[Bug 194314] [ixgbe] driver makes some dangerous assumptions with struct mbuf sizing with IXGBE_RX_COPY_LEN

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194314

Garrett Cooper <ngie at FreeBSD.org> changed:

           What    |Removed                     |Added
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           Priority|---                         |Normal

--- Comment #4 from Garrett Cooper <ngie at FreeBSD.org> ---
(In reply to Garrett Cooper from comment #3)
> We don't yet. This was a recently discovered issue on a driver that isn't
> available in HEAD yet...

Note:

This bug is only harmful if you modify any of the structures that comprise
`struct mbuf` as the observation hasn't been violated on FreeBSD CURRENT [yet].
Isilon runs into this issue because we add additional fields to track mbufs.

Status update:

Isilon is waiting for a fix from upstream (Intel); we will work with Intel to
get the fix tested and pushed into FreeBSD.

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