On Fri, Sep 23, 2022 at 2:43 PM Kevin Traynor <[email protected]> wrote:
>
> On 22/09/2022 13:40, Michael Phelan wrote:
> > Update OVS CLI and relevant documentation to use DPDK 20.11.6.
> >
> > A bug was introduced in DPDK 20.11.5 by the commit 33f2e3756186 ("vhost: 
> > fix unsafe vring addresses modifications").
> > This bug can cause a deadlock when vIOMMU is enabled and NUMA reallocation 
> > of the virtqueues happen.
> > A fix [1] has been posted and pushed to the DPDK 20.11 branch.
> > If a user wishes to avoid the issue then it is recommended to use DPDK 
> > 20.11.4 until the release of DPDK 20.11.7.
> > It should be noted that DPDK 20.11.4 does not benefit from the numerous bug 
> > fixes addressed since its release.
> > If a user wishes to benefit from these fixes it is recommended to use DPDK 
> > 20.11.6.
> >
> > [1] 
> > https://patches.dpdk.org/project/dpdk/patch/[email protected]/
> > Signed-off-by: Michael Phelan <[email protected]>
> >
>
> For branches 2.15 [0] and 2.16 [1] I ran github actions and it failed.
> For 2.16 branch I removed the patch and it passed [2]. It seems like
> that the meson used (0.47.1 - which is min version for 20.11) does not
> like the 20.11.5/6 package, or there is some other github effect. It is
> working fine with 20.11.4.
>
> Afterwards, checking the ovs-build mailing [4] list I also see failures
> here and an additional failure for 2.17 branch. So all these failures
> need to checked.
>
> [1] https://github.com/kevintraynor/ovs/actions/runs/3111862351
> [2] https://github.com/kevintraynor/ovs/actions/runs/3111865180
> [3] https://github.com/kevintraynor/ovs/actions/runs/3112089634
> [4]
> https://mail.openvswitch.org/pipermail/ovs-build/2022-September/date.html

This looks like a regression in 20.11 LTS with older meson.
Adding 20.11 LTS maintainers to the thread.

Afaics, this is triggered by "build: fix warnings when running
external commands".
And reverting it is enough to fix the error with meson 0.47.1.
https://github.com/david-marchand/dpdk/commits/20.11
https://github.com/david-marchand/dpdk/actions/runs/3113099408


-- 
David Marchand

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