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Xcode 4 always spinning after opening the project
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Xcode 4 always spinning after opening the project

  • Subject: Xcode 4 always spinning after opening the project
  • From: Tito Ciuro <email@hidden>
  • Date: Fri, 20 May 2011 07:50:29 -0700
Hello,

Since last night and for no apparent reason, Xcode 4 starts spinning after opening my project. The spinning seems to be forever and makes Xcode 4 unusable because it never recovers from it. Every other project works fine and never causes Xcode 4 to spin, so I have no idea what could be causing this. So I have sampled Xcode and found something interesting.

Looks like it could be -[IDESourceControlWorkingTree updateLocalStatusForDirectory:completionBlock:] is the culprit, so I removed the project item from Organizer > Repositories. This seems to do the trick! Is there a way to turn off Source Code Control in Xcode 4 completely? I'm using Cornerstone anyway...

Thanks,

-- Tito

Sampling process 1624 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling Xcode (pid 1624) every 1 millisecond
Process:         Xcode [1624]
Path:            /Xcode 4/Applications/Xcode.app/Contents/MacOS/Xcode
Load Address:    0x100000000
Identifier:      com.apple.dt.Xcode
Version:         4.0.2 (99)
Build Info:      IDEApplication-990000~53
Code Type:       X86-64 (Native)
Parent Process:  launchd [185]

Date/Time:       2011-05-20 07:34:37.402 -0700
OS Version:      Mac OS X 10.6.7 (10J869)
Report Version:  7

