"no carrier" on vr0 caused by suspend (FreeBSD 6.0)

Adriaan de Groot groot at kde.org
Mon Dec 26 13:37:15 PST 2005

On Monday 26 December 2005 17:44, Alexander Konovalenko wrote:
> recently I have upgraded my AMD Athlono-XP laptop to 6.0 STABLE,
> everything works fine, even suspending with zzz works except
> network interface vr0 which is in state "no carrier" right after wake up.
> The only thing which helps is reboot.

I just finished working on a Via C3-mini ITX box, also with a vr0 interface; 
it's not a laptop, but I felt it needed to suspend anyway. Suspend into S3 
causes the vr0 to hang on resume, in my case with regular vr0: watchdog 
timeout messages.

Solution: reset the driver.

Implementation: build a custom kernel with _no_ vr interface built in. Make 
sure vr is built as a module. In the suspend script, unload the module. In 
resume, reload it, then run rc.d/netif and rc.d/routing. For simple machines 
with uncomplicated interfaces and routing, that ought to do the trick.

These are your friends - Adem
    GPG: FEA2 A3FE Adriaan de Groot
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