em0 with latest driver hangs again and again (without "Watchdog timeout" message!)

Mike Tancsa mike at sentex.net
Wed Feb 23 11:16:39 UTC 2011

On 2/23/2011 4:16 AM, Lev Serebryakov wrote:
>   Driver from "em driver, 82574L chip, and possibly ASPM" thread
>  doesn't help, really: it seems, that it decrease frequincy of hangs,

Looking at your sysctl output, you are not using the test drivers posted
in that thread.

>>> sysctl dev.em.0
dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.1.9
dev.em.0.%driver: em

It should show
dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.1.9-test

If you want to try 7.1.9-test, you can download it at
http://www.tancsa.com/if_em-8.c for releng_8.
However, there is a newer one Jack has, 7.2.2 which seems to work for me
as well so far and has additional fixes that the 7.1.9-test

cvsup to RELENG_8, then copy if_em-8.c to /usr/src/sys/dev/e1000/if_em.c


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