[ovs-dev] [PATCH] netdev-afxdp: Update memory locking limits unconditionally.
u9012063 at gmail.com
Fri Oct 11 16:13:56 UTC 2019
On Fri, Oct 11, 2019 at 01:17:59PM +0200, Ilya Maximets wrote:
> On 10.10.2019 20:29, William Tu wrote:
> >On Wed, Oct 09, 2019 at 04:23:31PM +0200, Ilya Maximets wrote:
> >>Any type of AF_XDP socket in all modes implies creation of BPF map of
> >>type BPF_MAP_TYPE_XSKMAP. This leads to BPF_MAP_CREATE syscall and
> >>subsequently 'xsk_map_alloc()' function that will charge required
> >>memory from the memlock limit and fail with EPERM if we're trying
> >>to allocate more.
> >>On my system with 64K bytes of max locked memory by default, OVS
> >>frequently starts to fail after addition of 3rd afxdp port in SKB
> >> netdev_afxdp|ERR|xsk_socket__create failed (Operation not permitted)
> >> mode: SKB qid: 0
> >>Fixes: 0de1b425962d ("netdev-afxdp: add new netdev type for AF_XDP.")
> >>Signed-off-by: Ilya Maximets <i.maximets at ovn.org>
> >Good catch!
> >I applied to master.
> This also needs to be backported to 2.12.
> Best regards, Ilya Maximets.
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