[dpdk-stable] [PATCH v3] eal/mem: preallocate VA space in no-huge mode

[David Marchand]

On Fri, Feb 7, 2020 at 12:11 PM Anatoly Burakov
<anatoly.burakov at intel.com> wrote:
>
> When --no-huge mode is used, the memory is currently allocated with
> mmap(NULL, ...). This is fine in most cases, but can fail in cases
> where DPDK is run on a machine with an IOMMU that is of more limited
> address width than that of a VA, because we're not specifying the
> address hint for mmap() call.
>
> Fix it by preallocating VA space before mapping it.
>
> Cc: stable at dpdk.org
>
> Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>

Reproduced issue reported by Thomas on v2.
Works fine with v3.

Tested-by: David Marchand <david.marchand at redhat.com>


Does this issue affect FreeBSD too?

-- 
David Marchand