bug#27816: 26.0.50; X protocol error: BadPixmap (invalid Pixmap parameter) on protocol request 55

[Eli Zaretskii]

> Date: Thu, 03 Aug 2017 11:04:00 +0200
> From: martin rudalics <rudalics@gmx.at>
> CC: 27816@debbugs.gnu.org
> 
> With a build from 9.11.2014 I get the same behavior but with the
> meanwhile well-known message:
> 
> X protocol error: BadPixmap (invalid Pixmap parameter) on protocol request 55
> 
> In addition, the Emacs process consumes all CPU power it can get.
> 
> 
> With current master the client frame is shown for a short moment and
> then disappears.  The Emacs process does not stall.

Could any of this be related to the change whereby we no longer wait
for the frame to become visible?

> In all cases, the problem occurs reliably - on the average about every
> fifth call of emacsclient.

If you run Emacs in X synchronized mode and put a breakpoint on
x_error_quitter, can you see why the problem happens?  Which picmap
parameter is invalid?

> Lucid without toolkit scrollbars doesn't
> build here any more, so far no idea why [does anyone grok ...
> 
> In file included from ./string.h:49:0,
>                   from ../../lib/explicit_bzero.c:28:
> ./stddef.h:93:3: error: conflicting types for ‘max_align_t’
> In file included from ./stddef.h:55:0,
>                   from ./string.h:49,
>                   from ../../lib/explicit_bzero.c:28:
> /usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:426:3: note: previous 
> declaration of ‘max_align_t’ was here
> make[1]: *** [explicit_bzero.o] Fehler 1
> make[1]: *** Warte auf noch nicht beendete Prozesse...
> In file included from ./unistd.h:56:0,
>                   from ../../lib/fcntl.c:28:
> ./stddef.h:93:3: error: conflicting types for ‘max_align_t’
> In file included from ./stddef.h:55:0,
>                   from ./unistd.h:56,
>                   from ../../lib/fcntl.c:28:
> /usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:426:3: note: previous 
> declaration of ‘max_align_t’ was here

Sounds like some Gnulib-related issue.  Perhaps Paul could help figure
this out.

> BTW, I never use emacsclient and have no idea how to use it.  Is there a
> way to stop the server from the starting emacs?

I don't understand the question.  When Emacs starts, the server is not
started automatically, so I'm unsure what is it that you want to do.
Please tell me what I missed.

Thanks.