GNU gdb 6.6-debian
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This GDB was configured as "i486-linux-gnu"...
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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(gdb) handle SIG33 pass nostop noprint
Signal        Stop	Print	Pass to program	Description
SIG33         No	No	Yes		Real-time event 33
(gdb) set pagination 0
(gdb) run
Starting program: /usr/bin/filezilla 
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[Thread debugging using libthread_db enabled]
[New Thread -1227286832 (LWP 7318)]
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[New Thread -1232827504 (LWP 7422)]
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[Thread -1232827504 (LWP 7422) exited]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1227286832 (LWP 7318)]
0x080d8afb in ?? ()
(gdb) backtrace
#0  0x080d8afb in ?? ()
#1  0x080dd3a1 in ?? ()
#2  0xb78f2885 in wxAppConsole::HandleEvent () from /usr/lib/libwx_baseu-2.6.so.0
#3  0xb7981e32 in wxEvtHandler::ProcessEventIfMatches () from /usr/lib/libwx_baseu-2.6.so.0
#4  0xb7981f7d in wxEventHashTable::HandleEvent () from /usr/lib/libwx_baseu-2.6.so.0
#5  0xb79820ff in wxEvtHandler::ProcessEvent () from /usr/lib/libwx_baseu-2.6.so.0
#6  0xb79825b0 in wxEvtHandler::ProcessPendingEvents () from /usr/lib/libwx_baseu-2.6.so.0
#7  0xb78f2d5f in wxAppConsole::ProcessPendingEvents () from /usr/lib/libwx_baseu-2.6.so.0
#8  0xb7b10e9c in ?? () from /usr/lib/libwx_gtk2u_core-2.6.so.0
#9  0xb6fabee1 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00000000 in ?? ()
(gdb) info registers
eax            0x0	0
ecx            0xb7d108e0	-1211037472
edx            0x83583c8	137724872
ebx            0x0	0
esp            0xbff923e0	0xbff923e0
ebp            0xbff92418	0xbff92418
esi            0x0	0
edi            0x83583c8	137724872
eip            0x80d8afb	0x80d8afb
eflags         0x10246	[ PF ZF IF RF ]
cs             0x73	115
ss             0x7b	123
ds             0x7b	123
es             0x7b	123
fs             0x0	0
gs             0x33	51
(gdb) thread apply all backtrace

Thread 1 (Thread -1227286832 (LWP 7318)):
#0  0x080d8afb in ?? ()
#1  0x080dd3a1 in ?? ()
#2  0xb78f2885 in wxAppConsole::HandleEvent () from /usr/lib/libwx_baseu-2.6.so.0
#3  0xb7981e32 in wxEvtHandler::ProcessEventIfMatches () from /usr/lib/libwx_baseu-2.6.so.0
#4  0xb7981f7d in wxEventHashTable::HandleEvent () from /usr/lib/libwx_baseu-2.6.so.0
#5  0xb79820ff in wxEvtHandler::ProcessEvent () from /usr/lib/libwx_baseu-2.6.so.0
#6  0xb79825b0 in wxEvtHandler::ProcessPendingEvents () from /usr/lib/libwx_baseu-2.6.so.0
#7  0xb78f2d5f in wxAppConsole::ProcessPendingEvents () from /usr/lib/libwx_baseu-2.6.so.0
#8  0xb7b10e9c in ?? () from /usr/lib/libwx_gtk2u_core-2.6.so.0
#9  0xb6fabee1 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00000000 in ?? ()
(gdb) quit
The program is running.  Exit anyway? (y or n)