The X86 version on ubuntu segfaults and coredumps when launching emulators on NUC d54250wyk (gdb stack trace included)

[arse]

Hi All,

Hopefuly this will be of use to a dev somewhere out there. Today I downloaded and built 4.1 but I've had a problem very similar to the one described here:

https://retropie.org.uk/forum/topic/4246/retropie-emulationstation-on-ubuntu-16-04-won-t-load-games

It seems to be affecting multiple emulators but I've picked one example.

runcommand.log contains this:

arse@nuc:/dev/shm$ cat runcommand.log
Parameters:
Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-caprice32/cap32_libretro.so --config /opt/retropie/configs/amstradcpc/retroarch.cfg "/home/arse/RetroPie/roms/amstradcpc/1001 BC (F) (1986) [a1].dsk" --appendconfig /dev/shm/retroarch.cfg
[libretro-cap32]: Got size: 384 x 272.
[libretro-cap32]: Got size: 384 x 272.
Retro SYSTEM_DIRECTORY /home/arse/RetroPie/BIOS
Retro SAVE_DIRECTORY /home/arse/RetroPie/roms/amstradcpc/
Retro CONTENT_DIRECTORY /home/arse/.config/retroarch/downloads
s(384,272,32) (0,0,0,0)
create surface XR8G8B8 libretro
Init nuklear 0
 0  x64
 1  /home/arse/RetroPie/roms/amstradcpc/1001 BC (F) (1986) [a1].dsk
/opt/retropie/supplementary/runcommand/runcommand.sh: line 961:  9423 Segmentation fault      (core dumped) /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-caprice32/cap32_libretro.so --config /opt/retropie/configs/amstradcpc/retroarch.cfg "/home/arse/RetroPie/roms/amstradcpc/1001 BC (F) (1986) [a1].dsk" --appendconfig /dev/shm/retroarch.cfg

I did a little digging/debugging which lead to the call stack below. I hope it can be of some use.

I will try to check back here in case I can provide more info or help out in some way.

arse@nuc:/dev/shm$ gdb  /opt/retropie/emulators/retroarch/bin/retroarch
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
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<http://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
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Reading symbols from /opt/retropie/emulators/retroarch/bin/retroarch...done.
(gdb) start -L /opt/retropie/libretrocores/lr-caprice32/cap32_libretro.so --config /opt/retropie/configs/amstradcpc/retroarch.cfg "/home/arse/RetroPie/roms/amstradcpc/1001 BC (F) (1986) [a1].dsk" --appendconfig /dev/shm/retroarch.cfg
Temporary breakpoint 1 at 0x410a20: file frontend/frontend.c, line 148.
Starting program: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-caprice32/cap32_libretro.so --config /opt/retropie/configs/amstradcpc/retroarch.cfg "/home/arse/RetroPie/roms/amstradcpc/1001 BC (F) (1986) [a1].dsk" --appendconfig /dev/shm/retroarch.cfg
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Temporary breakpoint 1, main (argc=8, argv=0x7fffffffe4f8) at frontend/frontend.c:148
148     frontend/frontend.c: No such file or directory.
(gdb) cont
Continuing.
[New Thread 0x7fffe1b23700 (LWP 9929)]
Retro SYSTEM_DIRECTORY /home/arse/RetroPie/BIOS
Retro SAVE_DIRECTORY /home/arse/RetroPie/roms/amstradcpc/
Retro CONTENT_DIRECTORY /home/arse/.config/retroarch/downloads
[libretro-cap32]: Got size: 384 x 272.
s(384,272,32) (0,0,0,0)
create surface XR8G8B8 libretro
Init nuklear 0
 0  x64
 1  /home/arse/RetroPie/roms/amstradcpc/1001 BC (F) (1986) [a1].dsk
[libretro-cap32]: Got size: 384 x 272.
[New Thread 0x7fffe0de1700 (LWP 9930)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe0de1700 (LWP 9930)]
0x0000000000000000 in ?? ()
(gdb) where
#0  0x0000000000000000 in ?? ()
#1  0x00000000004f8572 in rglgen_resolve_symbols_custom (map=0x60c840 <rglgen_symbol_map>, proc=0x0)
    at libretro-common/glsym/rglgen.c:34
#2  rglgen_resolve_symbols (proc=0x0) at libretro-common/glsym/rglgen.c:41
#3  0x00000000004f2e6d in gl_init (video=0x8eeea0, input=0x874048 <current_input>,
    input_data=0x874040 <current_input_data>) at gfx/drivers/gl.c:1923
#4  0x00000000004df4bd in video_thread_handle_packet (incoming=0x7fffe0de0a20, thr=0x8eee80)
    at gfx/video_thread_wrapper.c:342
#5  video_thread_loop (data=0x8eee80) at gfx/video_thread_wrapper.c:591
#6  0x00000000004dc9cf in thread_wrap (data_=0x8d98a0) at libretro-common/rthreads/rthreads.c:105
#7  0x00007ffff74696ba in start_thread (arg=0x7fffe0de1700) at pthread_create.c:333
#8  0x00007ffff168f82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109```