0010778: Random crash when viewing thoughts/preferences of certain units

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0010778

Dwarf Fortress

Dwarf Mode -- Interface, Unit Profiles

public

2018-05-31 18:32

2018-06-01 07:28

Reporter

lethosor

Assigned To

lethosor

Priority

normal

Severity

crash

Reproducibility

sometimes

Status

confirmed

Resolution

open

Platform

Windows + Mac

OS Version

Product Version

0.44.10

Target Version

Fixed in Version

Summary

0010778: Random crash when viewing thoughts/preferences of certain units

Description

hittemvvvhard originally reported this on IRC (#dfhack on freenode), but I'm seeing this with the same save in vanilla. Either u-v-enter or v-z-enter crash on affected dwarves, but only sometimes.

Save: http://dffd.bay12games.com/file.php?id=13796 [^]

Steps To Reproduce

- Download http://dffd.bay12games.com/file.php?id=13796 [^]
- enter the relations of Rimtar Morulnoleth (9th on unit screen, blinking/legendary) and view the thoughts of fath teshkadosem (at the bottom of his relations) [taken from reproduce.txt in that download]

This can also be reproduced with another recruit near the bottom of Fath's relationships.

Note that I had to initialize memory to non-zero values (with "MallocScribble=1 ./df" on OS X) for the crash to happen consistently. A debugger or other memory analyzer might be necessary to catch this.

Also, apparently in a future migrant wave, only female migrants are affected by this crash. I only managed to reproduce that once (with DFHack, which isn't necessarily reliable), but hittemvvvhard claims to have seen this consistently with multiple migrant waves.

Additional Information

- Save was originally produced in 0.44.10, so it's not an issue with migrating to a new version
- The crash consistently happens at 0x100314bfc in the 64-bit OS X build of 0.44.10 (cmpl $0x4, (%rcx,%rax,4)). I haven't investigated further, but it might be dereferencing an uninitialized pointer.

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Notes
(0038421) hittemvvvhard (reporter) 2018-06-01 07:28 edited on: 2018-06-01 07:28	some more information that might be relevant: the crash happens for female visitors too (so far only dwarf monster slayers arrived) the fort in the save is actually the third fort in its world. the first fort did not have any such issues, the second was abandoned before any migrants or visitors arrived

Issue History
Date Modified	Username	Field	Change
2018-05-31 18:32	lethosor	New Issue
2018-05-31 18:32	lethosor	Product Version	=> 0.44.10
2018-05-31 18:32	lethosor	Assigned To	=> lethosor
2018-05-31 18:32	lethosor	Status	new => confirmed
2018-05-31 18:33	lethosor	Steps to Reproduce Updated	View Revisions
2018-06-01 07:28	hittemvvvhard	Note Added: 0038421
2018-06-01 07:28	hittemvvvhard	Note Edited: 0038421	View Revisions
2018-06-01 08:38	hittemvvvhard	Issue Monitored: hittemvvvhard