keyboard/mouse/display switch products (console switches). Some
products claim they emulate the PS/2 mouse when the host computer
talks to the mouse while the mouse is actually routed to another
host.
flags 0x200 Do not try to identify the mouse model. All
mice will be recognized as "generic PS/2".
0x400 Do not reset the mouse. Some switches' response
to the reset command is too slow and the psm
will timeout.
0x1000 Relax error checking when probing the mouse
port.
- Added another flag for pad devices.
flags 0x800 Assume the pad behaves like ALPS GlidePoint
when the user `taps' the surface of the pad;
it will be reported as the fourth button.
# `moused' is getting too over-loaded now. If we want something
# more than simple mouse emulation for tablets or remote devices,
# we should start writing a separate daemon...
Submitted by: luigi
the first time block 0 is read. This fix initialises the block
numbers to -1 which isn't the most correct thing for a daddr_t but
it isn't likely to cause a problem in the boot blocks and it could
do with a more thought out fix later.
The bug is probably benign on the i386 but on the alpha it can
cause initial file opens to fail. This is the cause of the "can't
open /boot/boot.conf" errors.
It appears on the alpha because of a number of combining factors.
On the alpha the LABELSECTOR is 0 so block 0 needs to be read in
from the media. The first time this happens you get a false hit
because the bc_blkno field is zero initially. Also, the timestamp
check against this cache hit succeeds because on the alpha a hacked
getsecs() function can return 0 when it starts counting so that
the zero initial timestamp + BCACHE_TIMEOUT is greater than the
current time until getsecs() has counted passed BCACHE_TIMEOUT.
The overall effect is that the first open() that occurs gets a
false cache hit and returns garbage to the bd_strategy() function
which then fails the open() call. This false hit then stays in the
cache until BCACHE_TIMEOUT getsecs() ticks have passed; all open()
calls during this time fail.
This explains why you can generally access the media by the time
you get to interp() and start issuing commands but the earlier
attempts to run the boot scripts are failing.
It's possible that this is causing the problem switching to the
mfsroot floppy as well but I haven't confirmed that.
almost always causes this panic for the curproc != pageproc case.
This case apparently doesn't happen in normal operation, but it
happens when vm_page_alloc_contig() is called when there is a memory
hogging application that hasn't already been paged out.
PR: 8632
Reviewed by: info@opensound.com (Dev Mazumdar), dg
Broken in: rev.1.89 (1998/02/23)
structure for the alpha. These give extra information about some
signals (such as SIGSEGV) and should be compatible with Digital Unix.
Submitted by: jdp
which is either a RealTek 8139 in disguise or a RealTek workalike.
This commit fixes the PCI vendor/device ID for this device
and updates the description string to reflect the actual identity
of the device.
I also changed the transmit encapsulation routine to always to
buffer copies on transmit. We end up doing this 99% of the time
anyway. I also tweaked the code that pads packets out to the minimum
length (60) bytes. I was fixing up the m_pkthdr.len value but not
m_len. I don't think this makes that much difference in the grand
scheme of things, but it makes me feel better.
bio interrupts, and a truncated file that along with the precise alignment
of the planets could result in a page being freed multiple times or a
just-freed page being put onto the inactive queue.
system, the mapping from logical to physical block number may be lost.
Hence we have to check for a reconstituted buffer and redo the call to
VOP_BMAP if the physical block number has been lost.
devstat_end_transaction error message that gets printed whenever the
busy count is < 0.
This will help catch drivers that improperly implement devstat(9) support.
when a TCP "stealth" scan is directed at a *BSD box by ensuring the window
is 0 for all RST packets generated through tcp_respond()
Reviewed by: Don Lewis <Don.Lewis@tsc.tdk.com>
Obtained from: Bugtraq (from: Darren Reed <avalon@COOMBS.ANU.EDU.AU>)
cache. If the cached result lets us say "yes", then go with that. If
we're not sure, or we think the answer might be "no", go to the wire to be
certain. This avoids all of the possible false veto cases, and allows us
to key the cached value with just the UID for which the cached value holds,
reducing the bloat of the nfsnode structure from 104 bytes to just 12 bytes.
Since the "yes" case is by far the most common, this should still provide
a substantial performance improvement. Also default the cache to on, with
a conservative timeout (2 seconds). This improves performance if NFS is
loaded as a KLD module, as there's not (yet) code to parse an option out
of the module arguments to set it, and sysctl doesn't work (yet) for OIDs
in modules.
The 'accelerator' mode was suggested by Bjoern Groenvall (bg@sics.se)
Feedback on this would be appreciated as testing has been necessarily
limited by Comdex, and it would be valuable to have this in 2.2.8.
* Update drivers to the latest version of the bus interface.
The ISA drivers' use of the new resource api is minimal. Garrett has
some much cleaner drivers which should be more easily shared between
i386 and alpha. This has only been tested on cia based machines. It
should work on lca and apecs but I might have broken something.
warnings for the recent change of the type of a module event handler.
Fixed a rotted comment (numeric types of filesystems are not listed here).
Made the function protototype in VFS_SET() more like the corresponding
function definition (don't use extern for prototypes).
Enforce a semicolon after the LKM case of VFS_SET().
MALLOC_DEFINE() and MALLOC_DEFINE() is needed by the recently
reenabled "reallocblks" code, but <sys/kernel.h> was only included
if CLUSTERDEBUG was defined. This was too harmless. gcc only
warns about garbage like `SYSINIT(blech);' at file scope ...
devstart_start_transaction() call is misplaced - it is after the
wdustart() call that queues the transaction on the controller queue.
