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Subject: [Bug 222647] VIMAGE jail: ifa_maintain_loopback_route: deletion
 failed for interface lo0: 48
Date: Wed, 25 Oct 2017 19:32:02 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222647

--- Comment #1 from Kristof Provost <kp@freebsd.org> ---
Okay, so this happens during this:

When destroying a vnet jail:
  1  57808     ifa_del_loopback_route:entry
              kernel`in6_purgeaddr+0x33
              kernel`ip6_destroy+0x142
              kernel`vnet_destroy+0x12c
              kernel`prison_deref+0x29c
              kernel`taskqueue_run_locked+0x15d
              kernel`taskqueue_thread_loop+0x88
              kernel`fork_exit+0x84
              kernel`0xffffffff80ef1b3e

Basically, ifa_del_loopback_route tries to delete the ::1 route on lo0 (in =
the
vnet jail) and can't because this route is RTF_PINNED. I'm not sure I fully
understand what that all implies, so I'm hesitant to change anything.

I'm pretty sure this is mostly harmless though.

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