Sascha Wildner [Sat, 20 Mar 2010 10:08:54 +0000 (11:08 +0100)]
Put 4 more kernel files under -Werror (fix x86_64 warnings).
Sascha Wildner [Sat, 20 Mar 2010 10:08:31 +0000 (11:08 +0100)]
Fix LINT kernel build.
Samuel J. Greear [Fri, 19 Mar 2010 17:03:56 +0000 (11:03 -0600)]
kernel - Include headers declaring vm_page_t in lwbuf headers
This commit unbreaks buildworld on i386.
Reported-by: Jan Lentfer
Sascha Wildner [Fri, 19 Mar 2010 18:15:42 +0000 (19:15 +0100)]
lwbuf.9: Add MLINKS and perform some cleanup.
Samuel J. Greear [Thu, 18 Mar 2010 19:05:16 +0000 (13:05 -0600)]
kernel - lwbuf SLIST safety
* Add critical sections around modifications to lwbuf SLIST in globaldata
* Cache globaldata pointer to reduce generated code
Spotted-by: Venkatesh Srinivas
Samuel J. Greear [Tue, 9 Mar 2010 09:24:55 +0000 (02:24 -0700)]
kernel - Introduce lightweight buffers
* Summary:
The lightweight buffer (lwbuf) subsystem is effectively a reimplementation
of the sfbuf (sendfile buffers) implementation. It was designed to be
lighter weight than the sfbuf implementation when possible, on x86_64
we use the DMAP and the implementation is -very- simple. It was also
designed to be more SMP friendly.
* Replace all consumption of sfbuf with lwbuf
* Refactor sfbuf to act as an external refcount mechanism for sendfile(2),
this will probably go away eventually as well.
Constantine A. Murenin [Thu, 18 Mar 2010 22:19:56 +0000 (18:19 -0400)]
wbsio(4): be less verbose if the device doesn't look like a wbsio device
Constantine A. Murenin [Thu, 18 Mar 2010 21:57:39 +0000 (17:57 -0400)]
wbsio(4): be more verbose for unsupported devices if loaded as a module or if bootverbose
Constantine A. Murenin [Thu, 18 Mar 2010 19:34:54 +0000 (15:34 -0400)]
wbsio(4) && lm(4): add support for `kldload lm.ko wbsio.ko`
Matthew Dillon [Thu, 18 Mar 2010 18:46:16 +0000 (11:46 -0700)]
kernel - devfs - Fix memory leak in devfs_destroy_device_node()
* M_TEMP is used by devfs to allocate temporary PATH_MAX buffers
* devfs had a memory leak in a particular failure case, fix it.
This is likely the reported problem.
Reported-by: John Marino <john@marino.st>
Constantine A. Murenin [Thu, 18 Mar 2010 09:03:11 +0000 (05:03 -0400)]
aps(4): make the aps module, aps.ko, work as well as the in-kernel device
Constantine A. Murenin [Mon, 15 Mar 2010 17:43:31 +0000 (13:43 -0400)]
wbsio(4): support W83667HG (0xa5); its hw mon is already supported by lm(4) as W83627DHG (0xc1)
Alex Hornung [Wed, 17 Mar 2010 14:20:15 +0000 (14:20 +0000)]
kern_{get,set}sockopt - invalid value check
* Check for sopt_val != NULL && sopt_valsize == 0 and return EINVAL in
this case, or else an assert will be triggered and the kernel will
panic.
Dragonfly-bug: http://bugs.dragonflybsd.org/issue1696
Matthew Dillon [Wed, 17 Mar 2010 03:52:20 +0000 (20:52 -0700)]
HAMMER VFS - Cleanup recovery kprintfs a bit
* Minor formatting cleanups.
Matthew Dillon [Wed, 17 Mar 2010 02:52:13 +0000 (19:52 -0700)]
vmstat - update for changes in nch structure
* Adjust for changes in the namei / path lookup statistics structure
Alex Hornung [Tue, 16 Mar 2010 22:22:46 +0000 (22:22 +0000)]
linux emu - fix some signalling mess
* This fixes sigaction in the linux emu, which broke times03 and
possibly also part of java (and who knows, maybe flash?)
