freebsd with flexible iflib nic queues
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Andriy Gapon 113ce413ba MFV r329313: 8857 zio_remove_child() panic due to already destroyed parent zio
illumos/illumos-gate@d6e1c446d7
d6e1c446d7

https://www.illumos.org/issues/8857
  I had an OS panic on one of our servers:

  ffffff01809128c0 vpanic()
  ffffff01809128e0 mutex_panic+0x58(fffffffffb94c904, ffffff597dde7f80)
  ffffff0180912950 mutex_vector_enter+0x347(ffffff597dde7f80)
  ffffff01809129b0 zio_remove_child+0x50(ffffff597dde7c58, ffffff32bd901ac0,
  ffffff3373370908)
  ffffff0180912a40 zio_done+0x390(ffffff32bd901ac0)
  ffffff0180912a70 zio_execute+0x78(ffffff32bd901ac0)
  ffffff0180912b30 taskq_thread+0x2d0(ffffff33bae44140)
  ffffff0180912b40 thread_start+8()

  It panicked here:
  http://src.illumos.org/source/xref/illumos-gate/usr/src/uts/common/fs/zfs/
  zio.c#430

  pio->io_lock is DEAD, thus a panic. Further analysis shows the "pio"
  (parent zio of "cio") has already been destroyed.

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Andriy Gapon <avg@FreeBSD.org>
Reviewed by: Youzhong Yang <youzhong@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: George Wilson <george.wilson@delphix.com>

PR:		223803
Tested by:	shiva.bhanujan@quorum.com
MFC after:	2 weeks
2018-02-15 14:46:29 +00:00
bin Allow overriding VTABSIZE at compile-time. 2018-02-13 16:48:57 +00:00
cddl zfsd: Allow zfsd to work on any type of GEOM provider 2018-02-14 23:52:39 +00:00
contrib nanosleep(2): Fix bogus incrementing of rmtp by tc_tick_sbt on [EINTR]. 2018-02-14 18:43:50 +00:00
crypto Add declaration of SSL_get_selected_srtp_profile() for OpenSSL. 2018-01-25 23:38:05 +00:00
etc etc: clean up trailing whitespace in autofs 2018-02-15 11:41:38 +00:00
gnu Remove libreadline from the source tree, all consumers but gdb 2018-02-06 12:22:42 +00:00
include We don't support gcc < 4.2.1, so varargs.h now is just #error 2018-02-12 14:48:14 +00:00
kerberos5 various: general adoption of SPDX licensing ID tags. 2017-11-27 15:37:16 +00:00
lib zfsd: Allow zfsd to work on any type of GEOM provider 2018-02-14 23:52:39 +00:00
libexec Sprinkle static; avoid nested externs. 2018-02-04 19:05:13 +00:00
release Change installer default to not install ports tree 2018-01-30 16:34:56 +00:00
rescue Avoid referencing private lib names directly. 2017-11-10 07:53:02 +00:00
sbin devd: don't pass &fds in useless parameters to select(2) 2018-02-15 03:22:53 +00:00
secure Remove c_rehash(1) to not confuse users. We do not install the Perl script. 2018-02-08 19:55:03 +00:00
share share: update pci_vendors to 2018.02.15 2018-02-15 11:13:21 +00:00
stand stand/lua: Exit sub-menus on backspace 2018-02-14 20:18:23 +00:00
sys MFV r329313: 8857 zio_remove_child() panic due to already destroyed parent zio 2018-02-15 14:46:29 +00:00
targets Remove libreadline from the source tree, all consumers but gdb 2018-02-06 12:22:42 +00:00
tests gpart: append partition name to the underlying provider's physical path 2018-02-14 20:26:09 +00:00
tools Simple script to image a small test area from a built tree. Build with 2018-02-14 18:21:54 +00:00
usr.bin Make lock(1) use PAM. This makes the -p option work again. (Well, kind of, 2018-02-11 13:35:31 +00:00
usr.sbin Move devmatch to sbin from usr/sbin. 2018-02-12 14:44:21 +00:00
.arcconfig
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.gitattributes .git*: add gitattributes and gitignore 2017-12-25 21:07:54 +00:00
.gitignore .git*: add gitattributes and gitignore 2017-12-25 21:07:54 +00:00
COPYRIGHT Happy New Year 2018 my friends! 2017-12-31 16:48:04 +00:00
LOCKS
MAINTAINERS list myself in the MAINTAINERS file for Xen bits 2018-02-13 16:25:43 +00:00
Makefile Add a note about why we have the conditional before including 2018-02-07 16:28:26 +00:00
Makefile.inc1 sort needs to be in ITOOLS since find -s was changed to find | sort. 2018-02-09 18:47:00 +00:00
Makefile.libcompat X_COMPILER_* may not be defined. 2018-01-24 18:08:37 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Move devmatch to sbin from usr/sbin. 2018-02-12 14:44:21 +00:00
README Document the sys/boot -> stand move in hier.7 and the top-level README. 2017-12-03 20:36:36 +00:00
README.md Document the sys/boot -> stand move in hier.7 and the top-level README. 2017-12-03 20:36:36 +00:00
UPDATING Add Lua as a scripting langauge to /boot/loader 2018-02-12 15:31:53 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information).

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7) and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables.

The buildkernel and installkernel targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process. See build(7), config(8), and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information.

Note: If you want to build and install the kernel with the buildkernel and installkernel targets, you might need to build world before. More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf sub-directory. GENERIC is the default configuration used in release builds. NOTES contains entries and documentation for all possible devices, not just those commonly used.

Source Roadmap:

bin				System/user commands.

cddl			Various commands and libraries under the Common Development  
				and Distribution License.

contrib			Packages contributed by 3rd parties.

crypto			Cryptography stuff (see crypto/README).

etc				Template files for /etc.

gnu				Various commands and libraries under the GNU Public License.  
				Please see gnu/COPYING* for more information.

include			System include files.

kerberos5		Kerberos5 (Heimdal) package.

lib				System libraries.

libexec			System daemons.

release			Release building Makefile & associated tools.

rescue			Build system for statically linked /rescue utilities.

sbin			System commands.

secure			Cryptographic libraries and commands.

share			Shared resources.

stand			Boot loader sources.

sys				Kernel sources.

tests			Regression tests which can be run by Kyua.  See tests/README
				for additional information.

tools			Utilities for regression testing and miscellaneous tasks.

usr.bin			User commands.

usr.sbin		System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html