On Sun, 24 Jan 1999, Peter Wemm wrote: [..] > Oh, one other thing that occurred to me.. Under 4.0-current, I regularly > (ie: within 30 seconds of boot) get if_de tranmitter underflows. My > console corruption was happening at the instant that de0 was being > configured with ifconfig. exmh is running to a remote display over that > de0 interface.
Here too... pretty quickly after boot on a SMP machine (current as of Jan 12) that pushes quite a bit of traffic, the following messages appear: de0: abnormal interrupt: transmit underflow (raising TX threshold to 96|256) de0: abnormal interrupt: transmit underflow (raising TX threshold to 128|512) de0: abnormal interrupt: transmit underflow (raising TX threshold to 160|1024) The card is: de0: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 16 on pci0.12.0 de0: 21140A [10-100Mb/s] pass 2.2 de0: address 00:c0:f0:1f:5d:0d de0: enabling Full Duplex 100baseTX port Actually a Kingston clone, not a real DEC (so 1/5th of the price - but the receiver doesn't go audibly *click* when it's autosensing). So far I've gotten this message once: de0: abnormal interrupt: transmit underflow (switching to store-and-forward mode) Any harm in them, or can I safely ignore them? Would it be a good idea to raise the TX threshold by default, if only to avoid the messages? It's plugged into a Catalyst switch, if it makes any difference... -- Niels. To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message