dragonfly.git
12 years agoBring ifnet(9) a bit closer to reality.
Sascha Wildner [Sun, 11 May 2008 07:11:47 +0000 (07:11 +0000)]
Bring ifnet(9) a bit closer to reality.

12 years agoAdd an ffs(5) manual page.
Sascha Wildner [Sun, 11 May 2008 06:46:20 +0000 (06:46 +0000)]
Add an ffs(5) manual page.

Adapted-from: FreeBSD's ffs(7)

12 years agoAdd useconds_t and suseconds_t used for time in microseconds.
Hasso Tepper [Sun, 11 May 2008 03:39:49 +0000 (03:39 +0000)]
Add useconds_t and suseconds_t used for time in microseconds.

12 years agoHAMMER Utilities: scan feedback
Matthew Dillon [Sat, 10 May 2008 22:56:37 +0000 (22:56 +0000)]
HAMMER Utilities: scan feedback

* Add support for and report the number of records scanned by the pruning
  code

12 years agoComment out some unimplemented syscalls.
Sascha Wildner [Sat, 10 May 2008 20:39:51 +0000 (20:39 +0000)]
Comment out some unimplemented syscalls.

12 years agoHAMMER 42C/Many: Stabilization.
Matthew Dillon [Sat, 10 May 2008 20:07:14 +0000 (20:07 +0000)]
HAMMER 42C/Many: Stabilization.

* Fix a deadlock.  Do not flush synchronously while holding a cursor (this
  time in the prune code).

12 years agoHAMMER 42B/Many: Stabilization.
Matthew Dillon [Sat, 10 May 2008 19:52:38 +0000 (19:52 +0000)]
HAMMER 42B/Many: Stabilization.

* Fix a CRC panic when reblocking.  Properly regenerate the CRC for new
  records and B-Tree nodes.

* Fix a deadlock.  Do not flush synchronously while holding a cursor.  Doh!

12 years agoFix function name.
Sascha Wildner [Sat, 10 May 2008 18:22:41 +0000 (18:22 +0000)]
Fix function name.

12 years agoHAMMER Utilities: Feature add
Matthew Dillon [Sat, 10 May 2008 17:54:59 +0000 (17:54 +0000)]
HAMMER Utilities: Feature add

* Add another shortcut to the prune command, telling HAMMER to prune everything
  past a certain point.  For example, this will recover anything deleted over
  a year ago: 'hammer prune /mnt from 365d everything'

12 years agoFix function name.
Sascha Wildner [Sat, 10 May 2008 17:52:10 +0000 (17:52 +0000)]
Fix function name.

12 years agoFinish moving the kernel from tsc_freq (32 bits) to tsc_frequency (64 bits).
Matthew Dillon [Sat, 10 May 2008 17:24:12 +0000 (17:24 +0000)]
Finish moving the kernel from tsc_freq (32 bits) to tsc_frequency (64 bits).

Add sysctls to access hw.tsc_present and hw.tsc_frequency

Implement TSC support in the vkernel.

12 years agoiwi(4) does not support hardware based WEP encryption/descryption.
Sepherosa Ziehau [Sat, 10 May 2008 07:11:28 +0000 (07:11 +0000)]
iwi(4) does not support hardware based WEP encryption/descryption.

Reported-by: Johannes Hofmann <Johannes.Hofmann@gmx.de>
12 years agoFix feature logic so changing kern.pipe.dwrite_enable on the fly works
Matthew Dillon [Sat, 10 May 2008 01:25:55 +0000 (01:25 +0000)]
Fix feature logic so changing kern.pipe.dwrite_enable on the fly works
properly.  Before it could cause processes to block forever.

12 years agoSync member functions with our struct ifnet.
Sascha Wildner [Fri, 9 May 2008 22:38:35 +0000 (22:38 +0000)]
Sync member functions with our struct ifnet.

12 years agoHAMMER 42A/Many: Stabilization.
Matthew Dillon [Fri, 9 May 2008 22:17:43 +0000 (22:17 +0000)]
HAMMER 42A/Many: Stabilization.

* Fix a double call to biodone() when attempting to flush front-end buffer
  cache buffers associated with a deleted file.  A return statement was
  missing.

12 years agoUse .Dv for signal names.
Sascha Wildner [Fri, 9 May 2008 20:31:04 +0000 (20:31 +0000)]
Use .Dv for signal names.

12 years agoFix a HAMMER assertion which turned out to be a bug in VOP_N*(). Sometimes
Matthew Dillon [Fri, 9 May 2008 17:52:18 +0000 (17:52 +0000)]
Fix a HAMMER assertion which turned out to be a bug in VOP_N*().  Sometimes
the dvp passed to these functions can be reclaimed.  The locked leaf
namecache node is not sufficient to prevent its parent directory from
being reclaimed under heavy loads.

