bug#75209: 30.0.93; Emacs reader failed to read data in "/home/nlj/.cache/org-persist/gc-lock.eld"

[Eli Zaretskii <eliz@gnu.org>]

> From: "N. Jackson" <njackson@posteo.net>
> Cc: Eli Zaretskii <eliz@gnu.org>,  Ihor Radchenko <yantar92@posteo.net>
> Date: Sun, 05 Jan 2025 14:18:14 +0000
> 
> The following might be "normal", in which case I apologise for the
> noise, but it seems odd to me and it might have some bearing on the
> bug.
> 
> Running list-timers shows:
> 
> Idle                Next  Repeat Function
>        -1d 15h 43m 30.2s      1h org-persist--refresh-gc-lock
>                2.4s           1m battery-update-handler
>                2.4s           5m savehist-autosave
>                4.2s            - undo-auto--boundary-timer
>               50.1s           1m display-time-event-handler
>    *           0.1s            t show-paren-function
>    *           0.5s            t #<subr F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_9>
>    *           0.5s      :repeat blink-cursor-start
>    *          30.0s            - desktop-auto-save
> 
> I see nothing in the manuals about what it means for a
> relative timer to be negative.  (Or is org-persist--refresh-gc-lock
> running on a timer set with an absolute time that list-timers is
> merely displaying as a relative time?)  And it seems odd that this
> time is before this Emacs session started (emacs-uptime shows 1 day,
> 1 hour, 16 minutes, 40 seconds).

This timer is disabled.  See bug#39824 for some related discussions,
in particular

  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39824#53