Messages in this thread | | | Date | Tue, 16 Sep 2003 16:13:17 +0200 | From | Stephan von Krawczynski <> | Subject | Re: experiences beyond 4 GB RAM with 2.4.22 |
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On Tue, 16 Sep 2003 09:55:36 -0400 (EDT) "Richard B. Johnson" <root@chaos.analogic.com> wrote:
> Can you explain what you mean by "network connections go bogus".
Sure. Do this:
Use a controller (like 3ware) that cannot DMA beyond a 4 GB range. Now put some GBs of data onto that and start to tar the data around on the same disk. While doing this you can watch network go crazy and drop packets at will. You can of course force the whole setup further by (trying) additional nfs-action, but this is really not needed. Just about the same thing can be experienced if you do a simple find all over the disk. CPU load explodes and network is _dead_. To try this you need some GBs of data, a box with more than 4 GB ram, 3ware controller and a usual SuSE 8.2. Wait until after midnight for "updatedb" to run and try to login during that time ;-) "Works" with out-of-the-box equipment and distro :-)
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