Commit Graph

88882 Commits

Author SHA1 Message Date
Bruce A. Mah
0ed2935b68 New release notes: axe(4), newfs(8) -O2 default, sysinstall UFS2
default (i386,alpha,sparc64,ia64).
2003-04-22 22:40:57 +00:00
Jacques Vidrine
5460b1abd2 ``Strong typing is a crutch for people with weak memories.''
Correct a bug that should have wreaked havoc everywhere, but for
some reason only bit unlucky people who use `-march' optimizations.
The compiler cannot assist one in distinguishing between the two
function calls below.

   int nsdispatch(void *, ...);
   void *discard;

   nsdispatch(&discard, ...);  /* correct .. no, really! */
   nsdispatch(discard, ...);   /* Boom                   */

Robin provided me with a debugging environment in which I could see
what was going on.

Badness when using CPUTYPE was
Reported by:	"Robin P. Blanchard" <Robin.Blanchard@gactr.uga.edu>
Reported by:	nork

Sponsored by:	DARPA, Network Associates Laboratories
2003-04-22 22:19:05 +00:00
Daniel Eischen
29fde418c1 Set the quantum for scope system threads to 0 (no quantum). 2003-04-22 21:32:32 +00:00
Poul-Henning Kamp
b874183561 Change the locking so that the _modify function is called with topology
held.

The only place where we want to not hold topology is when we read
(or write) the label to disk: in the case of a disk error with a
long recovery time, holding topology would prevent open/close of
any disk device.
2003-04-22 21:29:58 +00:00
Poul-Henning Kamp
b09d72daf8 We don't need to have a slice->start() function. 2003-04-22 21:24:37 +00:00
Poul-Henning Kamp
d3a1a13766 Do not mandate that slicers have a private ->start(), they may not need
one.  KASSERT() that they have one if G_SLICE_HOT_START is used.
2003-04-22 21:19:17 +00:00
Poul-Henning Kamp
48c0057670 Add "-r" when we initialize the label first time.
Add two more tests.
2003-04-22 21:04:48 +00:00
Poul-Henning Kamp
ea9ab6bed2 Implement handling of CONFIG_GEOM OAM request. 2003-04-22 21:01:46 +00:00
Poul-Henning Kamp
2c30da600e Add "CONFIG_GEOM" operation to the OAM API. 2003-04-22 21:00:49 +00:00
John Baldwin
9752f794c7 - Move PS_PROFIL and its new cousin PS_STOPPROF back over to p_flag and
rename them appropriately.  Protect both flags with both the proc lock
  and the sched_lock.
- Protect p_profthreads with the proc lock.
- Remove Giant from profil(2).
2003-04-22 20:54:04 +00:00
John Baldwin
0b5318c81a - Assert that the proc lock and sched_lock are held in sched_nice().
- For the 4BSD scheduler, this means that all callers of the static
  function resetpriority() now always hold sched_lock, so don't lock
  sched_lock explicitly in that function.
2003-04-22 20:50:38 +00:00
John Baldwin
a15cc35909 Lock both the proc lock and sched_lock when calling sched_nice since
kg_nice is now protected by both.  Being protected by both means that
other places in the kernel that want to read kg_nice only need one of the
two locks.
2003-04-22 20:45:38 +00:00
Daniel Eischen
42a5f6248b Add a working pthread_[gs]etconcurrency. Initial null implementation
provided by Sergey A. Osokin <osa@freebsd.org.ru>.

In order to test this on a single CPU machine, you need to:

    sysctl kern.threads.debug=1
    sysctl kern.threads.virtual_cpu=2
2003-04-22 20:29:16 +00:00
Daniel Eischen
6dee371a55 Add a couple asserts to pthread_cond_foo to ensure the (low-level)
lock level is 0.  Thus far, the threads implementation doesn't use
mutexes or condition variables so the lock level should be 0.

Save the return value when trying to schedule a new thread and
use this to return an error from pthread_create().

Change the max sleep time for an idle KSE to 1 minute from 2 minutes.

Maintain a count of the number of KSEs within a KSEG.