Matthew Dillon [Tue, 16 Mar 2010 21:30:53 +0000 (14:30 -0700)]
Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
Matthew Dillon [Tue, 16 Mar 2010 21:29:14 +0000 (14:29 -0700)]
kernel - Fix kernel memory leak in devfs disk_probe()
* kfree() the old slices structure after installing a new one.
* Do a minor refactoring of dsgone().
* Possibly fixes a kernel memory leak generated by kde's CD probing.
Reported-by: Pierre Abbat <phma@phma.optus.nu>
Alex Hornung [Tue, 16 Mar 2010 21:24:07 +0000 (21:24 +0000)]
linux emu - fix exit status on exit_group
* Previously, the exit status was set incorrectly; the exit signal was
being set instead with the supposed exit status.
Matthew Dillon [Tue, 16 Mar 2010 19:17:45 +0000 (12:17 -0700)]
systat - break out read and write I/O activity, change namecache statistics
* Add additional rows to break the I/O statistics into separate read and
write stats (something I've always wanted systat to do).
* Rework the namecache statistics. Primarily show whole path lookups
stats instead of component lookups, and then also print the average
number of components.
Matthew Dillon [Tue, 16 Mar 2010 19:15:54 +0000 (12:15 -0700)]
kernel - rework struct nchstats for systat
* Remove ncs_long, ncs_pass2 and ncs_2passes and replace with
ncs_longhits, ncs_longmiss, and ncs_unused (so the structure
size does not change).
The new longhits/longmiss statistics are for whole path
lookups.
Matthew Dillon [Tue, 16 Mar 2010 19:14:02 +0000 (12:14 -0700)]
libdevstat - Add compute_stats_read() and compute_stats_write()
* Add versions of compute_stats() which separate out the read and
write activity.
Matthew Dillon [Tue, 16 Mar 2010 17:39:01 +0000 (10:39 -0700)]
HAMMER VFS - Fix an edge case in hammer_inode_waitreclaims()
* Detached inodes can build up in the flusher, causing iqueued/reclaiming
to increase. hammer_inode_waitreclaims() is designed to slow down
the processes responsible (typically a rm -rf) to prevent the backlog
from blowing out kernel memory.
* hammer_inode_waitreclaims() had a bug where a new pid entry was not
being placed in the hash table such that it would be properly found
by the chaining. Fix this case.
* This fixes an issue where a simultanious rm -rf and (typically) two or
more directory iterations via ls or find over hundreds of thousands or
millions of files could cause the number of detached inodes to increase
in an unbounded fashion.
Aggelos Economopoulos [Tue, 16 Mar 2010 13:13:25 +0000 (15:13 +0200)]
pmap: Warning -> Debug
This message does not concern the system administrator,
try not to get them worried for no reason.
Alex Hornung [Tue, 16 Mar 2010 12:24:45 +0000 (12:24 +0000)]
linux emu - fix bug in futex
* when resetting the fault handler in futex_orl - futex_tail, reset ecx
to the right value.
Alex Hornung [Tue, 16 Mar 2010 12:46:37 +0000 (12:46 +0000)]
kern_synch - unbreak UP build
* recent work on allowing volatile idents for tsleep and wakeup broke UP
build.
Alex Hornung [Tue, 16 Mar 2010 11:29:21 +0000 (11:29 +0000)]
linux emu - fix MP bug related to TLS
* all TLS functions were passing out or assuming the wrong value to load
into gs. As a matter of fact, this should be the same for SMP and UP,
but just in case keep the old code in #if 0's.
Alex Hornung [Tue, 16 Mar 2010 09:02:47 +0000 (09:02 +0000)]
linprocfs - fix multi-CPU stat & cpuinfo
* Add multiprocessor support to /proc/stat and /proc/cpuinfo, as the
sysconf() function uses these to find the total number of CPUs in the
system.
Matthew Dillon [Tue, 16 Mar 2010 08:57:28 +0000 (01:57 -0700)]
build - Fix ordering to avoid -j race
* The mkdir -p must complete prior to any source file copies.
