Bug 62587

Summary:

[Texmap] [Qt] [WK2] Unsync in TextureMapperNode between parent and child lists cause crashes on WK2.

Product:

WebKit

Reporter:

Viatcheslav Ostapenko <ostap73>

Component:

Platform

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

noam, webkit.review.bot

Priority:

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

Bug Depends on:

Bug Blocks:

47068

Attachments:

Description	Flags
Fix parent/children unsync in TextureMapperNode.	noam: review+, noam: commit-queue-
Updated Changelog by Noams request.	none

Viatcheslav Ostapenko

Reported 2011-06-13 12:33:29 PDT

In TextureMapperNode::syncCompositingStateSelf in ParentChange "if" statement m_parent gets overwritten 1st and node gets removed from new m_parent child list and never added. In ChildrenChange m_children list gets cleared, but m_parent members of child nodes are not cleared. This cause unsync in m_children <-> m_parent linkage and random crashes mostly ~TextureMapperNode(), but also in other places when already deallocated node gets referenced because it wasn't removed from child list.

Attachments
Fix parent/children unsync in TextureMapperNode. (2.58 KB, patch) 2011-06-13 12:49 PDT, Viatcheslav Ostapenko	noam: review+ noam: commit-queue-	Details Formatted Diff Diff
Updated Changelog by Noams request. (2.59 KB, patch) 2011-07-17 21:04 PDT, Viatcheslav Ostapenko	no flags	Details Formatted Diff Diff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.

Viatcheslav Ostapenko

Comment 1 2011-06-13 12:49:07 PDT

Created attachment 96991 [details] Fix parent/children unsync in TextureMapperNode.

Noam Rosenthal

Comment 2 2011-07-16 15:02:50 PDT

Comment on attachment 96991 [details] Fix parent/children unsync in TextureMapperNode. View in context: https://bugs.webkit.org/attachment.cgi?id=96991&action=review > Source/WebCore/ChangeLog:10 > + Unofficially reviewed by Noam Rosenthal (module author). This is now an official review, so please remove this line before committing.

Viatcheslav Ostapenko

Comment 3 2011-07-17 21:04:20 PDT

Created attachment 101122 [details] Updated Changelog by Noams request.

WebKit Review Bot

Comment 4 2011-07-18 10:05:02 PDT

Comment on attachment 101122 [details] Updated Changelog by Noams request. Clearing flags on attachment: 101122 Committed r91192: <http://trac.webkit.org/changeset/91192>

WebKit Review Bot

Comment 5 2011-07-18 10:05:06 PDT

All reviewed patches have been landed. Closing bug.

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