Commit Graph

44 Commits

Author SHA1 Message Date
hmp
380770fd3a 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
obrien
19105c8312 Use __FBSDID() to quiet GCC 3.3 warnings. 2003-05-03 18:41:59 +00:00
trhodes
136be46680 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
ru
fd0635a691 Improve wording even more. 2002-08-13 11:39:38 +00:00
dillon
20278d01b3 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
charnier
a2accd01f0 The .Nm utility 2002-07-06 19:34:18 +00:00
alfred
9605f078e0 unbreak build: include string.h for strcmp prototype. 2002-05-11 03:07:38 +00:00
trhodes
b2df921e69 Update dumpon manual page to explain single/multi-user usability
PR:	36465
No Objections from:	ru
2002-04-09 19:51:50 +00:00
phk
5b960672bf 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
phk
33405073ec 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
phk
e6623c74b8 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
imp
a9e66b0f19 o __P
o Strict ANSI declarations.
o return (foo);
o main (int, char *[])
2002-03-18 06:59:15 +00:00
sobomax
baadf3178a CG hard sentence breaks.
Submitted by:	ru
2002-01-23 09:35:55 +00:00
sobomax
e0c3aed12e Don't use `you'.
Submitted by:	ru
2002-01-22 21:11:18 +00:00
sobomax
4e0549db55 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
obrien
9baf2f1b03 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
n_hibma
9b2eb27d34 Typo. 2001-10-28 16:47:06 +00:00
dd
a145482cf6 Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
ru
7cef49ff86 mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 11:04:34 +00:00
dd
ef9ae51ffe Include missing header files which define functions for which gcc has
builtins (e.g., exit, strcmp).
2001-06-24 23:04:23 +00:00
ru
86642a4ab4 - Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:33:27 +00:00
ru
56b5d7535b Set the default manual section for sbin/ to 8. 2001-03-20 18:13:31 +00:00
ru
c23c39b3a4 mdoc(7) police: removed history info from the .Os FreeBSD call. 2000-12-14 11:52:05 +00:00
ru
ea31070695 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 16:52:27 +00:00
ben
0fc3455bb5 * 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
asmodai
ad6c7cc77b Remove unused #include. 2000-05-01 19:39:36 +00:00
sheldonh
5510bc1924 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
sheldonh
43fdfa4059 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
phk
3428629295 The dumpon sysctl only accept cdevs thse days.
Submitted by:	bde
2000-01-04 12:52:52 +00:00
ache
fbd62338d1 Accept both types of devices to work with older kernels too
Fix confusing message
1999-11-30 16:27:30 +00:00
phk
bd4a9519d9 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
76f0c923fe $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
jkoshy
dd902ec928 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
wosch
68cda92e4a Sort cross references. 1998-08-31 16:41:09 +00:00
charnier
9d674a7e98 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
jkoshy
eaddbc6267 Correct manual page, based on feedback from Bruce Evans.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-05-27 11:05:59 +00:00
jkoshy
e163105395 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
imp
167db52912 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
peter
4968036f61 Revert $FreeBSD$ to $Id$ 1997-02-22 14:40:44 +00:00
jkh
808a36ef65 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
mpp
b4aab8b6f6 Use the .Fx macro where appropriate. 1996-08-23 00:57:08 +00:00
mpp
69247d533f Fixed some minor formatting problems to silence manck some more.
Corrected some bogus cross references to man pages that we don't/won't
have and either deleted them, or found a more appropriate man page
that we do have.  Various other minor changes to silence manck.

Manck is currently down to about 200 lines of errors, down from
the 500 - 600+ when I started all this.
1996-02-12 01:20:38 +00:00
rgrimes
f3a2b348da Remove trailing whitespace. 1995-05-30 06:12:45 +00:00
wollman
56ee935a63 My utility to specify where you want crash dumps to go. More user
and kernel support to follow.
1995-05-12 19:10:09 +00:00