with the current default exception (un)mask. There should be no such
processes unless you change the mask. Someday the mask should be
changed to the IEEE default of everything masked. The npx state
gets saved so that it can be checked and this may have the side effect
of fixing a bug that was reported for 1.1.5. (npx exceptions may
sometimes leak across exits and clobber another process. I can't see
how this can happen.)
Get some missing/wrong declarations from headers now that the headers
have them.
the following.
Move declarations to and from <machine/segments.h>. Make segment stuff
static if possible.
Remove unused (although initialized) global variables _default_ldt,
currentldt, _gsel_tss (rename the latter to the auto variable
gtel_tss).
Use "correct" and consistent types for interrupt handlers.
Remove a mailing address from the code.
Fix type mismatches found by adding prototypes.
Partly support BDE_DEBUGGER. Still broken by conflict with APM. Does
nothing if BDE_DEBUGGER is not defined.
Clean up prototypes and data declarations. Declare most of the segment
functions that are implemented in support.s. Make data private in
machdep.c if possible.
Parenthesize expressions in macros properly!
${Uniformize idempotency ifdef}.
to avoid compiler warnings.
Clean up prototypes: alphabetize; don't use redundant `extern' or
meaningless `extern inline'.
Uniformize idempotency ifdef.
get truncated to LONG_MAX. Don't lobotomize the merged library source.
Make all private data static.
Use int_parms for the i/o "address" since the "address" is really a number
and is represented as an int.
Add command `flags' to allow changing device flags.
Fix scrolling of device listing. Only scrolling of the current devtab
was controlled. Reprint the header after scrolling.
Rename commands and change strings to match their config(8) keywords:
io -> port
IOaddr -> port
mem -> iomem (abbreviation is io :-()
MemAddr -> iomem
case changes
Don't use NULL for ASCII NUL.
Call strtoul() with base 0 for both numbers and addresses so that input
is consistent and hex and octal can be used for numbers.
Fix entry of irq number. Check the range at no extra cost. It wasn't
possible to enter irq -1.
Format device listing better. Large numbers (such as 0xffffffff for the
GENERIC lpt0 port) messed up the formatting.
Show the unit number in the device listing. Comment about the fields
that aren't shown.
of the 1.1.5 driver, a recent version of the NetBSD driver, Andres'
transmission start threshold code, and all other relavent changes to the driver
since it was brought into 2.0. The multicast support from NetBSD has not be
folded in yet. I've tested it under high loads for two weeks and it is now
robust enough to be included in the GENERIC kernel.
Reviewed by: gibbs
Submitted by: vega@sophia.inria.fr (Andres Vega Garcia)
cosmetique) because we already have right things there or his changes
are incorrect.
Fix mcd_subchan to return position, inspired by idea from
bugress@s069.infonet.net, but different implementation.
Here is the improved probe for the mse (Bus Mouse) device driver. I
have been running with this under 1.1.5.1 as well as 2.0 without a hitch for
quite a while.
Submitted by: lars
Somebody should make a mib variable for it.
Just now it is pointless to dump the kernel, since we have nothing which
can read the dump.
Furthermore is should never be the default to dump.
options DODUMP
will enable dumps.
for all reasonable HZ's. HZ > 1000 doesn't work because of sloppy
conversions in hzto() (division by (tick / 1000) == 0). This was
fixed in 1.1.5.
Eliminate some extern declarations by including the appropriate header
files that now contain appropriate declarations.
tsleep()). Try `dd if=/dev/zero of=/dev/pcaudio bs=640k count=1'. The
write takes a few hundred seconds to drain, and if it is killed by a
signal, it still takes a few hundred seconds to drain and all of those
seconds are spent busy-waiting.
Clean up includes and declarations. Remove bogus casts of args to
timeout functions.
doesn't have to calculate it every call.
Rename `timer0_prescale' to `timer0_prescaler_count' and maintain it
correctly. Previously we lost a few 8253 cycles for every "prescaled"
clock interrupt, and the lossage grows rapidly at 16 KHz. Now we
only lose a few cycles for every standard clock interrupt.
Rename `*_divisor' to `*_max_count'.
Do the calculation of TIMER_DIV(rate) only once instead of 3 times each
time the rate is changed.
Don't allow preposterously large interrupt rates. Bug fixes elsewhere
should allow the system to survive rates that saturate the system, however.
Clean up declarations.
Include <machine/clock.h> to check our own declarations.
outside the critical region.
Make it work with 2.0. It wasn't designed to be called at splclock().
Make it work with prescaling. The overflow threshold was bogus.
