[RFC] Old paca being written by firmware after kexec

Anton Blanchard anton at samba.org
Fri Oct 7 12:11:29 EST 2005


 
Hi Michael,

> It seems to be writing into the word starting at paca[x].lppaca.reserved2, 
> which I guess it's allowed to do seeing as it's reserved.

Ouch! Nice work hunting this down. 

I think there is an unregister vpa hcall, for a clean kexec boot perhaps
we could have a shutdown method that calls this.

Anton



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