Re: GWorkspace hangs on first exit attempt. Remote objects problem?

[Richard Frith-Macdonald]

On 9 Mar 2013, at 12:20, Fred Kiefer wrote:
>> 
>> here I checked:
>> (gdb) p [invocation->_sig isOneway]
>> $7 = 1 '\001'
>> 
>> so it appears that the information about oneway is properly passed, right?
>> (gdb) p invocation->_sig->_methodTypes
>> $9 = 0x17a9c30 "Vv24@0:8@16"
>> 
>> Is this enough? In case not you need to tell me which part to inspect.
> 
> 
> I think the interesting stuff happens in frame 4. There we end up in the 
> needsResponse == YES branch, which seems wrong for a one way method call. You 
> should have a look at the block from line 2016 to 2039 and find out why 
> needsResponse gets set to YES. Most likely the method type gets compute 
> wrongly. We seem to get these strange results sometimes from libobjc2.

Yes ... I can't reproduce  the problem on any system I have apaer from the 
debian 64bit one where I recently installed using llvm/clang and libobjc2.
So this seems to be either an llvm/clang specific issue or a libobjc2 specific 
issue, with the code going wrong later on (ie the invocation itsself seems 
fine).
Unfortunately, llvm/clang produces output here that gdb on debian stable won't 
handle, so while I can reproduce the exception I can't debug it ...
I'm going to try finding a backport of a very recent gdb, or failing that, 
build gdb from source, to see if it can tell me where the compiler/runtime is 
producing an unexpected result.