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| author | Eric Dumazet <edumazet@google.com> | 2017-08-30 00:16:01 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-30 01:10:50 +0200 |
| commit | eaa72dc47488d599439cd0fd0f8c4f1bcb3906bb (patch) | |
| tree | d35829277414b465b199dcada5af2e70f6183533 /firmware/README.AddingFirmware | |
| parent | net: remove dmaengine.h inclusion from netdevice.h (diff) | |
| download | linux-eaa72dc47488d599439cd0fd0f8c4f1bcb3906bb.tar.xz linux-eaa72dc47488d599439cd0fd0f8c4f1bcb3906bb.zip | |
neigh: increase queue_len_bytes to match wmem_default
Florian reported UDP xmit drops that could be root caused to the
too small neigh limit.
Current limit is 64 KB, meaning that even a single UDP socket would hit
it, since its default sk_sndbuf comes from net.core.wmem_default
(~212992 bytes on 64bit arches).
Once ARP/ND resolution is in progress, we should allow a little more
packets to be queued, at least for one producer.
Once neigh arp_queue is filled, a rogue socket should hit its sk_sndbuf
limit and either block in sendmsg() or return -EAGAIN.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'firmware/README.AddingFirmware')
0 files changed, 0 insertions, 0 deletions