[dpdk-dev] [PATCH v2] eal/mem: preallocate VA space in no-huge mode

Thomas Monjalon thomas at monjalon.net
Thu Feb 6 16:39:47 CET 2020


24/01/2020 18:05, Anatoly Burakov:
> 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>

Applied, thanks





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