Re: FreeBSD / libobj2 issue after update - all apps crash

[Riccardo Mottola]

Hi David!

David Chisnall wrote:
> Can you do a backtrace of where the crash is?  What is the protocol 
> that it's inspecting while crashing?

of course... here it is:

Program received signal SIGABRT, Aborted.
0x00000008028ca47a in thr_kill () from /lib/libc.so.7
(gdb) bt
#0  0x00000008028ca47a in thr_kill () from /lib/libc.so.7
#1  0x00000008028ca444 in raise () from /lib/libc.so.7
#2  0x00000008028ca3b9 in abort () from /lib/libc.so.7
#3  0x00000008029498e1 in __assert () from /lib/libc.so.7
#4  0x000000080218fe18 in protocol_getMethodDescription () from 
/usr/local/lib/libobjc.so.4.6
#5  0x000000080218fc9b in protocol_getMethodDescription () from 
/usr/local/lib/libobjc.so.4.6
#6  0x0000000801c9d532 in GSProtocolGetMethodDescriptionRecursive 
(aProtocol=0x8020a93d0, aSel=0x8020aa010,
    isRequired=1 '\001', isInstance=1 '\001') at GSObjCRuntime.m:827
#7  0x0000000801b80bd4 in -[NSDistantObject methodSignatureForSelector:] 
(self=0x80a98cf98,
    _cmd=<value optimized out>, aSelector=0x8020aa010) at 
NSDistantObject.m:727
#8  0x0000000801c9b302 in GSFFIInvocationCallback (cif=0x80a9fff00, 
retp=0x7fffffffe420, args=0x7fffffffe2b0,
    user=0x80a86e4c8) at GSFFIInvocation.m:538
#9  0x00000008057c62ad in ffi_closure_unix64_inner () from 
/usr/local/lib/libffi.so.6
#10 0x00000008057c69d0 in ffi_closure_unix64 () from 
/usr/local/lib/libffi.so.6
#11 0x0000000801b82cb0 in -[NSDistributedNotificationCenter 
addObserver:selector:name:object:suspensionBehavior:] (
    self=<value optimized out>, _cmd=<value optimized out>, 
anObserver=0x80a740548, aSelector=<value optimized out>,
    notificationName=0x0, anObject=<value optimized out>, 
suspensionBehavior=2)
    at NSDistributedNotificationCenter.m:341
#12 0x0000000801b82999 in -[NSDistributedNotificationCenter 
addObserver:selector:name:object:] (self=0x80a841688,
    _cmd=<value optimized out>, anObserver=<value optimized out>, 
aSelector=<value optimized out>,
    notificationName=<value optimized out>, anObject=<value optimized 
out>) at NSDistributedNotificationCenter.m:266
#13 0x0000000801187ca9 in -[_GSWorkspaceCenter init] (self=0x80a740548, 
_cmd=<value optimized out>)
    at NSWorkspace.m:352
#14 0x0000000801189616 in -[NSWorkspace init] (self=0x80a7f8b98, 
_cmd=<value optimized out>) at NSWorkspace.m:755
#15 0x0000000801189433 in +[NSWorkspace sharedWorkspace] (self=<value 
optimized out>, _cmd=<value optimized out>)
    at NSWorkspace.m:703
#16 0x00000008010076e2 in -[NSApplication finishLaunching] 
(self=0x8088174c8, _cmd=<value optimized out>)
    at NSApplication.m:1104
#17 0x0000000801008e85 in -[NSApplication run] (self=0x8088174c8, 
_cmd=<value optimized out>) at NSApplication.m:1561
#18 0x0000000800fecd24 in NSApplicationMain (argc=<value optimized out>, 
argv=<value optimized out>) at Functions.m:91
#19 0x0000000000404985 in _start ()
#20 0x000000080062f000 in ?? ()
#21 0x0000000000000000 in ?? ()

it definitely has to do with distributed notifications, this is the 
protocol and its selector that are being looked up in frame #6

(gdb) po NSStringFromProtocol(aProtocol)
GDNCProtocol
(gdb) po NSStringFromSelector(aSel)
registerClient:

does this help you?

Riccardo