Same problem. Supermicro H13SSL-NT motherboard. Latest firmware/bios from Supermicro: Firmware: 01.03.11 (2025-02-18) BIOS: 3.4 (2025-02-13)
Single socket AMD EPYC 9124 (16 cores) Microcode: 0xa101154 Boot from released server livecd: ubuntu-25.04-live-server-amd64.iso Gets past grub, starts booting, hangs before installer launches, reboots automatically. Additionally I see lines like this in the BMC web console: 2025-04-20 18:31:19 ProcessorConfiguration [PC-0153] Configuration error - CPU 1 EX Uncorrectable error - Assertion Boots now with "mce=off pci=noaer" (both, not with either one alone) with kernel 6.14.0-15 (from installer live cd). Earlier ubuntu 25.04 beta livecd's caused hard lockup + BMC error message like above, unable to reboot/powercycle system from BMC, required physically yanking power cables... This system had no issues earlier, and worked fine with Ubuntu kernels 6.2.x, 6.5.x, 6.8.x and 6.11.x. This system also runs fine on Fedora 41, with kernels 6.13.x and 6.15.x, - but none of the 6.14.x kernels from Fedora 42. Unable to capture anything useful without mce=off and pci=noaer, web console and serial console just stops when it hangs without printing anything before reboot... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2106553 Title: Epyc Genoa system unable to boot starting with Kernel 6.14.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2106553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
