0008698: Dwarf entering a strange mood when isolated (e.g. on a stepladder) causes severe lag

(0031690)
Detros (manager)
2015-01-04 08:38

Can you post a zipped save of your region folder to http://dffd.wimbli.com/ [^] please?

(0031691)
Footkerchief (manager)
2015-01-04 09:08

Please upload a save that reproduces the problem to http://dffd.wimbli.com/ [^] and post the link here.

(0031692)
maqertas (reporter)
2015-01-04 10:01

Saved while the lag was still there.
http://dffd.wimbli.com/file.php?id=10380 [^]

(0032395)
lethosor (manager)
2015-03-22 12:26

From 0008734, this seems to apply if a dwarf is unable to access the fortress for other reasons as well.

(0032765)
NW_Kohaku (reporter)
2015-06-07 19:27

For what it's worth, I've had this happen for a non-mooding miner who decided to go on break after channeling and digging away the supporting wall (such that climbing up would involve very complicated maneuvers) but not completing the digging orders that would have brought him back into the connectivity to the rest of the fortress.

Also, when ordering repeated vertical channeling, dwarves seem to prefer to climb out, rather than just keeping on channeling until they hit bottom. Lag spikes occur *PER TILE THEY MOVE*, implying some sort of pathfind on a per-tile basis, which is obviously quite inefficient.

(In general, this seems less "bug" and more "feature in severe need of optimization", as this appears to be the pathfinding working as intended in a kludge movement mode that lacks a proper connectivity map.)

(0032828)
Robsoie (reporter)
2015-07-01 08:51
edited on: 2015-07-01 08:52

Got recently the same problem in 40.24 :
http://www.bay12forums.com/smf/index.php?topic=151121.msg6338320#msg6338320 [^]
A dwarf climbed for no reason on top of a wall , and as i observed often dwarves that climb on top of something (walls/trees) seem to have no idea on how to climb back down to the ground, that dwarves was taken suddenly by a "fey mood" and the game crawled to unplayable level.

Only managed to save my fort thanks to dfhack use of the teleport function, as once i teleported that buggy dwarf to the ground, he was able to pathfind correctly and the framerate went back to playable.

It's not a new bug though, i had a similar problem in one of the early df2014 release ( a 40.0x) happening to a non-mood dwarf that, in a cavern for some reason jumped down from a bridge on to a giant mushroom top.
Once he was on top of it , there was no way for him to get back to the bridge (it was 2 Z level over his head) and the game went immediately to unplayable level so i couldn't even order the build of a stair to give a path to that dwarf.
And i without DFHack at the time, the fort was then completely lost due to that unplayable lag.

(0033530)
Shurikane (reporter)
2015-12-06 16:31

Same problem here: I had sealed away a vampire. The moment he got into a strange mood, the game instantly dropped to 1 FPS.

I let him out of his vault, and instantly everything returned to normal.

(0033568)
Jiri Petru (reporter)
2015-12-07 04:44

Might be related to issue 1340:
http://www.bay12games.com/dwarves/mantisbt/view.php?id=1340 [^]

(0034010)
Killzemallgod (reporter)
2015-12-18 01:43
edited on: 2015-12-18 01:47

I have been getting pretty FPS drops just out of nowhere I think it could be pathfinding for singing and what not. Might be the big songs or dances that needs more people for it and it messes up other people coming into the tavern. might be related or at least caused more often by 0009252
http://www.bay12games.com/dwarves/mantisbt/view.php?id=9252 [^]

(0039583)
Loci (manager)
2019-11-13 21:54

v0.44.12: apepers posted a save in 0011176:

http://dffd.bay12games.com/file.php?id=14606 [^]

(0040520)
bugsubmitter20001 (reporter)
2020-04-30 13:56

This is still happening in 0.47.04

I've got a dwarf/werebeast citizen that I've isolated in a walled off area of my fort and just got the strange mood message. FPS dropped from 100 to 17

(0040931)
the_penguins (reporter)
2021-02-20 08:32

Just saw this in 0.47.05

Dwarf became possessed while picking fruit. He was standing in a tree directly above the stepladder but couldn't path to the workshops. An other gatherer eventually took his ladder and he was still stuck, so we cut down the tree and he immediately ran to the workshops.

