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From "Eugene S. Ostrovsky (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3381) [drlvm][shutdown] unsafe termination of daemon threads
Date Tue, 13 Mar 2007 12:03:11 GMT
[drlvm][shutdown] unsafe termination of daemon threads
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                 Key: HARMONY-3381
                 URL: https://issues.apache.org/jira/browse/HARMONY-3381
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Eugene S. Ostrovsky


vm_shutdown_stop_java_threads() function tries to terminate daemon threads by setting TheadDeath
exception to them and interrupting in infinite loop.
1. There's a race condition in this algorithm: No one can guarantee that continuous setting
TheadDeath exception to a thread will force it to terminate.
2. TheadDeath is throwing in the points that may not be safe for exception throwing. This
may lead to vm crash (or assertion). 
( Such crash was reproduced on win/ia32 on gc.Mark smoke test with the patch from HARMONY-3297)

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