GNU gdb 6.4.90-debian
Copyright (C) 2006 Free Software Foundation, Inc.
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This GDB was configured as "i486-linux-gnu"...(no debugging symbols found)
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/gnome-sound-properties 
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
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(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
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[Thread debugging using libthread_db enabled]
[New Thread -1226111312 (LWP 28607)]
[New Thread -1257440352 (LWP 28631)]
[New Thread -1266226272 (LWP 28634)]
[New Thread -1274618976 (LWP 28635)]
[New Thread -1283011680 (LWP 28636)]
[Thread -1283011680 (LWP 28636) exited]
(gdb) backtrace
(gdb) info registers
eax            (gdb) thread apply lall backtrace
(gdb) quit
The program is running.  Exit anyway? (y or n)