Owner's Manual

Installation Instructions and Important Information 21
To work around this issue, start the installation with the following command
line option:
noapic nolapic
When both the parameters are passed, the kernel boots and the installation is
completed successfully. The parameters are only required when installing the
Red Hat Enterprise Linux 4 Update 4 and can be removed once the
installation is complete.
A fix for this issue is available in Red Hat Enterprise Linux 4 Update 5.
System Does not Respond When Running Red Hat Enterprise Linux 4 on SATA
Systems With More Than 3 GB of RAM
Red Hat Enterprise Linux 4 systems with SATA disk drives attached to 32-bit-
capable disk controllers such as the Intel ICH5, ICH6, and ICH7 onboard
SATA controllers using the ata_piix driver, and the CERC SATA 6ch RAID
cards using the aacraid driver may experience kernel panics under stress
causing potential loss of data. This is due to a defect in the bounce buffer
section of the core Red Hat Enterprise Linux 4 Memory Management (mm)
kernel code.
A temporary workaround for this issue is to restrict memory of Red Hat
Enterprise Linux 4 configuration to less than 3 GB either by physically
reducing RAM or passing the mem=<some value less than 3 GB>
parameter to the kernel command line while booting.
A fix for this issue is available in Red Hat Enterprise Linux 4 Update 5.
Illegal Seek When Rewinding Tape Drive With the tar Utility
Earlier versions of the Red Hat Enterprise Linux 4 st driver removed the
no_llseek reference to work around the tar utility's deprecated use of the
llseek ioctl.
A fix for this issue is available in Red Hat Enterprise Linux 4 Update 5.
Kernel Panic on Shutdown
An issue has been identified in which the there may be an intermittent kernel
panic during shutdown if running the snmpd daemon.
The only workaround for this issue at this time is to manually stop the snmpd
daemon before initiating a shutdown.
RHELIIG.book Page 21 Thursday, April 14, 2011 12:15 PM