dragonfly.git
2 years agokernel -- vn: Implement BUF_CMD_FLUSH for vn(ode) devices.
Venkatesh Srinivas [Tue, 8 May 2012 12:33:56 +0000 (05:33 -0700)]
kernel -- vn: Implement BUF_CMD_FLUSH for vn(ode) devices.

File-backed vnode devices implement BUF_CMD_FLUSH by VOP_FSYNC-ing
the backing vnode.

2 years agoAdd a small wdog(9) manual page.
Sascha Wildner [Tue, 8 May 2012 07:11:22 +0000 (09:11 +0200)]
Add a small wdog(9) manual page.

2 years agotcp/sack: Guard against ACK reordering when adding SACK blocks
Sepherosa Ziehau [Tue, 8 May 2012 05:56:07 +0000 (13:56 +0800)]
tcp/sack: Guard against ACK reordering when adding SACK blocks

The reordered ACK could carry SACK blocks which are all covered by
tcpcb.snd_una

2 years agortld: Fix gethints()
John Marino [Mon, 7 May 2012 15:56:36 +0000 (17:56 +0200)]
rtld: Fix gethints()

The function that retrieves the hints file contents had a logic flaw.
It's supposed to return either the full or filtered version of the
hints file depending if the object has the nodefaultlib flag set or
not.  The problem was that every subsequent call would return the
first call's result regardless of the nodefaultlib flag setting.

The function's API was changed to simplify the code.  The function is
never called without a valid object, so there was no need to test for
that in order the check the nodefaultlib flag.  Now the flag is passed
to gethints() directly.

Reported and submitted by: Konstantin Belousov

2 years agokernel -- ffs: Correct incorrect prototype change that snuck into last commit.
Venkatesh Srinivas [Mon, 7 May 2012 20:28:00 +0000 (13:28 -0700)]
kernel -- ffs: Correct incorrect prototype change that snuck into last commit.

2 years agoMerge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
Venkatesh Srinivas [Mon, 7 May 2012 20:25:13 +0000 (13:25 -0700)]
Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly

2 years agokernel - Attempt to fix illegal xfer buffer in ulpt*
Matthew Dillon [Mon, 7 May 2012 18:41:27 +0000 (11:41 -0700)]
kernel - Attempt to fix illegal xfer buffer in ulpt*

Use usbd_alloc_buffer() to allocate the dummy input buffer for reading
status from the printer instead of passing a (possibly badly misaligned or
illegally addressed) buffer embedded in the softc.

This appears to fix numerous issues with ulpt on 64-bit systems.

2 years agokernel -- ffs: Softdep lock and assorted fixes
Venkatesh Srinivas [Mon, 7 May 2012 15:28:48 +0000 (08:28 -0700)]
kernel -- ffs: Softdep lock and assorted fixes

* Remove interlocked_sleep; we can just use lksleep directly

* sema_get no longer eats the interlock passed in; all of its
  callers were retaking the lock eventually or immediately.

* softdep was setting up a callout to wake itself in request_cleanup.
  Switch to directly using timeout in lksleep for this purpose.

* Do not access inodedep structure outside of softdep lock in
  softdep_update_inodeblock for buffer field.

* Remove prio field from semaphores; they were unused and the DFly
  tsleep routines do not respect priority anyway.

* Do not release softdep lock before panic()ing

2 years agodevelopment.7: Fix the git documentation URL.
Sascha Wildner [Mon, 7 May 2012 13:02:20 +0000 (15:02 +0200)]
development.7: Fix the git documentation URL.

Reported-by: Joachim de Groot <jdegroot@web.de>
2 years agopw: Sync with FreeBSD
Peter Avalos [Sun, 6 May 2012 19:11:50 +0000 (12:11 -0700)]
pw:  Sync with FreeBSD

* Spelling fixes.
* Stop hard-coding default directory mode as 0777.
* Use arc4random_uniform() to avoid "modulo bias".
* Before updating the password database, the pw(8) utility first
  performs a sanity check by invoking "pwd_mkdb -C".  However, if this
  failed it silently returned success.  Fix this so it fails the update
  operation instead.
* Increase the size of the salt in pw(8) from 8 to 32.
* Make it possible to have a '/' in the salt.
* Add the groupmod '-d' option to pw to allow the deletion of existing
  users from a group without the need to perform the same operation by
  replacing the existing list via the '-M' option.  The '-M' option
  requires someone to fetch the existing members with pw, deleting the
  undesired members from the list and sending the altered list back.
* Do the right thing with symlinks in the skeleton directory.
* Accept passwords which contain whitespace.
* Introduce the new option -M to allow to set the permissions of the
  user's newly created home directory.
* Use strlcpy(3).
* Shift file locking to source file instead of temp file.
* Add a `-H <fd>' option that is like `-h <fd>', but accepts an already
  encrypted password on the specified file descriptor.

