On Mon, 15 Mar 2021 12:27:20 -0700
Stephen Hemminger <step...@networkplumber.org> wrote:

> This fixes two places where pthread_mutex was being unsafely
> used between primary secondary process.
> 
> These patches are necessary but not sufficient to address Bug 662
> 
> Stephen Hemminger (2):
>   ethdev: make flow API primary/secondary process safe
>   net/failsafe: fix primary/secondary mutex
> 
>  drivers/net/failsafe/failsafe.c | 5 +++++
>  lib/librte_ethdev/rte_ethdev.c  | 6 +++++-
>  2 files changed, 10 insertions(+), 1 deletion(-)
> 

The following drivers have the same kind of issue.

Drivers with unsafe pthread_mutex:

net/
        af_xdp
        atlantic
        axgbe
        bnxt
        ena
        failsafe (see patch #2)
        hinic
        mlx5
        qede
        vhost
        virtio

raw/    
        ifpga
vdpa/
        ifc
        mlx5


Another alternative would be to create a DPDK wrapper (rte_mutex?)
which had the proper semantics. That might make the Windows port easier.
But it would make backport to stable harder.


If this does not get fixed in April, we should change documentation
to warn users.


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