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[Bug 323110] Re: firefox segfault while using java

 

Launchpad has imported 7 comments from the remote bug at
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=290.

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------------------------------------------------------------------------
On 2009-01-30T13:48:16+00:00 Matthias Klose wrote:

seen with IcedTea6 1.4 on amd64:

$ ICEDTEAPLUGIN_DEBUG=1 firefox
ICEDTEA PLUGIN: Factory::IcedTeaPluginFactory
CONSTRUCTING FACTORY
ICEDTEAPLUGIN_DEBUG = 1
ICEDTEA PLUGIN: Factory::IcedTeaPluginFactory return
ICEDTEA PLUGIN: Factory::GetMIMEDescription
ICEDTEA PLUGIN: Factory::GetMIMEDescription return
ICEDTEA PLUGIN: Factory::GetValue
ICEDTEA PLUGIN: Factory::GetValue return
ICEDTEA PLUGIN: Factory::GetValue
ICEDTEA PLUGIN: Factory::GetValue return
ICEDTEA PLUGIN: Factory::~IcedTeaPluginFactory
DECONSTRUCTING FACTORY
ICEDTEA PLUGIN: Factory::~IcedTeaPluginFactory return
sh: acroread: not found
NSGetFactory called
ICEDTEA PLUGIN: NSGetFactory: Creating factory
ICEDTEA PLUGIN: Factory::IcedTeaPluginFactory
CONSTRUCTING FACTORY
ICEDTEAPLUGIN_DEBUG = 1
ICEDTEA PLUGIN: Factory::IcedTeaPluginFactory return
ICEDTEA PLUGIN: Factory::Initialize
ICEDTEA PLUGIN: Factory::Initialize: using /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/../../bin/java
ICEDTEA PLUGIN: thread manager
ICEDTEA PLUGIN: current thread
Initializing JVM...
ICEDTEA PLUGIN: get component manager
ICEDTEA PLUGIN: liveconnect
ICEDTEA PLUGIN: thread manager
ICEDTEA PLUGIN: Instance::StartAppletviewer
ICEDTEA PLUGIN: get component manager
ICEDTEA PLUGIN: create local file
ICEDTEA PLUGIN: init with path
ICEDTEA PLUGIN: create process
ICEDTEA PLUGIN: init process
ICEDTEA PLUGIN: clearing old input fifo (if any): /home/bugabundo/.icedteaplugin/icedtea-appletviewer-to-plugin
ICEDTEA PLUGIN: creating input fifo: /home/bugabundo/.icedteaplugin/icedtea-appletviewer-to-plugin
ICEDTEA PLUGIN: created input fifo: /home/bugabundo/.icedteaplugin/icedtea-appletviewer-to-plugin
ICEDTEA PLUGIN: got confirmation that appletviewer is running
ICEDTEA PLUGIN: clearing old output fifo (if any): /home/bugabundo/.icedteaplugin/icedtea-plugin-to-appletviewer
ICEDTEA PLUGIN: creating output fifo: /home/bugabundo/.icedteaplugin/icedtea-plugin-to-appletviewer
ICEDTEA PLUGIN: created output fifo: /home/bugabundo/.icedteaplugin/icedtea-plugin-to-appletviewer
ICEDTEA PLUGIN: run process
Listening for transport dt_socket at address: 8787
ICEDTEA PLUGIN: Instance::StartAppletviewer return
ICEDTEA PLUGIN: started appletviewer
ICEDTEA PLUGIN: Factory::Initialize return
ICEDTEA PLUGIN: Factory::CreateSecureEnv
ICEDTEA PLUGIN: JNIEnv::IcedTeaJNIEnv
ICEDTEA PLUGIN: JNIEnv::IcedTeaJNIEnv return
CREATESECUREENV
ICEDTEA PLUGIN: Factory::CreateSecureEnv return
ICEDTEA PLUGIN: Factory::CreateInstance
ICEDTEA PLUGIN: Instance::IcedTeaPluginInstance
ICEDTEA PLUGIN: Instance::IcedTeaPluginInstance return
ICEDTEA PLUGIN: Factory::CreateInstance return
ICEDTEA PLUGIN: Instance::Initialize