Instead of trying to play cute tricks, actually do a formal reference of
the dvp.  We don't have to lock it, though.

12 years agoReturn EINVAL if a NULL pointer is passed to the mutex routines, instead
Matthew Dillon [Fri, 9 May 2008 16:03:27 +0000 (16:03 +0000)]
Return EINVAL if a NULL pointer is passed to the mutex routines, instead
of crashing.  This appears to be what the standard intended and what libc_r
does.

12 years agoSync sysperf with some random stuff, and add a cld instruction tester.
Matthew Dillon [Fri, 9 May 2008 15:49:42 +0000 (15:49 +0000)]
Sync sysperf with some random stuff, and add a cld instruction tester.

12 years agoMake the code we're running under total signal mask as short as possible.
Simon Schubert [Fri, 9 May 2008 11:24:08 +0000 (11:24 +0000)]
Make the code we're running under total signal mask as short as possible.

This fixes a hang when calling pthread_create(NULL, ...), which was due
to the fact that we hit a SIGSEGV while under total signal mask, leading
to infinite page faults.

12 years agoHAMMER 42/Many: Cleanup.
Matthew Dillon [Fri, 9 May 2008 07:26:51 +0000 (07:26 +0000)]
HAMMER 42/Many: Cleanup.

* Finish up the general code to associate an inode with a cursor.

12 years agoFix many bugs and issues in the VM system, particularly related to
Matthew Dillon [Fri, 9 May 2008 07:24:48 +0000 (07:24 +0000)]
Fix many bugs and issues in the VM system, particularly related to
heavy paging.

* (cleanup) PG_WRITEABLE is now set by the low level pmap code and not by
  high level code.  It means 'This page may contain a managed page table
  mapping which is writeable', meaning that hardware can dirty the page
  at any time.  The page must be tested via appropriate pmap calls before
  being disposed of.

* (cleanup) PG_MAPPED is now handled by the low level pmap code and only
  applies to managed mappings.  There is still a bit of cruft left over
  related to the pmap code's page table pages but the high level code is now
  clean.

* (bug) Various XIO, SFBUF, and MSFBUF routines which bypass normal paging
  operations were not properly dirtying pages when the caller intended
  to write to them.

* (bug) vfs_busy_pages in kern/vfs_bio.c had a busy race.  Separate the code
  out to ensure that we have marked all the pages as undergoing IO before we
  call vm_page_protect().  vm_page_protect(... VM_PROT_NONE) can block
  under very heavy paging conditions and if the pages haven't been marked
  for IO that could blow up the code.

* (optimization) Make a minor optimization.  When busying pages for write
  IO, downgrade the page table mappings to read-only instead of removing
  them entirely.

* (bug) In platform/pc32/i386/pmap.c fix various places where
  pmap_inval_add() was being called at the wrong point.  Only one was
  critical, in pmap_enter(), where pmap_inval_add() was being called so far
  away from the pmap entry being modified that it could wind up being flushed
  out prior to the modification, breaking the cpusync required.

  pmap.c also contains most of the work involved in the PG_MAPPED and
  PG_WRITEABLE changes.

* (bug) Close numerous pte updating races with hardware setting the
  modified bit.  There is still one race left (in pmap_enter()).

* (bug) Disable pmap_copy() entirely.   Fix most of the bugs anyway, but
  there is still one left in the handling of the srcmpte variable.

* (cleanup) Change vm_page_dirty() from an inline to a real procedure, and
  move the code which set the object to writeable/maybedirty into
  vm_page_dirty().

* (bug) Calls to vm_page_protect(... VM_PROT_NONE) can block.  Fix all cases
  where this call was made with a non-busied page.  All such calls are
  now made with a busied page, preventing blocking races from re-dirtying
  or remapping the page unexpectedly.

  (Such blockages could only occur during heavy paging activity where the
  underlying page table pages are being actively recycled).

* (bug) Fix the pageout code to properly mark pages as undergoing I/O before
  changing their protection bits.

* (bug) Busy pages undergoing zeroing or partial zeroing in the vnode pager
  (vm/vnode_pager.c) to avoid unexpected effects.

12 years agoFix fork/vfork statistics. forks and vforks were being improperly counted
Matthew Dillon [Fri, 9 May 2008 06:38:19 +0000 (06:38 +0000)]
Fix fork/vfork statistics.  forks and vforks were being improperly counted
as rforks.

