> > *I don't know of an easy way to record the information dumped from the > panic.* >
Best way would be to use the Serial Debug interface. Either that, or some complex remote debug / logging system. Just a quick thought though. Perhaps moving all log files to an NFS share ? On Fri, Sep 12, 2014 at 6:29 AM, Frank Hunleth < [email protected]> wrote: > Hi Brent, > > On Fri, Sep 12, 2014 at 12:52 AM, Brent <[email protected]> wrote: > > > > I figured out how to change the watchdog duration. The example program > is here: > > http://embeddedfreak.wordpress.com/2010/08/23/howto-use-linux-watchdog/ > > > > And a good description of the available commands is here: > > > https://github.com/shengchao/beaglebone-angstrom-xenomai/blob/master/Documentation/watchdog/watchdog-api.txt > > > > However, my first question regarding the kernel panic still remains. > Also, if I do get a kernel panic, how do I record the error message/code so > that I can debug it later? > > > > Regarding rebooting on a panic, take a look at sysctl(8) and > kernel.panic. You may also be interested in kernel.panic_on_oops: > > > https://github.com/torvalds/linux/blob/master/Documentation/sysctl/kernel.txt#L520 > > I don't know of an easy way to record the information dumped from the > panic. > > Frank > > > > > On Thursday, September 11, 2014 9:15:02 PM UTC-4, Brent wrote: > >> > >> Does anyone know that if the watchdog timer is enabled, will a kernel > panic still allow the watchdog to reset? Since it's not an external > watchdog, I wasn't sure what would happen. > >> > >> I've seen some cases where the kernel will panic and completely "brick" > my device until it is manually rebooted. I haven't had a chance to debug > why the kernel panics at what seems like random times, so I need to do some > investigation. However, my band-aid to the problem would be to enable the > watchdog timer so that it will automatically reboot. I would just try it, > but I'm having a hard time reproducing a kernel panic. > >> > >> Also, on a side note, how do you change the default duration of 60 > seconds? It seems like this info would be all over the internet, but I > haven't found anywhere that talks about this. > > > > -- > > For more options, visit http://beagleboard.org/discuss > > --- > > You received this message because you are subscribed to the Google > Groups "BeagleBoard" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
