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IDProjectCategoryView StatusDate SubmittedLast Update
0010782Dwarf FortressTechnical -- Saving/Loadingpublic2018-06-05 15:402020-08-23 09:02
Assigned Tolethosor 
PlatformPCOSWindows 10OS VersionVersion 1803
Product Version0.44.10 
Target VersionFixed in Version 
Summary0010782: Renaming/deleting unloaded worlds while the game is running and attempting to load them can lock up your computer
DescriptionI had the wonderful idea to launch DF, open the world folder to delete old worlds while still running DF, then try loading a now-removed world in fortress mode, which resulted in my computer freezing to the point where the power button wouldn't work.

The worlds in question were completely vanilla.

1: Launch DF
2: Create a new world, or use a world you don't want anymore for step 3
3: Go into the save folder and delete the world
4: Switch to the Dwarf Fortress window, and attempt to load the world.
5: Watch your computer itself crash while Dwarf Fortress attempts to take the data from a nonexistent folder, and overloads the system while doing so in a fruitless manner. For me, pressing the power button on my PC did not work.
6: After you're done admiring the crashed system, unplug the computer before plugging it back in.
Additional InformationI advise saving unsaved work before reproducing.
Attached Files

- Relationships
duplicate of 0005668resolvedLogical2u Freeze on "start playing" after deleting entire "save" folder while DF is running 
has duplicate 0011189resolvedLoci Choosing to start a game on a save file that has been deleted begins an accumulation of an endless amount of memory 

-  Notes
PatrikLundell (reporter)
2018-06-06 03:26

You claim this always happens, which implies you have repeated the process several times?

I've renamed and removed saves while DF is running and then tried to load them, which just resulted in failure. I just repeated it, and the behavior differed between using DFHack and vanilla: in vanilla DF went from the save select screen to the main screen, while DFHack remained on the game select screen, probably because the plugin allowing you to rename the save failed.

I'm using Windows 10.1.
Loci (manager)
2018-06-06 14:40

I was also unable to reproduce this. However, even if it was 100% reproducible, most software behaves poorly when you intentionally yank file structures out from under it. Since the problem requires the user to willfully sabotage the game, and the outcome is fairly benign (as opposed to, say, corrupting the disk), I don't really see any need to modify the behavior.
lethosor (manager)
2018-06-07 07:56

I have also done something like this several times (usually renaming), but have never had it affect my system. I'd say this is almost certainly a system-specific issue, or one that happened to be caused by some other factors.
lethosor (manager)
2020-08-22 17:07
edited on: 2020-08-22 17:12

On second thought, I'm reopening and confirming this. It agrees with observations in 0011189, so at least some users are seeing system-wide freezes because of this. I don't think deleting a save that isn't loaded qualifies as "sabotage" - if you were using other software, e.g. Microsoft Word, and deleted a .doc file that you didn't have open, would you expect your entire computer to lock up if you attempted to load that file (e.g. from a "recents" menu)? That's essentially what's happening here.

An error message would be suitable in this case, like most other software. Maybe even a crash would be understandable. However, attempting to read from a file that doesn't exist, without detecting it, and freezing a user's entire system while doing so, is absolutely a bug in my opinion.

I'm not reopening 0005668 because that involves deleting the entire data/save folder, which the game requires (e.g. for storing temporary data in data/save/current and creating new saves). In contrast, individual region folders are user data, and as long as they aren't in use, making copies and/or removing them is acceptable.

- Issue History
Date Modified Username Field Change
2018-06-05 15:40 0cra_tr0per New Issue
2018-06-05 15:42 0cra_tr0per Tag Attached: crash
2018-06-05 15:42 0cra_tr0per Issue Monitored: 0cra_tr0per
2018-06-05 15:42 0cra_tr0per Issue End Monitor: 0cra_tr0per
2018-06-06 03:26 PatrikLundell Note Added: 0038434
2018-06-06 14:40 Loci Note Added: 0038436
2018-06-06 14:40 Loci Status new => resolved
2018-06-06 14:40 Loci Resolution open => won't fix
2018-06-06 14:40 Loci Assigned To => Loci
2018-06-07 07:56 lethosor Note Added: 0038440
2019-12-11 13:31 Loci Relationship added has duplicate 0011189
2019-12-11 13:36 lethosor Relationship added duplicate of 0005668
2020-08-22 17:07 lethosor Note Added: 0040703
2020-08-22 17:07 lethosor Assigned To Loci => lethosor
2020-08-22 17:07 lethosor Status resolved => confirmed
2020-08-22 17:07 lethosor Summary Deleting worlds while the game is running and loading them BSODs your computer => Deleting unloaded worlds while the game is running and loading them BSODs your computer
2020-08-22 17:12 lethosor Note Edited: 0040703 View Revisions
2020-08-23 09:02 lethosor Reproducibility always => sometimes
2020-08-23 09:02 lethosor Resolution won't fix => open
2020-08-23 09:02 lethosor Summary Deleting unloaded worlds while the game is running and loading them BSODs your computer => Renaming/deleting unloaded worlds while the game is running and attempting to load them can lock up your computer

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