launchd tool crashing
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Re: launchd tool crashing
by Damien Sorresso
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NSConnection is a Foundation API. You should ask the Cocoa list.
-- Damien Sorresso BSD Engineering Apple Inc. On Aug 28, 2009, at 12:21 PM, Steve Gehrman wrote: > I got a launchd tool working using ServiceManagement framework. It > runs as root. > > The tool is setup to run for a few seconds after the last request > and it will keep alive as long as requests are coming in using > MachServices. > > When idle, the tool exits. > > If I try to run the tool a second time, it crashes. I found out the > problem was on the application side I was using an NSConnection that > connected to the tool that has already died. I didn't get any > NSConnectionDied notifications or anything, so there's no way for me > to know on the application side when the connection has gone down. > If I try to use that connection, I get crashes, and I'm afraid there > since this launchd stuff is so crash prone that it won't be reliable. > > I'm also sending an object "byRef" using DO from the application to > my tool so the tool can talk back to my application. I'm using the > same connection I get from connectionWithRegisteredName. > > My application does this to connect to the tool: > > NSConnection* connection = [NSConnection > connectionWithRegisteredName:[self hostServerName] host:nil]; > > Do I need to invalidate the NSConnection before the tool dies? I > think I just delete it. > > The crash is 100% repeatable. If I don't reuse the NSConnection on > the app side for the next incoming request, it works fine. Should I > always tear down the NSConnection and get it fresh for every call I > make to my tool? > > // the crash > > Process: com.cocoatech.pathfinder.SMHelper [36457] > Path: /Library/PrivilegedHelperTools/ > com.cocoatech.pathfinder.SMHelper > Identifier: com.cocoatech.pathfinder.SMHelper > Version: ??? (???) > Code Type: X86 (Native) > Parent Process: launchd [1] > > Date/Time: 2009-08-28 00:25:47.754 -0700 > OS Version: Mac OS X 10.6 (10A432) > Report Version: 6 > > Exception Type: EXC_BREAKPOINT (SIGTRAP) > Exception Codes: 0x0000000000000002, 0x0000000000000000 > Crashed Thread: 0 Dispatch queue: com.apple.main-thread > > Application Specific Information: > *** Terminating app due to uncaught exception > 'NSInternalInconsistencyException', reason: '*** - > [NSConcretePortCoder decodeInvocation]: no local target' > *** Call stack at first throw: > ( > 0 CoreFoundation 0x9447b58a __raiseError + 410 > 1 libobjc.A.dylib 0x94304f49 > objc_exception_throw + 56 > 2 CoreFoundation 0x9447b2b8 +[NSException > raise:format:arguments:] + 136 > 3 CoreFoundation 0x9447b22a +[NSException > raise:format:] + 58 > 4 Foundation 0x9352619f - > [NSConcretePortCoder decodeInvocation] + 130 > 5 Foundation 0x935207ae - > [NSConcretePortCoder decodeRetainedObject] + 794 > 6 Foundation 0x934ff805 _NSWalkData2 + > 1098 > 7 Foundation 0x93525aa9 -[NSConnection > handleRequest:sequence:] + 76 > 8 Foundation 0x9351fdfe -[NSConnection > handlePortCoder:] + 951 > 9 Foundation 0x9351fa2d - > [NSConcretePortCoder dispatch] + 160 > 10 Foundation 0x93507039 __NSFireMachPort > + 325 > 11 CoreFoundation 0x943eadf2 > __CFMachPortPerform + 338 > 12 CoreFoundation 0x943eab8e > __CFRunLoopDoSource1 + 366 > 13 CoreFoundation 0x943e69e9 __CFRunLoopRun + > 5561 > 14 CoreFoundation 0x943e4d34 > CFRunLoopRunSpecific + 452 > 15 CoreFoundation 0x943e4b61 > CFRunLoopRunInMode + 97 > 16 Foundation 0x934df3e4 -[NSRunLoop > (NSRunLoop) runMode:beforeDate:] + 279 > 17 Foundation 0x935343c8 -[NSRunLoop > (NSRunLoop) runUntilDate:] + 