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SubjectRe: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is not enough ram for it
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On Tue, Jan 8, 2013 at 4:58 PM, Eric W. Biederman <ebiederm@xmission.com> wrote:

>
> So instead we need to say?
>
> + if (no_iotlb_memory)
> + panic("Cannot allocate SWIOTLB buffer");
> +
>
> Which is just making the panic a little later than it used to be and
> seems completely reasonable.

yes, looks some driver just use map_single without checking results.


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