On Thu, Jun 22, 2006 at 06:53:38PM -0700, Brian Dessent wrote: > Linda Walsh wrote: > > > The attached test case is simple and fairly short. It does not > > depend on File::BOM (and has none of the code from it). > > > > It's only dependency (other than perl) is the POSIX module, > > where, from, the "fifo" command is taken. > > This appears to be a deadlock in the Cygwin DLL when both the reader and > writer end of a fifo tries to open the file at the same time (or nearly > the same time.) They end up signaling each other to ask about the other > end of the pipe, and hang there. It has nothing to do with perl or > fork, as far as I can tell -- the attached C testcase will work fine if > the reader end sleeps briefly to ensure the opening order. It's just a > classic race condition somewhere.
Good job isolating this problem, Linda and Brian. -- 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/
