On Mon, 13 Jan 2025 11:06:36 GMT, Maurizio Cimadamore <mcimadam...@openjdk.org>
wrote:
>> Per Minborg has updated the pull request incrementally with two additional
>> commits since the last revision:
>>
>> - Clean up benchmark
>> - Fix allocation problem in benchmark
>
> src/java.base/share/classes/jdk/internal/foreign/CaptureStateUtil.java line
> 214:
>
>> 212: // Used reflectively by `getAsIntHandle(MemoryLayout layout)`
>> 213: private static int getStateAsInt(VarHandle handle) {
>> 214: if (Thread.currentThread().isVirtual() &&
>> ContinuationSupport.isSupported()) {
>
> Shouldn't we pin for the entire duration of the native call + errno
> retrieval? Otherwise, can't we end up in a situation where we have a back to
> back native call where the second native call overwrites the errno state of
> the first?
True. We need to rework the solution a bit as we do not want to pin virtual
threads during system calls.
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PR Review Comment: https://git.openjdk.org/jdk/pull/22391#discussion_r1914364338
