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https://www.kernel.org/doc/html/latest/watchdog/index.html
Linux Watchdog Support. HPE iLO NMI Watchdog Driver; Mellanox watchdog drivers; Berkshire Products PC Watchdog Card; The Linux Watchdog driver API; The Linux WatchDog Timer Driver Core kernel API; WatchDog Module Parameters; The Linux WatchDog Timer Power Management Guide; WDT Watchdog Timer Interfaces For The Linux Operating System
https://www.suse.com/support/kb/doc/?id=7016880
How to load the correct watchdog kernel module. ... that only one software must access the watchdog timer. Some hardware vendors ship systems management software that use the watchdog for system resets. ... This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to ...
https://linuxhint.com/linux-kernel-watchdog-explained/
So avoid using live servers to test Linux kernel watchdog. Watchdog Module. Watchdog functionality on the hardware side sets up a timer that times out after a predetermined period. The watchdog software then periodically refreshes the hardware timer.
https://www.jann.cc/2013/02/02/linux_watchdog.html
The watchdog timer is initially disabled and set to count 4,294,967,295 milliseconds before generating a watchdog reset. The watchdog timer does not run when the chip is in its powered-down state. Therefore, there is no master/shadow register pairing for the watchdog timer, and it must be reprogrammed after cycling power or resetting the block.
https://how-to.fandom.com/wiki/How_to_configure_the_Linux_kernel/drivers/char/watchdog
Howto configure the Linux kernel / drivers / char / watchdog Watchdog device configuration Option: WATCHDOG Kernel Versions: 2.6.15.6 ... (on/off) Watchdog Timer Support If you say Y here (and to one of the following options) and create a character special file /dev/watchdog with major number 10...
https://en.wikipedia.org/wiki/Watchdog_timer
A watchdog timer (sometimes called a computer operating properly or COP timer, or simply a watchdog) is an electronic timer that is used to detect and recover from computer malfunctions. During normal operation, the computer regularly resets the watchdog timer to prevent it from elapsing, or "timing out".
https://patchwork.kernel.org/patch/8128261/
The WinSystems EBC-C384 has an onboard watchdog timer. The timeout range supported by the watchdog timer is 1 second to 255 minutes. Timeouts under 256 seconds have a 1 second granularity, while the rest have a 1 minute granularity. This driver adds watchdog timer support …
https://www.suse.com/support/kb/doc/?id=7008844
SLES server running on VMware ESX is hung and unable to get a kernel core for debugging. ... SLES server running on VMware ESX is hung and unable to get a kernel core for debugging ... (the kernel nmi watchdog driver doesn't find the same watchdog timer sources in a VMware ESX guest that it finds on a physical server so the watchdog timer ...
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.3_release_notes/chap-red_hat_enterprise_linux-7.3_release_notes-kernel_parameters_changes
Important Changes to External Kernel Parameters. ... extended context tables are supported if the hardware advertises that it has support both for the extended tables ... on the CPUs ability to respond to timer interrupts which are needed for the watchdog/N threads to be woken up by the watchdog timer function, otherwise the NMI ...
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