DragonFly-bug: <http://bugs.dragonflybsd.org/issue2362>
Obtained-from:  FreeBSD

2 years agortld.1: Some mdoc improvement.
Sascha Wildner [Sun, 6 May 2012 19:23:31 +0000 (21:23 +0200)]
rtld.1: Some mdoc improvement.

2 years agoarcmsr(4): Sync with FreeBSD.
Sascha Wildner [Sun, 6 May 2012 17:18:28 +0000 (19:18 +0200)]
arcmsr(4): Sync with FreeBSD.

Updates to 1.20.00.22

Some bugfixing (mainly, better timeout handling) and cleanups.

2 years agortld(1): Add shared object search order to the man page
John Marino [Sun, 6 May 2012 12:25:20 +0000 (14:25 +0200)]
rtld(1): Add shared object search order to the man page

The shared library search order on the dynamic linker was updated a few
weeks ago, but the man page was not updated to reflect its new behavior.
DragonFly's search order is the same as Linux, but differs from FreeBSD
and other BSDs due to the recently added support for DT_RUNPATH and
-z nodefaultlib.

To clarify, FreeBSD and DragonFly *recognized* the DT_RUNPATH dynamic
tag but considered it an alias of DT_RPATH and thus wasn't handling the
tag as intended.

DragonFly is likely is the only BSD that searches shared objects like
Linux, but FreeBSD developers have patches from DragonFly in case they
want to follow suit.

2 years agoamdsbwd.4 & ichwd.4: Clean up SEE ALSO.
Sascha Wildner [Sun, 6 May 2012 10:22:24 +0000 (12:22 +0200)]
amdsbwd.4 & ichwd.4: Clean up SEE ALSO.

Also, bump the date to when it was brought in.

2 years agoisa.4: List amdsbwd(4) and ichwd(4).
Sascha Wildner [Sun, 6 May 2012 09:50:26 +0000 (11:50 +0200)]
isa.4: List amdsbwd(4) and ichwd(4).

2 years agoAdd a missing '-width' in various manpages' lists.
Sascha Wildner [Sun, 6 May 2012 09:32:52 +0000 (11:32 +0200)]
Add a missing '-width' in various manpages' lists.

2 years agoImport amdsbwd(4) from FreeBSD
Francois Tigeot [Thu, 3 May 2012 22:06:47 +0000 (00:06 +0200)]
Import amdsbwd(4) from FreeBSD

This is a device driver for the watchdog timer included in SB600
and more recent AMD south bridges.

2 years agortld: Utilize malloc capability of recently updated realpath
John Marino [Sat, 5 May 2012 16:10:56 +0000 (18:10 +0200)]
rtld: Utilize malloc capability of recently updated realpath

Now that DragonFly's realpath works like the FreeBSD version, rtld can
use the FreeBSD code without modification which is a little more
efficient.

2 years agorealpath(3): Upgrade to POSIX IEEE Std 1003.1-2008
John Marino [Sat, 5 May 2012 16:07:58 +0000 (18:07 +0200)]
realpath(3): Upgrade to POSIX IEEE Std 1003.1-2008

Recent updates to realpath implements some of the missing POSIX
functionality, but the requirement to allocate memory for the pointer
returned by the function when a null pointer is passed to the
resolved_path argument was missing.

The prototype changes in the following ways:
1.  The restrict type qualifier is added to both arguments
2.  The second argument changes from "char resolved[PATH_MAX]" to
    "char * resolved"

The new prototype is backwards-compatible with the old one.

This should bring realpath up to Open Group Specifications Issue 7
IEEE Std 1003.1-2008
http://pubs.opengroup.org/onlinepubs/9699919799/functions/realpath.html

Taken from:
FreeBSD SVN 206893 (20 APR 2010)
FreeBSD SVN 206898 (20 APR 2010)
FreeBSD SVN 217144 (08 JAN 2011)
FreeBSD SVN 227090 (04 NOV 2011)

2 years agokernel/crypto: Remove some unnecessary casts to the own type.
Sascha Wildner [Sat, 5 May 2012 08:25:39 +0000 (10:25 +0200)]
kernel/crypto: Remove some unnecessary casts to the own type.

2 years agokernel: Remove some unused variables.
Sascha Wildner [Sat, 5 May 2012 08:01:30 +0000 (10:01 +0200)]
kernel: Remove some unused variables.

2 years agomps(4): Use a variable.
Sascha Wildner [Sat, 5 May 2012 07:47:28 +0000 (09:47 +0200)]
mps(4): Use a variable.

