Hi folks,

I sent an email to this list a few days ago about my dual PII/266 Tyan
system locking up under high load (like two seti clients) with the 2.2
kernel (most recently 2.2.14).  The symptoms are a complete freeze at
the console (in X or not) and the only way to get in is via telnet from
another machine.  A steady flow of incoming network traffic (like PING)
will temporarily alleviate the 'lock'.  

I have just discovered something with a little experimentation.  If I
use the BIOS to set the L1 cache of the CPU's to 'disable' or 'write
through' as opposed to 'write back', then I eliminate the SMP locking
problem but suffer a terrific hit in performance in X.  I was a bit
surprised at this finding and wonder if anyone has any ideas.  Is there
any hope of enabling SMP without suffering such a performance hit or
should I just drop it and be happy with a single, stable PII.

thanks for your help,

Dave
-- 
Linux, the choice of a GNU generation

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