openjdk team mailing list archive

[Daniel Manrique <daniel.manrique@xxxxxxxxxxxxx>]

Here's some analysis of source code for swt-gtk:

The source file that's at the top of the Java stack is:

org/eclipse/swt/widgets/MenuItem.java

The offending method is

public void setText(String string)

After a bunch of Java code, the call that fails is:

int /*long*/ oldPtr = OS.GTK_ACCEL_LABEL_GET_ACCEL_STRING (label); //THIS ONE
OS.GTK_ACCEL_LABEL_SET_ACCEL_STRING (label, ptr); // We don't reach this line

>From code a bit further up it looks like label is a label widget
(clearly, heh).

This macro is defined in the C files that interface with GTK, under a
section "Field accesors":

#define GTK_ACCEL_LABEL_GET_ACCEL_STRING(arg0) (arg0)->accel_string

Looks like what it does is fetch the accel_string member of the struct
passed as a parameter (a GtkWidget is essentially a struct). To someone
who knows a bit more about Java->C interfacing and/or GTK, it might be
clear under which circumstances the call GtkAccelLabel->accel_string
might segfault. GtkAccelLabel comes from os.c where
GTK_1ACCEL_1LABEL_1GET_1ACCEL_1STRING (familiar as it appears early in
the stack trace file as the name of the Problematic Frame) is defined as
follows:

JNIEXPORT jintLong JNICALL OS_NATIVE(GTK_1ACCEL_1LABEL_1GET_1ACCEL_1STRING)
    (JNIEnv *env, jclass that, jintLong arg0)
{
    jintLong rc = 0;
    OS_NATIVE_ENTER(env, that, GTK_1ACCEL_1LABEL_1GET_1ACCEL_1STRING_FUNC);
    rc = (jintLong)GTK_ACCEL_LABEL_GET_ACCEL_STRING((GtkAccelLabel *)arg0);
    OS_NATIVE_EXIT(env, that, GTK_1ACCEL_1LABEL_1GET_1ACCEL_1STRING_FUNC);
    return rc;
}

So, determining the value for which an attempt to access the
accel_string segfaults would yield more information.

I'll ask for some advice upstream on the Ubuntu package this stuff
should be associated to, for further investigation by people more
knowledgeable than me :)

---
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You received this bug notification because you are a member of OpenJDK,
which is subscribed to openjdk-6 in Ubuntu.
https://bugs.launchpad.net/bugs/789123

Title:
  Eclipse crashes/quits without any error messages

Status in “openjdk-6” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: eclipse

  Installed software:
    CollabNet Merge Client	2.2.3	com.collabnet.subversion.merge.feature.feature.group
    Eclipse IDE for Java Developers	1.3.2.20110301-1807	epp.package.java
    Eclipse Web Developer Tools	3.2.3.v201102160541-7O7CFbWEMf84qYjGDyP3DNEwcgFU	org.eclipse.wst.web_ui.feature.feature.group
    ERMaster	1.0.0.v20101001-0024	org.insightech.er.feature.feature.group
    Google App Engine Java SDK 1.4.0	1.4.0.v201012021502	com.google.appengine.eclipse.sdkbundle.e36.feature.1.4.0.feature.group
    Google Plugin for Eclipse 3.6	2.3.0.r36v201104261928	com.google.gdt.eclipse.suite.e36.feature.feature.group
    Google Web Toolkit SDK 2.1.1	2.1.1.v201012170127	com.google.gwt.eclipse.sdkbundle.e36.feature.2.1.1.feature.group
    JNA Library	3.2.7	com.sun.jna.feature.group
    Maven Integration for Eclipse (Required)	0.12.1.20110112-1712	org.maven.ide.eclipse.feature.feature.group
    Subversive Revision Graph (Optional) (Incubation)	0.7.9.I20110124-1700	org.eclipse.team.svn.revision.graph.feature.group
    Subversive SVN Connectors	2.2.2.I20110124-1700	org.polarion.eclipse.team.svn.connector.feature.group
    Subversive SVN Integration for the Mylyn Project (Optional) (Incubation)	0.7.9.I20110207-1700	org.eclipse.team.svn.mylyn.feature.group
    Subversive SVN JDT Ignore Extensions (Optional) (Incubation)	0.7.9.I20101203-1700	org.eclipse.team.svn.resource.ignore.rules.jdt.feature.group
    Subversive SVN Team Provider (Incubation)	0.7.9.I20110207-1700	org.eclipse.team.svn.feature.group
    SVNKit 1.3.5 Implementation (Optional)	2.2.2.I20110124-1700	org.polarion.eclipse.team.svn.connector.svnkit16.feature.group


  Problem:
  When working on Java-classes my Eclipse can suddenly decide to just quit. No "Saving workspace" or nothing, it just disappears just like that. This typically happens around twice per day. The latest crash today came when i was asking for code completion pop-up to appear for a class i was working on.

  I have not found any logs or anything that gives any information about
  these crashes, so please give me some tips for logs you want me to
  check. (This is not serious enough to get in the syslog/dmesg)

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: eclipse (not installed)
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Fri May 27 14:59:00 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: eclipse
  UpgradeStatus: Upgraded to natty on 2011-04-29 (28 days ago)
  --- 
  Architecture: amd64
  DistroRelease: Ubuntu 11.04
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  NonfreeKernelModules: nvidia
  Package: openjdk-6-jre-headless 6b22-1.10.1-0ubuntu1
  PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Tags:  natty
  Uname: Linux 2.6.38-8-generic x86_64
  UpgradeStatus: Upgraded to natty on 2011-04-29 (31 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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