Matthew Dillon [Mon, 15 Mar 2010 20:12:23 +0000 (13:12 -0700)]
kernel - change tsleep related idents to const volatile void *
* There's no reason why pointers to const or volatiles can't be passed
as the ident, and HAMMER does that now in some cases, so adjust the
prototypes for *sleep() and *wakeup() to accomodate them.
* Also make thread->td_wchan const volatile void *
Alex Hornung [Mon, 15 Mar 2010 19:08:42 +0000 (19:08 +0000)]
linux emu - iron out bugs
* mmap: make sure that PROT_READ is not set if PROT_NONE is specified.
* sysinfo: Updata sysinfo to the new structure used since linux
2.3.something.
Matthew Dillon [Mon, 15 Mar 2010 17:50:16 +0000 (10:50 -0700)]
Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
Matthew Dillon [Mon, 15 Mar 2010 17:49:03 +0000 (10:49 -0700)]
HAMMER VFS - Hack cursor iterator when locked cursor moved to parent
* A cursor is also moved to its parent normally when deleting the last
element in a node and that node is then destroyed.
Reported-by: YONETANI Tomokazu <qhwt+dfly@les.ath.cx>
Matthew Dillon [Mon, 15 Mar 2010 09:07:23 +0000 (02:07 -0700)]
HAMMER VFS - Major retooling of the refcount mechanics, and fix a deadlock
* Add an interlock to hammer_lock->refs which is independent of
hammer_lock->lockval.
* Retool the refcount mechanics to integrate the interlock on 0->1 and
1->0 transitions.
In addition implement a check bit to deal with serialization races
between threads which forces all threads to interlock. This deals
with the case where one thread bumps the refcount (lock->refs) but
is unable to immediateliy acquire the interlock. Other threads doing
the same thing will race and lock->refs will be bumped far higher
than 1. The check bit is set on the 0->1 transition and enforces
all threads to serialize until one (usually the first to acquire the
lock) is able to dispose of the check condition.
The transition interlocks are used to do I/O loading and validation
on the 0->N transition and I/O unloading and invalidation on the 1->0
transition.
* The new integrated mechanics also simplify hammer_io's handling of
B_LOCKED slightly and properly interlocks changes in disposition for
the related buffer cache buffer against refcount transitions.
* The new integrated refcount/interlock is also more optimal as the
combined operation can be done in a single atomic_cmpset_int() call,
and fully MPSAFE. Even though other major portions of HAMMER are not
yet MPSAFE getting this particular bit dealt with will ease MP work
later on.
* Retool the volume, buffer, and node referencing code to use the new
mechanics. This fixes a deadlock. These routines were previously
acquiring an exclusive lock instead of an interlock. The exclusive
lock could combine with shared locks held by the same thread to create
a deadlock situation against other threads.
Use of the interlock fixes this particular deadlock.
Reported-by: Francois Tigeot <ftigeot@wolfpond.org> (deadlock report)
Sascha Wildner [Sun, 14 Mar 2010 12:48:50 +0000 (13:48 +0100)]
fetch.9: Minor fixes.
Alex Hornung [Sun, 14 Mar 2010 09:32:00 +0000 (09:32 +0000)]
fetch.9 - document casuword
Alex Hornung [Sun, 14 Mar 2010 09:06:30 +0000 (09:06 +0000)]
nlookup.9 - document nlookup_init_root
Alex Hornung [Sun, 14 Mar 2010 08:57:36 +0000 (08:57 +0000)]
vfs_synth - rewrite
* Rewrite the whole vfs_synth mess to be compatible with devfs. Now we
create a synthetic mountpoint and mount devfs on it. We then just
nlookup() whatever device we need on that mountpoint.
* This also fixes vinum rootmount. To use vinum as a root,
vfs.root.mountfrom in /boot/loader.conf has to be set to
"<fs>:vinum/vinumroot" where <fs> can be ufs or hammer.
Reported-by: Rumko, tuxillo
Dragonfly-bug: http://bugs.dragonflybsd.org/issue1565
Alex Hornung [Sun, 14 Mar 2010 08:27:32 +0000 (08:27 +0000)]
nlookup - introduce nlookup_init_root
* nlookup_init_root is similar to nlookup_init_raw, but does not assume
rootnch is set already, but rather has one more parameter which
specifies the root nch.
