[8] Request for review: 7149913 [macosx] Deadlock in LWTextComponentPeer (original) (raw)

Sergey Bylokhov sergey.bylokhov at oracle.com
Mon Mar 26 06:37:55 PDT 2012

Hi, Artem. AWT tree lock used for locking delegate.

26.03.2012 17:37, Artem Ananiev wrote:

Hi, Sergey,

On 3/22/2012 6:05 PM, Sergey Bylokhov wrote: Hi Everyone, This is a forward port from jdk 7u4: http://hg.openjdk.java.net/jdk7u/jdk7u4-dev/jdk/rev/91ede930328c

Deadlock happens when 2 threads lock delegateLock and DefaultCaret object in different order. Removed code initially was added to stop recursion between paintPeer and addDirtyRegion( repaintPeer()->paintPeer()->print()->addDirtyRegion()->repaintPeer()-> etc), but it is impossible now because repaintPeer() asynchronous. according to the stack trace in bug description, the evaluation above doesn't look right. Initially reported deadlock involved AWT tree lock, not delegate lock. Thanks, Artem Bug: http://bugs.sun.com/bugdatabase/viewbug.do?bugid=7149913 Webrev can be found at: http://cr.openjdk.java.net/~serb/7149913/webrev.00/

-- Best regards, Sergey.

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