Attilio Rao 248bb9379f Fix a deadlock in the shutdown code: ... When performing a smp_rendezvous() or more likely, on amd64 and i386, a smp_tlb_shootdown() the caller will end up with the smp_ipi_mtx spinlock held, busy-waiting for other CPUs to acknowledge the operation. As long as CPUs are suspended (via cpu_reset()) between the active mask read and IPI sending there can be a deadlock where the caller will wait forever for a dead CPU to acknowledge the operation. Please note that on CPU0 that is going to be someway heavier because of the spinlocks being disabled earlier than quitting the machine. Fix this bug by calling cpu_reset() with the smp_ipi_mtx held. Note that it is very likely that a saner offline/online CPUs mechanism will help heavilly in fixing similar cases as it is likely more bugs of this type may arise in the future. Reported by: rwatson Discussed with: jhb Tested by: rnoland, Giovanni Trematerra <giovanni dot trematerra at gmail dot com> MFC: 2 weeks Special deciation to: anyone who made possible to have 16-ways machines in Netperf		2010-04-19 23:27:54 +00:00
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amd64	Add driver for Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet.	2010-04-14 20:45:33 +00:00
arm	Add BUS_SPACE_UNRESTRICTED and define it to be ~0, just like all the	2010-04-08 19:34:55 +00:00
boot	Add driver for Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet.	2010-04-14 20:45:33 +00:00
bsm
cam	scsi_cd: CD_FLAG_VALID_MEDIA is sufficient to set d_sectorsize and	2010-04-15 08:29:14 +00:00
cddl	Partially MFp4 #176265 by pjd@:	2010-04-19 09:03:36 +00:00
compat	Linux puts a blank line between each CPU.	2010-04-14 13:44:22 +00:00
conf	Remove unused file.	2010-04-19 07:51:57 +00:00
contrib	We don't need the definition for in_cksum repeated here since we get	2010-04-14 20:50:07 +00:00
crypto
ddb	Move two copies of the same definition to a common include file.	2010-04-14 23:06:07 +00:00
dev	With r206844, CSUM_TCP is also set for CSUM_TSO case. Modify	2010-04-19 22:10:40 +00:00
fs	Avoid extraneous recovery cycles in the experimental NFS client	2010-04-18 22:21:23 +00:00
gdb
geom	Fix ddb(4) "show geom addr" command when INVARIANTS is enabled. Don't	2010-04-19 20:07:35 +00:00
gnu	Bring in the ext2fs work done by Aditya Sarawgi during and after Google Summer	2010-01-14 14:30:54 +00:00
i386	Add driver for Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet.	2010-04-14 20:45:33 +00:00
ia64	Populate the sysctl tree with any MCA records we collected.	2010-04-13 22:20:12 +00:00
isa	Introduce the new kernel sub-tree x86 which should contain all the code	2010-02-25 14:13:39 +00:00
kern	Fix a deadlock in the shutdown code:	2010-04-19 23:27:54 +00:00
kgssapi
libkern	Switch to our preferred 2-clause BSD license.	2010-04-07 16:50:38 +00:00
mips	Fix MALTA64 build.	2010-04-19 09:03:34 +00:00
modules	Add driver for Silicon Integrated Systems SiS190/191 Fast/Gigabit Ethernet.	2010-04-14 20:45:33 +00:00
net	Move two copies of the same definition to a common include file.	2010-04-14 23:06:07 +00:00
net80211	Make this code a little more portable by wrapping the mtx calls into	2010-04-14 18:29:40 +00:00
netatalk
netgraph	Start copyright notice with /*-	2010-04-07 16:29:10 +00:00
netinet	whitespace fixes (trailing whitespace, bad indentation	2010-04-19 16:17:30 +00:00
netinet6	Plug reference leaks in the link-layer code ("new-arp") that previously	2010-04-11 16:04:08 +00:00
netipsec	Locks SPTREE when setting some SP entries to state DEAD.	2010-04-15 12:40:33 +00:00
netipx
netnatm
netncp	Switch to our preferred 2-clause BSD license.	2010-04-07 16:50:38 +00:00
netsmb	Switch to our preferred 2-clause BSD license.	2010-04-07 16:50:38 +00:00
nfs	Factor out the code shared between NFS client and server into its own	2010-02-16 20:00:21 +00:00
nfsclient	Simplify code a bit.	2010-02-18 22:10:55 +00:00
nfsserver	Patch the regular NFS server so that it returns ESTALE to the client	2010-03-26 01:19:29 +00:00
nlm
opencrypto	Add comments trying to explain what bad things happen here, i.e.	2010-01-09 15:43:47 +00:00
pc98	Default the machdep.lapic_allclocks to be enabled in order to cope with	2010-04-09 14:22:09 +00:00
pci	Consistently use capital letters.	2010-04-09 23:00:24 +00:00
powerpc	With r205496 in place we should ensure that nargs and nreturns are always	2010-04-02 21:48:27 +00:00
rpc	When the regular NFS server replied to a UDP client out of the replay	2010-03-23 23:03:30 +00:00
security	Update device-labeling logic for Biba, LOMAC, and MLS to recognize new-style	2010-03-02 15:05:48 +00:00
sparc64	Update for UltraSPARC-IV{,+} and SPARC64 V, VI, VII and VIIIfx CPUs.	2010-04-11 15:35:17 +00:00
sun4v	Change the arguments of exec_setregs() so that it receives a pointer	2010-03-25 14:24:00 +00:00
sys	Switch to our preferred 2-clause BSD license.	2010-04-07 16:50:38 +00:00
teken	Just use <stdint.h> instead of <inttypes.h>. We don't need it here.	2010-04-03 17:22:28 +00:00
tools
ufs	ffs_mount: remove redundant assignment of geom consumer to devvp.v_bufobj	2010-04-03 08:25:04 +00:00
vm	vm_thread_swapout() can safely dirty the page before rather than after	2010-04-19 00:18:14 +00:00
x86	Default the machdep.lapic_allclocks to be enabled in order to cope with	2010-04-09 14:22:09 +00:00
xdr
xen	don't hold spin lock across free	2010-02-21 01:12:18 +00:00
Makefile