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freebsd kernel with SKQ
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Rick Macklem 22cefe3d83 nfsd: fix replies from session cache for multiple retries 
Recent testing of network partitioning a FreeBSD NFSv4.1
server from a Linux NFSv4.1 client identified problems
with both the FreeBSD server and Linux client.

Commit 05a39c2c1c fixed replying with the cached reply in
in the session slot if same session slot sequence#.
However, the code uses the reply and, as such,
will fail for a subsequent retry of the RPC.
A subsequent retry would be an extremely rare event,
but this patch fixes this, so long as m_copym(..M_NOWAIT)
does not fail, which should also be a rare event.

This fix affects the exceedingly rare case where a NFSv4
client retries a non-idempotent RPC, such as a lock
operation, multiple times.  Note that retries only occur
after the client has needed to create a new TCP connection,
with a new TCP connection for each retry.

MFC after:	2 weeks
2021-04-10 15:50:25 -07:00
.github/workflows GitHub actions: unbreak macOS build 2021-01-08 15:36:38 +01:00
bin ed(1): Add two references in the SEE ALSO section 2021-04-09 09:43:49 +02:00
cddl dtrace: Document the libdir, nolibs and syslibdir options 2021-04-02 17:42:38 -04:00
contrib libpfctl: Switch to pfctl_rule 2021-04-10 11:16:02 +02:00
crypto OpenSSL: Merge OpenSSL 1.1.1k 2021-03-25 11:45:19 -04:00
etc base: remove if_wg(4) and associated utilities, manpage 2021-03-17 09:14:48 -05:00
gnu dialog: fix macro redefinition 2021-03-01 16:01:44 +01:00
include Only symlink cryptodev.h into /usr/include/crypto/ 2021-03-19 16:59:44 -07:00
kerberos5 kerberos5: fix the WITH_OPENLDAP build 2021-01-30 00:07:50 -06:00
lib rtld: make dlerror() thread-local 2021-04-10 17:33:34 +03:00
libexec rtld: make dlerror() thread-local 2021-04-10 17:33:34 +03:00
release release: move installworld before installkernel 2021-04-05 13:16:01 -04:00
rescue ping: add a ping6 hard link for backwards compatibility 2020-11-26 18:33:04 +00:00
sbin libpfctl: Fix u_* counters 2021-04-10 11:16:03 +02:00
secure OpenSSL: Regen manual pages for 1.1.1k 2021-03-25 12:17:52 -04:00
share pfctl: Move ioctl abstraction functions into libpfctl 2021-04-10 11:16:02 +02:00
stand Loader: support booting OS from memory disk (MD) 2021-04-07 13:40:57 -05:00
sys nfsd: fix replies from session cache for multiple retries 2021-04-10 15:50:25 -07:00
targets Remove kgmon(8) 2021-04-04 00:50:28 +03:00
tests shared shadow vm object invalidation regression test 2021-04-07 12:39:05 -07:00
tools Drop 'Set to' from most src.conf(5) knobs 2021-04-09 22:23:03 -04:00
usr.bin m4(1): Add a SEE ALSO section and reference an AT&T manual 2021-04-08 21:16:54 +02:00
usr.sbin libpfctl: Switch to pfctl_rule 2021-04-10 11:16:02 +02:00
.arcconfig Adjust .arcconfig to land onto 'main' by default 2021-04-10 13:51:16 +02:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml Cirrus-CI: Add more information to help track down disk full issues 2021-03-03 11:51:08 -05:00
.clang-format clang-format: Avoid breaking after the opening paren of function definitions 2020-10-28 11:54:00 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore gitignore: expand list of ignored files 2021-01-14 17:03:57 +01:00
COPYRIGHT copyrights: Happy New Year 2021 2020-12-31 10:29:44 -05:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Add a pointer to csprng@ for the CSPRNG driver. This is enforced anyway by 2020-09-01 08:02:12 +00:00
Makefile Fix 'make bmake' top-level bootstrapping. 2021-03-06 09:45:08 -08:00
Makefile.inc1 Makefile.inc1: unbreak bootstrap when kbdcontrol does not exist 2021-03-23 20:47:14 -04:00
Makefile.libcompat libcompat: remove redundant path for ncurses 2021-01-07 15:14:52 +01:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Remove tcp_hostcache.h. Everything is private. 2021-04-08 10:58:44 -07:00
README.md Whitespace cleanup 2021-03-12 19:57:58 +08:00
RELNOTES Bump CURRENT to 14.0 2021-01-21 19:10:07 -05:00
UPDATING UPDATING: dereference portupgrade(8) 2021-04-08 20:26:41 -04:00

README.md

FreeBSD Source:

This is the top level of the FreeBSD source directory.

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

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), config(8), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.

Source Roadmap:

Directory Description
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 and gnu/COPYING.LIB 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.
sys/arch/conf Kernel configuration files. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries.
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 FreeBSD Handbook.