[Wayland-bugs] [Bug 94069] weston (1.9.92) listener function for opcode 5 of wl_pointer is NULL

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94069

            Bug ID: 94069
           Summary: weston (1.9.92) listener function for opcode 5 of
                    wl_pointer is NULL
           Product: Wayland
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: weston
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: hector.oron at gmail.com

When running a hello style application, it aborts in 1.9.92, while it works on
1.9.0 version of Weston.

To be able to reproduce (under weston):

  Configuration

[core]
modules=xwayland.so,cms-colord.so
shell=desktop-shell.so


  git clone https://github.com/hdante/hello_wayland
  cd hello_wayland
  make ; ./hello_wayland

  when cursor goes over the window, it aborts and displays the following
message:
  listener function for opcode 5 of wl_pointer is NULL
  Aborted.

  A backtrace:

Program received signal SIGABRT, Aborted.
0xb7fdcc38 in __kernel_vsyscall ()
(gdb) bt
#0  0xb7fdcc38 in __kernel_vsyscall ()
#1  0xb7dfced7 in raise () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#2  0xb7dfe4a9 in abort () from /lib/i386-linux-gnu/i686/cmov/libc.so.6
#3  0xb7f9a546 in wl_abort (
    fmt=0xb7f9ae70 "listener function for opcode %u of %s is NULL\n")
    at ../src/wayland-util.c:398
#4  0xb7f99719 in wl_closure_invoke (closure=0x804f418, flags=1, 
    target=0x804fc58, opcode=5, data=0x804f2d0) at ../src/connection.c:946
#5  0xb7f96429 in dispatch_event (display=display at entry=0x804b008, 
    queue=0x804b074) at ../src/wayland-client.c:1274
#6  0xb7f9760d in dispatch_queue (queue=0x804b074, display=0x804b008)
    at ../src/wayland-client.c:1420
#7  wl_display_dispatch_queue_pending (display=0x804b008, queue=0x804b074)
    at ../src/wayland-client.c:1662
#8  0xb7f9782e in wl_display_dispatch_queue (display=0x804b008, 
    queue=0x804b074) at ../src/wayland-client.c:1638
#9  0xb7f9787d in wl_display_dispatch (display=0x804b008)
    at ../src/wayland-client.c:1705
#10 0x08048be6 in main ()


Running a nested weston over gnome-shell x11 user session, leads to:
  1.9.92 aborts
  1.9.0  works

Running weston from a VT
  1.9.92 aborts
  1.9.0  shows a broken cursor, pointer image does not display, but instead a
black square box.


An example of what is expected can be found under GIT tree:
  images/hello_wayland_screenshot.png

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