Re: Any way to disable cache on Alphaserver?

From: Reinhard Eigner (antispam_at_garnix.de)
Date: 10/30/03 

Date: Thu, 30 Oct 2003 19:35:09 +0100

"Kaya Memisoglu" <k.memisoglu@majix.de> schrieb im Newsbeitrag news:bnjvar$4h1$03$1@news.t-online.com...
> Hi,
>
> I have got an Alphaserver 1000A 4/266, but I suspect that the bcache
> doesn't work as it should. At least I can't get NetBSD boot, my screen
> is full of messages of the type "Warning: Processor correctable error
> detected." But when I test my memory at the SRM console, there is not
> problem. I also tried to switch memory modules etc... I really tried
> a lot, bot neither NetBSD nor debian Linux wants to install. Plus I
> also get those errors when I run "test" at the SRM console - but when
> I only run "memtest" or "disktest" I don'get these errors. So I really
> suspect its the cache.
>
> Now, is there any way of disabling the whole bcache? At least it would
> be interesting for finding the source of my troubles with the machine.
>
> - Kaya

Yes, there's a way. On the CPU-Board is a jumper block (J1). One setting on
this jumper block disables the b-cache.
I think it's position 4 but I don't know it sure.