|Summary:||[em] em needs "ifconfig em0 down up" when link was gone|
|Severity:||Affects Only Me||CC:||sbruno|
Description Andre.Albsmeier 2009-12-25 18:30:01 UTC
The em0 interface mentioned above is connected to another 100MBit Ethernet device through a cross cable. Everything works until this other device is powered down and up again. In this case one can't talk to this device anymore: gate:~>ping 192.168.128.66 PING 192.168.128.66 (192.168.128.66): 56 data bytes ping: sendto: No buffer space available ping: sendto: No buffer space available ping: sendto: No buffer space available ... After running "ifconfig em0 down up" on the FreeBSD box all is well (pinging and transferring files) until the other device has been powered down and up again. The very same hardware didn't show this problem in 6-STABLE so I assume something has changed in the em driver. Fix: Unknown, possibly a MFC of the em driver from 8-STABLE might be enough, see: http://lists.freebsd.org/pipermail/freebsd-stable/2009-November/052887.html How-To-Repeat: See above. I tried with a satellite dish receiver and another fxp-based machine as the other device.
Comment 1 Mark Linimon 2009-12-26 07:41:55 UTC
Responsible Changed From-To: freebsd-bugs->freebsd-net Over to maintainer(s).
Comment 2 Andre Oppermann 2010-08-23 18:40:59 UTC
Responsible Changed From-To: freebsd-net->jfv Over to maintainer.
Comment 3 Sean Bruno 2015-06-30 17:35:39 UTC
I don't see this happen when connected to a 100mbit switch. Assuming this is closed as fixed.