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Re: Ping message

On Wed, 8 Aug 2001, Christian Kurz wrote:

> > > Warning: time of day goes back, taking countermeasures.
> > I believe your ping command is using features only available in a newer
> > kernel. Maybe upgrade your kernel (2.4.4?) or see if your ping has a -U
> > switch to ignore this.
> What should a feature of a kernel has to do with a message from ping
> complaining about problems with the time measurement? 
> I don't understand the source of ping completely, but I would say that
> this message is a hint to a problem with the clock. This message is

I am pretty sure it is not the return value form gettimeofday() -- it is
the information returned via ioctl() for a SIOCGSTAM (receive timestamp of
the last packet passed to the user) or SO_TIMESTAMP request (timestamp of
incoming datagrams).

I believe -U uses different functionality (old feature) and
bypasses this problem.

>From looking at postings on the web, it appears to be a kernel bug.

Some info at http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=37485

  Jeremy C. Reed
echo '9,J8HD,fDGG8B@?:536FC5=8@I;C5?@H5B0D@5GBIELD54DL>@8L?:5GDEJ8LDG1' |\
sed ss,s50EBsg | tr 0-M 'p.wBt SgiIlxmLhan:o,erDsduv/cyP'

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