Bhyve Broken: whose fault (AMD, FreeBSD, ZFS ...?)

[Zaphod Beeblebrox]

... curiously, top running on the guest reveals (the point at which the
bhyve wedges):

88722 root          1  52    0   109M   105M pfault  3   0:03  42.37%
llvm-tblgen
88687 root          1  52    0   374M   347M pfault  2   0:04  38.24%
llvm-tblgen
88668 root          1  52    0   236M   225M pfault  0   0:04  35.11%
llvm-tblgen
88743 root          1  52    0 55460K 26392K pfault  3   0:00  10.23% cc

... where top on the host just shows 100% bhyve 100% busy on 4 threads.


On Fri, Jul 21, 2017 at 6:43 PM, Zaphod Beeblebrox <zbeeble at gmail.com>
wrote:

> Since I found out that I can't run a Samba directory server in a jail,
> I've had the setup of a bhyve on my list.  I had toyed with Bhyve 6 or 8
> months ago, and still had the images, so I zfs cloned one and set about a
> source upgrade.
>
> This ignomineously hung.
>
> So... I upgraded the host to 11.1-RC3, and I reinstalled a fresh guest
> from the 11.1-RC3 install CD.  The guest uses UFS2 on a 40G disk, the
> server is an AMD 9590 with 32G RAM and a 40T ZFS array.
>
> After installation, I started the guest again with 1G ram, 4 processors
> (of the 8 on the source CPU) and tried a buildworld again.  This time the
> guest crashed and rebooted.
>
> What should be next steps here?  This is repeatable.  The host is stable
> (it can makeworld -j32 in about 25 minutes ... so it's hardware seems
> good).  Is this an AMD bug?  Is it bad to use ZFS ZVols?
>