gptzfsboot error using HP Smart Array P410i Controller

John Baldwin jhb at
Thu Aug 18 22:20:17 UTC 2011

On Thursday, August 18, 2011 1:49:18 pm Christoph Hoffmann wrote:
> John, 
> Unfortunately not, as we is still need 4 additional instructions or some 
sort of memory 
> barrier [ like mb() in Tru64 :) ] .

Well, x86 CPUs generally don't need memory barriers assuming the compiler
hasn't done something invalid, especially for opertions that are only on a 
single CPU.  However, if the compiler was broken presumably zfsboot would be 
broken everywhere.

John Baldwin

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