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136766 Commits

Author SHA1 Message Date
Tom Rhodes
c6eaff9892 Catch up with revision 1.18 of dcons_os.c and add an example of how to use
dcons(4) as a valid gdb port.

PR:             118490
Submitted by:   Alexandre Kovalenko <alex.kovalenko@verizon.net>
2008-01-26 06:50:14 +00:00
Konstantin Belousov
58145c6aa2 In rev. 1.156, the convertion of the minor number to the unit number
resulted in the argument to the make_dev() to be a unit number.

Correct this by supplying a minor number to make_dev(), and using
the unit number for the calculation of the slave tty name.

Reported and tested by:	Peter Holm
Reviewed by:	jhb
Yet another pointy hat to:	kib
MFC after:	1 day
2008-01-26 06:09:23 +00:00
Julian Elischer
a4fcb5ec11 One of my powerbooks has this chip in it..
Confirmed by looking at netbsd.. they have also added this.
checked by grehen
MFC After: 3 days
2008-01-26 05:11:09 +00:00
Ed Maste
5cc204ee18 Allow arbitrary baud rates, not just the standard ones. 2008-01-26 04:30:48 +00:00
Kip Macy
c2791efe44 add opt_global.h dependency 2008-01-26 01:00:56 +00:00
Bruce Evans
fc84b771b4 Fix a harmless type error in 1.9. 2008-01-25 21:09:21 +00:00
John Baldwin
02d23fdd74 Fix a bug where a thread that hit the race where the sleep timeout fires
while the thread does not hold the thread lock would stop blocking for
subsequent interruptible sleeps and would always immediately fail the
sleep with EWOULDBLOCK instead (even sleeps that didn't have a timeout).

Some background:
- KSE has a facility for allowing one thread to interrupt another thread.
  During this process, the target thread aborts any interruptible sleeps
  much as if the target thread had a pending signal.  Once the target
  thread acknowledges the interrupt, normal sleep handling resumes.  KSE
  manages this via the TDF_INTERRUPTED flag.  Specifically, it sets the
  flag when it sends an interrupt to another thread and clears it when
  the interrupt is acknowledged.  (Note that this is purely a software
  interrupt sort of thing and has no relation to hardware interrupts
  or kernel interrupt threads.)
- The old code for handling the sleep timeout race handled the race
  by setting the TDF_INTERRUPT flag and faking a KSE-style thread
  interrupt to the thread in the process of going to sleep.  It probably
  should have just checked the TDF_TIMEOUT flag in sleepq_catch_signals()
  instead.
- The bug was that the sleepq code would set TDF_INTERRUPT but it was
  never cleared.  The sleepq code couldn't safely clear it in case there
  actually was a real KSE thread interrupt pending for the target thread
  (in fact, the sleepq timeout actually stomped on said pending interrupt).
  Thus, any future interruptible sleeps (*sleep(.. PCATCH ..) or
  cv_*wait_sig()) would see the TDF_INTERRUPT flag set and immediately
  fail with EWOULDBLOCK.  The flag could be cleared if the thread belonged
  to a KSE process and another thread posted an interrupt to the original
  thread.  However, in the more common case of a non-KSE process, the
  thread would pretty much stop sleeping.
- Fix the bug by just setting TDF_TIMEOUT in the sleepq timeout code and
  not messing with TDF_INTERRUPT and td_intrval.  With yesterday's fix to
  fix sleepq_switch() to check TDF_TIMEOUT, this is now sufficient.

MFC after:	3 days
2008-01-25 19:44:46 +00:00
John Baldwin
f455512fdd Update the timestamp regexps in syncstamp() and monostamp() for > 99999
traces where there isn't any leading whitespace before the record number
in the ktrdump output.
2008-01-25 19:24:12 +00:00
Mike Makonnen
581487018d Backout previous commit. It's going to clutter the console
during boot and shutdown. I think I'll hide it behind autoboot or
maybe take brooks@ suggestion and implement a different command
prefix for booting/shutdown purposes, but in any case it needs more
thought and attention.

