VM crash

[Nick Johnson]

This is the first VM crash I've had in ages, but the last four times were 
also caused during a System.arraycopy at the same PC.  I've munged the 
proprietary information a bit; I don't think the crash had to do with that 
code.  The line it was executing at the time was this:

      data.append(String.valueOf(System.currentTimeMillis()));

("data" is a poorly-name StringBuffer)

java version "1.4.2-p6"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-p6-spatula_21_apr_2004_14_05)
Java HotSpot(TM) Client VM (build 1.4.2-p6-spatula_21_apr_2004_14_05, mixed mode)

Running with this command line:
/usr/local/jdk14/bin/java -server -Djava.net.preferIPv4Stack=true -Xmx384m -Xms384m -verbosegc -XX:+PrintGCDetails -XX:NewSize=192m -XX:PermSize=16m -showversion -XX:+UseConcMarkSweepGC

Following are the error log and the stack trace.

Unexpected Signal : 11 occurred at PC=0x2864972E
Function=_ZN14typeArrayKlass10copy_arrayEP12arrayOopDesciS1_iiP6Thread+0x1E
Library=/web/contrib/java-p6/control/build/bsd-i586/lib/i386/server/libjvm.so

Current Java thread:
         at java.lang.System.arraycopy(Native Method)
         at java.lang.String.<init>(String.java:201)
         at java.lang.Long.toString(Long.java:237)
         at java.lang.Long.toString(Long.java:93)
         at java.lang.String.valueOf(String.java:2250)
         at net.spatula.news.x.x(x.java:73)
         at net.spatula.news.x.x(x.java:60)
         at _errors._errmsg__jsp._jspService(_errmsg__jsp.java:38)
         at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
         at com.caucho.jsp.Page.subservice(Page.java:506)
         at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
         at com.oreilly.javaxslt.util.StylesheetFilter.doFilter(Unknown Source)
         at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
         at net.spatula.news.x.x(x.java:41)
         at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
         at com.caucho.server.http.Invocation.service(Invocation.java:315)
         at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:346)
         at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:274)
         at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
         at java.lang.Thread.run(Thread.java:534)

Dynamic libraries:
0x8048000       /usr/local/jdk14/bin/java
0x2806c000      /usr/lib/libc_r.so.4
0x28123000      /web/contrib/java-p6/control/build/bsd-i586/lib/i386/server/libjvm.so
0x28787000      /usr/lib/libm.so.2
0x287a2000      /web/contrib/java-p6/control/build/bsd-i586/lib/i386/native_threads/libhpi.so
0x287b0000      /web/contrib/java-p6/control/build/bsd-i586/lib/i386/libverify.so
0x287c2000      /web/contrib/java-p6/control/build/bsd-i586/lib/i386/libjava.so
0x287e1000      /web/contrib/java-p6/control/build/bsd-i586/lib/i386/libzip.so
0x4d489000      /web/resin-2.1.13/libexec/libresin.so
0x4d48e000      /usr/lib/libssl.so.3
0x4d4bd000      /usr/lib/libcrypto.so.3
0x4d5b4000      /web/contrib/java-p6/control/build/bsd-i586/lib/i386/libnet.so
0x2804e000      /usr/libexec/ld-elf.so.1

Heap at VM Abort:
Heap
  def new generation   total 196480K, used 78509K [0x2c580000, 0x38580000, 0x38580000)
   eden space 196352K,  39% used [0x2c580000, 0x3122b6e0, 0x38540000)
   from space 128K,   0% used [0x38560000, 0x38560000, 0x38580000)
   to   space 128K,   0% used [0x38540000, 0x38540000, 0x38560000)
  concurrent mark-sweep generation total 196608K, used 77800K [0x38580000, 0x44580000, 0x44580000)
  concurrent-mark-sweep perm gen total 16384K, used 12972K [0x44580000, 0x45580000, 0x48580000)

Local Time = Sat Apr 30 23:10:44 2005
Elapsed Time = 84298
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002F1
# Please report this error to
# freebsd-java at FreeBSD.org mailing list
#

Here's the stack dump from gdb (ignoring the part that handled the signal)

#7  0x280bd586 in _thread_sig_handler () from /usr/lib/libc_r.so.4
#8  0xbfbfffac in ?? ()
#9  0x28502516 in JVM_ArrayCopy () from /web/contrib/java-p6/control/build/bsd-i586/lib/i386/server/libjvm.so
#10 0x2a52f7a8 in ?? ()
#11 0x00000014 in ?? ()
#12 0x4458e5e0 in ?? ()
Cannot access memory at address 0x1

    Nick

-- 
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Nick Johnson, version 2.1                             http://web.morons.org/