I've updated the webrev for CR#6860309 using a CountDownLatch. The main thread will wait til both worker threads are ready to block on the read() before the process is destroyed.
http://cr.openjdk.java.net/~gadams/6860309/ Tested with -Xcomp, but still may need a older slow solaris/sparc machine to confirm the fix works for the original bug submitter.
