r362962 markj July 6, 2020, 2:52 p.m.
When refilling an rx freelist, make sure we only update the hardware
producer index if at least one cluster was allocated.  Otherwise the
NIC is programmed to write a previously used cluster, typically
resulting in a use-after-free when packet data is written by the

Also make sure that we don't update the fragment index cursor if the
last allocation attempt didn't succeed.  For at least Intel drivers,
iflib assumes that the consumer index and fragment index cursor stay in
lockstep, but this assumption was violated in the face of cluster
allocation failures.

Reported and tested by:	pho
Reviewed by:	gallatin, hselasky
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25489
r362958 luporl July 6, 2020, 11:57 a.m.
In the last IFUNC related changes to rtld, the code that handled non-PLT
GNU IFUNC relocations ended up getting lost. This could leave some
relocations unhandled, causing crashes or misbehavior. This change restores
the handling of these relocations, but now together with the other IFUNC
relocations, allowing resolvers to reference external symbols.

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D25550
r362957 0mp July 6, 2020, 10:05 a.m.
The manual page documents "\$" to expand to either "$" or "#" followed by
a single space. In reality, the single space character is not appended.

PR:		247791
Submitted by:	kd-dev@pm.me
MFC after:	7 days
r362956 0mp July 6, 2020, 9:53 a.m.
- Add a missing Pp [1]
- Remove uses of Tn
- Use "Xr open 2" when appropriate

PR:		247783 [1]
Submitted by:	PauAmma <pauamma@gundo.com> [1]
MFC after:	3 days
r362954 andrew July 6, 2020, 8:51 a.m.
This adds support for the Broadcom bcm2711 PCI express controller, found
on the Raspberry Pi 4 (aka the bcm2838 SoC). The driver has only been
developed against the soldered-on VIA XHCI controller and not tested
with other end points.

Submitted by:	Robert Crowston <crowston_protonmail.com>
Differential Revision:	https://reviews.freebsd.org/D25068
r362953 hselasky July 6, 2020, 8:50 a.m.
Currently the linking order of the infiniband, IB, modules decide in which
order the clients are attached and detached. For example one IB client may
use resources from another IB client. This can lead to a potential deadlock
at shutdown. For example if the ipoib is unregistered after the ib_multicast
client is detached, then if ipoib is using multicast addresses a deadlock may
happen, because ib_multicast will wait for all its resources to be freed before
returning from the remove method.

Fix this by using module_xxx_order() instead of module_xxx().

Differential Revision:	https://reviews.freebsd.org/D23973
MFC after:		1 week
Sponsored by:		Mellanox Technologies
r362952 grehan July 6, 2020, 8:36 a.m.
Allow guests to	set the	RTC bit	in the ACPI PM control register.
This eliminates an annoying	(and harmless) Linux kernel boot message.

PR:	244721
Submitted by:	Jose Luis Duran
MFC after:	1 week
r362951 mjg July 6, 2020, 2 a.m.
r362950 mjg July 5, 2020, 11:07 p.m.
While here assert on ls_threads state.
r362949 rmacklem July 5, 2020, 9:55 p.m.
Also, add a new function nfsm_add_ext_pgs() which will either add a page
or add a new ext_pgs mbuf with a page to the mbuf list. Used by nfsm_strtom().
This is another in the series of commits that add support to the NFS client
and server for building RPC messages in ext_pgs mbufs with anonymous pages.
This is useful so that the entire mbuf list does not need to be
copied before calling sosend() when NFS over TLS is enabled.

Since ND_EXTPG is never set yet, there is no semantic change at this time.
r362948 kib July 5, 2020, 8:54 p.m.
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
r362947 kaktus July 5, 2020, 7:53 p.m.
MFC after:	2 weeks
Sponsored by:	Mysterious Code Ltd.
r362946 hselasky July 5, 2020, 7:38 p.m.
Make sure sys/types.h is included before machine/vm.h.

PR:		247775
Submitted by:	pkubaj@
MFC after:	1 week
Sponsored by:	Mellanox Technologies
r362945 se July 5, 2020, 2:43 p.m.
that are built by default on -CURRENT after 2020-06-26.
r362944 andrew July 5, 2020, 2:38 p.m.
On architectures that use RELA relocations it is safe to rerun the ifunc
resolvers on after all CPUs have started, but while they are sill parked.

On arm64 with big.LITTLE this is needed as some SoCs have shipped with
different ID register values the big and little clusters meaning we were
unable to rely on the register values from the boot CPU.

Add support for rerunning the resolvers on arm64 and amd64 as these are
both RELA using architectures.

Reviewed by:	kib
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D25455