On 06/07/2013 12:46, Ken Brown wrote: > On 64bit Cygwin, if I try to run emacs under X11 while cygserver is running, > emacs fails to connect to the X server. The error message from the X server > is > > BadShmSeg (invalid shared segment parameter) on protocol request 131 > > To reproduce: > > 1. Install the current version of emacs-X11 (24.3-4). > > 2. Start the (64bit) cygserver service. > > 3. Start the (64bit) X server, e.g., by typing "startxwin" in a Cygwin > Terminal. > > 4. In the resulting xterm, try to start emacs: > > $ emacs-X11.exe -Q & > > The result is that emacs displays the error message above and then aborts. > > emacs-X11 works fine if the X server is started when cygserver is not running.
Yup, there's some kind of bug which affects SHM use by the X server on 64bit. I am looking into it. You can also work around this by starting the X server with '-extension MIT-SHM' -- Jon TURNEY Volunteer Cygwin/X X Server maintainer
