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GWorkspace ddbd dying when mdextractor connects


From: Sebastian Reitenbach
Subject: GWorkspace ddbd dying when mdextractor connects
Date: Sat, 16 Feb 2013 15:21:32 +0100
User-agent: SOGoMail 2.0.4b

Hi,

having ddbd from GWorkspace running, then, when starting mdextractor, the 
latter tries to connect
to ddbd, but will die because of:
/usr/local/bin/mdextractor: Uncaught exception NSInvalidReceivePortException, 
reason: invalidated while awaiting reply

reason for this exception is, ddbd is dying.
With gdb connected to a running ddbd, I get this backtrace when it segfaults:

Program received signal SIGSEGV, Segmentation fault.
0x0ef02527 in objc_msgSend () from /usr/local/lib/libobjc2.so.1.0
(gdb) bt
#0  0x0ef02527 in objc_msgSend () from /usr/local/lib/libobjc2.so.1.0
#1  0x0307aaf3 in -[GSFFIInvocation invokeWithTarget:] (self=0x8bcec384, 
_cmd=0x22db3a98 <.objc_selector_list+168>, anObject=0x87a82cc4)
    at GSFFIInvocation.m:483
#2  0x02effe02 in -[NSInvocation invoke] (self=0x8bcec384, _cmd=0x22da4700 
<.objc_selector_list+1120>) at NSInvocation.m:658
#3  0x02e8287d in -[NSConnection(Private) _service_forwardForProxy:] 
(self=0x82439fd4, _cmd=0x22da43c8 <.objc_selector_list+296>, 
    aRmc=0x8bcec704) at NSConnection.m:2706
#4  0x02e800d6 in -[NSConnection(Private) handlePortMessage:] (self=0x8206da04, 
_cmd=0x22dea1b0 <.objc_selector_list+384>, 
    msg=0x87a82704) at NSConnection.m:2343
#5  0x03064c25 in -[NSMessagePort handlePortMessage:] (self=0x83ccafa4, 
_cmd=0x22dea1b0 <.objc_selector_list+384>, m=0x87a82704)
    at NSMessagePort.m:1586
#6  0x030601f4 in -[GSMessageHandle receivedEvent:type:extra:forMode:] 
(self=0x8878f604, _cmd=0x22dea268 <.objc_selector_list+568>, 
    data=0x83ccafa4, type=ET_RPORT, extra=0x3, mode=0x22dcc3b0 <.objc_str>) at 
NSMessagePort.m:869
#7  0x0306587f in -[NSMessagePort receivedEvent:type:extra:forMode:] 
(self=0x83ccafa4, _cmd=0x22e07c50 <.objc_selector_list+96>, 
    data=0x83ccafa4, type=ET_RPORT, extra=0x3, mode=0x22dcc3b0 <.objc_str>) at 
NSMessagePort.m:1715
#8  0x030d6d77 in -[GSRunLoopCtxt pollUntil:within:] (self=0x82085704, 
_cmd=0x22dcc600 <.objc_selector_list>, milliseconds=29928, 
    contexts=0x8207bd44) at GSRunLoopCtxt.m:639
#9  0x02fa6605 in -[NSRunLoop acceptInputForMode:beforeDate:] (self=0x8207bec4, 
_cmd=0x22dcc668 <.objc_selector_list+104>, 
    mode=0x22dcc3b0 <.objc_str>, limit_date=0x87189db4) at NSRunLoop.m:1206
#10 0x02fa6bb4 in -[NSRunLoop runMode:beforeDate:] (self=0x8207bec4, 
_cmd=0x22dcc678 <.objc_selector_list+120>, 
    mode=0x22dcc3b0 <.objc_str>, date=0x8206d104) at NSRunLoop.m:1274
#11 0x02fa6e5d in -[NSRunLoop runUntilDate:] (self=0x8207bec4, _cmd=0x22dcc748 
<.objc_selector_list+328>, date=0x8206d104)
    at NSRunLoop.m:1305
#12 0x02fa6c37 in -[NSRunLoop run] (self=0x8207bec4, _cmd=0x3c006dc0 
<.objc_selector_list+464>) at NSRunLoop.m:1288
#13 0x1c008978 in gnustep_base_user_main (argc=2, argv=0xcfbf61d4) at ddbd.m:553
#14 0x02f85957 in main (argc=2, argv=0xcfbf61d4, env=0xcfbf61e0) at 
NSProcessInfo.m:984
#15 0x1c005599 in ___start ()
#16 0x1c00550a in _start ()
(gdb) frame 4
#4  0x02e800d6 in -[NSConnection(Private) handlePortMessage:] (self=0x8206da04, 
_cmd=0x22dea1b0 <.objc_selector_list+384>, 
    msg=0x87a82704) at NSConnection.m:2343
2343                [conn _service_forwardForProxy: rmc];       // Catches 
exceptions
(gdb) print 1
$1 = 1
(gdb) frame 1
#1  0x0307aaf3 in -[GSFFIInvocation invokeWithTarget:] (self=0x8bcec384, 
_cmd=0x22db3a98 <.objc_selector_list+168>, anObject=0x87a82cc4)
    at GSFFIInvocation.m:483
483       RETAIN_RETURN_VALUE;
(gdb) list
478       if (*type != _C_VOID)
479         {
480           cifframe_decode_arg(type, _retval);
481         }
482
483       RETAIN_RETURN_VALUE;
484       _validReturn = YES;
485     }
486
487     @end
(gdb) frame 0
#0  0x0ef02527 in objc_msgSend () from /usr/local/lib/libobjc2.so.1.0
(gdb) list
488
489     /*
490      * Return YES if the selector contains protocol qualifiers.
491      */
492     static BOOL
493     gs_protocol_selector(const char *types)
494     {
495       if (types == 0)
496         {
497           return NO;
(gdb) print types

Program received signal SIGSEGV, Segmentation fault.


since its dying deep within gnustep-base, I'm a bit unsure whether this is a 
problem of the tools from
GWorkspace, or a more general problem in -base.

I'm on i386, OpenBSD 5.3-beta, with -base,make,gui,back,gworkspace from SVN.

thanks,
Sebastian



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