OSEC

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Re: [PATCH] ping latency hack for em(4) for x60 thinkpads

From: Brad (bradcomstyle.com)
Date: Fri Aug 01 2008 - 11:06:58 CDT


On Friday 01 August 2008 11:12:50 Bob Beck wrote:
> I don't see this per-say on my X60 - but I remember specifically
> running into trouble with some of the interrupt mitigation bullshit which
> caused me to waste an infinite amount of time wading through the NFS code
> when my problem was the interrupt mitigation crap was busted - see the
> em commit of millert's from right around the hackathon time.
>
> I'm wondering if this is related to interrupt mitigation bugs
> as well - perhaps this time on the send side. What happens if
> instead of this one you turn off the interrupt mitigation stuff
> (transmit and receive) completely?
>
> -Bob

No, there is a known hardware issue with some Lenovo laptops.

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