On Thursday 18 October 2007 18:52, Takenori Nagano wrote:
> Vivek Goyal wrote:
> > > My stance is that _all_ the RAS tools (kdb, kgdb, nlkd, netdump, lkcd,
> > > crash, kdump etc.) should be using a common interface that safely puts
> > > the entire system in a stopped state and saves the state of each cpu.
> > > Then each tool can do what it likes, instead of every RAS tool doing
> > > its own thing and they all conflict with each other, which is why this
> > > thread started.
> > >
> > > It is not the kernel's job to decide which RAS tool runs first, second
> > > etc., it is the user's decision to set that policy. Different sites
> > > will want different orders, some will say "go straight to kdump", other
> > > sites will want to invoke a debugger first. Sites must be able to
> > > define that policy, but we hard code the policy into the kernel.
>
> I agreed with him and I made new notifier function that users can change
> the order. Priority value in notifier blocks are hardcoded. If users want
> to change list order, they have to rebuild kernel. I think it is very
> unhappy.
Is it possible to use a single bit of common code and a single
notifier for these things? Or is it too difficult?
One thing I'd suggest is not to use debugfs, if it is going to
be a useful end-user feature.
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