I would ask about your Cygwin and Windows versions, but unless you're running an Insiders build, I don't think WSL is supposed to be this broken. Are you by any chance running a third-party antivirus or security suite or some uncommon driver, file system software? Consult the BLODA<https://cygwin.com/faq/faq.html#faq.using.bloda> for the worst offenders, but note that this list is not exhaustive.
-- David Macek -- 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