d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
131041fa2a
freebsd-nq/sys
History
Ian Lepore 969fc29e0b Use the monotonic (uptime) counter rather than time-of-day to measure elapsed 
time between ntp_adjtime() clock offset adjustments.  This eliminates spurious
frequency steering after a large clock step (such as a 1970->2015 step on a
system with no battery-backed clock hardware).

This problem was discovered after the import of ntpd 4.2.8, which does things
in a slightly different (but still correct) order than the 4.2.4 we had
previously.  In particular, 4.2.4 would step the clock then immediately after
use ntp_adjtime() to set the frequency and offset to zero, which captured the
post-step time-of-day as a side effect.  In 4.2.8, ntpd sets frequency and
offset to zero before any initial clock step, capturing the time as 1970-ish,
then when it next calls ntp_adjtime() it's with a non-zero offset measurement.
This non-zero value gets multiplied by the apparent 45-year interval, which
blows up into a completely bogus frequency steer.  That gets clamped to
500ppm, but that's still enough to make the clock drift so fast that ntpd has
to keep stepping it every few minutes to compensate.
2015-07-12 18:38:17 +00:00
..
amd64 Now that aesni won't reuse fpu contexts (D3016), add seatbelts to the 2015-07-08 19:26:36 +00:00
arm Return the FDT node of the GPIO controller to gpiobus. It is used by the 2015-07-11 21:09:43 +00:00
arm64 Add ARM64TODO comments to ACPI PCI stubs 2015-07-12 18:32:16 +00:00
boot Add the Banana Pi DTS. 2015-07-07 19:01:54 +00:00
bsm
cam Create a dedicated function for ensuring that cdir and rdir are populated. 2015-07-11 16:22:48 +00:00
cddl Create a dedicated function for ensuring that cdir and rdir are populated. 2015-07-11 16:22:48 +00:00
compat Implement normal and abnormal process termination. 2015-07-11 19:41:31 +00:00
conf * Address review (and add a bit myself). 2015-07-12 18:14:38 +00:00
contrib Import the CloudABI datatypes and create a system call table. 2015-07-09 07:20:15 +00:00
crypto Complete the move that was started w/ r263218.. For some reason I 2015-07-11 03:12:34 +00:00
ddb Correct the function name in catch-all error handling case. 2015-06-17 10:20:59 +00:00
dev * Address review (and add a bit myself). 2015-07-12 18:14:38 +00:00
fs Check suspendability on the mountpoint returned by VOP_GETWRITEMOUNT. 2015-07-05 22:37:33 +00:00
gdb CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten 2015-05-22 17:05:21 +00:00
geom Spoil even can happen for some time now even on providers opened exclusively 2015-07-10 19:27:19 +00:00
gnu The GNU Amlogic DTS files have some errors (e.g. bad register 2015-04-11 08:17:39 +00:00
i386 Convert between abridged (from FXSAVE) and unabridged (from FSAVE) 2015-07-10 09:20:13 +00:00
isa
kern Use the monotonic (uptime) counter rather than time-of-day to measure elapsed 2015-07-12 18:38:17 +00:00
kgssapi
libkern Remove checks for __ARM_EABI__, we only build for EABI now. 2015-07-09 21:02:40 +00:00
mips Add the atomic_thread_fence() family of functions with intent to 2015-07-08 18:12:24 +00:00
modules Rename zfs nvpair files to not colidate with our nvlist. 2015-07-09 21:53:40 +00:00
net * Address review (and add a bit myself). 2015-07-12 18:14:38 +00:00
net80211 Break out the current 802.11 software scan methods into an indirect table. 2015-06-08 02:35:43 +00:00
netgraph * Address review (and add a bit myself). 2015-07-12 18:14:38 +00:00
netinet Correct issue presented in r285051, 2015-07-09 16:28:36 +00:00
netinet6 Keep IPv6 address specified by IPV6_PKTINFO socket option in kernel 2015-07-03 19:01:38 +00:00
netipsec Summary: Fix LINT build. The names of the new AES modes were not 2015-07-10 02:23:50 +00:00
netnatm
netpfil assorted algorithmic fixes from Paolo Valente (one of my qfq coauthors): 2015-07-10 19:24:36 +00:00
netsmb
nfs Avoid closing unallocated socket in case socreate fails. 2015-02-28 20:30:29 +00:00
nfsclient Remove some oldnfs remnants. 2015-04-18 16:08:06 +00:00
nfsserver
nlm
ofed Fix broken implementation of "kvasprintf()" function by adding missing 2015-07-03 11:16:20 +00:00
opencrypto Add support for AES modes to IPSec. These modes work both in software only 2015-07-09 18:16:35 +00:00
pc98 Fix up tabs vs. spaces 2015-07-04 20:31:06 +00:00
powerpc cpu_number and cpu_swapout are never used, and only defined in powerpc. 2015-07-11 17:33:50 +00:00
rpc Remove hard limits on number of accepting NFS connections. 2015-04-07 10:25:27 +00:00
security fd: make 'rights' a manadatory argument to fget* functions 2015-07-05 19:05:16 +00:00
sparc64 Add the atomic_thread_fence() family of functions with intent to 2015-07-08 18:12:24 +00:00
sys Create a dedicated function for ensuring that cdir and rdir are populated. 2015-07-11 16:22:48 +00:00
teken
tools
ufs Move chdir/chroot-related fdp manipulation to kern_descrip.c 2015-07-11 16:19:11 +00:00
vm Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
x86 Set the initial system time to a sane (as in: not end of 21st century) value when 2015-06-29 17:02:09 +00:00
xdr
xen Garbage collect comments which related to the pre-r284296 support for a 2015-06-21 06:05:33 +00:00
Makefile Kill EoL whitespace. 2015-05-29 14:03:07 +00:00