On Mon, Dec 23, 2019 at 1:26 AM Jan Beulich <[email protected]> wrote: > On 21.12.2019 07:31, Glen wrote: > > So just for laughs, I ran an lsmod in both modes, and sorted and diffed > > them: > > br_netfilter > > bridge > One of these two is, according to my experience, a fair candidate for > your problems. I'm not a networking specialist at all, so I can't > give any suggestions on how to convert the upgraded guest to a > network config not requiring these modules. (Trying to get rid of > br_netfilter alone may be easier, but again I'm not really > knowledgeable in this area at all.)
All - During the past two weeks I've been trying to hunt these down, and I have discovered why these modules are loading. The Xen guest is running Docker.... and Docker needs those modules to provide access to the outside world for docker container networking. Those two modules don't exist in /etc/modprobe.d, and I can rmmod them without damaging the Xen guest at all - but when I do, the Docker containers lose their network connectivity. None of my other guests run Docker, which is why those modules don't exist in the other guests, and why, I'm now guessing, the other guests don't have crash issues. *sigh* So I may be in a chicken-and-egg scenario here, but I'll just put this out there - has anyone tried running Docker on a Xen guest, and/or could there be anything in those two modules Jan mentioned, or in Docker, that could be causing or related to these issues? I'd be grateful for any thoughts anyone might have! Glen -- To unsubscribe, e-mail: [email protected] To contact the owner, e-mail: [email protected]
