Bug 151105

Summary: SCSI errors when using aic7xxx or aic79xx with external RAID array
Product: Red Hat Enterprise Linux 3 Reporter: Mark Komarinski <mkomarinski>
Component: kernelAssignee: Tom Coughlan <coughlan>
Status: CLOSED WORKSFORME QA Contact: Brian Brock <bbrock>
Severity: high Docs Contact:
Priority: medium    
Version: 3.0CC: petrides, riel
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-03-30 15:59:34 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
messages from running with aic79xx module
none
messages from running with aic7xxx module none

Description Mark Komarinski 2005-03-14 22:37:13 UTC 
Description of problem:

System basically becomes unusable when either module is loaded and connected to
an external RAID array.  Array presents itself as a single SCSI ID with each 2TB
logical drive showing up as a separate LUN.  Errors show up with different cards
 and different cables, and only after about a minute's worth of stress testing
(I use bonnie++).

Version-Release number of selected component (if applicable):
kernel-2.4.21-27.0.2.ELsmp

How reproducible:
Every time

Steps to Reproduce:
1. Load aic7xxx or aic79xx module
2. Start bonnie++
3. Wait and monitor /var/log/messages
  
Actual results:
See attachment

Expected results:
Bonnie run to completion without error.

Additional info:
Comment 1 Mark Komarinski 2005-03-14 22:37:13 UTC 
Created attachment 111999 [details]
messages from running with aic79xx module
Comment 2 Mark Komarinski 2005-03-14 22:41:47 UTC 
Created attachment 112000 [details]
messages from running with aic7xxx module
Comment 3 Mark Komarinski 2005-03-30 15:51:06 UTC 
This bug can be closed.  Was able to trace the problem down to a problem with
Adaptec.  Dropping the speed to U160 and disabling packet transfers on the
U320-based card cleared this problem.
Comment 4 Tom Coughlan 2005-03-30 15:59:34 UTC 
Thanks for the update.