[Webkit-unassigned] [Bug 146489] New: UIWebView crashed at UIViewAnimationState popAnimationState

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=146489

            Bug ID: 146489
           Summary: UIWebView crashed at UIViewAnimationState
                    popAnimationState
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: iOS
                OS: iOS 8.0
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wenpkpk at gmail.com

In iOS8, UIWebView has some bugs when it load a page contains video or audio, it crashed some times. 

crash stack:
Version:         9.0.0
Code Type:       ARM-64
Parent Process:  launchd [1]

Date/Time:       2015-06-29 16:46:30 +0000
OS Version:      iPhone OS 8.3 (12F70)
Report Version:  104

Exception Type:  SIGSEGV
Exception Codes: SEGV_MAPERR at 0xd7d0beb8
Crashed Thread:  0

Thread 0 Crashed:
0   libobjc.A.dylib                     0x0000000194bebbd0 objc_msgSend + 16
1   UIKit                               0x0000000187e2a39c +[UIViewAnimationState popAnimationState] + 64
2   MediaPlayer                         0x00000001856b96e8 -[MPVolumeSlider _layoutForAvailableRoutes] + 1248
3   MediaPlayer                         0x00000001856c3a58 __59-[MPAVRoutingController _scheduleSendDelegateRoutesChanged]_block_invoke + 148
4   libdispatch.dylib                   0x0000000195229994 _dispatch_call_block_and_release + 24
5   libdispatch.dylib                   0x0000000195229954 _dispatch_client_callout + 16
6   libdispatch.dylib                   0x000000019522e20c _dispatch_main_queue_callback_4CF + 1608
7   CoreFoundation                      0x000000018336b7f8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
8   CoreFoundation                      0x00000001833698a0 __CFRunLoopRun + 1492
9   CoreFoundation                      0x00000001832952d4 CFRunLoopRunSpecific + 396
10  GraphicsServices                    0x000000018caab6fc GSEventRunModal + 168
11  UIKit                               0x0000000187e5afac UIApplicationMain + 1488
12  MyApp                               0x00000001000bf044 main (main.m:62)
13  libdyld.dylib                       0x0000000195256a08 start + 4

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