Subject: Re: wm0: discarding oversize frame (len=-4)
To: None <current-users@netbsd.org>
From: Joseph A. Dacuma <jadacuma@ched.gov.ph>
List: current-users
Date: 06/28/2006 21:23:16
> I have a machine that seems to get floods of the above apparently
> rather nonsensical message when busy. There could be many reasons,
> none of which I have pursued or investigated as yet.
>
> Just wondering if anyone else has seen this or knows a cause.  Apart
> from the extra log verbosity, it doesn't seem to seriously break
> anything, but I'm sure it hurts some throughput at least.
>
> wm0 at pci0 dev 13 function 0: Intel i82541PI 1000BASE-T Ethernet, rev. 5
> wm0: interrupting at ioapic0 pin 18 (irq 11)
> wm0: 32-bit 33MHz PCI bus
> wm0: 64 word (6 address bits) MicroWire EEPROM
> wm0: Ethernet address 00:0e:0c:a9:f6:0d
> igphy0 at wm0 phy 1: Intel IGP01E1000 Gigabit PHY, rev. 0
> igphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,
> 1000baseT-FDX, auto
>
> wm0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         capabilities=2bf80<TSO4,IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Tx,UDP6CSUM_Tx>
>         enabled=0
>         media: Ethernet autoselect (1000baseT
> full-duplex,flowcontrol,rxpause,txpause)
>
> NetBSD/i386 3.99.21 from a couple of weeks ago (just after
> timecounters merge, iirc), dual-pIII MP
>
> --
> Dan.
>

I have seen this error and my complete experience on the wm driver can be
referenced on these links:

http://mail-index.netbsd.org/netbsd-users/2005/11/20/0003.html
http://mail-index.netbsd.org/netbsd-users/2005/11/30/0000.html
http://mail-index.netbsd.org/netbsd-users/2006/06/09/0000.html

Regards,

Joseph