Crash when attempting to close the game and choosing Yes while a debug message is displayed

[NetSysFire]

Describe the bug

See description.

Attach save file

n/a

Steps to reproduce

There are two, potentially different issues here.

1. Make sure you get a debugmsg while loading a world. In my case it was placing an item into a non-cargo space on a vehicle.
2. Load your save.
3. Send a SIGINT to the process (aka ctrl+c) while the debug message is displayed.
4. A y/n box will be displayed. Choose yes to exit the game without saving (why is this even displayed when the save is still loading?).
5. Segfault.

While trying to test around a bit to see if it impacted debug messages (by using a test debugmsg from the debug menu and ctrl+c'ing again) in general, I got the same crash but it looks like a different cause. While the above simply segfaults, I get

Fatal glibc error: malloc.c:2593 (sysmalloc): assertion failed: (old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)

with this one. I can reproduce this reliably by teleporting outside (or probably just moving) and, emitting a debugmsg, ctrl+c'ing and choosing Yes. Sometimes this one works as expected, on the third try I got:

 free(): invalid size

Expected behavior

No crash, duh. Since this is a rather specific crash, I made this one low priority.

Screenshots

No response

Versions and configuration

• OS: Linux
  • OS Version: LSB Version: n/a; Distributor ID: Arch; Description: Arch Linux; Release: rolling; Codename: n/a;
• Game Version: 060fe4f [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Portal Storms Ignore NPCs [personal_portal_storms],
  No Fungal Growth [no_fungal_growth],
  Bionic Professions [package_bionic_professions]
  ]

Additional context

No response

[GuardianDll]

Segfault can also happen when you simply close the game when debug message on

[Qrox]

Not sure if it's related, but the ctrl-c prompt is using query_yn which in turn uses ui_adaptor which is bound to cause all kinds of nasty reentry bugs. It might be best to write a special UI for the prompt that bypasses the ui_adaptor system, similar to the small console warning prompt.