Hi Juan Antonio, > -----Original Message----- > From: b...@juanantonio.info [mailto:b...@juanantonio.info] > > Good night David, > > It is the first time that I report a Bug on OpenJDK and I didn´t receive any > notification so I didn´t know the status of the Issue that I reported.
Yes, there was some issue in the notification server, no emails sent to bug submitters. Generally you will receive e-mail, once issue is created in JDK. Sorry about this. Thanks David for pointing out the JDK issue. Thanks, Fairoz > > Many thanks with the link about the Platforms supported: > http://www.oracle.com/technetwork/java/javase/documentation/jdk10cert > config-4417031.html > > We will try to do Compilation with the solution. > > --- a/src/hotspot/cpu/arm/vm_version_arm_32.cpp > +++ b/src/hotspot/cpu/arm/vm_version_arm_32.cpp > @@ -298,6 +298,15 @@ > FLAG_SET_DEFAULT(UseUnalignedAccesses, false); > } > > + if (arm_arch() == 5) { > + if (FLAG_IS_DEFAULT(AssumeMP)) { > + FLAG_SET_DEFAULT(AssumeMP, false); > + else if (AssumeMP) { > + warning("AssumeMP can not be true for ARMv5 as there is only > uniprocessor support"); > + FLAG_SET_DEFAULT(AssumeMP, false); > + } > + } > + > _is_initialized = true; > } > > Runtime workaround: java -XX:-AssumeMP > > In our case, I would like to continue maintaining this support for the Device. > What is the advice that you could give us? > What is AssumeMP? > > For education, this device is pretty interesting for the whole Java community, > this is the reason. > > I will inform with the results. > > Many thanks in advance. > > Cheers > > Juan Antonio > > El 2018-04-05 00:12, David Holmes escribió: > > Hi, > > > > This was already reported as: > > > > https://bugs.openjdk.java.net/browse/JDK-8200580 > > > > to which I have responded and closed the bug as this is not a > > supported platform. > > > > As per the bug report this may be due to the change to AssumeMP to be > > true, but there is no MP support for ARMv5. > > > > David > > > > On 4/04/2018 8:29 PM, b...@juanantonio.info wrote: > >> Good morning, > >> > >> Mi name is Juan Antonio Breña Moral, I am developing a set of Java > >> libraries for Lego Mindstorms EV3, an ARM5 robotics device and > >> recently, we build OpenJDK 9 with success but with OpenJDK 10, we > >> have found some problems when we execute some Java programs. > >> > >> Repository to build OpenJDK 9/10 for ARM5 Soft Float: > >> https://github.com/ev3dev-lang-java/openjdk-ev3 > >> > >> To test the JVM, I am using the following repo to test the VM: > >> https://github.com/ev3dev-lang-java/vmbenchmarks > >> > >> And this is the output with the error: > >> > >> robot@ev3dev:~$ java -jar benchmarks.jar -f 1 > >> WARNING: An illegal reflective access operation has occurred > >> WARNING: Illegal reflective access by org.openjdk.jmh.util.Utils > >> (file:/home/robot/benchmarks.jar) to field java.io.Console.cs > >> WARNING: Please consider reporting this to the maintainers of > >> org.openjdk.jmh.util.Utils > >> WARNING: Use --illegal-access=warn to enable warnings of further > >> illegal reflective access operations > >> WARNING: All illegal access operations will be denied in a future > >> release =============== DEBUG MESSAGE: Atomic load(jlong) > unsupported > >> on this platform ================ > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> =============== DEBUG MESSAGE: Atomic load(jlong) unsupported on > this > >> platform ================ > >> > >> [thread 4430 also had an error] > >> [error occurred during error reporting ((null)), id 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing fatal error > >> message), id 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing type of error), id > >> 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing stack bounds), id > >> 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing native stack), id > >> 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing Java stack), id > >> 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing target Java thread > >> stack), id 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing siginfo), id > >> 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (CDS archive access warning), > >> id 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [error occurred during error reporting (printing register info), id > >> 0xe0000000] > >> > >> =============== DEBUG MESSAGE: Atomic store(jlong) unsupported > on > >> this platform ================ > >> > >> > >> [Too many errors, abort] > >> Aborted > >> > >> I think that in OpenJDK10 changed something in compare to OpenJDK9 in > >> relation to ARM5 support. > >> > >> Any idea? > >> > >> Many thanks in advance. > >> > >> Cheers > >> > >> Juan Antonio > >>