C2 compiler gets SIGILL/ILL_ILLOPC

[Andrey Petushkov]

Hi Simon,

The discussed problem only concerns server VM. There is no use of pldw in the client VM at all. 
Although I cannot tell if there are incorrect usages of the os::is_MP() in the client VM code for arm32 port

Regards,
Andrey

> On 3 May 2018, at 23:21, Simon Nash <simon at cjnash.com> wrote:
> 
> On 03/05/2018 17:00, Andrey Petushkov wrote:
>> Hi John,
>>> On 3 May 2018, at 18:51, John Neffenger <john at status6.com> wrote:
>>> 
>>> On 05/03/2018 02:36 AM, Andrey Petushkov wrote:
>>>> The -XX:-AssumeMP command line option should help in your case
>>> Magic! That helps a lot. Thank you, Andrey.
>> Glad to hear :)
>>> The warning message makes me a bit nervous, though.
>> You can safely ignore it for a meanwhile. It will strike in Java 12 though (https://bugs.openjdk.java.net/browse/JDK-8188764 <https://bugs.openjdk.java.net/browse/JDK-8188764>). (And I find it strange to decide that Java from now on only runs on multiprocessor devices. Anyway..)
> 
> Is this MP-only assumption only for the server VM or also for the 32-bit client VM?
> The latter would prevent my application from being able to run on Java 12.
> 
> Simon
> 
>>> $ ./opt/jre-10/bin/java -XX:-AssumeMP -jar lib/hellojdk.jar
>>> OpenJDK Server VM warning: Option AssumeMP was deprecated in version 10.0 and will likely be removed in a future release.
>>> Hello World!
>>> Hello World!
>>> Hello World!
>>> 
>>> $ ./opt/jre-11/bin/java -XX:-AssumeMP -jar lib/hellojdk.jar
>>> OpenJDK Server VM warning: Option AssumeMP was deprecated in version 10.0 and will likely be removed in a future release.
>>> Hello World!
>>> Hello World!
>>> Hello World!
>>> 
>>> Should I open a bug report?
>> I’m pretty sure the problem deserves it
>> Thank you,
>> Andrey
>>> Thank you,
>>> John
>