I've ran into an issue where whenever I open the assistant editor (second code panel) in Xcode, it crashes and gives me an option to reopen Xcode.
Xcode quit unexpectedly
reading the report,seems that CVDisplayLink is to blame
Version 5.0.2 (5A3005)
Is there a way to reset which class is displayed in the 2nd panel?
Process: Xcode [508]
Path: /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 5.0.2 (3335.32)
Build Info: IDEApplication-3335032000000000~4
App Item ID: 497799835
App External ID: 106632651
Code Type: X86-64 (Native)
Parent Process: launchd [131]
User ID: 501
Date/Time: 2014-01-14 12:33:28.087 -0500
OS Version: Mac OS X 10.8.5 (12F45)
Report Version: 10
Interval Since Last Report: 4527 sec
Crashes Since Last Report: 2
Per-App Interval Since Last Report: 444 sec
Per-App Crashes Since Last Report: 2
Anonymous UUID: F0403235-5ECB-ADEA-6618-E5526B9FE281
Crashed Thread: 22 CVDisplayLink
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT
Application Specific Information:
ProductBuildVersion: 5A3005
Thread 0:: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x00007fff886c1372 objc_retain + 18
1 com.apple.dt.DVTKit 0x000000010bf29e59 -[DVTBindingHelper primitiveValueForBinding:] + 88
2 com.apple.dt.DVTKit 0x000000010bf29d44 -[DVTBindingHelper valueForBinding:] + 48
3 com.apple.dt.DVTKit 0x000000010bf2379c -[NSObject(DVTBindingUtilities) updateBoundValueForBinding:] + 227
4 com.apple.dt.DVTKit 0x000000010bf235ec -[DVTBindingHelper observeValueForKeyPath:ofObject:change:context:] + 252
5 com.apple.dt.DVTFoundation 0x000000010b9d0839 -[DVTObservableObjectProxy setRepresentedObject:] + 561
6 com.apple.dt.IDEKit 0x000000010cb1a8a6 -[_IDENavigatorOutlineViewDataSource outlineView:willDisplayCell:forTableColumn:item:] + 280
7 com.apple.AppKit 0x00007fff865c1439 -[NSTableView preparedCellAtColumn:row:] + 1573
8 com.apple.AppKit 0x00007fff865c0c1c -[NSOutlineView preparedCellAtColumn:row:] + 56
9 com.apple.dt.DVTKit 0x000000010bf7ed1f -[DVTOutlineView preparedCellAtColumn:row:] + 54
10 com.apple.dt.IDEKit 0x000000010cc6287e -[IDENavigatorOutlineView preparedCellAtColumn:row:] + 54
11 com.apple.AppKit 0x00007fff865c0b27 -[NSTableView _drawContentsAtRow:column:withCellFrame:] + 47
12 com.apple.AppKit 0x00007fff865c0a9b -[NSOutlineView _drawContentsAtRow:column:withCellFrame:] + 94
13 com.apple.AppKit 0x00007fff865bf55e -[NSTableView drawRow:clipRect:] + 2131
14 com.apple.AppKit 0x00007fff865af3e3 -[NSTableView drawRowIndexes:clipRect:] + 397
15 com.apple.AppKit 0x00007fff865af241 -[NSOutlineView drawRowIndexes:clipRect:] + 113
16 com.apple.AppKit 0x00007fff865addc6 -[NSTableView drawRect:] + 1269
17 com.apple.dt.IDEKit 0x000000010cb18db2 -[IDENavigatorOutlineView drawRect:] + 312
18 com.apple.AppKit 0x00007fff86492064 -[NSView _drawRect:clip:] + 4217
19 com.apple.AppKit 0x00007fff864906c1 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1656
20 com.apple.AppKit 0x00007fff86490ad9 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2704
21 com.apple.AppKit 0x00007fff8648e6f2 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 817
22 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
23 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
24 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
25 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
26 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
27 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
28 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
29 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
30 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
31 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
32 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
33 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
34 com.apple.AppKit 0x00007fff8648fa44 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5763
35 com.apple.AppKit 0x00007fff8648e143 -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 314
36 com.apple.AppKit 0x00007fff86489d6d -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 4675
37 com.apple.AppKit 0x00007fff86453c93 -[NSView displayIfNeeded] + 1830
38 com.apple.AppKit 0x00007fff864531cc _handleWindowNeedsDisplayOrLayoutOrUpdateConstraints + 738
39 com.apple.AppKit 0x00007fff86a1e901 __83-[NSWindow _postWindowNeedsDisplayOrLayoutOrUpdateConstraintsUnlessPostingDisabled]_block_invoke_01208 + 46
40 com.apple.CoreFoundation 0x00007fff87bf0417 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
