On Thu, May 29, 2003 at 11:02:59PM -0400, Lev Bishop wrote: > Here follow detailed results of my experimenting. > > Send the manpage to a file: > $ man bash > mb > Use less to look at it: > $ less mb > No problems suspending/restarting. > Use a pipeline in a subshell to view it (the way "man" does it): > $ (cat mb | less) > Now we have the almost the same problem as I described in my first > message - under xterm the 1st keypress sometimes goes to less instead of > to bash, subsequently foregrounding the pipeline less doesn't redraw the > screen properly, needs a newline after all commands, etc; under > console the pipeline sometimes just dies without any error message. > > More interestingly, if I don't put the pipeline in a subshell, then the > problem changes, /and ceases to be intermittent/. > $ cat mb | less > Now the problem is the same whether in xterm or console: if I ^Z then the > pipeline suspends (both processes shown by ps with an 'S', they stop > responding to keypresses) but control doesn't return to bash, and the only > way to unwedge things is to use "kill -CONT" from another window.
I've duplicated this bug. In fact, I'm unable to kill the pipeline, although in my case, I didn't try CONT first, just KILL. So, it would appear that one cannot suspend pipelines that have pending input waiting. -- Dario Alcocer -- Sr. Software Developer, Helix Digital Inc. [EMAIL PROTECTED] -- http://www.helixdigital.com -- 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/
