Can someone identify this cause of map-crash? I tried to reproduce this with going on an instance dungeon(Sealed Shrine.) and left the party during the instance.
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Reading symbols from map-server...
[New LWP 3178]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `./map-server'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000055d4132e13b1 in instance_destroy (instance_id=1) at instance.cpp:664
664 map_foreachinallarea(instance_npcdestroy, im->map[i]->m, 0, 0, mapdata->xs, mapdata->ys, BL_NPC, im->map[i]->m);
(gdb) bt full
#0 0x000055d4132e13b1 in instance_destroy (instance_id=1) at instance.cpp:664
mapdata = 0x0
im = 0x55d41356faa0 <instance_data+64>
sd = 0x0
pd = 0x7f0a94641ec4
gd = 0x0
cd = 0x0
i = 0
type = 1
now = <optimized out>
mode = IM_PARTY
__FUNCTION__ = "instance_destroy"
#1 0x000055d4132e18bc in instance_delete_timer (tid=<optimized out>,
tick=<optimized out>, id=<optimized out>, data=<optimized out>)
at instance.cpp:96
No locals.
#2 0x000055d413248629 in main ()
No symbol table info available.
But it doesn't crash the server, Tested it several times.