On Mon, May 18, 2026 at 01:15:04PM +0200, Larysa Zaremba wrote:
> netif_set_xps_queue() should not be called for an XDP Tx queue, since such
> queues are not netdev-exposed. On systems with number of CPUs >=64, on E610
> adapter, netdev is configured with maximum number queue pairs being 63
> (due to MSI-X assignment), but configuring XDP results in 64 XDP queues.
>
> So, during XDP program load, when netif_set_xps_queue() is called for the
> last XDP queue, we get a WARNING with a call trace and KASAN report
> afterwards (if enabled).
>
> [ 2012.699800] WARNING: net/core/dev.c:2854 at
> __netif_set_xps_queue+0x116a/0x1e40, CPU#36: xdpsock/103668
...
>
> Skip XPS configuration for XDP Tx queues.
>
> Fixes: 33fdc82f0883 ("ixgbe: add support for XDP_TX action")
> Reviewed-by: Alexander Lobakin <[email protected]>
> Reviewed-by: Aleksandr Loktionov <[email protected]>
> Signed-off-by: Larysa Zaremba <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
