watchdogd stat location

[mike tancsa]

On 9/27/2019 3:19 PM, Oleksandr Rybalko wrote:
>
> пт, 27 вер. 2019 о 19:22 Warner Losh <imp at bsdimp.com
> <mailto:imp at bsdimp.com>> пише:
>
>     On Fri, Sep 27, 2019 at 9:36 AM mike tancsa <mike at sentex.net
>     <mailto:mike at sentex.net>> wrote:
>
>     > We sometimes run into an issue where our embedded devices that
>     boot off
>     > a read only SD card, hang with a controller error.  Its not clear if
>     > this is a BIOS/firmware/SDCard or driver bug issue. Its pretty
>     > infrequent, but annoying enough that I started to dig to see why
>     the box
>     > is not rebooting via the hardware watchdog.   It seems to fail
>     to reboot
>     > the box as the stat that it does on the filesystem is off the md
>     backed
>     > /etc which is not impacted.  I know I could run an external
>     program, but
>     > would it be safer to change the default directory where the stat
>     is done
>     > to something that is generally not mounted via ramdisk ?
>
>
> Why not just stat "/".
>
> I think embedded devices may have monolithic kernel w/o any loadable
> modules and book config.
>
I am all for that too. Just something other than /etc or /var which are
often mounted on ramdisk.

    ---Mike