Release Notes

IO_PAGE_FAULT messages are displayed in dmesg for
PCIe Generation 4 devices
Description: The following IO_PAGE_FAULT messages are observed in dmesg and /var/log/messages logs for PCIe
Generation 4 devices when input or output operations are performed:
AMD-Vi: Event logged [IO_PAGE_FAULT device=21:00.0 domain=0x001e
address=0x00000000f2489000 flags=0x0000]
AMD-Vi: Event logged [IO_PAGE_FAULT device=21:00.0 domain=0x001e
address=0x00000000fbbcb000 flags=0x0000]
Applies to: Red Hat Enterprise Linux 7.8 and later
Workaround: It is required to pass the iommu=pt (pass-through) kernel command-line parameter on AMD EPYC
(Rome) processor-based servers with PCIe Generation 4 devices. For more information, see Red Hat
Enterprise Linux Knowledge Base article 5320571
Systems
affected:
Dell EMC PowerEdge R6515, Dell EMC Power Edge R7515, Dell EMC PowerEdge R6525, Dell EMC
PowerEdge R7525, Dell EMC PowerEdge C6525
Tracking number: 172165
QLogic Gen7 Fibre Channel cards are not detected
with in-box drivers
Description:
While using the in-box drivers, QLogic 32-GFC cards are not detected. QLogic 32-GFC card details can
be identified by running the command lspci.
The output of the command is as follows:
Fibre Channel [0c04]: QLogic Corp. ISP2812-based 64/32G Fibre Channel to PCIe Controller [1077:2281]
Vendor ID: 1077
Device ID: 2281
Applies to: Red Hat Enterprise Linux 7.7
Cause: Red Hat Enterprise Linux 7.7 in-box drivers are not enabled for QLogic 32-GFC cards.
Workaround: Install out-of-box drivers.
Systems
affected:
Dell EMC PowerEdge yx4x and yx5x servers
Tracking number: 152635
Linux operating system fails to detect the Intel x710
card
Description:
The i40e in-box driver is not enabled to detect an Intel x710 NIC. NIC details can be identified by running
the command lspci.
The output of the command is as follows:
Ethernet controller: Intel Corporation Ethernet Controller x710 for 10GBASE-T
Vendor ID: 8086
Device ID: 15FF
Known issues 17