Messages in this thread | | | Subject | Re: [PATCH] x86: mce: Xeon75xx specific interface to get corrected memory error information v2 | From | Andi Kleen <> | Date | Mon, 29 Mar 2010 12:55:14 +0200 |
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Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> writes:
> I have some questions: Is it impossible to get the address > after polling handler have processed? e.g. Is it possible to > implement this module as mcelog's add-on that hooked & invoked > immediately after reading /dev/mcelog? I guess there are > some limitation/restriction to call pfa_command().
You need to be in ring 0. In theory you could do it later, but then you risk losing the address if there is another error.
> Are there any alternative way to get the address?
No.
> Polling like edac_i7 doesn't help this?
No.
> > You pointed "This makes it impossible to do predictive failure > analysis", but I guess we could do rough-but-enough analysis that > requires coarse resolution like sockets. Or we should not expect
The main predictive failure analysis interesting here is bad page offlining and for that you need an address.
-Andi
-- ak@linux.intel.com -- Speaking for myself only.
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