Bug 54987 - Crash beneath WebPageProxy::viewWillStartLiveResize when resizing window after web process crashed
Summary: Crash beneath WebPageProxy::viewWillStartLiveResize when resizing window afte...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKit2 (show other bugs)
Version: 528+ (Nightly build)
Hardware: PC OS X 10.5
: P2 Normal
Assignee: Beth Dakin
URL:
Keywords: InRadar, PlatformOnly
Depends on:
Blocks:
 
Reported: 2011-02-22 12:40 PST by Adam Roben (:aroben)
Modified: 2011-03-16 16:51 PDT (History)
3 users (show)

See Also:


Attachments
Patch (1.82 KB, patch)
2011-03-16 16:42 PDT, Beth Dakin
darin: review+
Details | Formatted Diff | Diff

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Description Adam Roben (:aroben) 2011-02-22 12:40:44 PST
To reproduce:

1. Kill the web process
2. Resize the window

The UI process will crash beneath WebPageProxy::viewWillStartLiveResize. viewWillStartLiveResize is dereferencing a null WebProcessProxy. Here's the backtrace:

#0  0x021a9f43 in WTF::RefPtr<WebKit::ProcessLauncher>::operator WebKit::ProcessLauncher* WTF::RefPtr<WebKit::ProcessLauncher>::* (this=0x48) at RefPtr.h:72
#1  0x021a7d12 in WebKit::WebProcessProxy::isLaunching (this=0x0) at WebProcessProxy.cpp:132
#2  0x021a841a in WebKit::WebProcessProxy::sendMessage (this=0x0, messageID={m_messageID = 655366}, arguments=@0xbfffe2d8, messageSendFlags=0) at WebProcessProxy.cpp:118
#3  0x021756a8 in WebKit::WebProcessProxy::send<Messages::WebPage::ViewWillStartLiveResize> (this=0x0, message=@0xbfffe338, destinationID=1, messageSendFlags=0) at WebProcessProxy.h:174
#4  0x021511bb in WebKit::WebPageProxy::viewWillStartLiveResize (this=0x889f200) at WebPageProxy.cpp:536
#5  0x021ca19b in -[WKView viewWillStartLiveResize] (self=0xa048560, _cmd=0x99775486) at WKView.mm:302
#6  0x98f54dc8 in -[NSView _startLiveResizeCacheOK:] ()
#7  0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#8  0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#9  0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#10 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#11 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#12 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#13 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#14 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] ()
#15 0x98f54d68 in -[NSView _startLiveResize] ()
#16 0x98f54ce2 in -[NSView _startLiveResizeAsTopLevel] ()
#17 0x98f54cb7 in -[NSThemeFrame _startLiveResizeAsTopLevel] ()
#18 0x98f54c11 in -[NSWindow _startLiveResize] ()
#19 0x996880f0 in -[NSWindow(NSWindowResizing) _resizeWithEvent:] ()
#20 0x98f54a62 in -[NSTitledFrame resizeWithEvent:] ()
#21 0x98f54370 in -[NSTitledFrame mouseDown:] ()
#22 0x98f542ad in -[NSThemeFrame mouseDown:] ()
#23 0x98ef07f5 in -[NSWindow sendEvent:] ()
Comment 1 Adam Roben (:aroben) 2011-02-22 12:41:46 PST
<rdar://problem/9037685>
Comment 2 Beth Dakin 2011-03-16 16:42:52 PDT
Created attachment 85999 [details]
Patch
Comment 3 Beth Dakin 2011-03-16 16:44:17 PDT
I also patched WebPageProxy::initializeUIClient() since I hit the crash there after fixing the live resize spots.
Comment 4 Beth Dakin 2011-03-16 16:51:58 PDT
Thanks Darin! Fixed with revision 81292.