Release Notes

Issues and Resolutions
SUSE Linux Enterprise Server 12 SP3 does not
respond under web stress
Description: On Dell EMC 14
th
generation of PowerEdge servers with AMD EPYC processors, SLES12 SP3 does not respond
under web stress. OS logs indicate kernel crash with many page_faults and cpu-recovery failures.
Applies to: SUSE Linux Enterprise Server 12 SP3 on R7425, R7415, and R6415
Solution: Update the kernel to version 4.4.103-6.33.1.x86_64.rpm or later.
Turbostat displays an input/output error with AMD
processor
Description:
On Dell EMC's 14
th
generation of PowerEdge servers with Advanced Micro Devices (AMD) processor, if you run
the Turbostat utility with the Debug option, the system displays an input/output error.
Cause: Turbostat reads the Intel's model-specic registers (MSRs) on AMD platforms.
Workaround: Update the cpupower package to cpupower -4.10-3.3.1 or later.
SUSE Linux Enterprise Server 12 Service Pack 3
displays an error message in dmesg logs with AMD
processor
Description:
On Dell EMC's 14
th
generation of PowerEdge servers with Advanced Micro Devices (AMD) processor having PERC
controller, after booting into SUSE Linux Enterprise Server 12 Service Pack 3, the following error message is
displayed in the kernel logs:
"AMD-Vi: Event logged [IO_PAGE_FAULT device= domain= address= flags= "
Cause: Driver megaraid_sas allocates 256 byte of length for MFI frames but while sending MFI frames to rmware, the
driver sets the length as 4k. This causes DMA read error messages during boot.
Solution: Update the kernal to version 4.4.103-6.33.1.x86_64.rpm or later.
Installer is unable to auto detect the FCoE LUN
connected to QLogic FastLinQ cards
Description:
When installing SUSE Linux Enterprise Server 12 Service Pack 3 on FCoE LUN connected using Qlogic FastLinQ
cards, the installer does not detect the LUN and results in installation failure.
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6 Issues and Resolutions