Commit Graph

70 Commits

Author SHA1 Message Date
Mike Smith
9eec696993 Change the default poweroff delay from 0 to 5 seconds. This seems to be
adequate for the IDE disks that I have available for testing.  Most seem
to wait between 1 and 3 seconds before flushing their caches.

Add the ability to override the delay at compile time via the
undocumented option POWEROFF_DELAY.  The delay can still be set via
sysctl as it was originally implemented.
1999-12-07 04:35:37 +00:00
Poul-Henning Kamp
72dfe7a3d7 I always forget to check before I reboot a system, and while it
boots I try in vain to remember which month or even year this system
was last booted in.

Print out the uptime before rebooting, and give people like me
less (or more as it may be) to think about while the systems boots.
1999-12-06 22:35:51 +00:00
Poul-Henning Kamp
ee072c08d0 Convert dumpon to work on character devices instead of block devices.
NB: You may need to change your /etc/rc.conf!
1999-11-28 16:25:17 +00:00
Poul-Henning Kamp
0429e37ade struct mountlist and struct mount.mnt_list have no business being
a CIRCLEQ.  Change them to TAILQ_HEAD and TAILQ_ENTRY respectively.

This removes ugly  mp != (void*)&mountlist  comparisons.

Requested by:   phk
Submitted by:   Jake Burkholder jake@checker.org
PR:             14967
1999-11-20 10:00:46 +00:00
Poul-Henning Kamp
9c111b31ce A little bit of nitpicking in the 'syncing disks...' end of a shutdown. 1999-11-08 19:36:45 +00:00
Peter Wemm
d1f088dab5 Trim unused options (or #ifdef for undoc options).
Submitted by:	phk
1999-10-11 15:19:12 +00:00
Poul-Henning Kamp
c5b072197a Remove unneeded "maj" variable.
Give up if we have already started dumping once before.

Print name of dumpdev.
1999-08-29 14:54:11 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Bruce Evans
d918320517 Use devtoname() to print dev_t's instead of casting them to long or u_long
for misprinting in %lx format.
1999-08-23 20:35:21 +00:00
Mike Smith
fcb893a801 Implement a new generic mechanism for attaching handler functions to
events, in order to pave the way for removing a number of the ad-hoc
implementations currently in use.

Retire the at_shutdown family of functions and replace them with
new event handler lists.

Rework kern_shutdown.c to take greater advantage of the use of event
handlers.

Reviewed by:	green
1999-08-21 06:24:40 +00:00
Poul-Henning Kamp
7dc5cd047f The bdevsw() and cdevsw() are now identical, so kill the former. 1999-08-13 10:29:38 +00:00
Alfred Perlstein
59d5fe5a90 When doing a dump, if ENODEV is returned explain what happened to the user,
"the device doesn't support a dump routine"

Only print "dump succeeded" when 0 is returned, instead of when an unexpected
error number is returned, print that error number.

Reviewed by: Eivind
1999-08-11 14:02:20 +00:00
Poul-Henning Kamp
ce9edcf5b5 Merge the cons.c and cons.h to the best of my ability. alpha may or
may not compile, I can't test it.
1999-08-09 10:35:05 +00:00
Brian Feldman
fb30b5bdaf Make a dev2budev() function, and use it. This refixes pstat (working, broken,
working, broken, working) and savecore (working, working, broken, working,
working).

Sorta Reviewed by:	phk
1999-07-20 21:29:13 +00:00
Brian Feldman
240a86a432 dev2udev() returns a CDEV udev_t, but we use block io in savecore. Savecore
also gets the device by st_rdev, which is alright except for the fact that
the sysctl kern.dumpdev passed out a char device. This is a workaround.
Sorry for not committing the fix earlier, before people started having
problems.
1999-07-20 20:55:50 +00:00
Poul-Henning Kamp
f06a54f0a0 Centralize dumpdev handling. 1999-07-17 20:47:52 +00:00
Peter Wemm
b9dffbec61 Fix a warning - the code is correct but gcc can't tell. 1999-07-01 22:54:55 +00:00
Kirk McKusick
67812eacd7 Convert buffer locking from using the B_BUSY and B_WANTED flags to using
lockmgr locks. This commit should be functionally equivalent to the old
semantics. That is, all buffer locking is done with LK_EXCLUSIVE
requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will
be done in future commits.
1999-06-26 02:47:16 +00:00
Peter Wemm
ccb84588dd Try an fix a couple of dev_t/major/minor etc nits. 1999-05-12 22:30:50 +00:00
Poul-Henning Kamp
4be2eb8c49 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +00:00
Poul-Henning Kamp
46eede0058 Continue where Julian left off in July 1998:
Virtualize bdevsw[] from cdevsw.  bdevsw() is now an (inline)
        function.

