Control: tags -1 + moreinfo Hi,
On Mon, Nov 14, 2022 at 06:34:43AM -0500, Kevin P. Fleming wrote: > Package: src:linux > Version: 6.0.7-1 > Severity: normal > Tags: ipv6 > > Dear Maintainer, > > This system has been operating for most of the last 12 months, using > ProxyNDP on its external interface for eight addresses. After > upgrading to the 6.0 kernel series, the kernel stops responding to ND > solicitations for those addresses after startup... it does not happen > immediately, but reliably occurs. When the system is in this state > (not responding to ND solicitations for the proxy addresses), the > proxy addresses are still shown in 'ip neigh show proxy', and the > single non-proxy address on the same interface continues operating > normally. > > Booting the system with the 5.19.0-2 kernel package cures the problem, > with no other changes. > > Example output: > > root@net22:~# ip neigh show proxy > 2607:5300:203:9743::1 dev ve-diw20 proxy > 2607:5300:203:9743::1 dev ve-matrix20 proxy > 2607:5300:203:9743::1 dev ve-ns3 proxy > 2607:5300:203:9743::1 dev ve-ldl20 proxy > 2607:5300:203:9743::1 dev ve-quassel21 proxy > 2607:5300:203:9743::1 dev ve-mastodon22 proxy > 2607:5300:203:9743::1 dev ve-monica21 proxy > 2607:5300:203:9743::1 dev ve-mail20 proxy > 2607:5300:203:9743:4::1 dev enp1s0f0 proxy > 2607:5300:203:9743:1::1 dev enp1s0f0 proxy > 2607:5300:203:9743:8::1 dev enp1s0f0 proxy > 2607:5300:203:9743:5::1 dev enp1s0f0 proxy > 2607:5300:203:9743:3::1 dev enp1s0f0 proxy > 2607:5300:203:9743:2::1 dev enp1s0f0 proxy > 2607:5300:203:9743:6::1 dev enp1s0f0 proxy > 2607:5300:203:9743:7::1 dev enp1s0f0 proxy > > The addresses on enp1s0f0 are the ones which stop responding. Does the following matches your problem? https://lore.kernel.org/netdev/y295+9+jdjqrw...@x1.ze-it.at/ Would you be able to test the mentioned patch to verify a fix for your issue? The above changes fixes 0ff4eb3d5ebb ("neighbour: make proxy_queue.qlen limit per-device") introduced in 6.0-rc2. Regards, Salvatore