Bug 548408

Summary:	net-misc/iputils: ping: WARNING: kernel is not very fresh, upgrade is recommended.
Product:	Gentoo Linux	Reporter:	Vadim A. Misbakh-Soloviov (mva) <mva>
Component:	Current packages	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED FIXED
Severity:	normal	CC:	forza, sschocke
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	http://bugs.debian.org/709052 http://bugs.debian.org/120166
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Patch to remove bogus check required for < 2.4.9 kernels

Description Vadim A. Misbakh-Soloviov (mva) gentoo-dev

2015-05-02 16:38:31 UTC

iputils has wrong check for kernel features, which leads to the warning from the subject when user is pinging host via the network without proper routing for that. The problem is someway described on the debian bz: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=709052

I'd also note, that I can reproduce it every time by either unplugging Ethernet from the router or:
> ping 8.8.8.8 -I vpn

(where vpn is (SUDDENLY) tun/tap VPN interface without internet access, managed by tinc-1.1pre11 in switch mode).

Comment 1 Felix Janda 2015-05-02 18:15:44 UTC

See also

https://github.com/iputils/iputils/commit/5bb0f0a8b0ed6f111a329c0d6911dfa516ab1d42

Comment 2 Forza 2015-05-06 11:43:36 UTC

Can confirm the same error on gentoo-sources-4.0.1 and iputils-20121221-r1

Comment 3 SpanKY gentoo-dev

2015-05-06 14:52:53 UTC

(In reply to Felix Janda from comment #1)

i glanced through that commit and i'm not convinced it's entirely correct.  it isn't only deleting the warning message, but also adding socket options and detecting resulting errors.

Comment 4 Sebastian Schocke 2015-06-26 03:34:54 UTC

Created attachment 405768 [details, diff]
Patch to remove bogus check required for < 2.4.9 kernels

Attached a proposed patch to fix this issue. It clears up the warning on my side without any new issues appearing on my side.

Based on https://github.com/iputils/iputils/commit/5bb0f0a8b0ed6f111a329c0d6911dfa516ab1d42?diff=unified