bug#28873: 26.0.60; error while restoring frameset

[Fabrice Popineau]

2017-10-17 20:24 GMT+02:00 martin rudalics <rudalics@gmx.at>:

> My point is that the frameset is not compatible between my emacs-w64
> session and my emacs-ubuntu session
> because (at least) of the border-width which errors.
> I was expecting to be able to run emacs independently on Windows and
> GNU/Linux and being able to share
> all of my setup. I get this error when the desktop package is restoring the
> session.

You earlier said that "it may happen that the modify-frame-parameters be
called with a border-width which is not the default one for the current
emacs. In this case, x_set_border_width errors because it can't change
it".  ‘frameset-restore’ should process a ‘border-width’ parameter only
when _creating_ a frame.  Note this remark in frameset.el:

;; - can be set at creation time, and setting them afterwards will fail with
;;   an error, *unless* you set it to the same value, a noop (`border-width')

So I would need a Lisp backtrace from x_set_border_width to find out how
comes that ‘frameset-restore’ calls ‘modify-frame-parameters’ here.

Not sure if the following will shed some light:

(gdb) xbacktrace

"modify-frame-parameters" (0xbfaea0)

"let*" (0xbfb100)

"frameset--restore-frame" (0xbfb290)

"setq" (0xbfb5b0)

"if" (0xbfb790)

"let*" (0xbfb9a0)

"condition-case" (0xbfbc30)

"progn" (0xbfbdc0)

"if" (0xbfbf60)

"let" (0xbfc1d0)

"let*" (0xbfc3e0)

"let" (0xbfc650)

"while" (0xbfc860)

"let" (0xbfcad0)

"let*" (0xbfcce0)

"progn" (0xbfce70)

"progn" (0xbfd000)

"let*" (0xbfd210)

"frameset-restore" (0xbfd3a0)

"eval-buffer" (0xbfda50)

"funcall-interactively" (0xbfda48)

"call-interactively" (0xbfddd0)

"command-execute" (0xbfe358)

"execute-extended-command" (0xbfea90)

"funcall-interactively" (0xbfea88)

"call-interactively" (0xbfeed0)

"command-execute" (0xbff428)

Fabrice

 

Thanks, martin