0 Replies
      Latest reply on Oct 22, 2019 12:22 PM by n8gray
      n8gray Level 1 Level 1 (0 points)

        Update: We can profile using the Allocations instrument, but not the Leaks instrument.

         

        My company's app cannot be run under instruments (the leaks instrument, specifically).  We have tried:

        * Xcode 11

        * Xcode 11 beta

        * Various simulators

        * Debug build

        * Release build

        * Rebooting the machine

        * Trying on various machines

         

        This is under Mojave 10.14.6

         

        No matter what I do, the result is identical.  The app works fine if I debug with Xcode, but if I launch with instruments it sticks at the launch screen.  When I attach the debugger to the process and pause, I get this backtrace:

         

        Thread 1 Queue : com.apple.main-thread (serial)
        
        
        #0 0x0000000119b9e88a in syscall_thread_switch ()
        #1 0x000000010b5df237 in _OSSpinLockLockYield ()
        #2 0x000000010b5c123b in dyld::notifyBatchPartial(dyld_image_states, bool, char const* (*)(dyld_image_states, unsigned int, dyld_image_info const*), bool, bool) ()
        #3 0x000000010b5c9e85 in ImageLoader::link(ImageLoader::LinkContext const&, bool, bool, bool, ImageLoader::RPathChain const&, char const*) ()
        #4 0x000000010b5c1c86 in dyld::link(ImageLoader*, bool, bool, ImageLoader::RPathChain const&, unsigned int) ()
        #5 0x000000010b5c5f88 in dlopen_internal ()
        #6 0x00007fff5198a9ed in dlopen ()
        #7 0x00007fff50b1484a in imp_implementationWithBlock ()
        #8 0x000000010b6635df in _swapMethods ()
        #9 0x000000010b664b13 in _willInitializeClass ()
        #10 0x00007fff50b01ea9 in initializeNonMetaClass ()
        #11 0x00007fff50b01cc2 in initializeNonMetaClass ()
        #12 0x00007fff50b01cc2 in initializeNonMetaClass ()
        #13 0x00007fff50b024ba in initializeAndMaybeRelock(objc_class*, objc_object*, mutex_tt&, bool) ()
        #14 0x00007fff50b0ca5d in lookUpImpOrForward ()
        #15 0x00007fff50afd219 in _objc_msgSend_uncached ()
        #16 0x000000010b5c1695 in dyld::notifyBatchPartial(dyld_image_states, bool, char const* (*)(dyld_image_states, unsigned int, dyld_image_info const*), bool, bool) ()
        #17 0x000000010b5ca024 in ImageLoader::link(ImageLoader::LinkContext const&, bool, bool, bool, ImageLoader::RPathChain const&, char const*) ()
        #18 0x000000010b5c1c86 in dyld::link(ImageLoader*, bool, bool, ImageLoader::RPathChain const&, unsigned int) ()
        #19 0x000000010b5c5f88 in dlopen_internal ()
        #20 0x00007fff5198a9ed in dlopen ()
        #21 0x00007fff50b1484a in imp_implementationWithBlock ()
        #22 0x000000010b6635df in _swapMethods ()
        #23 0x000000010b664b13 in _willInitializeClass ()
        #24 0x00007fff50b021d4 in _objc_addWillInitializeClassFunc ()
        #25 0x000000010b664ae1 in ___enumerateClasses_block_invoke ()
        #26 0x00007fff519477b9 in _dispatch_client_callout ()
        #27 0x00007fff519489e5 in _dispatch_once_callout ()
        #28 0x000000010b663216 in _enumerateClasses ()
        #29 0x000000010b662f4c in ___AllocationsSetup_block_invoke_2 ()
        #30 0x00007fff519477b9 in _dispatch_client_callout ()
        #31 0x00007fff519489e5 in _dispatch_once_callout ()
        #32 0x000000010b662ec1 in ___AllocationsSetup_block_invoke ()
        #33 0x000000010b661d70 in _AllocationsSetup ()
        #34 0x000000010b6618dc in __OAInit ()
        #35 0x000000010b5d03a7 in ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) ()
        #36 0x000000010b5d07b8 in ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) ()
        #37 0x000000010b5cb9a2 in ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) ()
        #38 0x000000010b5ca7a6 in ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) ()
        #39 0x000000010b5ca846 in ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) ()
        #40 0x000000010b5bf046 in dyld::initializeMainExecutable() ()
        #41 0x000000010b5c30fc in dyld::_main(macho_header const*, unsigned long, int, char const**, char const**, char const**, unsigned long*) ()
        #42 0x000000010b5be1cd in start_sim ()
        #43 0x0000000119b62234 in dyld::useSimulatorDyld(int, macho_header const*, char const*, int, char const**, char const**, char const**, unsigned long*, unsigned long*) ()
        #44 0x0000000119b600ce in dyld::_main(macho_header const*, unsigned long, int, char const**, char const**, char const**, unsigned long*) ()
        #45 0x0000000119b5b503 in dyldbootstrap::start(macho_header const*, int, char const**, long, macho_header const*, unsigned long*) ()
        #46 0x0000000119b5b036 in _dyld_start ()

         

        Has anybody seen anything like this?