Date: Tue, 14 Mar 2017 12:38:14 -0700 From: Ayaka Koshibe <akoshibe@gmail.com> To: Reshad Patuck <reshadpatuck1@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: VNET kernel panic on remove renamed interfaces Message-ID: <CAA-4d9SK3hkdpnBH_o8u3qHFKoZuKpu2dOA0UU5%2BXxNi5wODEA@mail.gmail.com> In-Reply-To: <C20DF21D-A392-4AB7-852F-4D3E599956A3@gmail.com> References: <C20DF21D-A392-4AB7-852F-4D3E599956A3@gmail.com>
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Hi, This looks identical to the panic that I was seeing. It was just patched in -CURRENT yesterday (r315192) - maybe it's this? https://svnweb.freebsd.org/base?view=revision&revision=315192 Ayaka On Tue, Mar 14, 2017 at 11:25 AM, Reshad Patuck <reshadpatuck1@gmail.com> wrote: > Hi, > > I am trying to use vnet and pf to host multiple (100s of) jails on a server with a jailed pf router, which will be spun up and down by a script. > > I rename the epair interfaces so that I know which jail links to which interface (for convenience). > > After I delete the jail and renamed epair the kernel panics when I attempt to recreate the epair. > > I believe this is an issue occurs only when I have renamed the epair. > > This issue seems to be fixed in 12-CURRENT as I can not make it crash on current. However this continues to happen on 11-STABLE and 11.0-RELEASE. > > I have found these which seem to fix something similar issues: > https://svnweb.freebsd.org/base?view=revision&sortby=rev&revision=292604 > https://svnweb.freebsd.org/base/projects/vnet/_scripts/jail-vnet-epair-regression01.sh?view=markup > > I have attached scripts that crash the system for the latest versions on 11.0-RELEASE and 11-STABLE branches. > > Can someone help me find where this problem was fixed? (for 12) and if there are any plans to backport the fix to the 11 branch. > > Also any tips on running 100s of VNET jails on a single box would be much appreciated, and if there is anything I can help test I have some physical and VMware boxes I can test on. > > Kernel version I have tested on: > FreeBSD FreeBSD-11-RELEASE 11.0-RELEASE-p8 FreeBSD 11.0-RELEASE-p8 #1 r315007: Fri Mar 10 17:27:30 UTC 2017 root@FreeBSD-11-RELEASE:/usr/obj/usr/src/sys/VNET amd64 > FreeBSD FreeBSD-11-STABLE 11.0-STABLE FreeBSD 11.0-STABLE #1 r315241: Tue Mar 14 12:58:54 UTC 2017 root@FreeBSD-11-STABLE:/usr/obj/usr/src/sys/VNET amd64 > FreeBSD FreeBSD-12 12.0-CURRENT FreeBSD 12.0-CURRENT #1 r315237: Tue Mar 14 10:17:06 UTC 2017 root@FreeBSD-12:/usr/obj/usr/src/sys/VNET amd64 > > Attached: > vnet-rename-epair.sh - Create and destroy a VNET jail in a loop while renaming the epair interface. This crashes on 11. > vnet-no-rename-epair.sh - Create and destroy a VNET jail while not renaming the epair interface. This does not crash. > info.0 - info file from core dump on FreeBSD-11-STABLE > core.txt.0 - core.txt.0 file from core dump on FreeBSD-11-STABLE > > Best regards, > > Reshad > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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