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From: Andrea Brancatelli <abrancatelli@schema31.it>
Subject: Re: bhyve stuck
Date: Wed, 7 Jan 2015 23:11:11 +0100
To: Peter Grehan <grehan@freebsd.org>
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Hello Peter.

The host is a FreeBSD 10.1-p3.

I tried to restart the VM, but it hung after bhyveload.

I had to reboot the physical host and what's worst is that the MySQL instanc=
e inside of the VM was trashed. Luckily I has backups.



Sent from my iPad

> On 07/gen/2015, at 18:45, Peter Grehan <grehan@freebsd.org> wrote:
>=20
> Hi Andrea,
>=20
>> Assertion failed: (aior !=3D NULL), function ahci_handle_dma, file
>> /usr/src/usr.sbin/bhyve/pci_ahci.c, line 494.
>=20
> Ok - this should result in the bhyve process exiting.
>=20
>> Now the VM is totally hang. Trying to kill bhyve doesn=E2=80=99t work, no=
t
>> even kill -9. I tries do to do a bhyvectl =E2=80=94destroy and the VM
>> disappeared from /dev/vmm but I am strongly uncomfortable with what
>> to do now. The process is still there. Can I restart the VM?
>=20
> It should be fine to restart after a bhyvectl --destroy
>=20
>> This is the state of the process:
> ...
> > 91715 100246 bhyve blk-2:0 7 121 stop getblk
>=20
> This seems to be the culprit. What's the version of FreeBSD running on the=
 host ?
>=20
> tychon@ did quite a bit of work recently on making the block layer more ro=
bust in the face of guest controller timeouts. This made it in to CURRENT as=
 of r274330, and was MFCd to 10-STABLE with r276429. That change may help wi=
th your issue.
>=20
> later,
>=20
> Peter.