[Bug 286179] Passing a vlan interface to a vnet jail result in a stuck dying state

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Newsgroups gmane.os.freebsd.devel.net
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286179

--- Comment #31 from Zhenlei Huang <[email protected]> ---
(In reply to Peter Ganzhorn from comment #30)
>  3. If yes, then continue, do teardown process of the vnet.
>  4. The vnet runs all VNET SYSUNINIT. The verify first one is return the loaned interfaces to their home vnet. ( loaned via `ifconfig em0 vnet foo` or `jail vnet.interface=em0,em1` )
> 5. The return procedure involves detach ( from the dying vnet ) and attach ( to its home vnet ) operations and eventually you can retrieve them via `ifconfig em0`.

PS: If the step 4 or 5 hangs, then it will be easily spotted by `procstat -k 0`
. The kernel stack will show that clearly.

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