Weird X crash

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

Hi,


I have been having lately X crash when I try to input a single character 
in Emacs 26.1 window when using a keyboard different from the default 
one. In my case, apart from the default en-GB keyboard, I have also 
Italian and Bulgarian one, they both work fine - например тук - with the 
usual notepad style text editors like pluma, gedit and gvim. If I try to 
do the same with Emacs, X crashes immediately and I get in the 
Xorg.0.log.old file (after the restart):

----

[  8912.791] (EE)
[  8912.791] (EE) Backtrace:
[  8912.852] (EE) 0: /usr/X11R7/bin/X (xorg_backtrace+0x3d) [0x1be9b37d3]
[  8912.852] (EE) 1: /usr/X11R7/bin/X (os_move_fd+0x67) [0x1be9af9f9]
[  8912.852] (EE) 2: /usr/lib/libc.so.12 (__sigtramp_siginfo_2+0x0) 
[0x76df3f6a9b70]
[  8912.852] (EE)
[  8912.852] (EE) Segmentation fault at address 0x76df00100000
[  8912.852] (EE)
Fatal server error:
[  8912.852] (EE) Caught signal 11 (Segmentation fault). Server aborting
[  8912.852] (EE)
[  8912.852] (EE)

Gdb gives me:

...

Core was generated by `X'.
Program terminated with signal SIGALRM, Alarm clock.
#0  0x000076df3f71f04a in _lwp_kill () from /usr/lib/libc.so.12
[Current thread is 1 (process 1)]
(gdb) bt
#0  0x000076df3f71f04a in _lwp_kill () from /usr/lib/libc.so.12
#1  0x000076df3f71ecd7 in abort () from /usr/lib/libc.so.12
#2  0x00000001be9aeef5 in OsAbort ()
#3  0x00000001be9aa75f in AbortServer ()
#4  0x00000001be9ab3f8 in FatalError ()
#5  0x00000001be9afa60 in ?? ()
#6  0x000076df3f6a9b70 in opendir () from /usr/lib/libc.so.12
#7  0x000000010000000b in ?? ()
#8  0x0000000000000000 in ?? ()

....


I don't use emacs often, so am not bothered much, but it is apparently 
some problem.

The system is an HP Envy laptop with an Intel 530 graphics and 
(nonfunctional under NetBSD) GeForce 950M, running under 8.99.34 at the 
moment, with fully upgraded current pkgsrc, if this is of importance. As 
I said, it happens only with Emacs. Also, Emacs does not work under dwm 
or i3, it seems to put X under some sort of a lock, you can't switch 
workspaces anymore, one has to go to the console and kill emacs to get 
normal behaviour of the tiling window managers, but that is aside the 
main question.

Emacs is 26.1 from pkgsrc.


Chavdar