Simon Brummer

Hi @uglybob, From the log itself, it looks like the gnrc_tcp_open call never returns. This is an Indicator that the connection was not established in the first place. Do you...

I have the same Issue and disabling "nice" doesn't help because the next the invalid command complains is "/usr/sbin/backintime". I'll resort to creating backups based on an interval. If you...

> > > @brummer-simon I just noticed something now that client and server are combined into the same application: > After starting the server, I can no longer open any...

> > Shouldn't `gnrc_pktbuf` take care of holding the memory of the packet? Why do we need to copy it to a second buffer? > > IIRC, the current `gnrc_tcp`...

@chrysn allowing a peer to drain gnrc_pktbuf is a real problem here the receive buffer helps to prevent. Zero copy would be nice and all but we had already memory...

> > seems as if this is not able to send while listening even though there is `CONFIG_GNRC_TCP_RCV_BUFFERS=2` > > hm yea I can't really explain that - maybe @brummer-simon...

@kfessel: Interesting. I'll try to replicate It in the evening. Maybe I am able to figure something out. For now it looks like faulty behavior to me

@benpicco, @kfessel - I think I found the Issue here. For some reason unknown to me, the configuration in "app.gnrc.config" is not applied. If I add "CFLAGS += -DCONFIG_GNRC_TCP_RCV_BUFFERS=2" directly...

Hi @yanavlasov, I don't have access to Slack. Is there any other way to ask for help understanding the envoy internals? Cheers Simon

Thanks for raising the issue. The versions in use are defined in buildroot used to build the linux rootfs. I try used buildroot as it is therefore I will not...