Bug 133019

Summary: Web Replay: ASSERTION FAILED: withinEventLoopInputExtent != m_withinEventLoopInputExtent
Product: WebKit Reporter: Brian Burg <burg>
Component: WebCore Misc.Assignee: Brian Burg <burg>
Status: RESOLVED FIXED    
Severity: Normal CC: joepeck, kling, timothy
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 136316    
Bug Blocks: 136290    
Attachments:
Description Flags
WIP none

Description Brian Burg 2014-05-16 17:04:10 PDT 
This assertion seems to be hit when capturing in debug builds during seeming normal mouse input interactions.

It seems that this is some sort of unexpected re-entrancy. Will investigate.
Comment 1 Brian Burg 2014-09-13 13:20:19 PDT 
Appears to be that we enter multiple event loop input extents when handling user inputs inside a nested run loop when the debugger is paused. This only happens when not capturing or replaying, AFAICT.

We temporarily disable breakpoints before starting capturing, so this only seems to happen when neither capturing or replaying.

During replay, we should never be starting run loop tasks while debugger is paused.
Comment 2 Brian Burg 2014-09-24 15:16:17 PDT 
Created attachment 238611 [details]
WIP