12 years agoFix a nasty memory corruption issue which can occur due to the kernel bcopy's
Matthew Dillon [Fri, 9 May 2008 06:35:12 +0000 (06:35 +0000)]
Fix a nasty memory corruption issue which can occur due to the kernel bcopy's
use of the FP unit.  If the destination address faults the NPX code can
lose track of the fact that the kernel was using the FP unit.  When the
fault is resolved the kernel bcopy resumes with corrupted FP registers.

The most common situation where this could occur is with pipes, and generally
only when the system is paging heavily and causing multiple processes to
fault in the kernel FP bcopy code.

12 years agoFix a race between the namecache and the vnode recycler. A vnode cannot be
Matthew Dillon [Thu, 8 May 2008 01:41:07 +0000 (01:41 +0000)]
Fix a race between the namecache and the vnode recycler.  A vnode cannot be
recycled if it's namecache entry represents a directory with locked children.
The various VOP_N*() functions require the parent dvp to be stable.

The main fix is in vrecycle() (kern/vfs_subr.c).  Do not vgone() the vnode
if we can't clean out the children.

Also create an API to assert that the parent dvp is stable, and make it
vhold/vdrop the dvp.

The race primarily effected HAMMER which uses the VOP_N*() API.

12 years agoFix some lock ordering issues in the pipe code.
Matthew Dillon [Thu, 8 May 2008 01:31:01 +0000 (01:31 +0000)]
Fix some lock ordering issues in the pipe code.

In particular fix a bug in the pipe_write() code when multiple writers
are present that could cause garbage to be injected into the pipe due
to a resize possibly occuring while wpipe->pipe_buffer.cnt is non-zero.

12 years agoRecode the resource limit core (struct plimit) to fix a few races and
Matthew Dillon [Thu, 8 May 2008 01:26:01 +0000 (01:26 +0000)]
Recode the resource limit core (struct plimit) to fix a few races and
generally make it work better.  Also make changes with an eye towards
making it MPSAFE.

12 years agoClear the direction flag (CLD) on entry to the kernel, to support future
Matthew Dillon [Thu, 8 May 2008 01:21:06 +0000 (01:21 +0000)]
Clear the direction flag (CLD) on entry to the kernel, to support future
kernels compiled with GCC-4.3 or later.

12 years agoAdd some lines about lwkt_serialize_adaptive_enter().
Sascha Wildner [Wed, 7 May 2008 20:03:09 +0000 (20:03 +0000)]
Add some lines about lwkt_serialize_adaptive_enter().

Submitted-by: sephe
12 years agoBump base development version to 197700 so it is properly distinct from
Matthew Dillon [Wed, 7 May 2008 17:26:28 +0000 (17:26 +0000)]
Bump base development version to 197700 so it is properly distinct from
the 1.12 release version.

Reported-by: Hasso Tepper
12 years agoCorrect comments and minor variable naming and sysctl issues.
Matthew Dillon [Wed, 7 May 2008 17:19:47 +0000 (17:19 +0000)]
Correct comments and minor variable naming and sysctl issues.

Reported-by: Fabio Checconi <fabio@gandalf.sssup.it>
12 years agoFix a sizeof() the wrong variable name. The correct variable was the same
Matthew Dillon [Tue, 6 May 2008 21:40:40 +0000 (21:40 +0000)]
Fix a sizeof() the wrong variable name.  The correct variable was the same
size so no harm done, but get it right.

Submitted-by: Fabio Checconi <fabio@gandalf.sssup.it>
12 years agoThe vkernel's maximum number of CPUs is now 16.
Sascha Wildner [Tue, 6 May 2008 18:55:01 +0000 (18:55 +0000)]
The vkernel's maximum number of CPUs is now 16.

12 years agoEnable kern.trap_mpsafe and kern.syscall_mpsafe by default for vkernels.
Matthew Dillon [Tue, 6 May 2008 18:43:02 +0000 (18:43 +0000)]
Enable kern.trap_mpsafe and kern.syscall_mpsafe by default for vkernels.

12 years agoRemove the SMP_MAXCPU override for vkernels, causing the build to revert
Matthew Dillon [Tue, 6 May 2008 18:37:58 +0000 (18:37 +0000)]
Remove the SMP_MAXCPU override for vkernels, causing the build to revert
to the i386 limit of 16.  This is not because vkernels couldn't handle more
(up to 31), but because I want the installed world to be compatible between
vkernel and pc32.

This unbreaks programs like 'vmstat -m'.

