#0  0xb7f02410 in __kernel_vsyscall ()
#1  0xb7435c55 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0xb7437461 in *__GI_abort () at abort.c:88
#3  0xb746d74c in __libc_message (do_abort=2, fmt=0xb75234a8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#4  0xb74733a6 in malloc_printerr (action=2, str=0xb75234f4 "free(): invalid next size (fast)", ptr=<value optimized out>) at malloc.c:5891
#5  0xb7475029 in *__GI___libc_free (mem=0x80bbd08) at malloc.c:3626
#6  0xb7576841 in IA__g_free (mem=0x80bbd08) at gmem.c:187
#7  0xb651471e in set_xinput_mouse_values (right_handed=1) at mouse_plugin.c:235
#8  0xb65148bd in set_mouse_values (right_handed=1, accel=2, threshold=4) at mouse_plugin.c:256
#9  0xb6514e19 in mcs_plugin_init (mcs_plugin=0x8085f80) at mouse_plugin.c:1050
#10 0x0804adba in main (argc=134697888, argv=Cannot access memory at address 0x4d03) at xfce-mcs-manager.c:134