Andrew Turner 17fb49c1e4 An IPI must be cleared before it is handled otherwise next IPI could be ... missed. In other words, if a new request for an IPI is sent while the previous request is being handled but the IPI is not cleared yet, the clearing of the previous IPI request also clears the new one and the handling is missed. There are only three MP interrupt controllers in ARM now. Two of them are fixed by this change, the third one is correct, probably only just by accident. The fix is minimalistic as new interrupt framework is awaited. It was debugged on RPi2 where missing IPI handling together with SCHED_ULE led to situation in which tdq_ipipending was not cleared and so IPI_PREEMPT was stopped to be sent. Various odditys were found related to slow system response time like various events timed out, and slow console response. Submitted by: Svatopluk Kraus <onwahe@gmail.com> Reviewed by: loos, kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D3722		2015-10-01 12:09:05 +00:00
..
amd64	Exploit r288122 to address a cosmetic issue. Since PV chunk pages don't	2015-09-26 07:18:05 +00:00
arm	An IPI must be cleared before it is handled otherwise next IPI could be	2015-10-01 12:09:05 +00:00
arm64	Use pmap_load more consistently. While here try to only load the data once	2015-10-01 10:43:40 +00:00
boot	Use EFI page size constants instead of hardcoding 4096.	2015-09-29 15:49:53 +00:00
bsm
cam	Use proper STAILQ_* macros where possible.	2015-09-30 20:38:35 +00:00
cddl	MFV r288408:	2015-09-30 05:24:22 +00:00
compat	save some bytes by using more concise SDT_PROBE<n> instead of SDT_PROBE	2015-09-28 12:14:16 +00:00
conf	Install kernel debug data under /usr/lib/debug	2015-09-24 16:55:22 +00:00
contrib	Add an initial driver for the AR9170 series draft-11n hardware from	2015-09-26 07:08:35 +00:00
crypto	const'ify an arg that we don't update...	2015-07-29 23:37:15 +00:00
ddb	Make kstack_pages a tunable on arm, x86, and powepc. On i386, the	2015-08-10 17:18:21 +00:00
dev	Disable suspend when we're shutting down. This solves the "tell FreeBSD	2015-10-01 10:52:26 +00:00
fs	Ensure that when a blockable open of fifo returns success, a valid	2015-09-20 21:18:33 +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	geom_dev: Use kenv 'dumpdev' in the same way as rc/etc.d/dumpon	2015-09-23 21:08:52 +00:00
gnu	Fixing a memory leak on module unloading.	2015-09-11 22:43:35 +00:00
i386	Exploit r288122 to address a cosmetic issue. Since PV chunk pages don't	2015-09-26 07:18:05 +00:00
isa
kern	Disable suspend when we're shutting down. This solves the "tell FreeBSD	2015-10-01 10:52:26 +00:00
kgssapi
libkern	Add the __aeabi_memclr8 symbol, clang 3.7 uses this.	2015-09-21 18:35:32 +00:00
mips	Exploit r288122 to address a cosmetic issue. Since PV chunk pages don't	2015-09-26 07:18:05 +00:00
modules	Fix make depend in sys/modules/otus	2015-10-01 05:56:38 +00:00
net	Eliminate nd6_nud_hint() and its TCP bindings.	2015-09-27 05:29:34 +00:00
net80211	Defer calling into the driver to update the QOS (WME) configuration.	2015-09-29 03:40:21 +00:00
netgraph	Add support for PPP-Max-Payload PPPoE tag (RFC4638).	2015-09-11 09:15:27 +00:00
netinet	Take extra reference to security policy before calling crypto_dispatch().	2015-09-30 08:16:33 +00:00
netinet6	Take extra reference to security policy before calling crypto_dispatch().	2015-09-30 08:16:33 +00:00
netipsec	Take extra reference to security policy before calling crypto_dispatch().	2015-09-30 08:16:33 +00:00
netnatm
netpfil	Simplify the way of attaching IPv6 link-layer header.	2015-09-16 14:26:28 +00:00
netsmb
nfs	Wait up to 10 seconds for late-initializing network interfaces to arrive.	2015-09-26 13:55:55 +00:00
nfsclient	Remove some oldnfs remnants.	2015-04-18 16:08:06 +00:00
nfsserver
nlm
ofed	Fix build broken by r287861.	2015-09-16 15:40:08 +00:00
opencrypto	Make IPsec work with AES-GCM and AES-ICM (aka CTR) in OCF... IPsec	2015-08-04 17:47:11 +00:00
pc98	Add missing ofw_machdep.h. Make x86 ofw_machdep.h work pc98 too.	2015-08-28 15:41:09 +00:00
powerpc	Use tabs for indend.	2015-09-20 01:35:51 +00:00
rpc	Increase group limit for kerberized NFSv4	2015-09-26 16:30:16 +00:00
security	fd: make 'rights' a manadatory argument to fget* functions	2015-07-05 19:05:16 +00:00
sparc64	Add support for weak symbols to the kernel linkers. It means that	2015-09-20 01:27:59 +00:00
sys	Disable suspend when we're shutting down. This solves the "tell FreeBSD	2015-10-01 10:52:26 +00:00
teken	Sync HPA and VPA implementations with CUP.	2015-08-24 07:49:27 +00:00
tools	save some bytes by using more concise SDT_PROBE<n> instead of SDT_PROBE	2015-09-28 12:14:16 +00:00
ufs	Do not consume extra reference. This is a bug in r287479.	2015-09-05 12:28:18 +00:00
vm	As a step towards the elimination of PG_CACHED pages, rework the handling	2015-09-30 23:06:29 +00:00
x86	dmar_ctx_dtr() does not exist since r284869. Remove the static function	2015-09-22 16:50:59 +00:00
xdr
xen	xen: allow disabling PV disks and nics	2015-08-21 15:53:08 +00:00
Makefile	Kill EoL whitespace.	2015-05-29 14:03:07 +00:00