2 years agortld: Add two special directives to libmap.conf
John Marino [Fri, 4 May 2012 16:54:27 +0000 (18:54 +0200)]
rtld: Add two special directives to libmap.conf

include <file>:
    Parse the contents of file before continuing with the current file.

includedir <dir>:
    Parse the contents of every file in dir that ends in .conf before
    continuing with the current file.

Any file or directory encountered while processing include or includedir
directives will be parsed exactly once, even if it is encountered multiple
times.

Taken from FreeBSD SVN 234851 (30 APR 2012) with modification:

1) DragonFly realpath works differently than FreeBSD's and doesn't
   accept a null value for the resolved_path argument.
2) FreeBSD's debug lines reflect the wrong function, lm_init, instead
   of lmc_parse_file.  lmc_parse_dir also calls lmc_parse_file, so
   the debug message is definitely wrong and was corrected.
3) FreeBSD keeps using path even after determining realpath and putting
   the result in the rpath variable.  It uses path for debug messages
   and opening a file descriptor.  DragonFly doesn't use path again and
   only uses rpath after it is determined.
4) FreeBSD's lmc_parse_file code had a bug in the linked list used to
   track which conf files had already been parsed.  Memory for the
   filename was allocated so it wouldn't get overwritten after multiple
   passes, which is standard for the includedir functionality.

2 years agortld: Sync with FreeBSD after gnu_hash import
John Marino [Fri, 4 May 2012 16:41:58 +0000 (18:41 +0200)]
rtld: Sync with FreeBSD after gnu_hash import

For the most part, FreeBSD took our gnu_hash implementation without much
modification.  Most of these changes are caused by whitespace differences
due to a different style scheme, and by declarating variables separately
from their assignments.  Notable exceptions were:
* FreeBSD didn't use int_fast32_t type
* FreeBSD keeps checking the first character before doing strcmp
* FreeBSD renamed the symlook_obj2 to symlook_obj1_*

The only additions were two debug statements.  This commits syncs the
following back to DragonFly:

FreeBSD SVN 234840 (30 APR 2012)
FreeBSD SVN 234841 (30 APR 2012)

2 years agomake upgrade: Now that we have devfs, don't try to remove any /dev/*
Sascha Wildner [Fri, 4 May 2012 19:15:54 +0000 (21:15 +0200)]
make upgrade: Now that we have devfs, don't try to remove any /dev/*

2 years agotcp: Per-connection DupThresh
Sepherosa Ziehau [Fri, 4 May 2012 09:48:24 +0000 (17:48 +0800)]
tcp: Per-connection DupThresh

This eases implementing adaptive DupThresh algorithm, e.g. RFC4653

2 years agotcp: Disable aggressive rescue retransmission for SACK by default
Sepherosa Ziehau [Fri, 4 May 2012 04:58:22 +0000 (12:58 +0800)]
tcp: Disable aggressive rescue retransmission for SACK by default

It could cause medium spurious retransmit when segments are reordered
but not lost.

2 years agotcp: Dragging RescueRxt along with HighRxt should depend on tcp.rescuesack_agg
Sepherosa Ziehau [Fri, 4 May 2012 04:16:21 +0000 (12:16 +0800)]
tcp: Dragging RescueRxt along with HighRxt should depend on tcp.rescuesack_agg

2 years agotcp: Move useless DSACK detection before increasing dupacks
Sepherosa Ziehau [Fri, 4 May 2012 04:07:14 +0000 (12:07 +0800)]
tcp: Move useless DSACK detection before increasing dupacks

- Avoid the spurious retransmit in the following dump:
  http://leaf.dragonflybsd.org/~sephe/fast1.xpl (~9.755sec)
- Loosely meet the requirement of RFC3042: no new segments should be
  sent upon ACKs carrying useless SACK information
- Add sysctl net.inet.tcp.ignore_redun_dsack to disable useless
  DSACK detection; default on

2 years agokernel: Remove the unused HW_WDOG option.
Sascha Wildner [Thu, 3 May 2012 21:02:27 +0000 (23:02 +0200)]
kernel: Remove the unused HW_WDOG option.

2 years agokernel/wdog: Compile in kern_wdog.c by default.
Sascha Wildner [Thu, 3 May 2012 20:58:16 +0000 (22:58 +0200)]
kernel/wdog: Compile in kern_wdog.c by default.

Actually it was always compiled in by default but the code depended
on the WATCHDOG_ENABLED option which is not in the GENERIC kernels.

Simply remove the WATCHDOG_ENABLE option. The code is small, it does
nothing by default than initializing a lock, a /dev/wdog and a
callout, and it also makes it easier for people who want to use
ichwd(4) by simply kldloading it.

