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Re: Why is examining changes during Merge so hard?
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Re: Why is examining changes during Merge so hard?


  • Subject: Re: Why is examining changes during Merge so hard?
  • From: Jerry Krinock <email@hidden>
  • Date: Tue, 11 Nov 2014 09:22:21 -0500

> On 2014 Nov 09, at 09:41, Scott Ribe <email@hidden> wrote:
>
>  I use SourceTree, and it makes that easy …

Thank you, Scott.  I try and avoid jumping into new tools and techniques because, you know, just around the time I invest myself past the knee of the learning curve, the community of young developer kids and/or Apple decide to dump it and move on to something newer.

But I might have to bite the bullet on this one, because in the project I work on every day, Xcode 6 is consistently crashing on me after I've flipped the “Choose Left”, “Choose Right” controls back and forth in a file, then click the next file in the list.  Sometimes it crashes even if I’ve just *looked* at a file.  Also, the “Merge” button in the sheet often remains disabled even after I have resolved all conflicts.  (The C remains, not red but black.)

Jerry

Typical crash:

Process:               Xcode [31739]
Path:                  /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier:            com.apple.dt.Xcode
Version:               6.1 (6604)
Build Info:            IDEFrameworks-6604000000000000~2
App Item ID:           497799835
App External ID:       752282650
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Xcode [31739]
User ID:               501

Date/Time:             2014-11-11 08:47:13.001 -0500
OS Version:            Mac OS X 10.10.1 (14B17)
Report Version:        11
Anonymous UUID:        CBF707B6-7638-964A-F2C6-56E3B2A70477

Sleep/Wake UUID:       9D126E5E-0E39-469B-AD87-79F084369AC3

Time Awake Since Boot: 230000 seconds
Time Since Wake:       190 seconds

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x000007fec83996d8

VM Regions Near 0x7fec83996d8:
    MALLOC_LARGE           00000001c17bc000-00000001c1ba6000 [ 4008K] rw-/rwx SM=PRV
-->
    JS JIT generated code  00002fe16ae00000-00002fe16ae01000 [    4K] ---/rwx SM=NUL

Application Specific Information:
objc_msgSend() selector name: needsUpdate
ProductBuildVersion: 6A1052d