Call graph:
    2337 Thread_80708   DispatchQueue_1: com.apple.main-thread  (serial)
      2337 0x100000eec
        2337 NSApplicationMain
          2337 -[NSApplication run]
            2337 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
              2337 _DPSNextEvent
                2337 BlockUntilNextEventMatchingListInMode
                  2337 ReceiveNextEventCommon
                    2337 RunCurrentEventLoopInMode
                      2337 CFRunLoopRunSpecific
                        2337 __CFRunLoopRun
                          2337 _dispatch_main_queue_callback_4CF
                            2337 _dispatch_queue_serial_drain_till_empty
                              2337 _dispatch_queue_drain
                                2337 _dispatch_call_block_and_release
                                  2337 ____NSOQSchedule_block_invoke_1
                                    2337 __doStart2
                                      2337 -[__NSOperationInternal start]
                                        2337 __77-[IDESourceControlWorkingTree updateLocalStatusForDirectory:completionBlock:]_block_invoke_01133
                                          2337 -[NSNotificationCenter postNotificationName:object:userInfo:]
                                            2337 _CFXNotificationPostNotification
                                              2337 __CFXNotificationPost
                                                2337 _dispatch_group_wait_slow
                                                  2337 semaphore_wait_trap
    2337 Thread_80715   DispatchQueue_2: com.apple.libdispatch-manager  (serial)
      2337 start_wqthread
        2337 _pthread_wqthread
          2337 _dispatch_worker_thread2
            2337 _dispatch_queue_invoke
              2337 _dispatch_mgr_invoke
                2337 kevent
    2337 Thread_80727
      2337 thread_start
        2337 _pthread_start
          2337 __NSThread__main__
            2337 -[DTDKRemoteDeviceDataListener listenerThreadImplementation]
              2337 CFRunLoopRunSpecific
                2337 __CFRunLoopRun
                  2337 mach_msg
                    2337 mach_msg_trap
    2337 Thread_80728: com.apple.CFSocket.private
      2337 thread_start
        2337 _pthread_start
          2337 __CFSocketManager
            2337 select$DARWIN_EXTSN
    2337 Thread_80733
      2337 thread_start
        2337 _pthread_start
          2337 __NSThread__main__
            2337 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:]
              2337 CFRunLoopRunSpecific
                2337 __CFRunLoopRun
                  2337 mach_msg
                    2337 mach_msg_trap
    2337 Thread_80847
      2337 thread_start
        2337 _pthread_start
          2337 startIOThread(void*)
            2337 CVDisplayLink::runIOThread()
              2337 _pthread_cond_wait
                2337 __semwait_signal
    2337 Thread_80850   DispatchQueue_6: com.apple.root.default-priority  (concurrent)
      2337 start_wqthread
        2337 _pthread_wqthread
          2337 _dispatch_worker_thread2
            2337 _dispatch_call_block_and_release
              2337 ____CFXNotificationPost_block_invoke_1
                2337 _nsnote_callback
                  2337 -[__NSObserver _doit:]
                    2337 -[NSOperation waitUntilFinished]
                      2337 -[__NSOperationInternal waitUntilFinished]
                        2337 _pthread_cond_wait
                          2337 __semwait_signal
    2337 Thread_80858   DispatchQueue_6: com.apple.root.default-priority  (concurrent)
      2337 start_wqthread
        2337 _pthread_wqthread
          2337 _dispatch_worker_thread2
            2337 _dispatch_call_block_and_release
              2337 __doStart2
                2337 -[__NSOperationInternal start]
                  2337 -[NSBlockOperation main]
                    2337 -[IDESourceControlIssueProvider _scanForIssues]
                      2337 -[IDESourceControlWorkspaceMonitor itemsWithStatusInWorkspaceForWorkingTree:]
                        2337 -[IDESourceControlWorkingTree itemsWithStatus]
                          2337 -[DVTDispatchLock performLockedBlock:]
                            2337 _dispatch_barrier_sync_f_slow
                              2337 _dispatch_semaphore_wait_slow
                                2337 semaphore_wait_trap
    2337 Thread_80881   DispatchQueue_569: IDESourceControlWorkingTreeItemsWithStatusLock  (serial)
      2337 start_wqthread
        2337 _pthread_wqthread
          2337 _dispatch_worker_thread2
            2337 _dispatch_queue_invoke
              2337 _dispatch_queue_drain
                2337 _dispatch_call_block_and_release
                  2337 __77-[IDESourceControlWorkingTree updateLocalStatusForDirectory:completionBlock:]_block_invoke_01137
                    2337 -[IDESourceControlWorkingTree mergeStatusOperationResults:forLocalStatusOnly:]
                      2337 -[DVTDispatchLock performLockedBlock:]
                        2337 dispatch_barrier_sync_f
                          2337 __38-[DVTDispatchLock performLockedBlock:]_block_invoke_0
                            2337 __78-[IDESourceControlWorkingTree mergeStatusOperationResults:forLocalStatusOnly:]_block_invoke_0
                              2337 _DVTAssertionFailureHandler
                                2337 +[IDEAssertionHandler _handleAssertionWithLogString:]
                                  2337 _dispatch_barrier_sync_f_slow
                                    2337 _dispatch_semaphore_wait_slow
                                      2337 semaphore_wait_trap
    2337 Thread_80899
      2337 thread_start
        2337 _pthread_start
          2337 __NSThread__main__
            2337 -[XCInvocationQueue _processInvocationsInThreadSlotNumber:]
              2337 _pthread_cond_wait
                2337 __semwait_signal
    2337 Thread_80937
      2337 thread_start
        2337 _pthread_start
          2337 SpotlightQueryThread(void*)
            2337 CFRunLoopRunSpecific
              2337 __CFRunLoopRun
                2337 mach_msg
                  2337 mach_msg_trap
    2337 Thread_80990
      2337 start_wqthread
        2337 _pthread_wqthread
          2337 __workq_kernreturn

Total number in stack (recursive counted multiple, when >=5):
        6       _pthread_start
        6       thread_start
        5       _pthread_wqthread
        5       start_wqthread

Sort by top of stack, same collapsed (when >= 5):
        __semwait_signal        7011
        mach_msg_trap        7011
        semaphore_wait_trap        7011
        __workq_kernreturn        2337
        kevent        2337
        select$DARWIN_EXTSN        2337
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