Have you had experiences for executing a long running process but it was terminated for no obvious reasons?
The cause for such issue could be many; what you can do is try to read the logging messages from kernel to figure out why.
Kernel logs messages in the kernel ring buffer,; and there are tools to help you print out those messages to
For detailed usage of
man dmesg in your terminal. When a process is terminated by a kernel, it usually
logs the reason why the process was killed, and
dmesg should be able to give you some hints.
There was once I found a process I ran crashed for no reason, and there was no core dump produced along with that
crash. Then I did the follwing with the terminated process’s
dmesg | grep pid
Then I found it was killed by kernel because of ‘out of memory’ in the OS. Aparrently the terminated process used too much memory therefore killed by the kernel!