Noticed by: ceri
Pointyhat to: mtm
2008-01-25 16:44:34 +00:00
Mike Makonnen
40ab104eaa Clarify in what formats the grouplist for the '-G' switch may be accepted.
Submitted by: Eygene Ryabinkin <rea-fbsd@codelabs.ru>
2008-01-25 15:54:14 +00:00
Mike Makonnen
0908cccf90 If the rc.conf(5) variable for a script is not enabled do not fail
silently. Display a message that the command wasn't run and make
possible suggestions for what to do.

PR:	   conf/118770
MFC after: 1 week
2008-01-25 15:06:26 +00:00
Robert Watson
bb5081a7eb Hide ipfw internal data structures behind IPFW_INTERNAL rather than
exposing them to all consumers of ip_fw.h.  These structures are
used in both ipfw(8) and ipfw(4), but not part of the user<->kernel
interface for other applications to use, rather, shared
implementation.

MFC after:	3 days
Reported by:	Paul Vixie <paul at vix dot com>
2008-01-25 14:38:27 +00:00
Mike Makonnen
c3ff913134 Rev. 1.6 made it impossible to use rc.d/kerberos with the krb5 port.
Re-implement the change so that the script once again works with
the krb5 port.

Submitted by: kensmith (slightly modified)
MFC after: 3 days
2008-01-25 05:23:01 +00:00
Ed Maste
27e05557a5 Calculate baud rate divisor instead of allowing only a fixed set of
standard rates.

Obtained from OpenBSD
  src/sys/dev/usb/uftdi.c 1.29
  src/sys/dev/usb/uftdireg.h 1.11

OpenBSD revisions noted by: ticso, on hackers
2008-01-25 02:41:44 +00:00
John Baldwin
515594a06f Fix a race in the sleepqueue timeout code that resulted in sleeps not
being properly cancelled by a timeout.  In general there is a race
between a the sleepq timeout handler firing while the thread is still
in the process of going to sleep.  In 6.x with sched_lock, the race was
largely protected by sched_lock.  The only place it was "exposed" and had
to be handled was while checking for any pending signals in
sleepq_catch_signals().

With the thread lock changes, the thread lock is dropped in between
sleepq_add() and sleepq_*wait*() opening up a new window for this race.
Thus, if the timeout fired while the sleeping thread was in between
sleepq_add() and sleepq_*wait*(), the thread would be marked as timed
out, but the thread would not be dequeued and sleepq_switch() would
still block the thread until it was awakened via some other means.  In
the case of pause(9) where there is no other wakeup, the thread would
never be awakened.

Fix this by teaching sleepq_switch() to check if the thread has had its
sleep canceled before blocking by checking the TDF_TIMEOUT flag and
aborting the sleep and dequeueing the thread if it is set.

MFC after:	3 days
Reported by:	dwhite, peter
2008-01-25 02:09:38 +00:00
Colin Percival
639c89833a Once the release goes out, RELENG_7_* will need approval from so@.
Approved by:	core (two months ago)
2008-01-24 22:07:03 +00:00
John Baldwin
4496b3577d Move the code for working with kld's out into its own file. 2008-01-24 19:11:13 +00:00
Jean-Sébastien Pédron
a8afa221cc When asked to use kqueue, AIO stores its internal state in the
`kn_sdata' member of the newly registered knote. The problem is that
this member is overwritten by a call to kevent(2) with the EV_ADD flag,
targetted at the same kevent/knote. For instance, a userland application
may set the pointer to NULL, leading to a panic.

A testcase was provided by the submitter.

PR:	kern/118911
Submitted by:	MOROHOSHI Akihiko <moro@remus.dti.ne.jp>
MFC after:	1 day
2008-01-24 17:10:19 +00:00
Konstantin Belousov
eee74fe05d Do not dereference NULL scp in the case the screen is not opened.
Instead, return ENXIO to the ioctl caller.

Reported and tested by:	Pawel Worach <pawel.worach gmail com>
Discussed with:	markus
MFC after:	3 days
2008-01-24 15:37:48 +00:00
Attilio Rao
623c393d65 Reflect lockcount() axing and lockmgr() prototype changing. 2008-01-24 14:17:52 +00:00
Ruslan Ermilov
5ac818f6f3 - sched_4bsd is no longer a default system scheduler on some
architectures, so call it "traditional" instead.