TAG FROM BROWSER = instance 1 tag http://loki10.mpi-sws.mpg.de/bb/bittorrent-blocking.php?measure=yes&down=yes&up=yes&port=-1&port2=-2&tcp=yes&duration=10 <applet archive="http://64.9.225.168:19981/BlockingDetector.jar"; code="BlockingDetector" alt="Your Java plugin is not working!" height="40" width="200">
       <param name="ID" value="1233319608">
       <param name="server" value="64.9.225.168">
       <param name="port" value="-1">
       <param name="up" value="true">
       <param name="down" value="true">
       <param name="tcp" value="true">
       <param name="port2" value="-2">
       <param name="duration" value="10">
       <param name="repeat" value="2">
       <param name="cache_option" value="no">
       <param name="cache_version" value="1.0">
       <param name="nextPage" value="loki10.mpi-sws.mpg.de//bb/bittorrent-blocking.php">
       <b style="color: red;">Your Java plugin is not working!</b>
       </applet></embed>
ICEDTEA PLUGIN: Instance::SendMessageToAppletViewer
Writing to JVM: instance 1 tag http://loki10.mpi-sws.mpg.de/bb/bittorrent-blocking.php?measure=yes&down=yes&up=yes&port=-1&port2=-2&tcp=yes&duration=10 <applet archive="http://64.9.225.168:19981/BlockingDetector.jar"; code="BlockingDetector" alt="Your Java plugin is not working!" height="40" width="200">&#10; <param name="ID" value="1233319608">&#10; <param name="server" value="64.9.225.168">&#10; <param name="port" value="-1">&#10; <param name="up" value="true">&#10; <param name="down" value="true">&#10; <param name="tcp" value="true">&#10; <param name="port2" value="-2">&#10; <param name="duration" value="10">&#10; <param name="repeat" value="2">&#10; <param name="cache_option" value="no">&#10; <param name="cache_version" value="1.0">&#10; <param name="nextPage" value="loki10.mpi-sws.mpg.de//bb/bittorrent-blocking.php">&#10; <b style="color: red;">Your Java plugin is not working!</b>&#10; </applet></embed>
Wrote 989 bytes to pipe
ICEDTEA PLUGIN: Instance::SendMessageToAppletViewer return
SETTING PEER!!!: 0x3b3c7b0
DONE SETTING PEER!!!: 0x3b3c7b0
ICEDTEA PLUGIN: Instance::Initialize return
NOT IMPLEMENTED: virtual nsresult IcedTeaPluginInstance::Start()
ICEDTEA PLUGIN: Instance::GetValue
ICEDTEA PLUGIN: Instance::GetValue return
GETTING PEER!!!: 0x3b3c7b0
DONE GETTING PEER!!!: 0x3b3c7b0, 0x3b3c7b0
ICEDTEA PLUGIN: Factory::GetValue
ICEDTEA PLUGIN: Factory::GetValue return
ICEDTEA PLUGIN: Instance::GetValue
ICEDTEA PLUGIN: Instance::GetValue return
ICEDTEA PLUGIN: Instance::SetWindow
ICEDTEA PLUGIN: Instance::SetWindow: setting window.
ICEDTEA PLUGIN: Instance::SendMessageToAppletViewer
Writing to JVM: instance 1 handle 73402143
Wrote 27 bytes to pipe
ICEDTEA PLUGIN: Instance::SendMessageToAppletViewer return
ICEDTEA PLUGIN: Instance::SetWindow return
ICEDTEA PLUGIN: Instance::GetJavaObject
IcedTeaPluginInstance::GetJavaObject: Instance 0x42f2680 waiting for initialization...
ICEDTEA PLUGIN: plugin_in_pipe_callback
Received message: instance 1 status starting applet...
  PIPE: plugin read: instance 1 status starting applet...
ICEDTEA PLUGIN: plugin_in_pipe_callback return
ICEDTEA PLUGIN: Instance::ConsumeMsgFromJVM
received message: instance 1 status starting applet...
Segmentation fault

