*** Fatal Error ***
Address not mapped to object (signal 11)
Address: (nil)

System: Linux compy4 5.18.0-0.deb11.4-amd64 #1 SMP PREEMPT_DYNAMIC Debian 5.18.16-1~bpo11+1 (2022-08-12) x86_64 GNU/Linux

GNU gdb (Debian 10.1-1.7) 10.1.90.20210103-git

Zandronum version 3.1 (4178904d7698)
Compiler version: 10.2.1 20210110

Command line: ./zandronum

Wad 0: zandronum.pk3
Wad 1: TNT.WAD
Wad 2: BDDoomguyOneLiners.wad

Not in a level.

Executing: gdb --quiet --batch --command=gdb-respfile-aHz6IK
[New LWP 5574]
[New LWP 5710]
[New LWP 5711]
[New LWP 5712]
[New LWP 5713]
[New LWP 5848]
[New LWP 5849]
[New LWP 5850]
[New LWP 5851]
0xb61c2207 in ?? ()
No shared libraries loaded at this time.
  Id   Target Id                 Frame 
* 1    LWP 5570 "zandronum"      0xb61c2207 in ?? ()
  2    LWP 5574 "zandronum"      0xb61bcc61 in ?? ()
  3    LWP 5710 "threaded-ml"    0xb61ea3ff in ?? ()
  4    LWP 5711 "zandronum"      0xb6f527b2 in ?? ()
  5    LWP 5712 "zandronum"      0xb61bcc61 in ?? ()
  6    LWP 5713 "zandronum"      0xb746c21d in ?? ()
  7    LWP 5848 "zandron:disk$0" 0xb6f527b2 in ?? ()
  8    LWP 5849 "zandron:disk$1" 0xb6f527b2 in ?? ()
  9    LWP 5850 "zandron:disk$2" 0xb6f527b2 in ?? ()
  10   LWP 5851 "zandron:disk$3" 0xb6f527b2 in ?? ()
  R7: Empty   0x00000000000000000000
  R6: Empty   0x00000000000000000000
  R5: Empty   0x00000000000000000000
  R4: Empty   0x00000000000000000000
  R3: Empty   0x00000000000000000000
  R2: Empty   0x00000000000000000000
  R1: Empty   0x00000000000000000000
=>R0: Empty   0x00000000000000000000

Status Word:         0x0000                                            
                       TOP: 0
Control Word:        0x037f   IM DM ZM OM UM PM
                       PC: Extended Precision (64-bits)
                       RC: Round to nearest
Tag Word:            0xffff
Instruction Pointer: 0x00:0x00000000
Operand Pointer:     0x00:0x00000000
Opcode:              0x0000
eax            0xfffffe00          -512
ecx            0xb61c2207          -1239670265
edx            0x0                 0
ebx            0x16dd              5853
esp            0xa6ba4940          0xa6ba4940
ebp            0xb                 0xb
esi            0xa6ba4974          -1497740940
edi            0x16dd              5853
eip            0xb61c2207          0xb61c2207
eflags         0x293               [ CF AF SF IF ]
cs             0x33                51
ss             0x2b                43
ds             0x0                 0
es             0x0                 0
fs             0x0                 0
gs             0x0                 0

Thread 10 (LWP 5851 "zandron:disk$3"):
#0  0xb6f527b2 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0x7adfe920

Thread 9 (LWP 5850 "zandron:disk$2"):
#0  0xb6f527b2 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa09fc920

Thread 8 (LWP 5849 "zandron:disk$1"):
#0  0xb6f527b2 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa11fd920

Thread 7 (LWP 5848 "zandron:disk$0"):
#0  0xb6f527b2 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0x849fe920

Thread 6 (LWP 5713 "zandronum"):
#0  0xb746c21d in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa60f1df0

Thread 5 (LWP 5712 "zandronum"):
#0  0xb61bcc61 in ?? ()
No symbol table info available.

Thread 4 (LWP 5711 "zandronum"):
#0  0xb6f527b2 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa6110a40

Thread 3 (LWP 5710 "threaded-ml"):
#0  0xb61ea3ff in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa19fe8c0

Thread 2 (LWP 5574 "zandronum"):
#0  0xb61bcc61 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa6df4a90

Thread 1 (LWP 5570 "zandronum"):
#0  0xb61c2207 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0xa6ba4940
Saved corefile core.5570
[Inferior 1 (process 5570) detached]