With these changes scope system threads seem to work, but heavy
use of them crash the kernel (supposedly VM bugs).
2003-04-22 20:28:33 +00:00
John Baldwin
897ecacd64 Lock the proc to check p_flag and several other related tests in
vm_daemon().  We don't need to hold sched_lock as long now as a result.
2003-04-22 20:03:08 +00:00
John Baldwin
eeec6bab2e Prefer the proc lock to sched_lock when testing PS_INMEM now that it is
safe to do so.
2003-04-22 20:01:56 +00:00
John Baldwin
664f718ba1 - Always call faultin() in _PHOLD() if PS_INMEM is clear. This closes a
race where a thread could assume that a process was swapped in by
  PHOLD() when it actually wasn't fully swapped in yet.
- In faultin(), always msleep() if PS_SWAPPINGIN is set instead of doing
  this check after bumping p_lock in the PS_INMEM == 0 case.  Also,
  sched_lock is only needed for setting and clearning swapping PS_*
  flags and the swap thread inhibitor.
- Don't set and clear the thread swap inhibitor in the same loops as the
  pmap_swapin/out_thread() since we have to do it under sched_lock.
  Instead, mimic the treatment of the PS_INMEM flag and use separate loops
  to set the inhibitors when clearing PS_INMEM and clear the inhibitors
  when setting PS_INMEM.
- swapout() now returns with the proc lock held as it holds the lock
  while adjusting the swapping-related PS_* flags so that the proc lock
  can be used to test those flags.
- Only use the proc lock to check the swapping-related PS_* flags in
  several places.
- faultin() no longer requires sched_lock to be held by callers.
- Rename PS_SWAPPING to PS_SWAPPINGOUT to be less ambiguous now that we
  have PS_SWAPPINGIN.
2003-04-22 20:00:26 +00:00
Johan Karlsson
c0bb08c5ed Make this WARNS=2 clean by using %j and (uintmax_t).
Reviewed by:	tjr@ on audit@
Approved by:	silence from sos@
2003-04-22 19:57:46 +00:00
John Baldwin
828e7683bf Protect p_swtime with the sched_lock. 2003-04-22 19:48:25 +00:00
John Baldwin
a6f37ac9d6 - Mark the kse_purge_group() and kse_purge() definitions static to match
their prototypes.
- Remove sched_lock locking from kse_purge() as all callers already lock
  the sched_lock before calling it.
- Hold the proc lock slightly longer to protect P_SHOULDSTOP().
2003-04-22 19:47:55 +00:00
John Baldwin
7b5e3e1239 Keep the proc locked while we set PS_INMEM so that either of the proc lock
or sched_lock are sufficient to test this flag.

XXX: vinum should really be using a kernel process via kthread_create()
instead of this hack.  I'm not even sure PS_INMEM can be clear at this
point anyways.
2003-04-22 19:45:26 +00:00
Poul-Henning Kamp
70b4ddbb09 Collapse meta arguments into regular arguments, the distinction is
more trouble than it is worth.
2003-04-22 19:42:05 +00:00
Poul-Henning Kamp
64a5766ef7 Collapse the meta arguments into normal arguments, trying to distinguish
just makes our own life harder.
2003-04-22 19:31:00 +00:00
Tom Rhodes
2d93d309a7 Use .Pa for the pccard_ether file.
s/spppconfig/spppcontrol/

Submitted by:	"Simon L. Nielsen" <simon@nitro.dk>
2003-04-22 18:53:14 +00:00
John Baldwin
fe8cdcae87 - Replace inline implementations of sigprocmask() with calls to
kern_sigprocmask() in the various binary compatibility emulators.
- Replace calls to sigsuspend(), sigaltstack(), sigaction(), and
  sigprocmask() that used the stackgap with calls to the corresponding
  kern_sig*() functions instead without using the stackgap.
2003-04-22 18:23:49 +00:00
Tom Rhodes
3301bb2349 Catch this file up with ufs/ffs/fs.h.
PR:		51189
Submitted by:	Lukas Ertl <l.ertl@univie.ac.at>
2003-04-22 18:20:44 +00:00
Alan Cox
2e9d00a15d Revision 1.246 should have also included
- Weaken the assertion in vm_page_insert() to require Giant only if the
   vm_object isn't locked.

Reported by:	 "Ilmar S. Habibulin" <ilmar@watson.org>
2003-04-22 14:26:02 +00:00
Ruslan Ermilov
7cc7315cfb chdir(1) into a source directory before attempting to determine the
OBJS list.  This is needed to crunch any program that relies on the
correct .CURDIR setting, e.g. src/bin/csh.

