netchild [Tue, 15 Jun 2010 08:58:16 +0000 (08:58 +0000)]
Add a periodic zfs scrub script.
Features:
- configurable amount of days between scrubs (default value or per pool)
- do not scrub directly after pool creation (respects the configured
number of days between scrubs)
- do not scrub if a scrub is in progress
- tells how to see the status of the scrub
- tells how many days since the last scrub if it skips the scrubbing
- warns if a non-existent pool is specified explicitely
(default: no pools specified -> all currently imported pools are
handled)
- runs late in the periodic run to not slow down the other periodic daily
scripts
avg [Tue, 15 Jun 2010 07:06:54 +0000 (07:06 +0000)]
sound/pcm: use non-const string as a value with SYSCTL_STRING
Although the sysctls are marked with CTLFLAG_RD and the values will stay
immutable, current sysctl implementation stores value pointer in
void* type, which means that const qualifier is discarded anyway
and some newer compilers complaint about that.
We can't use de-const trick in sysctl implementation, because in that
case we could miss an opposite situation where a const value is used
with CTLFLAG_RW sysctl.
rmacklem [Tue, 15 Jun 2010 00:25:04 +0000 (00:25 +0000)]
Add MODULE_DEPEND() macros to the experimental NFS client and
server so that the modules will load when kernels are built with
none of the NFS* configuration options specified. I believe this
resolves the problems reported by PR kern/144458 and the email on
freebsd-stable@ posted by Dmitry Pryanishnikov on June 13.
ken [Mon, 14 Jun 2010 22:02:18 +0000 (22:02 +0000)]
For the target port groups structures, don't allocate the initial element.
This makes things easier for target implementations to calculate how many
elements they need to allocate.
tuexen [Mon, 14 Jun 2010 21:25:07 +0000 (21:25 +0000)]
* Fix a bug where the length of the ASCONF-ACK was calculated wrong due
to using an uninitialized variable.
* Fix a bug where a NULL pointer was dereferenced when interfaces
come and go at a high rate.
* Fix a bug where inps where not deregistered from iterators.
* Fix a race condition in freeing an association.
* Fix a refcount problem related to the iterator.
Each of the above bug results in a panic. It shows up when
interfaces come and go at a high rate.
pjd [Mon, 14 Jun 2010 21:18:58 +0000 (21:18 +0000)]
Remove macros that are not really needed. The idea was to have them in case
we grow more descriptors, but I'll reconsider readding them once we get there.
Passing (a = b) expression to FD_ISSET() is bad idea, as FD_ISSET() evaluates
its argument twice.
Found by: Coverity Prevent
CID: 5243
MFC after: 3 days
alc [Mon, 14 Jun 2010 19:54:19 +0000 (19:54 +0000)]
Eliminate checks for a page having a NULL object in vm_pageout_scan()
and vm_pageout_page_stats(). These checks were recently introduced by
the first page locking commit, r207410, but they are not needed. At
the same time, eliminate some redundant accesses to the page's object
field. (These accesses should have neen eliminated by r207410.)
Make the assertion in vm_page_flag_set() stricter. Specifically, only
managed pages should have PG_WRITEABLE set.
Add a comment documenting an assertion to vm_page_flag_clear().
It has long been the case that fictitious pages have their wire count
permanently set to one. Add comments to vm_page_wire() and
vm_page_unwire() documenting this. Add assertions to these functions
as well.
Update the comment describing vm_page_unwire(). Much of the old
comment had little to do with vm_page_unwire(), but a lot to do with
_vm_page_deactivate(). Move relevant parts of the old comment to
_vm_page_deactivate().
Only pages that belong to an object can be paged out. Therefore, it
is pointless for vm_page_unwire() to acquire the page queues lock and
enqueue such pages in one of the paging queues. Generally speaking,
such pages are immediately freed after the call to vm_page_unwire().
Previously, it was the call to vm_page_free() that reacquired the page
queues lock and removed these pages from the paging queues. Now, we
will never acquire the page queues lock for this case. (It is also
worth noting that since both vm_page_unwire() and vm_page_free()
occurred with the page locked, the page daemon never saw the page with
its object field set to NULL.)
Change the panic with vm_page_unwire() to provide a more precise message.
bschmidt [Mon, 14 Jun 2010 18:26:10 +0000 (18:26 +0000)]
Fix TX retry rate handling. tx->linkq is an index to a rate table
beginning with the highest available rate. Currently we always use
54m for the first retry no matter what AMRR has choosen. Fix this
by setting the index to the next lower rate.
bschmidt [Mon, 14 Jun 2010 08:24:00 +0000 (08:24 +0000)]
sc_lastrs is also used in case the sending station is not known, for
example in a split IBSS scenario. Therefore always assign sc_lastrs.
