descriptors, we will want to allocate a new descriptor without installing
it in the FD array.
Split falloc() into falloc_noinstall() and finstall(), and rewrite
falloc() to call them with appropriate atomicity.
Approved by: mentor (rwatson), re (bz)
more explicit comments about what's going on and what future maintainers
need to do when e.g. adding a new operation to a sys_machdep.c.
Approved by: mentor(rwatson), re(bz)
option to vm_object_page_remove() asserts that the specified range of pages
is not mapped, or more precisely that none of these pages have any managed
mappings. Thus, vm_object_page_remove() need not call pmap_remove_all() on
the pages.
This change not only saves time by eliminating pointless calls to
pmap_remove_all(), but it also eliminates an inconsistency in the use of
pmap_remove_all() versus related functions, like pmap_remove_write(). It
eliminates harmless but pointless calls to pmap_remove_all() that were being
performed on PG_UNMANAGED pages.
Update all of the existing assertions on pmap_remove_all() to reflect this
change.
Reviewed by: kib
em drivers.
- Make the per-instance 'enable_aim' sysctl truly per-instance by having it
change a per-instance variable (which is used to control AIM) rather
than having all of the per-instance sysctls operate on a single global
variable.
Reviewed by: jfv (earlier version)
MFC after: 1 week
the AP doesn't transmit beacons.
If the AP requests a CSA (ie, a channel switch) and then enters CAC
(channel availability check) for 60 seconds, it doesn't send beacons
and it just listens for radar events (and other things which we don't
do yet.)
Now, ath_newstate() was not resetting the beacon timer config on
a transition to the RUN state when in STA mode - it was setting
sc_syncbeacon, which simply updates the beacon config from the
contents of the next received beacon.
This means the STA never generates beacon miss events.
If the AP goes into CAC for 60 seconds and recovers, the STA will
happily receive the first beacon and reconfigure timers.
But if it gets a radar event after that, it'll change channel
again, not notify the station that it's changed channel..
and since the station is happily waiting for the first beacon
to configure the beacon timer details from, it won't ever
generate a beacon miss interrupt and it'll sit there forever
(or until the AP appears on that channel once again.)
This change forces the last known beacon timer config to be
written to hardware on a transition from CSA->RUN in STA mode.
This forces bmiss events to occur and the STA will eventually
(after a handful of beacon miss events) begin scanning for
another access point.
to do with global namespaces) and CAPABILITIES (which has to do with
constraining file descriptors). Just in case, and because it's a better
name anyway, let's move CAPABILITIES out of the way.
Also, change opt_capabilities.h to opt_capsicum.h; for now, this will
only hold CAPABILITY_MODE, but it will probably also hold the new
CAPABILITIES (implying constrained file descriptors) in the future.
Approved by: rwatson
Sponsored by: Google UK Ltd
possible to organize subroutines with rules.
The "call" action saves the current rule number in the internal
stack and rules processing continues from the first rule with
specified number (similar to skipto action). If later a rule with
"return" action is encountered, the processing returns to the first
rule with number of "call" rule saved in the stack plus one or higher.
Submitted by: Vadim Goncharov
Discussed by: ipfw@, luigi@
This is really a new name for SNDCTL_DSP_RESET.
And this what commit r222723 should really have been in the first place.
PR: kern/156874
Submitted by: gerald
MFC after: 1 week
The commit intended to add SNDCTL_DSP_HALT, but actually added
SNDCTL_SEQ_HALT, which is not defined in the OSS specs.
Reported by: Pan Tsu <inyaoo@gmail.com>
Pointyhat to: gerald, avg
This fixes the problem, when the secondary GPT header is not erased when
partition table destroyed. Move equal operations from g_part_gpt_create
and g_part_gpt_recover to the separate function g_gpt_set_defaults.
Reported by: dwhite
MFC after: 1 week
mode attribute in as 0 when doing writes. The change adds
the Mode attribute plus the others except Owner and Owner_group
to the list requested by the NFSv4 Write Operation. This fixed
a problem where an executable file built by "cc" would get mode
0111 instead of 0755 for some NFSv4 servers.
Found at the recent NFSv4 interoperability Bakeathon.
Tested by: tdh at excfb.com
MFC after: 2 weeks
get it out of a stuck condition that can be caused by GEM_MAC_RX_OVERFLOW.
- In gem_reset_rxdma() call gem_setladrf() in order to reprogram the RX
filter and restore the previous content of GEM_MAC_RX_CONFIG. While at it
consistently use the newly introduced sc_mac_rxcfg throughout the driver
instead of reading the its old content.
- Increment if_iqdrops instead of if_ierrors in case of RX buffer allocation
failure.
- According to the GEM datasheet the RX MAC should also be disabled in
gem_setladrf() before changing its configuration.
- Add error messages to gem_disable_{r,t}x() and take advantage of these
throughout the driver instead of duplicating their functionality all over
the place.
