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19 Commits

Author SHA1 Message Date
Ed Maste
f145c771fb Protect the watchdog daemon against swap OOM killer. This is similar to 
SVN r199804 which added protection to sshd, cron, syslogd, and inetd.
 2010-09-26 01:45:33 +00:00
Xin LI
d10d35b369 Staticify local variables. 
While I'm there also add a 'static' keyword for a function to make it
consistent with prototype.

Reviewed by:	phk
MFC after:	3 months
 2010-07-20 17:42:13 +00:00
Ed Schouten
10bc3a7f42 ANSIfy almost all applications that use WARNS=6. 
I was considering committing all these patches one by one, but as
discussed with brooks@, there is no need to do this. If we ever
need/want to merge these changes back, it is still possible to do this
per application.
 2009-12-29 22:53:27 +00:00
Ruslan Ermilov
c409ce41b4 Don't hide an error if the initial attempt to program a watchdog from 
within watchdogd(8) fails.  This is also consistent with watchdog(8).
 2009-12-21 15:50:37 +00:00
Nick Hibma
0f71a1cba6 Don't exit from watchdogd on receiving a signal if we cannot stop the watchdog. 
That'll require -KILL. This avoids resetting your system on one of the
watchdogs that you cannot disable.
 2006-12-15 22:47:36 +00:00
Poul-Henning Kamp
5c27253056 Fix usage(). 
Submitted by:	Adrian Steinmann <ast@marabu.ch>
 2006-03-06 07:42:52 +00:00
Poul-Henning Kamp
2a5f59b241 Report any errors we might see when disabling the watchdog. 
Complain about extra arguments so people don't get surprised
if they type "watchdog 0"
 2005-09-30 08:30:20 +00:00
Pawel Jakub Dawidek
8b28aef238 Pidfiles should be created with permission preventing users from opening 
them for reading. When user can open file for reading, he can also
flock(2) it, which can lead to confusions.

Pointed out by:	green
 2005-09-16 11:24:28 +00:00
Pawel Jakub Dawidek
0ea90af02e Use pidfile(3) in watchdogd(8). 2005-08-24 19:28:33 +00:00
Marius Strobl
bdd466ffca When disarming a watchdog by using an interval of WD_TO_NEVER a non-zero 
return value of the ioctl doesn't indicate that the command has failed
so don't let watchdog(8) return an error in this case.

MFC after:	3 days
 2005-03-19 01:46:37 +00:00
Brian Feldman
a693939e67 Disable memory locking that could keep watchdogd from deadlocking itself 
if the swap subsystem failed.

Requested by:	phk
 2004-07-28 22:13:04 +00:00
Brian Feldman
5e60838b5d Now that mlockall(2) is unbroken, use it to keep watchdogd(8) permanently 
out of swap.
 2004-07-23 15:24:57 +00:00
Sean Kelly
670c8a8ccd Bump the copyright year since I forgot last time. 2004-05-03 21:41:02 +00:00
Sean Kelly
459336c4d8 Update comments to reflect changes made by phk. Also no longer need 
<sys/sysctl.h>.
 2004-04-28 07:35:03 +00:00
Poul-Henning Kamp
4103b7652d Rename the WATCHDOG option to SW_WATCHDOG and make it use the 
generic watchdoc(9) interface.

Make watchdogd(8) perform as watchdog(8) as well, and make it
possible to specify a check command to run, timeout and sleep
periods.

Update watchdog(4) to talk about the generic interface and add
new watchdog(8) page.
 2004-02-28 20:56:35 +00:00
Sean Kelly
bc8b08782b o style(9) fixes 
- Reordered #includes
  - Only include <sys/types.h>, not it and <sys/cdefs.h>
o style.Makefile(5) fixes
  - No SRCS= line when only one src file with same name as program
o Use warn()/errx() instead of fprintf()
  - Integrated patch from Philippe Charnier <charnier@xp11.frmug.org>

Approved by:	jeff (mentor)
 2003-07-03 03:37:04 +00:00
Sean Kelly
055d177fb0 Unbreak this for alpha and friends. 
Double pointy hat to me, or something.
 2003-06-26 18:36:57 +00:00
Maxim Konovalov
e931de40e8 o Fix typo. 
Submitted by:	smkelly
 2003-06-26 11:24:10 +00:00
Sean Kelly
370c3cb57c - Add a software watchdog facility. 
This commit has two pieces. One half is the watchdog kernel code which lives
primarily in hardclock() in sys/kern/kern_clock.c. The other half is a userland
daemon which, when run, will keep the watchdog from firing while the userland
is intact and functioning.

Approved by:	jeff (mentor)
 2003-06-26 09:50:52 +00:00