Messages in this thread | | | Date | Wed, 23 Apr 2008 08:32:33 -0400 | From | Vivek Goyal <> | Subject | Re: [PATCH 0/3] add new notifier function ,take4 |
| |
On Wed, Apr 23, 2008 at 08:11:19PM +0900, Takenori Nagano wrote: > Hi, > > changelog take3 -> take4 > > - Rebased 2.6.25-mm1 > - Add a document > - Add kdump on panic_notifier > > These patches add new notifier function and implement it to panic_notifier_list. > We used the hardcoded notifier chain so far, but it was not flexible. New > notifier is very flexible, because user can change a list of order by control files. > > And, third patch moves crash_kexec() to panic_notifier. It helps us to do > something before taking a crash dump. It's useful for some RAS tools developer.
Hi Takenori,
What's the "something" which you want to do after panic and before kdump. Can you please give a concrete example. We have talked about this quite a few times but nothing concrete has come out so far, except a generic statement that it helps "RAS tool developers".
The only thing we could think of was debuggers (kdb and kgdb) and one easy solution is that debuggers/users can put a break point at panic() instead of introducing this infrastructure.
Thanks Vivek
| |