Re: [E1000-devel] "e1000_clean_tx_irq: Detected Tx Unit Hang" errors only on pppoe connect

[snowcrash+e1000 <sch...@gm...>]

hi auke,

> Now we're down to ppp. I still notice that the tx hang is instantly - not even a
> single packet makes it out of the card apparently, which is *astounding*
>
> Can you perhaps attach a tcpdump to the interface before pppd is started?
>
> what output do you see immediately before and after the hang from `ifconfig -a` ?

i'm still fussing with tcpdump ... will get that figured out in abit :-/

>  Try (1) with no options or (2) with only TSO disabled: `ethtool -K eth0 tso off`

i tried both case (1) & (2), above, with no change -- still the same errors.

>  >       Mar 28 12:04:58 server kernel: e1000: eth0: e1000_watchdog_task: NIC
>  > Link is Down
>
>  not sure why link goes down here... ppp does that?

the line was incorrectly split in the 'quote'.  it's:

	Mar 28 15:03:29 fw kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Down

i.e., it's the "watchdog" task.

>  pending the questions above I might have you run a special driver to dump the ring
>  contents, but lets see what comes up from this first.

so, atm, i'm getting the error consistently in all scenarios tried so far.

time for the 'special driver'?

>  Thanks for taking the time to dig into this.

thanks for your help.