Messages in this thread | | | Date | Mon, 19 May 2008 16:35:05 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH] Make LIST_POISON less deadly |
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Ingo Molnar wrote: > * Avi Kivity <avi@qumranet.com> wrote: > > >>> i'd suggest to add an ARCH_ILLEGAL_POINTER define instead, which >>> defaults to zero and gets added to pointer-ish poison values. That >>> makes it both simpler and also it does not need any include/asm >>> changes because ARCH_ILLEGAL_POINTER can be set from the Kconfig >>> space. >>> >> Right. >> >> How much unmapped space do we have on i386 or other archs? The deltas >> added to ARCH_ILLEGAL_POINTER will have to be limited to that. >> > > can we get away with having the offset default to zero, and all poison > values remain unchanged if that? Then 64-bit x86 could just set the > offset to 2^63 and we wont have to worry about 32-bit x86 at all ... > > i.e. start small with this and only have an effect on 64-bit x86. >
Sure, will post an updated patch.
-- error compiling committee.c: too many arguments to function
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