locking, and the apparently unnecessary locking for -stable has been removed.
This may fix issues with missed interrupts since April, which manifested
themselves as slowdowns or hangs in radeon, in particular. Many cleanups also
took place. In the shared code, there are improvements to r128 driver
stability.
when loaded as a module
o cleanup data structures on module unload when no application has
been started (i.e. kldload, kldunload w/o mrtd)
o remove extraneous unlocks immediately prior to destroying them
Supported by: FreeBSD Foundation
part of the support is that it still assumes one master and one target
where as AGP 3.0 actually supports multiple devices on the bus.
Submitted by: Keith Whitwell <keith@tungstengraphics.com>
Sponsored by: The Weather Channel
a minor conflict):
o Use ETHER_ADDR_LEN in preference to '6'.
o Remove two unnecessary (caddr_t) casts. One of them causes problems in
my tree where etherbroadcastaddr is const, and (caddr_t) casts the const
away.
we had were bogus.
While here, reassign the copyright to the Project. There's nothing
in this files that originates from NetBSD, especially now that the
FreeBSD/alpha bits have been removed, but even then the amount of
inherited code that we actually used was nil.
mcontext_t for the register values. Currently only ld8 and ldfd
instructions are handled as those are the ones we need now (a
misaligned ld8 occurs 4 times in ntpd(8) and a misaligned ldfd
occurs once in mozilla 1.4 and 1.5). Other instructions are added
when needed.
at the first address and spills it to the second address. This
allows unaligned_fixup() to update the context of the process in
a way that assures proper rounding.
Similar functions for single-and extended-precision are added when
needed.
in that it provides an abstract (intermediate) representation for
instructions. This significantly improves working with instructions
such as emulation of instructions that are not implemented by the
hardware (e.g. long branch) or enhancing implemented instructions
(e.g. handling of misaligned memory accesses). Not to mention that
it's much easier to print instructions.
Functions are included that provide a textual representation for
opcodes, completers and operands.
The disassembler supports all ia64 instructions defined by revision
2.1 of the SDM (Oct 2002).
implement i386 compat numbers where it makes sense. This would save a
syscall translation layer. Yes, this breaks the abi slightly again, but
fortunately its just a recompile rather than tweaking the source. I will
be fixing the libc stubs while I'm here.
to a multiple of the access byte width. This overcomes errors in the
AML often found in Toshiba laptops. These errors were allowed by
the Microsoft ASL compiler and interpreter. This will NOT be imported
by ACPI-CA so make the change on our local branch. File was already off
the vendor branch.
Submitted by: blaz
Original idea: Rick Richardson for Linux
enable strict checks of the AML. Our default behavior will be to relax
checks to work on as many platforms as possible. Also clean up and document
other ACPI options while I'm here.
Include src/sys/security/mac/mac_internal.h in kern_mac.c.
Remove redundant defines from the include: SYSCTL_DECL(), debug macros,
composition macros.
Unstaticize various bits now exposed to the remainder of the kernel:
mac_init_label(), mac_destroy_label().
Remove all the functions now implemented in mac_process/mac_vfs/mac_net/
mac_pipe. Also remove debug counters, sysctls exporting debug
counters, enforcement flags, sysctls exporting enforcement flags.
Leave module declaration, sysctl nodes, mactemp malloc type, system
calls.
This should conclude MAC/LINT/NOTES breakage from the break-out process,
but I'm running builds now to make sure I caught everything.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Unstaticize mac_late.
Remove ea_warn_once, now in mac_vfs.c.
Unstaticisize mac_policy_list, mac_static_policy_list, use
struct mac_policy_list_head instead of LIST_HEAD() directly.
Unstaticize and un-inline MAC policy locking functions so they can
be referenced from mac_*.c.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
security/mac/mac_net.c
security/mac/mac_pipe.c
security/mac/mac_process.c
security/mac/mac_system.c
security/mac/mac_vfs.c
Note: Here begins a period of NOTES/LINT build breakage due to duplicate
symbols that will shortly be removed from kern_mac.c.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Extended attribute transaction warning flag if transactions aren't
supported on the EA implementation being used.
Debug fallback flag to permit a less conservative fallback if reading
an on-disk label fails.
Enforce_fs toggle to enforce file systme access control.
Debugging counters for file system objects: mounts, vnodes, devfs_dirents.
Object initialization, destruction, copying, internalization,
externalization, relabeling for file system objects.
Life cycle operations for devfs entries.
Generic extended attribute label implementation for use by UFS, UFS2 in
multilabel mode.
Generic single-level label implementation for use by all file systems
when in singlelabel mode.
Exec-time transition based on file label entry points.
Vnode operation access control checks (many).
Mount operation access control checks (few).
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Pipe enforcement flag.
Pipe object debugging counters.
MALLOC type for MAC label storage.
Pipe MAC label management routines, externalize/internalization/change
routines.
Pipe MAC access control checks.
Un-staticize functions called from mac_set_fd() when operating on a
pipe. Abstraction improvements in this space seem likely.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Network and socket enforcement toggles.
Counters for network objects (mbufs, ifnets, bpfdecs, sockets, and ipqs).
Label management routines for network objects.
Life cycle events for network objects.
Label internalization/externalization/relabel for ifnets, sockets,
including ioctl implementations for sockets, ifnets.
Access control checks relating to network obejcts.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
in mac_internal.h:
Sysctl tree declarations.
Policy list structure definition.
Policy list variables (static, dynamic).
mac_late flag.
Enforcement flags for process, vm, which have checks in multiple files.
mac_labelmbufs variable to drive conditional mbuf labeling.
M_MACTEMP malloc type.
Debugging counter macros.
MAC Framework infrastructure primitives, including policy locking
primitives, kernel label initialization/destruction, userland
label consistency checks, policy slot allocation.
