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IRC log for #minetest-dev, 2013-12-09

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Time Nick Message
00:02 Exio4 there will be a 0.4.9 in xmas
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00:07 sapier did anyone ever try this one? minetest.hash_node_position?????
00:13 ShadowNinja emptty: That's been around for a long time(Pre-0.4.3?), but usually it doesn't flash.
00:14 emptty Exio4: cool! that's a good news
00:15 emptty ShadowNinja: well, it was playable with 0.4.7, but it becomes rather difficult with the latest stable
00:15 emptty (it was playable, even if it blinked from time to time, like when switching between "burning" and "not burning")
00:25 sapier sadly hash_node_position is really a "hash" and not a 48 bit value
00:30 emptty woot, it works perfectly with those three patches
00:30 emptty thanks guys
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00:40 ShadowNinja sapier: return (pos.z+32768)*65536*65536 + (pos.y+32768)*65536 + pos.x+32768
00:41 ShadowNinja sapier: Looks like a number to me...
00:41 sapier if you do it backwards you see loss of z coordinate
00:43 sapier funny thing is it's that symetric it can even be fixed
00:47 sapier ok I don't understand whyt this code works https://gist.github.com/sapier/7865813
00:48 sapier ohhhh
00:49 sapier guess I should've copied it  to gist previously :-)
01:03 iqualfragile sapier: what exactly do you not understand about it?
01:05 sapier I didn't see the typo in 65535 ;-)
01:06 iqualfragile k
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01:14 leo_rockway greetings, y'all.
01:14 leo_rockway the last few days I've been getting segfaults with latest builds.
01:14 leo_rockway I just figured out it can be reliable reproduced with the indev map generator
01:15 leo_rockway I start minetest, create a new map using indev and when I try to run it it segfaults.
01:16 kaeza ^ confirmed
01:20 leo_rockway kaeza: ^ unconfirmed now? >.<
01:20 kaeza wait...
01:23 kaeza what is the point of the mapgen combo on the map settings if it's only applied when you actually enter the map (i.e. not after creating it) ?
01:23 kaeza anyway, seems to crash reliably on indev
01:24 leo_rockway alright
01:24 kaeza for now, this is the gdb bt (release build): http://pastebin.com/pcWUJagb I'll build a debug version
01:25 VanessaE I thought we weren't supposed to use release builds for now?
01:26 VanessaE was that already fixed?
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01:34 kaeza http://pastebin.com/ma3kGpHt
01:46 daswort i get this error over and over again. looks a bit messy. https://dpaste.de/5LWx
01:46 daswort why does MT write that error thousand times in the output even when there is not interaction with the menu?
01:50 sapier yes VanessaE
01:50 sapier got fixed following day
01:50 VanessaE oh ok.
01:51 VanessaE as always I'm a day late and a dollar short :P
01:51 sapier indev is not recommended for production use
01:51 VanessaE looks like it's not recommeded for *any* use at the moment :)
01:51 sapier but be aware release builds usually are more crashy then debug builds
01:52 sapier master is quite buggy atm ... guess we need to stop adding experimental things if we want to release until christmas
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01:53 sapier a green tree ... I still don't have a christmas tree ... <<< fetching saw >>>
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01:56 VanessaE ha!
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02:57 hmmmm I see the problem with proller's mapgen
02:57 hmmmm he feels that he doesn't need to set ndef inside of his cave's ctor override
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08:13 RealBadAngel nore's patch broke shaders on some GPUs, heres the fix (and some optimization, thx to nore's idea)
08:13 RealBadAngel https://github.com/RealBadAngel/minetest/com​mit/39497c05b3ddebaec1783a16b6cec612d4b66ff7
08:13 RealBadAngel any objections?
08:14 RealBadAngel btw patch is already tested by me, nore and VanessaE
08:15 VanessaE works fine for me, no regressions that I could find after significant testing.
08:15 nore I'm ok for it...
