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2.0.1 64 bit version slow, crashing on OS X; 32 bit version working

The 32 bit version of wireshark runs smoothly on my system, the 64 bit version barely runs at all and frequently crashes.

Wireshark: Version 2.0.1 (v2.0.1-0-g59ea380 from master-2.0)

Here are the differences between the 32 and 64 bit builds:

----Compiled (32-bit) with Qt 4.8.6, with libpcap, without POSIX capabilities, with libz 1.2.3, with GLib 2.16.3, with SMI 0.4.8, without c-ares, without ADNS, with Lua 5.2, with GnuTLS 2.12.19, with Gcrypt 1.4.3, with MIT Kerberos, with GeoIP, with QtMultimedia, without AirPcap.

Running on Mac OS X 10.11.2, build 15C50 (Darwin 15.2.0), with locale C, with libpcap version 1.5.3 - Apple version 54, with libz 1.2.5, with GnuTLS 2.12.19, with Gcrypt 1.4.3.

Built using gcc 4.2.1 (Apple Inc. build 5666) (dot 3).

----Compiled (64-bit) with Qt 5.3.2, with libpcap, without POSIX capabilities, with libz 1.2.5, with GLib 2.36.0, with SMI 0.4.8, without c-ares, without ADNS, with Lua 5.2, with GnuTLS 2.12.19, with Gcrypt 1.5.0, with MIT Kerberos, with GeoIP, with QtMultimedia, without AirPcap.

Running on Mac OS X 10.11.2, build 15C50 (Darwin 15.2.0), with locale C, with libpcap version 1.5.3 - Apple version 54, with libz 1.2.5, with GnuTLS 2.12.19, with Gcrypt 1.5.0. Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz (with SSE4.2)

Built using llvm-gcc 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.9.00).

Here is a sample of the crashes: