port-evbarm/53172: NetBSD on Pine64 reboots after a while

[alexo6592%aol.com@localhost]

>Number:         53172
>Category:       port-evbarm
>Synopsis:       NetBSD on Pine64 reboots after a while
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-evbarm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 10 15:55:01 +0000 2018
>Originator:     Alex Junge
>Release:        8.99.14
>Organization:
>Environment:
NetBSD armv7 8.99.14 NetBSD 8.99.14 (SUNXI) #0:  Sun Mar 18 13:18:39 UTC 2018 mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/evbarm/compile/SUNXI evbarm

NetBSD armv7 8.99.14 NetBSD 8.99.14 (SUNXI) #0 Apr 10:17:52 UTC 2018 mkrepro.NetBSD.org:/usr/src/sys/arch/evbarm/compile/SUNXI evbarm
>Description:
I've found no pattern to how long it takes for it to happen) it will reboot without warning.  This particular pineboard is the 512 MB model, and I used the image provided by invisible.ca/arm, which is the link from the Pine64 wiki.
>How-To-Repeat:
Simply leave the pine64 board on for a while
>Fix:
None