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09:18 specing man it would be great if minetest actually remembered passwords
09:18 VanessaE G*d yes
09:18 specing It would be much more great if it wre using pubkey auth!
09:18 specing (quake style key)
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09:56 specing I think boats are actually slower than jsut swimming
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16:52 sapier https://github.com/minetest/minetest/pull/1030 come on guys that one is sitting around for days now fully tested lacking ANY comment of a core dev
16:54 sapier same for this one https://github.com/minetest/minetest/pull/1027
16:54 sapier https://github.com/minetest/minetest/pull/1036 and of course that one too ... john_minetest did quite a lot of testing for those
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16:55 thexyz I think that for #1027 we should have a one hardcoded (client-side setting) CDN server which the client will always use before attempting any others
16:55 thexyz this will improve player experience on servers that don't have remote media set up
16:56 sapier interesting idea but wouldn't that put a lot of load to that server?
16:57 thexyz for now we have minetest-cdn.net which is cloudflare'd
16:57 thexyz and i set it up so that media requests are served by cloudflare
16:57 sapier what about making server to tell client where to look for data? this way it's responsibility of server owner
16:58 thexyz and the server itself only sets a redirect
16:58 thexyz it's already this way, isn't it?
16:58 thexyz the problem is that on old servers no one is going to care about this
16:58 thexyz and having a "default" cdn server just works
16:58 sapier thought it's always fetched from server
16:59 thexyz what do you mean?
16:59 sapier yes but how is client supposed to know textures on cdn are same server has?
16:59 sapier e.g. if at server default textures are replaced
17:00 thexyz did you even read this pull you're suggesting to merge?
17:00 thexyz it uses sha hashes now instead of texture names
17:00 thexyz and verifies them of course
17:01 sapier I know so if server replaced the textures you do a useless lookup at cdn
17:02 sapier I read it quite some time agon ... it's sitting around for months now ... can't tell I know any singel detail about it
17:10 thexyz sapier: what do you mean "replaced the textures"?
17:10 thexyz it works this way: client gets list of hashes from server, POSTs them to the CDN server, gets list of hashes of textures the CDN server has and requests them from the CDN server
17:11 thexyz then with remaining textures/those that it failed to fetch it switches to the next CDN server
17:11 thexyz and in the end just ask server to send them the usual way
17:15 sapier this way EVERYTHING is checked by cdn server even if gameserver already KNOWS cdn server can't have the texture
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17:16 thexyz gameserver doesn't know anything about cdn
17:16 sapier and btw I have a very very bad feeling about minetest calling 100 servers once it's started without user knowing anything about it
17:16 thexyz it doesn't call 100 servers either
17:16 thexyz everything is checked, yes, but that's not the problem
17:16 BlockMen a simple question. does another one need to agree for a typo fix in lua-api, or is it fine just to push
17:17 thexyz (hint: calculate size of the hash we're using, multiply by average number of textures and compare to some texture .png)
17:17 sapier every 2 months another server is added to be autochecked
17:17 sapier serverlist
17:17 thexyz what?
17:17 sapier modlist
17:17 sapier cdn server
17:17 thexyz as you wish..
17:17 sapier what's going to be next? nsa "I'm now playing minetest" server
17:17 thexyz I just felt that it'll improve player's game experience greatly
17:17 thexyz no more lags even when playing on old servers which aren't going to be updated
17:18 thexyz (when receiving media, that is)
17:18 sapier it may help yes but I don't like it to be default
17:18 thexyz whatever
17:18 thexyz you should ask kahrl if his branch is merge-ready though
17:18 sapier if it's disabled by default and you have to enable it in settings it's fine
17:19 thexyz no it's not
17:19 thexyz because no one will do this and those who won't do this (read: everyone) will complain about media transfer being very slow
17:19 sapier it is as it's an active decision of user so he's aware of it
17:19 thexyz and no one ever will complain about requests being made to some public cdn server
17:20 sapier usually if commercial software does callbacks to servers I don't know I instantly block access to those servers
17:21 sapier noone complains about nsa catching all data ... because most people can't imagine what amount of data is collected
17:21 thexyz now that's some shitposting
17:22 thexyz so I guess this conversation is pointless
17:22 thexyz just ask kahrl if his branch is ready and if it is then just throw it in
17:22 sapier no it isn't user does connect to a server whos ip or name he entered
17:22 sapier usually I don't expect a application to call other servers too
17:22 thexyz this won't lead us anywhere
17:22 thexyz and I'm not in the mood to argue about it; I'll just fix it in the fork
17:23 sapier quite obvious ... guess we need to agree that we don't have same opinion only
17:23 thexyz indeed
17:23 celeron55 thexyz: you shouldn't argue about it endlessly with a single other core dev; it's pointless
17:23 thexyz I know
17:23 thexyz rather than that, I shouldn't argue
17:24 sapier how much forks are out there right now?
