Deadlock while running SPECjbb2013

[Lokesh Gidra]

Hello,

I am trying to experiment SPECjbb2013 on a 48-core AMD machine with the following command line options on OpenJDK7 build 147:

-XX:ParallelGCThreads=46 -Xms8g -Xmx8g -XX:+UseParallelOldGC -XX:+DisableExplicitGC -XX:-UseLargePages -XX:-UseCompressedOops

The execution hangs sometimes. When I attached the process to gdb, found that the GC threads are stuck in the marking phase of Old generation collection. The bug also hits with lesser GC threads. I am wondering if this is a known issue.

Regards,
Lokesh
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