Memory leak

[BobOmbuzal]

Server crashes when draconis is enabled, when i join and there are dragons around, moving:

2024-04-01 17:25:00: ERROR[Server]: An unhandled exception occurred: C++ out of memory
2024-04-01 17:25:00: ERROR[Server]: In thread 7f04dbfff700:
2024-04-01 17:25:00: ERROR[Server]: /mnt/mt/minetest/src/server.cpp:8c: virtual void* ServerThread::run(): A fatal error occurred: C++ out of memory

Tested versions:

• git master
• 2.0.5
• 2.0.4
• 2.0.3

[BobOmbuzal]

Weird, i disabled draconis and it still crashes
the only mods i got are creatura, animalia, draconis
when i disabled animalia too mt works again.
enabled animalia again, still works
enabled draconis again, mt crashes
disabled animalia, mt works
sometimes it works for ~30min until it crashes

[BobOmbuzal]

Probably related ElCeejo/animalia#94

[BarbeRousseLibre]

Hello,

You should probably, to confirm your problem is somehow related to mine, do the instruction in my topic to create a simple logmem mods and checks for the amount of memory usage used by LUA compared to the minetestserver process.

I use the dumb-bash script below of my doing to write into a log file the every-5-seconds amount of RAM usage by the whole minetestserver process:

#!/bin/bash 

SERVER_NAME="servername"
LOG_DIR="/PATH/TO/YOUR/LOGDIR/$SERVER_NAME"
LOG_FILE="NAME_OF_YOUR_LOGFILE_$SERVER_NAME.log"
LOG_PATH="$LOG_DIR/$LOG_FILE"
REFRESH_RATE=5

while true
do
	echo -e "--- * --- * --- * ---\n" >> $LOG_PATH
	echo -e $(date +"%d-%m-%Y %H:%M:%S") "\n"  >> $LOG_PATH
	ps -eo size,pid,user,command --sort -size |     awk '{ hr=$1/1024 ; printf("%13.2f Mb ",hr) } { for ( x=4 ; x<=NF ; x++ ) { printf("%s ",$x) } print "" }' |    cut -d "" -f2 | cut -d "-" -f1 | grep "minetestserver" >> $LOG_PATH
	echo -e "\n --- * --- * --- * ---\n" >> $LOG_PATH
	sleep $REFRESH_RATE 
done

It's helpful, even if it's poorly written, to compare the amount of RAM used by LUA aside the whole minetestserver process, better, if it crash logs allows you to check after the RAMocalypse.

Also, should you not post also your OS parameters (as version), etc ? I guess it could be a problem on some OS and not others… Could maybe also a problem related to a specific version of a library on Windows, Linux, *BSD… You see my point, I think :).

If needed, for some reasons you can't do that yourself, just ask. Will be glad to give help to fix this, since it disallow me to play !

Regards,
GASPARD DE RENEFORT Kévin