SUMMARY
While testing an app in 10.8 today, it crashed three times out of six upon
restoring from the Versions Browser. But the problem has now gone away. I
don't have enough information to file a bug report or try any more workarounds,
so I'm throwing my observations out there in case someone else has seen or will
see this problem. Maybe we can put our observations together and get further.
DETAILS
Crash report is at end of this message. You see all of the stack is in Apple's
code.
Not knowing what else to do, I subclassed NSSplitView, to log the parameters
and invoke super. After doing this, I couldn't make it crash any more :| The
logged parameters were always reasonable. Assuming that this is going to bite
back later, I left it subclassed with the following rather do-nothing
implementation…
- (void)resizeSubviewsWithOldSize:(NSSize)oldBoundsSize {
NSRect screenFrame = [[[self window] screen] frame] ;
if (oldBoundsSize.width > screenFrame.size.width) {
NSLog(@"Warning 502-9481 clipped split view width to %f",
screenFrame.size.width) ;
}
if (oldBoundsSize.height > screenFrame.size.height) {
NSLog(@"Warning 502-9482 clipped split view height to %f",
screenFrame.size.height) ;
}
[super resizeSubviewsWithOldSize:oldBoundsSize] ;
}
Maybe it will crash again someday and tell me something.
Other factors which may be involved…
• Just last week, I cleaned up and started compiling this app as 64-bit, built
in Xcode 4 with NSSplitView and Mac OS X 10.8 SDK. The version now in the
field is 32-bit only, built in Xcode 3 with RBSplitView and Mac OS X 10.6 SDK.
• In Mac OS X 10.8, in the Versions browser, when clicking on the view of the
old version, the view magnifies and gets bigger. I don't remember this
happening in 10.7. Possibly this resizing is triggering the crash.
• Others have seen this method crash, although in different ways…
http://dev.sequelpro.com/log/viewreports/1392/37095
http://dev.sequelpro.com/log/view/1392
Thanks for reading,
Jerry Krinock
Here is some of the crash report…
Code Type: X86-64 (Native)
Parent Process: launchd [125]
User ID: 501
Date/Time: 2012-08-20 05:36:00.652 -0700
OS Version: Mac OS X 10.8 (12A256)
Report Version: 10
Interval Since Last Report: 12640 sec
Crashes Since Last Report: 1
Per-App Crashes Since Last Report: 1
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT
Application Specific Information:
objc_msgSend() selector name: respondsToSelector:
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x00007fff8c0b0590 objc_msgSend_vtable5
+ 16
1 com.apple.AppKit 0x00007fff90a316d5 -[NSSplitView
resizeSubviewsWithOldSize:] + 370
2 com.apple.AppKit 0x00007fff908103c8 -[NSView
setFrameSize:] + 1101
3 com.apple.AppKit 0x00007fff9080fc0e -[NSView setFrame:]
+ 299
4 com.apple.AppKit 0x00007fff90864e92 -[NSView
resizeWithOldSuperviewSize:] + 1502
5 com.apple.AppKit 0x00007fff90863fd7 -[NSView
resizeSubviewsWithOldSize:] + 318
6 com.apple.AppKit 0x00007fff908103c8 -[NSView
setFrameSize:] + 1101
7 com.apple.AppKit 0x00007fff9080fc0e -[NSView setFrame:]
+ 299
8 com.apple.AppKit 0x00007fff90a10f6d -[NSTabView
_resizeSelectedTabViewItem] + 119
9 com.apple.AppKit 0x00007fff90a10ee4 -[NSTabView
setFrameSize:] + 218
10 com.apple.AppKit 0x00007fff9080fc0e -[NSView setFrame:]
+ 299
11 com.apple.AppKit 0x00007fff90864e92 -[NSView
resizeWithOldSuperviewSize:] + 1502
12 com.apple.AppKit 0x00007fff90863fd7 -[NSView
resizeSubviewsWithOldSize:] + 318
13 com.apple.AppKit 0x00007fff908103c8 -[NSView
setFrameSize:] + 1101
14 com.apple.AppKit 0x00007fff9080fc0e -[NSView setFrame:]
+ 299
15 com.apple.AppKit 0x00007fff90864e92 -[NSView
resizeWithOldSuperviewSize:] + 1502
16 com.apple.AppKit 0x00007fff90863fd7 -[NSView
resizeSubviewsWithOldSize:] + 318
17 com.apple.AppKit 0x00007fff908103c8 -[NSView
setFrameSize:] + 1101
18 com.apple.AppKit 0x00007fff9086e254 -[NSThemeFrame
setFrameSize:] + 513
19 com.apple.AppKit 0x00007fff9086d34f -[NSWindow
_setFrame:updateBorderViewSize:] + 929
20 com.apple.AppKit 0x00007fff9086cac4 -[NSWindow
_oldPlaceWindow:] + 1142
21 com.apple.AppKit 0x00007fff9086bf79 -[NSWindow
_setFrameCommon:display:stashSize:] + 1837
22 com.apple.AppKit 0x00007fff90733933 __28-[NSMoveHelper
_doAnimation]_block_invoke_0 + 1003
23 com.apple.CoreFoundation 0x00007fff8bd464b4
__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
24 com.apple.CoreFoundation 0x00007fff8bd45fcd __CFRunLoopDoTimer +
557
25 com.apple.CoreFoundation 0x00007fff8bd2b7b9 __CFRunLoopRun + 1513
26 com.apple.CoreFoundation 0x00007fff8bd2add2 CFRunLoopRunSpecific
+ 290
27 com.apple.AppKit 0x00007fff9073332c -[NSMoveHelper
_doAnimation] + 1373
28 com.apple.AppKit 0x00007fff90732b66 -[NSMoveHelper
_resizeWindow:toFrame:display:] + 493
29 com.apple.AppKit 0x00007fff90a1f773 -[NSWindow
setFrame:display:animate:] + 1337
30 com.apple.AppKit 0x00007fff90f8314c __block_global_9 +
141
31 libdispatch.dylib 0x00007fff95c64f3d
_dispatch_call_block_and_release + 15
32 libdispatch.dylib 0x00007fff95c610fa
_dispatch_client_callout + 8
33 libdispatch.dylib 0x00007fff95c659ab
_dispatch_after_timer_callback + 22
34 libdispatch.dylib 0x00007fff95c610fa
_dispatch_client_callout + 8
35 libdispatch.dylib 0x00007fff95c632d7
_dispatch_source_invoke + 691
36 libdispatch.dylib 0x00007fff95c62349
_dispatch_queue_invoke + 72
37 libdispatch.dylib 0x00007fff95c660cd
_dispatch_main_queue_callback_4CF + 220
38 com.apple.CoreFoundation 0x00007fff8bd2b81e __CFRunLoopRun + 1614
39 com.apple.CoreFoundation 0x00007fff8bd2add2 CFRunLoopRunSpecific
+ 290
40 com.apple.HIToolbox 0x00007fff8d2a3774
RunCurrentEventLoopInMode + 209
41 com.apple.HIToolbox 0x00007fff8d2a3512
ReceiveNextEventCommon + 356
42 com.apple.HIToolbox 0x00007fff8d2a33a3
BlockUntilNextEventMatchingListInMode + 62
43 com.apple.AppKit 0x00007fff9083d1d3 _DPSNextEvent + 685
44 com.apple.AppKit 0x00007fff9083ca92 -[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
45 com.apple.AppKit 0x00007fff90833e33 -[NSApplication run]
+ 517
46 com.apple.AppKit 0x00007fff907d8886 NSApplicationMain +
869
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