(gdb) bt
#0  0x0983bbe0 in ?? ()
#1  0xf7f0f047 in ?? () from /usr/lib/libSOGo.so.1
#2  0xf7f1f68e in ?? () from /usr/lib/libSOGo.so.1
#3  0xf6af2114 in -[UIxCalListingActions _fetchFields:forComponentOfType:] (self=0x9ca2530, _cmd=0xf6b1dbc0, fields=0x9fc0410, component=0xf6b1d498)
    at UIxCalListingActions.m:367
#4  0xf6af4f2b in -[UIxCalListingActions eventsBlocksAction] (self=0x9ca2530, _cmd=0x9a4d1e0) at UIxCalListingActions.m:976
#5  0xf75cc53d in ?? () from /usr/lib/libgnustep-base.so.1.16
#6  0xf7b7e58d in -[WODirectAction performActionNamed:] (self=0x9ca2530, _cmd=0xf7cea860, _actionName=0x9fe0990) at WODirectAction.m:101
#7  0xf7c10252 in -[SoActionInvocation callOnObject:withPositionalParametersWhenNotNil:inContext:] (self=0xa6f32f0, _cmd=0xf7cea878, _client=0xa72dff8, 
    _positionalArgs=0x0, _ctx=0x9965f68) at SoActionInvocation.m:300
#8  0xf7c104de in -[SoActionInvocation callOnObject:inContext:] (self=0xa6f32f0, _cmd=0xf7cea808, _client=0xa72dff8, _ctx=0x9965f68) at SoActionInvocation.m:316
#9  0xf7c10103 in -[SoActionInvocation callOnObject:withPositionalParametersWhenNotNil:inContext:] (self=0x9987a48, _cmd=0xf7cea878, _client=0xa72dff8, 
    _positionalArgs=0x0, _ctx=0x9965f68) at SoActionInvocation.m:259
#10 0xf7c104de in -[SoActionInvocation callOnObject:inContext:] (self=0x9987a48, _cmd=0xf7ce8d88, _client=0xa72dff8, _ctx=0x9965f68) at SoActionInvocation.m:316
#11 0xf7c0ab2a in -[SoObjectMethodDispatcher dispatchInContext:] (self=0x9f0f930, _cmd=0xf7ce9598, _ctx=0x9965f68) at SoObjectMethodDispatcher.m:191
#12 0xf7c0d4b2 in -[SoObjectRequestHandler handleRequest:inContext:session:application:] (self=0x9a44e38, _cmd=0xf7c9c4d8, _rq=0x9c84210, _ctx=0x9965f68, 
    _sn=0x0, app=0x99a6de8) at SoObjectRequestHandler.m:591
#13 0xf7b9000f in -[WORequestHandler handleRequest:] (self=0x9a44e38, _cmd=0xf7c7a140, _request=0x9c84210) at WORequestHandler.m:241
#14 0xf7b4ebbd in -[WOCoreApplication dispatchRequest:usingHandler:] (self=0x99a6de8, _cmd=0xf7c7a178, _request=0x9c84210, handler=0x9a44e38)
    at WOCoreApplication.m:704
#15 0xf7b4ee5b in -[WOCoreApplication dispatchRequest:] (self=0x99a6de8, _cmd=0x8051858, _request=0x9c84210) at WOCoreApplication.m:744
#16 0x0804ac1c in -[SOGo dispatchRequest:] (self=0x99a6de8, _cmd=0xf7cd9790, _request=0x9c84210) at SOGo.m:451
#17 0xf7bfae43 in -[WOHttpTransaction _run] (self=0x9d4dfa8, _cmd=0xf7cd97a8) at WOHttpTransaction.m:546
#18 0xf7bfb09a in -[WOHttpTransaction run] (self=0x9d4dfa8, _cmd=0xf7cd8ae8) at WOHttpTransaction.m:599
#19 0xf7bf6b35 in -[WOHttpAdaptor runConnection:] (self=0x9a32a78, _cmd=0xf7cd8b38, _socket=0x9befae8) at WOHttpAdaptor.m:384
#20 0xf7bf6d85 in -[WOHttpAdaptor _handleAcceptedConnection:] (self=0x9a32a78, _cmd=0xf7cd8b40, _connection=0x9befae8) at WOHttpAdaptor.m:418
#21 0xf7bf7223 in -[WOHttpAdaptor _handleConnection:] (self=0x9a32a78, _cmd=0xf7cd8b98, connection=0x9befae8) at WOHttpAdaptor.m:477
#22 0xf7bf74c1 in -[WOHttpAdaptor acceptControlMessage:] (self=0x9a32a78, _cmd=0xf7cd8a48, aNotification=0x98cc708) at WOHttpAdaptor.m:516
#23 0xf75bce79 in ?? () from /usr/lib/libgnustep-base.so.1.16
#24 0xf75bd78b in ?? () from /usr/lib/libgnustep-base.so.1.16
#25 0xf75bd642 in ?? () from /usr/lib/libgnustep-base.so.1.16
#26 0xf79404a2 in -[NSObject(FileObjectWatcher) receivedEvent:type:extra:forMode:] (self=0x98e0cb8, _cmd=0xf7857ab8, _fdData=0x8, _type=ET_RDESC, _extra=0x8, 
    _mode=0xf781d338) at NSRunLoop+FileObjects.m:57
#27 0xf76c1052 in ?? () from /usr/lib/libgnustep-base.so.1.16
#28 0xf76042ec in ?? () from /usr/lib/libgnustep-base.so.1.16
#29 0xf760474a in ?? () from /usr/lib/libgnustep-base.so.1.16
#30 0xf7b4e452 in -[WOCoreApplication run] (self=0x99a6de8, _cmd=0x8051768) at WOCoreApplication.m:576
#31 0x0804a25f in -[SOGo run] (self=0x99a6de8, _cmd=0xf7ca1118) at SOGo.m:275
#32 0xf7b9b3b7 in -[WOWatchDog _runChildWithControlSocket:] (self=0x9a431b8, _cmd=0xf7ca1188, controlSocket=0x98e0cb8) at WOWatchDogApplicationMain.m:499
#33 0xf7b9b6fd in -[WOWatchDog _spawnChild:] (self=0x9a431b8, _cmd=0xf7ca11f8, child=0x99e1250) at WOWatchDogApplicationMain.m:563
#34 0xf7b9a6bd in -[WOWatchDog _ensureChildren] (self=0x9a431b8, _cmd=0xf7ca1300) at WOWatchDogApplicationMain.m:653
#35 0xf7b9aed5 in -[WOWatchDog run:argc:argv:] (self=0x9a431b8, _cmd=0xf7ca1388, newAppName=0x8050660, newArgC=1, newArgV=0xffab72d4)
    at WOWatchDogApplicationMain.m:927
#36 0xf7b9c12c in WOWatchDogApplicationMain (appName=0x8050660, argc=1, argv=0xffab72d4) at WOWatchDogApplicationMain.m:1036
#37 0x08049474 in main (argc=1, argv=0xffab72d4, env=0xffab72dc) at sogod.m:53
(gdb)