Normally this doesn't matter because we're running at splbio() so
nothing will look at the controller queue. However, obsolescent
code for syncing labels sometimes slept after the transaction was
started, so the transaction sometimes completed before it was
[recorded as] started. This code was misplaced even for syncing
labels. Move it to the right place. It should go away, but
something may depend on its side effects.
- Interface wth the new resource manager.
- Allow for multiple drivers implementing a single devclass.
- Remove ordering dependencies between header files.
- Style cleanup.
- Add DEVICE_SUSPEND and DEVICE_RESUME methods.
- Move to a single-phase interrupt setup scheme.
Kernel builds on the Alpha are brken until Doug gets a chance to incorporate
these changes on that side.
Agreed to in principle by: dfr
This avoids the fsck-on-reboot symptoms if you're shutting down with a
hung or unreachable NFS server mounted. Also remove non-local
filesystems from the mount list to prevent the system hanging when it tries
to unmount them (for the same reason).
Drew points out that there's a good argument for forcibly removing all
"non syncable" filesystems from the mount list (eg. NFS mounts, disks
that aren't responding, etc.) as this then allows you to sync and
cleanly unmount their parents. No such change is included in this
patch.
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
pid space somewhat more sparse which improves the performance of finding
an unused pid on systems with large numbers of processes. The new value
was chosen so that it doesn't overflow the 5 digit pid fields in various
programs.
This yields startling performance increases for NFS clients for many
access profiles, due to the fact that ACCESS results are persistently
cached in the namecache in many cases.
Note that the code is somewhat conservative in that it requires an
exact credential match for a cache hit. This bloats the nfsnode
structure by sizeof(struct ucred) (96 bytes). Any less conservative
approach opens the possibility for a false veto in eg. setuid
applications. Alternative suggestions would be welcomed.
The cache is normally disabled, to activate set the sysctl variable
vfs.nfs.access_cache_timeout to a nonzero value. This is the time in
seconds that a cached entry will be considered valid; useful values appear
to be 2-10 seconds. Performance of the cache can be monitored with the
vfs.nfs.access_cache_hits and vfs.nfs.access_cache_hits variables.
basically do a on-the-fly defragmentation of the FFS filesystem, changing
file block allocations to make them contiguous. Thanks to Kirk McKusick
for providing hints on what needed to be done to get this working.
linker. This is intended to replace kvm_mkdb etc. The first version
only does name->value lookups, but it's open ended. value->name lookups
would probably be a good thing to do too.
It's been suggested to try and connect the symbol tables to sysctl (which
is probably a more flexible way of doing it if it's done right), but that
is far more complex and difficult than I was ready to have a shot at.
by bde, a few other tweaks to get the patch to apply cleanly again and
some improvements to the comments.
This change closes some fairly minor security holes associated with
F_SETOWN, fixes a few bugs, and removes some limitations that F_SETOWN
had on tty devices. For more details, see the description on the PR.
Because this patch increases the size of the proc and pgrp structures,
it is necessary to re-install the includes and recompile libkvm,
the vinum lkm, fstat, gcore, gdb, ipfilter, ps, top, and w.
PR: kern/7899
Reviewed by: bde, elvind
leaked memory on each unload and were limited to items referenced in
the kernel copy of vnode_if.c. Now a kernel module is free to create
it's own VOP_FOO() routines and the rest of the system will happily
deal with it, including passthrough layers like union/umap/etc.
Have VFS_SET() call a common vfs_modevent() handler rather than
inline duplicating the common code all over the place.
Have VNODEOP_SET() have the vnodeops removed at unload time (assuming a
module) so that the vop_t ** vector is reclaimed.
Slightly adjust the vop_t ** vectors so that calling slot 0 is a panic
rather than a page fault. This could happen if VOP_something() was called
without *any* handlers being present anywhere (including in vfs_default.c).
slot 1 becomes the default vector for the vnodeop table.
TODO: reclaim zones on unload (eg: nfs code)
removed at module unload (if in a module of course).
However; this introduces a new dependency on <sys/kernel.h> for things
that use MALLOC_DECLARE(). Bruce told me it is better to add sys/kernel.h
to the handful of files that need it rather than add an extra include to
sys/malloc.h for kernel compiles. Updates to follow in subsequent commits.
If the next available mailbox is not in the free state, print a warning
and handle the condition as a temporary resource shortage. The condition
should never happen, but we shouldn't panic since recovery is possible.
Convert from BT'isms to AHA'isms
Don't fail the probe if the illegal command bit is set in the status
register. If the BusLogic MultiMaster probe preceeded us, it may well
have determined that the card we are attaching to was not a true MultiMaster
by sending us a command that fails on the 154X.
Reset the adapter before doing the inquiry. This provides extra sanity
and will also clear the illegal command status bit that my be left over
from the MultiMaster probe.
Andrey A. Chernov
Archie Cobbs
Dmitrij Tejblum
Bill Paul
Kazutaka YOKOTA
Paul Richards
John Polstra
Bruce Evans
Doug Rabson
Dima Ruban
David Greenman
KATO Takenori
Kirk McKusick
Robert V. Baron
Kenneth D. Merry
Guido van Rooij
Mike Smith
Eivind Eklund
Garrett Wollman
Luigi Rizzo
Justin T. Gibbs
David E. O'Brien
Jordan K. Hubbard
Peter Wemm
Don Lewis
Robert Nordier
Nicolas Souchu