Date: Sun, 08 Dec 2013 12:32:33 +0100 From: Ilya Bakulin <webmaster@kibab.com> To: Bryan Venteicher <bryanv@daemoninthecloset.org> Cc: freebsd-current@freebsd.org Subject: Re: vtnet broken on -CURRENT when using VirtualBox Message-ID: <52A458D1.5040605@kibab.com> In-Reply-To: <1858127865.2551.1386462176032.JavaMail.root@daemoninthecloset.org> References: <52A37198.1030506@kibab.com> <1858127865.2551.1386462176032.JavaMail.root@daemoninthecloset.org>
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On 08.12.13, 01:22, Bryan Venteicher wrote:
>
>
> ----- Original Message -----
>> System in a virtual machine: FreeBSD-CURRENT SVN rev 259064.
>> Virtual machine is created with virtio host-only adapter.
>>
>> When trying to ssh into VM, the system in VM panics with the following
>> message:
>>
>> panic: vtnet_txq_offload: mbuf 0xc309e900 TSO without checksum offload
>> Please help me to debug this.
>>
>
> I suspect I know what is wrong. What's the output of `ifconfig vtnetX`?
# ifconfig vtnet0
vtnet0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=6c03bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
ether 08:00:27:96:b3:bc
inet 192.168.56.10 netmask 0xffffff00 broadcast 192.168.56.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet 10Gbase-T <full-duplex>
status: active
There are offloading capabilities present, but apparently VirtualBox
virtio doesn't do it correctly.
Running
# ifconfig vtnet0 -tso
solves the problem, I can log in via ssh just fine.
--
Ilya
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