[Bug 241774] FreeBSD 11.3 & 12.0 has broken SCSI & Networking on KVM/QEMU Q35 with OVMF

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241774

--- Comment #34 from John Hartley <drum at graphica.com.au> ---
(In reply to Tommy P from comment #32)

Hi Tommy T,

thanks for tip on backport.

I have come across the netdump issue with my backport and #defined any code for
this out to avoid compile issues.

Currently I have compiled and bootable 11.3 with the virtio backport, but
virtio is not working yet.

I am just testing with disk at the moment as to your point virtio network is
other issues which Vincenzo (from upstream netmap team) is helping to look at.

I believe with Vincenzo (netmap), Brian V (virtio) and yourself we have the
right people to get to root cause of netmap issue.

I put in weekend with backport but doubt I will able to do much concentrated
work with it during week due to work commitments.

Good thing is we are now getting multiple people now reproducing the Q35 netmap
issue.

I still believe that this is some subtle PCI / netmap interaction, as the
detection has already failed by early kernel load stage of boot.

Cheers,


John Hartley.

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