[Bug 215740] [bhyve] utilizing passthru breaks raw device usage with virtio-blk | ahci-hd

Peter Grehan grehan at freebsd.org
Fri Jan 13 02:49:59 UTC 2017

Hi Harry,

>  Bezüglich bugzilla-noreply at freebsd.org's Nachricht vom 04.01.2017 21:37
> (localtime):
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215740
>>> --- Comment #1 from Peter Grehan <grehan at FreeBSD.org> ---
>> Would you be able to post a verbose dmesg (boot -v) ?
> Due to lack of knowledge I experimented with BIOS VT-d settings "Remap
> Interrupt enable" and "Remap DMA enable".
> No difference in any combination.
> Is there anything else I can provide to help narrowing down the problem?
> Has anybody else ever tried such a VM (using character special file as
> virtio-blk backend together with a passthru device)? With success?

  I had a look at the dmesg logs you posted in the bug report - 
everything looked fine there. I'll give it a try and see if I can repro.



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