Don't think this is a Tools bug, but it's eclipse related and Max
asked to post it. In Linux, I'm randomly facing Eclipse hangs when
opening any files (java, xml...etc) in the editor. The stacktrace looks
like this:

Full thread dump Java HotSpot(TM) Client VM (1.6.0_03-b05 mixed mode, sharing):

"Worker-5" prio=10 tid=0x097c3800 nid=0xcae in Object.wait() [0x07816000..0x07817130]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:185)
• locked <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:217)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:51)

"Worker-4" prio=10 tid=0x09c30400 nid=0xcad in Object.wait() [0x06fbf000..0x06fc00b0]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:185)
• locked <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:217)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:51)

"Worker-3" prio=10 tid=0x09603800 nid=0xcac in Object.wait() [0x02fa7000..0x02fa7e30]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:185)
• locked <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:217)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:51)

"Worker-2" prio=10 tid=0x09b5dc00 nid=0xcab in Object.wait() [0x03a1c000..0x03a1cdb0]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:185)
• locked <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:217)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:51)

"Java indexing" daemon prio=10 tid=0x09ced400 nid=0xcaa in Object.wait() [0x068cb000..0x068cbf30]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x676c2520> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
  at java.lang.Object.wait(Object.java:485)
  at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:369)
• locked <0x676c2520> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
  at java.lang.Thread.run(Thread.java:619)

"Timer-0" daemon prio=10 tid=0x09739400 nid=0xca8 in Object.wait() [0x07c58000..0x07c58eb0]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x67420c68> (a java.util.TaskQueue)
  at java.util.TimerThread.mainLoop(Timer.java:509)
• locked <0x67420c68> (a java.util.TaskQueue)
  at java.util.TimerThread.run(Timer.java:462)

"Thread-3" prio=10 tid=0x09714800 nid=0xca7 in Object.wait() [0x02ff8000..0x02ff9030]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x673d66f8> (a java.lang.ref.ReferenceQueue$Lock)
  at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
• locked <0x673d66f8> (a java.lang.ref.ReferenceQueue$Lock)
  at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
  at org.tmatesoft.svn.core.javahl.SVNClientImplTracker.run(SVNClientImplTracker.java:51)
  at java.lang.Thread.run(Thread.java:619)

"Worker-1" prio=10 tid=0x09b7bc00 nid=0xca5 in Object.wait() [0x02f56000..0x02f57130]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:185)
• locked <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:217)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:51)

"Worker-0" prio=10 tid=0x09993c00 nid=0xca3 in Object.wait() [0x02f05000..0x02f05e30]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:185)
• locked <0x66b13738> (a org.eclipse.core.internal.jobs.WorkerPool)
  at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:217)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:51)

"Start Level Event Dispatcher" daemon prio=10 tid=0x09846400 nid=0xca0 in Object.wait() [0x06d9c000..0x06d9cdb0]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66ab54d8> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
  at java.lang.Object.wait(Object.java:485)
  at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:355)
• locked <0x66ab54d8> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
  at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:293)

"OSGi Console" prio=10 tid=0x097f7000 nid=0xc9f runnable [0x02eb4000..0x02eb4f30]
java.lang.Thread.State: RUNNABLE
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:199)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)

• locked <0x6699a0f8> (a java.io.BufferedInputStream)
  at java.io.FilterInputStream.read(FilterInputStream.java:116)
  at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
  at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
  at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
• locked <0x66a5d9c8> (a java.io.InputStreamReader)
  at java.io.InputStreamReader.read(InputStreamReader.java:167)
  at java.io.BufferedReader.fill(BufferedReader.java:136)
  at java.io.BufferedReader.readLine(BufferedReader.java:299)
• locked <0x66a5d9c8> (a java.io.InputStreamReader)
  at java.io.BufferedReader.readLine(BufferedReader.java:362)
  at org.eclipse.osgi.framework.internal.core.FrameworkConsole.console(FrameworkConsole.java:273)
  at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(FrameworkConsole.java:218)
  at java.lang.Thread.run(Thread.java:619)

"Framework Event Dispatcher" daemon prio=10 tid=0x097f7800 nid=0xc9e in Object.wait() [0x07159000..0x07159eb0]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x66a5da48> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
  at java.lang.Object.wait(Object.java:485)
  at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:355)
• locked <0x66a5da48> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
  at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:293)

"State Data Manager" daemon prio=10 tid=0x09818000 nid=0xc9d waiting on condition [0x07b3a000..0x07b3b030]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.eclipse.osgi.internal.baseadaptor.StateManager.run(StateManager.java:297)
at java.lang.Thread.run(Thread.java:619)

"Low Memory Detector" daemon prio=10 tid=0x095c8400 nid=0xc9b runnable [0x00000000..0x00000000]
java.lang.Thread.State: RUNNABLE

"CompilerThread0" daemon prio=10 tid=0x095c6c00 nid=0xc9a waiting on condition [0x00000000..0x04851b48]
java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" daemon prio=10 tid=0x095c5400 nid=0xc99 waiting on condition [0x00000000..0x00000000]
java.lang.Thread.State: RUNNABLE

