Re: hangcheck_reboot=1

On Jul 26, 11:08 am, oracle_man <oracle_..._at_yahoo.com> wrote:
> All,
>
> I have done a number of RAC installs on various Linux/Unix flavors.
> I have recently come across an install done by Oracle Consulting
> Services in which the person building the RAC added the following to /
> etc/modprobe.conf
>
> options hangcheck_timer hangcheck_reboot=1
>
> This build was on a RHEL4 2.6.9-55.ELsmp kernel. I don't recall
> seeing this particular mod in the install guide for 10.2.0.x RAC on
> Linux. The only hangcheck references in the install guides and notes
> out on the web are for doing something similar to the following to
> start the module located in the directories of the current kernel
> version:
>
> # insmod /lib/modules/<kernel_version>/kernel/drivers/char/hangcheck-
> timer.ko
> hangcheck_tick=30 hangcheck_margin=180
>
> In the preceding command example, the variable kernel_version is the
> kernel
> version running on your system.
>
> My question is: Why did the Oracle consultant add this: "options
> hangcheck_timer hangcheck_reboot=1" to /etc/modprobe.conf?
>
> Cheers,
>
> Rich

It's documented on Metalink; search for hangcheck_reboot=1.

David Fitzjarrell Received on Thu Jul 26 2007 - 11:22:31 CDT