plesae see the stack trace in the launchpad report.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/5

------------------------------------------------------------------------
On 2009-01-30T13:49:04+00:00 Matthias Klose wrote:

"While running this test http://broadband.mpi-sws.org/transparency
/bttest-mlab.php ..."


Reply at:
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/6

------------------------------------------------------------------------
On 2009-06-30T21:24:10+00:00 Jon-vanalten wrote:

I do not reproduce this segfault with current version.

java -version
java version "1.6.0_0"
OpenJDK Runtime Environment (IcedTea6 1.5) (fedora-22.b16.fc11-x86_64)
OpenJDK 64-Bit Server VM (build 14.0-b15, mixed mode)

I do instead find that the applet times out approx 25% through the long
test, leaving browser intact.  This may be due to the network
environment I am in and the nature of the applet, I will also try from
elsewhere.  If anyone else who was seeing this issue could try with
current build as well that would be great.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/8

------------------------------------------------------------------------
On 2009-07-03T20:48:15+00:00 Jon-vanalten wrote:

I've tried this several more times.  Managed to crash firefox once.
Unfortunately didn't run from the command line that time....

However, I have come to realize something about what happens when it
'times out'.  The web site goes to a page indicating applet timed out,
however the applet keeps on running (java process using high CPU) for
some time before ending.  Tried running from the command line and the
applet seems to terminate normally, and at the end spits out a URL whose
page indicates satisfactory test results.  Not sure yet why the browser
believes it has timed out and doesn't get sent to the URL generated.

I have occasionally had the applet simply fail to load, with output
along the lines of:

<SNIP>
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize applet.
        at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:495)
        at net.sourceforge.jnlp.Launcher.getApplet(Launcher.java:441)
        at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:620)
Caused by: java.lang.NullPointerException
        at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:481)
        ... 2 more
Caused by:
java.lang.NullPointerException
        at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:481)
        at net.sourceforge.jnlp.Launcher.getApplet(Launcher.java:441)
        at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:620)
java.lang.NullPointerException
        at net.sourceforge.jnlp.NetxPanel.runLoader(NetxPanel.java:102)
        at sun.applet.AppletPanel.run(AppletPanel.java:380)
        at java.lang.Thread.run(Thread.java:636)
java.lang.NullPointerException
        at sun.applet.AppletPanel.run(AppletPanel.java:430)
        at java.lang.Thread.run(Thread.java:636)
</SNIP>

I've also been trying this with Sun's Java, and the timeout and failure
to load issues happen there too (albeit with less frequency).

I suppose I should mention that all of this is using Firefox 3.5.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/9

------------------------------------------------------------------------
On 2009-09-30T13:30:05+00:00 Matthias Klose wrote:

this doesn't crash anymore with 1.6.1, but keeps a running java process
at 100% after the connection times out during the test


Reply at: https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/10

------------------------------------------------------------------------
On 2010-06-03T20:14:53+00:00 Asu-3 wrote:

unable to reproduce.
The applet runs for a while then times out. After that, it redirects me to the error page regarding it's timeout. It does not leave a java process running after it has ended, nor has firefox crashed.

java version "1.6.0_17"
OpenJDK Runtime Environment (IcedTea6 1.7.1) (fedora-37.b17.fc13-x86_64)
OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)

My situation is similar to Jon's first comment [1]

[1]http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=290#c2

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/12

------------------------------------------------------------------------
On 2010-07-27T14:23:35+00:00 Matthias Klose wrote:

works for me with the icedtea6 1.8 branch

Reply at:
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/323110/comments/13

-- 
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/323110

Title:
  firefox segfault while using java

Status in OpenJDK:
  Fix Released
Status in “firefox” package in Ubuntu:
  Invalid
Status in “openjdk-6” package in Ubuntu:
  Fix Released

Bug description:
  While running this test http://broadband.mpi-sws.org/transparency/bttest-mlab.php
  the icedted java plugin (64bits) will segfault firefox 3.0 and 3.1

  $ gdb /usr/lib/firefox-3*/firefox
  GNU gdb 6.8-debian
  Copyright (C) 2008 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  This GDB was configured as "x86_64-linux-gnu"...
  (no debugging symbols found)
  (no debugging symbols found)
  (gdb) r
  Starting program: /usr/lib/firefox-3.0.5/firefox 
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  [Thread debugging using libthread_db enabled]
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  (no debugging symbols found)
  [New Thread 0x7fbed2b66700 (LWP 15602)]
  [New Thread 0x7fbec249c950 (LWP 15702)]
  [New Thread 0x7fbec1a91950 (LWP 15703)]
  [New Thread 0x7fbec017e950 (LWP 15704)]
  [Thread 0x7fbec017e950 (LWP 15704) exited]
  [New Thread 0x7fbec017e950 (LWP 15705)]
  [New Thread 0x7fbebf696950 (LWP 15706)]
  [New Thread 0x7fbebee95950 (LWP 15707)]
  [New Thread 0x7fbebd8de950 (LWP 15723)]
  [Thread 0x7fbec017e950 (LWP 15705) exited]
  [New Thread 0x7fbec017e950 (LWP 15724)]
  [Thread 0x7fbec017e950 (LWP 15724) exited]
  [New Thread 0x7fbec017e950 (LWP 15725)]
  [New Thread 0x7fbeb7df9950 (LWP 15726)]
  [Thread 0x7fbeb7df9950 (LWP 15726) exited]
  [New Thread 0x7fbeb7df9950 (LWP 15792)]
  sh: acroread: not found
  [New Thread 0x7fbeb47ed950 (LWP 15847)]
  [New Thread 0x7fbeb3fec950 (LWP 15848)]

