q3map2 stuck in lighting stage

$ gdb -args q3map2 -light -fs_pakpath . -fs_pakpath /home/illwieckz/Jeux/PC/unvanquished/pkg/ -fs_pakpath /home/illwieckz/dev/mapping/unvanquished/ -srffile /mnt/tmpfs/tmpvx2od47__tinymetro.srf -bspfile /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro.bsp -lightmapdir /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro -game unvanquished -fastallocate -fast -samples 1 -samplesize 32 -lightmapsize 1024 -external ./maps/tinymetro.map
GNU gdb (Ubuntu 7.12-0ubuntu1) 7.12
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Reading symbols from q3map2...(no debugging symbols found)...done.
(gdb) r
Starting program: /home/illwieckz/.local/radiant/bin/q3map2 -light -fs_pakpath . -fs_pakpath /home/illwieckz/Jeux/PC/unvanquished/pkg/ -fs_pakpath /home/illwieckz/dev/mapping/unvanquished/ -srffile /mnt/tmpfs/tmpvx2od47__tinymetro.srf -bspfile /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro.bsp -lightmapdir /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro -game unvanquished -fastallocate -fast -samples 1 -samplesize 32 -lightmapsize 1024 -external ./maps/tinymetro.map
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
2.5.17n-git-31ea072
threads: 8
Q3Map         - v1.0r (c) 1999 Id Software Inc.
Q3Map (ydnar) - v2.5.17n-git-31ea072
NetRadiant    - v1.5.0 Feb 16 2017 09:45:01
Your map saw the pretty lights from q3map2's BFG
VFS Init: /home/illwieckz/.unvanquished/pkg/
VFS Init: /home/illwieckz/.local/radiant/pkg/
VFS Init: .
VFS Init: /home/illwieckz/Jeux/PC/unvanquished/pkg/
VFS Init: /home/illwieckz/dev/mapping/unvanquished/

--- Light ---
--- ProcessGameSpecific ---
 lightning model: quake3
 lightmap size: 128 x 128 pixels
 lightning gamma: 1.000000
 lightmap colorspace: linear
 texture colorspace: linear
 _color colorspace: linear
 lightning compensation: 1.000000
 lightning exposure: 0.000000
 lightgrid scale: 1.000000
 lightgrid ambient scale: 1.000000
 shader lightstyles hack: enabled
 patch shadows: disabled
 deluxemapping: disabled
--- ProcessCommandLine ---
Use /mnt/tmpfs/tmpvx2od47__tinymetro.srf as surface file
Use /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro.bsp as bsp file
Lightmap directory set to /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro
Storing all lightmaps externally
Fast allocation mode enabled
Fast mode enabled for all area lights
Default lightmap sample size set to 32x32 units
Default lightmap size set to 1024 x 1024 pixels
Storing all lightmaps externally
Storing all lightmaps externally
entering scripts/shaderlist.txt
entering scripts/shaderlist.txt (2)
entering scripts/shaderlist.txt (3)
entering scripts/shaderlist.txt (4)
entering scripts/shaderlist.txt (5)
entering scripts/shaderlist.txt (6)
entering scripts/shaderlist.txt (7)
entering scripts/shaderlist.txt (8)
entering scripts/shaderlist.txt (9)
entering scripts/shaderlist.txt (10)
entering scripts/shaderlist.txt (11)
entering scripts/shaderlist.txt (12)
entering scripts/shaderlist.txt (13)
entering scripts/shaderlist.txt (14)
entering scripts/shaderlist.txt (15)
entering scripts/shaderlist.txt (16)
entering scripts/shaderlist.txt (17)
entering scripts/shaderlist.txt (18)
entering scripts/shaderlist.txt (19)
entering scripts/shaderlist.txt (20)
entering scripts/shaderlist.txt (21)
entering scripts/shaderlist.txt (22)
entering scripts/shaderlist.txt (23)
entering scripts/shaderlist.txt (24)
entering scripts/shaderlist.txt (25)
entering scripts/shaderlist.txt (26)
entering scripts/shaderlist.txt (27)
entering scripts/shaderlist.txt (28)
entering scripts/shaderlist.txt (29)
entering scripts/shaderlist.txt (30)
entering scripts/shaderlist.txt (31)
entering scripts/shaderlist.txt (32)
entering scripts/shaderlist.txt (33)
