UnixProcess class>>forkSqueak is no longer working. The forked child process VM crashes with segmentation fault. Testing with VMs from bintray shows that version 5.0-202009300634 works, and any version 5.0-202010192227 or later fails. Stack dump sometimes (but not always) shows failure in aioPoll() for example:
I am not able to catch the failure in gdb because it happens in the child process. My initial guess is that it may be related to the epoll enhancements added in this time frame, because forking the VM requires initializing things like this in the new child VM process.
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