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:[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:[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.