.
Thread 4 (LWP 3452):
#0  0xb77ba416 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6c26dcb in ?? ()
No symbol table info available.
#2  0xb6ec0000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
.
Thread 3 (LWP 3451):
#0  0xb77ba416 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6d03c33 in ?? ()
No symbol table info available.
#2  0x00000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 3450):
#0  0xb77ba416 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6c26dcb in ?? ()
No symbol table info available.
#2  0xb6ec0000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
.
Thread 1 (LWP 3448):
#0  0x0806173d in ?? ()
No symbol table info available.
#1  0x08088b33 in ?? ()
No symbol table info available.
#2  0xb6680000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)