Re: [CRIU] TCP_REPAIR MSS issue

On Tue, Jun 14, 2016 at 07:37:12PM +0000, Eggert, Lars wrote:

Hi,

On 2016-06-14, at 19:15, Andrey Vagin [off-list ref] wrote:

quoted

Recently we found that we have to restore more parameters for tcp
sockets.
https://patchwork.kernel.org/patch/9144995/

thanks for the pointer.

quoted

As for your problem, criu saves and restores mss_clamp. Could you check
that it works for your case?

I do this already, but clamping doesn't help here, since it only limits the MSS (but does not increase it from the minimum.)

Yes, you are right.

On my host, I see that dst is set in tcp_v4_connect() -> sk_setup_caps()

Lars