Commit Graph

201846 Commits

Author SHA1 Message Date
Konstantin Belousov
8954a9a4e6 Add the atomic_thread_fence() family of functions with intent to
provide a semantic defined by the C11 fences with corresponding
memory_order.

atomic_thread_fence_acq() gives r | r, w, where r and w are read and
write accesses, and | denotes the fence itself.

atomic_thread_fence_rel() is r, w | w.

atomic_thread_fence_acq_rel() is the combination of the acquire and
release in single operation.  Note that reads after the acq+rel fence
could be made visible before writes preceeding the fence.

atomic_thread_fence_seq_cst() orders all accesses before/after the
fence, and the fence itself is globally ordered against other
sequentially consistent atomic operations.

Reviewed by:	alc
Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2015-07-08 18:12:24 +00:00
Alan Cox
22cf98d1f3 The intention of r254304 was to scan the active queue continuously.
However, I've observed the active queue scan stopping when there are
frequent free page shortages and the inactive queue is steadily refilled
by other mechanisms, such as the sequential access heuristic in vm_fault()
or madvise(2).  To remedy this problem, record the time of the last active
queue scan, and always scan a number of pages proportional to the time
since the last scan, regardless of whether that last scan was a
timeout-triggered ("pass == 0") or free-page-shortage-triggered ("pass >
0") scan.

Also, on a timeout-triggered scan, allow a full scan of the active queue
when the system is short of inactive pages.

Reviewed by:	kib
MFC after:	6 weeks
Sponsored by:	EMC / Isilon Storage Division
2015-07-08 17:45:59 +00:00
Luigi Rizzo
613ab60283 add an extra tty for picobsd builds 2015-07-08 16:42:28 +00:00
Luigi Rizzo
e4405be58b trap some errors when building picobsd 2015-07-08 16:41:25 +00:00
Hiroki Sato
64bb8a3881 Implement PF_IMMUTABLE flag and apply it to "name" and "jid" in
jail.conf parameters.  This flag disallows redefinition of the parameter.

"name" and/or "jid" are automatically defined in jail.conf by using
the jail names at the front of jail parameter definitions.  However,
one could override them by using a variable with the same name like
$name = "foo".  This confused the parser and could end up with SIGSEGV.

Note that this change also affects a case when all of parameters are
defined in the command line arguments, not in jail.conf.  Specifically,
"jail -c name=j1 name=j2" no longer works.  This should be harmless.

PR:		196574
Reviewed by:	jamie
Differential Revision:	https://reviews.freebsd.org/D3017
2015-07-08 16:37:48 +00:00
Pedro F. Giffuni
850c6f5fd2 cosmetic: whitespaces-tab before EOL
Obtained from:	cpi-llvm project
2015-07-08 16:35:24 +00:00
Pedro F. Giffuni
5d0bef91b7 Use the __sentinel attribute.
Start using the gcc sentinel attribute, which can be used to
mark varargs function that need a NULL pointer to mark argument
termination, like execl(3).

Relnotes:	yes
2015-07-08 16:21:10 +00:00
Patrick Kelsey
8bdc5a6251 MFV r285191: tcpdump 4.7.4.
Also, the changes made in r272451 and r272653 that were lost in the
merge of 4.6.2 (r276788) have been restored.

PR: 199568
Differential Revision: https://reviews.freebsd.org/D3007
Reviewed by: brooks, hiren
Approved by: jmallett (mentor)
MFC after: 1 month
2015-07-08 16:19:32 +00:00
Andrew Turner
6bae05d951 Correctly set __WCHAR_MIN, there is no __UINT_MIN, it's 0.
Sponsored by:	ABT Systems Ltd
2015-07-08 16:18:28 +00:00
Patrick Kelsey
fe3ff217dd Replace use of .Po Pc with the preferred .Pq for single line
enclosures in iovctl.conf(5), iovctl(8), pci(9), and
pci_iov_schema(9).

