James' JVM Crashing: Unexpected Signal : 11

[Theodore Watson <te...@mindbridge.com>]

I've been experiencing a lot of "OutOfMemory" errors on retrievals of large 
inboxes and I allocated a larger heap to the JVM with this modification of 
phoenix.sh:

JVM_OPTS="-server -Xms128m -Xmx256m -Djava.ext.dirs=$PHOENIX_HOME/lib"

Since I made this change, my server has been experiencing at least daily JVM 
crashes with the following error (I removed the list of dynamic libraries, 
but the full error is attached):

Unexpected Signal : 11 occurred at PC=0x40552ADD
Function=(null)+0x40552ADD
Library=/usr/lib/jvm/java-1.4.2-sun-1.4.2.06/jre/lib/i386/server/libjvm.so

NOTE: We are unable to locate the function name symbol for the error
 just occurred. Please refer to release documentation for possible
 reason and solutions.



Dynamic libraries:
...

Heap at VM Abort:
Heap
 def new generation total 13312K, used 13311K [0x44920000, 0x45790000, 0x46590
000)
 eden space 11840K, 99% used [0x44920000, 0x454affe0, 0x454b0000)
 from space 1472K, 100% used [0x45620000, 0x45790000, 0x45790000)
 to space 1472K, 16% used [0x454b0000, 0x454ec060, 0x45620000)
 tenured generation total 116544K, used 94944K [0x46590000, 0x4d760000, 
0x54920000)
 the space 116544K, 81% used [0x46590000, 0x4c248218, 0x4c248400, 0x4d760000)
 compacting perm gen total 16384K, used 7407K [0x54920000, 0x55920000, 
0x58920000)
 the space 16384K, 45% used [0x54920000, 0x5505bd48, 0x5505be00, 0x55920000)

Local Time = Wed Jun 8 01:44:03 2005
Elapsed Time = 32461
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002EF
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Server VM (1.4.2_06-b03 mixed mode)
#
# An error report file has been saved as hs_err_pid1723.log.
# Please refer to the file for further information.
#
Read from remote host pop3: Connection reset by peer


Is the new heap size causing this?  If so, are there any other solutions to 
the OutOfMemory errors?

Ted

Re: James' JVM Crashing: Unexpected Signal : 11

[Danny Angus <da...@gmail.com>]

Ted,

On 08/06/05, Theodore Watson <te...@mindbridge.com> wrote:
> I've been experiencing a lot of "OutOfMemory" errors on retrievals of large
> inboxes and I allocated a larger heap to the JVM with this modification of
> phoenix.sh:


We've been having this same error at work, not with James, but we have
bought Sun support <smug grin>, I'm not sure how much I can pass on
that I learned through the commercial support however I don't think
the following is much of a secret..
It looks like a bug in the JVM, "6206441 HotSpot compiler error (Error
ID : 4F530E43505002EF 01) when upload large files " (I got this
description from the public bug listed below) but it isn't in the
public bug db.
Apparently they _hope_ it will be fixed in next or subsequent versions
of java 5 & 1.4.2

In the meantime you're looking for a workaround. It isn't fixed in the
latest versions as of today.

read this public bug which seems to be related.
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4946706

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RE: James' JVM Crashing: Unexpected Signal : 11

["Noel J. Bergman" <no...@devtech.com>]

You might want to follow their instructions:

  # HotSpot Virtual Machine Error : 11
  # Error ID : 4F530E43505002EF
  # Please report this error at
  # http://java.sun.com/cgi-bin/bugreport.cgi
  #
  # Java VM: Java HotSpot(TM) Server VM (1.4.2_06-b03 mixed mode)

And you might want to upgrade to a more recent JVM or turn off -server.

	--- Noel

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