Control: tags -1 + bullseye On Wed, Feb 02, 2022 at 08:36:22AM +0100, Binarus wrote: > IMPORTANT NOTE: > According to other reports of the same problem, ping behaves correctly when > IPv6 is *not* disabled at the kernel command line, but *is* instead disabled > via sysctl (e.g. sysctl -w net.ipv6.conf.all.disable_ipv6=1). The problem > occurs only when IPv6 is disabled at the kernel command line. Please note > also that disabling it via sysctl *in addition* to disabling it at the kernel > command line does not solve the problem. Actually, it does not change > anything, because the respective sysctl option does not have any effect if > IPv6 is already disabled at the kernel command line. > > ping's misbehavior in this situation is not acceptable. Many people have IPv6 > disabled at the kernel command line, and ping's misbehavior breaks a lot of > Nagios scripts for them, which is why I have assigned the "critical" severity > level. > > Please fix this as soon as possible. This bug is well-known and has been > fixed upstream 4 (yes: four!) months ago. Please refer to the following > discussion: > > https://github.com/iputils/iputils/issues/293
This bug by itself is entirely cosmetic and doesn't impact ping's functionality, so I don't think it'd warrant a fix to stable by itself. However, #920434, which covers measurement inaccuracies in ping, is significantly more important and does warrant a stable update. So I think we can bundle the fix for this one with its fix and get both of them resolved in a stable update. Will prepare an upload and follow up with the release team. noah
