[Bug 247647] if_vmx(4): Page fault when opening netmap port (IFLIB/DMA)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247647

--- Comment #17 from Zhenlei Huang <zlei.huang at gmail.com> ---
(In reply to Murat from comment #16)
> I can also confirm that patch fixes the kernel crash. PINGs are also ok.
> However, if you try to do secure copy, you start getting DUP packets; and connection stalls.

For
> PINGs are also ok
, do you mean after the fix there's no duplicated ICMP replies ?

For the duplicated TCP acks, there's a known regression
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236999 . Can you please
disable TSO ('ifconfig vmx0 -tso') and test again ?

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