[dpdk-dev] [dpdk-stable] [PATCH v2] igb_uio: prevent reset for a list of devices

[Chas Williams]

Regardless if the issue is actually in the host kernel, I cannot fix all
the hypervisors so I must attempt to be well behaved as a guest.

On Tue, Nov 7, 2017 at 8:13 AM, Stephen Hemminger <
stephen at networkplumber.org> wrote:

>
>
> On Nov 7, 2017 20:50, "Chas Williams" <3chas3 at gmail.com> wrote:
>
> We still have an issue with this and PCI pass-through.  If a guest is
> restarted while using PCI pass-through and igb_uio issues a
> pci_reset_function(), this causes the host to crash.
>
> On Mon, Nov 6, 2017 at 6:55 PM, Thomas Monjalon <thomas at monjalon.net>
> wrote:
>
>> 06/11/2017 19:48, Ferruh Yigit:
>> > Some devices are having problem on device reset that happens during DPDK
>> > application exit [1].
>> >
>> > Create a static list of devices and exclude them from device reset.
>> >
>> > [1]
>> > http://dpdk.org/ml/archives/dev/2017-November/080927.html
>> >
>> > Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of
>> device file")
>> > Cc: stable at dpdk.org
>> >
>> > Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
>>
>> Applied, thanks
>>
>> An option may be required to disable this exception
>> which may be a security hole.
>>
>>
>
> Which host. Anything guest can do to crash host is a high severity big in
> the host
>