Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Thu, 18 Sep 2003 10:49:18 -0400 From: Christopher Faylor To: cygwin@cygwin.com Subject: Re: Tcl/Tk wish shell execution problem under bash Message-ID: <20030918144918.GC7208@redhat.com> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i On Thu, Sep 18, 2003 at 10:43:53AM -0400, Igor Pechtchanski wrote: >On Thu, 18 Sep 2003, Jeff Russell wrote: > >> Igor Pechtchanski wrote: >> > >> > Can you reproduce the hang by running 'bash -c wish84'? How about 'bash >> > --login -i -c wish84'? If so, the problem might be triggered by the >> > presence of bash. >> > >> The following attempts produce the same hanging behavior: >> "bash -c /bin/wish84" from a DOS command shell and a bash (--login -i) >> shell >> "bash --login -i -c /bin/wish84" from DOS shell nd a bash (--login -i) >> shell >> However, >> "strace -w /bin/wish84" (from a bash shell) works! (Also confirmed by >> Felix von Hove) >> >> I haven't tried the latest snapshot due to learning curve (in progress). >> >> JEff Russell > >This validates my WAG somewhat. Does "strace -o wish.strace bash -c >wish84" reproduce the hang? The reason is that, IIRC, strace uses Windows >exec mechanisms, rather than Cygwin's, so you need to force Cygwin's exec >by running bash first. Also try using a large buffer with strace: strace -b 1000000 -o wish.strace bash -c wish84 since the large buffer sometimes helps unmask problems which were "fixed" by the slowdown incurred by running strace. cgf -- 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/