2 years agoImport ichwd(4) from FreeBSD
Francois Tigeot [Thu, 3 May 2012 07:22:27 +0000 (09:22 +0200)]
Import ichwd(4) from FreeBSD

This is a device driver for the watchdog timer function present on the
LPC interface bridge in Intel ICH-series chipsets.

2 years agokernel/ecc: Remove unneeded MFILES line in the Makefile.
Sascha Wildner [Thu, 3 May 2012 11:16:18 +0000 (13:16 +0200)]
kernel/ecc: Remove unneeded MFILES line in the Makefile.

Reported-by: ftigeot
2 years agoKernel: do not manipulate watchdog list if empty
François Tigeot [Thu, 3 May 2012 10:43:52 +0000 (12:43 +0200)]
Kernel: do not manipulate watchdog list if empty

Suggested-by: Alex Hornung
2 years agotcp: Ignore duplicate ACK carries useless DSACK
Sepherosa Ziehau [Thu, 3 May 2012 08:37:17 +0000 (16:37 +0800)]
tcp: Ignore duplicate ACK carries useless DSACK

This mainly used to avoid unnecessary early retransmit and fast
retransmit as show in the following two dumps:
http://leaf.dragonflybsd.org/~sephe/early.xpl (~4.8sec)
http://leaf.dragonflybsd.org/~sephe/fast.xpl (~12.35sec)

2 years agoUpdate to per-CPU hardware resources format.
Francois Tigeot [Wed, 2 May 2012 17:57:03 +0000 (19:57 +0200)]
Update to per-CPU hardware resources format.

2 years agotcp_var.h: White space cleanup
Sepherosa Ziehau [Wed, 2 May 2012 03:27:22 +0000 (11:27 +0800)]
tcp_var.h: White space cleanup

2 years agovmstat - Remove the busy_time == 0 hack
Matthew Dillon [Wed, 2 May 2012 03:06:44 +0000 (20:06 -0700)]
vmstat - Remove the busy_time == 0 hack

Remove a very old busy_time == 0 hack which assumed that a delta busy time
of 0 with transactions present simply meant that a transaction didn't
complete within one second and that the device was 100% busy.

In fact, disk devices are so fast these days (particularly SSDs) that it is
possible for many transactions to complete without causing the busy counter
to tick-over.  The device is more likely to be less than 1% busy.

This fixes the '% busy' display for e.g. 'systat -vm 1' to properly report
0% in these situations.

2 years agokernel: Remove some bogus casts of NULL to something.
Sascha Wildner [Tue, 1 May 2012 17:48:16 +0000 (19:48 +0200)]
kernel: Remove some bogus casts of NULL to something.

2 years agohptmv(4): Remove an unneeded NULL check after M_WAITOK.
Sascha Wildner [Tue, 1 May 2012 14:04:40 +0000 (16:04 +0200)]
hptmv(4): Remove an unneeded NULL check after M_WAITOK.

2 years agokernel/plip: A little indent fix.
Sascha Wildner [Tue, 1 May 2012 13:12:05 +0000 (15:12 +0200)]
kernel/plip: A little indent fix.

2 years agokernel: Adjust some indentation.
Sascha Wildner [Tue, 1 May 2012 12:21:57 +0000 (14:21 +0200)]
kernel: Adjust some indentation.

2 years agokernel: Remove some unused variables.
Sascha Wildner [Tue, 1 May 2012 09:48:27 +0000 (11:48 +0200)]
kernel: Remove some unused variables.

2 years agoHAMMER VFS - Only set B_CLUSTEROK on 64K buffers
Matthew Dillon [Mon, 30 Apr 2012 22:48:32 +0000 (15:48 -0700)]
HAMMER VFS - Only set B_CLUSTEROK on 64K buffers

* Only set B_CLUSETEROK on 64K buffers.  This should fix a fairly rare
  panic related to buffer size mismatches due to the bufdaemon crossing
  the 16K/64K buffer size boundary when clustering buffers.

2 years agokernel - Fix degenerate cluster_write() cases
Matthew Dillon [Mon, 30 Apr 2012 22:44:53 +0000 (15:44 -0700)]
kernel - Fix degenerate cluster_write() cases

* cluster_write() should bdwrite() as a fallback, not bawrite().

  Note that cluster_awrite() always bawrite()'s or equivalent.  The
  DragonFly API split the functions out, so cluster_write() can now
  almost always bdwrite() for the non-clustered case.

* Solves some serious performance and real-time disk space usage issues
  when HAMMER1 was updated to use the cluster calls.  The disk space
  would be recovered by the daily cleanup but the extra writes could
  end up being quite excessive, 25:1 unnecessary writes vs necessary
  writes.

