Thanks for the hint about /var/log.  Indeed, you are correct as the OOM (Out of memory) error is there:

username@computername:~$ grep nlvdw /var/log/syslog
Feb 23 19:05:39 computername kernel: [105834.424171] [26474]  1000 26474  2170623   645513 17096704   617348             0 nlvdw Feb 23 19:05:39 computername kernel: [105834.424178] Out of memory: Kill process 26474 (nlvdw) score 713 or sacrifice child Feb 23 19:05:39 computername kernel: [105834.424199] Killed process 26474 (nlvdw) total-vm:8682492kB, anon-rss:2582048kB, file-rss:4kB, shmem-rss:0kB Feb 23 19:05:39 computername kernel: [105835.094146] oom_reaper: reaped process 26474 (nlvdw), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

On 2/23/2020 9:03 PM, Laurence Marks wrote:
Sounds like it was an OOM error [1]. There should be something in the system logs (e.g. /var/log). Since OOM handling is performed by the kernel it is not simple to trap this.

[1] e.g. https://en.m.wikipedia.org/wiki/Out_of_memory
_____
Professor Laurence Marks
"Research is to see what everybody else has seen, and to think what nobody else has thought", Albert Szent-Gyorgi
www.numis.northwestern.edu <http://www.numis.northwestern.edu>
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