Per-object interfaces for objects that are internalized and externalized
using system calls that will remain centrally defined: credentials,
pipes, vnodes.
MAC policy composition macros: MAC_CHECK, MAC_BOOLEAN, MAC_EXTERNALIZE,
MAC_INTERNALIZE, MAC_PERFORM.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
vm_pageout_scan(). Rationale: I don't like leaving a busy page in the
cache queue with neither the vm object nor the vm page queues lock held.
- Assert that the page is active in vm_pageout_page_stats().
Until we can have perfect knowledge that all callers above us think it's okay
for us to sleep, releasing *our* locks of course, we don't dare try and sleep.
in connection with Marvell based SATA->PATA dongles.
The problem was caused by a combination of things working
together to make it hard to spot...
The ATA driver has always started the ATA command, then build
the SG list for DMA and then finally started the DMA engine.
While this is according to specs, it poses a potential
problem as some controllers apparently do not allow for unlimitted
time between starting the ATA command and starting the DMA engine.
At about the same time as ATAng was committed there were lots
of other changes applied, some of which was locking in parts
that causes the busdma load functions to take significantly
longer to load the SG list.
This pushed the time spent between starting the ATA command and
starting the DMA engine over the hill for some controllers
(especially the Silicon Image DS3112a) and caused what looked
like lost interrupts.
The solution is to get all the SG list work or rather all
busdma related stuff done before we even try to start anything.
This has the nice side effect of seperating busdma out the
way it should be, so the working of the ATA machinery is not
cluttered up with busdma droppings, making the code easier
to read and understand.
sysctl that a given variable is tunable.
Also added is CTLFLAG_RDTUN, which is CTLFLAG_RD|CTLFLAG_TUN; TUN does
not always imply read-only, so RDTUN should be used where RD was used
before.
for dev_strategy() use.
Retire bio_driver[12] (aliases for b_io.bio_driver[12]) these fields are
reserved for device driver use and can as such never have any interest
in the buf end of things.
- Return NULL instead of returning memory outside of the stackgap
in stackgap_alloc() (FreeBSD-SA-00:42.linux)
- Check for stackgap_alloc() returning NULL in svr4_emul_find(),
and clean_pipe().
- Avoid integer overflow on large nfds argument in svr4_sys_poll()
- Reject negative nbytes argument in svr4_sys_getdents()
- Don't copy out past the end of the struct componentname
pathname buffer in svr4_sys_resolvepath()
- Reject out-of-range signal numbers in svr4_sys_sigaction(),
svr4_sys_signal(), and svr4_sys_kill().
- Don't malloc() user-specified lengths in show_ioc() and
show_strbuf(), place arbitrary limits instead.
- Range-check lengths in si_listen(), ti_getinfo(), ti_bind(),
svr4_do_putmsg(), svr4_do_getmsg(), svr4_stream_ti_ioctl().
Some fixes obtain from OpenBSD.
pick up the DEVFS inode number from the dev_t and find our directory
entry from that, we don't need to scan the directory to find it.
This also solves an issue with on-demand devices in subdirectories.
Submitted by: cognet
by libguile that needs to know the base of the RSE backing store. We
currently do not export the fixed address to userland by means of a
sysctl so user code needs to hardcode it for now. This will be revisited
later.
The RSE backing store is now at the bottom of region 4. The memory stack
is at the top of region 4. This means that the whole region is usable
for the stacks, giving a 61-bit stack space.
Port: lang/guile (depended of x11/gnome2)
chain passed into dc_encap, which dc_start was unaware of. This caused
the old (now invalid) mbuf to be passed to BPF_MTAP.
Spotted by: Kenjiro Cho <kjc@csl.sony.co.jp>
is non-free. (More checks can/should be added in the future.)
Use M_ASSERTVALID in BPF_MTAP so that we catch when freed mbufs are
passed in, even if no bpf listeners are active.
Inspired by a bug in if_dc caught by Kenjiro Cho.
rijndael_blockDecrypt() as both input and output.
This property is important because inside rijndael we can get away
with allocating just a 16 byte "work" buffer on the stack (which
is very cheap), whereas the calling code would need to allocate the
full sized buffer, and in all likelyhood would have to do so with
an expensive malloc(9).
table, acquiring the necessary locks as it works. It usually returns
two references to the new descriptor: one in the descriptor table
and one via a pointer argument.
As falloc releases the FILEDESC lock before returning, there is a
potential for a process to close the reference in the file descriptor
table before falloc's caller gets to use the file. I don't think this
can happen in practice at the moment, because Giant indirectly protects
closes.
To stop the file being completly closed in this situation, this change
makes falloc set the refcount to two when both references are returned.
This makes life easier for several of falloc's callers, because the
first thing they previously did was grab an extra reference on the
file.
Reviewed by: iedowse
Idea run past: jhb
to the object's type field and the call to vm_pageout_flush() are
synchronized.
- The above change allows for the eliminaton of the last parameter
to vm_pageout_flush().
- Synchronize access to the page's valid field in vm_pageout_flush()
using the containing object's lock.
- Specifying VM_MAP_WIRE_HOLESOK should not assume that the start
address is the beginning of the map. Instead, move to the first
entry after the start address.
- The implementation of VM_MAP_WIRE_HOLESOK was incomplete. This
caused the failure of mlockall(2) in some circumstances.
Use EP_{READ,WRITE}{,_MULTI}_{1,2,4} instead. I've had several people
submit patches like this over the years of varying qualities, markm
being the last. The names were chosen in consulation with mdodd on
irc.
I've tested this with only PCMCIA cards: 3CCE589EC and 3CCSH572BT.
I've not tried with my more extensive ISA, EISA and cbus collection.
Reviewed by: mdodd
