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xen-devel
Re: [Xen-devel] xen_tlb_flush_all mfn validation panic
On 24/12/2009 15:06, "Kieran Mansley" <kmansley@xxxxxxxxxxxxxx> wrote:
> The initial "bad gmfn" message seems to be due to an attempt to validate
> the mfn argument to the mmuext_op. It's not surprising to me that this
> fails as xen_tlb_flush_all doesn't supply an mfn argument - it's not
> needed for the MMUEXT_TLB_FLUSH_ALL command. Is there something that is
> supposed to mean that the mfn argument should be valid even when not
> explicitly set by the caller, or is the validation of the mfn for all
> mmuext_op commands a bug?
The explicit check for INVALID_MFN is new, and that is obviously a bug. I
will sort out a suitable fix for this.
-- Keir
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