entering scripts/shaderlist.txt (34)
entering scripts/shaderlist.txt (35)
entering scripts/shaderlist.txt (36)
entering scripts/shaderlist.txt (37)
entering scripts/shaderlist.txt (38)
entering scripts/shaderlist.txt (39)
entering scripts/shaderlist.txt (40)
entering scripts/shaderlist.txt (41)
entering scripts/shaderlist.txt (42)
entering scripts/shaderlist.txt (43)
entering scripts/shaderlist.txt (44)
entering scripts/shaderlist.txt (45)
entering scripts/shaderlist.txt (46)
entering scripts/shaderlist.txt (47)
entering scripts/shaderlist.txt (48)
entering scripts/shaderlist.txt (49)
entering scripts/shaderlist.txt (50)
entering scripts/shaderlist.txt (51)
entering scripts/shaderlist.txt (52)
entering scripts/shaderlist.txt (53)
entering scripts/shaderlist.txt (54)
entering scripts/shaderlist.txt (55)
entering scripts/shaderlist.txt (56)
entering scripts/shaderlist.txt (57)
entering scripts/shaderlist.txt (58)
entering scripts/shaderlist.txt (59)
entering scripts/shaderlist.txt (60)
entering scripts/common.shader
Script file scripts/common+.shader was not found
Script file scripts/common-trem.shader was not found
entering scripts/paint7.shader
entering scripts/metro.shader
entering scripts/atcshd.shader
entering scripts/atcshd_compat.shader
entering scripts/rsmse.shader
entering scripts/arachnid2.shader
entering scripts/atcs.shader
entering scripts/karith.shader
WARNING: Unknown surfaceparm: "solid"
WARNING: Unknown surfaceparm: "solid"
WARNING: Unknown surfaceparm: "solid"
entering scripts/nexus6.shader
entering scripts/niveus.shader
entering scripts/plant_life.shader
entering scripts/stasis.shader
entering scripts/titan.shader
entering scripts/transit.shader
entering scripts/tremor.shader
entering scripts/uncreation.shader
entering scripts/water.shader
entering scripts/tremulous_compat.shader
entering scripts/techdemo.shader
entering scripts/freeway_custom.shader
entering scripts/ctcs.shader
entering scripts/fortification.shader
Script file scripts/antares.shader was not found
entering scripts/antares_pk02.shader
entering scripts/chasm_custom.shader
entering scripts/ely_peaks.shader
entering scripts/forlorn.shader
entering scripts/yughues.shader
entering scripts/parpax_custom.shader
entering scripts/parpax_evillair.shader
entering scripts/parpax_ex.shader
entering scripts/parpax_exm.shader
entering scripts/parpax_pk01.shader
Script file scripts/perseus.shader was not found
entering scripts/perseus_custom.shader
entering scripts/perseus_env.shader
entering scripts/perseus_ex.shader
entering scripts/perseus_pk01.shader
entering scripts/perseus_pk02.shader
entering scripts/perseus_q4power.shader
entering scripts/spacetracks_custom.shader
entering scripts/station15_what.shader
entering scripts/station15_custom.shader
WARNING: Unknown surfaceparm: "nolightmaps"
entering scripts/shared_vega.shader
entering scripts/vega_custom.shader
entering scripts/vega_models.shader
Script file scripts/yocto.shader was not found
entering scripts/yocto_custom.shader
entering scripts/yocto_ex.shader
entering scripts/yocto_q4power.shader
entering scripts/shared_ej01-clean.shader
entering scripts/shared_ej01-ice.shader
entering scripts/shared_ex.shader
entering scripts/shared_exm.shader
entering scripts/shared_pk01.shader
entering scripts/shared_pk02.shader
entering scripts/shared_space.shader
entering scripts/shared_tech.shader
entering scripts/shared_trak5.shader
Loading /home/Archive/dev/mapping/unvanquished/map-tinymetro_src.pk3dir/./maps/tinymetro.map
Loading /mnt/tmpfs/tmpvx2od47__tinymetro.srf
libpng error: bad parameters to zlib
WARNING: An error occurred reading PNG image
libpng error: bad parameters to zlib
WARNING: An error occurred reading PNG image
libpng error: bad parameters to zlib
WARNING: An error occurred reading PNG image
