> Have you looked in /var/log/messages to see if the reboot process found a
> kernel core dump on swap?  If so, it should tell you what panic you have.

Unfortunately, the information in /var/log/messages starts at the same point
as dmesg :

  Jun  7 03:25:45 orthanc syslogd: restart
  Jun  7 03:25:45 orthanc /netbsd:  0xf22214b8) fp = 0xf22214b8
  Jun  7 03:25:45 orthanc /netbsd:   pc = 0xf0068124  args = (0xf01f3e08, 0x0, 0x0
, 0xa, 0x39, 0x9c, 0xf2221520) fp = 0xf2221520

There's nothing in /var/crash.

J

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