Users Guide

This issue is resolved in Red Hat Enterprise Linux 5 update 9.
Issues Fixed in Red Hat Enterprise Linux 5 Update 8
This section contains information about issues, resolutions, and workarounds when using Red Hat Enterprise Linux 5
Update 8 on your Dell system.
Ipfc Driver Throws Timeout Error Messages in Runlevel 3 With Red Hat Enterprise Linux 5
Update 8
Description
The lpfc driver displays the following timeout error messages in runlevel 3 with Red Hat
Enterprise Linux 5 Update 8:
lpfc 0000:03:00.1: 1:2813 Mgmt IO is Blocked d00 -mbox cmd 5
still active
lpfc 0000:03:00.1: 1:(0):2530 Mailbox command x5 timeout Data:
x0 x700 xffff81007e992400
lpfc 0000:03:00.1: 1:0345 Resetting board due to mailbox
timeout
Workaround
1. In the file /etc/modprobe.conf, append the line
options lpfc lpfc_use_msi=2
.
2. Reload driver with the command modprobe -r lpfc ; modprobe lpfc
3. Run the following command to make the changes permanent:
#mkinitrd /boot/initrd-2.6.18-274.el5.img 2.6.18-274.el5
Cause The default interrupt configuration for the Emulex LPFC FC/FCoE driver in Red Hat Enterprise
Linux 5.x, Red Hat Enterprise Linux 6 update 1, and earlier operating systems is INT-X. While
loading the driver, the kernel disables MSI-X interrupt mode and uses INT-X mode.
A USB Cable Error Message Is Displayed After Installing Red Hat Enterprise Linux 5
Update 7
Description On installing Red Hat Enterprise Linux 5 update 7 and connecting to a low speed USB device,
run the command #dmesg|grep -i bad. The following message is displayed:
hub 1-1.6:1.0: Cannot enable port 1. Maybe the USB cable is
bad?
Cause This issue occurs when a low speed device such as a USB keyboard or mouse is connected to
the top USB port (Port 1) on the back panel of the system. There is no loss in functionality.
An ACPI Error Message Is Displayed After Installing Red Hat Enterprise Linux 5 Update 7
Description An ACPI error message is displayed after installing Red Hat Enterprise Linux 5 update 7.
1. Load the BIOS default to: System Profile Settings:OS.
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