a watchdog timer is a simple, low-level electronic timer to detect faults in program execution and recover from malfunction, usually by rebooting the system.

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94 views

Restart Pi if not reachable (3G)

My Pi 2 is uses a USB Modem 3G connection. Sometimes the connection gets stuck and the Pi is no longer reachable via SSH, (Weaved). The Pi itself looks normal, ( the Pi is on and the light on USB ...
2
votes
3answers
800 views

FATAL: Module bcm2708_wdog not found

I would like to install watchdog timer on Raspbian Wheezy, but when I execute: sudo modprobe bcm2708_wdog I get: FATAL: Module bcm2708_wdog not found. uname -a Linux raspberrypi 4.4.7-v7+ #878 ...
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0answers
70 views

how to setup watchdog on a shell script

I am running a shell script which runs a GUI based python script on startup, the program hangs after 6-12 hours or sometimes it hangs after 2-3 days, but the PI works fine. To restart the program I ...
0
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0answers
78 views

When testing watchdog, RPI freezes. Why?

I installed the latest version of Jessie done to update and upgrade. I then performed according to the manual settings watchdog. $ sudo modprobe bcm2708_wdog $ sudo sh -c "echo 'bcm2708_wdog' >>...
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0answers
26 views

How to use internal Watchdog for checking shell program running on startup?

I am running a GUI based shell script on startup, my program is eating memory. The program hangs but PI is working fine, sometimes program hangs after 6-12 hours or sometimes it hangs after 2-3 days. ...
2
votes
1answer
107 views

Create a watchdog for RPi using Arduino

I have a RPi 2 and my circuit involves an Arduino connected to it using Logic level converter. I want my Arduino to act as a watchdog for Pi that will receive a signal timely from Pi and if not ...
1
vote
1answer
597 views

Raspbian watchdog fails at boot

I have a raspberry pi 2 with original power supply (5v 2a) from farnell with raspbian. Tried more than 4 sd cards (lexar class 10, kingston class 8, trasncendet class 10) connected to the router via ...
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1answer
2k views

Pi B, Raspbian Jessie. Watchdog doesn't start at boot

After upgrading to Jessie, watchdog doesn't start at boot anymore. Starting it manually using "sudo service watchdog start" does work. I tried: purging and reinstalling watchdog update-rc.d I ...
1
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1answer
380 views

B+ Pi hangs what watchdog settings do I need?

This has been going on for a while. Raspbian B+ regularly updated and kernel updated, nothing connected other than Ethernet cable and power supply is Pi rated(from ModMyPi with a ModMyPi noodle cable)...
2
votes
1answer
230 views

rPi B+ Arch Linux running Java application

My customer's java app - .jar file runs on rPi B+ with ArchLinux installed. Now, I've also enabled hardware watchdog timer which purpose is to reboot rPi when java app hangs. Now, I've configured the ...
3
votes
2answers
631 views

Best practices for “hardening” an RPi for embedded applications (unattended operation)?

This is a very general question, but I'm sure others will want to know the answer... I'm using headless RPi's for a remote monitoring application. These RPi's will be buried in utility closets and ...
1
vote
1answer
697 views

Using Watchdog to reboot in case of overheat

Is it possible to use Watchdog to reboot the Raspberry Pi in case of overheating? I tried making Watchdog read the temperature from /sys/class/thermal/thermal_zone0/temp but so far no such luck. Can ...
2
votes
2answers
810 views

Raspberry Pi Reboot Cycle After SD Clone - Card works on old Pi but not new ones

I have a Raspberry Pi which runs a Python script on boot. They initiate and stroke the hardware watchdog at /dev/watchdog. I recently tried cloning the SD card onto two other SD cards. However on ...
13
votes
1answer
485 views

How can I mitigate the need for manual intervention with remotely deployed Raspberry Pis?

I'm working on a project that makes use of Raspberry Pis which will be deployed to several locations. They have special hardware attached to it for automation purposes, and run a web-service (that I ...
1
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3answers
1k views

Watchdog timer waking-up Pi after shutdown

I would need the Watchdog timer of the Pi to kiss the halted Pi awake to make it boot again. I know about the Watchdog timer limitations, and that it should not be able to do it, but I have seen ...
3
votes
2answers
6k views

mmc0: Timeout waiting for hardware interrupt trigger watchdog

During a strong file I/O application, the Pi regular crashes. mmc0: Timeout waiting for hardware interrupt - cmd25. mmc0: Timeout waiting for hardware interrupt - cmd12. mmc0: Timeout waiting for ...
0
votes
1answer
972 views

Can't edit /etc/modules and add “bcm2708_wdog”

i tried following the directions here for the watchdog Link: http://pi.gadgetoid.co.uk/post/001-who-watches-the-watcher i can't get even past the first attempt, here's an SS: http://prntscr.com/ohvq1 ...
5
votes
3answers
4k views

WatchDog Daemon not restarting PI after fork bomb

I have tried to run the WatchDog Daemon using the tutorial found at http://binerry.de/post/28263824530/raspberry-pi-watchdog-timer So basic process I ran through to get WatchDog up and running is: 1....
4
votes
1answer
359 views

How do I get hardware Watch Dog working in soft-float Wheezy?

I have moved from the beta Wheezy release to the final release currently on the official download page (2012-08-08-wheezy-armel.zip). The hardware watch dog no longer seems to work. I have tried ...
10
votes
1answer
3k views

Can I send a heart beat to hardware watch dog from my own program?

Following on from the question and excellent answer provided by Steve Robillard here: How do I hard reset a Raspberry Pi How can I send a heartbeat signal from my own program to the BCM2708's ...
41
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3answers
31k views

How do I hard reset a Raspberry Pi?

How do I hard reset a Raspberry Pi? Obviously you can power cycle, but is there a more subtle way, like a reset pin? It would be very useful to connect a watchdog in case the Raspberry Pi crashes (...