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935fd1194a
freebsd-skq/sys
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mm 935fd1194a MFV v242732: 
Merge the ZFS I/O deadman thread from vendor (illumos).
This feature panics the system on hanging ZFS I/O, helps debugging
and resumes failed service.

The panic behavior can be controlled with the loader-only tunables:
vfs.zfs.deadman_enabled (enable or disable panic on stalled ZFS I/O)
vfs.zfs.deadman_synctime (expiration time for stalled ZFS I/O)

By default, ZFS I/O deadman is enabled by default on amd64 and i386
excluding virtual guest machines.

Illumos ZFS issues:
  3246 ZFS I/O deadman thread

References:
  https://www.illumos.org/issues/3246

MFC after:	2 weeks
2013-02-25 12:33:31 +00:00
..
amd64 Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
arm Fix off-by-one error in sanity checks 2013-02-25 09:33:48 +00:00
boot Fix the bug I introduced in r247045. 2013-02-25 01:50:04 +00:00
bsm Style. 2013-02-11 23:14:54 +00:00
cam Hide SEMB port of the SiI3826 Port Multiplier by default to avoid extra 2013-02-22 19:53:12 +00:00
cddl MFV v242732: 2013-02-25 12:33:31 +00:00
compat Reduce duplication between i386/linux/linux.h and amd64/linux32/linux.h 2013-01-29 18:41:30 +00:00
conf Improve mxge's receive performance for IPv6: 2013-02-21 21:28:33 +00:00
contrib Merge ACPICA 20130214. 2013-02-15 20:36:28 +00:00
crypto When porting XTS-related code from OpenBSD I forgot to update copyright (only 2013-02-20 22:59:53 +00:00
ddb Small textdump enhancements. 2012-11-01 04:07:08 +00:00
dev Turn off fast posting for the ISP2100- I'd forgotten that it actually 2013-02-25 11:22:54 +00:00
fs Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
gdb
geom Add barrier write capability to the VFS buffer interface. A barrier 2013-02-16 14:51:30 +00:00
gnu/fs r16312 is not any longer real since many years (likely since when VFS 2012-11-19 22:43:45 +00:00
i386 Locking for todr got pushed down into inittodr and the client 2013-02-21 07:16:40 +00:00
ia64 kernacc() expects all KVAs to be covered in the kernel map. With the 2013-02-25 02:41:38 +00:00
isa
kern Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
kgssapi Piete.Brooks at cl.cam.ac.uk reported via email a crash which was 2012-12-18 00:25:48 +00:00
libkern Add __aeabi_ulcmp to allow building of the LINT kernel. 2013-01-23 09:18:18 +00:00
mips Reform the busdma API so that new types may be added without modifying 2013-02-12 16:57:20 +00:00
modules Improve mxge's receive performance for IPv6: 2013-02-21 21:28:33 +00:00
net Finish the r244185. This fixes ever growing counter of pfsync bad 2013-02-15 09:03:56 +00:00
net80211 Disable this variable; the code using it is also disabled. 2013-02-18 01:37:55 +00:00
netatalk Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netgraph Fix compilation warning. 2013-02-15 07:58:51 +00:00
netinet Fix tcp_lro_rx_ipv4() for drivers that do not set CSUM_IP_CHECKED. 2013-02-21 17:00:35 +00:00
netinet6 Generate lle_event in the IPv6 neighbor discovery code too. 2013-01-26 00:05:22 +00:00
netipsec Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netipx Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netnatm Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netncp Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netpfil Finish the r244185. This fixes ever growing counter of pfsync bad 2013-02-15 09:03:56 +00:00
netsmb Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
nfs Remove the unused nfs_curusec(). 2013-01-17 19:03:24 +00:00
nfsclient Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
nfsserver Use vfs_timestamp() to set file timestamps rather than invoking 2013-01-18 18:43:38 +00:00
nlm
ofed Fix LINT build on amd64. 2013-02-09 04:13:45 +00:00
opencrypto When porting XTS-related code from OpenBSD I forgot to update copyright (only 2013-02-20 22:59:53 +00:00
pc98 Remove support for plip from the GENERIC kernel as no systems in the 2013-02-01 20:17:11 +00:00
pci Fix build. 2013-02-21 12:52:18 +00:00
powerpc Eliminate an unused #define. 2013-02-22 16:59:52 +00:00
rpc Add support for backchannels to the kernel RPC. Backchannels 2012-12-08 00:29:16 +00:00
security Remove redundant check. 2013-02-17 11:57:47 +00:00
sparc64 Reform the busdma API so that new types may be added without modifying 2013-02-12 16:57:20 +00:00
sys Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
teken
tools Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
ufs The UFS2 filesystem allocates new blocks of inodes as they are needed. 2013-02-16 15:11:40 +00:00
vm On arm, like sparc64, the end of the kernel map varies from one type of 2013-02-18 01:02:48 +00:00
x86 Use critical_enter/critical_exit around the time sensitive part of 2013-02-21 15:35:48 +00:00
xdr
xen
Makefile Run cscope with the -v parameter to make it more user-friendly. 2012-12-02 20:51:24 +00:00