(0041353)
rickalbert (reporter)
2022-12-07 16:17

This problem is still around in V50.01 on Steam.

Here's a link to my save file: https://dffd.bay12games.com/file.php?id=16191 [^]
And here is a video of the bug: https://youtu.be/k99HKejkAuA [^]

Hope this helps.

Issue History
Date Modified	Username	Field	Change
2015-01-04 07:55	maqertas	New Issue
2015-01-04 08:38	Detros	Note Added: 0031690
2015-01-04 09:07	Footkerchief	Relationship added	related to 0007284
2015-01-04 09:08	Footkerchief	Note Added: 0031691
2015-01-04 09:08	Footkerchief	Assigned To	=> Footkerchief
2015-01-04 09:08	Footkerchief	Status	new => needs feedback
2015-01-04 10:01	maqertas	Note Added: 0031692
2015-01-04 10:01	maqertas	Status	needs feedback => assigned
2015-01-12 14:25	lethosor	Relationship added	has duplicate 0008734
2015-01-12 15:33	Footkerchief	Status	assigned => confirmed
2015-03-22 12:24	lethosor	Relationship added	has duplicate 0008865
2015-03-22 12:24	lethosor	Summary	Strange mood causing severe lag => Dwarf entering a strange mood on a stepladder causes severe lag
2015-03-22 12:26	lethosor	Summary	Dwarf entering a strange mood on a stepladder causes severe lag => Dwarf entering a strange mood when isolated (e.g. on a stepladder) causes severe lag
2015-03-22 12:26	lethosor	Note Added: 0032395
2015-03-22 12:27	lethosor	Additional Information Updated	View Revisions
2015-03-22 12:28	lethosor	Relationship added	has duplicate 0008759
2015-03-22 12:28	lethosor	Issue Monitored: BenLubar
2015-05-13 13:05	lethosor	Relationship added	has duplicate 0008957
2015-05-24 11:25	lethosor	Sticky Issue	No => Yes
2015-06-07 19:27	NW_Kohaku	Note Added: 0032765
2015-06-17 16:53	lethosor	Relationship added	related to 0008537
2015-07-01 08:51	Robsoie	Note Added: 0032828
2015-07-01 08:52	Robsoie	Note Edited: 0032828	View Revisions
2015-12-06 16:31	Shurikane	Note Added: 0033530
2015-12-07 04:44	Jiri Petru	Note Added: 0033568
2015-12-18 01:43	Killzemallgod	Note Added: 0034010
2015-12-18 01:45	Killzemallgod	Note Edited: 0034010	View Revisions
2015-12-18 01:47	Killzemallgod	Note Edited: 0034010	View Revisions
2018-01-21 17:23	Detros	Relationship added	related to 0010538
2018-02-12 13:39	Loci	Relationship added	related to 0003869
2019-11-13 21:52	Loci	Relationship added	has duplicate 0011176
2019-11-13 21:54	Loci	Note Added: 0039583
2020-04-30 13:56	bugsubmitter20001	Note Added: 0040520
2020-10-10 04:08	Knight Otu	Relationship added	has duplicate 0011633
2021-02-20 08:32	the_penguins	Note Added: 0040931
2022-12-07 16:17	rickalbert	Note Added: 0041353

Notes
(0031690) Detros (manager) 2015-01-04 08:38	Can you post a zipped save of your region folder to http://dffd.wimbli.com/ [^] please?

(0031691) Footkerchief (manager) 2015-01-04 09:08	Please upload a save that reproduces the problem to http://dffd.wimbli.com/ [^] and post the link here.

