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    Subject[PATCH 03/40] KVM: MMU: Report spte not found in rmap before BUG()
    Date
    In the past we've had errors of single-bit in the other two cases; the
    printk() may confirm it for the third case (many->many).

    Signed-off-by: Avi Kivity <avi@redhat.com>
    ---
    arch/x86/kvm/mmu.c | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
    index 89a49fb..4f499d7 100644
    --- a/arch/x86/kvm/mmu.c
    +++ b/arch/x86/kvm/mmu.c
    @@ -662,6 +662,7 @@ static void rmap_remove(struct kvm *kvm, u64 *spte)
    prev_desc = desc;
    desc = desc->more;
    }
    + pr_err("rmap_remove: %p %llx many->many\n", spte, *spte);
    BUG();
    }
    }
    --
    1.6.5.3


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