Program received signal SIGSEGV, Segmentation fault.
0x0044961c in CM_RecursiveHullCheck (num=8946272, p1f=0, p2f=1, p1=0x22e960,
    p2=0x22e950) at ../../src/qcommon/cmodel.c:1743
1743            plane = node->plane;
(gdb) bt
#0  0x0044961c in CM_RecursiveHullCheck (num=8946272, p1f=0, p2f=1,
    p1=0x22e960, p2=0x22e950) at ../../src/qcommon/cmodel.c:1743
#1  0x00449eaa in CM_BoxTrace (start=0x22e960, end=0x22e950, mins=0x11a42da0,
    maxs=0x11a42da0, tile=0, headnode=8946272, brushmask=100663299)
    at ../../src/qcommon/cmodel.c:1895
#2  0x0044a229 in CM_TransformedBoxTrace (start=0x22fc10, end=0x22fc00,
    mins=0x11a42da0, maxs=0x11a42da0, tile=0, headnode=8946272,
    brushmask=100663299, origin=0x1f727918, angles=0x1f727924)
    at ../../src/qcommon/cmodel.c:1956
#3  0x004716c1 in SV_ClipMoveToEntities (clip=0x22fa90)
    at ../../src/server/sv_world.c:373
#4  0x004719ec in SV_Trace (start=0x22fc10, mins=0x11a42da0, maxs=0x11a42da0,
    end=0x22fc00, passedict=0x1f726eb0, contentmask=100663299)
    at ../../src/server/sv_world.c:467
#5  0x6da57c3a in G_ShootSingle ()
#6  0x6da59103 in G_ClientShoot ()
#7  0x6da47979 in G_ClientAction ()
#8  0x00470e70 in SV_ExecuteClientMessage (cl=0x18fe9a30)
    at ../../src/server/sv_user.c:425
#9  0x0046ed73 in SV_ReadPackets () at ../../src/server/sv_main.c:682
#10 0x0046ef6d in SV_Frame (msec=100) at ../../src/server/sv_main.c:774
#11 0x0044e8f7 in Qcommon_Frame (msec=26) at ../../src/qcommon/common.c:1599
#12 0x00473157 in WinMain (hInstance=0x400000, hPrevInstance=0x0,
---Type <return> to continue, or q <return> to quit---
    lpCmdLine=0x241efb "ufo.exe", nCmdShow=10)
    at ../../src/ports/win32/sys_win.c:1236
#13 0x004a3b1a in main ()