Hi, On Wed, Aug 12, 2015 at 8:45 PM, Martin KaFai Lau <ka...@fb.com> wrote: > On Mon, Aug 10, 2015 at 02:35:37PM -0400, Neal Cardwell wrote: >> On Mon, Aug 10, 2015 at 2:10 PM, Jovi Zhangwei <j...@cloudflare.com> wrote: >> > >> > Ping? >> > >> > We saw a lot of this warnings in our production system. It would be >> > great appreciate if someone can give us the fix on this warnings. :) >> >> What is your net.ipv4.tcp_mtu_probing setting? If 1, have you tried >> setting it to 0? > > Hi Jovi, If setting net.ipv4.tcp_mtu_probing=0 helps, can you give the > patch we posted earlier a try: https://patchwork.ozlabs.org/patch/481609/ > It is the same patch that I pointed out earlier. You can click > on the download link. > > We are currently using a similar patch while keeping > net.ipv4.tcp_mtu_probing=1. > Our system need net.ipv4.tcp_mtu_probing, so we cannot set it to 0. We are testing previous patch given by Neal, I will let you know the result.
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