Reported-by: multiple, testing by tuxillo
2 years agoRevert "kernel/vga: Remove some unneeded #ifdef/#define's."
Sascha Wildner [Mon, 30 Apr 2012 22:11:13 +0000 (00:11 +0200)]
Revert "kernel/vga: Remove some unneeded #ifdef/#define's."

This reverts commit 617e8b12b140696ebd906ac4c3e01ea56643c624.

Sorry, it wasn't unneeded at all.

2 years agokernel/vga: Remove some unneeded #ifdef/#define's.
Sascha Wildner [Mon, 30 Apr 2012 22:02:13 +0000 (00:02 +0200)]
kernel/vga: Remove some unneeded #ifdef/#define's.

2 years agokernel: Remove some unused variables.
Sascha Wildner [Mon, 30 Apr 2012 20:24:01 +0000 (22:24 +0200)]
kernel: Remove some unused variables.

2 years agokernel: Remove some unused variables.
Sascha Wildner [Mon, 30 Apr 2012 18:02:58 +0000 (20:02 +0200)]
kernel: Remove some unused variables.

2 years agotcp: Implement part of Eifel Response Algorithm (RFC4015)
Sepherosa Ziehau [Sat, 28 Apr 2012 02:36:17 +0000 (10:36 +0800)]
tcp: Implement part of Eifel Response Algorithm (RFC4015)

It adapts the retransmission timer to avoid further spurious timeouts.

2 years agovquota.8: Remove extra .El
Sascha Wildner [Sun, 29 Apr 2012 18:21:44 +0000 (20:21 +0200)]
vquota.8: Remove extra .El

2 years agokernel: Use LIST_FOREACH in some places.
Sascha Wildner [Sun, 29 Apr 2012 12:12:00 +0000 (14:12 +0200)]
kernel: Use LIST_FOREACH in some places.

2 years agovquotactl.2: Add back a reference to loader.conf(5).
Sascha Wildner [Sat, 28 Apr 2012 20:42:08 +0000 (22:42 +0200)]
vquotactl.2: Add back a reference to loader.conf(5).

Add some words about the tunable, too.

Also adjust vquota(8)'s manpage in a similar manner.

2 years agovquotactl.2: Fix some small mdoc issues.
Sascha Wildner [Sat, 28 Apr 2012 19:57:52 +0000 (21:57 +0200)]
vquotactl.2: Fix some small mdoc issues.

2 years agoDocument the vquotactl() syscall
Francois Tigeot [Sat, 28 Apr 2012 19:25:40 +0000 (21:25 +0200)]
Document the vquotactl() syscall

2 years agonrelease: Build the git we ship on the LiveCD without Python support.
Sascha Wildner [Sat, 28 Apr 2012 18:23:23 +0000 (20:23 +0200)]
nrelease: Build the git we ship on the LiveCD without Python support.

This saves quite some space (>60MB) on the ISO.

2 years agomake upgrade: Don't remove /var/heimdal.
Sascha Wildner [Sat, 28 Apr 2012 11:41:10 +0000 (13:41 +0200)]
make upgrade: Don't remove /var/heimdal.

pkgsrc's heimdal package will create it, too.

2 years agokernel: Remove newlines from the panic messages that have one.
Sascha Wildner [Sat, 21 Apr 2012 09:03:04 +0000 (11:03 +0200)]
kernel: Remove newlines from the panic messages that have one.

panic() itself will add a newline.

2 years agoAdd tap(4) to LINT/LINT64.
Sascha Wildner [Sat, 28 Apr 2012 07:29:07 +0000 (09:29 +0200)]
Add tap(4) to LINT/LINT64.

2 years agotap(4): Use the number of instances from the kernel config file.
Sascha Wildner [Sat, 28 Apr 2012 07:28:35 +0000 (09:28 +0200)]
tap(4): Use the number of instances from the kernel config file.

2 years agomsgport: Implement dropmsg for spin port
Sepherosa Ziehau [Sat, 28 Apr 2012 01:45:54 +0000 (09:45 +0800)]
msgport: Implement dropmsg for spin port

DragonFly-bug: http://bugs.dragonflybsd.org/issues/2354

2 years agoRemove some CLEANFILES in kernel module Makefiles.
Sascha Wildner [Fri, 27 Apr 2012 22:26:16 +0000 (00:26 +0200)]
Remove some CLEANFILES in kernel module Makefiles.

2 years agoUpdate files for OpenSSL-1.0.1b import.
Peter Avalos [Fri, 27 Apr 2012 19:42:09 +0000 (12:42 -0700)]
Update files for OpenSSL-1.0.1b import.

