[olug] Need guru help

Matthew G. Marsh mgm at midwestlinux.com
Mon Jun 17 19:42:59 UTC 2002


On 17 Jun 2002, Carl Lundstedt wrote:

> Hey OLUG & HLUG,
> Ok, so I've set up a server for my research group at UNL.  It's a dual
> PIII 1GhZ machine on a Tyan motherboard.  I had to recompile the kernel
> to get the built in promise RAID controller to at least act like an ide
> controller.  (I used Mandrake 8.2 as a launching point since I'm
> familiar with it's server setups. RH 7.3 gave me fits.)
>
> With the custom kernel build I get the following errors (warnings?)
> intermittently (shows up in /var/log/messages)

What kernel version - and below by stock I assume you really mean "Vendor
Patched" kernel?

> Jun 17 08:28:06 crop kernel: APIC error on CPU0: 02(04)
> Jun 17 08:28:06 crop kernel: APIC error on CPU1: 04(08)

Is your system BIOS fully MP 1.4 compliant? If you have a choice of MP
versions try setting the version to 1.4 (assuming a 'true' stock kernel)
and then seeing. If you still get the errors then try 1.1 - if the errors
go away with 1.1 bummer as that would imply you have a single APIC vector
table. 8-{

> I didn't see these with with the stock SMP kernel.  I can change the
> frequency by monkeying with some kernel settings before recompile (these
> errors were coming in every 15 seconds), but I'm not sure (now) what
> settings helped curb them (I may have just shut down the APIC
> reporting.)

What settings - and 'stock' = ????

> a) Do I need to worry about these?  I've seen on the web that these
> don't mean anything if the system is stable (but I have had some
> weirdness with this machine, in particular lost interrupts and lost
> ethernet cards, but these have cleared up since the last
> re-config/recompile).  What do these errors mean?
>
> b) What can I do about this?
>
> c) Why wouldn't these show up in the stock smp kernel?
>
> d) other thoughts?
>
> If it would help, I can send a partial .config for the kernel.
>
> Carl Lundstedt
> UNL
>
>
>
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--------------------------------------------------
Matthew G. Marsh,  President
Paktronix Systems LLC
1506 North 59th Street
Omaha  NE  68104
Phone: (402) 932-7250
Email: mgm at midwestlinux.com
WWW:  http://www.midwestlinux.com
--------------------------------------------------


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