On 07/03/2010 01:44 AM, Marcelo Tosatti wrote:
Config entry:
[access]
file = access.flat
Massive log, compressed and attached.
run
test pde.p user: FAIL: error code 5 expected 4
test pte.rw pde.p user: FAIL: error code 5 expected 4
test pte.user pde.p user: FAIL: error code 5 expected 4
test pte.rw pte.user pde.p user: FAIL: error code 5 expected 4
test pte.a pde.p user: FAIL: error code 5 expected 4
test pte.rw pte.a pde.p user: FAIL: error code 5 expected 4
test pte.user pte.a pde.p user: FAIL: error code 5 expected 4
P flag (bit 0).
This flag is 0 if there is no valid translation for the linear address
because the P
flag was 0 in one of the paging-structure entries used to translate that
address.
Avi, a walk ignoring access permissions should be done to properly set
the P flag on error code. Does anybody care?
Probably not, but best to be compatible with real hardware.
We could simply continue the existing walk, just set a flag indicating
that it can't succeed.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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