Sascha Wildner [Sun, 14 Mar 2010 12:11:40 +0000 (13:11 +0100)]
hammer.8: Fix list.
Sascha Wildner [Sun, 14 Mar 2010 11:55:11 +0000 (12:55 +0100)]
Adjust some more to the recent groff 1.20.1 import.
* Dx is now a built in macro, so remove our local definition. But the
version supplied with groff still doesn't work correctly due to a
missing register declaration in doc-common. Fix that locally for now
(patch sent upstream).
* Sync various definitions (standards, operating systems) with doc-common
and doc-syms, i.e. remove our local definitions where they are part of
groff now.
Matthew Dillon [Sun, 14 Mar 2010 05:16:38 +0000 (21:16 -0800)]
HAMMER VFS - Hack cursor iterator when unlocked cursor moved to parent
* It is possible to reverse-index a cursor while it is unlocked due to
a node deletion moving cursors on that node to the parent, and a
subsequent insertion then inserting new elements between the cursor's
current position and its expected iteration range.
* Detect the case with a new flag (hack!) HAMMER_CURSOR_ITERATE_CHECK
and just iterate past the elements outside the iteration range in
this case.
Reported-by: YONETANI Tomokazu <qhwt+dfly@les.ath.cx>
Sascha Wildner [Sun, 14 Mar 2010 01:32:47 +0000 (02:32 +0100)]
mdoc: Add NetBSD 6.0 (used in wbsio.4).
Sascha Wildner [Sun, 14 Mar 2010 01:31:13 +0000 (02:31 +0100)]
Actually hook powernow.4 into the build.
Alex Hornung [Sat, 13 Mar 2010 15:39:37 +0000 (15:39 +0000)]
linprocfs - Introduce /proc/mounts
* Introudce the /proc/mounts entry to satisfy some installers, and df.
* NOTE: if you intend to chroot into the linux base, you'll have to
change your /compat/linux/etc/mtab symlink to point to /proc/mounts
instead. Also note that the paths are not relative to the linux
chroot.
Reported-by: Sascha Wildner
Sascha Wildner [Sat, 13 Mar 2010 12:58:36 +0000 (13:58 +0100)]
Fix LINT build.
Alex Hornung [Fri, 12 Mar 2010 23:08:40 +0000 (23:08 +0000)]
linux emulation - Major update
* Major update to all components of the linux emulation layer
(linuxulator) and linprocfs.
* Many old system calls have been overhauled and new ones added.
* Tested with java 1.6.18, apache tomcat 6, opera, Acrobat Reader, ...
* NOTE: Flash doesn't work yet, and I haven't been able to figure out
why. I'll continue my work on the linuxulator part time now, and
hopefully eventually fix the issue(s).
Some parts of this have been taken from FreeBSD and NetBSD.
Overall the new stuff isn't as well organized as it should be; most of
the new defines are in linux.h as I didn't bother splitting it up into
independent headers.
Once we plan on porting the linuxulator to amd64, this has to be taken
care of, so especially machine independent bits are broken out of the
machine dependent sys/emulation/linux/i386.
Alex Hornung [Fri, 12 Mar 2010 23:07:27 +0000 (23:07 +0000)]
procfs - Use newly introduced textnch
* Use the newly introduced p_textnch instead of p_textvp to find the
path to the .text file for each proc entry in /proc.
Alex Hornung [Fri, 12 Mar 2010 22:59:30 +0000 (22:59 +0000)]
linux emu - peripheral changes
* These are peripheral changes to prepare for the import of the updated
linuxulator:
* hooks (eventhandler) for process creation and process exit.
* splitting up of sys_kevent into sys_kevent + kern_kevent, including
generic copyiin and copyout functions.
Obtained-from: FreeBSD
* adding a p_textnch to store the namecache handle for the .text file.
* minor changes to sysv_sem and sysv_shm to support linux-specific
magic.
* bring in casuword (compare and set userland word)
Obtained-from: FreeBSD
* add a hook for userret from syscall2
Inspired-by: NetBSD
Matthew Dillon [Fri, 12 Mar 2010 23:07:58 +0000 (15:07 -0800)]
kernel - AHCI - enable AHCI device initiated power management
* Add hw.ahci sysctls to allow the power management state to be set and
monitored.
