Document the getdents(2) system call. The documentation was
added to the getdirentries(2) man page because 95%+ of that
man page comprised the text of the getdents(2) man page
I obtained from NetBSD.
Only output `rcsid' (set to our Id string) into the resulting parser file.
Don't output `sccsid' (set to an anchient UCB Id string) into the parser file.
Fix two bugs in nfs_readdirplus(). The first is that in some cases,
vnodes are locked and never unlocked, which leads to processes starting
to wedge up after doing a mount -o nfsv3,tcp,rdirplus foo:/fs /fs; ls /fs.
The second is that sometimes cnp is accessed without having been
properly initialized: cnp->cn_nameptr points to an earlier name while
"len" contains the length of a current name of different size. This
leads to an attempt to dereference *(cn->cn_nameptr + len) which will
sometimes cause a page fault and a panic.
With these two fixes, client side readdirplus works correctly with
FreeBSD, IRIX 6.5.4 and Solaris 2.5.1 and 2.6 servers.
Submitted by: Matthew Dillon <dillon@backplane.com>
Correct the sanity test length calculation in nfsrv_readdirplus(): len is
being incremented by 4 bytes too few each time through the loop, which
allows more data into the mbuf chain that we really want. In the worst
case, when we're using 32K read/write sizes with a TCP client, this causes
readdirplus replies to sometimes exceed NFS_MAXPACKET which leads to a
panic. This problem cropped up for me using an IRIX 6.5.4 NFSv3 TCP client
with 32K read/write sizes, however supposedly it can be triggered by
WinNT NFS servers too. In theory, it can probably be triggered by any
NFS v3 implementation using TCP as long as it's using the maxiumum block
size.
Reviewed by: Matthew Dillon <dillon@backplane.com>
Formatting-only cleanup accidentally omitted from the patch merge in the
previous major update. Bring new code into style alignment with the
existing code. No functional changes.
On an AS 600 5/266 (and possibly others), accessing the configuration
space of PCI devices that don't exist cause PCI master & target aborts
rather than returning ~0 or giving a machine check. Bring in some code
from NetBSD to handle this properly.
Alter the behavior of sys/kern/subr_bus.c:device_print_child()
- device_print_child() either lets the BUS_PRINT_CHILD
method produce the entire device announcement message or
it prints "foo0: not found\n"
Alter sys/kern/subr_bus.c:bus_generic_print_child() to take on
the previous behavior of device_print_child() (printing the
"foo0: <FooDevice 1.1>" bit of the announce message.)
Provide bus_print_child_header() and bus_print_child_footer()
to actually print the output for bus_generic_print_child().
These functions should be used whenever possible (unless you can
just use bus_generic_print_child())
The BUS_PRINT_CHILD method now returns int instead of void.
Modify everything else that defines or uses a BUS_PRINT_CHILD
method to comply with the above changes.
- Devices are 'on' a bus, not 'at' it.
- If a custom BUS_PRINT_CHILD method does the same thing
as bus_generic_print_child(), use bus_generic_print_child()
- Use device_get_nameunit() instead of both
device_get_name() and device_get_unit()
- All BUS_PRINT_CHILD methods return the number of
characters output.
Explicitly list the i/o addresses of the serial ports.
Prompted by docs/12343, in which people seemed to get a little confused.
The original text in the file said:
[...]
# By default we use COM1 as our serial console port *if* we're going to use
# a serial port as our console at all. (0x3E8 = COM2)
#
#BOOT_COMCONSOLE_PORT= 0x3F8
[...]
From what I can make out, some people have assumed that means that if
they just uncomment the BOOT_COMCONSOLE_PORT then it will use COM2:
These same people then assume that "0x3F8" on that line is a typo for
"0x3E8".
What it actually means is that if you uncomment the line then the default
stays as "Ox3F8" (COM1:), and that you have to uncomment the line, *and*
change the value of the variable in order to use COM2:.
So I've made that a little bit clearer. I've also listed the hex values
for COM1: thru COM4:, snarfed from sys/isa/isareg.h.
PR: docs/12343
Submitted by: Bill Grunfelder <wjgrun@dippy.cyberwar.com>
se [Wed, 28 Jul 1999 20:28:47 +0000 (20:28 +0000)]
The ARC BIOS / AlphaBIOS specific primary boot loader. This code is the
result of a joined effort with parts contributed by Doug Rabson, Warner
Losh and Stefan Esser (hope I did not forget anybody). Part of the sources
is obtained from NetBSD with modifications.
