I am running a FreeBSD 11 Release (amd64) machine in which practically all the hardware is new (except the CPU which is an AMD Athlon X2 270 Regor, about 3 years in use). My board is a Gigabyte GA970-D3SP.
Till a couple of days back, I was facing a couple of issues on this system. Quite possibly, the culprit was a bad NVidia graphics card. I replaced that card with a new Sapphire Radeon card, and things have been much better. For 2 days since putting in the new card, the machine ran with no failure anywhere - but then in the afternoon today, it suddenly crashed once. The system generated a vmcore (about 700 MB).
Upon reboot (and fsck), the system has been running well again.
I have no skills debugging core files. But I wish to solicit expert help in trying to find out the root cause of the crash.
Any help would be greatly be appreciated.