14149634: GuardMalloc reveals issue in Kana input method in Simulator

[openradar-mirror]

Description

13-Jun-2013 04:23 PM Jonathan Gary:
Summary:
Using, Xcode Version 4.6.2 (4H1003), with enabled guard malloc, any app crashes revealing extended candidate scroll view.

Steps to Reproduce:

• Get Apple HelloWorld iPhone sample app
• Enable Guard Malloc in diagnostic options in the scheme editor
• Select the the Kana input keyboard
• Type the top left character
• Tap the expander on the right side just above the keyboard

Expected Results:

• Expander

Actual Results:

• Crash in debugger

bt

• thread 22108400: Swift 2.0b4: Allow if let and guard let to assign to self in failable value type initializers #1: tid = 0x1c03, 0x0089ff25 UIKit__68-[UIKeyboardCandidateScrollViewController initiateIncrementalLayout]_block_invoke_0403 + 436, stop reason = EXC_BAD_ACCESS (code=1, address=0x39599fe4) frame #0: 0x0089ff25 UIKit68-[UIKeyboardCandidateScrollViewController initiateIncrementalLayout]_block_invoke_0403 + 436
  frame 22108400: Swift 2.0b4: Allow if let and guard let to assign to self in failable value type initializers #1: 0x0089e894 UIKit-[UIKeyboardCandidateScrollViewController layoutRowsWithLimit:] + 3060 frame #2: 0x0089ea53 UIKit-[UIKeyboardCandidateScrollViewController stepIncrementalLayout] + 250
  frame 22108354: Swift 2.0b4: Curried initializer syntax #3: 0x000235b3 Foundation__NSFireDelayedPerform + 380 frame #4: 0x01490376 CoreFoundation__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION + 22
  frame 22108118: Apple Music: No Love Icon On CarPlay #5: 0x0148fe06 CoreFoundation__CFRunLoopDoTimer + 534 frame #6: 0x01477a82 CoreFoundation__CFRunLoopRun + 1810
  frame 22107493: Xocde 7, can't run playground. Unable to create target for stub executable. unable to find executable for #7: 0x01476f44 CoreFoundationCFRunLoopRunSpecific + 276 frame #8: 0x01476e1b CoreFoundationCFRunLoopRunInMode + 123
  frame 22107374: Xcode should mark debugging messages originating from the main thread #9: 0x01e0b7e3 GraphicsServicesGSEventRunModal + 88 frame #10: 0x01e0b668 GraphicsServicesGSEventRun + 104
  frame 22106545: automaticallyAdjustsScrollViewInsets doesn't change insets on iOS 9 #11: 0x00402ffc UIKitUIApplicationMain + 1211 frame #12: 0x0000245d HelloWorldmain(argc=1, argv=0xbffff2a8) + 125 at main.m:53

Regression:

Notes:

Product Version: 6.1
Created: 2013-06-13T23:51:45.446172
Originated: 2013-06-13T00:00:00
Open Radar Link: http://www.openradar.me/14149634