On Thu, 20 Jan 2022 20:11:43 GMT, Xin Liu wrote:
>> src/hotspot/os/posix/signals_posix.cpp line 600:
>>
>>> 598: assert(!ReduceSignalUsage, "Should not happen with
>>> -Xrs/-XX:+ReduceSignalUsage");
>>> 599: signal_was_handled = true;
>>> 600: }
>>
>> Can't we just do this as the ver
On Fri, 21 Jan 2022 09:00:49 GMT, David Holmes wrote:
>> hi, David and Thomas,
>>
>> I am nervous about this change. It's not complex but I don't want to break
>> the existing java applications. Bear with me.
>>
>> From my reading, HotSpot can chain a user-custom signal handler because of
>
On Tue, 18 Jan 2022 19:36:18 GMT, Chris Plummer wrote:
>> While working on JDK-8280003, I noticed that
>> java/lang/instrument/GetObjectSizeIntrinsicsTest.java does not test arrays
>> with more than 1-byte size elements, and no large arrays (past 4G limit) are
>> tested either. It would be bet
> While working on JDK-8280003, I noticed that
> java/lang/instrument/GetObjectSizeIntrinsicsTest.java does not test arrays
> with more than 1-byte size elements, and no large arrays (past 4G limit) are
> tested either. It would be better to add those test cases.
>
> Additional testing:
> - [
On Fri, 21 Jan 2022 09:52:22 GMT, Thomas Stuefe wrote:
>> Hi Xin,
>> Signal chaining doesn't work for BREAK_SIGNAL - from the signal chaining
>> docs:
>>
>>
>> Note:
>>
>> The SIGQUIT, SIGTERM, SIGINT, and SIGHUP signals cannot be chained. If the
>> application must
>> handle these signals,
Changes:
- ClassFileReconstituter is updated to restore "MethodParameters" attribute;
- handling of the attribute in VM_RedefineClasses is moved to be consistent
with other code (like local variable table);
- copied ClassTransformer class (from test/jdk/com/sun/jdi/lib/jdb) to
/test/lib as it's u
On Fri, 21 Jan 2022 11:04:26 GMT, Aleksey Shipilev wrote:
>> While working on JDK-8280003, I noticed that
>> java/lang/instrument/GetObjectSizeIntrinsicsTest.java does not test arrays
>> with more than 1-byte size elements, and no large arrays (past 4G limit) are
>> tested either. It would be
On Fri, 21 Jan 2022 15:40:07 GMT, Alex Menkov wrote:
> Changes:
> - ClassFileReconstituter is updated to restore "MethodParameters" attribute;
> - handling of the attribute in VM_RedefineClasses is moved to be consistent
> with other code (like local variable table);
> - copied ClassTransformer
> In early stage of initialization, HotSpot doesn't handle SIGQUIT. The default
> signal preposition on Linux is to quit the process and generate coredump.
>
> There are 2 applications for this signal.
> 1. There's a handshake protocol between sun.tools.attach and HotSpot.
> VirtualMachineImpl
