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Initial failure - unexpected reboot reported by monitoring. Mar 8 00:07:45 db-server-007 systemd: Started Delayed Shutdown Service. Mar 8 00:07:45 db-server-007 systemd-shutdownd: Shutting down at Sat 2025-03-08 00:07:45 EST (reboot)... Mar 8 00:07:45 db-server-007 multipathd: mpatha: stop event checker thread (140737354106624) Mar 8 00:07:45 db-server-007 multipathd: --------shut down------- Mar 8 00:07:46 db-server-007 systemd: Stopped dnf makecache --timer. Mar 8 00:07:46 db-server-007 systemd: Stopping Xinetd A Powerful Replacement For Inetd... Host begins booting and crashes before the user space starts. Mar 8 00:34:13 db-server-007 kernel: Linux version 4.18.0-553.33.1.el8_10.x86_64 (user8@customer-domain03.com) ... Mar 8 00:34:13 db-server-007 kernel: Command line: BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-553.33.1.el8_10.x86_64 root=/dev/mapper/rootvg-lv_root ro spectre_v2=retpoline rd.lvm.lv=rootvg/lv_root rd.lvm.lv=rootvg/lv_swap1 nomodeset rhgb quiet crashkernel=auto transparent_hugepage=never Mar 8 00:34:13 db-server-007 kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' VMcore analysis highlights scini as the faulting module. crash> log [..] [173004.667762] BUG: unable to handle kernel paging request at ffff98cd0b4c7ff0 [173004.667871] PGD 1803fdfb067 P4D 1803fdfb067 PUD 10707453063 PMD 101e768c063 PTE 800ffef8f4b38060 [173004.667991] Oops: 0000 1 SMP NOPTI [173004.668081] CPU: 156 PID: 10169 Comm: net_sched Kdump: loaded Tainted: P OE -------- - - 4.18.0-553.33.1.el8_10.x86_64 #1 [173004.668204] Hardware name: HPE ProLiant DL580 Gen10/ProLiant DL580 Gen10, BIOS U34 11/24/2021 [173004.668319] RIP: 0010:API_kvec_get_base+0x5/0x10 [scini] Impact • Host reboots without warning, causing service interruption until the machine finishes the automatic reboot cycle. • Any application I/O in flight is interrupted; while PowerFlex prevents data loss, databases or applications may require crash-recovery on restart. • Repeated panics can cause prolonged downtime if the driver continues to load an incompatible binary after each reboot.
During the SDC code, refactor for the 3.6.3 self-compile feature, a bug was introduced in the code that prepares data for send on a socket. Due to this bug, under certain conditions (the status of the socket buffers and memory layout in general), an invalid memory read may occur, resulting in the given kernel panic.
Verify current kernel and SDC versions: uname -r rpm -qa |grep -i SDC Option A: Upgrade the SDC package to a release that natively supports the new kernel (3.6.5 or later recommended). Option B : Recompile the existing SDC module for the running kernel (use when an immediate driver upgrade is not possible): PowerFlex: On-Demand compilation of PowerFlex SDC drivers on Linux Reboot once to validate stability: sudo reboot After the reboot, there should be no further panics Impacted Versions PowerFlex Core - 3.6.4 or lower Fixed In Version PowerFlex Core - 3.6.6 and later
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