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To: gentoo-alpha@g.o
From: Magnus Lindholm <linmag7@...>
Subject: Problems with SMP on Alpha UP2000+
Date: Sun, 5 Jun 2011 00:23:31 +0200
Hi,<br><br>I have a UP2000+ system with dual 21264 @ 667MHz/4MB cache 
and 2GB RAM. The system runs fine with RedHat 7.2 Linux (downloaded from
 hp website) with an 2.4 SMP kernel. However, running Gentoo with an
 SMP kernel will eventually make the system freeze (i.e make -j2 when 
building a new kernel only lasts for a 30 seconds or so). I&#39;ve also tried NetBSD-5.1, FreeBSD-6.4, and a few 
other Linux distros with the 2.6 kernel (make -j2 makes the system freeze). It
 seems like Linux kernel 2.4 is the only OS that works with SMP on my system. 
Has anyone else experienced something similar with an UP2000+ Alpha 
system? First I suspected faulty hardware, but RedHat 7.2 seems to work 
just fine so...<br>
<br>I heard somewhere that Linux going from 2.4 to 2.6 made some significant re-structuring of the 
SMP code that broke SMP support on some systems?<br><br>The system has a
 Matrox Millenium and a 3Com 3c509B Ethernet card and a SCSI disk hooked
 up to the on-board SCSI. I&#39;ve tried unplugging the NIC and a using a 
DEC PowerStorm 3D30 in stead of the Matrox Millenium, different CPU 
modules and different RAM modules. All with the same results. There are 
no error messages to be seen anywhere when the system freezes up.<br><br><br>Regards<br><br>Magnus<br>
Replies:
Re: Problems with SMP on Alpha UP2000+
-- Witold Baryluk
Re: Problems with SMP on Alpha UP2000+
-- Matt Turner
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