Control: reassign -1 libx11
Control: forcemerge 746 -1

Stefan,

Thanks for this.

On Tue, Mar 14, 2023 at 03:57:53PM +0100, Stefan Schippers wrote:
> Package: xserver-xorg-core
>
> The bug seems not related to xorg but to the fvwm window manager crash. I ran the window manager with gdb and was able to reliably make it crash by some mouse activity.
>
> (gdb) run
> Starting program: /usr/bin/fvwm
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> [Detaching after fork from child process 4851]
> [Detaching after vfork from child process 4864]
> Warning: Arg --fvwm-icons is obsolete and ignored
> Python module python-xdg not found.fvwm: ../../src/xcb_io.c:626: _XAllocID: Assertion `ret != inval_id' failed.

Actually, this appears the same as #746[1]. In particular see
https://bugs.devuan.org/cgi/bugreport.cgi?bug=746#101 which is the same error in German.

Klaus reported it to Debian[2]. He also worked around[3] by downgrading
libx11-6, libx11-data and libx11-xcb1.

Mark

[1] http://bugs.devuan.org/746

[2] https://bugs.debian.org/1032379

[3] https://bugs.devuan.org/cgi/bugreport.cgi?bug=746#121