Commit Graph

56 Commits

Author SHA1 Message Date
Paul Saab
ce893772bd With minidumps, the dumping partition could be smaller than physical
memory, so checking the size of the partition is not necessary.

Tested by:	kris
2006-04-27 19:01:54 +00:00
Kris Kennaway
3676d4b6e2 It has not been possible to specify a dumpdev in loader.conf since 2002,
so don't raise false hopes here.
2006-02-27 00:15:53 +00:00
Pav Lucistnik
62aedb0446 - Mention the size of the additional header
PR:		docs/85867
Submitted by:	dinoex
MFC after:	1 week
2006-01-07 19:17:13 +00:00
Ruslan Ermilov
6087df9e8b Sort sections. 2005-01-18 10:09:38 +00:00
Dag-Erling Smørgrav
9872f15d75 Promote mediasize and physmem to uintmax_t when comparing them. 2004-10-04 06:54:19 +00:00
Dag-Erling Smørgrav
53504142a9 Whitespace nit. 2004-10-03 23:53:54 +00:00
Dag-Erling Smørgrav
9f4ed0f59b dumpon builds cleanly at WARNS level 6. 2004-10-03 23:39:14 +00:00
Dag-Erling Smørgrav
c0046e261f Verify that the specified device is at least as large as hw.physmem. 2004-10-03 23:38:49 +00:00
Dag-Erling Smørgrav
842ddc99ec Wrap some long lines (no content changes) 2004-10-03 23:35:34 +00:00
Maxim Konovalov
b705040954 `off' is a keyword, not a parameter name.
Obtained from:	DragonFly
2004-07-18 09:57:47 +00:00
Mark Murray
4c723140a4 Remove advertising clause from University of California Regent's license,
per letter dated July 22, 1999.

Approved by: core, imp
2004-04-09 19:58:40 +00:00
Johan Karlsson
604d24db95 style.Makefile(5):
Use WARNS?= instead of WARNS=.
2004-02-23 20:25:27 +00:00
Hiten Pandya
8340d5bcae Bring the dumpon(8) man page closer to reality:
- dumpon utility has not used kern.dumpdev sysctl
      since rev. 1.14 (sbin/dumpon/dumpon.c) when phk@
      updated it to use the DIOCSKERNELDUMP ioctl [1]
    - remove obsolete reference to sysctl(3)

While I am there, fix two style nits:

    - use .Nm instead of `dumpon'
    - change NOTES to IMPLEMENTATION NOTES, to bring
      it in line with recommended section headings in
      mdoc(7)

Original patch by: Martin Faxer <gmh003532brfmasthugget.se> [1]

PR: docs/39293
Approved and Reviewed by: des (mentor), re (scottl, bmah)
2003-05-07 19:37:51 +00:00
David E. O'Brien
c69284ca08 Use __FBSDID() to quiet GCC 3.3 warnings. 2003-05-03 18:41:59 +00:00
Tom Rhodes
ce66ddb763 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
Ruslan Ermilov
80c9c8be99 Improve wording even more. 2002-08-13 11:39:38 +00:00
Matthew Dillon
6ff8114c79 Replace the 'at least the amount of physical memory + 64K' with a better
explanation in regards to sizing the dump device.
2002-07-09 17:27:08 +00:00
Philippe Charnier
e1205e80e5 The .Nm utility 2002-07-06 19:34:18 +00:00
Alfred Perlstein
4a21733e2d unbreak build: include string.h for strcmp prototype. 2002-05-11 03:07:38 +00:00
Tom Rhodes
0042d709b8 Update dumpon manual page to explain single/multi-user usability
PR:	36465
No Objections from:	ru
2002-04-09 19:51:50 +00:00
Poul-Henning Kamp
7f086a0852 Rename DIOCGKERNELDUMP to DIOCSKERNELDUMP as it strictly speaking
is a "set" not a "get" operation.

Sponsored by:	DARPA & NAI Labs.
2002-04-09 10:04:09 +00:00
Poul-Henning Kamp
2dd527b3ac Move generic disk ioctls from <sys/disklabel.h> to <sys/disk.h>.
Sponsored by:	DARPA & NAI Labs
2002-04-08 09:20:07 +00:00
Poul-Henning Kamp
9e9c1cad4c Here follows the new kernel dumping infrastructure.
Caveats:

The new savecore program is not complete in the sense that it emulates
enough of the old savecores features to do the job, but implements none
of the options yet.

I would appreciate if a userland hacker could help me out getting savecore
to do what we want it to do from a users point of view, compression,
email-notification, space reservation etc etc.  (send me email if
you are interested).

Currently, savecore will scan all devices marked as "swap" or "dump" in
/etc/fstab _or_ any devices specified on the command-line.

