Re: Flaw in 3c59x.c or in Kernel?

Subject: Re: Flaw in 3c59x.c or in Kernel?
From: David Malone (dwmaloneMATHS.TCD.IE)
Date: Wed Jan 05 2000 - 04:42:53 CST

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On Tue, Jan 04, 2000 at 09:21:36AM -0500, Sonny Parlin wrote:

> eth1: Too much work in interrupt, status e481. Temporarily disabling
> functions(7b7e).

We saw this with some Linux machines in college that were connected
to busy 100Mb/s ethernet. Bill Paul is right when he says ifconfiging
down and then up fixes the hang. To work around the problem we changed
max_interrupt_work from 20 to 200 and I don't think they've seen any
hangs since. (You can find this in the .c file for the driver).

These machines were also seeing hard lockups - keyboard stopped
responding. This seemed to stop too when we upped this variable.

        David.

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