bug#45277: SELECTION_CLEAR_EVENT crashes

[Lars Ingebrigtsen]

Juri Linkov <juri@linkov.net> writes:

>>> I have exactly the same crashes on completely different computers.
>>> What surprises me is that no one else has these crashes.
>>
>> OK, then it can hardly be a hardware issue.  I can't recall seeing any
>> other bug reports (from others) in this area, though, so it does seem
>> like nobody else experiences these problems.
>
> It seems these crashes are GC-related.  They started to appear after Sep 2020.
> And after recent GC-related changes there are no more crashes, but after
> every screen lock/unlock, a produced DBUS event causes random errors.
> Here are some examples:

[...]

> Debugger entered--Lisp error: (wrong-type-argument listp "#ffffffffffff")
>   dbus-handle-event((dbus-event background-color . "#ffffffffffff"))
>   funcall-interactively(dbus-handle-event (dbus-event background-color
> . "#ffffffffffff"))
>   call-interactively(dbus-handle-event nil [(dbus-event
> background-color . "#ffffffffffff")])
>   command-execute(dbus-handle-event nil [(dbus-event background-color
> . "#ffffffffffff")] t)
>
> The last error contains part of (frame-parameter nil
> 'background-color) => "#ffffffffffff"
>
> And after doing 'M-x garbage-collect' there are no more errors on
> screen lock/unlock.
>
> Maybe GC-related changes didn't cause these errors, but just changed
> the behavior of some memory leak in DBUS-related code?

Hm, might be.  I've added Paul to the CCs -- perhaps he has some input
here?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no