Looks like the crash is happening while attempting to invoke
-respondsToSelector:.
Odds are that this is a message being sent to [self delegate], which looks like
a deallocated object.
Is it possible that the split view is outliving its delegate? Typically, when a
delegate gets deallocated (or when you release it for the last time), you are
responsible for calling setDelegate:nil on anything that you had previously set
it as a delegate for.
-KP
On Aug 20, 2012, at 12:57 PM, Jerry Krinock <je...@ieee.org> wrote:
> 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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