  Program received signal SIGSEGV, Segmentation fault.
  [Switching to Thread 0x7fbeb47ed950 (LWP 15847)]
  XPCJSContextStack::Pop (this=0x5230010, _retval=<value optimized out>) at xpcthreadcontext.cpp:111
  111	xpcthreadcontext.cpp: No such file or directory.
  	in xpcthreadcontext.cpp
  Current language:  auto; currently c++
  (gdb) bt full
  #0  XPCJSContextStack::Pop (this=0x5230010, _retval=<value optimized out>) at xpcthreadcontext.cpp:111
  	e = (XPCJSContextInfo &) @0x180522fff8: <error reading variable>
  	idx = <value optimized out>
  #1  0x00007fbed0212207 in ~XPCCallContext (this=0x7fbeb47ec6b0) at xpccallcontext.cpp:333
  	stack = (class XPCJSContextStack *) 0x5230018
  #2  0x00007fbed0229d8b in nsXPCWrappedJSClass::CallMethod (this=0x2d7c020, wrapper=<value optimized out>, methodIndex=3, 
      info=0xe64850, nativeParams=0x7fbeb47ec820) at xpcwrappedjsclass.cpp:1775
  	stackbase = (jsval *) 0x526f088
  	sp = (jsval *) 0x526f0a0
  	i = 1 '\001'
  	argc = 1 '\001'
  	stack_size = <value optimized out>
  	result = -2147483647
  	paramCount = 1 '\001'
  	retval = 0
  	success = <value optimized out>
  	readyToDoTheCall = 1
  	param_iid = {m0 = 0, m1 = 0, m2 = 0, m3 = "\000\000\000\000\000\000\000"}
  	outConversionFailedIndex = <value optimized out>
  	name = 0xe648b0 "setJSStatus"
  	fval = 22929984
  	mark = (void *) 0x526f078
  	foundDependentParam = 0
  	xpcc = (XPCContext *) 0x5278ab0
  	cx = (JSContext *) 0x525f640
  	thisObj = (JSObject *) 0x301d7c0
  	context = <value optimized out>
  	ccx = {<nsAXPCNativeCallContext> = {_vptr.nsAXPCNativeCallContext = 0x7fbed0f9dff0}, 
    mState = XPCCallContext::HAVE_CONTEXT, mXPC = 0x8c1aa0, mThreadData = 0x52742d0, mXPCContext = 0x5278ab0, 
  ---Type <return> to continue, or q <return> to quit---
    mJSContext = 0x525f640, mContextPopRequired = 1, mDestroyJSContextInDestructor = 0, 
    mCallerLanguage = XPCContext::LANG_NATIVE, mPrevCallerLanguage = XPCContext::LANG_UNKNOWN, mPrevCallContext = 0x0, 
    mOperandJSObject = 0x0, mCurrentJSObject = 0x0, mFlattenedJSObject = 0x0, mWrapper = 0x0, mTearOff = 0x0, 
    mScriptableInfo = 0x0, mSet = 0x0, mInterface = 0x0, mMember = 0x0, mName = 0, mStaticMemberIsLocal = 0, mArgc = 0, 
    mArgv = 0x0, mRetVal = 0x0, mExceptionWasThrown = 0, mReturnValueWasSet = 0, mMethodIndex = 0, mCallee = 0x15de240, 
    mStringWrapperData = '\0' <repeats 47 times>}
  	scriptEval = {mJSContext = 0x525f640, mState = 0x0, mOldErrorReporter = 0, mEvaluated = 1, 
    mContextHasThread = 86457904}
  	kungFuDeathGrip = {<nsCOMPtr_base> = {mRawPtr = 0x2d7c020}, <No data fields>}
  	format = "%s \"%s\""
  #3  0x00007fbed098f515 in PrepareAndDispatch (self=0x302f4c0, methodIndex=<value optimized out>, args=0x7fbeb47ec920, 
      gpregs=0x7fbeb47ec920, fpregs=0x7fbeb47ec950) at xptcstubs_x86_64_linux.cpp:151
  	paramBuffer = {{val = {i8 = -16 '�', i16 = -13840, i32 = -1266759184, i64 = 140457048721904, u8 = 240 '�', 
        u16 = 51696, u32 = 3028208112, u64 = 140457048721904, f = -2.37290578e-07, d = 6.9395002489742932e-310, 
        b = -1266759184, c = -16 '�', wc = 51696, p = 0x7fbeb47ec9f0}}, {val = {i8 = 0 '\0', i16 = 0, i32 = 0, i64 = 0, 
        u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\0', wc = 0, p = 0x0}}, {val = {i8 = 0 '\0', 
