Kernel error on CD-RW/DVD ROM

[christian.peper at kpn.com]

We have been getting the same errors. No idea what's causing it either and unable to solve it.
As with you, these are busy servers too. Either production or heavy testing.

I've tried to list my problems on my blog. Dell mentioned a DMA setting but it didn't make a difference.
http://breakablelinux.blogspot.com/2008/12/irq-timeout-and-busy-message-for-cd-rom.html

Chris.

________________________________
From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Clark, Patti
Sent: Monday, April 13, 2009 8:20 PM
To: linux-poweredge at dell.com
Subject: Kernel error on CD-RW/DVD ROM


I have a 2950 running RHEL4.7 that has been getting the following errors in its logs.  They had been rather infrequent - every 3-6 months, but have been occuring more often lately and are now daily.  /dev/hda is my CD-RW/DVD ROM drive and is not in use when these messages are generated.

Apr  9 10:18:18 servera kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Apr  9 10:18:18 servera kernel: hda: status error: error=0x00
Apr 10 23:31:02 servera kernel: hda: status error: status=0x50 { DriveReady SeekComplete }
Apr 10 23:31:02 servera kernel: hda: status error: error=0x00

I've searched the net several times, but have not found anything similar enough to give me an idea as to how to address this issue or what level of concern to give it.  We don't use OMSA and generally don't upgrade firmware unless necessary.  The server also has a Perc 5/i controller for the internal SAS drives, RAID 5 configuration.  It is a busy production server.  I'm looking for any idea that will help me trouble-shoot this.

TIA,
Patti Clark - RHCT, GSEC
Sr. Linux/UNIX System Administrator
Office of Scientific and Technical Information
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