* Issue device features command when aggressive power management is
enabled to turn on device-initiated power management, and turn it off
when power management is set to none.
* Currently does not try do power management for devices behind a
PM.
Submitted-by: Johannes Hofmann <johannes.hofmann@gmx.de>
Matthew Dillon [Fri, 12 Mar 2010 22:43:44 +0000 (14:43 -0800)]
fstat - Fix path construction for "wd".
* Fix path construction for "wd", the wrong mount pointer was being used.
Reported-by: Alex Hornung <ahornung@gmail.com>
Matthew Dillon [Wed, 10 Mar 2010 23:56:09 +0000 (15:56 -0800)]
kernel - fix procfs vm_map scan.
* procfs was holding a vm_map lock during a uiomove, which can result
in a recursive lock panic on the vm_map.
* since we must now unlock the map during the uiomove use a trick with
vm_map->hint to detect if the current entry has been ripped out from
under us and issue a lookup to reacquire our position in the scan.
Reported-by: "Alex Hornung" <ahornung@gmail.com>
Sascha Wildner [Tue, 9 Mar 2010 08:28:58 +0000 (09:28 +0100)]
Sync zoneinfo database with tzdata2010e from elsie.
asia: 8.54 -> 8.55
Fixes a bug with the rules for Bangladesh introduced in 8.54.
Samuel J. Greear [Mon, 8 Mar 2010 18:27:23 +0000 (11:27 -0700)]
kernel - Restore ability to thaw checkpoints
* Catch up with changes to imgact_elf.c
Sascha Wildner [Mon, 8 Mar 2010 18:40:55 +0000 (19:40 +0100)]
Sync zoneinfo database with tzdata2010d from elsie.
asia: 8.51 -> 8.54
australasia: 8.15 -> 8.16
southamerica: 8.41 -> 8.43
* Adjust start and end of Bangladesh DST.
* Fiji ends DST about a month early.
* Samoa DST postponed to 2010.
* Chile exceptionally extends DST to April 3 this year due to the earthquake.
Constantine A. Murenin [Mon, 8 Mar 2010 12:34:05 +0000 (07:34 -0500)]
wbsio(4): don't reuse a child that has already been attached
Constantine A. Murenin [Mon, 8 Mar 2010 10:26:58 +0000 (05:26 -0500)]
wbsio(4): convert to Newbus and DragonFly -- welcome wbsio(4)!
* New wbsio(4) driver for Winbond Super I/O attachment of lm(4) on any port.
Constantine A. Murenin [Sun, 21 Feb 2010 09:36:20 +0000 (04:36 -0500)]
wbsio(4): raw wbsio.c#rev1.1 and wbsio.4#rev1.1 from NetBSD
Sascha Wildner [Mon, 8 Mar 2010 10:07:46 +0000 (11:07 +0100)]
Remove <sys/msfbuf.h> per 'make upgrade'.
Sascha Wildner [Sun, 7 Mar 2010 08:04:09 +0000 (09:04 +0100)]
Remove WARNS?=6 from two Makefiles where it is not needed.
WARNS is 6 by default in bin/, games/, sbin/, usr.bin/ and usr.sbin/
(per Makefile.inc) and only needs to be specified explicitly there
for utilities which need WARNS < 6.
YONETANI Tomokazu [Sun, 7 Mar 2010 04:24:45 +0000 (13:24 +0900)]
mptable - raise WARNS to 6
YONETANI Tomokazu [Sun, 7 Mar 2010 03:47:49 +0000 (12:47 +0900)]
mptable - factor out the MP_SIG lookup code
YONETANI Tomokazu [Sun, 7 Mar 2010 04:46:08 +0000 (13:46 +0900)]
mptable - prepare to raise WARNS
- do not declare extern optreset, which is not used.
- constify lookup tables
- fix printf format strings
YONETANI Tomokazu [Sun, 7 Mar 2010 03:08:24 +0000 (12:08 +0900)]
mptable - use fixed-size integers in the structures; fixes x86_64
Sascha Wildner [Sat, 6 Mar 2010 14:24:03 +0000 (15:24 +0100)]
mq_receive.2: Add missing space.