12 years agoAdd strings for some AMD features
Sepherosa Ziehau [Tue, 6 May 2008 10:05:02 +0000 (10:05 +0000)]
Add strings for some AMD features

12 years agoHAMMER 41B/Many: Cleanup.
Matthew Dillon [Tue, 6 May 2008 00:21:08 +0000 (00:21 +0000)]
HAMMER 41B/Many: Cleanup.

* Disable (most) debugging kprintfs unless a hammer debug sysctl is set.

* Do not allow buffers to be synced on panic.

12 years agoHAMMER Utilities: Sync with recent changes.
Matthew Dillon [Tue, 6 May 2008 00:15:35 +0000 (00:15 +0000)]
HAMMER Utilities: Sync with recent changes.

* Add some missing crc initializations.

* Fix an assertion that was breaking newfs_hammer on large disks.

12 years agoKeep track of the number of buffers undgoing IO, and include that number
Matthew Dillon [Tue, 6 May 2008 00:14:12 +0000 (00:14 +0000)]
Keep track of the number of buffers undgoing IO, and include that number
in calculations involving numdirtybuffers.  This prevents the kernel from
believing that there are only a few dirty buffers when, in fact, all the
dirty buffers are running IOs.

12 years agoOnly call bwillwrite() for regular file write()s, instead of for all write()s.
Matthew Dillon [Mon, 5 May 2008 22:09:44 +0000 (22:09 +0000)]
Only call bwillwrite() for regular file write()s, instead of for all write()s.
This stops hicuping on things like pty's and sockets during heavy file
activity.

12 years agoHAMMER Utilities: Feature add
Matthew Dillon [Mon, 5 May 2008 20:34:52 +0000 (20:34 +0000)]
HAMMER Utilities: Feature add

* Check record crc and signature in extra-verbose mode

* Adjustments for structural changes

* Generate proper CRCs for structures laid down by newfs_hammer

12 years agoHAMMER 41/Many: Implement CRC checking (WARNING: On-media structures changed)
Matthew Dillon [Mon, 5 May 2008 20:34:48 +0000 (20:34 +0000)]
HAMMER 41/Many: Implement CRC checking (WARNING: On-media structures changed)

* Generate and check on-media CRC fields.

* Clean up the record modification API

* Add a header signature field for future critical recovery

* Rearrange CRC fields for on-media structures to make them easier to
  deal with.

* Adjust the ioctl API

* When trying to back-out of an operation that errored, free allocated
  data blocks.

12 years ago- Add lwkt_serialize_adaptive_enter(9), it is same as lwkt_serialize_enter(9)
Sepherosa Ziehau [Mon, 5 May 2008 12:35:03 +0000 (12:35 +0000)]
- Add lwkt_serialize_adaptive_enter(9), it is same as lwkt_serialize_enter(9)
  except that it spins a little bit before sleeping.
- Under debug sysctl tree, add sysctl nodes to tune various backoff related
  parameter for lwkt_serialize_adaptive_enter(9).
- Add ktr for serializer enter end, exit begin, spin backoff and spin backoff
  failure.

Reviewed-by: corecode@
12 years agoUse mask instead of modulo, since bo->backoff is always power of 2
Sepherosa Ziehau [Mon, 5 May 2008 11:07:48 +0000 (11:07 +0000)]
Use mask instead of modulo, since bo->backoff is always power of 2

Suggested-by: dillon@
12 years agoHAMMER 40G/Many: UNDO cleanup & stabilization.
Matthew Dillon [Sun, 4 May 2008 19:57:42 +0000 (19:57 +0000)]
HAMMER 40G/Many: UNDO cleanup & stabilization.

* Fix a race in the undo record allocator that could result in a
  corrupted UNDO FIFO.

* Fix improperly placed calls to hammer_test_inode().

* Properly account for nlinks when a deleted ADD record is to be
  converted to a DEL record by the flush.  In this case the frontend's
  notion of nlinks accounts for the deletion but the backend must sync
  the record anyway, so the backend needs to bump the link count by one.

12 years agoHAMMER Utilities: enhanced show, timeout option
Matthew Dillon [Sun, 4 May 2008 19:18:17 +0000 (19:18 +0000)]
HAMMER Utilities: enhanced show, timeout option

* Enchange the show command when used with -vvv.  The command now reports
  directory entries and basic information about inodes.

* Add the [-t timeout] option.  The idea is to use this to limit the amount
  of time hammer spends reblocking or pruning a filesystem when running the
  command from a cron job.

* Adjust the format of the softlink option to be more consistent.

12 years agoAdjust to our current directory layout on pkgbox.
Sascha Wildner [Sun, 4 May 2008 17:07:49 +0000 (17:07 +0000)]
Adjust to our current directory layout on pkgbox.

