em0 causing hangs with tso4 enabled on I219-V system

[Guido Falsi]

Hi,

As the subject states I have been seeing hangups on a machine with that
chipset [1] when using default ifconfig settings. It was hanging once
every day on average.

Following suggestions I found googling I have disabled tso4 and the
machine has been running smoothly for weeks.

I don't have any strict requirement to enable tso4 on it so I'm ok with
things as is, but I'd like to help debug and resolve the problem.

How can I help with this? Any pointers to specific data I can collect
which could be useful?

Thanks!



[1] em0 at pci0:0:31:6:	class=0x020000 card=0x86721043 chip=0x15b88086
rev=0x31 hdr=0x00

-- 
Guido Falsi <mad at madpilot.net>