79 > 18 com.cocoatech.pathfinder.SMHelper 0x00002bb6 - > [NTSMHelperToolConnection(Private) startRunloop] + 198 > 19 com.cocoatech.pathfinder.SMHelper 0x00002633 + > [NTSMHelperToolConnection connect] + 179 > 20 com.cocoatech.pathfinder.SMHelper 0x00002556 main + 102 > 21 com.cocoatech.pathfinder.SMHelper 0x000024e5 start + 53 > ) > > > Thread 0 Crashed: Dispatch queue: com.apple.main-thread > 0 com.apple.CoreFoundation 0x944c5b07 > ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ + 7 > 1 libobjc.A.dylib 0x94304f49 objc_exception_throw + > 56 > 2 com.apple.CoreFoundation 0x943e4fbc CFRunLoopRunSpecific + > 1100 > 3 com.apple.CoreFoundation 0x943e4b61 CFRunLoopRunInMode + 97 > 4 com.apple.Foundation 0x934df3e4 -[NSRunLoop(NSRunLoop) > runMode:beforeDate:] + 279 > 5 com.apple.Foundation 0x935343c8 -[NSRunLoop(NSRunLoop) > runUntilDate:] + 79 > 6 ...coatech.pathfinder.SMHelper 0x00002bb6 - > [NTSMHelperToolConnection(Private) startRunloop] + 198 > 7 ...coatech.pathfinder.SMHelper 0x00002633 + > [NTSMHelperToolConnection connect] + 179 > 8 ...coatech.pathfinder.SMHelper 0x00002556 main + 102 > (NTSMHelperTool.m:19) > 9 ...coatech.pathfinder.SMHelper 0x000024e5 start + 53 > > Thread 1: Dispatch queue: com.apple.libdispatch-manager > 0 libSystem.B.dylib 0x9634b10a kevent + 10 > 1 libSystem.B.dylib 0x9634b824 _dispatch_mgr_invoke + > 215 > 2 libSystem.B.dylib 0x9634ace1 _dispatch_queue_invoke > + 163 > 3 libSystem.B.dylib 0x9634aa86 > _dispatch_worker_thread2 + 234 > 4 libSystem.B.dylib 0x9634a511 _pthread_wqthread + 390 > 5 libSystem.B.dylib 0x9634a356 start_wqthread + 30 > > Thread 2: > 0 libSystem.B.dylib 0x9634a1a2 __workq_kernreturn + 10 > 1 libSystem.B.dylib 0x9634a738 _pthread_wqthread + 941 > 2 libSystem.B.dylib 0x9634a356 start_wqthread + 30 > > Thread 0 crashed with X86 Thread State (32-bit): > eax: 0x00000000 ebx: 0x94304f25 ecx: 0xa06ef500 edx: 0x0000003b > edi: 0xa046eab0 esi: 0x00201a90 ebp: 0xbffffb18 esp: 0xbffffb00 > ss: 0x0000001f efl: 0x00000286 eip: 0x944c5b07 cs: 0x00000017 > ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037 > cr2: 0x00032000 > > Binary Images: > 0x1000 - 0x3ff7 +com.cocoatech.pathfinder.SMHelper ??? (???) > <361D2609-7597-AD42-0EFC-50122CD7183B> /Library/ > PrivilegedHelperTools/com.cocoatech.pathfinder.SMHelper > 0x8fe00000 - 0x8fe4162b dyld 132.1 (???) <211AF0DD-42D9-79C8- > BB6A-1F4BEEF4B4AB> /usr/lib/dyld > 0x90003000 - 0x90083feb com.apple.SearchKit 1.3.0 (1.3.0) <9E18AEA5- > F4B4-8BE5-EEA9-818FC4F46FD9> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/ > Versions/A/SearchKit > 0x90206000 - 0x9022eff7 libxslt.1.dylib ??? (???) <769EF4B2- > C1AD-73D5-AAAD-1564DAEA77AF> /usr/lib/libxslt.1.dylib > 0x90388000 - 0x90425ff3 com.apple.LaunchServices 360.3 (360.3) > <C8590D53-E46A-F58A-7CF2-03A8159D8569> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/Frameworks/ > LaunchServices.framework/Versions/A/LaunchServices > 0x90426000 - 0x90688ff3 com.apple.security 6.0 (36910) > <F045B57C-054F-F06F-EF7E-EABEC2700274> /System/Library/Frameworks/ > Security.framework/Versions/A/Security > 0x90d12000 - 0x90d4fff7 com.apple.SystemConfiguration 1.10 (1.10) > <897AEEAF-CF5D-2843-C33B-31A0A7C98A6A> /System/Library/Frameworks/ > SystemConfiguration.framework/Versions/A/SystemConfiguration > 0x91118000 - 0x91121ff7 com.apple.DiskArbitration 2.3 (2.3) > <E9C40767-DA6A-6CCB-8B00-2D5706753000> /System/Library/Frameworks/ > DiskArbitration.framework/Versions/A/DiskArbitration > 0x91508000 - 0x91609fe7 libxml2.2.dylib ??? (???) > <C242A74D-280A-90C3-3F79-891624AA45D2> /usr/lib/libxml2.2.dylib > 0x91cc0000 - 0x91d06ff7 libauto.dylib ??? (???) <FAB17F30-A28B- > E33D-6E21-C7119C9C83ED> /usr/lib/libauto.dylib > 