Re: [PATCH] Make LIST_POISON less deadly (v3)
From: Avi Kivity
Date: Tue May 20 2008 - 11:18:22 EST
Andi Kleen wrote:
Avi Kivity <avi@xxxxxxxxxxxx> writes:
+config ILLEGAL_POINTER_VALUE
+ hex
+ default 0 if X86_32
+ default 0xffffc10000000000 if X86_64
Don't make it exactly 0xffffc10000000000 but 0xffffc10000000000 + 0x1000000
or so, otherwise list_entry() users which subtract offsets would still
end up in user space and there might be actually something in there
by default.
The poison code adds a large offset (>1MB) so we're safe here.
--
error compiling committee.c: too many arguments to function
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