impossible packet length ...

[Kostik Belousov]

On Sun, Feb 08, 2009 at 10:45:13AM +0200, Danny Braniss wrote:
> I'm reposting this to hackers, and there is some more info.
> 
> > Hi,
> > on 2 different servers, running 7.1-stable + zfs, I get this
> > error rather frequently:
> > 
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (543383918) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (1936028704) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (1869363744) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (1667787057) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (976040755) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (1953459488) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (1348825156) from 
> > nfs server sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (0) from nfs server 
> > sunfire:/dist
> > Feb  5 17:01:03 warhol-00 kernel: impossible packet length (1647208041) from 
> > nfs server sunfire:/dist
> > 
> > in this case the server is running Freebsd-7.0-stable, but I also get it when 
> > the server is a
> > netapp.
> > 
> > is there a connection?
> > 
> > thanks,
> > 	danny
> 
> going through the logs, after it happened again, I got a glimps of this:
> 
> Feb  6 18:00:13 warhol-00.cs.huji.ac.il kernel: bce0: discard frame w/o 
> leading ethernet header (len 0 pkt len 0)
> Feb  6 18:00:19 klee-05.cs.huji.ac.il kernel: nfs: server warhol-00 not 
> responding, timed out
> ...
> Feb  6 19:00:00 warhol-00.cs.huji.ac.il amd[715]: More than a single value for 
> /defaults in hesiod.local
> Feb  6 19:00:00 warhol-00.cs.huji.ac.il amd[715]: Unknown $ sequence in 
> "rhost:=${RHOST};type:=nfsl;fs:=${FS};rfs:=$huldig<C0>#^ZM-^KoM- abase"
> Feb  6 19:00:00 warhol-00.cs.huji.ac.il kernel: impossible packet length 
> (2068989523) from nfs server sunfire:/dist
> 
> which seems to point fingers at bce...

bce(4) is broken in stable, your best option is to revert to the
driver in releng 7.1.
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