(gdb) bt
#0  0x40411548 in raise () from /lib/libc.so.6
#1  0x40412b6c in abort () from /lib/libc.so.6
#2  0x40337018 in IA__g_assertion_message (domain=<value optimized out>, file=0x40508000 "\30\17\22", line=<value optimized out>, func=0x40508bec "",
    message=0x3bc00 "assertion failed: (volume->priv->drive == drive)") at /home/bifh4/fremantle-arm-fremantle1.2.cs2007q3/work/glib2.0-2.20.3/glib/gtestutils.c:1301
#3  0x4033761c in IA__g_assertion_message_expr (domain=0x40508bec "", file=0x1 <Address 0x1 out of bounds>, line=1079020524, func=0x1 <Address 0x1 out of bounds>,
    expr=0x400a73c8 "volume->priv->drive == drive") at /home/bifh4/fremantle-arm-fremantle1.2.cs2007q3/work/glib2.0-2.20.3/glib/gtestutils.c:1312
#4  0x4009427c in gnome_vfs_volume_unset_drive_private (volume=0x40508bec, drive=0x1) at gnome-vfs-volume.c:254
#5  0x0001516c in _gnome_vfs_volume_monitor_disconnected (volume_monitor=0x2fe00, drive=0x388d0) at gnome-vfs-volume-monitor.c:829
#6  0x00017a88 in _hal_add_volume (volume_monitor_daemon=0x2fe00, hal_drive=0x39b20, hal_volume=0x3b908) at gnome-vfs-hal-mounts.c:1044
#7  0x00018d94 in _hal_device_property_modified (hal_ctx=<value optimized out>, udi=0x398c8 "/org/freedesktop/Hal/devices/volume_uuid_130186e3_9585_40a8_954a_dc2ee500b23f",
    key=<value optimized out>, is_removed=<value optimized out>, is_added=0) at gnome-vfs-hal-mounts.c:1519
#8  0x4004f728 in ?? () from /usr/lib/libhal.so.1
#9  0x4004f728 in ?? () from /usr/lib/libhal.so.1