Name: kaC94536 Date: 12/21/99


The following test crashes Linux JDK 1.2.2 VM with JIT enabled. The test tries
twice to divide one long variable by another long variable that is equal to
zero. Note that division executes inside void foo. First division raises
ArithmeticException, but second division crashes VM.
The test passes under Linux JDK 1.2.2 VM with JIT disabled as well as under
Solaris JDK 1.2.2 VM.
Bug affects test misc/jit_tests/t093 from testbase_ss.
The bug #4296564 with similar test for int zero divisor was fixed.
---------------------------- test.java ------------------------------------
public class test {
  static long i, j;
  static void foo() {
    i /= j;
  }
  public static void main(String argv[]) {
    try {
       foo();
    } catch(ArithmeticException x) {
       System.out.println("Oops!");
    }
    try {
       foo();
    } catch(ArithmeticException x) {
       System.out.println("OK");
    }
  }
}
----------------------------- output --------------------------------------
[kdos@linux-1]$ java -fullversion
java full version "1.2.2-RC2-J"
[kdos@linux-1]$ java -Xfuture -Djava.compiler=NONE test
Oops!
OK
[kdos@linux-1]$ java -Xfuture -Djava.compiler=javacomp test
Oops!
SIGFPE 8* arithmetic exception
    si_signo [8]: SIGFPE 8* arithmetic exception
    si_errno [0]: Success
    si_code [0]: SI_USER [pid: 0, uid: 0]
        stackpointer=0xbffff6d4

Full thread dump Classic VM (1.2.2-RC2-J, green threads):
    "Finalizer" (TID:0x40e95320, sys_thread_t:0x81080f0, state:CW) prio=8
        at java.lang.Object.wait(Native Method)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:112)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:174)
    "Reference Handler" (TID:0x40e953b0, sys_thread_t:0x81033a0, state:CW)
prio=10
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:424)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:114)
    "Signal dispatcher" (TID:0x40e953e0, sys_thread_t:0x81014e8, state:CW)
prio=5
    "main" (TID:0x40e951e0, sys_thread_t:0x804c358, state:R) prio=5
        at test.main(test.java:13)
Monitor Cache Dump:
    java.lang.ref.Reference$Lock@40E953C0/40ECAB20: <unowned>
        Waiting to be notified:
            "Reference Handler" (0x81033a0)
    java.lang.ref.ReferenceQueue$Lock@40E95338/40ECB028: <unowned>
        Waiting to be notified:
            "Finalizer" (0x81080f0)
Registered Monitor Dump:
    Invoker change lock: <unowned>
    utf8 hash table: <unowned>
    JNI pinning lock: <unowned>
    JNI global reference lock: <unowned>
    BinClass lock: <unowned>
    Class linking lock: <unowned>
    System class loader lock: <unowned>
    Code rewrite lock: <unowned>
    Heap lock: <unowned>
    Monitor cache lock: owner "main" (0x804c358) 1 entry
    Dynamic loading lock: <unowned>
    Monitor IO lock: <unowned>
    User signal monitor: <unowned>
        Waiting to be notified:
            "Signal dispatcher" (0x81014e8)
    Child death monitor: <unowned>
    I/O monitor: <unowned>
    Alarm monitor: <unowned>
        Waiting to be notified:
            <unknown thread> (0x80577c0)
    Thread queue lock: owner "main" (0x804c358) 1 entry
    Monitor registry: owner "main" (0x804c358) 1 entry

[kdos@linux-1]$

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