Re: divide by zero in sleep

Sounds like a jvm bug. Can you try a different version of the jvm?

Asa Hardcastle wrote:
> Hello,
>
> I am running openjms 0.7.6.1 on several mac os x Tiger machines  
> (running intel core duos).  One is running the server and others are  
> using the client library.  All three are receiving a java native  
> crash that can be tracked down to the "Clock.java" class, and more  
> specifically "sleep(_unsynchTicks);" in the run class.
>
>      public void run() {
>          while (true) {
>              try {
>                  for (int i = 0; i < _synchEvery; ++i) {
>                      sleep(_unsynchTicks);
>                      synchronized (Clock.class) {
>                          _clock += _unsynchTicks + _adjust;
>                      }
>                  }
>                  synchronize();
>              } catch (Throwable exception) {
>                  _log.error("Internal error in clock daemon",  
> exception);
>              }
>          }
>      }
>
>
> What happens is that I get a fatal crash that kills the JVM and  
> reports the following in the java native crash log:
>
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.exolab.jms.util.Clock.run(Clock.java:210)
>
>
> in the java log I get:
>
> Exception:  EXC_ARITHMETIC (0x0003)
> Codes:      EXC_I386_DIV (divide by zero)
>
> Apparently a PPC chip would not have a fatal error on a divide by zero.
>
> This crash is intermittent and does not seem to follow any pattern,  
> other than it happens a few times a week.
>
> Any help would be greatly appreciated.
>
> thanks,
>
> asa
>
>
>
>
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>   

Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642