On Mon, 27 Mar 2023 15:53:47 GMT, Roman Kennke <rken...@openjdk.org> wrote:
> > @rkennke Question about ZGC and LockStack::contains(): how does this work > > with colored pointers? Don't we have to mask the color bits out somehow > > when comparing? E.g. using `ZAddress::offset()` ? > > > > That would be a question for @fisk and/or @stefank. AFAIK, the color bits > should be masked by ZGC barriers *before* the oops enter the synchronization > subsystem. But I kinda suspect that we are somehow triggering a ZGC bug here. > Maybe we require barriers when reading oops from the lock-stack too? Oops that are processed in Thread::oops_do should not have load barriers. Other oops should have load barriers. ------------- PR Comment: https://git.openjdk.org/jdk/pull/10907#issuecomment-1485426029
