[Webkit-unassigned] [Bug 25033] New: dtoa.cpp segfaults with g++ 4.4.0

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=25033

           Summary: dtoa.cpp segfaults with g++ 4.4.0
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: xan.lopez at gmail.com


Compiling WebKit with g++ 4.4.0 20090330 and -O2 (this is a pre-release from
Fedora 11, but 4.4.0 is about to be released), I get this segfault pretty much
in any page:

Program received signal SIGSEGV, Segmentation fault.
0x00d12161 in WTF::dtoa () from
/home/xan/git/WebKit/build/normal/.libs/libwebkit-1.0.so.2.2.0
(gdb) bt
#0  0x00d12161 in WTF::dtoa () from
/home/xan/git/WebKit/build/normal/.libs/libwebkit-1.0.so.2.2.0
#1  0x00d131b8 in JSC::concatenate () from
/home/xan/git/WebKit/build/normal/.libs/libwebkit-1.0.so.2.2.0
#2  0x00d959c6 in JSC::JITStubs::cti_op_add () from
/home/xan/git/WebKit/build/normal/.libs/libwebkit-1.0.so.2.2.0
#3  0x07c5af47 in ?? ()
#4  0x00000000 in ?? ()

It does not happen in debug builds, so I'm not sure how to get anything more
useful than that. Googling a bit, it might be related to this:
http://patrakov.blogspot.com/2009/03/dont-use-old-dtoac.html , but we seem to
use a modified version of that.

Any suggestion to further track this down is welcome :)


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