Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings

From	Ben Hutchings <ben@decadent.org.uk>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings
Date	2018-07-18 23:40 +0200
Message-ID	<wd2kV-1Z8-3@gated-at.bofh.it> (permalink)
References	<wbvU5-3E1-13@gated-at.bofh.it> <wcFeG-4Fn-9@gated-at.bofh.it> <wd2kV-1Z8-5@gated-at.bofh.it> <wbvU5-3E1-13@gated-at.bofh.it> <wd2kV-1Z8-5@gated-at.bofh.it>
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On Wed, 2018-07-18 at 22:31 +0200, Thomas Leuxner wrote:
> * Ben Hutchings <ben@decadent.org.uk> 2018.07.17 22:52:
> 
> > > Jul 14 12:46:18 edi kernel: [   29.601249] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
> > > Jul 14 12:46:24 edi kernel: [   35.920488] sit: non-ECT from 238.163.0.0 with TOS=0x2
> > > Jul 14 12:46:24 edi kernel: [   35.956189] sit: non-ECT from 238.163.0.0 with TOS=0x2
> > > Jul 14 12:46:24 edi kernel: [   35.980514] sit: non-ECT from 238.163.0.0 with TOS=0x2
> > > Jul 14 12:46:25 edi kernel: [   36.207554] sit: non-ECT from 0.12.0.0 with TOS=0xb
> > > Jul 14 12:46:25 edi kernel: [   36.230568] sit: non-ECT from 0.12.0.0 with TOS=0x6
> > > Jul 14 12:46:25 edi kernel: [   36.413928] sit: non-ECT from 0.12.0.0 with TOS=0x6
> > > Jul 14 12:46:25 edi kernel: [   36.437173] sit: non-ECT from 0.12.0.0 with TOS=0x6#
> > 
> > I con't see any changes in the sit driver's receive path since the
> > previous upstream version (4.9.88), and we don't have any Debian-
> > specific patches for it, so I don't think this is the result of a
> > regression.
> > 
> > Is it possible that the network configuration applied after reboot is
> > not the same as you had applied previously?
> 
> Hi,
> 
> the network configuration hasn't changed.
>  
> > The sit module has a module parameter (log_ecn_error) that controls
> > this log message.  Perhaps that was set to 0/N previously?
> 
> I could mitigate the noise by applying:
> 
> echo N > /sys/module/sit/parameters/log_ecn_error
> 
> So you may be right, maybe the default has changed?

No, I don't believe the default has changed.  I was suggesting that
perhaps that parameter had been changed on this system before the
reboot.

Ben.

-- 
Ben Hutchings
Logic doesn't apply to the real world. - Marvin Minsky

Thread

Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Thomas Leuxner <tlx@leuxner.net> - 2018-07-14 18:50 +0200
  Processed: Re: Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings "Debian Bug Tracking System" <owner@bugs.debian.org> - 2018-07-17 23:00 +0200
  Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Ben Hutchings <ben@decadent.org.uk> - 2018-07-17 23:00 +0200
  Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Ben Hutchings <ben@decadent.org.uk> - 2018-07-18 23:40 +0200
    Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Thomas Leuxner <tlx@leuxner.net> - 2018-07-19 11:40 +0200
      Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Salvatore Bonaccorso <carnil@debian.org> - 2018-07-19 14:50 +0200
        Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Thomas Leuxner <tlx@leuxner.net> - 2018-07-21 12:30 +0200
          Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Salvatore Bonaccorso <carnil@debian.org> - 2018-07-21 13:30 +0200
  Processed: Re: Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings "Debian Bug Tracking System" <owner@bugs.debian.org> - 2018-07-18 23:40 +0200
  Processed: Re: Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings "Debian Bug Tracking System" <owner@bugs.debian.org> - 2018-07-21 13:30 +0200
  Bug#903776: Kernel 4.9.110-1 sit: non-ECT warnings Stéphane Poignant <stephanepoignant@vialis.net> - 2018-07-25 02:00 +0200

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