All architectures but i386 lack an implementation of dumpsys(), but
looking at the i386 version it should be trivial for anybody familiar
with the platform(s) to provide this function.

Documentation is quite sparse at this time, more to come.

Sponsored by:   DARPA, NAI Labs

Details:

Dumpon now opens the device and uses ioctl(DIOCGKERNELDUMP) to set it
to be the dumpdevice.  When "off" is set, /dev/null is used.
2002-03-31 22:24:24 +00:00
Warner Losh
d1a939c146 o __P
o Strict ANSI declarations.
o return (foo);
o main (int, char *[])
2002-03-18 06:59:15 +00:00
Maxim Sobolev
21367f05ab CG hard sentence breaks.
Submitted by:	ru
2002-01-23 09:35:55 +00:00
Maxim Sobolev
65ab9c78a3 Don't use `you'.
Submitted by:	ru
2002-01-22 21:11:18 +00:00
Maxim Sobolev
dcd7d9b7b7 Allow dump device be configured as early as possible using loader(8) tunable.
This allows obtaining crash dumps from the panics occured during late stages
of kernel initialisation before system enters into single-user mode.

MFC after:	2 weeks
2002-01-21 01:16:11 +00:00
David E. O'Brien
2d68bf45bf Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by:	mike
2001-12-04 02:19:58 +00:00
Nick Hibma
76c83512ef Typo. 2001-10-28 16:47:06 +00:00
Dima Dorfman
7ebcc426ef Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
Ruslan Ermilov
9fe48c6e8d mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 11:04:34 +00:00
Dima Dorfman
cafefe8c1b Include missing header files which define functions for which gcc has
builtins (e.g., exit, strcmp).
2001-06-24 23:04:23 +00:00
Ruslan Ermilov
0a5779d45b - Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:33:27 +00:00
Ruslan Ermilov
fe655281c5 Set the default manual section for sbin/ to 8. 2001-03-20 18:13:31 +00:00
Ruslan Ermilov
ed40311694 mdoc(7) police: removed history info from the .Os FreeBSD call. 2000-12-14 11:52:05 +00:00
Ruslan Ermilov
7c7fb079b9 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 16:52:27 +00:00
Ben Smithurst
d9a9b8dbb6 * Clarify text on choosing a dump device
* Remove the text which states only devices with minor number 1 can be used
  - this is no longer true.
* Mention that dumpon(8) cannot be used to capture dumps from panics during
  kernel initialization.
* /dev/wd -> /dev/ad

PR:		19848
Submitted by:	Udo Erdelhoff <ue@nathan.ruhr.de>
Reviewed by:	sheldonh
2000-07-14 18:04:39 +00:00
Jeroen Ruigrok van der Werven
219f5cc47b Remove unused #include. 2000-05-01 19:39:36 +00:00
Sheldon Hearn
fd5075e5c6 Back out the new advice introduced in the previous commit, which at
least one reviewer is now unhappy with, since it contains incomplete
and misleading advice that is not easy to correct.

The net effect of this commit and the previous commit is to simply
remove all discussion of setting dumpdev to catch crash dumps
prior to entering user mode.
2000-03-28 15:54:32 +00:00
Sheldon Hearn
df586e923b Update instructions for setting the dump device prior to multi-user
mode.

Reported by:	dcs
Submitted by:	asmodai
2000-03-28 09:32:38 +00:00
Poul-Henning Kamp
9f68791143 The dumpon sysctl only accept cdevs thse days.
Submitted by:	bde
2000-01-04 12:52:52 +00:00
Andrey A. Chernov
c34957baa7 Accept both types of devices to work with older kernels too
Fix confusing message
1999-11-30 16:27:30 +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
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Joseph Koshy
25c0391524 Use current names for swap devices.
PR:		docs/11708
Submitted by:	Matthew D. Fuller <fullermd@over-yonder.net>
1999-05-17 05:23:17 +00:00
Wolfram Schneider
acd8019083 Sort cross references. 1998-08-31 16:41:09 +00:00
Philippe Charnier
8f034b11f2 Capitalize at the start of sentence. Add rcsid. Remove unused #includes.
Use `dumpon' instead of argv[0].
1998-06-15 07:03:47 +00:00
Joseph Koshy
e44af4db8d Correct manual page, based on feedback from Bruce Evans.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-05-27 11:05:59 +00:00
Joseph Koshy
bb556bcf30 Manual page fix: add cross references, refer to ``dumpdev'' variable in
"/etc/rc.conf".

PR: 6117
Submitted by: Mark Mayo <mark@vmunix.com>
1998-05-25 08:54:40 +00:00
Warner Losh
8d64695c7c compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.
1997-03-29 03:33:12 +00:00