17:24 thexyz oh
17:24 thexyz I thought about creating a "minetest family tree" or something like that
17:24 celeron55 i don't have much against using minetest-cdn.net as the default; but i know some people will hate it
17:24 thexyz but I don't know minetest history enough
17:24 thexyz I know about minetest-classic, freeminer; all others seem to be dead
17:25 celeron55 there are one or two (or three?) forks by jachoo
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17:25 thexyz aren't those dead?
17:25 sapier if people do forks to get features instead of creating a game I guess we're doing something wrong
17:25 celeron55 yes, but they would be interesting to have there
17:25 thexyz sapier: or maybe right?
17:25 thexyz who knows
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17:26 celeron55 sapier: the only thing it means is that people have different opinions
17:26 sapier maybe but our intention was to create a engine as flexible as possible ... imho that means forkin wouldn't be necessary
17:26 celeron55 anyway, i also once made a fork of 0.4 for a paid project where some guy wanted to explore and dig around in his custom-generated voxel worlds 8)
17:27 celeron55 and then bought a laptop with that money
17:28 sapier I'd not call this a "real fork" :-) but yes as of git naming it is
17:28 celeron55 i consider dead forks very important
17:28 celeron55 there's always a lot to learn from in them
17:29 celeron55 because they always become to exist for a reason
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20:29 specing /data/specing/programs/minetest/​minetest/src/inventory.cpp:624: ItemStack& InventoryList::getItem(irr::u32): Assertion 'i < m_size' failed.
20:29 specing In thread 7f444d5867c0:
20:30 sapier what did you do?
20:30 sapier what mt version?
20:30 specing http://bpaste.net/show/LcHYEROz2Uy5tc7AE7C7/
20:30 specing sapier: right click a craft guide
20:30 specing 4.8.0-dev (updated saturday?)
20:30 PilzAdam whats the server version?
20:31 specing whatever clip's public server is running
20:31 VanessaE 0.4.8-dev
20:32 specing http://bpaste.net/show/o77onbC1u0Gj5zG7isMW/
20:32 specing full session
20:32 specing I clicked a craft guide near spawn
20:33 PilzAdam does it only happen for this single craftguide?
20:34 specing I think it is pretty reproducable
20:34 specing I got atleast 5 crashes on saturday
20:34 specing not sure if only this one
20:35 sapier seems we still miss a case of invaid data passed to scriptapi
20:35 PilzAdam yea, I guess its a mod that messes it up
20:35 sapier still we shouldn't crash that way
20:36 sapier specing can you try to find out what is required to reproduce it? or maybe run within gdb?
20:37 PilzAdam whats the server's IP?
20:41 specing sapier: click on that craft guide :/
20:41 specing jsut crashed again
20:41 PilzAdam sapier, https://gist.github.com/PilzAdam/7880453
20:41 specing yes, I saw PilzAdam crash :D
20:43 Exio4 >optimized out
20:44 sapier argh ... no idea why inventorylist believes to have to hande a size different from the one in its internal vector
20:46 sapier ok inventory list is a little bit more complex to understand what's going on in 30 seconds
20:47 PilzAdam specing, how does the craftguide formspec look when it doesnt crash?
