On 11 Mar 2022, at 18:55, Michael Gmelin wrote: >> On 12. Mar 2022, at 01:21, Kristof Provost <k...@freebsd.org> wrote: >> >> On 11 Mar 2022, at 17:44, Johan Hendriks wrote: >>>> On 09/03/2022 20:55, Johan Hendriks wrote: >>>> The problem: >>>> I have a FreeBSD 14 machine and a FreeBSD 13-stable machine, both running >>>> the same jails just to test the workings. >>>> >>>> The jails that are running are a salt master, a haproxy jail, 2 >>>> webservers, 2 varnish servers, 2 php jails one for php8.0 and one with >>>> 8.1. All the jails are connected to bridge0 and all the jails use vnet. >>>> >>>> I believe this worked on an older 14-HEAD machine, but i did not do a lot >>>> with it back then, and when i started testing again and after updating the >>>> OS i noticed that one of the varnish jails lost it's network connection >>>> after running for a few hours. I thought it was just something on HEAD so >>>> never really looked at it. But later on when i start using the jails again >>>> and testing a test wordpress site i noticed that with a simple load test >>>> my haproxy jail within one minute looses it's network connection. I see >>>> nothing in the logs, on the host and on the jail. >>>> From the jail i can not ping the other jails or the IP adres of the >>>> bridge. I can however ping the jails own IP adres. From the host i can >>>> also not ping the haproxy jail IP adres. If i start a tcpdump on the >>>> epaira interface from the haproxy jail i do see the packets arrive but not >>>> in the jail. >>>> >>>> I used ZFS to send all the jails to a 13-STABLE machine and copied over >>>> the jail.conf file as well as the pf.conf file and i saw the same behavior. >>>> >>>> Then i tried to use 13.0-RELEASE-p7 and on that machine i do not see this >>>> happening. There i can stress test the machine for 10 minutes without a >>>> problem but on 14-HEAD and 13-STABLE within a minute the jail's network >>>> connection fails and only a restart of the jail brings it back online to >>>> exhibit the same behavior if i start a simple load test which it should >>>> handle nicely. >>>> >>>> One of the jail hosts is running under VMWARE and the other is running >>>> under Ubuntu with KVM. The 13.0-RELEASE-p7 jail host is running under >>>> Ubuntu with KVM >>>> >>>> Thank you for your time. >>>> regards >>>> Johan >>>> >>> I did some bisecting and the latest commit that works on FreeBSD 13-Stable >>> is 009a56b2e >>> Then the commit 2e0bee4c7 if_epair: implement fanout and above is showing >>> the symptoms described above. >>> >> Interestingly I cannot reproduce stalls in simple epair setups. >> It would be useful if you could reduce the setup with the problem into a >> minimal configuration so we can figure out what other factors are involved. > > If there are clear instructions on how to reproduce, I’m happy to help > experimenting (I’m relying heavily on epair at this point). > > @Kristof: Did you try on bare metal or on vms? > Both.
Kristof