Make it work for any HZ. Side effect of fixing prescaling.
Speed it up. Allocate registers better. Reduce multiplication and
division to multiplication and a shift. Speed is now 5-6 usec on a
486DX/33, was about 3 usec more.
Optimize for the non-pentium case. The pentium code got moved around
a bit and hasn't been tested.
Change #include's to 2.0 style.
for it is incomplete and buggy. There is no problem unless Xintr0()
is reentered or should be reentered, but high clock interrupt
frequencies for pcaudio cause Xintr0() to be reentered (or clock
ticks to be lost when Xintr0() should have been reentered but
wasn't), and we lose little by delaying the call to softclock().
Move declarations related to the clock driver to clock.h.
Move declarations related to the npx driver to npx.h.
Clean up the remaining declarations.
I know that many of these entries are bogus and need to be revisited,
but let's get the tree working again for now and then do a pass through
looking at all the __FreeBSD__ entries, shall we?
floppies now. I'm not sure why, but things hang when it gets to the
`changing root to fd0c' part. Without your latest commit, everything works
fine. Maybe you can figure out what you broke after ALPHA! :)
errors at a lower ipl. clist starvation problems can cause hundreds of
tty buffer overflows per second and logging them all amplified the
problems. This problem was less serious in 1.1.5.
Avoid a race in the check for starting a new block of output. com_events
was sometimes messed up and siopoll() looped endlessly. This bug was
introduced in 2.0.
Clean up previous 2 commits. Rename sio_registerdev() to sioregisterdev()
to match the (bad) surrounding naming conventions. There should be a
generic_registerdev().
created by Amancio Hasty (specificly, this, in conjunction with his sound
driver mods for dual-mode DMA will allow VAT compiled for BSD/386 1.1 to
run under FreeBSD 2.x.)
Otherwise clean up the includes. Don't include anything included by
param.h. Do include systm.h and cons.h to avoid satisfy -Wimplicit.
Don't include console.h or use NOKEY because these are for syscons
and we use generic consoles.
Don't follow null pointer for command "ls -lrt" - don't allow extra
args but do allow trailing blanks.
Check for invalid device numbers. strtol() failures are now checked
for in all cases, but not carefully enough. We should check for
trailing junk, allow any base in all cases (just like config) and
handle signs better . (Use strtoul not strtol and cast by assignment
to the correct type - always an integral type, PARM_ADDR is bogus.
Hex numbers > 0x7fffffff can't be entered now. 0xffffffff has to
be entered as -1.)
Cosmetic.
Return from trap() if trap_fatal() returns. trap_fatal() isn't
fatal if you have ddb. Returning from trap() is usually the right
thing to do and much better than falling through.
Build a dummy frame at the top of tmpstk to help debuggers trace the stack
when the system is idle.
swtch.s: idle():
Initialize the frame pointer so that debuggers don't try to trace a bogus
stack.
Load the frame pointer, load the stack pointer and switch out the old
stack in the unique order that never leaves one of the pointers pointers
invalid so that debuggers can trace idle(). Disabling interrupts
provides sufficient validity for normal operation, but debuggers use
(trace) traps.
. avoid resetting the FDC every time the last motor is going off;
instead, give it a 60-second period for possible later reactivation.
This prevents us from needing to recalibrate the FDC too often,
but still allows for an ``automagic error recovery', just in case the
controller is absolutely stuck. (Simply wait for 60 seconds, and
try it again.)
. made the floppy head settle time after a seek a constant
that might be overridden by a config option. (Well, actually the
divisor of the settle time). Pepople often reported problems with
their floppies, so i need a simply mechanism that allows them
to play with that value. (I personally cannot find any problem
on *my* drives.)
. implement the FD_DEBUG ioctl command, in case the driver
is compiled with DEBUG turned on.
. removed a bogus parameter from a printf; the remaining warnings
from gcc -Wall seem to be warnings about the %b format gcc cannot
understand
. rearrange Garett's code to fit better in the existing structure
of #define/type/function ordering.
. make everything fit into 79 columns again.
This way, it's possible for a user to activate/deactivate floppy driver
debugging, even if (s)he doesn't like the overhead of running DDB.
Since some ppl tend to have problems with their drives, this might be
valuable for investigations.
Bruce Evans
Nate Williams
David Greenman
Justin T. Gibbs
Jordan K. Hubbard
Andrey A. Chernov
Poul-Henning Kamp
Andreas Schulz
Joerg Wunsch
Paul Traina
Gary Palmer
Stefan Eßer
Garrett Wollman