"Finalizer" daemon prio=10 tid=0x095c0c00 nid=0xc98 in Object.wait() [0x00d54000..0x00d54db0]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x6698b088> (a java.lang.ref.ReferenceQueue$Lock)
  at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
• locked <0x6698b088> (a java.lang.ref.ReferenceQueue$Lock)
  at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
  at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=10 tid=0x095bc800 nid=0xc97 in Object.wait() [0x00495000..0x00495f30]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)

• waiting on <0x6698b118> (a java.lang.ref.Reference$Lock)
  at java.lang.Object.wait(Object.java:485)
  at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
• locked <0x6698b118> (a java.lang.ref.Reference$Lock)

"main" prio=10 tid=0x09594800 nid=0xc95 runnable [0xbf998000..0xbf99bbd8]
java.lang.Thread.State: RUNNABLE
at org.eclipse.swt.internal.gtk.OS._gtk_enumerate_printers(Native Method)
at org.eclipse.swt.internal.gtk.OS.gtk_enumerate_printers(OS.java:6260)
at org.eclipse.swt.printing.Printer.getPrinterList(Printer.java:79)
at org.eclipse.jface.text.TextViewer.isPrintable(TextViewer.java:4135)
at org.eclipse.jface.text.TextViewer.canDoOperation(TextViewer.java:3672)
at org.eclipse.jface.text.source.SourceViewer.canDoOperation(SourceViewer.java:667)
at org.eclipse.jface.text.source.projection.ProjectionViewer.canDoOperation(ProjectionViewer.java:1531)
at org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer.canDoOperation(JavaSourceViewer.java:193)
at org.eclipse.ui.texteditor.TextOperationAction.update(TextOperationAction.java:157)
at org.eclipse.ui.texteditor.TextOperationAction.<init>(TextOperationAction.java:103)
at org.eclipse.ui.texteditor.AbstractTextEditor.createActions(AbstractTextEditor.java:5411)
at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.createActions(AbstractDecoratedTextEditor.java:1029)
at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.createActions(JavaEditor.java:2259)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.createActions(CompilationUnitEditor.java:1033)
at org.eclipse.ui.texteditor.AbstractTextEditor.createPartControl(AbstractTextEditor.java:3330)
at org.eclipse.ui.texteditor.StatusTextEditor.createPartControl(StatusTextEditor.java:53)
at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.createPartControl(AbstractDecoratedTextEditor.java:378)
at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.createPartControl(JavaEditor.java:2618)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.createPartControl(CompilationUnitEditor.java:1416)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:299)
at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:179)
at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:400)
at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1604)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:499)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:485)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112)
at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63)
at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:217)
at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:207)
at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:774)
at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:673)
at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:634)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2737)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2651)
at org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:2643)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2595)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2590)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2574)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2565)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:299)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:173)
at org.eclipse.jdt.ui.JavaUI.openInEditor(JavaUI.java:670)
at org.eclipse.jdt.internal.ui.actions.OpenTypeAction.runWithEvent(OpenTypeAction.java:79)
at org.eclipse.jdt.internal.ui.actions.OpenTypeAction.runWithEvent(OpenTypeAction.java:119)
at org.eclipse.ui.internal.handlers.ActionDelegateHandlerProxy.execute(ActionDelegateHandlerProxy.java:263)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:475)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:429)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:165)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:470)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:821)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:879)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:568)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:510)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:126)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1423)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1100)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1125)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1110)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1137)
at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:663)
at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:2533)
at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:679)
at org.eclipse.swt.widgets.Tree.gtk_key_press_event(Tree.java:1845)
at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1486)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4234)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:3973)
at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method)
at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:5593)
at org.eclipse.swt.widgets.Display.eventProc(Display.java:1192)
at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1487)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2969)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)

"VM Thread" prio=10 tid=0x095bb000 nid=0xc96 runnable

"VM Periodic Task Thread" prio=10 tid=0x095e3000 nid=0xc9c waiting on condition

JNI global references: 1445

Heap
def new generation total 3328K, used 1634K [0x641d0000, 0x64560000, 0x66930000)
eden space 3008K, 48% used [0x641d0000, 0x6433ffc0, 0x644c0000)
from space 320K, 50% used [0x64510000, 0x64538a20, 0x64560000)
to space 320K, 0% used [0x644c0000, 0x644c0000, 0x64510000)
tenured generation total 42924K, used 25752K [0x66930000, 0x6931b000, 0x841d0000)
the space 42924K, 59% used [0x66930000, 0x68256188, 0x68256200, 0x6931b000)
compacting perm gen total 34304K, used 34267K [0x841d0000, 0x86350000, 0x941d0000)
the space 34304K, 99% used [0x841d0000, 0x86346c58, 0x86346e00, 0x86350000)
ro space 8192K, 73% used [0x941d0000, 0x947b2560, 0x947b2600, 0x949d0000)
rw space 12288K, 58% used [0x949d0000, 0x950c7448, 0x950c7600, 0x955d0000)

Killed