greg wrote:
>
> The system hasn't been upgraded to 2.2 since it is an active server, and
> today's downtime due to this upgrade is really hurting. The next step is
> to upgrade to 2.2, but that will be a weekend when I can do a proper
> backup and redo the partitions and then restore on a new system. Plus I
> will have to validate a lot of custom programs to make sure they all work
> on the new system -- that's why it is still at 2.0.
>
> Anyone have any ideas or help? Is the DPT driver just not SMP capable in
> 2.0 kernels? Or is there something else going on I need to worry about.
I am using the DPT-Driver with linux-2.2.5 and it is working properly.
(But this won't help you).
The problem is that Linux-SMP with 2.0.x kernels is somehow obsolete.
SMP is far more stable with 2.2.x kernels but the problem is that the
DPT driver exists only for linux-2.2.5 and all kernels < 2.2.11 (I
think) are vulnerable to DoS attacks. Patching a new kernel (e.g.
2.2.14) is probably possible but would cost a lot of time as patching
does not work "out of the box".
AFAIK the new 2.3 and also the 2.4 kernels implement a I2O driver that
will replace the DPT-Drivers and will be available in any linux kernel.
So I would recommend you to think about waiting for linux-2.4 or (if you
like being risky) using a 2.3 kernel but I have no experiences about the
stability of these.
Best Regards,
Hermann
--
Hermann Himmelbauer
E-Mail: [EMAIL PROTECTED]
Addr. : A-3400 Klosterneuburg, Martinstr. 18/2 Austria (Europe)
Tel. : ++43-2243-26562, ++43-2243-22305-24, Fax: ++43-2243-22305-27
-
Linux SMP list: FIRST see FAQ at http://www.irisa.fr/prive/dmentre/smp-howto/
To Unsubscribe: send "unsubscribe linux-smp" to [EMAIL PROTECTED]
