RE: kernel: aacraid: Host adapter reset request. SCSI hang ?

On Tue, 10 Jun 2003, Vincent Blondel wrote:

> Because I have the same problem ( see my post earlier
> ), I don't understand where you disable this
> hperthreading functionality ( maybe it is only for PIV
> or a DELL server). I have a bi-processor Athlon MP,
> can I do the same and finally, is that sure our
> problem comes with this.

Either boot with:

linux noht

at the Lilo prompt or press "a" in grub and add 'noht' to the
boot arguments for your kernel.

To make this a permenant change, in /etc/lilo.conf add append="noht" or if
you use grub add noht to the end of the kernel line.

Regards
James Bourne

> 
> Thanks ...
> vincent
> 
> --- Javier Rodriguez <jlr-slrnY02Ltykg9ELcbhaJlAC/[email protected]> wrote:
> >  
> > With HyperThreading disabled, I was able to run with
> > RedHat
> > kernel-smp-2.4.20-13.9 for 4 days without a problem.
> > The second server
> > executing RedHat kernel-2.4.20-13.9 with
> > HyperThreading disabled has been up
> > for 6 days.
> >  
> > Javier
> > 
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On
> > Behalf Of Javier Rodriguez
> > Sent: Thursday, June 05, 2003 10:05 PM
> > To: [email protected]; [email protected]
> > Cc: [email protected];
> > [email protected]
> > Subject: RE: kernel: aacraid: Host adapter reset
> > request. SCSI hang ?
> > 
> > 
> > I have the following update regarding testing with
> > our two 2650 servers
> >  
> > - With HyperThreading enabled, I was able to execute
> > RedHat kernel-2.4.20-9
> > for 72 hours without a problem on both servers.
> > - With HyperThreading disabled, I was able to
> > execute RedHat
> > kernel-2.4.20-13.9 for 49 hours without a problem on
> > both servers.
> >  
> > This evening, I switched one of our 2650 servers to
> > execute RedHat
> > kernel-smp-2.4.20-13.9 with HyperThreading disabled.
> > With HyperThreading
> > enabled, this version would normally fail us in less
> > then 24 hours (no
> > longer than 48 hours), so well see what happens.
> > After the reboot, I did not
> > receive the 'Can't get RTC IO port" message in the
> > dmesg log.
> >  
> > The other 2650 server is still executing RedHat
> > kernel-2.4.20-13.9 with
> > HyperThreading disabled.
> >  
> > Javier
> >  
> >  
> > 
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On
> > Behalf Of
> > [email protected]
> > Sent: Thursday, June 05, 2003 8:08 PM
> > To: [email protected]
> > Cc: [email protected]
> > Subject: FW: kernel: aacraid: Host adapter reset
> > request. SCSI hang ?
> > 
> > 
> > Follow the path, seems we have problem with aacraid
> > or scsi layer in smp
> > kernels and possibly hyperthreading.
> > Steve
> > -----Original Message-----
> > From: eric.rietjens-//[email protected]
> > [mailto:eric.rietjens-//[email protected]]
> > Sent: Wednesday, June 04, 2003 1:38 AM
> > To: Boley, Steve
> > Subject: RE: kernel: aacraid: Host adapter reset
> > request. SCSI hang ?
> > 
> > 
> > 
> > No openmanage software has been installed on our
> > 2650 servers. 
> > 
> > The server with the SMP kernel but without
> > hyperthreading is still running
> > without problems (and it also produces the "Can't
> > get RTC IO port" message).
> > 
> > 
> > Eric. 
> > 
> > 
> > 
> > 	
> > 
> > 
> > 
> > 
> > [email protected] 
> > 
> > 
> > 03-06-2003 16:00 
> > 
> > 
> >         
> >         To:        Eric
> > Rietjens/EHV/TASS/PHILIPS@EMEA3 
> >         cc:         
> >         Subject:        RE: kernel: aacraid: Host
> > adapter reset request.
> > SCSI hang ? 
> > 
> >         Classification:         
> > 
> > 
> > 
> > 
> > 
> > Do you have the openmanage loaded?  If so see if it
> > does it without it
> > loaded. 
> > Steve 
> > -----Original Message-----
> > From: eric.rietjens-//[email protected]
> > [mailto:eric.rietjens-//[email protected]]
> > Sent: Tuesday, June 03, 2003 6:58 AM
> > To: linux-poweredge-Lp/cVzEoVyZskZv2Y/7f+AC/[email protected]
> > Subject: Re: kernel: aacraid: Host adapter reset
> > request. SCSI hang ?
> > 
> > 
> > I have similar problems with three of our 2650
> > servers. If I use the SMP
> > kernel (2.4.18-27.7.xsmp) I can reproduce the
> > problem within 15 minutes. 
> > If I use the non-SMP kernel (2.4.18-27-7.x) the
> > problem does not occur. 
> > 
> > Today I ran some tests with the SMP kernel, but with
> > hyperthreading
> > disabled. Although not tested as extensively as  the
> > non-SMP kernel, the
> > problem 
> > does not occur any more. So the SMP-kernel without
> > hyperthreading on a 2650
> > also seems to work. 
> > 
> > If I check the kernel log messages (dmesg) there is
> > an error mesage when I
> > use the SMP kernel: "Can't get RTC IO port". This
> > message is not  generated
> > when I use the non-SMP kernel. Could this be related
> > with the RAID driver
> > problems we are seeing? 
> > 
> > 
> > Eric. 
> > 
> > 
> > 
> > 
> 
> 
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-- 
James Bourne, Supervisor Data Centre Operations
Mount Royal College, Calgary, AB, CA
www.mtroyal.ab.ca

           June 1, 2003  Mount Royal College will be changing the
                    telephone prefix from "240" to "440"

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