Re: [PATCH net] openvswitch: fix lockup on tx to unregistering netdev with carrier

[Friedrich Weber]

On 09/01/2025 13:21, Ilya Maximets wrote:
> [...]
> Fixes: 066b86787fa3 ("net: openvswitch: fix race on port output")
> Reported-by: Friedrich Weber <f.weber@xxxxxxxxxxx>
> Closes: https://mail.openvswitch.org/pipermail/ovs-discuss/2025-January/053423.html
> Signed-off-by: Ilya Maximets <i.maximets@xxxxxxx>
> ---
>  net/openvswitch/actions.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

I've applied this patch on top of Arch Linux's 6.12.8-arch1-1 kernel,
and the reproducer [1] has not triggered a infinite loop / network
freeze yet in ~1h, whereas on unmodified 6.12.8-arch1-1 it usually
triggers one in 5-10min, hence:

Tested-by: Friedrich Weber <f.weber@xxxxxxxxxxx>

If necessary, I can rerun the test on a mainline kernel.

Thank you for the quick fix!

[1]
https://mail.openvswitch.org/pipermail/ovs-discuss/2025-January/053423.html