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.