        i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\0', wc = 0, p = 0x0}}, 
    {val = {i8 = 0 '\0', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\0', 
        wc = 0, p = 0x0}}, {val = {i8 = 0 '\0', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, 
        d = 0, b = 0, c = 0 '\0', wc = 0, p = 0x0}}, {val = {i8 = 127 '\177', i16 = -21633, i32 = -795235457, 
        i64 = 140457520245631, u8 = 127 '\177', u16 = 43903, u32 = 3499731839, u64 = 140457520245631, f = -2.06252257e+10, 
        d = 6.9395235453417642e-310, b = -795235457, c = 127 '\177', wc = 43903, p = 0x7fbed099ab7f}}, {val = {i8 = 0 '\0', 
        i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\0', wc = 0, p = 0x0}}, 
    {val = {i8 = -48 '�', i16 = -13616, i32 = -1266758960, i64 = 140457048722128, u8 = 208 '�', u16 = 51920, u32 = 3028208336, 
        u64 = 140457048722128, f = -2.37293762e-07, d = 6.9395002489853603e-310, b = -1266758960, c = -48 '�', wc = 51920, 
        p = 0x7fbeb47ecad0}}, {val = {i8 = 18 '\022', i16 = 18, i32 = 18, i64 = 18, u8 = 18 '\022', u16 = 18, u32 = 18, 
        u64 = 18, f = 2.52233724e-44, d = 8.8931816251424378e-323, b = 18, c = 18 '\022', wc = 18, p = 0x12}}, {val = {
        i8 = 18 '\022', i16 = 18, i32 = 18, i64 = 18, u8 = 18 '\022', u16 = 18, u32 = 18, u64 = 18, f = 2.52233724e-44, 
        d = 8.8931816251424378e-323, b = 18, c = 18 '\022', wc = 18, p = 0x12}}, {val = {i8 = 0 '\0', i16 = 0, i32 = 0, 
  ---Type <return> to continue, or q <return> to quit---
        i64 = 0, u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\0', wc = 0, p = 0x0}}, {val = {
        i8 = 40 '(', i16 = -20696, i32 = -795234520, i64 = 140457520246568, u8 = 40 '(', u16 = 44840, u32 = 3499732776, 
        u64 = 140457520246568, f = -2.06271447e+10, d = 6.9395235453880581e-310, b = -795234520, c = 40 '(', wc = 44840, 
        p = 0x7fbed099af28}}, {val = {i8 = 11 '\v', i16 = 11, i32 = 11, i64 = 77309411339, u8 = 11 '\v', u16 = 11, u32 = 11, 
        u64 = 77309411339, f = 1.54142831e-44, d = 3.8195924242809624e-313, b = 11, c = 11 '\v', wc = 11, p = 0x120000000b}}, {
      val = {i8 = 0 '\0', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\0', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\0', 
        wc = 0, p = 0x0}}, {val = {i8 = -92 '�', i16 = -12892, i32 = -1416835676, i64 = 2878131620, u8 = 164 '�', u16 = 52644, 
        u32 = 2878131620, u64 = 2878131620, f = -1.0004675e-12, d = 1.4219859576514132e-314, b = -1416835676, c = -92 '�', 
        wc = 52644, p = 0xab8ccda4}}, {val = {i8 = -48 '�', i16 = -13616, i32 = -1266758960, i64 = 140457048722128, 
        u8 = 208 '�', u16 = 51920, u32 = 3028208336, u64 = 140457048722128, f = -2.37293762e-07, d = 6.9395002489853603e-310, 
        b = -1266758960, c = -48 '�', wc = 51920, p = 0x7fbeb47ecad0}}}
  	dispatchParams = (nsXPTCMiniVariant *) 0x7fbeb47ec820
  	info = (const nsXPTMethodInfo *) 0xe64850
  	paramCount = 1
  	i = 4294967295
  	result = <value optimized out>
  	ap = <value optimized out>
  	nr_gpr = 24
  	nr_fpr = 1
  	value = <value optimized out>
  #4  0x00007fbed098e9c3 in SharedStub () from /usr/lib/xulrunner-1.9.0.5/libxul.so
  No locals.
