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cat /dev/watchdog reboots the system! | DNA of the TUX
https://tuxdna.wordpress.com/2010/10/11/cat-devwatchdog-reboots-the-system/
Oct 11, 2010 - I was surprized to find that following command reboots my Fedora 13 x86_64 system: cat /dev/watchdog Wait for around 30-50 seconds and Linux reboots! This happens even with a non-root user. Then I googled it I found this is a pretty interesting thread on the subject. Bottom line is It's a watchdog device, ...Tutorial - Using the BeagleBone Black Watchdog Timer - Logic Supply
https://www.logicsupply.com/.../io.../tutorial-using-beaglebone-black-watchdog-timer/
Aug 28, 2014 - cat > /dev/watchdog. Wait about 60 seconds and your BeagleBone will reset and reboot. On the other hand, if you issue the command again, before the timer has elapsed, the reset will be delayed further. These simple steps will help you test the watchdog timer. NOTE: The watchdog is enabled once you ...cat /dev/watchdog reboots the system! · Saleem Ansari
tuxdna.in/2010/10/11/cat-/dev/watchdog-reboots-the-system/
Oct 11, 2010 - I was surprized to find that following command reboots my Fedora 13 x86_64 system: cat /dev/watchdog. Wait for around 30-50 seconds and Linux reboots! This happens even with a non-root user. Then I googled it. I found this is a pretty interesting thread on the subject. Bottom line is. It's a watchdog device ...Does anyone knows how to use "hardware reset watchdog" - Olimex
https://www.olimex.com/forum/index.php?topic=142.0
Oct 10, 2012 - I tried: (*(volatile unsigned int __attribute__((force)) *) (0x8005C050) )=(unsigned short)(10); and I got a segmentation fault :( . I also read some lines about /dev/watchdog.h, /dev/watchdog, accidently rebooted my system / Newbie ...
https://bbs.archlinux.org › Newbie Corner
Dec 4, 2010 - 7 posts - ‎5 authors
Attempt 1. [root@fubar /]# echo /dev/watchdog /dev/watchdog [root@fubar /]# cat /bacondropped (cat /dev/watchdog) · GitHub
https://github.com/bacondropped
bacondropped has 2 repositories available. Follow their code on GitHub.Support | How to load the correct watchdog kernel module - Novell
https://www.novell.com/support/kb/doc.php?id=7016880
Oct 5, 2015 - File systems will get unclean. Do not do this on a productive system: # echo "do not do this on a productive system:" # echo "cat /dev/watchdog" Online documentation https://www.suse.com/documentation/sle_ha/book_sleha/data/embedded linux - AM335x watchdog does not work - Stack Overflow
https://stackoverflow.com/questions/23126900/am335x-watchdog-does-not-work
Apr 17, 2014 - Ok, I've found the solution on my own. As clearly told here, the file /dev/watchdog must be kept open for allowing the watchdog to fire... then the right command for causing the watchdog fire is: cat > /dev/watchdog. and then type 0: after 60 seconds the board will reboot.Testing the Intel TCO watchdog using Ubuntu live - madore.org
www.madore.org/~david/linux/iTCO-wdt-test.html
Sep 14, 2016 - cat >> /dev/watchdog. and press enter twice. This will cause the watchdog to start counting down. The prompt will not return (do not press control - c nor control - d )linux - Is a hardware watchdog already active at my CentOS server ...
https://serverfault.com/.../is-a-hardware-watchdog-already-active-at-my-centos-server
Aug 26, 2013 - Ready for a reboot? | tee -a /var/log/watchdog-test.log; sync echo *todo* force a quicker timeout? *todo* read kernel source cat /dev/watchdog & test=$! sleep 0.5 [ -e /proc/$test ] && { sleep 63; kill $test; }; fi rmmod $dog echo $dog Didn't work, we're still here... | tee -a /var/log/watchdog-test.log; sync done.