em drv troubles

I believe the em man page needs a revision, the tunable sections referres to 
hw.em. and should be dev.em. 

hw.em.tx_int.delay defaults to 64 according to the man page but my server show 
66 as for other values too:

dev.em.1.tx_int_delay: 66
dev.em.1.rx_abs_int_delay: 66
dev.em.1.tx_abs_int_delay: 66

what is correct and how much does it matter?


I get sporadic freezes, sometimes after an hour and sometimes after some days 
of uptime,  with no log and rare times a panic which then point to em in the 
kernel but can not get a core dump, seems the machine freezes before the 
panic msg ends

I run amd64 with opterons and tyan MBs, to check if this has something to do I 
could repeat the problem on AM2 X2 MB with Sata disk but same nics and low 
traffic (1-2MB/s).

somebody has an idea here?

-- 

João







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