The last time it hung, 'netstat -n -i' showed:
"
Name Mtu Network Address Ipkts Ierrs Idrop Opkts
Oerrs Coll
em0 1500 <Link#5> 00:25:90:31:82:46 355482 10612864185945 0
291109 3032246910270 1516123455135
"
That's from about 30 seconds after the interface 'stopped' - that number of
ierrs/oerrs etc. - is just impossible for the traffic the machine handles,
it looks like it's corrupt?
Having dug around some more - I've now set:
hw.em.enable_msix=0
After rebooting - the hang hasn't happened since - I'll leave it running
like that for a while.
If anyone can suggest anything to run when / if this happens again to track
things down further - or any reason why it's doing it, that'd be great..
-Karl
ps. Should have said before but the machine is running an amd64 kernel.
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