https://bugzilla.novell.com/show_bug.cgi?id=242063 Summary: SLES10 - Error message from SYNC CACHE cmd fills up kernel log Product: SUSE Linux 10.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: sumant.patro@lsi.com QAContact: qa@suse.de CC: rbowns@novell.com This issue is with ref to SLES 10. MegaRAID (MR) Adapter is exposing VDs (Logical Disks) with WCE enabled in Mode Sense command for drives that are configured as WriteBack by the user. When the VDs are exported as Write Back drives, SLES 10 OS is sending “Synchronize Cache” command to the drives frequently. Per SCSI Spec, this command is an optional command and MR firmware is rejecting this command as unsupported (Write back is enabled only when battery is available and MR firmware do flush cache frequently). Looks like OS do not like rejecting the command on a boot volume and so adding the following event message to the event log each time the call is failed. These messages are flooded by OS and is causing annoyance to the user. 1. As this is within the SCSI compliance, we would like the OS should handle the failure case more gracefully. 2. Shouldn't the OS stop sending the sync cache cmd if it sees it is "Failed" with "Invalid Command" in sense info ? Message from the log : Jan 12 17:58:06 linux-nxso kernel: FAILED Jan 12 17:58:07 linux-nxso kernel: status = 1, message = 00, host = 0, driver = 08 Jan 12 17:58:07 linux-nxso kernel: <6>sd: Current: sense key: Illegal Request Jan 12 17:58:07 linux-nxso kernel: Additional sense: Invalid command operation code -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.