last CPU to to finish the rendezvous action may become visible to
different CPUs at different times. As a result, the CPU that initiated
the rendezvous may exit the rendezvous and drop the lock allowing another
rendezvous to be initiated on the same CPU or a different CPU. In that
case the exit sentinel may be cleared before all CPUs have noticed causing
those CPUs to hang forever.
Workaround this by using a generation count to notice when this race
occurs and to exit the rendezvous in that case.
The problem was independently diagnosted by mlaier@ and avg@ as well.
Submitted by: neel
Reviewed by: avg, mlaier
Obtained from: NetApp
MFC after: 1 week
the multicast key search support for AR5212, AR5416 and later.
The general HAL routine ath_hal_getcapability() implement checking this
but it's overridden by a check in ar5212_misc:ar5212GetCapability().
This restores the later functionality in case it's found to be broken
in any of the 11n chipsets.
is no relevant difference for sbufs, and it increases portability of
the source code.
Split the actual initialization of the sbuf into a separate local
function, so that certain static code checkers can understand
what sbuf_new() does, thus eliminating on silly annoyance of
MISRA compliance testing.
Contributed by: An anonymous company in the last business I
expected sbufs to invade.
I checked with http://www.iso.org/iso/country_codes/iso_3166_code_lists.htm
and "MF" was officially spelled in English as "Saint Martin" there, but now
that "SX" exists (for "Sint Maarten (Dutch part)") (nice official "English"
spelling!) they seem to have added a "(French part)" suffix to "MF". Since
this is also in line with Newsletter VI-1 (2007-09-21), catch up.
choice of default size in the first place)
Reverse the order of arguments to the internal static sbuf_put_byte()
function to match everything else in this file.
Move sbuf_putc_func() inside the kernel version of sbuf_vprintf
where it belongs.
sbuf_putc() incorrectly used sbuf_putc_func() which supress NUL
characters, it should use sbuf_put_byte().
Make sbuf_finish() return -1 on error.
Minor stylistic nits fixed.
Now in the case when one-shot timers are used cyclic events should fire
closer to theier scheduled times. As the cyclic is currently used only
to drive DTrace profile provider, this is the area where the change
makes a difference.
Reviewed by: mav (earlier version, a while ago)
X-MFC after: clocksource/eventtimer subsystem
partition tables and lost an ability to boot after r221788.
Also unhide an error message from bootverbose, this would help to
easier determine the problem.
with geometry. And they do recalculation of user specified parameters.
MBR, PC98, VTOC8, EBR schemes are doing that. For these schemes an
auto alignment feature (ie. gpart add -a alignment) would not work.
But it can work for GPT and BSD schemes. BSD scheme usualy is created
inside MBR, so we can use knowledge about offset of MBR partition to
calculate aligned values for BSD partitions.
Use "offset" attribute of the parent provider for better alignment.
MFC after: 2 weeks
