Bug 133019 - Web Replay: ASSERTION FAILED: withinEventLoopInputExtent != m_withinEventLoopInputExtent
Summary: Web Replay: ASSERTION FAILED: withinEventLoopInputExtent != m_withinEventLoop...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebCore Misc. (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Brian Burg
URL:
Keywords:
Depends on: 136316
Blocks: WebReplay
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Reported: 2014-05-16 17:04 PDT by Brian Burg
Modified: 2014-09-25 18:47 PDT (History)
3 users (show)

See Also:

Attachments
WIP (2.29 KB, patch)
2014-09-24 15:16 PDT, Brian Burg 		no flags Details | Formatted Diff | Diff
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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