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On any HPE platform running SUSE Linux Enterprise Server 12 SP5 and configured with an HPE Ethernet 10/25Gb 2-port SFP28 MCX4121A-ACUT with firmware v14.29.1016 (or later) and mlx5_core inbox driver v5.0-0, configured to use bonding/teaming; a "Bank 6" Unexpected Machine Check Exception (UMCE) message similar to the following may be displayed: Critical,1895,125791,0x0023,iLO,0x044E,Power,05/31/2023 14:05:34,10582: The server could not be powered on or a server critical error occurred Critical,1895,125787,0x0005,CPU,0x0003,Hardware,05/31/2023 14:05:34,115: Uncorrectable Machine Check Exception (Processor 1, APIC ID 0x00000000, Bank 0x00000006, Status 0xB3800000'00000E0B, Address 0x00000000'00000000, Misc 0x00000000'10280000). ACTION: Update the system firmware. If the issue persists, contact support. Critical,1895,125802,0x0014,System Error,0x0005,Hardware,05/31/2023 14:05:34,116: Unrecoverable I/O Error has occurred. System Firmware will log additional details in a separate IML message entry if possible. Critical,1895,125838,0x13,ROM POST,0xFB,PCIE Error Message Output,0x00,Engineering, ,05/31/2023 14:05:35,PCIE Internal Fatal Error located at Socket number 0 Stack Number 1 LFERR = 0x2000000 The Unexpected Machine Check Exception (UMCE) message is displayed on shutdown or reboot parameters: * Bank 0x00000006 * Status 0xB3800000'00000E0B * Uncorrectable PCI Express Error Detected "may" be logged and identify the I/O card slot
Any HPE platform running SUSE Linux Enterprise Server 12 SP5 and configured with an HPE Ethernet 10/25Gb 2-port SFP28 MCX4121A-ACUT (817753-B21) with firmware v14.31.1200 (or later) and mlx5_core inbox driver v5.0-0, configured to use bonding/teaming. Note: The network adapter(s) in this document are affected by a naming standard change for HPE products to help customers quickly and easily identify the specific vendor and model while configuring HPE platforms. For more information about the name changes and for identification purposes, refer to the following Customer Notice: HPE Network Adapters - Product Renaming Framework And Plan For HPE Network Adapters
To resolve this issue perform either of the two following actions: Run the Out-Of-Box (OOB) drivers instead of the mlx5_core inbox driver v5.0-0. OR Upgrade to SUSE Linux Enterprise Server 15. Workaround As a workaround for systems where either of the actions above cannot be performed, downgrade the firmware of the HPE network adapter to version 14.29.1016 (or prior). Firmware v14.29.1016 is included in the Online Firmware Upgrade Utility (Linux x86_64) for HPE Mellanox Ethernet only adapters Version 1.0.14. Note: There is no plan for this issue to be resolved in a future firmware version for SUSE Linux Enterprise Server 12. RECEIVE PROACTIVE UPDATES : Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively in your e-mail through HPE Support Alerts. Sign up for Support Alerts at the following URL: HPE Email Preference Center NAVIGATION TIP: For hints on navigating HPE.com to locate the latest drivers, patches and other support software downloads, refer to the Navigation Tips document. SEARCH TIP: For hints on locating similar documents on HPE.com, refer to the Search Tips document.