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.
Kristof
