* Takenori Nagano <[email protected]> [2007-08-14 10:48]:
> Bernhard Walle wrote:
> > * Takenori Nagano <[email protected]> [2007-08-14 10:34]:
> >> Vivek Goyal wrote:
> >>> On Fri, Aug 03, 2007 at 02:05:47PM +1000, Keith Owens wrote:
> >>>
> >>>
> >>> To sum up, couple of options come to mind.
> >>>
> >>> - Register all the RAS tools on die notifier and panic
> >>> notifier lists with fairly high priority. Export list
> >>> of RAS tools to user space and allow users to decide the
> >>> order of execution and priority of RAS tools.
> >>>
> >>> - Create a separate RAS tool notifier list (ras_tool_notifer_list).
> >>> All the RAS tools register on this list. This list gets priority
> >>> over die or panic notifier list. User decides the oder of execution
> >>> of RAS tools.
> >>>
> >>> Here assumption is that above list will not be exported to modules.
> >>> All the RAS tools will be in kernel and they always get a priority
> >>> to inspect an event.
> >>>
> >>> What do others think?
> >> Very good idea. But there is a problem how to give default priority to RAS tools.
> >>
> >> How about priority changeable notifier_list? User can change list order
> >> dynamically if they want. Of course, we have to give highest priority to kdump
> >> by default. It is very useful for users who want to use some RAS tools.
> >
> > I think that was the idea of the first “-” (“export list of RAS tools
> > to user space”).
>
> Ah, sorry.
>
> I think first idea is very good. How export the list? (sysfs? procfs?)
I think sysfs would be a good solution, e.g. assigning each RAS tool a
priority from 0 to 100 or something like this.
Thanks,
Bernhard
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