userland for libc/gmon to compile, so the typedef in <machine/types.h>
isn't good enough. This is really ugly since we end up with the
actual value which uintfptr_t is typedef'd from, in multiple places.
This is bug for bug compatible with the other FreeBSD architectures.
Noticed by: sparc64 tinderbox
ruleset. If we do, that means there's a ruleset loop (10 includes 20
include 30 includes 10), which will quickly cause a double fault due
to stack overflow (since "include" is implemented by recursion).
(Previously, we only checked that X didn't include X.)
not responding) then drop any data on the outgoing queue in
soisdisconnected because there is no way to get it to its destination
any longer.
The only objection to this patch I got on -net was from Terry, who
wasn't sure that the condition in question could arise, so I provided
some example code.
basically maps all of physical memory 1:1 to a range of virtual addresses
outside of normal kva. The advantage of doing this instead of accessing
phsyical addresses directly is that memory accesses will go through the
data cache, and will participate in the normal cache coherency algorithm
for invalidating lines in our own and in other cpus' data caches. So
we don't have to flush the cache manually or send IPIs to do so on other
cpus. Also, since the mappings never change, we don't have to flush them
from the tlb manually.
This makes pmap_copy_page and pmap_zero_page MP safe, allowing the idle
zero proc to run outside of giant.
Inspired by: ia64
implementation. This flag will indicate that the security label
in the vnode is currently valid, and therefore doesn't need to
be refreshed before an access control decision can be made. Most
file systems (or stdvops) will set this flag after they load the
MAC label from disk the first time to prevent redundant disk I/O;
some file synthetic file systems (procfs, for example) may not.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
MAC support will be merged into the main tree over the next week in
reasonable size chunks; much more to follow.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
during execve() to use a 'credential_changing' variable. This makes it
easier to have outstanding patchsets against this code, as well as to
add conditionally defined clauses.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
since it breaks mtx_owned() on spin mutexes when used outside of
mtx_assert(). Unfortunately we currently use it in the i386 MD code
and in the sio(4) driver.
Reported by: bde
o reduce the extra-long ID names.
o TI-1510, 1520 and 4510 support.
o MFUNC is the name of the register on TI 1200 and newer chips (except
125x and 1450). Initialize it in the func routine, but only
if NO_MFUNC isn't set.
o better comments about above workaround
o register definitions for MFUNC.
o move zoom video disable to a better place.
o Rename the insanely long PCIC bridge ids.
o Add my copyright to pccbb.c
o Add support for the TI-1510, TI-1520 and TI-4510 series of upcoming
bridges.
o Init MFUNC if it is zero and the TI part has a MFUNC register
at offset 0x8c (1030, 1130 and 1131 don't have anything there, the
1250,1251,1251B and 1450 have a different thing there. The rest
have it. TI is likely to only do MFUNC from now on. The IRQMUX
in the 1250 series of chips needs no tweaks.
o Adjust to new exca interface.
o Add comments about TI chips that I learned in talking to an
engineer at TI.
o Add register definitions for MFUNC.
o Create CB_TI125X chipset type.
o Protect .h against multiple includes.
o eliminate the pointers to the read/write routines. The
bus_space_read routines can cope since we have the offset
field.
o Print a warning if the requested map address is > 16M and
your chipset doesn't support the extended ExCA registers.
of the Netgear GA302-T. I changed the symbolic names in the
submitter's patch to reflect the part number of the chip instead
of the board.
PR: kern/38988
Submitted by: Brad Chapman <chapmanb@arches.uga.edu>
MFC after: 2 days
Through the PITA of endiannness, clock has to be MHz freq << 8.
Don't trust NVRAM on SBus cards.
Set a default initiator ID sensibly.
SBus/ISP now working, what with the change to sbus.c earlier today.
vm_page_rename() from vm_object_backing_scan(). vm_page_rename()
also performs vm_page_deactivate() on pages in the cache queues,
making the removed vm_page_deactivate() redundant.
flags include INTR_MPSAFE. Put the flags in a common place so that
both isp_sbus && isp_pci DTRT.
In isp_mbxdma setup, drop any locks prior to calling things like
bus_dmatag_create. This gets rid of these obnoxious WITNESS messages
about 'sleeping with locks held' blah blah blah blah blah.
'single threading thread' when the last other thread suspends.
I had this code in there before but it seems to have been
accidentally deleted somewhere along the way. This would only affect
multithreaded processes.
Reviewed by: David Xu <bsddiy@yahoo.com>
pnbuf to increase the chances of detecting use of a free'd name buffer
if SAVENAME or SAVESTART wasn't passed in. Curiously, running with these
changes doesn't panic the kernel, and should.
of the inlines, like its cousin, m_free(). Also, make a small (first
step?) optimisation of m_free() to use the MBP_PERSIST{,ENT} interface
to hold the lock across frees when possible. The thing is that right
now, we can only do this easily for at most across one mbuf + one
cluster free, as the comment mentions (it also explains why). Anyway,
some basic tests revealed a 5-10% overall improvement. Some of the
results can be found here:
http://people.freebsd.org/~bmilekic/code/measure.txt
a ucred by itself as part of an nfs descriptor, then bzero's the ucred,
fails to initialize the mutex, etc. This is very bad, but I don't have
time to fix it right now. nfsd should instead hold a cred pointer,
and the credential should be properly initialized, probably from a
descendent of a kernel process credential.
non-default but reasonable values of hz this member overflowed,
breaking NFS over UDP.
Also, as long as I'm plowing up struct sockbuf ... Change certain
members from u_long/long to u_int/int in order to reduce wasted
space on 64-bit machines. This change was requested by Andrew
Gallatin.
Netstat and systat need to be rebuilt. I am incrementing
__FreeBSD_version in case any ports need to change.
is that grouped frees will be done as most often as possible without
dropping the cache lock in between. So, for the most part, they'll be
done without the lock being dropped. This is particularly true if you
have something that does a grouped m_getm() or m_getcl() (a cluster and
mbuf at the same time) - most likely getting the buffers from the
same per-CPU cache - and then frees them with m_free{,m}(). Unless
the buffers' underlying buckets were moved, the free will be done without
the lock getting dropped in between. So far, only m_free() has been
shown how to do this, and m_freem() will shortly follow.
Since I'm here, I also fixed a small (but mostly harmless) type-mismatch
introduced in the last commit.
has been specified through /boot/loader.conf as opposed to setting it
in /etc/sysctl.conf. Only PCMDIR_PLAY channel can be used as a parent
of virtual channel. Do not initialize a new vchan for a given physical
channel if other physical channel already has one created.
PR: 31597
Approved by: obrien (mentor)
disk devices. This fixes the problem with these ioctls returning
EINVAL for plain slice devices with no disklabel on them.
The patch incorporates improvements and style fixes from BDE.
Reviewed by: bde
Approved by: obrien (mentor)
do_sendfile(). This allows us to rearrange an if statement in order to
avoid doing an unnecesary call to vm_page_lock_queues(), and an attempt
at re-wiring the pages (which were wired in the vm_page_alloc() call).
Reviewed by: alc, jhb
