Date: Sun, 8 Feb 2009 13:22:59 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Danny Braniss <danny@cs.huji.ac.il> Cc: hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: impossible packet length ... Message-ID: <20090208112259.GW9427@deviant.kiev.zoral.com.ua> In-Reply-To: <E1LW5Ht-0000VH-D8@kabab.cs.huji.ac.il> References: <E1LW5Ht-0000VH-D8@kabab.cs.huji.ac.il>
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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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