2 years agoMerge branch 'vendor/OPENSSL'
Peter Avalos [Fri, 27 Apr 2012 19:39:35 +0000 (12:39 -0700)]
Merge branch 'vendor/OPENSSL'

2 years agoImport OpenSSL-1.0.1b.
Peter Avalos [Fri, 27 Apr 2012 19:35:59 +0000 (12:35 -0700)]
Import OpenSSL-1.0.1b.

      o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
      o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0

2 years agotcp: Update snd_last upon spurious timeout retransmission restore
Sepherosa Ziehau [Fri, 27 Apr 2012 08:15:55 +0000 (16:15 +0800)]
tcp: Update snd_last upon spurious timeout retransmission restore

According to RFC4015; mainly to avoid delay spike.

2 years agotcp: Fix window scaling for accecpted socket
Sepherosa Ziehau [Fri, 27 Apr 2012 06:49:07 +0000 (14:49 +0800)]
tcp: Fix window scaling for accecpted socket

- Retire tcpcb.requested_s_scale, use tcpcb.snd_scale directly.
- Set tcpcb.snd_wnd in SYN_SENT state only if the TCP flags contains SYN.
- Save other side advertised window into syncache, and setup tcpcb.snd_wnd
  according to the save value after the 3-way hand shake is done.
- Delay tiwin setup in tcp_input(), specificly after tcpcb.snd_scale is
  setup on the SO_ACCEPTCONN path.

This tends to fix the window scaling bug: when the sender accepts
connection and data only follow from sender to receiver.

2 years agotcp: Balance aggressiveness of SACK rescue retransmission
Sepherosa Ziehau [Thu, 26 Apr 2012 08:09:51 +0000 (16:09 +0800)]
tcp: Balance aggressiveness of SACK rescue retransmission

This commit is following the idea of sustain ACK clocking whenever
possible to avoid timeout transmission during fast recovery, which
is mentioned in both in RFC3517 and "Rescue Retransmission for SACK"
draft.

- Be a little bit more aggressive in NextSeg()

  The main problem of "Rescue Retransmission for SACK" draft is its
  conservativeness of how many rescue retransmission could happen
  during fast recovery, which under some situation is not enough to
  sustain ACK clock.

  Our aggressive SACK rescue retransmission variant tries to tick out
  one rescue segment if there are no other segments could be sent according
  to the RFC3517, thus ACK clock is kept ticking.

- Be consertive in sending out rescue segment.

  The idea of SACK rescue retransmission is just to sustain ACK clock.
  As long as there are segments sent (either new segments or retransmission)
  during SACK base fast recovery, the ACK clock will be sustained.  So
  rescue segment will not be sent in this situation.

SACK rescue retransmission statistics are updated more accurately to
reflect what had happened.

The aggressive variant of SACK rescue retransmission could be disabled
by setting sysctl net.inet.tcp.rescuesack_agg to 0; it is enabled by
default.

2 years agontp_{adj,get}time.2: Mention our dntpd(8) and mark ntpd as being in pkgsrc.
Sascha Wildner [Wed, 25 Apr 2012 07:27:44 +0000 (09:27 +0200)]
ntp_{adj,get}time.2: Mention our dntpd(8) and mark ntpd as being in pkgsrc.

Reported-by: Loganaden Velvindron
2 years agotcp: Implement "Rescue Retransmission for SACK-based Loss Recovery Algorithm"
Sepherosa Ziehau [Thu, 19 Apr 2012 09:30:59 +0000 (17:30 +0800)]
tcp: Implement "Rescue Retransmission for SACK-based Loss Recovery Algorithm"

http://tools.ietf.org/html/draft-nishida-tcpm-rescue-retransmission-00

When hsu@ implemented RFC3517, part of the fix mentioned in the above draft
had been implemented, i.e. no SACK scoreboard left case, as mentioned in the
above draft as example.  However, the original implementation still did not
cover the case when there are small amount of SACK scoreboards left (< 3),
and the original implmentation could be more aggressive than the method
suggested in the above draft.

- Whether to use this new mechanism is controlled by net.inet.tcp.rescuesack
  sysctl node; it is on by default.  Disable it will fallback to the original
  rescue retransmission behaviour implemented by hsu@.
- Save rexmt_high, before we start retransmission using RFC3517, so if nothing
  is sent, rexmt_high could be restored.
- Add statistics about rescue retransmission.

We could futher examine whether do more than one rescue retransmission could
be helpful or not.

2 years agontp_adjtime.2: Use the correct function name.
Sascha Wildner [Wed, 25 Apr 2012 04:52:50 +0000 (06:52 +0200)]
ntp_adjtime.2: Use the correct function name.

Reported-by: y0n3t4n1
2 years agontp_adjtime.2: Use the correct function name.
Sascha Wildner [Tue, 24 Apr 2012 17:16:03 +0000 (19:16 +0200)]
ntp_adjtime.2: Use the correct function name.