Sascha Wildner [Sat, 6 Mar 2010 09:03:44 +0000 (10:03 +0100)]
taskqueue.9: Do some mdoc cleanup & add missing MLINKS.
Samuel J. Greear [Fri, 5 Mar 2010 18:07:43 +0000 (11:07 -0700)]
kernel - Remove msf buffer code
* MSF Buffers are no longer consumed by any kernel subsystem,
remove them and free up 32MB of KVA
Michael Neumann [Fri, 5 Mar 2010 23:20:12 +0000 (00:20 +0100)]
pci_alloc_msix: Fail if no MSI-X vectors available
Otherwise bootverbose could lead to a kernel crash.
This commit also lets the igb driver correctly fall-back
to non MSI-X code. MSI-X is currently not supported by
DragonFly.
Michael Neumann [Fri, 5 Mar 2010 22:30:03 +0000 (23:30 +0100)]
Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
Michael Neumann [Fri, 5 Mar 2010 22:26:48 +0000 (23:26 +0100)]
Unbreak buildkernel / mxge(4)
Partially revert commit
0a702a628e2af43ec0cb538349278b4d98993572.
Ulrich Spörlein [Sat, 6 Feb 2010 10:19:26 +0000 (11:19 +0100)]
fortune(6): fix more typos, whitespace, remove dupes
Fixes are courtesy of FreeBSD.
Michael Neumann [Fri, 5 Mar 2010 18:09:41 +0000 (19:09 +0100)]
Merge branch 'master' of git://git.dragonflybsd.org/dragonfly
Michael Neumann [Fri, 5 Mar 2010 18:07:53 +0000 (19:07 +0100)]
e1000 - Make igb driver compile on DragonFly
The driver itself does not work. The devices successfully
attach, but when trying to set an IP address it hangs.
More work needs to go into this driver.
Matthew Dillon [Fri, 5 Mar 2010 00:06:53 +0000 (16:06 -0800)]
HAMMER VFS - Ensure sufficient free memory is available before large allocation
* The HAMMER rebalancing code can be a heavy user of kernel memory when
collecting B-Tree nodes to rebalance.
Call the new vm_wait_nominal() function before allocating said memory
in an attempt to avoid VM/VFS deadlocks when memory is low.
Reported-by: Francois Tigeot <ftigeot@wolfpond.org>
Matthew Dillon [Fri, 5 Mar 2010 00:05:38 +0000 (16:05 -0800)]
kernel - vm - add vm_wait_nominal()
* Add vm_wait_nominal(), a function which activates the pageout daemon
if necessary and waits for sufficient memory to become free for
a kernel heavy user.
Sascha Wildner [Thu, 4 Mar 2010 17:25:32 +0000 (18:25 +0100)]
compilers.conf.5: Clarify some more.
Sascha Wildner [Thu, 4 Mar 2010 07:47:10 +0000 (08:47 +0100)]
Add device sg to LINT.
Sascha Wildner [Thu, 4 Mar 2010 06:00:42 +0000 (07:00 +0100)]
Fix typos in manual pages and user visible messages.
Sascha Wildner [Thu, 4 Mar 2010 05:01:02 +0000 (06:01 +0100)]
Sort the SEE ALSO sections in some manual pages.
Matthew Dillon [Thu, 4 Mar 2010 01:53:37 +0000 (17:53 -0800)]
kernel - pmap (i386) - Reduce kmem use for foreign pmap mapping
* We've been having problems running out of KVA on i386 systems due to
numerous reasons. KVA use by the kernel is just too tight.
* Reserve space for foreign pmap page table mappings on a cpu-by-cpu basis
instead of for SMP_MAXCPU. This reduces KVM use from 68MB to (ncpu*4MB).
Use the APT entry for cpu0 and use kmem_alloc_nofault() for the APs.
This frees up 52MB of KVA which doesn't sound like a lot but actually
is.
* Add an alignment argument to kmem_alloc_nofault() and vm_map_find().
* vm_map_findspace() already had an alignment argument, but adjust the
value passed to be at least PAGE_SIZE (this has no operational effect
but is more correct).