Differential Revision: https://reviews.freebsd.org/D3000
Reviewed by: wblock
Approved by: jmallett (mentor)
2015-07-08 16:16:44 +00:00
Andrew Turner
ded32d88f1 Add support for ipi_all_but_self on arm64.
Obtained from:	ABT Systems Ltd
Sponsored by:	The freeBSD Foundation
2015-07-08 15:32:59 +00:00
Andrew Turner
80ad08a3e9 Add an implementation of savectx that doesn't just call panic.
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2015-07-08 14:07:06 +00:00
Zbigniew Bodek
4981c60e07 Add memory barrier to bus_dmamap_sync()
On platforms which are fully IO-coherent, the map might be null.
We need to guarantee that all data is observable after the
sync operation is called. Add a memory barrier to ensure that on ARM.

Reviewed by:   andrew, kib
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3012
2015-07-08 13:52:59 +00:00
Konstantin Belousov
69d11def74 Handle copyout for the fcntl(F_OGETLK) using oflock structure.
Otherwise, kernel overwrites a word past the destination.

Submitted by:	walter@pelissero.de
PR:	196718
MFC after:	1 week
2015-07-08 13:19:13 +00:00
Andrew Turner
cb02f6b942 Send the correct signal when vm_fault fails. While here also set the code
and address fields.

Sponsored by:	ABT Systems Ltd
2015-07-08 12:42:44 +00:00
Glen Barber
e90b4979bb Document r283961, pw(8) '-R' option.
Sponsored by:	The FreeBSD Foundation
2015-07-08 12:07:50 +00:00
Conrad Meyer
80f295a415 Add myself to committers-src.dot
Approved by:	markj (mentor)
2015-07-08 03:20:28 +00:00
Hiroki Sato
882efc9ac2 Fix offset calculation in variable substitution
in jail.conf.  The following did not work correctly:

 A="A_${B}_C_${D}"
 B="BBBBB"
 D="DDDD_${E}_FFFFF"
 E="EEEEE"

PR:		189139
Reviewed by:	jamie
Differential Revision:	https://reviews.freebsd.org/D3018
2015-07-08 00:51:53 +00:00
Rick Macklem
c088e62e34 Since the case where secflavor < 0 indicates the security flavor is
to be negotiated, it could be a Kerberized mount. As such, filling
in the "principal" argument using the canonized host name makes sense.
If it is negotiated as AUTH_SYS, the "principal" argument is meaningless
but harmless.

Requested by:	masato@itc.naist.jp
Tested by:	masato@itc.naist.jp
PR:		201073
MFC after:	1 month
2015-07-07 23:41:25 +00:00
Baptiste Daroussin
59856c7d26 pw: fail if an invalid entry is found while parsing master.passwd and group
PR:		198554
Reported by:	diaran <fbsd@centraltech.co.uk>
MFC after:	2 days
2015-07-07 21:05:20 +00:00
John-Mark Gurney
a13589bc47 unroll the loop slightly... This improves performance enough to
justify, especially for CBC performance where we can't pipeline..  I
don't happen to have my measurements handy though...

Sponsored by:	Netflix, Inc.
2015-07-07 20:31:09 +00:00
Hiroki Sato
754f368cda - Add IPv6 support in quota(1). While rpc.rquotad has supported PF_INET6
for a long time, quota(1) utility supported only PF_INET.

- Clean up confusing changes in f_mntfromname.

- Add an entry for rquotad with rpc/udp6 to inetd.conf.

PR:	194084
2015-07-07 20:15:09 +00:00
Mark Johnston
620711e033 Fix an incorrect assertion in witness.
The number of available lock list entries for a thread is LOCK_CHILDCOUNT,
and each entry can record up to LOCK_NCHILDREN locks. When iterating over
the locks held by a thread, a bound on the loop index is therefore given
by LOCK_CHILDCOUNT * LOCK_NCHILDREN; WITNESS_COUNT is an unrelated
constant.

