Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0004941Dwarf FortressDwarf Mode -- Environmentpublic2011-10-29 08:202011-12-07 09:41
Reporterredmattis 
Assigned To 
PriorityimmediateSeveritymajorReproducibilityalways
StatusnewResolutionopen 
PlatformPCOSWindows 7OS Version
Product Version0.31.25 
Target VersionFixed in Version 
Summary0004941: Infinite Cave-In Loop in glacier
DescriptionAn infinite loop of cave-ins is created by dropping ice unto a rock layer below. ( to create water)

I can provide both a file before and after the cave-in for reproduction.
Steps To ReproduceDrop Ice walls one layer onto stone in glacier biome using cave-ins.
Additional InformationExactly the same as: http://www.bay12games.com/dwarves/mantisbt/print_bug_page.php?bug_id=4257 [^]

I have tried this twice in two different glacier (terrifying) areas embark areas.
TagsNo tags attached.
Relationships
related to 0001932confirmed Footkerchief Ice over water cave-in produces blocks of rock and "Unknown" 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2011-10-29 08:20redmattisNew Issue
2011-10-29 08:26redmattisNote Added: 0018927
2011-10-29 08:52redmattisNote Added: 0018928
2011-10-29 13:42QuietustNote Added: 0018930
2011-12-07 09:41FootkerchiefRelationship addedrelated to 0001932

Notes
(0018927)
redmattis   
2011-10-29 08:26   
I tried shutting of the stop announcement on cave in, and it continues to climb in cave-in numbers. as of writing it hasn't stopped and has a count of "x1065" in the announcement area.
(0018928)
redmattis   
2011-10-29 08:52   
I have found the cause of the infinite loop.

When ice falls down water is displaced to the layer above. The layer above is an ice layer, so the water is turned into ice wall... which falls down. infinity times.
(0018930)
Quietust   
2011-10-29 13:42   
This is probably related to 0001176. It's also a known issue that dates back to 40d and earlier.