receive overflow errors re-instating the default behavior to
silently ignore them as before 2018-03-19.
- Introduce a new kern.sooptions sysctl to control the default
behavior of socket options. Setting this to 0x4000 (SO_RERROR),
turns on receive overflow error reporting for all sockets.
- Change dhcpcd to turn on SO_RERROR on all its sockets.
As discussed in tech-net.
in January 2009 (the Christos' time merge, when time_t went to 64 bits).
sysctl needs to catch up. (So do other progs, which will happen, eventually,
but most of them are unaffected in any practical way.)
If you are running a system (NetBSD 6 or later) without this change, try
sysctl -nn kern.boottime
and marvel at the result (in theory, seconds.microseconds) most
probably being something like:
jinx$ sysctl -nn kern.boottime
1540801874.999995564
(There is a 1 in 1000 chance your system will have booted
in the interval [0 , 999999] nanoseconds after some second,
in which case this will not be observed. You should get
(almost) the same value after this change - just now it is as
it should be (there should now always be 9 digits after the '.').
On the other hand, if you're on a big-endian 64 bit host (running
64 bit sysctl) you would have always seen 0 for the microseconds field.
That should be fixed by this.
In sysctl(7) also document what we mean by "the time the system booted".
XXX Pullup -8
XXX Pullup -7
XXX Pullup -6 (oops, missed that one...)
when unmounting tmpfs file systems at shutdown time, avoid unmounting
a tmpfs created by init on /dev - behaviour overridable from rc.conf.
By default all tmpfs that have device nodes are not mounted.
NORMAL -> SUSPENDING -> SUSPENDED
and add operation fstrans_start_lazy() that only blocks while SUSPENDED.
Change vndthread() support operation handle_with_rdwr() to bracket
its file system operations by fstrans_start_lazy() and fstrans_done().
PR kern/53624 (dom0 freeze on domU exit)
is of poor quality, and is now an obstacle to MP-ification. It was removed
ten years ago from FreeBSD for the same reason.
This retires a big user of the mbuf API, and will ease maintenance of the
kernel.
