Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0001503Dwarf FortressDwarf Mode -- Environmentpublic2010-04-24 19:162014-01-31 15:59
ReporterDekon 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusnewResolutionopen 
PlatformOSOS Version
Product Version0.31.03 
Target VersionFixed in Version 
Summary0001503: Water fall into lava creates endless 'cavein' messages
DescriptionI'm currently getting spammed with 'a section of the cavern has collapsed' as water from a murky pool pours into a magma pipe below. It seems that the lava mist generated by the water constitutes as a cavern piece or something, and generates a warning message that part of the cavern has collapsed.
Steps To ReproduceDig a channel down to a lava pit, with a murky pool at the top. Let the water fall several z levels to it.
Additional Information
Tagscave-in, Intentional/Expected?, magma, water
Relationships
related to 0001339new  Plants grow in "Muddy Open Space", resulting in occasional cavern collapses 
has duplicate 0003345resolved Logical2u Cave in warnings on unreveld part of the map 
has duplicate 0004038resolved Dwarfu Cavern collapsed spam on magma over water 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2010-04-24 19:16DekonNew Issue
2010-04-24 19:26Logical2uNote Added: 0004940
2010-04-25 02:20FootkerchiefIssue Monitored: Footkerchief
2010-04-25 03:54KennelTag Attached: cave-in
2010-04-25 03:54KennelTag Attached: magma
2010-04-25 03:54KennelTag Attached: water
2010-04-25 09:20DekonNote Added: 0004997
2010-04-25 09:44Logical2uNote Added: 0005004
2010-08-18 16:36Logical2uRelationship addedrelated to 0000051
2010-08-18 16:36Logical2uRelationship addedrelated to 0001339
2010-08-27 17:01QwazzermanNote Added: 0012181
2010-09-30 11:57Logical2uRelationship addedhas duplicate 0003345
2011-02-20 11:12DwarfuRelationship addedhas duplicate 0004038
2011-02-20 11:13DwarfuNote Added: 0015330
2011-02-20 11:16AlumineNote Added: 0015331
2011-02-20 12:08thadiggaNote Added: 0015336
2012-03-06 08:57FootkerchiefRelationship deletedrelated to 0000051
2014-01-31 15:59FootkerchiefTag Attached: Intentional/Expected?

Notes
(0004940)
Logical2u   
2010-04-24 19:26   
Probably related to/duplicate of 0001339? Although this seems like it's man made and not world-gen made.

It's... not lava mist. The water/lava interaction is creating a hunk of Obsidian. Since that obsidian is completely suspended in liquid, it collapses.
(0004997)
Dekon   
2010-04-25 09:20   
Could be. That bug's a little vague on exactly what's happening.

You are right, however - all I was seeing is 'lava mist', but that does seem to be what's likely happening - obsidian forming/falling instantly.
(0005004)
Logical2u   
2010-04-25 09:44   
Yea, 1339 is a little... well, sparse at first glance, but the reporter eventually noticed that water was flowing into his volcano, generating a piece of obsidian and then a collapse.

I don't think you'd be able to see the obsidian ever form, due to the fact that it would disappear instantly, but the lava mist is probably indicative of the formation and then collapse of the obsidian. I'm not entirely clear on how lava mist works. See http://magmawiki.com/index.php/40d:Magma_mist [^]
(0012181)
Qwazzerman   
2010-08-27 17:01   
This happened to me as well. Upon embark a murky pool right next to the open volcano began leaking and flowed into the magma, causing many of these messages.
Also, the water only fell in from 1 z-level above the magma.

I also notice that a a single-tile column of magma mist is created that extends all the way to the bottom of the tube. This may be part of the repeated message issue.
(0015330)
Dwarfu   
2011-02-20 11:13   
Ditto for magma flow onto water per 0004038.
(0015331)
Alumine   
2011-02-20 11:16   
Still happening with 0.31.19
(0015336)
thadigga   
2011-02-20 12:08   
You mean the generated kind, not the dwarf-made kind?