20:48 PilzAdam or better, where is the mod sourcecode?
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20:52 sapier InventoryList uses inconsistent size that's not a mod error
20:52 sapier inventory.cpp L592 returns size of vector direct
20:53 sapier while assertion L618 and L624 is against m_size
20:53 sapier and for delete m_items.size() is used again
20:56 specing PilzAdam: it looks like a crafting guide and idk where the source is
20:57 PilzAdam sapier, and where do they get out of sync?
20:57 PilzAdam also changing m_size to m_items.size() in the assert() doesnt fix the crash
20:57 sapier that'S what I haven't figured out but obviously they do
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21:04 VanessaE guys, speaking of crashes, how long are you going to let the chat crash that nearly everyone gets bit by persist before investigating and fixing it?
21:05 specing Can someone implement quake-like client-server auth?
21:05 PilzAdam sapier, if(item_i >= (s32) ilist->getSize() || item_i < 0) guiFormspecMenu.cpp:1728 fixes it
21:06 sapier1 great so you do the right check and don't SEE the error any longer
21:07 sapier1 l_inventory.cpp checks for m_size while the called getItem() checks against vectorsize .... meaning in this special case m_size and actual vector size have to be out of sync
21:07 PilzAdam <PilzAdam> also changing m_size to m_items.size() in the assert() doesnt fix the crash
21:07 PilzAdam seems like the index is just negative
21:08 sapier1 yes changing return m_size to return m_items.size() will fix the issue too
21:09 sapier1 if I'm correct and really l_get_stack is called then index can't be negative
21:09 sapier1 ok let's double check that assumption first
21:10 sapier1 I'd have to put a breakpoint there but according to eclipse search that's the only location at all where getItem is called
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21:26 sapier (22:01:49) PilzAdam: also changing m_size to m_items.size() in the assert() doesnt fix the crash ooops ... where does that getItems() call originate from?
21:26 PilzAdam https://gist.github.com/PilzAdam/7880453
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21:28 sapier 590 lines of backtrace ;-/
21:29 PilzAdam well, 530 of it are the_game + main()
21:29 sapier ok I've been completely wrong ... sorry
21:33 PilzAdam hah
21:33 PilzAdam list[context;space;0,0;10,1;-2] causes the crash
21:33 PilzAdam i.e. a negative starting index
21:33 sapier already admited I was wrong ;-)
21:34 sapier but that size handling should be cleaned too
21:34 PilzAdam now where is the list formspec parsed?
21:34 sapier GuiFormSpecMenu.cpp
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21:36 Megaf Folks, could you please fix this fucking annoying bug? This stinking shit keeps crashing when ones TRIES to send a not small chat message ~10 words
21:36 Megaf http://paste.debian.net/70051/
21:36 Megaf I'm totally fed up with this shit
21:36 sapier any idea how to reproduce it?
21:37 Megaf download whatever new build you want, stable or master branch
21:37 Megaf compile it whatever you want too
21:37 sapier doesn't relieably crash for me everytime I trie to get it it's rocksolid
21:37 Megaf join to whatever server, and write whatever you want with + 10 words
21:37 sapier but I've seen those crashes too ... just everytime when I don't use a debugger
21:38 PilzAdam sapier, https://gist.github.com/PilzAdam/7881433 ?
21:38 Megaf it will crash as soon as you hit enter and it wont send any message
21:38 sapier ok push it
21:38 Megaf also this bug is ~3 weeks old
21:39 Megaf perhaps it happens only in my server anyhow
21:40 Megaf its megaf.co.vu port 30003
21:43 PilzAdam specing, its fixed now, get the latest client
21:44 PilzAdam oh, and whoever wrote the craft guide mod needs to fix it
21:46 sapier ok megaf I stop annoying your users doesn't seem to depend on your server
21:47 Megaf Ok, thanks
21:47 Megaf glad that it's not an issue with my server
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