libpng error: bad parameters to zlib
WARNING: An error occurred reading PNG image
Loading /home/Archive/dev/mapping/unvanquished/map-tinymetro_src.pk3dir/./maps/tinymetro.map
entering /home/Archive/dev/mapping/unvanquished/map-tinymetro_src.pk3dir/./maps/tinymetro.map
--- SetupGrid ---
Grid size = { 64, 64, 128 }
   495040 grid points
       66 point lights
        0 spotlights
     2194 diffuse (area) lights
        0 sun/sky lights
     2176 total lights
       84 culled lights
--- TraceGrid ---
[New Thread 0x7fffeb364700 (LWP 27417)]
0[New Thread 0x7fffeab63700 (LWP 27418)]
[New Thread 0x7fffea362700 (LWP 27419)]
[New Thread 0x7fffe9b61700 (LWP 27420)]
[New Thread 0x7fffe9360700 (LWP 27421)]
[New Thread 0x7fffe8b5f700 (LWP 27422)]
[New Thread 0x7fffe3fff700 (LWP 27423)]
[New Thread 0x7fffe37fe700 (LWP 27424)]
...1...2...3...4...5...6...7...8...9...[Thread 0x7fffe9b61700 (LWP 27420) exited]
[Thread 0x7fffe8b5f700 (LWP 27422) exited]
[Thread 0x7fffeb364700 (LWP 27417) exited]
[Thread 0x7fffea362700 (LWP 27419) exited]
[Thread 0x7fffe37fe700 (LWP 27424) exited]
[Thread 0x7fffe3fff700 (LWP 27423) exited]
[Thread 0x7fffe9360700 (LWP 27421) exited]
[Thread 0x7fffeab63700 (LWP 27418) exited]
 (121)
130 x 224 x 17 = 495040 grid
--- MapRawLightmap ---
[New Thread 0x7fffe37fe700 (LWP 27971)]
0[New Thread 0x7fffe3fff700 (LWP 27972)]
[New Thread 0x7fffe8b5f700 (LWP 27973)]
[New Thread 0x7fffe9360700 (LWP 27974)]
[New Thread 0x7fffeb364700 (LWP 27975)]
[New Thread 0x7fffeab63700 (LWP 27976)]
[New Thread 0x7fffea362700 (LWP 27977)]
[New Thread 0x7fffe9b61700 (LWP 27978)]
...1...2...3...4...5...6...7...8...9...[Thread 0x7fffeb364700 (LWP 27975) exited]
[Thread 0x7fffe9360700 (LWP 27974) exited]
[Thread 0x7fffe37fe700 (LWP 27971) exited]
[Thread 0x7fffe8b5f700 (LWP 27973) exited]
[Thread 0x7fffe3fff700 (LWP 27972) exited]
[Thread 0x7fffeab63700 (LWP 27976) exited]
[Thread 0x7fffe9b61700 (LWP 27978) exited]
 (0)
[Thread 0x7fffea362700 (LWP 27977) exited]
   162156 luxels
   131188 luxels mapped
    11702 luxels occluded
--- FloodlightRawLightmap ---
[New Thread 0x7fffe9b61700 (LWP 27979)]
0.[New Thread 0x7fffea362700 (LWP 27980)]
..1[New Thread 0x7fffeab63700 (LWP 27981)]
.[New Thread 0x7fffeb364700 (LWP 27982)]
[New Thread 0x7fffe9360700 (LWP 27983)]
.[New Thread 0x7fffe8b5f700 (LWP 27984)]
[New Thread 0x7fffe3fff700 (LWP 27985)]
[New Thread 0x7fffe37fe700 (LWP 27986)]
.2...3...4...5...6...7...8...9... (0)
[Thread 0x7fffe37fe700 (LWP 27986) exited]
        0 custom lightmaps floodlighted
[Thread 0x7fffe3fff700 (LWP 27985) exited]
[Thread 0x7fffe8b5f700 (LWP 27984) exited]
[Thread 0x7fffe9360700 (LWP 27983) exited]
[Thread 0x7fffeb364700 (LWP 27982) exited]
[Thread 0x7fffeab63700 (LWP 27981) exited]
[Thread 0x7fffea362700 (LWP 27980) exited]
[Thread 0x7fffe9b61700 (LWP 27979) exited]
     2176 total lights
        0 culled lights
--- IlluminateRawLightmap ---
[New Thread 0x7fffe37fe700 (LWP 27987)]
0[New Thread 0x7fffe3fff700 (LWP 27988)]
[New Thread 0x7fffe8b5f700 (LWP 27989)]
[New Thread 0x7fffe9360700 (LWP 27990)]
[New Thread 0x7fffeb364700 (LWP 27991)]
[New Thread 0x7fffeab63700 (LWP 27992)]
[New Thread 0x7fffea362700 (LWP 27993)]
[New Thread 0x7fffe9b61700 (LWP 27994)]
...1...2...3...4...5...6...7...8...9...[Thread 0x7fffe8b5f700 (LWP 27989) exited]
[Thread 0x7fffeb364700 (LWP 27991) exited]
[Thread 0x7fffe9360700 (LWP 27990) exited]
[Thread 0x7fffea362700 (LWP 27993) exited]
[Thread 0x7fffe9b61700 (LWP 27994) exited]
[Thread 0x7fffe3fff700 (LWP 27988) exited]

^C
Thread 1 "q3map2" received signal SIGINT, Interrupt.
0x00007ffff705898d in pthread_join (threadid=140737010198272, thread_return=0x0) at pthread_join.c:90
90  pthread_join.c: Aucun fichier ou dossier de ce type.
