JDK-7200762 : [macosx] Stuck in sun.java2d.opengl.CGLGraphicsConfig.getMaxTextureSize(Native Method)
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 7u10
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • OS: os_x
  • CPU: x86
  • Submitted: 2012-09-25
  • Updated: 2013-06-26
  • Resolved: 2012-10-05
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JDK 7 JDK 8
7u10 b12Fixed 8Resolved
Related Reports
Relates :  
JDK-7160609 - [macosx] JDK crash in libjvm.dylib ( C [GeForceGLDriver+0x675a] gldAttachDrawable+0x941)
Description
NetBeans user reported a hang when dragging a toolbar around.

Thread dump is attached.

Evaluation comment from a netbeans engineer: It's deadlock between EDT and AppKit thread which locks java.awt.Component$AWTTreeLock in sun.lwawt.macosx.CDragSourceContextPeer.dragMouseMoved

Related NetBeans bug:
http://netbeans.org/bugzilla/show_bug.cgi?id=218897
Comments
Tests for deadlocks are unstable. OK not to have one.
13-11-2012
Difficult to verify
29-10-2012
Approved for 7u10b11
04-10-2012
Webrev: http://cr.openjdk.java.net/~anthony/7u10-1-getMaxTextureSizeDeadlock-7200762.0/ Review: http://mail.openjdk.java.net/pipermail/awt-dev/2012-September/003601.html Approved by: Artem Ananiev and Andrew Brygin
03-10-2012
SQE is OK with this fix.
03-10-2012
SQE comments please
01-10-2012
SUGGESTED FIX http://cr.openjdk.java.net/~anthony/7u10-1-getMaxTextureSizeDeadlock-7200762.0/
26-09-2012
EVALUATION A solution for 7u10 is to cache the value of getMaxTextureSize() sometime when the LWCToolkit is initialized, and use this value all the time. Note that the top-level window size is further constrained with the current display size which is less than the MaxTextureSize in 99% of cases. Meaning, the 7160609 will regress in those 1% of cases. We find this risk acceptable. For JDK 8 a solution is to try and eliminate acquiring the TreeLock on the AppKit thread. It is a complex solution that requires more testing and isn't suitable for 7u10 at the moment.
26-09-2012
EVALUATION A deadlock between the AppKit Thread and EDT.
25-09-2012
EVALUATION Looks like AWT to me. Nothing in 2D code is locking the tree. The one thing to check is why getMaxTextureSize() we hang although I find this was just added in 7u10 b06 as 7160609 : [macosx] JDK crash in libjvm.dylib ( C [GeForceGLDriver+0x675a] gldAttachDrawable+0x941) ------ "AWT-EventQueue-0" prio=5 tid=0x00007fdcc12be800 nid=0xa603 runnable [0x000000015a88d000] java.lang.Thread.State: RUNNABLE at sun.java2d.opengl.CGLGraphicsConfig.getMaxTextureSize(Native Method) at sun.java2d.opengl.CGLGraphicsConfig.getMaxTextureHeight(CGLGraphicsConfig.java:532) at sun.lwawt.LWWindowPeer.setBounds(LWWindowPeer.java:360) at java.awt.Component.reshapeNativePeer(Component.java:2330) at java.awt.Component.reshape(Component.java:2278) - locked <0x000000011f8006c8> (a java.awt.Component$AWTTreeLock) at java.awt.Window.reshape(Window.java:952) at java.awt.Component.setBounds(Component.java:2243) at java.awt.Window.setBounds(Window.java:3472) - locked <0x000000011f8006c8> (a java.awt.Component$AWTTreeLock) at java.awt.Component.move(Component.java:2091) - locked <0x000000011f8006c8> (a java.awt.Component$AWTTreeLock) at java.awt.Component.setLocation(Component.java:2080) at java.awt.Window.setLocation(Window.java:921) -------------- "AppKit Thread" daemon prio=5 tid=0x00007fdcc1192800 nid=0x707 waiting for monitor entry [0x00007fff5c3aa000] java.lang.Thread.State: BLOCKED (on object monitor) at java.awt.Component.getLocationOnScreen(Component.java:2018) - waiting to lock <0x000000011f8006c8> (a java.awt.Component$AWTTreeLock) at javax.swing.SwingUtilities.convertPointFromScreen(SwingUtilities.java:422) at sun.lwawt.macosx.CDragSourceContextPeer.dragMouseMoved(CDragSourceContextPeer.java:439)
25-09-2012