This removes a hack I committed in r206457.
mav [Mon, 14 Jun 2010 07:38:53 +0000 (07:38 +0000)]
Fix bug introduced in SVN rev 194985. When calling pic_assign_cpu()
for pre-bound IRQs during boot, submit there LAPIC ID, same as in other
places, not CPU ID.
ed [Mon, 14 Jun 2010 06:23:47 +0000 (06:23 +0000)]
Unbreak Clang on PowerPC.
It seems GCC 4.2.1 on PowerPC miscompiles Clang, causing it to crash
when building even simple Hello World applications. Switch back to -O1
for this architecture.
kientzle [Mon, 14 Jun 2010 02:56:45 +0000 (02:56 +0000)]
If the compressed data is larger than the uncompressed,
report the compression ratio as 0% instead of displaying
nonsense triggered by numeric overflow. This is common
when dealing with uncompressed files when the I/O blocking
causes there to be small transient differences in the
accounting.
thompsa [Mon, 14 Jun 2010 00:40:23 +0000 (00:40 +0000)]
- Because hostapd calls iv_key_set() before if_init(), make sure key_set
callback function will be executed, and that the key won't be deleted during
the init process.
- txmic and rxmic are written into the chip the same place regardless of
opmode.
- Make the hardware generate 802.11 sequence numbers.
jilles [Sun, 13 Jun 2010 17:04:42 +0000 (17:04 +0000)]
libedit: Add basic filename completion code from NetBSD.
This will be used to provide filename completion in sh(1).
Changes from the NetBSD code:
* wide character support disabled, as in the rest of libedit
* config.h and related portability stuff reduced/disabled, as in the rest
of libedit
imp [Sun, 13 Jun 2010 16:54:11 +0000 (16:54 +0000)]
style(9) fixes:
o make cmd scoped to the whole do_rules function, since it really is
scoped to the whole fucnion. Making it static was the wrong way to
fix referencing it outside of the block in which it was declared
(and conforms to the style of the rest of the file).
o remove a couple of meaningless blank lines
o properly wrap one line.
- All integrated peripherals drivers for Marvell ARM SoC, which are
currently in the FreeBSD source tree are reworked and adjusted so they
derive config data out of the device tree blob (instead of hard coded /
tabelarized values).
- Since the common FDT infrastrucutre (fdtbus, simplebus) is used we say
good by to obio / mbus drivers and numerous hard-coded config data.
Note that world needs to be built WITH_FDT for the affected platforms.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation.
raj [Sun, 13 Jun 2010 12:53:44 +0000 (12:53 +0000)]
Do not set WITH_FDT by default based on arch, as this does not work for
a bootstrap stage tool.
FDT-enabled platforms will have to specify WITH_FDT explicitly at buildworld
time for now until TBEMD is complete, which is going to provide means for such
arch based selection of build components.
ed [Sun, 13 Jun 2010 12:39:22 +0000 (12:39 +0000)]
Disable usage of posix_spawn() inside LLVM.
Even though it's nice to use posix_spawn() instead of manually using
fork()/exec(), it's better to disable this. FreeBSD 7 doesn't support
this interface. When enabled, we can't build tblgen, which prevents us
from building FreeBSD 9 on 7.
kaiw [Sun, 13 Jun 2010 10:58:50 +0000 (10:58 +0000)]
* Improve compatibility with existing application code by permitting the
use of `elf_getbase()` on non-archive members. This change is needed
for gcc LTO (-flto) to work properly.
* Style fix: paranthesize returned values.
* Document the current behaviour of `elf_getbase()`.
Tested by: gerald, Steve Kargl (original patch)
Obtained from: elftoolchain
MFC after: 3 days
kib [Sun, 13 Jun 2010 05:24:27 +0000 (05:24 +0000)]
In NFS clients, instead of inconsistently using #ifdef
DIAGNOSTIC and #ifndef DIAGNOSTIC for debug assertions, prefer
KASSERT(). Also change one #ifdef DIAGNOSTIC in the new nfs server.
cperciva [Sun, 13 Jun 2010 01:13:36 +0000 (01:13 +0000)]
In threaded processes, destroy the mutex atexit_mutex when we've
finished using it. This allows the mutex's allocated memory to be
freed.
This is one sense a rather silly change, since at this point we're
less than a microsecond away from calling _exit; but fixing this
memory leak is likely to make life easier for anyone trying to
track down other memory leaks.
np [Sat, 12 Jun 2010 22:33:04 +0000 (22:33 +0000)]
cxgb(4): add knob to get packet timestamps from the hardware.
The T3 ASIC can provide an incoming packet's timestamp instead of its RSS hash.
The timestamp is just a counter running off the card's clock. With a 175MHz
clock an increment represents ~5.7ns and the 32 bit value wraps around in ~25s.
