Users Guide

Combined residency of the ACPI C-states is low when
SUSE Linux Enterprise Server 11 is idle
Description When SUSE Linux Enterprise Server 11 is idle, the ACPI C-states, C1 and C3, are not efficiently used to save
system power consumption. The expected combined residency of these states at the idle state of the system is
between 95 and 99 percent. However, the actual used combined residency is only 50 percent.
Workaround This issue will be fixed in a future release of SUSE Linux Enterprise Server 11.
Cause This issue occurs because pmtimer overflow due to which the time of the Cx states incorrect message.
PCI-e errors on certain slots display error messages
Description When there is a hardware failure in a PCI slot or controller of the system, the PCIe Advanced Error Reporting
(PCIAER) does not report the PCI error.
Workaround Boot the system with pci=noaer as the default value, to enable the system to report the PCI error and allow
the BIOS to handle the error reporting task.
Cause This issue is caused by a bug in the PCIAER feature.
Unable to boot from remote iSCSI LUN (SUSE Linux
Enterprise Server 11 IPv6)
Description
If the IPv6 iSCSI connection between BCM 57710 NIC and the Dell EMC EqualLogic target is enabled before the
installation of the operating system, the LUN may not install the operating system.
Cause This issue occurs only in NICs that support iSCSI boot and IPv6. The DHCPv6 client daemon is not used by SUSE
Linux Enterprise Server 11 initrd. Thus, the iSCSI cannot read the IPv6 address during the system boot, which
disconnects the initiator from the IPv6 iSCSI portal of the Dell EMC EqualLogic target.
SUSE Linux Enterprise Server 11 X86_64 does not respond
as the operating system reboots in the UEFI mode
Description
If SUSE Linux Enterprise Server 11 is rebooted in the UEFI mode, the system may occasionally not respond during
the reboot.
Workaround This issue will be fixed in a future release of SUSE Linux Enterprise Server 11.
Cause This issue occurs only when the bash is running its signal handler.
PowerEdge R805, M805, and M905 systems running on
SUSE Linux Enterprise Server 11 may reboot with some
PCI or Mezzanine cards
Description
When Qlogic or Emulex fiber channel cards are present in PowerEdge R805, M805, and M905 systems, and you
load the drivers for the cards, SUSE Linux Enterprise Server 11 (and other Linux kernels later than 2.6.27) may
cause the system to reboot. The drivers are:
• qla2xxx.ko for Qlogic
• lpfc.ko for Emulex
Workaround For PowerEdge R805:
• Set the Optical Drive Controller under Integrated Devices) to On in system setup.
Important Information 15