Date: Wed, 29 Jun 2022 15:37:38 +0200 From: Santiago Martinez <sm@codenetworks.net> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: FreeBSD 13-STABLE - Bridge issues and Kernel panic. Message-ID: <8021448f-9e8d-b0b0-0b7b-c1cb19bc62f9@codenetworks.net>
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Hi everyone, hope you are doing well..
I been noticing some instabilities with the bridge on 13-STABLE (not
sure when it started).
Environment is as following:
- kernel:FreeBSD tucho 13.1-STABLE FreeBSD 13.1-STABLE #21
stable/13-n251571-2ff5f3e7d159:
- bridge0 members : igb0 and vtnet0.1 ( jail with vnet).
- bridge0 no STP/RSTP
- igb0 connect to FBSD based router.
- No PF nor IPFW.
Symptoms:
Bridging: sometimes bridging works as expected, can ping attached router
on igb0.
Bridging: randomly stop doing any switching. traffic still can be seen
with tcpdump.
kernel panic: if bridge is delete, got a kernel panic.
The following commands are sufficient to panic the system.
ifconfig bridge create name test
ifconfig test up
ifconfig test addm igb0 addm vnet0.1
ifconfig test stp igb0
ifconfig test 192.168.3.100/24
ping -c4 192.168.3.1
ifconfig test destroy
Still cannot save the panic as the machine reboots and there is not core
and crash files..
Any recommendations on how to catch it are welcome..
Santi
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<p><font face="monospace">Hi everyone, hope you are doing well..</font></p>
<font face="monospace"> </font>
<p><font face="monospace">I been noticing some instabilities with
the bridge on 13-STABLE (not sure when it started).</font></p>
<font face="monospace"> </font>
<p><font face="monospace">Environment is as following:</font></p>
<font face="monospace"> - kernel:<span
style="color:#000000;background-color:#ffffff;"> FreeBSD tucho
13.1-STABLE FreeBSD 13.1-STABLE #21
stable/13-n251571-2ff5f3e7d159:</span><br>
- bridge0 members : igb0 and vtnet0.1 ( jail with vnet).<br>
- bridge0 no STP/RSTP<br>
- igb0 connect to FBSD based router.<br>
- No PF nor IPFW.<br>
</font>
<p><font face="monospace">Symptoms:<br>
</font> </p>
<font face="monospace"> </font>
<p><font face="monospace">Bridging: sometimes bridging works as
expected, can ping attached router on igb0.</font></p>
<p><font face="monospace">Bridging: randomly stop doing any
switching. traffic still can be seen with tcpdump.</font></p>
<font face="monospace"> </font>
<p><font face="monospace">kernel panic: if bridge is delete, got a
kernel panic.</font></p>
<font face="monospace"> </font>
<p><font face="monospace">The following commands are sufficient to
panic the system.</font></p>
<font face="monospace"> </font>
<p><font face="monospace"><span
style="color:#000000;background-color:#ffffff;">ifconfig
bridge create name test </span><br>
ifconfig test up <br>
ifconfig test addm igb0 addm vnet0.1 <br>
ifconfig test stp igb0 <br>
ifconfig test 192.168.3.100/24 <br>
ping -c4 192.168.3.1 <br>
ifconfig test destroy<br>
</font> <font face="monospace"><br>
</font> </p>
<font face="monospace"> </font>
<p><font face="monospace">Still cannot save the panic as the machine
reboots and there is not core and crash files..</font></p>
<p><font face="monospace">Any recommendations on how to catch it are
welcome..</font></p>
<p><font face="monospace">Santi</font></p>
<p><br>
</p>
<p><br>
</p>
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