This code is work in progress:
As of the time of the initial import, a loader.exe executable is built,
which can be loaded on an Alpha with NT only firmware, but no attempt is
made to switch to OSF PAL code as required to start an actual kernel.
We're called too early to have any idea whether APM is going to be
active or not. The only sane thing we can do here is assume that if
APM is supported it might be active at some point, and bail.
In reality, even this isn't good enough; regardless of whether we support
APM or not, the system may well futz with the CPU's clock speed and throw
the TSC off. We need to stop using it for timekeeping except under
controlled circumstances. Curse the lack of a dependable high-resolution
timer.
Add support for SYS_RES_DENSE and SYS_RES_BWX resource types. These are
equivalent to SYS_RES_MEMORY for x86 but for alpha, the rman_get_virtual()
address of the resource is initialised to point into either dense-mapped
or bwx-mapped space respectively, allowing direct memory pointers to be
used to device memory.
Reviewed by: Andrew Gallatin <gallatin@cs.duke.edu>
Go back to allowing ``.'' as a username.group separator for backward
compatibility. : is still the documented non-ambiguous approach. The
algorithm used will correctly parse david.obrien.staff as strrchar() is
used, and in my mind more people would use a ``.'' in the username than
the group name.
Convinced by argument and patch by: sheldonh (with slight changes by me)
brian [Tue, 27 Jul 1999 23:44:00 +0000 (23:44 +0000)]
o Overhaul filtering, adding facilities to jump over rules and to
negate the sense of rules.
o Remove the redundant (and undocumented) ``host'' and ``port''
words (README.changes updated).
o Don't permit (and ignore) garbage instead of the protocol.
Mostly submitted by: Peter Jeremy <jeremyp@gsmx07.alcatel.com.au>
Every reqh in an aborted pipe is given status CANCELED and the callback is
called. It might be necessary to split that routine into two parts in
which calling the callback is not done at splusb().
brian [Tue, 27 Jul 1999 13:47:59 +0000 (13:47 +0000)]
If we've negotiated CBCP and have also specified ``none'' as a possible
callback option, and the server sends us CBCP_NONUM, proceed directly
to the network phase rather than insisting on our configured CBCP
option.
Implement the BUS_PROBE_NOMATCH method for the PCI bus.
This function is called for each device for which no driver
was found.
Output is similar to the eisa_probe_nomatch() function but with the
added benefit of displaying the assigned IRQ (since PCI gives us
this information up front.)
Output is like so:
pci0: unknown card CPQ0508 (vendor=0x0e11, dev=0x0508) at 11.0 irq 9
pci0: unknown card DFZ0508 (vendor=0x10da, dev=0x0508) at 11.0 irq 9
pci0: unknown card DBL0508 (vendor=0x104c, dev=0x0508) at 11.0 irq 9
pci0: unknown card DDM0011 (vendor=0x108d, dev=0x0011) at 11.0 irq 9
I'm not happy with the 3 lines of macro cruft that got added but
I consider it a temporary annoyance as those bits will be moved to
some place where PCI, EISA and ISAPNP code will be able to use them.
(Not surprisingly, this message is longer than the code in question.)
On FreeBSD/i386, when you use the SYS_RES_MEMORY resource to allocate
a PCI memory mapped region, rman_get_bushandle() returns what happens
to be a kernel virtual address pointing to the base of the PCI shared
memory window. However this is not the behavior on all platforms:
the only thing you should do with the bushandle is pass it to the
bus_spare_read()/bus_space_write() routines. If you actually do want
the kernel virtual address of the base of the PCI memory window, you
need to use rman_get_virtual().
The problem is that at the moment, rman_get_virtual() returns a physical
address, which is bad. In order to get the kernel virtual address we
need, we have to play with it a little.
Presumeably this behavior will be changed, but in the meantime the
Tigon driver won't work. So for the moment, I'm adding a kludge to
make things happy on the alpha: the correct kernel virtual address
is calculated from the value returned by rman_get_virtual(). This
should be removed once rman_get_virtual() starts doing the right
thing.
This should make the Tigon actuall work on the alpha now.
Hide pthread cancellation routines behind #ifdef NOT_YET. They are
not currently supported. Also corrected the declaration for
pthread_testcancel which incorrectly returned int when POSIX and
SUSv2 both say it should be void.
Submitted by: Ralf S. Engelschall <rse@engelschall.com>
Reviewed by: John Birrell <jb@freebsd.org>
projects / FreeBSD / FreeBSD.git / log