Submitted by:	Tim Kientzle <kientzle@acm.org>
2003-04-22 14:01:33 +00:00
Mike Barcroft
90e0c23cb9 IP addresses can be up to 15 characters long, not 12.
PR:     50904
2003-04-22 13:24:56 +00:00
Yoshihiro Takahashi
2f4f42d484 Comment out firewire devices. 2003-04-22 12:14:19 +00:00
Ruslan Ermilov
2244cda2bc Axe CXXINCLUDES from CXXFLAGS, it serves no useful purpose anymore.
Reviewed by:	bde
2003-04-22 11:04:25 +00:00
Greg Lehey
fc9726d014 Add Vladimir Ulyanov's birthday.
Reminded by: joerg (born 92 years later, to the day).
2003-04-22 10:33:43 +00:00
Ruslan Ermilov
8d739a3f28 Bump document date for previous revision.
Fix list type.
2003-04-22 09:39:10 +00:00
David Xu
97637bcfb2 Move down intr level testing code a bit, cpu_switch_load_gs fault can be at
interrupt nested time.
2003-04-22 08:12:03 +00:00
Hidetoshi Shimokawa
18321f9a37 add FireWire drivers. 2003-04-22 07:57:20 +00:00
David Xu
5515888875 Fix some problems for cpu_switch_load_gs. when fault address is at
cpu_switch_load_gs, cpu is in context switch, so don't enable interrupt.
because it is in context switch, it is expected sched_lock was held,
so don't PROC_LOCK(p) and psignal, it is LOR, probably we can
set a P_XSIGBUS like flag in p_sflags, and set TDF_ASTPENDING in
td_flags, in ast(), post a SIGBUS to process if P_XSIGBUS was set.
2003-04-22 07:45:47 +00:00
Alan Cox
26da32cc73 Remove unused declarations. 2003-04-22 06:26:42 +00:00
Alan Cox
03d4c1e644 Revision 1.52 of vm/uma_core.c has led to UMA's obj_alloc() being
called without Giant; and obj_alloc() in turn calls vm_page_alloc()
without Giant.  This causes an assertion failure in vm_page_alloc().
Fortunately, obj_alloc() is now MPSAFE.  So, we need only clean up
some assertions.

 - Weaken the assertion in vm_page_lookup() to require Giant only
   if the vm_object isn't locked.
 - Remove an assertion from vm_page_alloc() that duplicates a check
   performed in vm_page_lookup().

In collaboration with:	gallatin, jake, jeff
2003-04-22 05:36:14 +00:00
Poul-Henning Kamp
32c44cd7bb Fix compilation errors.
I wonder how I managed to cross-compile this yesterday.
2003-04-22 05:34:35 +00:00
Doug Barton
62bb7f3301 FreeBSD has no systrace(1), and our rc.subr does not support it.
Submitted by:	Simon L. Nielsen <simon@nitro.dk>
2003-04-22 05:13:55 +00:00
Alan Cox
1c067f7ebc Add VM_OBJECT_LOCKED(). 2003-04-22 04:47:29 +00:00
Hidetoshi Shimokawa
f73a5a7f66 add scbus for FireWire. 2003-04-22 04:39:20 +00:00
Warner Losh
bf2331bae4 Document device_set_driver(9)
# now all driver_* functions used outside of subr_bus.o in my kernel
# are documented.
2003-04-22 03:43:44 +00:00
Warner Losh
6e684dce35 Document device_printf(9). 2003-04-22 03:32:31 +00:00
Warner Losh
c56c6bab42 Document device_set_ivars(9) as well. 2003-04-22 03:25:14 +00:00
David Xu
5b70587b8a Remove single threading detecting code, these code really should be
replaced by thread_user_enter(), but current we don't want to enable
this in trap.
2003-04-22 03:17:41 +00:00
Hidetoshi Shimokawa
85b2d114c0 Set the local bus address in xfer->dst.
Submitted by: Buzz Slye <buzz@gaia.arc.nasa.gov>
2003-04-22 02:31:31 +00:00
Marcel Moolenaar
148eac48f1 Don't use the tpa instruction to implement pmap_kextract. The tpa
instruction requires that a translation is present in the TC. This
may trigger a TLB miss and a subsequent call to vm_fault().
This implementation is deliberately non-inline for debugging and
profiling purposes. Partial or full inlining should eventually be
done.

Valuable insights by: jake
2003-04-22 01:48:43 +00:00
Warner Losh
44d993e38a man page for device_get_parent. 2003-04-22 00:26:02 +00:00
Warner Losh
c82d43ff7a device_is_alive already was documented in device_get_state, so remove the
separate man page.  Document new device_is_attached there and remove that
new man page too.

Connect device_get_name to build, and install a link for
device_get_nameunit.

strangely nobody noticed this yet...
2003-04-22 00:21:28 +00:00