Reported-by: Loganaden Velvindron
2 years ago<sys/lock.h>: A little whitespace adjustment.
Sascha Wildner [Tue, 24 Apr 2012 17:15:12 +0000 (19:15 +0200)]
<sys/lock.h>: A little whitespace adjustment.

2 years agokernel: Change wmesg type for lockinit, lockreinit
Markus Pfeiffer [Tue, 24 Apr 2012 13:18:41 +0000 (13:18 +0000)]
kernel: Change wmesg type for lockinit, lockreinit

* change type of parameter wmesg to const char * for lockinit and
  lockreinit.
* change type of member wmesg of struct lock to const char *
* adapt manpage lock(9)

2 years agotest/test/README: add a few lines
Markus Pfeiffer [Tue, 24 Apr 2012 11:34:37 +0000 (11:34 +0000)]
test/test/README: add a few lines

2 years agokernel/viapm: Makefile cleanup (remove unneeded .PATH and opt_isa.h).
Sascha Wildner [Sun, 22 Apr 2012 11:36:53 +0000 (13:36 +0200)]
kernel/viapm: Makefile cleanup (remove unneeded .PATH and opt_isa.h).

2 years agokernel/modules: Remove opt_pci.h (which doesn't exist) from some Makefiles.
Sascha Wildner [Sun, 22 Apr 2012 11:24:00 +0000 (13:24 +0200)]
kernel/modules: Remove opt_pci.h (which doesn't exist) from some Makefiles.

2 years agokernel -- ffs: Soft updates locking fixes
Venkatesh Srinivas [Sun, 22 Apr 2012 03:05:06 +0000 (20:05 -0700)]
kernel -- ffs: Soft updates locking fixes

1) Do not take mplock in bioops callbacks; the lock was no longer synchronizing
   against mainline code.

2) Do not hold softdep lock around bwillinode()

3) Take softdep lock in softdep_process_worklist bioops callback. This callback
   was previously using the mplock for synchronization (insufficiently!)

4) Modify process_worklist_item to expect the softdep lock to be held on
   entry and release it at appropriate times.

Prevents a panic seen when running fsstress on a UFS+softdep fs, where fsync
finds a null buffer on vnode trees. This arose from a front-end/back-end
race in softdep_process_worklist.

2 years agokernel: Fix some whitespace from the previous commit.
Sascha Wildner [Sat, 21 Apr 2012 20:59:58 +0000 (22:59 +0200)]
kernel: Fix some whitespace from the previous commit.

2 years agokill zombies if the parent set SIG_IGN on SIGCHLD
Matthias Rampke [Tue, 17 Apr 2012 21:33:16 +0000 (23:33 +0200)]
kill zombies if the parent set SIG_IGN on SIGCHLD

fix for http://bugs.dragonflybsd.org/issues/2349

2 years agortld: Add write-lock to case of filter loading
John Marino [Sat, 21 Apr 2012 18:52:45 +0000 (20:52 +0200)]
rtld: Add write-lock to case of filter loading

Propagate the current state of rtld_bind_lock to dlopen_object() calls
through the filter loading call chain. This fixes attempts to
write-lock the already locked rtld_bind_lock when filter loading is
initiated by relocation of dlopening dso.

Taken from: FreeBSD SVN 234170 (12 APR 2012)

Do not try to adjust stacks if dlopen_object is called too early.  This
is a follow-up to FreeBSD SVN 233231 which fixed a similar issue with
object initialization code.

Taken from: FreeBSD SVN 233777 (02 APR 2012)

2 years agokernel -- vm_pageout: Handle pages w/ NULL vm_objects on the act/in pageqs.
Venkatesh Srinivas [Sat, 21 Apr 2012 18:40:41 +0000 (11:40 -0700)]
kernel -- vm_pageout: Handle pages w/ NULL vm_objects on the act/in pageqs.

vm_page_unwire could end up putting pages w/ NULL object fields onto the
active or inactive page queues. Allow the active/inactive scans to deal with
these pages rather than panic-ing. This pages can be disposed of normally.

Closes-bug: 2338
Suggested-by: dillon
Reported-by: sephe, JustinS
2 years agopthread_join(3): If the target thread is detached, return EINVAL.
Sascha Wildner [Sat, 21 Apr 2012 10:17:07 +0000 (12:17 +0200)]
pthread_join(3): If the target thread is detached, return EINVAL.

We were returning ESRCH previously, which is wrong, as it indicates
that the thread could not be found. Fix this in both libthread_xu
and libc_r.

See http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_join.html

----->8-----
[ESRCH]
    No thread could be found corresponding to that specified by the
    given thread ID.

...

