Re: kern/58387: Adding vlan to bridge causes lockup

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Jul 01, 2024 at 08:00:05PM +0000, john%ziaspace.com@localhost wrote:
> >Number:         58387
> >Category:       kern
> >Synopsis:       Adding vlan to bridge causes lockup
> >Confidential:   no
> >Severity:       serious
> >Priority:       medium
> >Responsible:    kern-bug-people
> >State:          open
> >Class:          sw-bug
> >Submitter-Id:   net
> >Arrival-Date:   Mon Jul 01 20:00:05 +0000 2024
> >Originator:     John Klos
> >Release:        NetBSD 10.0_STABLE
> >Organization:
> 	
> >Environment:
> 	
> 	
> System: NetBSD cat.zia.io 10.0_STABLE NetBSD 10.0_STABLE (GENERIC) #0: Thu Jun 27 05:26:35 UTC 2024  john%cat.zia.io@localhost:/usr/obj-amd64/sys/arch/amd64/compile/GENERIC amd64
> Architecture: x86_64
> Machine: amd64
> >Description:
> 	
> When adding a vlan interface to a bridge, things work as expected for a minute or two.
> However, after a short time, the kernel locks up completely. Can't get in to kernel
> debugger because USB stops working.
> How-To-Repeat:
> 	<code/input/activities to reproduce the problem (multiple lines)>
> ifconfig.vlan0:
> create
> vlan 108 vlanif bge1
> up
> 
> Then:
> ifconfig bridge0 create
> ifconfig bridge0 up
> ifconfig tap0 create
> ifconfig tap0 up
> brconfig bridge0 add vlan0 add tap0

I'm not sure it's related to vlan; I'm using vlans with bridges here
(on wm or ixl interfaces) without issue.
It may be related to bge, or tap

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--