  #5  0x00007fbed0765d42 in nsContentTreeOwner::SetStatusWithContext (this=0x289e820, aStatusType=<value optimized out>, 
      aStatusText=@0x7fbeb47ec9f0, aStatusContext=0x0) at nsContentTreeOwner.cpp:452
  	xulBrowserWindow = {<nsCOMPtr_base> = {mRawPtr = 0x302f4c0}, <No data fields>}
  #6  0x00007fbed0766e5e in nsContentTreeOwner::SetStatus (this=0x289e820, aStatusType=1, aStatus=<value optimized out>)
      at nsContentTreeOwner.cpp:479
  No locals.
  #7  0x00007fbed03adb5d in nsPluginInstanceOwner::ShowStatus (this=<value optimized out>, aStatusMsg=0x7fbeb47ecaf0)
  ---Type <return> to continue, or q <return> to quit---
      at nsObjectFrame.cpp:2374
  	rv = 0
  	cont = {<nsCOMPtr_base> = {mRawPtr = 0x289dd08}, <No data fields>}
  	docShellItem = {<nsCOMPtr_base> = {mRawPtr = 0x289ddf8}, <No data fields>}
  	treeOwner = {<nsCOMPtr_base> = {mRawPtr = 0x289e820}, <No data fields>}
  	browserChrome = {<nsCOMPtr_base> = {mRawPtr = 0x289e838}, <No data fields>}
  #8  0x00007fbed03adbf5 in nsPluginInstanceOwner::ShowStatus (this=0x52859b0, aStatusMsg=0x529d018 "starting applet...")
      at nsObjectFrame.cpp:2341
  	rv = <value optimized out>
  #9  0x00007fbeb7053f2f in IcedTeaPluginFactory::HandleMessage ()
     from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
  No symbol table info available.
  #10 0x00007fbeb7056c5e in IcedTeaPluginFactory::ConsumeMsgFromJVM ()
     from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
  No symbol table info available.
  #11 0x00007fbeb7056df3 in IcedTeaPluginFactory::ProcessMessage ()
     from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
  No symbol table info available.
  #12 0x00007fbeb706516a in IcedTeaRunnableMethod<IcedTeaPluginFactory>::Run ()
     from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/IcedTeaPlugin.so
  No symbol table info available.
  #13 0x00007fbed098463e in nsThread::ProcessNextEvent (this=0x523a690, mayWait=1, result=0x7fbeb47ed08c) at nsThread.cpp:510
  	notifyGlobalObserver = 1
  	obs = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}
  	event = {<nsCOMPtr_base> = {mRawPtr = 0x523a660}, <No data fields>}
  	rv = 0
  #14 0x00007fbed09598fe in NS_ProcessNextEvent_P (thread=0x5230018, mayWait=1) at nsThreadUtils.cpp:227
  	val = <value optimized out>
  #15 0x00007fbed0984cba in nsThread::ThreadFunc (arg=<value optimized out>) at nsThread.cpp:253
  ---Type <return> to continue, or q <return> to quit---
  	self = (nsThread *) 0x523a690
  	event = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}
  #16 0x00007fbed1169cb3 in _pt_root (arg=<value optimized out>) at ptthread.c:221
  	thred = (PRThread *) 0x5273e30
  	detached = 0
  #17 0x00007fbed275d3ba in start_thread () from /lib/libpthread.so.0
  No symbol table info available.
  #18 0x00007fbed1b1c0ad in clone () from /lib/libc.so.6
  No symbol table info available.
  #19 0x0000000000000000 in ?? ()
  No symbol table info available.
  (gdb)

  ProblemType: Bug
  Architecture: amd64
  DistroRelease: Ubuntu 9.04
  NonfreeKernelModules: nvidia
  Package: icedtea6-plugin 6b14-0ubuntu10
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: openjdk-6
  Uname: Linux 2.6.28-6-generic x86_64

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References