0x91d54000 - 0x91ed6fe7 libicucore.A.dylib ??? (???) <FBB66376- > CBA9-8149-A1AA-10AB8578C3B3> /usr/lib/libicucore.A.dylib > 0x91ff5000 - 0x92028ff7 com.apple.AE 496 (496) <B638FDD4-7322-F0E4- > ACEB-777D8A1399E1> /System/Library/Frameworks/CoreServices.framework/ > Versions/A/Frameworks/AE.framework/Versions/A/AE > 0x92e58000 - 0x92f11fe7 libsqlite3.dylib ??? (???) > <16CEF8E8-8C9A-94CD-EF5D-05477844C005> /usr/lib/libsqlite3.dylib > 0x9306d000 - 0x9307aff7 com.apple.NetFS 3.2 (3.2) > <E6FD80B0-0238-0C42-A3EC-EBDEC107A1C3> /System/Library/Frameworks/ > NetFS.framework/Versions/A/NetFS > 0x9348f000 - 0x936ffffb com.apple.Foundation 6.6 (751) > <A61B645E-1A15-5BCA-3043-C8AB85C6AD30> /System/Library/Frameworks/ > Foundation.framework/Versions/C/Foundation > 0x9383d000 - 0x938e4fe7 com.apple.CFNetwork 454.4 (454.4) > <7C563385-9893-3B48-8607-5BC81DA2C4CF> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/ > Versions/A/CFNetwork > 0x93a2f000 - 0x93a3bff7 libkxld.dylib ??? (???) > <152C8DBB-0149-5827-3240-E57CA85CFE5F> /usr/lib/system/libkxld.dylib > 0x93e68000 - 0x93e68ff7 com.apple.CoreServices 44 (44) > <AC35D112-5FB9-9C8C-6189-5F5945072375> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/CoreServices > 0x94038000 - 0x94092ff7 com.apple.framework.IOKit 2.0 (???) > <7618DDEC-2E3B-9C6E-FDC9-15169E24B4FB> /System/Library/Frameworks/ > IOKit.framework/Versions/A/IOKit > 0x942fb000 - 0x943a8fe7 libobjc.A.dylib ??? (???) <410DD065-A18F- > F054-0457-65525F4D1039> /usr/lib/libobjc.A.dylib > 0x943a9000 - 0x94520fef com.apple.CoreFoundation 6.6 (550) > <193E33D6-2E92-3452-773B-60A1A9CCC573> /System/Library/Frameworks/ > CoreFoundation.framework/Versions/A/CoreFoundation > 0x94760000 - 0x94774fe7 libbsm.0.dylib ??? (???) > <14CB053A-7C47-96DA-E415-0906BA1B78C9> /usr/lib/libbsm.0.dylib > 0x95f48000 - 0x96267fe7 com.apple.CoreServices.CarbonCore 859.1 > (859.1) <2E72AF56-4BE6-294A-7372-19C360688B8B> /System/Library/ > Frameworks/CoreServices.framework/Versions/A/Frameworks/ > CarbonCore.framework/Versions/A/CarbonCore > 0x962d0000 - 0x962defe7 libz.1.dylib ??? (???) <7B7A02AB- > DA99-6180-880E-D28E4F9AA8EB> /usr/lib/libz.1.dylib > 0x962df000 - 0x96323fe7 com.apple.Metadata 10.6.0 (507.1) > <CBD1B22B-5F10-C784-03A2-35106B97DF3F> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/Frameworks/Metadata.framework/ > Versions/A/Metadata > 0x96324000 - 0x964c8feb libSystem.B.dylib ??? (???) <068CC3F2-F867- > A231-A16C-CC01C29A9816> /usr/lib/libSystem.B.dylib > 0x9688a000 - 0x968f4fe7 libstdc++.6.dylib ??? (???) <411D87F4- > B7E1-44EB-F201-F8B4F9227213> /usr/lib/libstdc++.6.dylib > 0x969d4000 - 0x969d7fe7 libmathCommon.A.dylib ??? (???) > <1622A54F-1A98-2CBE-B6A4-2122981A500E> /usr/lib/system/ > libmathCommon.A.dylib > 0x97343000 - 0x97369fff com.apple.DictionaryServices 1.1 (1.1) > <07694B30-56A9-5C98-B8BC-DA0628715FA8> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/Frameworks/ > DictionaryServices.framework/Versions/A/DictionaryServices > 0x98c75000 - 0x98d3ffef com.apple.CoreServices.OSServices 352 (352) > <D9F21CA4-EED0-705F-8F3C-F1322D114B52> /System/Library/Frameworks/ > CoreServices.framework/Versions/A/Frameworks/OSServices.framework/ > Versions/A/OSServices > 0xffff0000 - 0xffff1fff libSystem.B.dylib ??? (???) <068CC3F2-F867- > A231-A16C-CC01C29A9816> /usr/lib/libSystem.B.dylib > > _______________________________________________ > launchd-dev mailing list > launchd-dev@... > http://lists.macosforge.org/mailman/listinfo.cgi/launchd-dev _______________________________________________ launchd-dev mailing list launchd-dev@... http://lists.macosforge.org/mailman/listinfo.cgi/launchd-dev |
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