        Join CDEV_MODULE and BDEV_MODULE to DEV_MODULE (please pay attention
        to the order of the cmaj/bmaj arguments!)

        Join CDEV_DRIVER_MODULE and BDEV_DRIVER_MODULE to DEV_DRIVER_MODULE
        (ditto!)

(Next step will be to convert all bdev dev_t's to cdev dev_t's
before they get to do any damage^H^H^H^H^H^Hwork in the kernel.)
1999-05-07 10:11:40 +00:00
Peter Wemm
dfd5dee1b0 Add sufficient braces to keep egcs happy about potentially ambiguous
if/else nesting.
1999-05-06 18:13:11 +00:00
Bill Fumerola
3d177f465a Add sysctl descriptions to many SYSCTL_XXXs
PR:		kern/11197
Submitted by:	Adrian Chadd <adrian@FreeBSD.org>
Reviewed by:	billf(spelling/style/minor nits)
Looked at by:	bde(style)
1999-05-03 23:57:32 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Mike Smith
5c40906f11 An error in the last commit; the changes were submitted by, not reviewed by,
"D. Rock" <rock@cs.uni-sb.de>
1999-01-30 19:29:10 +00:00
Mike Smith
db82a982a7 Add a new sysctl node kern.shutdown, off which shutdown-related things
can be hung.

Add a tunable delay at the beginning of the SHUTDOWN_FINAL at_shutdown
queue, allowing time to settle before we launch into the list of things
that are expected to turn the system off.

Fix a bug in at_shutdown_pri() where the second insertion always put
the item in second position in the queue.

Reviewed by:	"D. Rock" <rock@cs.uni-sb.de>
1999-01-30 19:28:30 +00:00
Mike Smith
9959b1a882 Improved DDB_UNATTENDED behaviour. From the submitter:
There's something that's been bugging me for a while, so I decided to fix it.
FreeBSD now will DTRT WRT DDB and DDB_UNATTENDED (!debugger_on_panic), at least
in my opinion. The behavior change is such that:

	1. Nothing changes when debugger_on_panic != 0.
	2. When DDB_UNATTENDED (!debugger_on_panic), if a panic occurs, the
		machine will reboot. Also, if a trap occurs, the machine will
		panic and reboot, unlike how it broke to DDB before. HOWEVER,
		a trap inside DDB will not cause a panic, allowing full use
		of DDB without having to worry about the machine being stuck
		at a DDB prompt if something goes wrong during the day.
		Patches for this behavior follow my signature, and it would
		be a boon to anyone (like me) who uses DDB_UNATTENDED, but
		actually wants the machine to panic on a trap (otherwise,
		what's the use, if the machine causes a fatal trap rather than
		a true panic, of debugger_on_panic?). The changes cause no
		adverse behavior, but do involve two symbols becoming global

Submitted by:	Brian Feldman <green@unixhelp.org>
1998-12-28 23:03:00 +00:00
Archie Cobbs
2127f26023 Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
Mike Smith
d02d6d040a Don't count non-local dirty buffers as outstanding when shutting down.
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>
1998-11-13 22:40:37 +00:00
Mike Smith
35d27a0f39 Add the ability to specify where on the at_shutdown queue a handler is
installed.

Remove cpu_power_down, and replace it with an entry at the end of the
SHUTDOWN_FINAL queue in the only place it's used (APM).

Submitted by:	Some ideas from Bruce Walter <walter@fortean.com>
1998-10-30 05:41:15 +00:00
Dmitrij Tejblum
a511bf18fe Fix precedence bug, so that kernel dump works. 1998-09-20 16:50:31 +00:00
Justin T. Gibbs
2cfa0a0381 Add a new at_shutdown queue, SHUTDOWN_FINAL. This queue is run at
splhigh() after any system dumps have completed.  SHUTDOWN_POST_SYNC
isn't quite late enough for disk controllers.

