Hi Michael, On Sat, May 09, 2020 at 05:42:55PM +0200, Michael Tuexen wrote: > > On 9. May 2020, at 16:25, Gordon Bergling <gbergl...@googlemail.com> wrote: > > I tried tcp_rack and tcp_bbr, since both are separate TCP stacks. I just > > posted the wrong error message. Both TCP stacks weren’t loadable as a > > kernel module with just the former mentioned build option. > > > > I currently have build running with both kernel options you mentioned. > > > > If the build is successful and I can change the default TCP stack to RACK > > and BBR I let you know. > That would be great. I have them running on my machines, but I might have > missed something. > > > > Further I didn’t find any documentation within tcp(4) regarding RACK and > > BBR. Since I am about to enhance the manpages, I’ll extent tcp(4) about > > information about RACK and BBR, but this is a different topic. > > > Yes it is. And I would suggest to use separate man pages, a single one for > each stack. > The the generic man page might refer to them...
My first thoughts on this topic were about to extent tcp(4) and create links to tcp_rack(4) and tcp_bbr(4), but separate manpages maybe the way to go. I just have to investigate the respective details. I was once very deep into TCP/IP, while building perimeter firewalls with FreeBSD, but this was 20 years ago. I add you as a reviever for the differential once I have a rough cut for the manpages ready. Best regards, Gordon > >> Am 09.05.2020 um 14:37 schrieb Michael Tuexen <tue...@freebsd.org>: > >>> On 9. May 2020, at 14:18, Gordon Bergling <gbergl...@googlemail.com> > >>> wrote: > >>> > >>> Greetings, > >>> > >>> I build -CURRENT with WITH_EXTRA_TCP_STACKS=1, but I got the following > >>> error > >>> when I try to load for example tcp_bbr.ko. > >>> z > >>> kldload: an error occurred while loading module tcp_rack.ko. Please check > >>> dmesg(8) for more details. > >> This indicates that you want to load the RACK stack. > >> > >> Please note that you need for BBR and RACK: > >> options TCPHPTS > >> in the kernel config and in addition to that for RACK > >> options RATELIMIT > >> > >>> dmesg shows: > >>> > >>> KLD tcp_bbr.ko: depends on tcphpts - not available or version mismatch > >>> linker_load_file: /boot/kernel/tcp_bbr.ko - unsupported file type > >>> > >>> Any hints on solving the problem? > >>> > >>> The kernel config is GENERIC. > >>> > >>> Best regards, > >>> > >>> Gordon _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
