Re: test10-pre1 problems on 4-way SuperServer8050

From: Tigran Aivazian (
Date: Wed Oct 11 2000 - 10:20:02 EST

Hi Mark,

On Wed, 11 Oct 2000, Mark Hemment wrote:

> Hi Tigran,
> On Wed, 11 Oct 2000, Tigran Aivazian wrote:
> > a) one of the eepro100 interfaces (the onboard one on the S2QR6 mb) is
> > malfunctioning, interrupts are generated but no traffic gets through (YES,
> > I did plug it in correctly, this time, and I repeat 2.2.16 works!)
> I saw this the other week on our two-way Dell under a reasonibly heavy
> load - but with 3c59x.c driver, the eepro100s survived!
> Either NIC (had two Tornados) could go this away after anything from 1
> to 36 hours of load. They would end up running in "poll" mode off the
> transmit watchdog timer.
> Swapped them for a dual-port eepro100 and no more problems.

I disabled eepro100 support completely and the problem is still
there. What I also noticed is that with highmem-PAE enabled I get BUG in
page_alloc.c at line 221 so it is probably a VM problem recently
introduced (hence cc'd Rik).

I will continue to narrow down by removing some things (like mtrr) from
the equation. Rik, the problem is that when one enables PAE (or just
highmem-4G) support on a 4-way 6G RAM machine becomes 38-40 times slower.


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