In joint forces with: yongari
(i.e. under COMPAT_FREEBSD32) in case ifconf() returned success to match
the native SIOCGIFCONF behavior.
PR: kern/158369
Reported by: Paul Procacci <pprocacci att gmail com>
MFC after: 1 week
For snapshots, this is the same as COMPRESSRATIO, but for
filesystems/volumes, the COMPRESSRATIO is based on the data "USED" (ie,
includes blocks in children, but not blocks shared with the origin).
This is needed to figure out how much space a filesystem would use if it
were not compressed (ignoring snapshots).
Illumos-gate revision: 13387
Obtained from: Illumos (Feature #1092)
MFC after: 2 weeks
The vdev cache is very underutilized (hit ratio 30%-70%) and may consume
excessive memory on systems with many vdevs.
Illumos-gate revision: 13346
Obtained from: Illumos (Bug #175)
MFC after: 1 week
the microcode caused SCB timeouts. Linux driver does not allow
microcode loading for these controllers and jfv also confirmed that
there is no need to do and it shouldn't.
PR: kern/103332
Additional confirmation from: jfv
MFC after: 1 week
floppies, so it will not be used as the start of an emulated floppy
image on a bootable CD which is what the fake BPB was used for.
- Only check that EDD packet mode is available once at the start of
zfsldr rather than for each disk sector now that we read data in one
sector at a time. As a result, collapse the remaining bits of read
up into nread and rename nread to read.
- Restore a return at the end of putstr that I removed in the previous
revision.
Tested by: Henri Hennebert (earlier version)
MFC after: 1 week
Remove message about non empty bootcode, we can not break something
while GEOM_PART_EBR_COMPAT is defined.
But without GEOM_PART_EBR_COMPAT any changes in EBR are allowed and we
can accidentally wipe the boot code. To do not break anything save
the first EBR chunk and keep it untouched each time when we are
changing EBR. Note that we are still not support boot code for EBR.
PR: kern/141235
MFC after: 1 month
disk drive. The boot0cfg(8) utility preserves these 4 bytes when is
writing bootcode to keep a multiboot ability.
Change gpart's bootcode method to keep DSN if it is not zero. Also
do not allow writing bootcode with size not equal to MBRSIZE.
PR: kern/157819
Tested by: Eir Nym
MFC after: 1 month
machine checks (e.g. invalid PCI configuration cycles), but these can
be caught and recovered from. This change also the RTAS PCI driver to
work without modification as a replacement for the Grackle driver on
Grackle-based Powermacs.
The DFS code was tickling the channel set directly whilst going
through the state RUN -> CSA -> RUN. This only changed the channel;
it didn't go via ath_reset(). However in this driver, a channel
change always causes a chip reset, which resets the beacon timer
configuration and interrupt setup. This meant that data would go
out but as the beacon timers never fired, beacons would never
be queued.
The confusing part is that sometimes the state transition was
RUN -> SCAN -> CAC -> RUN (with CSA being in there sometimes);
going via SCAN would clear sc_beacons and thus the transition
to RUN would reprogram beacon transmission.
In case someone tries debugging why suspending a device currently
beaconing (versus just RX'ing beacons which is what occurs in STA
mode), add a silly comment which should hopefully land them at
this commit message. The call to ath_hal_reset() will be clearing
the beacon config and it may not be always reset.
can be tested.
This doesn't at all actually do radar detection! It's just
so developers who wish to test the net80211 DFS code can easily
do so. Without this flag, the DFS channels are never marked
DFS and thus the DFS stuff doesn't run.
latter.
It appears that the addition to uath(4) came in through PR kern/135009,
which had tested another device, the SMCWUSBTG2, successfully with uath(4)
and included the SMCWUSBG as it "has the same chipset". I can find no
other evidence that these two do actually share the same chipset. Moreover,
Linux treats the SMCWUSBG as a zyd(4) device also.
This reverts r223537.
Discussed with: hselasky, kevlo
MFC after: 1 week
In cdregister(), hold the periph lock semaphore during changer
probe/configuration. This removes a window where an open of the
cd device may succeed before probe processing has completed.
In camisr_runqueue(), we need to run the sims queue regardless of
whether or not the current peripheral has more work to do. This
reverts a change mistakenly made in revision 223081.
Reported by: ache
smell that caused me to turn this up was due to a failed fan burning, not
a CPU (plus a healthy dose of paranoia).
Submitted by: Paul Mather <paul at gromit dot dlib dot vt dot edu>
LED controller used to run the load graph on the server's front panel.
Reported by: Paul Mather <paul at gromit dot dlib dot vt dot edu>
MFC after: 3 days
a magnitude smaller than itc_freq. A minimum period of 10*hz is
sufficient precision. As a side-effect, the number of clocks per
second, when the machine is idle, dropped by more than 50%.
Be anal and define the maximum period to be at least 4G seconds.
With a 64-bit counter and an ITC frequency that's expected to be
always less than 4Ghz, it takes longer than that to wrap around.