- sched_ule is no longer buggy or experimental (according to
  rev. 1.7 of sched_ule(4)), so don't call it experimental
  (reported by a user on stable@).

Reviewed by:	rwatson
2008-01-24 13:48:20 +00:00
Attilio Rao
9b42c272d5 Bump __FreeBSD_version in order to signal:
- lockmgr() prototype changing
- lockcount() axing
- LOCKMGR_ASSERT() axing
2008-01-24 12:37:54 +00:00
Attilio Rao
0e9eb108f0 Cleanup lockmgr interface and exported KPI:
- Remove the "thread" argument from the lockmgr() function as it is
  always curthread now
- Axe lockcount() function as it is no longer used
- Axe LOCKMGR_ASSERT() as it is bogus really and no currently used.
  Hopefully this will be soonly replaced by something suitable for it.
- Remove the prototype for dumplockinfo() as the function is no longer
  present

Addictionally:
- Introduce a KASSERT() in lockstatus() in order to let it accept only
  curthread or NULL as they should only be passed
- Do a little bit of style(9) cleanup on lockmgr.h

KPI results heavilly broken by this change, so manpages and
FreeBSD_version will be modified accordingly by further commits.

Tested by: matteo
2008-01-24 12:34:30 +00:00
Dmitry Morozovsky
db8665e649 There is no PUC_FASTINTR option anymore.
MFC after:	2 weeks
2008-01-24 12:09:59 +00:00
Pawel Jakub Dawidek
79bc018dd7 - Reduce how much ZFS caches by default. This is another change to mitigate
'kmem_map too small panics'.
- Print two warnings if there is not enough memory and not enough address
  space.
- Improve comment.
2008-01-24 11:24:16 +00:00
Pawel Jakub Dawidek
44ce1efd91 Change type of kmem_used() and kmem_size() functions to uint64_t, so it
doesn't overflow in arc.c in this check:

	if (kmem_used() > (kmem_size() * 4) / 5)
		return (1);

With this bug ZFS almost doesn't cache.

Only 32bit machines are affected that have vm.kmem_size set to values >=1GB.

Reported by:	David Taylor <davidt@yadt.co.uk>
2008-01-24 11:21:54 +00:00
Bjoern A. Zeeb
79ba395267 Replace the last susers calls in netinet6/ with privilege checks.
Introduce a new privilege allowing to set certain IP header options
(hop-by-hop, routing headers).

Leave a few comments to be addressed later.

Reviewed by:	rwatson (older version, before addressing his comments)
2008-01-24 08:25:59 +00:00
Bjoern A. Zeeb
107d12440a Differentiate between addifaddr and delifaddr for the privilege check.
Reviewed by:	rwatson
MFC after:	2 weeks
2008-01-24 08:14:38 +00:00
Ruslan Ermilov
c4579b502b Remove one more alpha leftover. 2008-01-24 07:43:09 +00:00
Scott Long
74018414bf Many improvements that have been collected over time:
- Improve error handling for load operations.
- Fix a memory corruption bug when using certain linux management apps.
- Allocate all commands up front to avoid OOM deadlocks later on.
2008-01-24 07:26:53 +00:00
Ruslan Ermilov
47dd70868b Flag a hack. 2008-01-24 07:25:13 +00:00
Ruslan Ermilov
f0c2fb2d04 Style. 2008-01-24 07:24:30 +00:00
Ruslan Ermilov
e57918352b Shorter equivalent of the command. 2008-01-24 07:04:12 +00:00
Ruslan Ermilov
4ef19e9667 Cosmetique: sort the list. 2008-01-24 07:03:21 +00:00
Tom Rhodes
ce8bff707f Add a diagnostic note about "transmission error ... tx underrun, increasing
tx start threshold ..."  Looking around on the mailing lists, and even having
one of these cards I agree the messages should be documented.

Bump doc date.

