[RFC/PATCH] powerpc: Fix kdump EOI bug (often exhibits as dead console)

Michael Ellerman michael at ellerman.id.au
Tue Mar 14 15:18:32 EST 2006

On Tue, 14 Mar 2006 02:59, Milton Miller wrote:
> What we are doing here is a possibly extranious, third party EOI
> (device X interrupted cpu Y, and cpu Z is issuing the EOI to allow the
> device to reissue the interrupt).  For real XICS I know that is both
> possible and safe as long as the interrupt X exists; I am familiar with
> the hardware implementation.

I'll take your word for it ;)

I've tested on virtual xics that if we take the interrupt on Y and EOI on Z 
then it works just fine.


Michael Ellerman
IBM OzLabs

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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