> On 9. May 2020, at 18:07, Gordon Bergling <gbergl...@googlemail.com> wrote: > > 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. Hi Gordon,
please do so. Don't forget to add rrs@, since he wrote both stacks. Best regards Michael > > 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"
