Deadlock while running SPECjbb2013

[Lokesh Gidra]

Its on Linux 3.0.0

It also causes out of memory at the given configuration, whereas I have successfully managed to complete the test with 4G heap. So not really sure what is causing these deadlocks/OOMs.

Lokesh


>________________________________
> From: Jon Masamitsu <jon.masamitsu at oracle.com>
>To: hotspot-gc-dev at openjdk.java.net 
>Sent: Wednesday, 24 April 2013 4:16 PM
>Subject: Re: Deadlock while running SPECjbb2013
> 
>
>
>I don't think we've seen this.  What OS?
>
>I can create a bug report for this.  Please send the info needed to
>reproduce it.
>
>Thanks.
>
>Jon
>
>
>On 4/23/13 4:59 AM, Lokesh Gidra wrote:
>
>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
>
>
>