Re: Fix race in the accessed/dirty bit handlers

From: Zoltan Menyhart <Zoltan.Menyhart_at_bull.net>
Date: 2006-03-10 21:40:18
Christian Hildner wrote:
> Zoltan Menyhart schrieb:
> 
>> The only instruction I know of to synchronize with the "itc" mechanism is
>> the "srlz" instruction. 
> 
> 
> rfi implies srlz.i (and srlz.d) as well.

You are right as far as the user mode code is concerned.

Yet, we have not got any "rfi" in our

    insert TLB
    ;;
    re-read

sequence. Only a "srlz" can help.:

	itc.d	r25
	;;
	srlz.d
	ld8	r18 = [r17]

Thanks,

Zoltan
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Received on Fri Mar 10 21:40:57 2006

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