Hi, On Sun, Nov 20, 2022 at 02:13:11PM +0100, Salvatore Bonaccorso wrote: > 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.
For reference, the commit would be v2 as applied in netdev as https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=8207f253a097fe15c93d85ac15ebb73c5e39e1e1 . Regards, Salvatore
