Commit Graph

1335 Commits

Author SHA1 Message Date
Bruce Evans
3fc9295da7 Fixed syscall arg checking in clock_settime(). Stack garbage was
checked to be >= 0.  This bug was introduced in rev.1.26.

Reported by:	John Hay <jhay@mikom.csir.co.za>
1997-08-03 07:26:50 +00:00
Bruce Evans
1fd0b0588f Removed unused #includes. 1997-08-02 14:33:27 +00:00
Steve Passe
da9f018228 Converted the TEST_LOPRIO code to default.
Created mplock functions that save/restore NO registers.
Minor cleanup.
1997-07-31 05:43:05 +00:00
John-Mark Gurney
5e2022633a fix a few problems with pty. warn about how if you only have 1 pty
defined, your really getting 32.  Also warn about how you can't have
more than 256 pty's when your using DEVFS (non DEVFS can use more, just
the makedev script doesn't know how to make >256).  it also doesn't
allocate more memory than needed in this case.

Make sure that the signal passed in TIOCSIG isn't 0 as it might cause
a panic.  I personally haven't seen this happen, but after a similar
bug in syscons crashed my machine, I'm acutely aware of this one. :)
1997-07-30 10:05:18 +00:00
Steve Passe
412f3e4d71 Modified the PEND_INTS algorithm to fix the ISA INT loss problem.
Noticed by:	dave adkins <adkin003@gold.tc.umn.edu> and others.
1997-07-28 03:59:54 +00:00
Steve Passe
f9e8dbb8c3 mpapic.c & mp_machdep:
- removed TEST_ALTTIMER.
 - removed APIC_PIN0_TIMER.
 - removed TIMER_ALL.

mplock.s:
 - minor update of try_mplock for new algorithm where a CPU uses try_mplock
	instead of get_mplock in the ISRs.
1997-07-26 01:55:19 +00:00
Steve Passe
812e4da7a8 New simple_lock code in asm:
- s_lock_init()
 - s_lock()
 - s_lock_try()
 - s_unlock()

Created lock for IO APIC and apic_imen  (SMP version of imen)
 - imen_lock

Code to use imen_lock for access from apic_ipl.s and apic_vector.s.
Moved this code *outside* of mp_lock.

It seems to work!!!
1997-07-23 20:47:19 +00:00
Steve Passe
f2aeb7eaac Cleaned up the FPU init. 1997-07-22 16:49:54 +00:00
Steve Passe
b9f415331e SMP code initializes the FPU of APs.
Suggested by:     Bruce Evans <bde@FreeBSD.ORG>
1997-07-21 17:03:22 +00:00
Steve Passe
35b3c4a0e5 Developed a new strategy for handling the 8254/8259/APIC issue. 1997-07-20 19:41:38 +00:00
Steve Passe
3577278519 Minor cleanup.
Pass string arg to apic_dump.
Moved bootverbose printing of SMP enabled INTs from clock.c to autoconf.c
1997-07-20 18:05:20 +00:00
Bruce Evans
e31521c3dd Removed unused #includes. 1997-07-20 08:37:24 +00:00
Bill Fenner
548af2789b Remove sonewconn() macro kludge, introduced in 4.3-Reno to catch argument
mismatches.  Prototypes do a much better job these days.

Noticed by:	bde
1997-07-19 20:15:43 +00:00
Steve Passe
1dec61e7c0 Added code to support #define APIC_PIN0_TIMER.
This code ALWAYS runs the 8254 timer thru the 8259 ICU.
It depricates the usage of "options SMP_TIMER_NC" in the config file.
1997-07-19 04:00:35 +00:00
Steve Passe
d2ecb616f2 Split TEST_CPUSTOP code into CPUSTOP_ON_DDBBREAK and mainline code. 1997-07-18 21:27:53 +00:00
Steve Passe
75c179003e printf cleanup. 1997-07-18 03:58:14 +00:00
John Dyson
78342719d6 Hopefully fix a few problems that could cause hangs in SMP mode.
1)	Make sure that the region mapped by a 4MB page is
	properly aligned.
2)	Don't turn on the PG_G flag in locore for SMP.  I plan
	to do that later in startup anyway.
3)	Make sure the 2nd processor has PSE enabled, so that 4MB
	pages don't hose it.

