I have seen and reported similar problem with cygwin xfree86 i tracked down problem to SeOn kernel memory which means "Security Captured Object Name information". Thread is "Kernel memory leak caused by XWin.exe" within cygwin-xfree mailing list (news.gmane.org:gmane.os.cygwin.xfree) My system is with 512 Mb RAM.
(Reposting message for 4th time because of post problems.) -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/