![]() ![]() Our side (client) is 5.17.1 (side that initiates TCP/IP connection), I > Can you please share the exact kernel version of the client machine? Original commit (8919a9b31eb4) felt the need to set an explicit 0 in then again tcp_init_socket mentionsĮxplicitly that sk_alloc set lots of stuff to 0 - still bugs me that the To 1 in tcp_init_congestion_control() - so I think we might have an The only other place this gets set to 0 is in tcp_disconnect(). ![]() Just looking at the diff it removes a icsk->icsk_ca_initialized = 0. Tcp: fix tcp_init_transfer() to not reset icsk_ca_initialized I'm guessing the issue possibly relates to congestionĬontrol, as such this is probably the most relevant:Ĭommit be5d1b61a2ad28c7e57fe8bfa277373e8ecffcdc This, just looking at changelogs I'm not sure if any of them are In the kernel sources: git log v5.8.v5.17 net/Īnd searching for TFO only gives so many possible commits that broke Managed to flood out about 1200 emails to google in a matter of no more The moment I set sysctl -w _fastopen=0 (default is 1) I've The working connections never had the latter line in the output. On a hunch (based on comparing the exim logs of a successful deliveryĬompared to a non-successful) and the only difference was that the I don't know how, or why, but this relates to TFO. The traffic itself should be mostly encrypted but stripped with -s100 > example, the -s flag can control how much of each packet tcpdump > may want to anonymize the trace and/or capture just headers, etc (for > easier to visualize and analyze if we can see the raw. > with the -w flag)? There are a number of tools that will make this ![]() > Can you please attach (or link to) a tcpdump raw. > probably a better forum for this discussion. > Thanks for the report! I have CC-ed the netdev list, since it is Next in thread: Eric Dumazet: "Re: linux 5.17.1 disregarding ACK values resulting in stalled TCP connections".In reply to: Eric Dumazet: "Re: linux 5.17.1 disregarding ACK values resulting in stalled TCP connections".Previous message: Ryan Lin: " drm/amdgpu: fix that issue that the number of the crtc of the 3250c is not correct".Next message: Bjorn Andersson: " remoteproc updates for v5.18".Linux-Kernel Archive: Re: linux 5.17.1 disregarding ACK values resulting in stalled TCP connections Re: linux 5.17.1 disregarding ACK values resulting in stalled TCP connections From: Jaco Kroon ![]()
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