Matthew Dillon [Wed, 3 Mar 2010 07:15:27 +0000 (23:15 -0800)]
VN - Remove use of IO_DIRECT, Improve lock performance for reads
* Remove the use of IO_DIRECT. This just doesn't work very well,
particularly when the device backing the VN has a different logical
block size than the device using VN.
This will result in heavier use of the buffer cache and more
(temporarily) duplicated data, but also has much better performance.
* Use LK_SHARED for VOP_READ()s instead of LK_EXCLUSIVE, which allows
concurrent reads to be issued.
Reported-by: Vincent Stemen <vince.dragonfly@hightek.org>
Matthew Dillon [Wed, 3 Mar 2010 06:50:10 +0000 (22:50 -0800)]
HAMMER VFS - Do a better job with IO_DIRECT
* IO_DIRECT is rather nasty, only actually honor it if the write() operation
fits the buffer.
Reported-by: Vincent Stemen <vince.dragonfly@hightek.org>
Matthew Dillon [Wed, 3 Mar 2010 01:29:14 +0000 (17:29 -0800)]
HAMMER VFS - Fix assertion in hammer_btree_mirror_propagate()
* hammer_btree_mirror_propagate() asserts it is on an internal node but
recovery operations can now place us on a leaf, so just loop if we
are on a leaf and remove the assertion.
Matthew Dillon [Tue, 2 Mar 2010 23:58:07 +0000 (15:58 -0800)]
cpdup - Add -VV to ignore mtime
* The cpdup -V option verifies the contents of the files even if the
mtime is the same, but also (currently) recopies the file without
bothering to verify the contents if the mtime is different, even if
the contents is the same.
* Add an extension, -VV, which verifies the contents of the file and
ignores mtime entirely. A copy is only made if the ownerchip,
flags, modes, or content differs.
Matthew Dillon [Tue, 2 Mar 2010 22:36:40 +0000 (14:36 -0800)]
HAMMER VFS - Correct seriuos bug in hammer rebalancing code
* Correct a serious bug in the hammer rebalancing code which can cause
incremental mirrors to lose track of records, resulting in missing records
on the slave (missing files, missing directory entries, or files
which improperly contain data holes).
The rebalancing code needs to update the mirror_tid chain when moving
elements from one node to another. It updated the parent node but failed
to update the internal element linkage pointing to the child.
This can cause incremental mirroring operations to fail to copy some B-Tree
records.
* Correct a possible issue between the rebalancing code and B-Tree
iterations during mirror-write operations.
When the rebalancer moves an element from one child node to another and
a cursor exists which is pointing at the parent internal node, the
cursor will now be mispositioned because elements which were to the
right of the cursor are now to the left of the cursor.
Adjust hammer_cursor_moved_element() to properly move the cursor and
print a debug message to the console so the code path can be tested.
* These bugs are serious but also very rare. There is a good chance that
your slaves are just fine, but we recommend validating their contents
anyway.
* PROCEDURE FOR FIXING BROKEN SLAVES: With a little help from the sysop
these problems are self-correcting with the new kernel code in place.
First make sure both the master and slave are running a kernel with
the mirroring fix.
Second, verify the slave matches the master (taking into account
changes being made to live files). Probably the easiest way to do
this is as follows (make sure you push into the softlink, not cpdup
the softlink itself):
cpdup -v -V /pfs/master/. /pfs/slave/.
This should get you a list of missing files and directories. For
each missing file or directory do a chmod, chown, or chflags on the
master, then change it back. This will propagate the updated inode
to the slave So for example:
chflags nodump file
chflags dump file
If file data is corrupt on the mirroring slave you need to recopy the
file on the master, which can be done with dd conv=notrunc:
dd if=file of=file bs=32k conv=notrunc
These actions will cause the master to re-mirror the related files and
data to the slave.
Reported-by: Stathis Kamperis <beket@crater.dragonflybsd.org>
Matthew Dillon [Tue, 2 Mar 2010 22:34:40 +0000 (14:34 -0800)]
HAMMER Utility - Enhance the mirroring and show code
* mirror-read will now run the histogram just like mirror-stream does.
* improve versbose output when doing a mirror-read or mirror-stream.
