i'm running a FreeBSD 11.0-RELEASE vm in AWS EC2 with 3-4 jails on it and after
exactly one week, the vm seems to be freezing, i.e. sshd resets connections,
console frozen, ICMP replies for 1-2 days, then timeouts) no messages in the
logs, no messages on the screen.
I tried to reproduce this at home on Xen 4.4 with Linux 4.7 with small 256M
memory VMs and found while running "periodic daily & periodic weekly":
- With file-backed Swap: behaviour like above
- With block-backed Swap: behaviour like expected (heavy swapping, eventual
- Without Swap: behaviour like expected (killed due oom)
- With encrypted block-backed Swap: behaviour like above
Is this to be expected?
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