(0031692) maqertas (reporter) 2015-01-04 10:01	Saved while the lag was still there. http://dffd.wimbli.com/file.php?id=10380 [^]

(0032395) lethosor (manager) 2015-03-22 12:26	From 0008734, this seems to apply if a dwarf is unable to access the fortress for other reasons as well.

(0032765) NW_Kohaku (reporter) 2015-06-07 19:27	For what it's worth, I've had this happen for a non-mooding miner who decided to go on break after channeling and digging away the supporting wall (such that climbing up would involve very complicated maneuvers) but not completing the digging orders that would have brought him back into the connectivity to the rest of the fortress. Also, when ordering repeated vertical channeling, dwarves seem to prefer to climb out, rather than just keeping on channeling until they hit bottom. Lag spikes occur PER TILE THEY MOVE, implying some sort of pathfind on a per-tile basis, which is obviously quite inefficient. (In general, this seems less "bug" and more "feature in severe need of optimization", as this appears to be the pathfinding working as intended in a kludge movement mode that lacks a proper connectivity map.)

(0032828) Robsoie (reporter) 2015-07-01 08:51 edited on: 2015-07-01 08:52	Got recently the same problem in 40.24 : http://www.bay12forums.com/smf/index.php?topic=151121.msg6338320#msg6338320 [^] A dwarf climbed for no reason on top of a wall , and as i observed often dwarves that climb on top of something (walls/trees) seem to have no idea on how to climb back down to the ground, that dwarves was taken suddenly by a "fey mood" and the game crawled to unplayable level. Only managed to save my fort thanks to dfhack use of the teleport function, as once i teleported that buggy dwarf to the ground, he was able to pathfind correctly and the framerate went back to playable. It's not a new bug though, i had a similar problem in one of the early df2014 release ( a 40.0x) happening to a non-mood dwarf that, in a cavern for some reason jumped down from a bridge on to a giant mushroom top. Once he was on top of it , there was no way for him to get back to the bridge (it was 2 Z level over his head) and the game went immediately to unplayable level so i couldn't even order the build of a stair to give a path to that dwarf. And i without DFHack at the time, the fort was then completely lost due to that unplayable lag.

(0033530) Shurikane (reporter) 2015-12-06 16:31	Same problem here: I had sealed away a vampire. The moment he got into a strange mood, the game instantly dropped to 1 FPS. I let him out of his vault, and instantly everything returned to normal.

(0033568) Jiri Petru (reporter) 2015-12-07 04:44	Might be related to issue 1340: http://www.bay12games.com/dwarves/mantisbt/view.php?id=1340 [^]

(0034010) Killzemallgod (reporter) 2015-12-18 01:43 edited on: 2015-12-18 01:47	I have been getting pretty FPS drops just out of nowhere I think it could be pathfinding for singing and what not. Might be the big songs or dances that needs more people for it and it messes up other people coming into the tavern. might be related or at least caused more often by 0009252 http://www.bay12games.com/dwarves/mantisbt/view.php?id=9252 [^]

(0039583) Loci (manager) 2019-11-13 21:54	v0.44.12: apepers posted a save in 0011176: http://dffd.bay12games.com/file.php?id=14606 [^]

(0040520) bugsubmitter20001 (reporter) 2020-04-30 13:56	This is still happening in 0.47.04 I've got a dwarf/werebeast citizen that I've isolated in a walled off area of my fort and just got the strange mood message. FPS dropped from 100 to 17

(0040931) the_penguins (reporter) 2021-02-20 08:32	Just saw this in 0.47.05 Dwarf became possessed while picking fruit. He was standing in a tree directly above the stepladder but couldn't path to the workshops. An other gatherer eventually took his ladder and he was still stuck, so we cut down the tree and he immediately ran to the workshops.

(0041353) rickalbert (reporter) 2022-12-07 16:17	This problem is still around in V50.01 on Steam. Here's a link to my save file: https://dffd.bay12games.com/file.php?id=16191 [^] And here is a video of the bug: https://youtu.be/k99HKejkAuA [^] Hope this helps.