3.5.1 Matrix Server Release Notes

PolyServe Release Notes 26

1041 Mount and unmount may fail if run in parallel

If you run several mount or umount commands in parallel, an

operation may fail with the following error message:

Cannot create link /etc/mtab~

Perhaps there is a stale lock file?

The mount or umount operation will succeed; however, the

/etc/mtab file will not be updated. Run the command again to

update the file.

5024 QLogic HBA driver can disable HBAs

When the qla driver is unable to log into the FC switch for a long

period of time (about 50 minutes), the driver can disable the

HBA. When the switch is restored, the HBA remains disabled.

You will need to reboot the node to re-enable the HBA.

5814 QLogic driver can exhaust kernel memory

Under certain high-stress I/O conditions, the QLogic

FibreChannel driver can exhaust kernel memory.

This condition typically occurs while a server is running at very

high I/O rates, and is possibly triggered by storage subsystem

error recovery. During this period the system administrator may

see many messages of the form:

Apr 30 10:06:47 qar54s1 kernel: scsi(1:5:12): QUEUE FULL status

detected 0x1c-0x928, pid=128300970.

Apr 30 10:06:47 qar54s1 kernel: scsi(1:5:4): QUEUE FULL status

detected 0x1c-0x928, pid=128300892.

Kernel memory exhaustion can result in the failure of

applications or ejection of the server from the matrix. If this

condition is encountered, it is recommended that the command

tag queue depth be reduced from the default of 32 to 16 or less.

Defect

Description