Converted at_shutdown queues to use the queue(3) macros.
1998-09-15 08:49:52 +00:00
Andrey A. Chernov
99237364cc Store formatted panic string in static buffer to make it available later
for savecore.
Previous code give only panic format to savecore
1998-09-06 06:25:18 +00:00
Dag-Erling Smørgrav
70d154a652 Don't check minor number of dump device at all.
Discussed-with: Jörg Wunsch
1998-08-23 14:18:08 +00:00
Dag-Erling Smørgrav
9103e8640c Include opt_devfs.h which defines SLICE, to make previous commit
meaningful.

Pointed out by:	Luoqi Chen
1998-08-19 20:20:52 +00:00
Dag-Erling Smørgrav
d08b9c139f Enable kernel dumps on SLICE systems. 1998-08-16 11:27:19 +00:00
Bruce Evans
ac1e407b32 Fixed printf format errors. 1998-07-11 07:46:16 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Tor Egge
2f1e70693d Add forwarding of roundrobin to other cpus. This gives a more regular
update of cpu usage as shown by top when one process is cpu bound
(no system calls) while the system is otherwise idle (except for top).

Don't attempt to switch to the BSP in boot().  If the system was idle when
an interrupt caused a panic, this won't work.  Instead, switch to the BSP
in cpu_reset.

Remove some spurious forward_statclock/forward_hardclock warnings.
1998-05-17 22:12:14 +00:00
Bruce Evans
b322fb5d76 Backed out previous commit. It is invalid to call d_ioctl() on
possibly non-open devices, and we don't want to restrict dumping
to swap devices anwyay.  It is especially invalid to call d_ioctl()
in non-process context for panics.  d_psize() can be called on
non-open devices, at least on non-SLICED ones that support d_dump(),
and setdumpdev() has depended on this for a long time although it
is probably wrong, but even d_psize() can't be called in non-process
context - that's why dumpsys() depends on previously computed values
although these values may be stale.  The historical restriction to
devices with dkpart(dev) == SWAP_PART should go away.
1998-05-12 17:34:02 +00:00
Julian Elischer
7f2f1b784e Add dump support to the DEVFS/slice code.
now we can actually catch our crashes :-)

Submitted by: Luoqi Chen <luoqi@chen.ml.org> (the man who's everywhere)
1998-05-06 22:14:48 +00:00
Julian Elischer
b1897c197c Reviewed by: dyson@freebsd.org (john Dyson), dg@root.com (david greenman)
Submitted by:	Kirk McKusick (mcKusick@mckusick.com)
Obtained from:  WHistle development tree
1998-03-08 09:59:44 +00:00
Eivind Eklund
d94f38ace2 Add HW_WDOG to LINT, and turn it into a new-style option. 1998-02-16 23:57:49 +00:00
Julian Elischer
95802bf803 Shift a few SYSINT() calls around.
this results in a few functions becoming static, and
the SYSINITs being close to the code they are related to.
setting up the dump device is with dumpsys() and
kicking off the scheduler is with the scheduler.
Mounting root is with the code that does it.

Reviewed by: phk
1997-11-25 07:07:48 +00:00
Bruce Evans
fc8f7066d2 Get buffer stuff by #including <sys/buf.h> instead of <sys/vnode.h>.
Staticized boot().

Fixed a gratuitous ANSIism.
1997-11-18 15:16:43 +00:00
Poul-Henning Kamp
cb226aaa62 Move the "retval" (3rd) parameter from all syscall functions and put
it in struct proc instead.

This fixes a boatload of compiler warning, and removes a lot of cruft
from the sources.

I have not removed the /*ARGSUSED*/, they will require some looking at.

libkvm, ps and other userland struct proc frobbing programs will need
recompiled.
1997-11-06 19:29:57 +00:00
Peter Wemm
279a69322c Cosmetic adjustment for the trap/double fault/panic cpu id listing.
It now prints the apic id in hex rather than decimal.
1997-09-05 08:54:55 +00:00
Bruce Evans
e4ba6a82b0 Removed unused #includes. 1997-09-02 20:06:59 +00:00
Bruce Evans
6d58e6cbc4 Fixed options SHOW_BUSYBUFS and PANIC_REBOOT_WAIT_TIME which were broken
by incomplete cutting and pasting from machdep.c to kern_shutdown.c.

PR:		3953
1997-08-31 23:08:38 +00:00
Peter Wemm
90bcb528a8 Correct some things I forgot about until it was too late with smp_active.
smp_active = 1 used to indicate that the system had frozen previously
started AP's, while smp_active = 0 was "AP's not yet started".  I have split
this into smp_started (which is set when the AP's come online), and
smp_active is left for turning on/off AP scheduling.
1997-08-26 18:36:15 +00:00