Linux and UNIX Man Pages

Test Your Knowledge in Computers #800
Difficulty: Medium
In the system with radix 13, for example, a string of digits such as 398 denotes the (decimal) number 632.
True or False?
Linux & Unix Commands - Search Man Pages

watchdog(8) [freebsd man page]

WATCHDOG(8)						    BSD System Manager's Manual 					       WATCHDOG(8)

watchdog -- watchdog control program SYNOPSIS
watchdog [-d] [-t timeout] DESCRIPTION
The watchdog utility can be used to control the kernel's watchdog facility. The -d option enables debugging. The -t timeout option specifies the desired timeout period in seconds, a value of zero will disable the watchdog. The default timeout is 128 seconds. SEE ALSO
watchdog(4), watchdogd(8), watchdog(9) HISTORY
The watchdog utility appeared in FreeBSD 5.1. AUTHORS
The watchdog utility and manual page were written by Sean Kelly <> and Poul-Henning Kamp <>. Some contributions made by Jeff Roberson <>. BSD
October 18, 2014 BSD

Check Out this Related Man Page

WATCHDOG(9)						   BSD Kernel Developer's Manual					       WATCHDOG(9)

watchdog -- software and hardware watchdog facility SYNOPSIS
#include <sys/watchdog.h> void watchdog_fn(void *private, u_int cmd, int *error); EVENTHANDLER_REGISTER(watchdog_list, watchdog_fn, private, 0); EVENTHANDLER_DEREGISTER(watchdog_list, eventhandler_tag); DESCRIPTION
To implement a watchdog in software or hardware, only a single function needs to be written and registered on the global watchdog_list. The function must examine the cmd argument and act on it as follows: If cmd is zero, the watchdog must be disabled and the error argument left untouched. If the watchdog cannot be disabled, the error argument must be set to EOPNOTSUPP. Else the watchdog should be reset and configured to a timeout of (1 << (cmd & WD_INTERVAL)) nanoseconds or larger and the error argument be set to zero to signal arming of a watchdog. If the watchdog cannot be configured to the proposed timeout, it must be disabled and the error argument left as is (to avoid hiding the arm- ing of another watchdog). There is no specification of what the watchdog should do when it times out, but a hardware reset or similar ``drastic but certain'' behaviour is recommended. SEE ALSO
watchdog(4) AUTHORS
The watchdog facility and this manual page was written Poul-Henning Kamp <>. BSD
February 28, 2004 BSD

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

WatchDog ReInit

Wath is this ?? eeE: WatchDog ReInitMemory 6 for board 0 WARNING: eeE: Allocb failure in ReInitMemory Only renit manualy is a solution. :confused: Help me please Tnks (2 Replies)
Discussion started by: RoMaGo
2 Replies

2. SCO

Watchdog Problem In Unix Server

My Unix Server with SCO Unix ver 5, display Watchdog error which reads, Watchdog ReInitMemory 6 for board 0 Warning : eeE : Allocb failure in ReInitMemory. My server has 98 dumb terminals connected. It has 5 Hard Disks (SCSI) of 9.1 GB each and 512 MB RAM. Uses RAID level 5 After this error... (1 Reply)
Discussion started by: V.V.KUMAR
1 Replies

3. UNIX for Advanced & Expert Users

Watchdog Problem In Unix Server

(1 Reply)
Discussion started by: V.V.KUMAR
1 Replies

4. Solaris

disabling watchdog

hi, is it possible to disable the "hardware watchdog" on a V240 sol 10 server? and how to? this server freeze 9/10 during boot on this command...:mad: thanks (3 Replies)
Discussion started by: guilik
3 Replies

5. Linux

Modprobe problem

I'm trying to get a watchdog module working on a server. (Watchdog timers are little hardware devices that reboot the system if it becomes unresponsive.) The module takes some options like the timeout til reboot, what power action to take, etc. I've set these options up in... (4 Replies)
Discussion started by: vertigo23
4 Replies

6. Solaris

Watchdog for process

Hi, is there something build in solaris that can act as "watchdog". I have some process (service) running (e.g. Rhino). It can happen that if freezes totaly so I need to find this out and restart it totaly. My vision is two possibilities. 1) there is some counter running and I will... (2 Replies)
Discussion started by: freeangel
2 Replies

7. Solaris

doubt reg Hardware watchdog enabled

Hi, Please let me know what is hardware watchdog enabled which we get when the solaris host is booting .As per my knowledge its the one states that the POST is enabled. correct me if am wrong. (1 Reply)
Discussion started by: rogerben
1 Replies

8. AIX

no watchdog notification

Hi All, I am getting pages from EMS(Event Monitoring Servers) for "no watchdog notification" I just wonder what cause this and what to look in the system. this error was generated from production lpar which hosts p570 Thanks Mann (4 Replies)
Discussion started by: chubby362002
4 Replies

9. Shell Programming and Scripting

Watchdog for a specific process trigger another process

Hi, I am willing to build a script that does a "ps-ef" or "top" on a specific process, and if it finds it running to start another process. Any suggestions to do this in a optimized way? Thanks! (2 Replies)
Discussion started by: liviusbr
2 Replies

Featured Tech Videos