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Linux Editor crashed

Hello. I have error, when i tried open my c++ project :

 [2015.07.16-15.32.24:951][  0]LogMaterial: Missing cached shader map for material Widget3DPassThrough, compiling. 
 [2015.07.16-15.32.24:961][  0]LogMaterial: Missing cached shader map for material Widget3DPassThrough, compiling. 
 [2015.07.16-15.32.30:368][  0]LogMeshUtilities: Finished distance field build in 1.3s - 30x30x30 distance field, 12 triangles
 [2015.07.16-15.32.30:368][  0]LogMeshUtilities: Finished distance field build in 0.1s - 8x8x8 distance field, 192 triangles
 [2015.07.16-15.32.30:368][  0]LogMeshUtilities: Finished distance field build in 3.4s - 38x38x38 distance field, 528 triangles
 [2015.07.16-15.32.30:368][  0]LogMeshUtilities: Finished distance field build in 0.1s - 11x8x8 distance field, 4528 triangles
 [2015.07.16-15.32.30:384][  0]UdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
 [2015.07.16-15.32.30:875][  0]LogMaterial: Missing cached shader map for material DefaultSpriteMaterial, compiling. 
 [2015.07.16-15.32.30:881][  0]LogMaterial: Missing cached shader map for material DefaultSpriteMaterial, compiling. 
 **[0716/183231:FATAL:isolate_holder.cc(70)] Couldn't mmap v8 natives data file**
 [2015.07.16-15.32.35:449][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.16-15.32.35:459][  0]LogExit: Preparing to exit.
 [2015.07.16-15.32.35:462][  0]LogExit: Exiting.
 [2015.07.16-15.32.35:546][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.16-15.32.35:556][  0]LogExit: Preparing to exit.
 [2015.07.16-15.32.35:559][  0]LogExit: Exiting.
 [2015.07.16-15.32.35:589][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.16-15.32.35:599][  0]LogExit: Preparing to exit.
 [2015.07.16-15.32.35:602][  0]LogExit: Exiting.
 [2015.07.16-15.32.36:306][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.16-15.32.36:316][  0]LogExit: Preparing to exit.
 [2015.07.16-15.32.36:320][  0]LogExit: Exiting.
 [2015.07.16-15.32.37:319][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.16-15.32.37:329][  0]LogExit: Preparing to exit.
 [2015.07.16-15.32.37:333][  0]LogExit: Exiting.
 

What I do wrong? Best regards.

Product Version: UE 4.8
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asked Jul 16 '15 at 03:39 PM in Linux

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garrydvaraza
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There's no crash in the log, and tat isolate_holder line doesn't seem related to our code. Run the editor under gdb (pass the path to .uproject as argument to avoid it starting another instance) and if it crashes, please paste the callstack.

What is your OS and drivers?

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answered Jul 16 '15 at 04:06 PM

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RCL STAFF
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avatar image garrydvaraza Jul 20 '15 at 08:20 AM

Hello, RCL! I worked in gnu Linux(Ubuntu 14.04) and I installed drivers for Invidia. I have started ./UE4Editor-Linux-Debug /home/garry/ue4projects/MyProject.uproject and i get this log

 l Widget3DPassThrough, compiling. 
 [2015.07.20-08.10.55:844][  0]LogMaterial: Missing cached shader map for material Widget3DPassThrough, compiling. 
 [2015.07.20-08.11.04:958][  0]LogMeshUtilities: Finished distance field build in 6.1s - 30x30x30 distance field, 12 triangles
 [2015.07.20-08.11.04:958][  0]LogMeshUtilities: Finished distance field build in 0.2s - 8x8x8 distance field, 192 triangles
 [2015.07.20-08.11.05:061][  0]UdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
 [2015.07.20-08.11.06:380][  0]LogMaterial: Missing cached shader map for material DefaultSpriteMaterial, compiling. 
 [2015.07.20-08.11.06:406][  0]LogMaterial: Missing cached shader map for material DefaultSpriteMaterial, compiling. 
 [0720/111107:FATAL:isolate_holder.cc(70)] Couldn't mmap v8 natives data file
 Emergency stop (memory dump)
 garry@betonomeshalka:~/UnrealEngineSource/UnrealEngine/Engine/Binaries/Linux$ [2015.07.20-08.11.09:734][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.20-08.11.09:744][  0]LogExit: Preparing to exit.
 [2015.07.20-08.11.09:748][  0]LogExit: Exiting.
 [2015.07.20-08.11.10:375][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.20-08.11.10:385][  0]LogExit: Preparing to exit.
 [2015.07.20-08.11.10:388][  0]LogExit: Exiting.
 [2015.07.20-08.11.10:447][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.20-08.11.10:457][  0]LogExit: Preparing to exit.
 [2015.07.20-08.11.10:460][  0]LogExit: Exiting.
 [2015.07.20-08.11.11:361][  0]LogGenericPlatformMisc: FPlatformMisc::RequestExit(0)
 [2015.07.20-08.11.11:371][  0]LogExit: Preparing to exit.
 [2015.07.20-08.11.11:374][  0]LogExit: Exiting.

 
avatar image RCL STAFF Jul 20 '15 at 01:01 PM

This line:

[0720/111107:FATAL:isolate_holder.cc(70)] Couldn't mmap v8 natives data file Emergency stop (memory dump)

is baffling. Could you please start the editor under gdb and then type

r ~/ue4rojects/MyProject.uproject

and, upon the crash

bt

and then paste the resulting callstack?

avatar image garrydvaraza Jul 20 '15 at 01:31 PM

Im sorry. I get message "Failed to open descriptor file 'MyProject.uproject'"

 **garry@betonomeshalka:~/ue4projects/myproject$ gdb ~/UnrealEngineSource/UnrealEngine/Engine/Binaries/Linux/UE4Editor-Linux-Debug** 
 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 
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
 and "show warranty" for details.
 This GDB was configured as "x86_64-linux-gnu".
 Type "show configuration" for configuration details.
 For bug reporting instructions, please see:
 .
 Find the GDB manual and other documentation resources online at:
 .
 For help, type "help".
 Type "apropos word" to search for commands related to "word"...
 Reading symbols from /home/garry/UnrealEngineSource/UnrealEngine/Engine/Binaries/Linux/UE4Editor-Linux-Debug...done.
 **(gdb) r MyProject.uproject** 
 Starting program: /home/garry/UnrealEngineSource/UnrealEngine/Engine/Binaries/Linux/UE4Editor-Linux-Debug MyProject.uproject
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
 Traceback (most recent call last):
   File "/usr/share/gdb/auto-load/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19-gdb.py", line 63, in 
     from libstdcxx.v6.printers import register_libstdcxx_printers
 ImportError: No module named 'libstdcxx'
 Using binned.
 Increasing per-process limit of core file size to infinity.
 [New Thread 0x7fffcabeb700 (LWP 16626)]
 Exiting abnormally (error code: 1)
 [Thread 0x7ffff7f857c0 (LWP 16622) exited]
 [Inferior 1 (process 16622) exited with code 01]
 (gdb) 



avatar image garrydvaraza Jul 22 '15 at 07:43 AM

I found error. Reason of error was a plugin what I used(BLUI).

Ty RCL for reply.

avatar image RCL STAFF Jul 22 '15 at 06:07 PM

Yw. Good to know!

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