[1]   Segmentation fault      /usr/share/examples/wayland/minimal-qml/minimal-qml
[2]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[3]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[4]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[5]   Segmentation fault      /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[6]   Segmentation fault      /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[8]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[9]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[10]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[11]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[12]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[13]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[14]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[15]   Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[16]-  Done(1)                 /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl
[17]+  Segmentation fault      (core dumped) /usr/share/examples/quick3d/hellocube/hellocube -platform wayland-egl

(gdb) info registers
x0             0x38                56
x1             0x0                 0
x2             0x0                 0
x3             0x0                 0
x4             0x7f69934268        547232105064
x5             0x7f69934060        547232104544
x6             0x0                 0
x7             0x0                 0
x8             0xcf                207
x9             0x7f74df48c8        547421636808
x10            0xfffffffb          4294967291
x11            0x3                 3
x12            0xa798              42904
x13            0x7f54007cb4        546870164660
x14            0x4                 4
x15            0x7f54007cd8        546870164696
x16            0x7f74fc13d8        547423523800
x17            0x7f78640618        547480667672
x18            0x7f54007cd8        546870164696
x19            0x7f82cfbc70        547655498864
x20            0x4000000000        274877906944
x21            0x0                 0
x22            0x0                 0
x23            0x7f54004b30        546870151984
x24            0x0                 0
x25            0x7f74ea58b0        547422361776
x26            0x7f6993376c        547232102252
x27            0x7f69933774        547232102260
x28            0x7f69933788        547232102280
x29            0x7f699335b8        547232101816
x30            0xece00000002       16277926051842
sp             0x7f69933610        0x7f69933610
pc             0xece00000002       0xece00000002
cpsr           0x80000000          [ EL=0 N ]
fpsr           0x10                16
fpcr           0x0                 0

For some reason the sp points to a random location

(gdb) info proc mappings
Mapped address spaces:

 

          Start Addr           End Addr       Size     Offset objfile
        0x5575604000       0x5575609000     0x5000        0x0 /usr/share/examples/quick3d/hellocube/hellocube
        0x5575618000       0x5575619000     0x1000     0x4000 /usr/share/examples/quick3d/hellocube/hellocube
        0x5575619000       0x557561a000     0x1000     0x5000 /usr/share/examples/quick3d/hellocube/hellocube
        0x7f682b0000       0x7f684b0000   0x200000        0x0 anon_inode:dmabuf
        0x7f684b0000       0x7f686b0000   0x200000        0x0 anon_inode:dmabuf
        0x7f686b0000       0x7f688b0000   0x200000        0x0 anon_inode:dmabuf
        0x7f688b0000       0x7f689b0000   0x100000        0x0 anon_inode:dmabuf
        0x7f68b59000       0x7f68b69000    0x10000        0x0 anon_inode:dmabuf
        0x7f68f6b000       0x7f68feb000    0x80000        0x0 anon_inode:dmabuf
        0x7f68feb000       0x7f690a4000    0xb9000        0x0 /usr/share/fonts/truetype/DejaVuSans.ttf
        0x7f690a4000       0x7f690b4000    0x10000        0x0 anon_inode:dmabuf
        0x7f690f4000       0x7f69114000    0x20000        0x0 anon_inode:dmabuf
        0x7f69114000       0x7f69124000    0x10000        0x0 anon_inode:dmabuf
  0x7f69124000       0x7f69134000    0x10000        0x0 anon_inode:dmabuf
        0x7f6b939000       0x7f6bfb5000   0x67c000        0x0 /usr/lib/libQt5Widgets.so.5.15.15