Comment 11 for bug 1964777

It seems that when spawning the "SPICE worker" in the bad case
the worker passes events before the other side is ready.

In both cases the spawn goes through the same control path

#0 __pthread_create_2_1 (newthread=0x5555572d4f10, attr=0x0, start_routine=0x7ffff7e33950, arg=0x5555572d4f10) at ./nptl/pthread_create.c:621
#1 0x00007ffff7eb11e6 in () at /lib/x86_64-linux-gnu/libspice-server.so.1
#2 0x00007ffff7e2c4eb in spice_server_add_interface () at /lib/x86_64-linux-gnu/libspice-server.so.1
#3 0x0000555555a8c078 in qemu_spice_add_interface (sin=0x555557194c08) at ../ui/spice-core.c:874
#4 0x0000555555a8c2d1 in qemu_spice_add_display_interface (qxlin=0x555557194c08, con=0x555557133c00) at ../ui/spice-core.c:944
...

#0 __pthread_create_2_1 (newthread=0x5555572d1690, attr=0x0, start_routine=0x7ffff7e3d140, arg=0x5555572d1690) at pthread_create.c:597
#1 0x00007ffff7e362f0 in spice_server_add_interface () from /lib/x86_64-linux-gnu/libspice-server.so.1
#2 0x0000555555a8c078 in qemu_spice_add_interface (sin=0x555557191c08) at ../ui/spice-core.c:874
#3 0x0000555555a8c2d1 in qemu_spice_add_display_interface (qxlin=0x555557191c08, con=0x5555567d3450) at ../ui/spice-core.c:944
...

Maybe it is libspice-server.so ?

 libspice-server1 | 0.14.3-2.1ubuntu1 | impish | amd64, arm64, armhf, ppc64el, riscv64
 libspice-server1 | 0.15.0-2ubuntu3 | jammy | amd64, arm64, armhf, ppc64el, riscv64

They have the same soname, so they could be interchangeable

And indeed replacing the lib with the older one it works as it did in the past.
So we are actually looking for a libspice-server change.

Updating the bug-tasks ...