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IRC log for #luanti, 2026-01-15

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All times shown according to UTC.

Time Nick Message
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03:46 user333_ is it just me or is https://content.luanti.org/help/api/ a bit broken?
03:46 user333_ i'l send a screenshot in a sec
03:48 user333_ https://filebin.net/ekvmvhz102oq531q/Screenshot%20from%202026-01-14%2023-47-09.png
03:48 MTDiscord <wsor4035> ...and whats broken?
03:49 user333_ that's not scrolled horizontally yet it's cut off
03:49 MTDiscord <wsor4035> ah yeah, that
03:50 user333_ doesn't seem to happen on my main PC, might just be my screen rsolution
03:50 MTDiscord <wsor4035> its your screen size
03:51 user333_ thought so
03:52 MTDiscord <wsor4035> the nav gets screwed up if you go smaller before it switches over to mobile
03:52 MTDiscord <wsor4035> https://cdn.discordapp.com/attachments/749727888659447960/1461206263751901383/image.png?ex=6969b5e1&amp;is=69686461&amp;hm=2f9725c01faa94d503fbc831628bdde576b1e904585277f628df5401ac763b04&amp;
03:52 user333_ it doesnt like 1366x768
03:55 user333_ so it was just me ig
03:55 user333_ looks fine on 80% scale tho
04:07 user333_ ig time to make a contentdb CLI because i'm tired of scp-ing over packages .-.
04:08 user333_ and because im bored and want a project
04:08 MTDiscord <wsor4035> why not use the one that already exists?
04:08 MTDiscord <wsor4035> https://github.com/ronoaldo/minetools
04:08 user333_ because that doesn't solve "and because im bored and want a project"
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05:36 * user333_ makes progress on a ContentDB CLI
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05:58 user333_ more results from grepping through the IRC logs, Helenah was responsible for about 80% of the ':3''s in #luanti
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11:03 parabyte any dev's here?
11:05 parabyte im building a multi protocol craft daemon with a unified engine, and a plugin system with various protocols, need some guidance on some non luanti stuff or where to go and ask about such stuff!
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17:38 user333_ working on my contentdb CLI... i think i screwed up some paths: https://paste.centos.org/view/0013917d
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18:04 whylay how can get_properties() called inside get_staticdata() return nil? seems like an engine bug?
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18:05 rubenwardy that should not happen, correct
18:06 whylay just randomly happened in a code running 24/7 since october :p
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18:07 rubenwardy this could happen if a mod is randomly calling get_staticdata after the entity is deleted
18:07 rubenwardy or unloaded
18:08 whylay it says "ModError while shutting down: Runtime error from mod '??' in callback luaentity_GetStaticdata()"
18:09 rubenwardy oh ok so the engine is calling get_staticdata
18:11 Krock whylay: all relevant log lines, please. Also make sure that you're running 5.14.0 or newer.
18:11 Krock There have been a few entity-related fixes every now and then.
18:11 whylay it's on 5.12 iirc...
18:12 Krock give 5.15.0-rc1 a try while you're at it :3
18:13 whylay can't run it again for months quickly :p
18:17 Krock no but you can see whether it happens again until 5.16.0 is out
18:18 whylay and if it does, run it againg until 5.17 because changes happen XD
18:20 Krock it is what it is
18:24 whylay for the record, full backtrace and relevant function https://paste.debian.net/hidden/b0fa30a2
18:27 Krock the object was already marked for removal when the callback was fired
18:28 whylay so, it's illegal to call get_properties() inside get_staticdata()?
18:29 Krock no, but some callback (or Luanti) must've :remove()'d it in between
18:30 Krock all (of almost all?) calls to ObjectRef will return nil when the object was removed
18:31 rubenwardy the engine should not be calling get_staticdata on removed objects
18:31 whylay but trying to serialize *after* removal seems like a bug?
18:31 Krock that would be a bug yes. But at this point we are not 100% sure whether the entity was deleted inside the callback or before
18:31 rubenwardy also the whole make everything nil immediately after removal was a bad idea imo, results in a lot of crashes. Would have been better to mark for removal and then fully delete on the next server step
18:34 whylay Krock: I'm not sure where inside this callback it can be deleted?
18:37 whylay also, this entity is immortal in multiple ways...
18:38 whylay (I mean armor groups immortal=1 and on_blast() callback)
18:38 whylay no nothing should be able to remove it normally apart from serialization
18:38 rubenwardy I read immoral and was wondering how an entity can be immoral
18:39 rubenwardy not just immoral, immoral in multiple ways
18:40 whylay It's a mimic that pretends to be visually like other things, so if you consider that immoral...
18:43 Krock whylay: by that I meant an explicit call to :remove() inside the function, or another (metatable) function that it may call
18:43 Krock considering this only happened once, I would however suppose that's more of a race condition kind of issue
18:44 Krock or memory corruption (by hardware or a logic error)
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18:45 whylay there was a similar issue where right-click callback was called on removed entity (should be fixed I think?)
18:46 whylay but here, as far as I know, no one with enough privs to even attempt removing it was active on the server :p
18:48 whylay also, what even happened with this entity now? It's lost?
18:49 whylay also, what would happen with it if get_staticdata() didn't crash? could it be serialized at all? like position etc?
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19:05 Krock I assume the underlying object did still exist (aside from being marked for removal), thus it would've saved like any other entity.
19:10 whylay even though, get_pos() in lua would also probably return nil?
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19:20 whylay btw, on current master, crashing inside get_staticdata causes segfault. Looks like it's mentioned here: https://github.com/luanti-org/luanti/issues/8352
19:26 Krock yes that would return nil.
19:28 whylay crashing inside on_deactivate also causes segfault :p
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19:31 whylay um...
19:31 whylay also, crashing inside on_deactivate causes entities to be duplicated and have same GUID
19:41 whylay minimal entity to try it: https://paste.debian.net/hidden/7fe01cc1
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22:07 sfan5 well don't do that
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