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libobjc.A.dylib               	0x00007fff878710dd objc_msgSend + 29
1   com.apple.dt.DVTKit           	0x000000010dc9aaa0 -[DVTSourceLandmarkItem needsUpdate] + 44
2   com.apple.dt.IDE.IDESourceEditor	0x0000000117b70611 -[IDESourceCodeEditor _isCurrentSelectedItemsValid] + 100
3   com.apple.dt.IDE.IDESourceEditor	0x0000000117b706c2 -[IDESourceCodeEditor _refreshCurrentSelectedItemsIfNeeded] + 42
4   com.apple.dt.IDE.IDESourceEditor	0x0000000117b13db7 -[IDESourceCodeEditor viewWillUninstall] + 127
5   com.apple.dt.DVTKit           	0x000000010dc98714 -[DVTViewController _willUninstallContentView:] + 244
6   com.apple.dt.DVTKit           	0x000000010dabb285 -[DVTControllerContentView _viewWillUninstall] + 226
7   com.apple.dt.DVTKit           	0x000000010da9aa6b -[DVTControllerContentView viewWillMoveToWindow:] + 71
8   com.apple.AppKit              	0x00007fff87d6e7af -[NSView _setWindow:] + 258
9   com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
10  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
11  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
12  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
13  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
14  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
15  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
16  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
17  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
18  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
19  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
20  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
21  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
22  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
23  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
24  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
25  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
26  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
27  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
28  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
29  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
30  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
31  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
32  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
33  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
34  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
35  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
36  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
37  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
38  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
39  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
40  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
41  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
42  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
43  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
44  com.apple.CoreFoundation      	0x00007fff87070365 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 133
45  com.apple.CoreFoundation      	0x00007fff8706fa69 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 313
46  com.apple.AppKit              	0x00007fff8845bfe4 __21-[NSView _setWindow:]_block_invoke727 + 169
47  com.apple.Foundation          	0x00007fff8440a4ae -[NSISEngine withBehaviors:performModifications:] + 155
48  com.apple.AppKit              	0x00007fff87d6f292 -[NSView _setWindow:] + 3045
49  com.apple.AppKit              	0x00007fff87d70292 -[NSView removeFromSuperview] + 453
50  com.apple.AppKit              	0x00007fff87dc48fa -[NSView removeFromSuperviewWithoutNeedingDisplay] + 38
51  com.apple.dt.IDEKit           	0x000000010e83f18d -[IDEEditorContext setupNewEditor:] + 788
52  com.apple.dt.IDEKit           	0x000000010e840e32 __91-[IDEEditorContext _openNavigableItem:documentExtension:document:shouldInstallEditorBlock:]_block_invoke + 1311
53  com.apple.dt.IDEKit           	0x000000010e693d5b -[IDEEditorContext _performBlockInsideReentrantGuard:] + 132
54  com.apple.dt.IDEKit           	0x000000010e693bae -[IDEEditorContext _openNavigableItem:documentExtension:document:shouldInstallEditorBlock:] + 3521
55  com.apple.dt.IDEKit           	0x000000010e6c75c5 -[IDEEditorContext _openNavigableItem:withContentsOfURL:documentExtension:shouldInstallEditorBlock:] + 1713
56  com.apple.dt.IDEKit           	0x000000010e6f7560 -[IDEEditorContext _openNavigableItem:withContentsOfURL:shouldInstallEditorBlock:] + 989
57  com.apple.dt.IDEKit           	0x000000010e84295d -[IDEEditorContext _notifyDelegateAndOpenNavigableItem:withContentsURL:documentExtensionIdentifier:locationToSelect:annotationRepresentedObject:stateDictionary:annotationWantsIndicatorAnimation:exploreAnnotationRepresentedObject:highlightSelection:skipSubDocumentNavigationUnlessEditorIsReplaced:] + 3713
58  com.apple.dt.IDEKit           	0x000000010e70ba85 -[IDEEditorContext _notifyDelegateAndOpenEditorOpenSpecifier:updateHistory:] + 1088
59  com.apple.dt.IDEKit           	0x000000010e70b2b4 -[IDEEditorContext _openEditorOpenSpecifier:updateHistory:] + 430
60  com.apple.dt.IDEKit           	0x000000010e70b0e9 -[IDEEditorContext openEditorOpenSpecifier:] + 261
61  com.apple.dt.IDEKit           	0x000000010e984e09 __46-[IDEReviewFilesViewController viewDidInstall]_block_invoke_3 + 182
62  com.apple.dt.IDEKit           	0x000000010e984c40 __46-[IDEReviewFilesViewController viewDidInstall]_block_invoke_2 + 603
63  com.apple.dt.DVTFoundation    	0x000000010d65c22b __73-[DVTObservingBlockToken observeValueForKeyPath:ofObject:change:context:]_block_invoke183 + 83
64  com.apple.dt.DVTFoundation    	0x000000010d5d8028 DVTInvokeWithStrongOwnership + 75
65  com.apple.dt.DVTFoundation    	0x000000010d48b8fc -[DVTObservingBlockToken observeValueForKeyPath:ofObject:change:context:] + 328
66  com.apple.Foundation          	0x00007fff843c1c73 NSKeyValueNotifyObserver + 382
67  com.apple.Foundation          	0x00007fff843c0e48 NSKeyValueDidChange + 463
68  com.apple.Foundation          	0x00007fff843c59ad -[NSObject(NSKeyValueObserverNotification) didChangeValueForKey:] + 118
69  com.apple.dt.IDEKit           	0x000000010e750bf7 -[IDEReviewFilesNavigator updateSelectedDocumentLocation] + 302
70  com.apple.dt.IDEKit           	0x000000010e7507c6 -[IDEReviewFilesNavigator outlineViewSelectionDidChange:] + 302
71  com.apple.dt.IDEKit           	0x000000010e6e7dd2 -[_IDENavigatorOutlineViewDataSource outlineViewSelectionDidChange:] + 134
72  com.apple.CoreFoundation      	0x00007fff8710bcbc __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
73  com.apple.CoreFoundation      	0x00007fff86ffd1b4 _CFXNotificationPost + 3140
74  com.apple.Foundation          	0x00007fff843baea1 -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
75  com.apple.dt.DVTFoundation    	0x000000010d62bd1e -[NSNotificationCenter(DVTNSNotificationCenterAdditions) _dvt_postNotificationName:object:userInfo:] + 125
76  com.apple.AppKit              	0x00007fff87e64587 -[NSTableView _sendSelectionChangedNotificationForRows:columns:] + 175
77  com.apple.AppKit              	0x00007fff87dbcd13 -[NSTableView _enableSelectionPostingAndPost] + 409
78  com.apple.AppKit              	0x00007fff87f236fb -[NSTableView mouseDown:] + 5984
79  com.apple.AppKit              	0x00007fff8801b31f -[NSOutlineView mouseDown:] + 74
80  com.apple.dt.IDEKit           	0x000000010e72965a -[IDENavigatorOutlineView mouseDown:] + 416
81  com.apple.AppKit              	0x00007fff88481f7f -[NSWindow _reallySendEvent:] + 12827
82  com.apple.AppKit              	0x00007fff87f0c53c -[NSWindow sendEvent:] + 368
83  com.apple.AppKit              	0x00007fff87ebe0c6 -[NSApplication sendEvent:] + 2238
84  com.apple.dt.IDEKit           	0x000000010e6537f4 -[IDEApplication sendEvent:] + 924
85  com.apple.AppKit              	0x00007fff87d4aec8 -[NSApplication run] + 711
86  com.apple.AppKit              	0x00007fff87d36304 NSApplicationMain + 1832
87  libdyld.dylib                 	0x00007fff88be05c9 start + 1

Logical CPU:     0
Error Code:      0x020000b8
Trap Number:     133


Binary Images:
       0x10d479000 -        0x10d479ff7  com.apple.dt.Xcode (6.1 - 6604) <C8B71594-717B-3353-B053-139C444DC0D7> /Applications/Xcode.app/Contents/MacOS/Xcode
       0x10d484000 -        0x10d8b5ff7  com.apple.dt.DVTFoundation (6.1 - 6604) <6BD764CE-7762-3CF3-B6D6-732EE718C3ED>

. . .

External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 118469
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 44128492
    thread_create: 0
    thread_set_state: 16027

Model: MacBookAir6,2, BootROM MBA61.0099.B16, 2 processors, Intel Core i5, 1.3 GHz, 4 GB, SMC 2.13f12
Graphics: Intel HD Graphics 5000, Intel HD Graphics 5000, Built-In
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3230554638454455302D474E2D4620
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3230554638454455302D474E2D4620
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x117), Broadcom BCM43xx 1.0 (7.15.124.12.10)
Bluetooth: Version 4.3.1f1 14950, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0256F, 251 GB
USB Device: Internal Memory Card Reader
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: MacBook Air, Apple Inc., 23.6


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 >Why is examining changes during Merge so hard? (From: Jerry Krinock <email@hidden>)
 >Re: Why is examining changes during Merge so hard? (From: Scott Ribe <email@hidden>)

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