Re: [PATCH v2 net-next 00/14] selftests: net: migrate AF_XDP test suite over to net

[Maciej Fijalkowski <maciej.fijalkowski@intel.com>]

On Fri, Oct 09, 2026 at 02:02:01PM +0200, Björn Töpel wrote:
> Jakub Kicinski <kuba@kernel.org> writes:
> 
> > On Thu,  8 Oct 2026 13:48:55 +0200 Maciej Fijalkowski wrote:
> >> Heads-up for ice: to reserve a queue, xsk.py updates only the RSS
> >> indirection table over ethtool netlink. On ice this also turns on
> >> symmetric Toeplitz hashing, and restoring the table afterwards fails.
> >> The fix, "ice: keep the RSS hash function on indirection-only updates",
> >> goes to iwl-net separately [0]. Without it, the first case that takes a
> >> queue out of RSS fails in its cleanup, and the table stays modified.
> >
> > Good news it that it applied, bad news is that the non-HW test_xsk.sh
> > crashes the host:
> >
> > https://netdev-ctrl.bots.linux.dev/logs/vmksft/net-dbg/results/857863/166-test-xsk-sh/stderr
> 
> That's also good! A bug has been surfaced by the test! XD
> 
> AFAIU this is a know veth issue [1] (right, Maciej?).
> 
> Disable until a fix a landed?

Yes that's the ever-lasting veth issue where mem_type is changed during
skb's CoW and system page_pool comes to play.

Gonna disable tests that adjust tail on veth side until we resolve the
veth side :<

> 
> 
> Björn
> 
> 
> [1] https://lore.kernel.org/netdev/20260509084858.773921-1-maciej.fijalkowski@intel.com/