Reported-by: aggelos and others
12 years agoHAMMER 40F/Many: UNDO cleanup & stabilization.
Matthew Dillon [Sun, 4 May 2008 09:06:45 +0000 (09:06 +0000)]
HAMMER 40F/Many: UNDO cleanup & stabilization.

* Properly classify UNDO zone buffers so they are flushed at the correct
  point in time.

* Minor rewrite of the code tracking the UNDO demark for the next flush.

* Introduce a considerably better backend flushing activation algorithm
  to avoid single-buffer flushes.

* Put a lock around the freemap allocator.

12 years agoThe direct-write pipe code has a bug in it somewhere when the system is
Matthew Dillon [Sun, 4 May 2008 08:42:03 +0000 (08:42 +0000)]
The direct-write pipe code has a bug in it somewhere when the system is
paging heavily.  Disable it for now.

12 years ago- Randomize spinlock exponential backoff value, which reduces the chance of
Sepherosa Ziehau [Sun, 4 May 2008 04:48:47 +0000 (04:48 +0000)]
- Randomize spinlock exponential backoff value, which reduces the chance of
  serious spinlock contention (probably) caused by same backoff steps
- Ktr spinlock backoff value and backoff failure
- Under debug sysctl tree, add sysctl node for spinlock backoff limit
- Break long lines

Reviewed-by: dillon@
12 years agoAdd more missing entries and fix more mistakes (some of which I introduced
Sascha Wildner [Sun, 4 May 2008 04:17:11 +0000 (04:17 +0000)]
Add more missing entries and fix more mistakes (some of which I introduced
in my last commit).

12 years agoFix some mistakes and add some missing entries.
Sascha Wildner [Sun, 4 May 2008 03:44:07 +0000 (03:44 +0000)]
Fix some mistakes and add some missing entries.

12 years agoPrint the 64 bit inode as a 64 bit quantity rather then a 32 bit quantity.
Matthew Dillon [Sun, 4 May 2008 02:28:28 +0000 (02:28 +0000)]
Print the 64 bit inode as a 64 bit quantity rather then a 32 bit quantity.

12 years agoAdd missing names and MLINKS.
Sascha Wildner [Sun, 4 May 2008 00:55:01 +0000 (00:55 +0000)]
Add missing names and MLINKS.

12 years agoCorrect a bug in seekdir/readdir which could cause the directory entry
Matthew Dillon [Sat, 3 May 2008 22:07:37 +0000 (22:07 +0000)]
Correct a bug in seekdir/readdir which could cause the directory entry
after a deleted entry to be skipped when seeking past the deleted entry.

NOTE: DragonFly has a specific issue even after this fix which currently
causes seekdirs to be unreliable if any files are deleted.  DragonFly
translates directory entries into a filesystem-independant form and if
the real filesystem collapses the entry, the offsets will not be maintained
in the machine-independant form.

Submitted-by: Marc Balmer <marc@msys.ch>
12 years agoHAMMER 40F/Many: Inode/link-count sequencer cleanup pass, UNDO cache.
Matthew Dillon [Sat, 3 May 2008 20:21:20 +0000 (20:21 +0000)]
HAMMER 40F/Many: Inode/link-count sequencer cleanup pass, UNDO cache.

* Implement an UNDO cache.  If we have already laid down an UNDO in the
  current flush cycle we do not have to lay down another one for the same
  address.  This greatly reduces the number of UNDOs we generate during
  a flush.

* Properly get the vnode in order to be able to issue vfsync()'s from the
  backend.  We may also have to acquire the vnode when doing an unload
  check for a file deletion.

* Properly generate UNDO records for the volume header.  During crash recovery
  we have to UNDO the volume header along with any partially written
  meta-data, because the volume header refers to the meta-data.

* Add another record type, GENERAL, representing inode or softlink records.

* Move the setting of HAMMER_INODE_WRITE_ALT to the backend, allowing
  the kernel to flush buffers up to the point where the backend syncs
  the inode.

12 years agoHAMMER 40E/Many: Inode/link-count sequencer cleanup pass.
Matthew Dillon [Sat, 3 May 2008 07:59:06 +0000 (07:59 +0000)]
HAMMER 40E/Many: Inode/link-count sequencer cleanup pass.

* An inode can go inactive before it is deleted, add an unload check
  in hammer_ip_del_directory to catch the nlinks == 0 case on an inactive
  inode.  Otherwise the inode would not be deleted on-media until umount.

* Add a missing resignaling case.

