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POEclipse crashes with "Unable to create new native thread" - any ideas? (my settings and info inside)
 

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    <p>I'm having trouble with Eclipse routinely crapping out on me (and being generally sluggish) and I was wondering if anyone could give me any insight. The message that gets thrown is <strong>"Unable to create new native thread."</strong> at which point I'm prompted to restart Eclipse. This happens 5 or so times a day.</p> <p>I'm using Ecliipse Helios Service Release 2 (with Flash Builder plugin) on:</p> <pre><code>Windows Vista Business Processor: Intel Core 2 Duo T7500 @ 2.20 GHz Memory (RAM): 4.00 GB System Type: 32-bit Operating System </code></pre> <p>My eclipse.ini settings which were stolen from this <a href="https://stackoverflow.com/questions/142357/what-are-the-best-jvm-settings-for-eclipse">thread: What are the best jvm settings for eclipse</a>:</p> <pre><code>-startup plugins/org.eclipse.equinox.launcher_1.1.1.R36x_v20101122_1400.jar --launcher.library plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.2.R36x_v20101222 -product org.eclipse.epp.package.jee.product --launcher.defaultAction openFile -showsplash org.eclipse.platform -vm C:/jdk1.6.0_25/jre/bin/client/jvm.dll -vmargs -Dosgi.requiredJavaVersion=1.6 -Declipse.p2.unsignedPolicy=allow -Xmn256m -Xms1024m -Xmx1024m -Xss4m -XX:PermSize=256m -XX:MaxPermSize=256m -XX:CompileThreshold=5 -XX:MaxGCPauseMillis=10 -XX:MaxHeapFreeRatio=70 -XX:+CMSIncrementalPacing -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:+UseFastAccessorMethods -Dcom.sun.management.jmxremote </code></pre> <p>Thanks for any help!</p> <p>edit:</p> <p>@normalocity - the error literally just happened (Unhandled event loop exception), this is after adjusting my eclipse.ini (I changed Xss to 1m, MaxPermSize to 384m, Xms to 512). Here is the additional info you asked for, exception stack trace:</p> <pre><code>java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:640) at org.eclipse.jface.text.contentassist.ContentAssistant$AutoAssistListener.start(ContentAssistant.java:263) at org.eclipse.jface.text.contentassist.ContentAssistant$AutoAssistListener.keyPressed(ContentAssistant.java:345) at com.adobe.flexide.editorcore.contentassist.FlexContentAssistant$FlexAutoAssistListener.keyPressed(FlexContentAssistant.java:47) at org.eclipse.jface.text.contentassist.ContentAssistant$InternalListener.verifyKey(ContentAssistant.java:811) at org.eclipse.jface.text.TextViewer$VerifyKeyListenersManager.verifyKey(TextViewer.java:489) at org.eclipse.swt.custom.StyledTextListener.handleEvent(StyledTextListener.java:65) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:774) at org.eclipse.swt.custom.StyledText.handleKeyDown(StyledText.java:5957) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5656) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1103) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1099) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1508) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4270) at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:345) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4162) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2459) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 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:620) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575) at org.eclipse.equinox.launcher.Main.run(Main.java:1408) </code></pre>
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    1. CO(1) is there a more verbose version of the error? If so, please post it. (2) You say it happens several times a day. What are the related events to when it happens (i.e. when Eclipse is trying to show you a code completion, when you hit "Save", when you close a window, etc.)?
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    2. COI had the exact same problem at my workplace. It started when we moved from 32-bit Windows Server 2003 to 64-bit Windows 7/2008. We use home-made Eclipse plugins that require a lot of memory, so Eclipse was running with -Xmx1380m. On 64-bit Windows it started crashing with `OutOfMemoryError: unable to create new native thread` and `SWTError: No more handles`. Playing with -Xss didn't help. Reducing -Xmx (as some blogs suggest) wasn't an option. Eventually worked around it by upgrading to 64-bit Eclipse and increasing -Xmx to 2 or 3GB.
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      1. POEclipse crashes with "Unable to create new native thread" - any ideas? (my settings and info inside)
      1. USEli Acherkan
    3. COTry to remove -Xss option at all.
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