On Mon, 22 Sept 2025 at 23:28, Jeremy Drake via Cygwin <[email protected]> wrote: > > On Mon, 22 Sep 2025, Mark Liam Brown via Cygwin wrote: > > > Greetings! > > > > Why does Cygwin not use MiCloneProcessAddressSpace() for fork()? That > > function was added for the Windows Services for UNIX, and it still > > working in Windows 11. > > > > Mark > > > > This is a perennial question, and the short answer is that it doesn't play > well with win32 dlls. Replies turned up via simple search: > > https://cygwin.com/pipermail/cygwin/2016-January/225571.html > https://cygwin.com/pipermail/cygwin/2018-January/235767.html
Maybe those bugs were fixed in the meantime? UWIN has threads, uses DLLs (UWIN build DLLs, stock Windows DLLs, 3rd party DLLs, ...) and obviously has full console support (even tmux works). I also would be VERY happy to escalate any bugs related to RtlCloneUserProcess() in Cygwin. Very few things (except proof for extensions to THE Standard Model) would make me more happy than a faster (RtlCloneUserProcess() based) fork() in Cygwin. Lionel -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
