After running arm64 for a few weeks, sometimes doing something ordinary, eg:
$ ls
or in this specific case
$ lynx http://such-and-such
I get this panic
[ 741378.628740] panic: /e: bad dir ino 584288256 at offset 0: null entry
And I fsck this disk till the cows come home, fsck -yf --- and no
errors are reported.
[ 3.086358] sd0: fabricating a geometry
[ 3.086358] sd0: 9314 GB, 9537536 cyl, 64 head, 32 sec, 512
bytes/sect x 19532873728 sectors
[ 3.103183] sd0: fabricating a geometry
[ 3.103183] sd0: GPT GUID: 7dfb7a5f-5343-491b-a518-d9c5641114c8
[ 3.103183] dk0 at sd0: "74b98416-ea2c-4bcd-b591-dcb7844ac861",
19532873661 blocks at 34, type: ffs