Re: kern/58033: Complete system crash dues to FFSv2 logging.

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

In general, NetBSD file systems have not (yet) been made resilient to
forced removal of the underlying storage volume, and may crash.

This isn't specific to ffsv2 logging; you can reproduce it in ffs
without logging, or in ext2fs.

We recommend mounting file systems from external media with `-o rump'
so they run in userspace and, in the event of removal of the media,
only crash a userspace process instead of crashing the whole kernel.