* Clean out a few more of the debug kprintf()'s

12 years agoHAMMER 40D/Many: Inode/link-count sequencer cleanup pass.
Matthew Dillon [Sat, 3 May 2008 05:28:55 +0000 (05:28 +0000)]
HAMMER 40D/Many: Inode/link-count sequencer cleanup pass.

* Move the vfsync from the frontend to the backend.  This allows the
  frontend to passively move inodes to the backend without having to
  actually start the flush, greatly improving performance.

* Use an inode lock to deal with directory entry syncing races between
  the frontend and the backend.  It isn't optimal but it's ok for now.

* Massively optimize the backend code by initializing a single cursor
  for an inode and passing the cursor to procedures, instead of having
  each procedure initialize its own cursor.

* Fix a sequencing issue with the backend.  While building the flush
  state for an inode another process could get in and initiate its own
  flush, screwing up the flush group and creating confusion.
  (hmp->flusher_lock)

* Don't lose track of HAMMER_FLUSH_SIGNAL flush requests.  If we get
  such a requet but have to flag a reflush, also flag that the reflush
  is to be signaled (done immediately when the current flush is done).

* Remove shared inode locks from hammer_vnops.c.  Their original purpose
  no longer exists.

* Simplify the arguments passed to numerous procedures (hammer_ip_first(),
  etc).

12 years agoPrint the path even if we do not understand the filesystem type.
Matthew Dillon [Sat, 3 May 2008 04:13:12 +0000 (04:13 +0000)]
Print the path even if we do not understand the filesystem type.

Fix a switch/case compiler warning.

12 years agoElaborate a bit more on lexical conventions and ISA device configuration.
Sascha Wildner [Fri, 2 May 2008 22:10:58 +0000 (22:10 +0000)]
Elaborate a bit more on lexical conventions and ISA device configuration.

Taken-from: FreeBSD

12 years agoHAMMER 40C/Many: Inode/link-count sequencer cleanup pass.
Matthew Dillon [Fri, 2 May 2008 16:41:26 +0000 (16:41 +0000)]
HAMMER 40C/Many: Inode/link-count sequencer cleanup pass.

* Fix a forever-syncing inode issue by properly clearing the XDIRTY flag
  when the last record is removed from ip->rec_tree.

12 years ago- Put exit ktr in proper place
Sepherosa Ziehau [Fri, 2 May 2008 11:17:19 +0000 (11:17 +0000)]
- Put exit ktr in proper place
- Add sleep_{beg,end} and wakeup_{beg,end} ktr

12 years agoWhite space
Sepherosa Ziehau [Fri, 2 May 2008 10:57:33 +0000 (10:57 +0000)]
White space

12 years agoUse a list with tags.
Sascha Wildner [Fri, 2 May 2008 10:46:33 +0000 (10:46 +0000)]
Use a list with tags.

12 years agoIntroduce ETHER_INPUT_CHAIN option:
Sepherosa Ziehau [Fri, 2 May 2008 07:40:32 +0000 (07:40 +0000)]
Introduce ETHER_INPUT_CHAIN option:
1) During RXEOF, we aggregate packets, which have same target CPU, instead of
   calling lwkt_sendmsg() for each input packet.
2) At the end of RXEOF, low level ipiq sending is used to dispatch mbuf chain
   to the target CPU.
3) On the target CPU, the ipi function puts mbuf to their belonging msgport.
   Note, though lwkt_sendmsg() is used in ipi function, no further ipi activity
   will happen, since we are on target CPU.

em(4) is made to aware of this option.
This option is off by default and has no effect on vlan(4) operation.

12 years agoHAMMER 40B/Many: Inode/link-count sequencer cleanup pass.
Matthew Dillon [Fri, 2 May 2008 06:51:57 +0000 (06:51 +0000)]
HAMMER 40B/Many: Inode/link-count sequencer cleanup pass.

* Fix data record leakage w/ final inode disposition on disk.

* Fix numerous live locks with infinitely re-syncing inodes.

12 years agoSweep over our manual pages and remove .Pp before a .Bd or .Bl without
Sascha Wildner [Fri, 2 May 2008 02:05:08 +0000 (02:05 +0000)]
Sweep over our manual pages and remove .Pp before a .Bd or .Bl without
-compact because it has no effect.

12 years agoHAMMER 40A/Many: Inode/link-count sequencer.
Matthew Dillon [Fri, 2 May 2008 01:00:42 +0000 (01:00 +0000)]
HAMMER 40A/Many: Inode/link-count sequencer.

* Remove the hammer_depend structure and build the dependancies directly
  into the hammer_record structure.