41 com.apple.CoreFoundation 0x00007fff87bf0381 __CFRunLoopDoObservers + 369
42 com.apple.CoreFoundation 0x00007fff87bcb7b8 __CFRunLoopRun + 728
43 com.apple.CoreFoundation 0x00007fff87bcb0e2 CFRunLoopRunSpecific + 290
44 com.apple.HIToolbox 0x00007fff8975feb4 RunCurrentEventLoopInMode + 209
45 com.apple.HIToolbox 0x00007fff8975fc52 ReceiveNextEventCommon + 356
46 com.apple.HIToolbox 0x00007fff8975fae3 BlockUntilNextEventMatchingListInMode + 62
47 com.apple.AppKit 0x00007fff86450533 _DPSNextEvent + 685
48 com.apple.AppKit 0x00007fff8644fdf2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
49 com.apple.AppKit 0x00007fff864471a3 -[NSApplication run] + 517
50 com.apple.AppKit 0x00007fff863ebbd6 NSApplicationMain + 869
51 libdyld.dylib 0x00007fff80b537e1 start + 1
Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff846d3d16 kevent + 10
1 libdispatch.dylib 0x00007fff890c0dea _dispatch_mgr_invoke + 883
2 libdispatch.dylib 0x00007fff890c09ee _dispatch_mgr_thread + 54
Thread 2:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x00007fff846d1686 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff846d0c42 mach_msg + 70
2 com.apple.CoreFoundation 0x00007fff87bc6233 __CFRunLoopServiceMachPort + 195
3 com.apple.CoreFoundation 0x00007fff87bcb916 __CFRunLoopRun + 1078
4 com.apple.CoreFoundation 0x00007fff87bcb0e2 CFRunLoopRunSpecific + 290
5 com.apple.Foundation 0x00007fff82cde546 +[NSURLConnection(Loader) _resourceLoadLoop:] + 356
6 com.apple.Foundation 0x00007fff82d3c562 __NSThread__main__ + 1345
7 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
8 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 3:
0 libsystem_kernel.dylib 0x00007fff846d1686 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff846d0c42 mach_msg + 70
2 com.apple.CoreFoundation 0x00007fff87bc6233 __CFRunLoopServiceMachPort + 195
3 com.apple.CoreFoundation 0x00007fff87bcb916 __CFRunLoopRun + 1078
4 com.apple.CoreFoundation 0x00007fff87bcb0e2 CFRunLoopRunSpecific + 290
5 com.apple.DTDeviceKitBase 0x000000011328d81a -[DTDKRemoteDeviceDataListener listenerThreadImplementation] + 164
6 com.apple.Foundation 0x00007fff82d3c562 __NSThread__main__ + 1345
7 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
8 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 4:: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x00007fff846d3322 __select + 10
1 com.apple.CoreFoundation 0x00007fff87c0af46 __CFSocketManager + 1302
2 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
3 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 5:: DYMobileDeviceManager
0 libsystem_kernel.dylib 0x00007fff846d1686 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff846d0c42 mach_msg + 70
2 com.apple.CoreFoundation 0x00007fff87bc6233 __CFRunLoopServiceMachPort + 195
3 com.apple.CoreFoundation 0x00007fff87bcb916 __CFRunLoopRun + 1078
4 com.apple.CoreFoundation 0x00007fff87bcb0e2 CFRunLoopRunSpecific + 290
5 com.apple.Foundation 0x00007fff82d417ee -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 268
6 com.apple.Foundation 0x00007fff82cda1aa -[NSRunLoop(NSRunLoop) run] + 74
7 com.apple.GPUToolsMobileFoundation 0x000000011735b96b -[DYMobileDeviceManager _deviceNotificationThread:] + 132
8 com.apple.Foundation 0x00007fff82d3c562 __NSThread__main__ + 1345
9 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
10 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 6:: CVDisplayLink
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.CoreVideo 0x00007fff851532a1 CVDisplayLink::runIOThread() + 689
3 com.apple.CoreVideo 0x00007fff85152fd7 startIOThread(void*) + 148
4 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
5 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 7:: com.apple.CoreAnimation.render-server
0 libsystem_kernel.dylib 0x00007fff846d1686 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff846d0c42 mach_msg + 70
2 com.apple.QuartzCore 0x00007fff815d217b CA::Render::Server::server_thread(void*) + 403
3 com.apple.QuartzCore 0x00007fff81656dc6 thread_fun + 25
4 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
5 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 8:
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.Xcode.DevToolsCore 0x0000000111ac5fd6 -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 506
3 com.apple.Foundation 0x00007fff82d3c562 __NSThread__main__ + 1345
4 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
5 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 9:
