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Date:      Sat, 23 May 2020 09:52:52 +0300
From:      =?UTF-8?B?w5Z6a2FuIEtJUklL?= <ozkan.kirik@gmail.com>
To:        freebsd-net@freebsd.org, freebsd-stable <freebsd-stable@freebsd.org>
Subject:   stable/12 - netstat -g IPv4 Virtual Interface Table data wrong
Message-ID:  <CAAcX-AGavG-Y1xa_77xREPr7ruohp-cJnAPXd0cmaSe4LrHUCg@mail.gmail.com>

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Hello,

I opened 2 bug reports about FreeBSD stable/12.
(https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246626 and
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246626)

I'm not runnging any daemons on system. No multicast software or
router running. But netstat output is scrambled.


I checkout latest sources from stable/12
(svn.freebsd.org/base/stable/12) and rebuild kernel. After reboot,
netstat -g output and multicast vif registration problems occured.

As you can see below, netstat -g output, scrambled. Thresh is too
high, Local addresses and counters are wrong. I think there is a
corruption in kernel.

There is no problem on FreeBSD 12.1-p5 system. But stable/12 is corrupted.


# uname -a
FreeBSD freebsd12 12.1-STABLE FreeBSD 12.1-STABLE r361408 MULTICAST  amd64

# netstat -g
IPv4 Virtual Interface Table
 Vif   Thresh   Local-Address   Remote-Address    Pkts-In   Pkts-Out
  0       192   1.248.255.255                           0          0
  5       137   0.254.255.255                   18446741874692295056
18446741874692295040

IPv4 Multicast Forwarding Table is empty

IPv6 Multicast Interface Table is empty

IPv6 Multicast Forwarding Table is empty


Regards


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