PR:	88477
2008-01-24 00:39:38 +00:00
Ruslan Ermilov
51dc1e12ac Support source upgrades from at least 6.0-RELEASE.
Reviewed by:	imp, obrien
2008-01-23 22:21:36 +00:00
Robert Watson
109058b094 tcp_usrreq.c:1.313 removed tcbinfo locking from tcp_usr_accept(), which
while in principle a good idea, opened us up to a race inherrent to
the syncache's direct insertion of incoming TCP connections into the
"completed connection" listen queue, as it transpires that the socket
is inserted before the inpcb is fully filled in by syncache_expand().
The bug manifested with the occasional returning of 0.0.0.0:0 in the
address returned by the accept() system call, which occurred if accept
managed to execute tcp_usr_accept() before syncache_expand() had copied
the endpoint addresses into inpcb connection state.

Re-add tcbinfo locking around the address copyout, which has the effect
of delaying the copy until syncache_expand() has finished running, as
it is run while the tcbinfo lock is held.  This is undesirable in that
it increases contention on tcbinfo further, but a more significant
change will be required to how the syncache inserts new sockets in
order to fix this and keep more granular locking here.  In particular,
either more state needs to be passed into sonewconn() so that
pru_attach() can fill in the fields *before* the socket is inserted, or
the socket needs to be inserted in the incomplete connection queue
until it is actually ready to be used.

Reported by:	glebius (and kris)
Tested by:	glebius
2008-01-23 21:15:51 +00:00
Dag-Erling Smørgrav
b2a9c5a1ba Fix a regression introduced in rev 1.99: replace fclose(f) with a comment
explaining why f cannot possibly be a valid FILE * at this point.

MFC after:	1 day
2008-01-23 20:57:59 +00:00
Chin-San Huang
73e9aa89e8 - Document firewall_nat_enable related settings.
Tested by:	AB
MFC after:	1 month
2008-01-23 16:08:35 +00:00
Alexander Motin
9c10d11388 Fix bundle xmit octets stats for packet-split operation mode. 2008-01-23 11:47:09 +00:00
Maxim Konovalov
ff7aea9b97 o Add boot, gdb, nfsserver and opencrypto dirs to CSCOPEDIRS; sort. 2008-01-23 08:50:34 +00:00
Tim Kientzle
9695c83ff5 Track version # from the portable release. 2008-01-23 05:48:07 +00:00
Tim Kientzle
991a64e41e Explain a subtle API change that was made recently.
Even though I believe this is a good change, it does
have the potential to break certain clients, so it's
good to document the reasoning behind the change.
2008-01-23 05:47:08 +00:00
Tim Kientzle
1466a90ac6 Properly pad symlinks when writing cpio "newc" format.
Thanks to: Jesse Barker for reporting this.
MFC after: 7 days
2008-01-23 05:43:26 +00:00
Andrey A. Chernov
42d4c8a240 "NONE" -> "ASCII" encoding 2008-01-23 04:25:10 +00:00
Jeff Roberson
317da70593 - sched_prio() should only adjust tdq_lowpri if the thread is running or on
a run-queue.  If the priority is numerically raised only change lowpri
   if we're certain it will be correct.  Some slop is allowed however
   previously we could erroneously raise lowpri for an idle cpu that a
   thread had recently run on which lead to errors in load balancing
   decisions.
2008-01-23 03:10:18 +00:00
Andrey A. Chernov
67e7bdee55 Fix longstanding mb/wc functions segfault if error occurse
inside _<encoding>_init().
Currently _EUC_init() only was affected.
2008-01-23 03:05:35 +00:00
Andrey A. Chernov
5ebf111155 Better fix for longstanding segfault. Don't touch current locale at all
on unknown encoding. Previous fix resets it to POSIX.
2008-01-23 02:17:27 +00:00
Andrey A. Chernov
5776848851 1) Add (void) cast to _none_init() (while I am here)
2) Fix longstanding segfault in mb/wc code when unknown encoding is specified
in the locale file (mb/wc functions becomes NULL in that case).
2008-01-23 01:57:26 +00:00
Andrey A. Chernov
50df6ee330 Conditionally add mklocale to bootstrap-tools 2008-01-23 00:16:37 +00:00