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.Xcode.DevToolsCore 0x0000000111ac5fd6 -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 506
3 com.apple.Foundation 0x00007fff82d3c562 __NSThread__main__ + 1345
4 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
5 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 10:
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.Xcode.DevToolsCore 0x0000000111ac5fd6 -[XCBlockQueue _processBlocksInThreadSlotNumber:] + 506
3 com.apple.Foundation 0x00007fff82d3c562 __NSThread__main__ + 1345
4 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
5 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 11:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 12:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 13:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 14:: JavaScriptCore::BlockFree
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.JavaScriptCore 0x00007fff8127fb66 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 118
3 com.apple.JavaScriptCore 0x00007fff814a2bfa JSC::BlockAllocator::blockFreeingThreadMain() + 90
4 com.apple.JavaScriptCore 0x00007fff814b825f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
6 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 15:: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.JavaScriptCore 0x00007fff814059d4 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 212
3 com.apple.JavaScriptCore 0x00007fff814058b6 JSC::MarkStackThreadSharedData::markingThreadMain() + 214
4 com.apple.JavaScriptCore 0x00007fff814b825f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
6 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 16:: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.JavaScriptCore 0x00007fff814059d4 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 212
3 com.apple.JavaScriptCore 0x00007fff814058b6 JSC::MarkStackThreadSharedData::markingThreadMain() + 214
4 com.apple.JavaScriptCore 0x00007fff814b825f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
6 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 17:: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x00007fff846d30fa __psynch_cvwait + 10
1 libsystem_c.dylib 0x00007fff8aa35fb9 _pthread_cond_wait + 869
2 com.apple.JavaScriptCore 0x00007fff814059d4 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 212
3 com.apple.JavaScriptCore 0x00007fff814058b6 JSC::MarkStackThreadSharedData::markingThreadMain() + 214
4 com.apple.JavaScriptCore 0x00007fff814b825f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
6 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 18:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 19:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 20:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 21:
0 libsystem_kernel.dylib 0x00007fff846d36d6 __workq_kernreturn + 10
1 libsystem_c.dylib 0x00007fff8aa33f1c _pthread_workq_return + 25
2 libsystem_c.dylib 0x00007fff8aa33ce3 _pthread_wqthread + 412
3 libsystem_c.dylib 0x00007fff8aa1e191 start_wqthread + 13
Thread 22 Crashed:: CVDisplayLink
0 libobjc.A.dylib 0x00007fff886c136e objc_retain + 14
1 com.apple.SpriteKit 0x0000000119a9521a _cvDisplayLinkCallback + 25
2 com.apple.CoreVideo 0x00007fff8515400b CVDisplayLink::performIO(CVTimeStamp*) + 203
3 com.apple.CoreVideo 0x00007fff85153271 CVDisplayLink::runIOThread() + 641
4 com.apple.CoreVideo 0x00007fff85152fd7 startIOThread(void*) + 148
5 libsystem_c.dylib 0x00007fff8aa31772 _pthread_start + 327
6 libsystem_c.dylib 0x00007fff8aa1e1a1 thread_start + 13
Thread 22 crashed with X86 Thread State (64-bit):
rax: 0x3000000000000000 rbx: 0x000000012450dd80 rcx: 0x0000000000000000 rdx: 0x000000012450dc78
rdi: 0x00007fca0abb7730 rsi: 0x000000012450dd80 rbp: 0x000000012450dc10 rsp: 0x000000012450dbe8
r8: 0x000000012450dcc8 r9: 0x00007fca0abb7730 r10: 0x0000000000000000 r11: 0x00007fff70a14250
r12: 0x00007fca093b46a0 r13: 0x00007fff85153d94 r14: 0x000000012450dc78 r15: 0x0000000119a95201
rip: 0x00007fff886c136e rfl: 0x0000000000000246 cr2: 0xffffff80d2cded20
Logical CPU: 0
I found this answer on the Apple Dev Forums, and it seemed to work for me:
- Navigate to the folder where your .xcodeproj or . xcworkspace is (for CocoaPods projects)
- Right click on .xcodeproj and select "Show package contents"
- Delete xuserdata folder
- Delete project.xcworkspace
- Repeat for .xcworkspace
Now you can reopen the project or workspace with a blank screen and assistant editor minimized.
来源：https://stackoverflow.com/questions/21076701/xcode-systemic-crash-on-open-project-how-to-reset-xcode-assistant-editor