Dell Precision Workstation 530

Dell Precision Workstation 530

[Steve Wanzong]

Hello,

We have been experiencing system crashes on our Dell PW 530.  This is a 
dual xeon cpu system (2.4GHZ).  At first I was seeing errors with the 
cdrom.  I disabled the power to the cdrom.  I am running Red Hat 7.2, 
with the 2.4.7-10smp kernel.  The crashes are less frequent, but do 
happen.  The only thing I see in the messages file is:

testing the IO APIC.......................
Oct  3 09:08:23 xxxx kernel:
Oct  3 09:08:23 xxxx kernel:  WARNING: unexpected IO-APIC, please mail
Oct  3 09:08:23 xxxx kernel:           to linux-smp@vger.kernel.org
Oct  3 09:08:23 xxxx kernel:  WARNING: unexpected IO-APIC, please mail
Oct  3 09:08:23 xxxx kernel:           to linux-smp@vger.kernel.org
Oct  3 09:08:23 xxxx kernel: .................................... done.

What is it that you would like to see?  If I can send more info, please 
let me know.

Thanks in advance.
-- 
Steve Wanzong                      Internet: stevew@ssec.wisc.edu
UW-Madison/SSEC                    Phone:  (608)263-1950
1225 West Dayton Street
Madison, WI 53706

Re: Dell Precision Workstation 530

[Alan Cox]

On Thu, 2002-10-10 at 15:18, Steve Wanzong wrote:
> Hello,
> 
> We have been experiencing system crashes on our Dell PW 530.  This is a 
> dual xeon cpu system (2.4GHZ).  At first I was seeing errors with the 
> cdrom.  I disabled the power to the cdrom.  I am running Red Hat 7.2, 
> with the 2.4.7-10smp kernel.  The crashes are less frequent, but do 

2.4.7-10 is very very old. 7.2 has errata kernels and you should
upgrade. If your system supports hyperthreading you should probably
consider updating to a reasonably recent kernel to get HT support

Re: Dell Precision Workstation 530

[Niall Dalton]

On Thu, 2002-10-10 at 08:04, Alan Cox wrote:
> On Thu, 2002-10-10 at 15:18, Steve Wanzong wrote:
> > Hello,
> > 
> > We have been experiencing system crashes on our Dell PW 530.  This is a 
> > dual xeon cpu system (2.4GHZ).  At first I was seeing errors with the 
> > cdrom.  I disabled the power to the cdrom.  I am running Red Hat 7.2, 
> > with the 2.4.7-10smp kernel.  The crashes are less frequent, but do 
> 
> 2.4.7-10 is very very old. 7.2 has errata kernels and you should
> upgrade. If your system supports hyperthreading you should probably
> consider updating to a reasonably recent kernel to get HT support

Is there a recommended kernel(+patch set) for hyperthreading machines?
For example, one with if one wants to use Ingo Molnar's recent
scheduler improvements for hyperthreading?

Regards,
niall

Re: Dell Precision Workstation 530

[Alan Cox]

On Thu, 2002-10-10 at 19:14, Niall Dalton wrote:
> Is there a recommended kernel(+patch set) for hyperthreading machines?
> For example, one with if one wants to use Ingo Molnar's recent
> scheduler improvements for hyperthreading?

The RH 7.3 kernel has Ingo O(1) scheduler (but not HT aware versions
yet) and the stuff needed both for HT and to fix random segfaults on SMP
PIV

Re: Dell Precision Workstation 530

[Niall Dalton]

On Thu, 2002-10-10 at 14:18, Alan Cox wrote:
> The RH 7.3 kernel has Ingo O(1) scheduler (but not HT aware versions
> yet) and the stuff needed both for HT and to fix random segfaults on SMP
> PIV

Would you suggest it over RH 8.0 for HT? Does the 8.0 kernel have
the HT aware stuff?

Thanks,
niall

Re: Dell Precision Workstation 530

[Alan Cox]

On Mon, 2002-10-14 at 17:46, Niall Dalton wrote:
> On Thu, 2002-10-10 at 14:18, Alan Cox wrote:
> > The RH 7.3 kernel has Ingo O(1) scheduler (but not HT aware versions
> > yet) and the stuff needed both for HT and to fix random segfaults on SMP
> > PIV
> 
> Would you suggest it over RH 8.0 for HT? Does the 8.0 kernel have
> the HT aware stuff?

7.3 errata and 8.0 are the same kernel 8)