Reviewed by:	jhb
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D2974
2015-07-07 19:29:18 +00:00
Edward Tomasz Napierala
a238a79872 Fix markup.
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2015-07-07 19:23:59 +00:00
Luiz Otavio O Souza
f935da6fee Add the Banana Pi DTS.
The Banana Pi support is in progress and this is intended to help the early
adopters.
2015-07-07 19:01:54 +00:00
Ed Maste
0b0796a3dc lldb: use .PATH to find man page instead of symlinking it
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2015-07-07 18:46:41 +00:00
John-Mark Gurney
748a12e2c3 we may get here w/ non-sleepable locks held, so switch to _NOWAIT when
doing this memory allocation...

Reviewed by:	ae
2015-07-07 18:45:32 +00:00
Ed Maste
906451276a Avoid creating invalid UEFI device path
The UEFI loader on the 10.1 release install disk (disc1) modifies an
existing EFI_DEVICE_PATH_PROTOCOL instance in an apparent attempt to
truncate the device path.  In doing so it creates an invalid device
path.

Perform the equivalent action without modification of structures
allocated by firmware.

PR:		197641
MFC After:	1 week
Submitted by:	Chris Ruffin <chris.ruffin@intel.com>
2015-07-07 18:44:27 +00:00
Luiz Otavio O Souza
f4b61a34e5 Add the GMAC entries to sun7i (A20) DTS.
While here make EMAC disabled unless explicitly enabled.
2015-07-07 18:32:23 +00:00
Takanori Watanabe
99043514c6 Fix rfcomm_sppd regression I could reproduced.
To reproduce it, Two machine running FreeBSD and
run
rfcomm_sppd -c 3 -S
rfcomm_sppd -a ${PEER} -c 3
on each side.
2015-07-07 15:56:51 +00:00
Pedro F. Giffuni
9129dd59be Relocate sched_random() within the SMP section.
Place sched_random nearer to where it's first used: moving the
code nearer to where it  is used makes the code easier to read
and we can reduce the initial "#ifdef SMP" island.

Reword a little the comment and clean some whitespaces
while here.
2015-07-07 15:22:29 +00:00
Edward Tomasz Napierala
c886a05c13 Remove reboot.S (part of libc). It's not needed and was actually
broken - returning 0 from reboot(2) resulted in SIGBUS.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-07-07 09:25:51 +00:00
Michael Tuexen
29b9533b43 Export the ssthresh value per SCTP path via the sysctl interface.
MFC after: 1 month
2015-07-07 06:34:28 +00:00
Glen Barber
9efc2aa4a6 Sort by svn revision.
Fix a few FDP style nits.

Sponsored by:	The FreeBSD Foundation
2015-07-07 04:09:35 +00:00
Adrian Chadd
54991f37c9 Attempt to make 5GHz HT/40 work on the 6xxx series NICs.
The 6205 (Taylor Peak) in the Lenovo X230 works fine in 5GHz 11a and 11n HT20,
but not 11n HT40.  The NIC goes RX deaf the moment HT40 is configured.
It's so RX deaf that it doesn't even hear beacons and the firmware sends
"BEACON MISS" events.  That's pretty deaf.

I tried configuring up the HT40 flags in monitor mode and it worked - so
I assumed that doing the transition from 20 -> 40MHz channel configuration
when going auth->assoc (ie, after the NIC has been partially configured)
is a problem.

So for now, let's just always set them if they're available.

Tested:

* Intel 5300, STA mode, 5GHz HT/40 AP; 2GHz HT/20 AP
* Intel 6205, STA mode, 5GHz HT/40, HT20, 11a AP; 2GHz HT/20 AP

This was pointed out to me by coworkers trying to use FreeBSD-HEAD
in the office on their Thinkpad T420p laptops.

TODO:

* I don't like how the HT40 flags are configured - the whole interop/
  protection config should be re-checked.  Notably, I think curhtprotmode
  is 0 in a lot of cases, which means "no interoperability" and i think
  that's busted.

Sponsored by:	Norse Corp, Inc.
2015-07-07 03:51:29 +00:00
Gregory Neil Shapiro
8265877704 Note merge to head for sendmail 8.15.2 along with a special note for those
upgrading to FreeBSD 11.

