(gdb) backtrace
#0  0x00f2709b in objc_msgSend ()
#1  0x04b261a0 in ?? ()
#2  0x001ce3b0 in -[UITableViewRowData invalidateAllSections] ()
#3  0x00085d23 in -[UITableView(_UITableViewPrivate) _updateRowData] ()
#4  0x0008165c in -[UITableView noteNumberOfRowsChanged] ()
#5  0x0008e708 in -[UITableView reloadData] ()
#6  0x0008b844 in -[UITableView layoutSubviews] ()
#7  0x016aba5a in -[CALayer layoutSublayers] ()
#8  0x016adddc in CALayerLayoutIfNeeded ()
#9  0x016530b4 in CA::Context::commit_transaction ()
#10 0x01654294 in CA::Transaction::commit ()
#11 0x000159c9 in -[UIApplication _reportAppLaunchFinished] ()
#12 0x00015e83 in -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] ()
#13 0x00020617 in -[UIApplication handleEvent:withNewEvent:] ()
#14 0x00018abf in -[UIApplication sendEvent:] ()
#15 0x0001df2e in _UIApplicationHandleEvent ()
#16 0x00ffa992 in PurpleEventCallback ()
#17 0x00da2944 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ ()
#18 0x00d02cf7 in __CFRunLoopDoSource1 ()
#19 0x00cfff83 in __CFRunLoopRun ()
#20 0x00cff840 in CFRunLoopRunSpecific ()
#21 0x00cff761 in CFRunLoopRunInMode ()
#22 0x000157d2 in -[UIApplication _run] ()
#23 0x00021c93 in UIApplicationMain ()
#24 0x00002019 in main (argc=1, argv=0xbffff064) at main.m:14