to be modified and extended without breaking the user space ABI:
Make the "ipcs" tool, which grubs around in kernel memory to report
status relating to System V IPC, use the _kernel variants on the
System V IPC data structures.
Submitted by: Dandekar Hrishikesh <rishi_dandekar at sbcglobal dot net>
Obtained from: TrustedBSD Project
Sponsored by: DARPA, SPAWAR, McAfee Research
to be modified and extended without breaking the user space ABI:
Use _kernel variants on _ds structures for System V sempahores, message
queues, and shared memory. When interfacing with userspace, export
only the _ds subsets of the _kernel data structures. A lot of search
and replace.
Define the message structure in the _KERNEL portion of msg.h so that it
can be used by other kernel consumers, but not exposed to user space.
Submitted by: Dandekar Hrishikesh <rishi_dandekar at sbcglobal dot net>
Obtained from: TrustedBSD Project
Sponsored by: DARPA, SPAWAR, McAfee Research
to be modified and extended without breaking the user space ABI:
Define _kernel wrapper data structures for the user-exposed data
structures that current server as the internal data structures for
the implementation:
- struct msqid_kernel wraps struct msqid_ds.
- struct semid_kernel wraps truct semid_ds.
- struct shmid_kernel wraps struct shmid_ds.
- Don't expose extern definition 'shmsegs' outside of sysv_shm.c.
Submitted by: Dandekar Hrishikesh <rishi_dandekar at sbcglobal dot net>
Obtained from: TrustedBSD Project
Sponsored by: DARPA, SPAWAR, McAfee Research
promiscuous mode introduced in 1.45, which programs the em card not
to strip or prepend tags when in promiscuous mode without also
modifying behavior to manually prepend a vlan header in the event
that the card isn't doing it on transmit. Due to a feature of card
operation, if the global VLAN prepend/strip register isn't set,
setting the VLAN tag flag on individual packet descriptors will
cause the packet to be transmitted using ISL encapsulation rather
than 802.1Q VLAN encapsulation.
This fix causes em_encap() to prepend the header by tracking whether
the card is configured to temporarily disable prepending/stripping
due to promiscuous mode. As a result, entering promiscuous mode on
the parent em interface no longer causes vlans to appear to "wedge"
or transmit ISL-encapsulated frames, which typically will not be
configured/spoken by the other endpoints on the VLAN trunk. This
bug may also exist in other drivers, and the additional vlan
encapsulation logic should be abstracted and centralized in
if_vlan.c if so.
RELENG_5_3 candidate.
MFC after: 1 week
Tested by: pjd, rwatson
Reported by: astesin at ukrtelecom dot net
Reported by: Mike Tancsa <mike at sentex dot net>
Reported by: Iasen Kostov <tbyte at OTEL dot net>
of submakes spawned during processing.
We create a fifo and stuff one character into it for each job we are
allowed to run. The name of the fifo is passed to child processes
in the MAKE_JOBS_FIFO environment variable.
A make which finds this variable on startup will open the fifo and
only spawn jobs when it managed to read a token from the fifo.
When the job completes a token is writen back to the fifo.
Slave make processes get one token for free: the one their parent
make got in order to run them. This makes the make processes
themselves invisible in the process counts.
The net effect is that "make -j 12 -s buildworld" will start at
most 12 jobs at the same time, instead of as previously up to
65 jobs would get started.
from the beginning). Make used to handle all its interrupt-time stuff
directly from the signal handler, including calls to printf, accessing
global data and so on. This is of course wrong and could provoke a core
dump when interrupting make. Just set a flag in the signal handler and
do everything else from the main thread.
PR: bin/29103
and 'mediasz' is in bytes. As it so happens, we define 'last' as the
sector number of the last sector on the medium which also is the size
of the PMBR partition. Therefore, use 'last' instead of 'mediasz'.
Submitted by: Dan Markarian <markarian at apple dot com>
reports of problems. The bug is probably that there are cases where
`xfer->timeout && !sc->sc_bus.use_polling' is not a suitable test
for an active timeout callout, so an explicit flag will be necessary.
Apologies for the breakage.
the tree. Small tweaks were made by myself to eliminate unnecessary
includes and some other minor issues. Last time I asked takawata-san
about this driver, he suggested I commit it.
Submitted by: takawata
of atomic_store_rel().
- Use the 80386 versions of atomic_load_acq() and atomic_store_rel() that
do not use serializing instructions on all UP kernels since a UP machine
does need to synchronize with other CPUs. This trims lots of cycles from
spin locks on UP kernels among other things.
Benchmarked by: rwatson
a bridge without a _PRT were a _PRT was needed. Instead, the warning in
dmesg is a false warning and only serves to cause unnecessary concern.
MFC after: 1 week
be made holding the NFS server mutex. To clean this up, introduce a
version of the function, nfsrv_access_withgiant(), that expects the
NFS server mutex to already have been dropped and Giant acquired.
Wrap nfsrv_access() around this. This permits callers to more
efficiently check access if they're in a code block performing VFS
operations, and can be substitited for the nfsrv_access() call that
triggered this bug.
PR: 73807, 73208
MFC after: 1 week
understood by Perl's Test::Harness module and prove(1) commands.
Update README to describe the new protocol. The work's broken down into
two main sets of changes.
First, update the existing test programs (shell scripts and C programs)
to produce output in the ok/not ok format, and to, where possible, also
produce a header describing the number of tests that are expected to be
run.
Second, provide the .t files that actually run the tests. In some cases
these are copies of, or very similar too, scripts that already existed.
I've kept the old scripts around so that it's possible to verify that
behaviour under this new system (in terms of whether or not a test fails)
is identical to the behaviour under the old system.
Add a TODO file.
is still mostly the GCC 2.95 one, with faint attempts by me over the years
to document a few new switches. Thus, it is dubious to claim documentation
of specific modern GCC versions.
Noted by: delphij
