[1] 11390 segmentation fault (core dumped) ./a.out

[ghost]

doesn't work

i was using PopOS 21.04 and
gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0

[ShrirajHegde]

Same on Fedora 34 gcc (GCC) 11.2.1 20210728

[donno2048]

Same on Debian 9.5 with gcc version 6.3.0 and Ubuntu 20.04 with gcc version 9.3.0

[goll72]

@ShrirajHegde Fedora now uses wayland by default and this program uses X11 so it won't work unless you install Xwayland.

[ShrirajHegde]

I'm an Nvidia user, so no Wayland for me.

[goll72]

I had a segmentation fault issue that I solved by replacing ":0" in XOpenDisplay() with NULL so that it uses the default in $DISPLAY. Probably unrelated but idk.
I also get a segmentation fault if I walk off the map, not sure if that's the one you are talking about or not.

[koply]

Same on Ubuntu 20.04.2 5.4.72-microsoft-standard-WSL2 kernel. gcc version 9.3.0

Also goll72's solution solved my problem. Works fine but a little slow. I tried this with gnome-terminal on XServer for Windows.

[Toompy]

Also throws a segfault on debian 5.0.3 on WSL, with gcc 8.3.0 (can it even work on WSL?..)

[TheKrafter]

doesn't work

i was using PopOS 21.04 and gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0

same here with Intel iGPU (Intel 3rd Gen Core processor Graphics Controller)

[ii64]

5.10.43.3-microsoft-standard-WSL2
Could you try to debug it? it seems it has a problem with XQueryKeymap
0000000000001180 XQueryKeymap@plt:
1184: f2 ff 25 2d 4e 00 00 bnd jmpq *0x4e2d(%rip) # 5fb8
12e6: e8 95 fe ff ff callq 1180 XQueryKeymap@plt

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7d58cc0 in XQueryKeymap () from /lib/x86_64-linux-gnu/libX11.so.6

frame:
Stack level 0, frame at 0x7fffffffd590:
rip = 0x7ffff7d58cc0 in XQueryKeymap; saved rip = 0x5555555552eb
called by frame at 0x7fffffffd5f0
Arglist at 0x7fffffffd538, args:
Locals at 0x7fffffffd538, Previous frame's sp is 0x7fffffffd590
Saved registers:
rbx at 0x7fffffffd578, rbp at 0x7fffffffd580, rip at 0x7fffffffd588

register:
rax 0x0 0
rbx 0x7fffffffd5b0 140737488344496
rcx 0xffffffffffffffb0 -80
rdx 0x7fffffffd5b0 140737488344496
rsi 0x7fffffffd5b0 140737488344496
rdi 0x0 0
rbp 0x0 0x0
rsp 0x7fffffffd540 0x7fffffffd540
r8 0x0 0
r9 0x0 0
r10 0xfffffffffffffcce -818
r11 0x7ffff7b137a0 140737348974496
r12 0x5555555551c0 93824992235968
r13 0x7fffffffd790 140737488344976
r14 0x0 0
r15 0x0 0
rip 0x7ffff7d58cc0 0x7ffff7d58cc0 <XQueryKeymap+32>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0

[ii64]

WSL + WSL graphic