 and the value of
> |numFunctions| is 1. However, since |codeBlock| doesn't contain any
> functionDeclarations at this point, we crash. One more note that could be
> important: the crash happens around the 4096th eval execution.

It's easy to reproduce it on Mac too. The test passes with disabled baseline
JIT (LLINT only), with disabled DFG JIT (LLINT + baseline JIT), so the bug
must be in the DFG JIT engine somewhere.

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