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Date:      Fri, 6 Jul 2018 20:06:43 +1000
From:      Jason Tubnor <jtubnor@gmail.com>
To:        Matt Churchyard <matt.churchyard@userve.net>
Cc:        freebsd-virtualization@freebsd.org
Subject:   Re: bhyve server 2016 lockup
Message-ID:  <CACLnyCLhQktaaBYBCGSYxgjtLFmoqMmf5_HyFhLjuwPiBRzRmw@mail.gmail.com>
In-Reply-To: <1595599bd62b43b2842b9a652c6d1773@SERVER.ad.usd-group.com>
References:  <1595599bd62b43b2842b9a652c6d1773@SERVER.ad.usd-group.com>

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Hi sorry on mobile so replying top.

I've got some 2016 guests running close to 12 months uptime. Just some
ideas below:

RAM allocation a little low for 2016 so bump that a little.

I use zvol for ahci storage with 4k blocks but have run 8k blocks as well.
MSSQL doesn't like anything more than 4k.

Swap out the nic e1000 for virtio. You'll get better throughput without
emulation. Drivers are available in places but I can provide you the iso
version that we use in production. I think this is what is causing you
issues.

Cheers.

Jason.

On Fri., 6 Jul. 2018, 18:22 Matt Churchyard, <matt.churchyard@userve.net>
wrote:

> Hello,
>
> I have a server 2016 virtual machine which I only created for testing and
> don't use much. Booting it up recently I've found that it locks up
> consistently within a few minutes of booting. What can I do to try and
> figure out what's causing the problem?
>
> Host was recently updated to 11.2
> # uname -a
> FreeBSD dev.--- 11.2-RELEASE FreeBSD 11.2-RELEASE #0 r335510: Fri Jun 22
> 04:32:14 UTC 2018     root@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC
> amd64
>
> Bhyve command is as follows
> # bhyve -c 2 -m 2G -Huwl
> bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd
>   -U 841e8764-75f4-11e8-b2e3-50e549369bc6 -l com1,stdio
>   -s 0,hostbridge -s 31,lpc -s 3:0,ahci-cd,/vm/.config/null.iso -s
> 4:0,ahci-hd,/vm/w2016/disk0.img -s 5:0,e1000,tap1,mac=58:9c:fc:08:8e:70
>   -s 6:0,fbuf,tcp=0.0.0.0:5900 -s 7:0,xhci,tablet w2016
>
> Top output -
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE   C   TIME    WCPU
> COMMAND
> 29796 root         22  20    0  2122M   944M kqread  0  24:59 113.13% bhyve
>
> Regards,
> Matt Churchyard
>
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