We don't use PG_G yet on SMP -- there is work to be done to make that
work correctly.  It isn't that important anyway...
1997-07-17 19:45:01 +00:00
Doug Rabson
f6b4c28555 Merge WebNFS support from NetBSD
Obtained from:	NetBSD
1997-07-17 07:17:33 +00:00
John Dyson
5aaef07c50 Clean up some lint associated with the AIO code. 1997-07-17 04:49:43 +00:00
Steve Passe
6c8a949030 Minor cleanup. 1997-07-15 02:46:37 +00:00
Bruce Evans
7e88aafca7 Use the correct size for a sector in the search for a label in
readdisklabel().  Sectors may be larger than DEV_BSIZE.
1997-07-13 15:53:20 +00:00
Steve Passe
7503ccc1c8 new code to control other CPUs: stop_cpus()/restart_cpus()/_Xstopcpu
this code is controlled by smptests.h: TEST_CPUSTOP, OFF by default

new code for handling mixed-mode 8259/APIC programming without 'ExtInt'
this code is controlled by smptests.h: TEST_ALTTIMER, ON by default
1997-07-13 01:22:48 +00:00
Steve Passe
409ba536dc Cleanup old stop_cpus/restart_cpus() cruft.
Leave TEST_TEST1 for now.
1997-07-13 01:07:57 +00:00
David Nugent
f4e39ee7af Adds sysctl int for shutdown timeout.
Reviewed by:	Poul-Henning Kamp <phk@dk.tfs.com>
1997-07-10 11:44:42 +00:00
Andrey A. Chernov
c6d372f6f3 Back out changes for 'conflicts' with IRQ, remove intr_registered() 1997-07-09 18:06:25 +00:00
Steve Passe
17ebd4d085 General cleanup of APIC code.
stop_cpus()/restart_cpus() STILL not working!
1997-07-08 23:46:00 +00:00
Steve Passe
a8988a70ce Reordered call to apic_initialize and setting invltlb_ok. 1997-07-08 23:25:40 +00:00
Steve Passe
9746742be0 stop_cpus(), currently BROKEN! (turned off in smptests.h by default).
restart_cpus(), currently BROKEN! (turned off in smptests.h by default).
1997-07-07 00:06:51 +00:00
John Dyson
2244ea07dc This is an upgrade so that the kernel supports the AIO calls from
POSIX.4.  Additionally, there is some initial code that supports LIO.
This code supports AIO/LIO for all types of file descriptors, with
few if any restrictions.  There will be a followup very soon that
will support significantly more efficient operation for VCHR type
files (raw.)  This code is also dependent on some kernel features
that don't work under SMP yet.  After I commit the changes to the
kernel to support proper address space sharing on SMP, this code
will also work under SMP.
1997-07-06 02:40:43 +00:00
Bruce Evans
43a6378726 Removed extra definition of constty. It is defined in subr_prf.c. 1997-07-01 00:52:37 +00:00
Bruce Evans
e747e4bcc1 Updated generated files (makesyscalls.sh changed). Only sysproto.h
really changed.
1997-06-29 17:47:32 +00:00
Bruce Evans
7a7bc7628c Don't generate unused nested #include of <sys/aio.h>. 1997-06-29 17:39:57 +00:00
Steve Passe
31d3baa2e0 Initialize private variable other_cpus during AP boot. 1997-06-27 23:38:32 +00:00
Steve Passe
b7f7f066f6 Added POST code output to various points of the startup code.
General cleanup.

New functions to stop/start CPUs via IPIs:

 - int stop_cpus( u_int map );
 - int restart_cpus( u_int map );

Turned off by default, enabled via smptests.h:TEST_CPUSTOP.
Current version has a BUG, perhaps a deadlock?
1997-06-27 23:33:17 +00:00
Steve Passe
4ef5e4e12c Program lint1 to handle NMIs.
Till now NMIs would be ignored.  Now an NMI is caught by the BSP.
APs still ignore NMI, am working on code to allow a CPU to stop other CPUs
via an IPI.
1997-06-27 22:27:18 +00:00
Tor Egge
b747f8bce4 Fill in some extra fields in the eproc structure. gdb uses this information
to determine where the data segment in core dumps should be mapped.
Reviewed by:	Peter Wemm <peter@spinner.dialix.com.au>
1997-06-27 15:42:05 +00:00
Peter Wemm
006ad618b8 Don't accept insane values for SO_(SND|RCV)BUF, and the low water marks.
Specifically, don't allow a value < 1 for any of them (it doesn't make
sense), and don't let the low water mark be greater than the corresponding
high water mark.