[EINVAL]
    The value specified by thread does not refer to a joinable thread.
-----8<-----

2 years agoUpdate files for OpenSSL-1.0.1a import.
Peter Avalos [Sat, 21 Apr 2012 03:55:08 +0000 (20:55 -0700)]
Update files for OpenSSL-1.0.1a import.

2 years agoMerge branch 'vendor/OPENSSL'
Peter Avalos [Sat, 21 Apr 2012 03:37:28 +0000 (20:37 -0700)]
Merge branch 'vendor/OPENSSL'

2 years agoImport OpenSSL-1.0.1a.
Peter Avalos [Sat, 21 Apr 2012 03:33:46 +0000 (20:33 -0700)]
Import OpenSSL-1.0.1a.

o Fix for ASN1 overflow bug CVE-2012-2110.
o Workarounds for some servers that hang on long client hellos.
o Fix SEGV in AES code.

2 years agokernel: Remove some leftover references to struct cfdriver.
Sascha Wildner [Fri, 20 Apr 2012 09:02:13 +0000 (11:02 +0200)]
kernel: Remove some leftover references to struct cfdriver.

2 years agodsched_bfq.4: Fix capitalization.
Sascha Wildner [Thu, 19 Apr 2012 21:55:52 +0000 (23:55 +0200)]
dsched_bfq.4: Fix capitalization.

2 years agodigi.4: Remove some wrong documentation.
Sascha Wildner [Thu, 19 Apr 2012 21:49:46 +0000 (23:49 +0200)]
digi.4: Remove some wrong documentation.

2 years agobsd-family-tree: Sync with FreeBSD.
Sascha Wildner [Thu, 19 Apr 2012 21:24:39 +0000 (23:24 +0200)]
bsd-family-tree: Sync with FreeBSD.

2 years agotcp: Reimplement TCP_FASTKEEP socket option using per-pcb keepidle
Sepherosa Ziehau [Thu, 19 Apr 2012 07:16:39 +0000 (15:16 +0800)]
tcp: Reimplement TCP_FASTKEEP socket option using per-pcb keepidle

Retired now used TF_FASTKEEP

2 years agotcp: Reset keepalive timer, if TCP_KEEPIDLE is changed
Sepherosa Ziehau [Thu, 19 Apr 2012 06:57:36 +0000 (14:57 +0800)]
tcp: Reset keepalive timer, if TCP_KEEPIDLE is changed

This would cause side effect, if the keepalive probing was underway.
Correcting this side effect could become overkill, so it is suggested
that TCP_KEEPIDLE is set before connect(2) or listen(2).

2 years agojme: Unbreak buildkernel w/ KASSERT
Sepherosa Ziehau [Thu, 19 Apr 2012 03:13:37 +0000 (11:13 +0800)]
jme: Unbreak buildkernel w/ KASSERT

2 years agojme: Move TX descriptor count into chain_data
Sepherosa Ziehau [Thu, 19 Apr 2012 03:08:33 +0000 (11:08 +0800)]
jme: Move TX descriptor count into chain_data

Improve CPU cache utilization

2 years agojme: Option file adjustment
Sepherosa Ziehau [Thu, 19 Apr 2012 03:02:06 +0000 (11:02 +0800)]
jme: Option file adjustment

- RSS is now globally enabled; opt_rss.h is no longer needed here
- Always enable JME_RSS_DEBUG if module is not built w/ buildkernel

2 years agojme: Move RX ring count and RX descriptor count into rxdata
Sepherosa Ziehau [Thu, 19 Apr 2012 03:00:05 +0000 (11:00 +0800)]
jme: Move RX ring count and RX descriptor count into rxdata

Improve CPU cache utilization

2 years agojme: Use RX data's interrupt mask to test interrupt status
Sepherosa Ziehau [Thu, 19 Apr 2012 02:39:41 +0000 (10:39 +0800)]
jme: Use RX data's interrupt mask to test interrupt status

Functionally same, semantically better

2 years agojme: Pass rxdata to RX functions
Sepherosa Ziehau [Thu, 19 Apr 2012 02:34:09 +0000 (10:34 +0800)]
jme: Pass rxdata to RX functions

2 years agoRename vfs_accounting_enabled to vfs_quota_enabled
François Tigeot [Tue, 17 Apr 2012 20:27:36 +0000 (22:27 +0200)]
Rename vfs_accounting_enabled to vfs_quota_enabled

2 years agoef(4): Bring in some small fixes from FreeBSD.
Sascha Wildner [Wed, 18 Apr 2012 20:49:04 +0000 (22:49 +0200)]
ef(4): Bring in some small fixes from FreeBSD.

Gets rid of a superfluous extra opt_ef.h file in /usr/obj hierarchy.