AARCH64/ARM64 OSProcess forking crashes VM immediately

[timrowledge]

OSProcess includes a neat way to fork the running image/vm but unfortunately it doesn't work on arm64 (at least, not on a Pi3/4/5).

We had some discussion about this a while back (sorry, not written notes I can find) and I think we concluded it was likely to do with the setup for the dual-access of the translated code memory area not getting carried across with the fork.

[OpenSmalltalk-Bot]

Please remove me from the list. Sent from my iPhone On Apr 11, 2024, at 9:41 AM, tim Rowledge via Vm-dev ***@***.***> wrote:  OSProcess includes a neat way to fork the running image/vm but unfortunately it doesn't work on arm64 (at least, not on a Pi3/4/5). We had some discussion about this a while back (sorry, not written notes I can find) and I think we concluded it was likely to do with the setup for the dual-access of the translated code memory area not getting carried across with the fork. — Reply to this email directly, view it on GitHub<#681>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AIJPEW6AJ2ER2IHVSJ7R6U3Y424I7AVCNFSM6AAAAABGCURUZ2VHI2DSMVQWIX3LMV43ASLTON2WKOZSGIZTQMJTHAZDCNA>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[OpenSmalltalk-Bot]

Please remove me from list. Thank you Sent from my iPhone On Apr 11, 2024, at 1:05 PM, Pete Fazio ***@***.***> wrote:  Please remove me from the list. Sent from my iPhone On Apr 11, 2024, at 9:41 AM, tim Rowledge via Vm-dev ***@***.***> wrote:  OSProcess includes a neat way to fork the running image/vm but unfortunately it doesn't work on arm64 (at least, not on a Pi3/4/5). We had some discussion about this a while back (sorry, not written notes I can find) and I think we concluded it was likely to do with the setup for the dual-access of the translated code memory area not getting carried across with the fork. — Reply to this email directly, view it on GitHub<#681>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AIJPEW6AJ2ER2IHVSJ7R6U3Y424I7AVCNFSM6AAAAABGCURUZ2VHI2DSMVQWIX3LMV43ASLTON2WKOZSGIZTQMJTHAZDCNA>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>