MFC after:	3 days
2015-07-07 03:06:56 +00:00
Gregory Neil Shapiro
ab1f4a428a Add warning about change of behavior for sendmail 8.15.2 under FreeBSD 11
with regards to IPv6 address representation in configuration/maps/rulesets.
2015-07-07 03:03:17 +00:00
Gregory Neil Shapiro
382cb225f1 Update for sendmail 8.15.2 import
MFC after:	3 days
2015-07-07 03:02:07 +00:00
Gregory Neil Shapiro
55c311792e Minor changes to force commit these files so new freebsd*.cf files are
built to use the new sendmail-8.15.2/cf tree.

MFC after:	3 days
2015-07-07 03:00:57 +00:00
Gregory Neil Shapiro
da7d7b9c86 Merge sendmail 8.15.2 to HEAD
MFC after:	3 days
2015-07-07 02:59:02 +00:00
Justin Hibbits
7f78865ba0 Enable the wireless on attach.
This comes from the archives of "forgotten in the original commit, and probably
pointless now because nobody uses it, and the driver's broken anyway."
2015-07-07 02:42:48 +00:00
Justin Hibbits
44027a8321 style(9) cleanups.
Don't use PRIxPTR, these registers are 32-bits, cast to u_long instead.

Pointed out by:	bde
2015-07-07 02:37:29 +00:00
Gregory Neil Shapiro
2e6b47f29c libsm/path.c is about to disappear in the merge of sendmail 8.15.2. It is an
empty file now so it is safe to remove before the merge.

MFC after:	3 days
2015-07-07 02:35:06 +00:00
Gregory Neil Shapiro
ccbcdcd550 Temporarily disable WARNS while addressing a non-issue with the upstream code 2015-07-07 02:30:35 +00:00
Navdeep Parhar
9af71ab3bc cxgbe(4): Add a new knob that controls the congestion response of netmap
rx queues.  The default is to drop rather than backpressure.

This decouples the congestion settings of NIC and netmap rx queues.

MFC after:	3 days
2015-07-06 20:56:59 +00:00
Navdeep Parhar
41f7622b64 cxgbe(4): Do not override the the global defaults for congestion drops.
The hw.cxgbe.cong_drop knob is not affected by this change because the
driver sets up congestion drop on a per-queue basis.

MFC after:	3 days
2015-07-06 20:28:42 +00:00
Warner Losh
abb14e5ded The results of the vote are in. This reflects that vote. Single
line statements inside of braces is recognized as an acceptable
style.
	http://reviews.freebsd.org/V3
As always, this isn't license for wholesale change, etc.
2015-07-06 20:10:47 +00:00
Neel Natu
5e4f29c037 Move the 'devmem' device nodes from /dev/vmm to /dev/vmm.io
Some external tools just do a 'ls /dev/vmm' to figure out the bhyve virtual
machines on the host. These tools break if the devmem device nodes also
appear in /dev/vmm.

Requested by:	grehan
2015-07-06 19:41:43 +00:00
Neel Natu
ccfe4c3f74 Always assert DCD and DSR in bhyve's uart emulation.
The /etc/ttys entry for a serial console in FreeBSD/x86 is as follows:
ttyu0   "/usr/libexec/getty 3wire"      vt100   onifconsole secure

The initial terminal type passed to getty(8) is "3wire" which sets the
CLOCAL flag. However reset(1) clears this flag and any programs that try
to open the terminal will hang waiting for DCD to be asserted.

Fix this by always asserting DCD and DSR in the emulated uart.

The following discussion on virtualization@ has more details:
https://lists.freebsd.org/pipermail/freebsd-virtualization/2015-June/003666.html

Reported by: jmg
Discussed with: grehan
2015-07-06 19:33:29 +00:00
John-Mark Gurney
5a550cca9a Fix for non-random IV's when CRD_F_IV_PRESENT and CRD_F_IV_EXPLICIT
flags are not specified... This bug was introduced in r275732...

This only affects IPsec ESP only policies w/ the aesni module loaded,
other subsystems specify one or both of the flags...

Reviewed by:	gnn, delphij, eri
2015-07-06 19:30:29 +00:00