Re: Panic when destroying interfaces (kern/116837?)

From: Andrew Thompson <thompsa_at_FreeBSD.org> Date: Fri, 12 Dec 2008 12:17:01 -0800 · This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:39:38 UTC

On Fri, Dec 12, 2008 at 03:08:38PM -0500, Damian Gerow wrote:
> When investigating panics when destroying bridge(4) and tap(4) interfaces,
> I'm receiving a panic suspiciously similar to what I was seeing with ural(4)
> and wpa_supplicant(8).
> 
> (It's likely that I'm seeing two separate issues with ural(4), but only
> investigated the one triggered when removing one of the devices.)
> 
> Looking at the panic I receive with ural:
> 
> : -----
> : panic: _rw_rlock (radix node head): wlock already held _at_ /repo/freebsd/8-CURRENT/src/sys/net/route.c: 291
> : -----
> 
> I see exactly the same message when destroying bridge(4) and tap(4) virtual
> interfaces:
> 
> -----
> # kldload if_bridge
> # ifconfig bridge0 create
> bridge0: Ethernet address: e6:02:10:1c:bc:22
> # ifconfig bridge0 destroy
> 
> panic: _rw_rlock (radix node head): wlock already held _at_ /repo/freebsd/8-CURRENT/src/sys/net/route.c: 291
> -----

This is now fixed, just update.

Andrew