On Thu, 1 Feb 2024 05:22:24 GMT, David Holmes <dhol...@openjdk.org> wrote:
>> This change uses a claim token to allocate multi dimensional arrays rather >> than holding MultiArray_lock around metaspace allocation. We can't hold a >> mutex around metaspace allocation because it can create an OOM object and it >> can also call into JVMTI for a resource exhausted event. Also, we were >> creating mirrors and more metadata arrays while holding this lock. See the >> bug for more details and other ideas considered and rejected. >> >> Tested with tier1-7. > > ~~Can't you just use a Monitor to implement the claim token, rather than this > lock-free approach? (Similar to how class initialization is handled.)~~ > > Sorry lost the forest in the trees. I'm going to do a bit of rework as discussed with @dholmes-ora . ------------- PR Comment: https://git.openjdk.org/jdk/pull/17660#issuecomment-1929599218