Pre-Approved by: wollman
Obtained from: NetBSD
1997-06-27 15:28:54 +00:00
Steve Passe
8b16756603 Merged/renamed functions:
- get_isa_apic_mask() -> isa_apic_mask()
 - get_isa_apic_irq() && get_eisa_apic_irq() -> isa_apic_pin()
 - get_pci_apic_irq() -> pci_apic_pin()
1997-06-25 21:01:52 +00:00
Joerg Wunsch
e16ed08126 Don't ever allow lowering the securelevel at all. Allowing it does
nothing good except of opening a can of (potential or real) security
holes.  People maintaining a machine with higher security requirements
need to be on the console anyway, so there's no point in not forcing
them to reboot before starting maintenance.

Agreed by:	hackers, guido
1997-06-25 07:31:47 +00:00
John Hay
5faa3121a9 Add tickadj to struct clockinfo, like NetBSD and OpenBSD.
NOTE: libc, time, kgmon and rpc.rstatd will have to be recompiled.
1997-06-24 18:21:09 +00:00
Tor Egge
3b5d3246bf Ensure that the boot CPU honours write protection in kernel mode.
This fixes one of the problems noted in PR kern/3688.
1997-06-24 17:26:07 +00:00
David Greenman
358311fe63 Killed bogus kernacc() call in malloc() DIAGNOSTIC code. kernacc() by
it's nature, locks the kernal_map, and this is deadly if kernal_map had
been locked previous to a (net) interrupt.
1997-06-24 09:41:00 +00:00
Steve Passe
ee889b3ba0 Fix calculation of initial mplock value.
We now use LOGICAL, not PHYSICAL, IDs to calculate the mplock.
1997-06-24 07:48:02 +00:00
Steve Passe
afbe6f7b6e Fixed breakage for "default" configurations in mptable_pass1(). 1997-06-24 06:55:30 +00:00
Peter Wemm
b3196e4b9f Preliminary support for per-cpu data pages.
This eliminates a lot of #ifdef SMP type code.  Things like _curproc reside
in a data page that is unique on each cpu, eliminating the expensive macros
like:    #define curproc (SMPcurproc[cpunumber()])

There are some unresolved bootstrap and address space sharing issues at
present, but Steve is waiting on this for other work.  There is still some
strictly temporary code present that isn't exactly pretty.

This is part of a larger change that has run into some bumps, this part is
standalone so it should be safe.  The temporary code goes away when the
full idle cpu support is finished.

Reviewed by: fsmp, dyson
1997-06-22 16:04:22 +00:00
John Dyson
3c631446d3 Remove a window during running down a file vnode. Also, the OBJ_DEAD
flag wasn't being respected during vref(), et. al.  Note that this
isn't the eventual fix for the locking problem.  Fine grained SMP
in the VM and VFS code will require (lots) more work.
1997-06-22 03:00:24 +00:00
John Dyson
2c1011f7ef Modifications to existing files to support the initial AIO/LIO and
kernel based threading support.
1997-06-16 00:29:36 +00:00
John Dyson
ee877a356c Add initial AIO/LIO kernel thread support files. This is preliminary, and
further features will be added.
1997-06-16 00:27:26 +00:00
John Dyson
6b195d32a1 Fix a problem with the VN device. Specifically, the VN device can
cause a problem of spiraling death due to buffer resource limitations.
The vfs_bio code in general had little ability to handle buffer resource
management, and now it does.  Also, there are a lot more knobs for tuning the
vfs_bio code now.  The knobs came free because of the need that there
always be some immediately available buffers (non-delayed or locked) for
use.  Note that the buffer cache code is much less likely to get bogged
down with lots of delayed writes, even more so than before.
1997-06-15 17:56:53 +00:00
Garrett Wollman
3f7773458e When APM is configured, turn off the power when halting for good. 1997-06-15 02:03:03 +00:00