Bug 238413

I started up opera fresh after having previously configured it in minor ways, e.g. to set https://www.google.cocm/ to the home page.

This time, right after starting it up, I selected the "Print" option from the
main Opera control menu.  Before I could even select which specific printer to print to, Opera crashed with a SIGBUS error.

I subsequently ran gdb on the resulting opera.core file and obtained the following stack trace, which I hope may be helpful to whoever ends up trying to fix this serious bug:

==============================================================================
% gdb /usr/local/lib/opera/opera opera.core
GNU gdb (GDB) 8.2.1 [GDB v8.2.1 for FreeBSD]
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Reading symbols from /usr/local/lib/opera/opera...(no debugging symbols found)...done.
[New LWP 100206]
[New LWP 100199]
[New LWP 100201]
[New LWP 100202]
[New LWP 100204]
[New LWP 100205]
[New LWP 100209]
[New LWP 100210]
Core was generated by `/usr/local/lib/opera/opera'.
Program terminated with signal SIGBUS, Bus error.
#0  0x0000000804a7e9e8 in vtable for __cxxabiv1::__si_class_type_info ()
   from /lib/libcxxrt.so.1
[Current thread is 1 (LWP 100206)]
(gdb) where
#0  0x0000000804a7e9e8 in vtable for __cxxabiv1::__si_class_type_info ()
    at /lib/libcxxrt.so.1
#1  0x000000080202ef21 in __dynamic_cast ()
    at /usr/local/lib/opera/libstdc++.so.6
#2  0x0000000808721cfa in std::__1::vector<libproxy::config_extension*, std::__1::allocator<libproxy::config_extension*> > libmodman::module_manager::get_extensions<libproxy::config_extension>() const ()
    at /usr/local/lib/libproxy.so.1
#3  0x000000080871e08f in  () at /usr/local/lib/libproxy.so.1
#4  0x000000080871d8dd in  () at /usr/local/lib/libproxy.so.1
#5  0x0000000808720a95 in px_proxy_factory_get_proxies ()
    at /usr/local/lib/libproxy.so.1
#6  0x0000000806b4b47b in  ()
    at /usr/local/lib/gio/modules/libgiolibproxy.so
#7  0x000000080404f26a in  () at /usr/local/lib/libgio-2.0.so.0
#8  0x00000008043b4513 in  () at /usr/local/lib/libglib-2.0.so.0
#9  0x00000008043b35fa in  () at /usr/local/lib/libglib-2.0.so.0
#10 0x0000000801f32776 in  () at /lib/libthr.so.3
#11 0x0000000000000000 in  ()
==============================================================================