vterm: errno 5 is not EOF.
vterm: errno 5 is not EOF.

Errno 5 is EIO: general low-level input/output error, NFS lock issue, etc.
See `man 2 read`.

0-byte read() return as an EOF signal is not BSD-specific; it's POSIX.

https://pubs.opengroup.org/onlinepubs/9699919799/ :

> If the starting position is at or after the end-of-file, 0 shall be returned.

inducer/urwid,urwid/urwid,urwid/urwid,wardi/urwid,wardi/urwid,urwid/urwid,inducer/urwid,wardi/urwid,inducer/urwid