# sysctl -d dev.cxgbc.0.pkt_timestamp
dev.cxgbc.0.pkt_timestamp: provide packet timestamp instead of connection hash
# sysctl -d dev.cxgbc.0.core_clock
dev.cxgbc.0.core_clock: core clock frequency (in KHz)
# sysctl dev.cxgbc.0.core_clock
dev.cxgbc.0.core_clock: 175000
das [Sat, 12 Jun 2010 17:32:05 +0000 (17:32 +0000)]
Introduce __isnanf() as an alias for isnanf(), and make the isnan()
macro expand to __isnanf() instead of isnanf() for float arguments.
This change is needed because isnanf() isn't declared in strict POSIX
or C99 mode.
Compatibility note: Apps using isnan(float) that are compiled after
this change won't link against an older libm.
ed [Sat, 12 Jun 2010 15:13:36 +0000 (15:13 +0000)]
Do the branding right this time.
I've looked at other places in the source tree where CLANG_VENDOR is
used and I suspect it might not be safe to use newlines here.
CLANG_VENDOR should just be defined to "FreeBSD ", just like the latest
Clang preview in OS X uses "Apple ". Properly use SVN_REVISION to define
it to the imported revision of Clang. I do want to have a date in there,
so slightly modify the code to support CLANG_VENDOR_SUFFIX.
kib [Sat, 12 Jun 2010 13:20:38 +0000 (13:20 +0000)]
Add modifications of devctl_notify(9) functions that take flags. Use
flags to specify M_WAITOK/M_NOWAIT. M_WAITOK allows devctl to sleep for
the memory allocation.
As Warner noted, allowing the functions to sleep might cause
reordering of the queued notifications.
ed [Sat, 12 Jun 2010 12:19:08 +0000 (12:19 +0000)]
ANSIfy prototypes in subr_usbd.c.
Clang generates the following warnings when building subr_usbd.c:
| subr_usbd.c:598:13: warning: promoted type 'int' of K&R function
| parameter is not compatible with the parameter type 'uint8_t' (aka
| 'unsigned char') declared in a previous prototype
| subr_usbd.c:627:13: warning: promoted type 'int' of K&R function
| parameter is not compatible with the parameter type 'uint8_t' (aka
| 'unsigned char') declared in a previous prototype
| subr_usbd.c:649:13: warning: promoted type 'int' of K&R function
| parameter is not compatible with the parameter type 'uint8_t' (aka
| 'unsigned char') declared in a previous prototype
Instead of just ANSIfying these three prototypes, do it for the entire
file.
marcel [Sat, 12 Jun 2010 01:45:29 +0000 (01:45 +0000)]
The ptc.g operation for the Mckinley and Madison processors has the
side-effect of purging more than the requested translation. While
this is not a problem in general, it invalidates the assumption made
during constructing the trapframe on entry into the kernel in SMP
configurations. The assumption is that only the first store to the
stack will possibly cause a TLB miss. Since the ptc.g purges the
translation caches of all CPUs in the coherency domain, a ptc.g
executed on one CPU can cause a purge on another CPU that is
currently running the critical code that saves the state to the
trapframe. This can cause an unexpected TLB miss and with interrupt
collection disabled this means an unexpected data nested TLB fault.
A data nested TLB fault will not save any context, nor provide a
way for software to determine what caused the TLB miss nor where
it occured. Careful construction of the kernel entry and exit code
allows us to handle a TLB miss in precisely orchastrated points
and thereby avoiding the need to wire the kernel stack, but the
unexpected TLB miss caused by the ptc.g instructution resulted in
an unrecoverable condition and resulting in machine checks.
The solution to this problem is to synchronize the kernel entry
on all CPUs with the use of the ptc.g instruction on a single CPU
by implementing a bare-bones readers-writer lock that allows N
readers (= N CPUs entering the kernel) and 1 writer (= execution
of the ptc.g instruction on some CPU). This solution wins over
a rendez-vous approach by not interrupting CPUs with an IPI.
This problem has not been observed on the Montecito.
jkim [Fri, 11 Jun 2010 23:38:25 +0000 (23:38 +0000)]
Apply band-aid around function-like macro fdrop() without turning it into
a real (inline) function or applying void casting for all its consumers.
In most of places, the "return value" is not checked nor assigned, which
causes too many warnings for some smart compilers, i.e., clang.
jfv [Fri, 11 Jun 2010 20:54:27 +0000 (20:54 +0000)]
Add a couple fixes from Michael Tuexen.
Remove unneeded rxtx handler, make que handler generic.
Do not allocate header mbufs in rx ring if not doing hdr split.
Release the lock in rxeof call to stack.
mlaier [Fri, 11 Jun 2010 19:35:05 +0000 (19:35 +0000)]
Cache the last result from if_indextoname for printing. This speeds up
"arp -an" when using a lot of aliases (on a single interface).
A better fix would include a better interface for if_indextoname than
getting the whole address list from the kernel just to find the one
index->name mapping.
Reported & analyzed by: Nick Rogers
MFC after: 3 days
projects / FreeBSD / FreeBSD.git / log