(gdb) set backtrace limit 0
(gdb) thread apply all backtrace

Thread 31 (Thread 0x7fffeab63700 (LWP 27992)):
#0  0x00005555555c277d in TraceTriangle ()
#1  0x00005555555c3af1 in TraceLine ()
#2  0x00005555555b31b1 in LightContributionToSample ()
#3  0x00005555555cce6a in IlluminateRawLightmap ()
#4  0x0000555555587b6f in ThreadWorkerFunction ()
#5  0x00007ffff70576ca in start_thread (arg=0x7fffeab63700) at pthread_create.c:333
#6  0x00007ffff67000af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 26 (Thread 0x7fffe37fe700 (LWP 27987)):
#0  0x00005555555c3aaa in TraceLine ()
#1  0x00005555555b31b1 in LightContributionToSample ()
#2  0x00005555555cce6a in IlluminateRawLightmap ()
#3  0x0000555555587b6f in ThreadWorkerFunction ()
#4  0x00007ffff70576ca in start_thread (arg=0x7fffe37fe700) at pthread_create.c:333
#5  0x00007ffff67000af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7ffff7fa5740 (LWP 27399)):
#0  0x00007ffff705898d in pthread_join (threadid=140737010198272, thread_return=0x0) at pthread_join.c:90
#1  0x0000555555588059 in RunThreadsOn ()
#2  0x0000555555587bb8 in RunThreadsOnIndividual ()
#3  0x00005555555b6411 in LightWorld ()
#4  0x00005555555ba249 in LightMain ()
#5  0x00005555555e1887 in main ()
(gdb) c
Continuing.
[Thread 0x7fffeab63700 (LWP 27992) exited]
^C
Thread 1 "q3map2" received signal SIGINT, Interrupt.
0x00007ffff705898d in pthread_join (threadid=140737010198272, thread_return=0x0) at pthread_join.c:90
90  in pthread_join.c
(gdb) thread apply all backtrace

Thread 26 (Thread 0x7fffe37fe700 (LWP 27987)):
#0  0x00005555555c2681 in TraceTriangle ()
#1  0x00005555555c3af1 in TraceLine ()
#2  0x00005555555b31b1 in LightContributionToSample ()
#3  0x00005555555cce6a in IlluminateRawLightmap ()
#4  0x0000555555587b6f in ThreadWorkerFunction ()
#5  0x00007ffff70576ca in start_thread (arg=0x7fffe37fe700) at pthread_create.c:333
#6  0x00007ffff67000af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7ffff7fa5740 (LWP 27399)):
#0  0x00007ffff705898d in pthread_join (threadid=140737010198272, thread_return=0x0) at pthread_join.c:90
#1  0x0000555555588059 in RunThreadsOn ()
#2  0x0000555555587bb8 in RunThreadsOnIndividual ()
#3  0x00005555555b6411 in LightWorld ()
#4  0x00005555555ba249 in LightMain ()
#5  0x00005555555e1887 in main ()
Continuing.
 (957)
[Thread 0x7fffe37fe700 (LWP 27987) exited]
   162156 luxels illuminated
--- IlluminateVertexes ---
[New Thread 0x7fffe9b61700 (LWP 32697)]
0[New Thread 0x7fffea362700 (LWP 32698)]
[New Thread 0x7fffeab63700 (LWP 32699)]
[New Thread 0x7fffeb364700 (LWP 32700)]
[New Thread 0x7fffe9360700 (LWP 32701)]
[New Thread 0x7fffe8b5f700 (LWP 32702)]
[New Thread 0x7fffe3fff700 (LWP 32703)]
[New Thread 0x7fffe37fe700 (LWP 32704)]
...1...2...3...4...5...6...7...8...9...[Thread 0x7fffe9360700 (LWP 32701) exited]
[Thread 0x7fffeb364700 (LWP 32700) exited]
[Thread 0x7fffe8b5f700 (LWP 32702) exited]
[Thread 0x7fffe9b61700 (LWP 32697) exited]
[Thread 0x7fffeab63700 (LWP 32699) exited]
[Thread 0x7fffe3fff700 (LWP 32703) exited]
[Thread 0x7fffe37fe700 (LWP 32704) exited]
 (38)
[Thread 0x7fffea362700 (LWP 32698) exited]
    27965 vertexes illuminated
--- StoreSurfaceLightmaps ---
Subsampling...collapsing...sorting...allocating...storing...
projecting...done.
   153417 luxels used
        0 luxels stored (0.00 percent efficiency)
     2903 solid surface lightmaps
     3800 identical surface lightmaps, using 40158 luxels
        0 vertex forced surfaces
        0 vertex approximated surfaces
        1 BSP lightmaps
        1 total lightmaps
       69 unique lightmap/shader combinations
Writing /mnt/tmpfs/tmpwdkxi1tw_tinymetro.bsp_transient.dir/maps/tinymetro.bsp
Wrote 5.9 MB (6157396 bytes)
     1118 seconds elapsed
[Inferior 1 (process 27399) exited normally]