* Attempt to implement layout rules to ensure connectivity is maintained.
  This means, for example, that before HAMMER can flush a newly created
  file it will make sure the file has namespace connectivity to the
  directory it was created it, recursively to the root.

NOTE: 40A destabilizes the filesystem a bit, it's going to take a few
passes to get everything working properly.  There are numerous issues
with this commit.

12 years agoProperly yield to userland processes.
Simon Schubert [Fri, 2 May 2008 00:19:52 +0000 (00:19 +0000)]
Properly yield to userland processes.

12 years agoMove text that doesn't belong to a list outside of it.
Sascha Wildner [Thu, 1 May 2008 23:36:43 +0000 (23:36 +0000)]
Move text that doesn't belong to a list outside of it.

12 years agoAdd .It
Sascha Wildner [Thu, 1 May 2008 23:29:10 +0000 (23:29 +0000)]
Add .It

12 years agoMove .Pp outside of .Bl
Sascha Wildner [Thu, 1 May 2008 22:06:06 +0000 (22:06 +0000)]
Move .Pp outside of .Bl

12 years agoReduce vertical space.
Sascha Wildner [Thu, 1 May 2008 21:51:43 +0000 (21:51 +0000)]
Reduce vertical space.

12 years agoRemove some obsolete lines.
Sascha Wildner [Thu, 1 May 2008 20:24:01 +0000 (20:24 +0000)]
Remove some obsolete lines.

12 years agoTurn off yy_flex_realloc() related warnings (such as the one issued when
Sascha Wildner [Thu, 1 May 2008 20:01:24 +0000 (20:01 +0000)]
Turn off yy_flex_realloc() related warnings (such as the one issued when
building usr.sbin/config) by marking the function unused.

There are a number of things which decide whether it's used or not, such
as using REJECT, %option yylineno, and some trailing context patterns.

See NetBSD's revisions 1.10 & 1.19.

Taken-from: NetBSD

12 years agoSet a sensible mode on /etc/upgrade/Makefile_upgrade.inc .
Thomas E. Spanjaard [Thu, 1 May 2008 19:44:37 +0000 (19:44 +0000)]
Set a sensible mode on /etc/upgrade/Makefile_upgrade.inc .

12 years agoRegenerate the pciconf(8) database from the following files:
Sascha Wildner [Thu, 1 May 2008 18:02:45 +0000 (18:02 +0000)]
Regenerate the pciconf(8) database from the following files:

Hart:    Jan 22, 2008 (version 671)
Boemler: May  1, 2008
Mares:   Mar  1, 2008

12 years agoAdd FreeBSD 7.1 (which is already referenced in cmx.4).
Sascha Wildner [Thu, 1 May 2008 13:04:51 +0000 (13:04 +0000)]
Add FreeBSD 7.1 (which is already referenced in cmx.4).

12 years agoMention that BCM430[69] chips do not work properly on channel 1/2/3
Sepherosa Ziehau [Thu, 1 May 2008 12:34:06 +0000 (12:34 +0000)]
Mention that BCM430[69] chips do not work properly on channel 1/2/3

12 years agoSync with FreeBSD (adds OpenBSD 4.3).
Sascha Wildner [Thu, 1 May 2008 12:27:18 +0000 (12:27 +0000)]
Sync with FreeBSD (adds OpenBSD 4.3).

12 years agoktr the end of various ipiq sending operation.
Sepherosa Ziehau [Thu, 1 May 2008 09:37:48 +0000 (09:37 +0000)]
ktr the end of various ipiq sending operation.

12 years agoRemove obsolete keywords: conflicts, controller, disk, tape
Sascha Wildner [Thu, 1 May 2008 09:24:42 +0000 (09:24 +0000)]
Remove obsolete keywords: conflicts, controller, disk, tape

Remove obsolete option: -n

12 years agoktr cpu_send_ipiq
Sepherosa Ziehau [Thu, 1 May 2008 02:11:39 +0000 (02:11 +0000)]
ktr cpu_send_ipiq

12 years ago- Promote em(4) polling begin/end ktr into polling(4)
Sepherosa Ziehau [Thu, 1 May 2008 02:03:28 +0000 (02:03 +0000)]
- Promote em(4) polling begin/end ktr into polling(4)
- Add crit section around if_poll

12 years agoEnforce proper sequencing of world and kernel targets.
Simon Schubert [Wed, 30 Apr 2008 23:05:33 +0000 (23:05 +0000)]
Enforce proper sequencing of world and kernel targets.

.ORDER: does *not* take an arbitrary list of targets of which all pairs
are supposed to be built in their specified sequence,
instead it specifies which adjacent pairs need to be built in sequence.
As a result, given a sequence "buildworld buildkernel quickkernel" and
the make targets "buildworld" and "quickkernel", make would still
parallelize the build of these targets.