* hammer show now validates the mirror_tid in the B-Tree and produces
a 'B' indication with the 'M' flag if it finds a bad mirror_tid
chaining.
Sascha Wildner [Tue, 2 Mar 2010 15:42:36 +0000 (16:42 +0100)]
libc/stdtime: Sync localtime.c with tzcode2010c from elsie.
More core dump avoidance work.
Sascha Wildner [Tue, 2 Mar 2010 15:41:18 +0000 (16:41 +0100)]
Sync zoneinfo database with tzdata2010c from elsie.
southamerica: 8.40 -> 8.41
Paraguay changes DST schedule, starting in April now.
Sascha Wildner [Tue, 2 Mar 2010 15:09:28 +0000 (16:09 +0100)]
Regenerate the pciconf(8) database
...from the following files:
Hart: Jan 22, 2008 (version 671)
Boemler: Mar 1, 2010
Mares: Mar 1, 2010
Sascha Wildner [Tue, 2 Mar 2010 11:16:02 +0000 (12:16 +0100)]
libc/locale: Use _getprogname().
Sascha Wildner [Tue, 2 Mar 2010 11:07:47 +0000 (12:07 +0100)]
libc/citrus: Forward declare some structs to fix some warnings.
Alex Hornung [Tue, 2 Mar 2010 07:45:20 +0000 (07:45 +0000)]
talk - unbreak for unix98 ptys
* Unbreak talk, which relied on seeing old-style ptys. When I introduced
the unix98 ptys.
* This assumption would not work anymore, since the
last slash is not the slash after /dev, but rather the one after
/dev/pts. Later opening 0 instead of pts/0 would give an error.
Reported-by: Peter Avalos, Matt Dillon
Matthew Dillon [Tue, 2 Mar 2010 00:12:26 +0000 (16:12 -0800)]
kernel - cleanup some unnecessary casts
* Adjust disk_msg_core() and friends to not make unnecessasry casts
when playing with LWKT messages.
* In disk_msg_send_sync() call lwkt_waitmsg() instead of lwkt_waitport(),
which cleans up the code flow a bit.
Matthew Dillon [Tue, 2 Mar 2010 00:09:41 +0000 (16:09 -0800)]
kernel - Move grow_stack code in fault path to improve fault performance
* grow_stack() calls were being performed unconditionally during a
page fault. Shift the code over to vm_fault() and only run it if
the vm_map_lookup() call fails.
* Also take this opportunity to remove trapwrite() (added by Matt).
Submitted-by: Venkatesh Srinivas <me@endeavour.zapto.org>
Matthew Dillon [Tue, 2 Mar 2010 00:07:25 +0000 (16:07 -0800)]
kernel - VN - add missing disk_destroy() in module unload path
* The module unload was leaving the disk list corrupted. Add a missing
disk_destroy() call.
* Fixes certain bulk-build issues (apparently the bulk build tries to
unload and reload the VN driver at some point for reasons unknown).
Matthew Dillon [Mon, 1 Mar 2010 01:02:40 +0000 (17:02 -0800)]
tmpfs - Add support for setting the root uid/gid/mode for the tmpfs mount.
* Link uid/gid/mode setup from mount_tmpfs into the tmpfs VFS.
Submitted-by: Naoya Sugioka <naoya.sugioka@gmail.com>
Peter Avalos [Sun, 28 Feb 2010 04:04:54 +0000 (04:04 +0000)]
Merge branch 'master' of /repository/git/dragonfly
Sascha Wildner [Sun, 28 Feb 2010 02:51:03 +0000 (03:51 +0100)]
rc.conf.5: Remove bogus mdconfig(8) reference.
Peter Avalos [Sun, 28 Feb 2010 00:31:33 +0000 (00:31 +0000)]
Merge branch 'vendor/OPENSSL'
Peter Avalos [Sun, 28 Feb 2010 00:07:00 +0000 (00:07 +0000)]
Import OpenSSL-0.9.8m.
This new OpenSSL version is a security and bugfix release which
implements RFC5746 to address renegotiation vulnerabilities mentioned in
CVE-2009-3555. For a complete list of changes, please see the CHANGES
file.