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e83d0a2472
Add a regression test for the VLAN notifier handling that the netdev_work deferral fixed. A VLAN's real device propagates its UP/DOWN, MTU and feature changes onto the VLANs stacked on top of it. This used to be done synchronously from the real device's notifier and deadlocked when the real device was brought up while enslaved to a bond (instance lock held across NETDEV_UP) and the VLAN on top was itself a bond member: the synchronous propagation re-entered the stack and took the same instance lock again. The test covers both halves: - that the deferred UP/DOWN, MTU and feature propagation actually lands on the VLAN (link state and MTU use an ops-locked dummy, i.e. the deferral path; features use veth, which exports vlan_features to inherit), and - that the deadlock-prone topology - a VLAN on a dummy, with the VLAN and the dummy each enslaved to a different bond - can be built without hanging. Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20260624182018.2445732-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .. | ||
| bond_ipsec_offload.sh | ||
| bond_lacp_prio.sh | ||
| bond_lacp_strict.sh | ||
| bond_macvlan_ipvlan.sh | ||
| bond_options.sh | ||
| bond_passive_lacp.sh | ||
| bond_stacked_header_parse.sh | ||
| bond_topo_2d1c.sh | ||
| bond_topo_3d1c.sh | ||
| bond_vlan_real_dev.sh | ||
| bond-arp-interval-causes-panic.sh | ||
| bond-break-lacpdu-tx.sh | ||
| bond-eth-type-change.sh | ||
| bond-lladdr-target.sh | ||
| config | ||
| dev_addr_lists.sh | ||
| lag_lib.sh | ||
| Makefile | ||
| mode-1-recovery-updelay.sh | ||
| mode-2-recovery-updelay.sh | ||
| netcons_over_bonding.sh | ||
| settings | ||