Additionally, introduce quickworld to the sequencing.

12 years ago* Mention that bmake must be used for pkgsrc.
Sascha Wildner [Wed, 30 Apr 2008 21:45:28 +0000 (21:45 +0000)]
* Mention that bmake must be used for pkgsrc.

* Add references to pkg_radd(1) and pkg_search(1).

* Adjust documentation URL (taken from NetBSD).

12 years agoHave vfsync() call buf_checkwrite() on buffers with bioops to determine
Matthew Dillon [Wed, 30 Apr 2008 17:34:11 +0000 (17:34 +0000)]
Have vfsync() call buf_checkwrite() on buffers with bioops to determine
whether it is ok to write out a buffer or not.  Used by HAMMER to prevent
specfs from syncing out meta-data at the wrong time.

12 years agoAdd pmap_unmapdev() calls to detach functions for drivers which used
Matthew Dillon [Wed, 30 Apr 2008 17:28:17 +0000 (17:28 +0000)]
Add pmap_unmapdev() calls to detach functions for drivers which used
pmap_mapdev(), when possible.

12 years agoCothreads do not have a globaldata context and cannot handle signals
Matthew Dillon [Wed, 30 Apr 2008 16:59:45 +0000 (16:59 +0000)]
Cothreads do not have a globaldata context and cannot handle signals
which require one.  Add SIGTERM, SIGWINCH, and SIGUSR2 to the list of
signals cothreads mask.

Reported-by: Rumko <rumcic@gmail.com>
12 years agoAdd tunable for each_burst.
Sepherosa Ziehau [Wed, 30 Apr 2008 09:30:59 +0000 (09:30 +0000)]
Add tunable for each_burst.

12 years agoAdd KTR_TESTLOG to LINT.
Sascha Wildner [Wed, 30 Apr 2008 09:15:08 +0000 (09:15 +0000)]
Add KTR_TESTLOG to LINT.

Mention KTR_SERIALIZER & KTR_TESTLOG in ktr(4).

12 years agoChange the SMP wakeup() code to send an IPI to the target cpu's in parallel
Matthew Dillon [Wed, 30 Apr 2008 04:19:57 +0000 (04:19 +0000)]
Change the SMP wakeup() code to send an IPI to the target cpu's in parallel
instead of chaining the message.  This fixes a stack depth assertion in the
IPI processing code that Sephe was hitting in his network work.  The target
cpu _wakeup() code no longer recurses the IPI subsystem.

Reported-by: "Sepherosa Ziehau" <sepherosa@gmail.com>
12 years agoAdd some assertions when a buffer is reused
Matthew Dillon [Wed, 30 Apr 2008 04:11:44 +0000 (04:11 +0000)]
Add some assertions when a buffer is reused

12 years agoThe driver was improperly using kmem_free() instead of pmap_unmapdev(),
Matthew Dillon [Wed, 30 Apr 2008 04:05:21 +0000 (04:05 +0000)]
The driver was improperly using kmem_free() instead of pmap_unmapdev(),
and hitting a recently added assertion.  Use the proper call.

Reported-by: Rumko <rumcic@gmail.com>
12 years agoKTR various serializer operation
Sepherosa Ziehau [Tue, 29 Apr 2008 16:00:12 +0000 (16:00 +0000)]
KTR various serializer operation

12 years agoThree int arguments are used in IPIQ_STRING
Sepherosa Ziehau [Tue, 29 Apr 2008 14:26:09 +0000 (14:26 +0000)]
Three int arguments are used in IPIQ_STRING

12 years agoRemove unneeded argument.
Sascha Wildner [Tue, 29 Apr 2008 11:59:08 +0000 (11:59 +0000)]
Remove unneeded argument.

12 years agoUse 'MS-DOS' and not 'MS DOS' or 'MSDOS'.
Sascha Wildner [Tue, 29 Apr 2008 09:33:41 +0000 (09:33 +0000)]
Use 'MS-DOS' and not 'MS DOS' or 'MSDOS'.

12 years agoFix section ref.
Sascha Wildner [Tue, 29 Apr 2008 09:02:45 +0000 (09:02 +0000)]
Fix section ref.

12 years agoHAMMER 39B/Many: Cleanup pass
Matthew Dillon [Tue, 29 Apr 2008 04:43:08 +0000 (04:43 +0000)]
HAMMER 39B/Many: Cleanup pass

* Correct an issue where an inode flush was not being immediately picked
  up by the flusher, causing frontend I/O to stall.