My servers run Fedora 34, with latest kernels. Updating to any of minimally- or un- patched 5.12.17 or 5.13.4 hangs/fails, as follows. On just one server , an old ASRockRack J1900D2Y (quad-core Celeron) motherboard build, hwinfo --bios 01: None 00.0: 10105 BIOS [Created at bios.186] Unique ID: rdCR.lZF+r4EgHp4 Hardware Class: bios BIOS Keyboard LED Status: Scroll Lock: off Num Lock: off Caps Lock: off Serial Port 0: 0x3f8 Base Memory: 626 kB PnP BIOS: @@@0000 MP spec rev 1.4 info: OEM id: "A M I" Product id: "ALASKA" 4 CPUs (0 disabled) SMBIOS Version: 2.8 BIOS Info: #0 Vendor: "American Megatrends Inc." Version: "P1.10" Date: "01/23/2015" Start Address: 0xf0000 ROM Size: 8192 kB Features: 0x0d03000000013f8b9880 PCI supported BIOS flashable BIOS shadowing allowed CD boot supported Selectable boot supported BIOS ROM socketed EDD spec supported 1.2MB Floppy supported 720kB Floppy supported 2.88MB Floppy supported Print Screen supported 8042 Keyboard Services supported Serial Services supported Printer Services supported ACPI supported USB Legacy supported BIOS Boot Spec supported System Info: #1 Manufacturer: "To Be Filled By O.E.M." Product: "To Be Filled By O.E.M." Version: "To Be Filled By O.E.M." Serial: "To Be Filled By O.E.M." UUID: 03000200-0400-0500-0006-000700080009 Wake-up: 0x06 (Power Switch) Board Info: #2 Manufacturer: "ASRock" Product: "J1900D2Y" Type: 0x0a (Motherboard) Features: 0x09 Hosting Board Replaceable Chassis: #3 ... with Fedora34 Kernel <= Fedora (5.12.15-300.fc34.x86_64) 34 (Thirty Four) the box boots/runs OK, [ 0.000000] microcode: microcode updated early to revision 0x838, date = 2019-04-22 [ 0.000000] Linux version 5.12.15-300.fc34.x86_64 (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc (GCC) 11.1.1 20210531 (Red Hat 11.1.1-3), GNU ld version 2.35.1-41.fc34) #1 SMP Wed Jul 7 19:46:50 UTC 2021 [ 0.000000] Command line: BOOT_IMAGE=(mduuid/5687b25f8f25671a243a83cb661f7841)/vmlinuz-5.12.15-300.fc34.x86_64 root=/dev/mapper/VG0-LV_ROOT ro i915.modeset=1 vconsole.keymap=us vconsole.font=eurlatgr vconsole.font_map=trivial domdadm_ [ 0.000000] x86/fpu: x87 FPU will use FXSAVE [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009dfff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009e000-0x000000000009efff] reserved [ 0.000000] BIOS-e820: [mem 0x000000000009f000-0x000000000009ffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000020000000-0x00000000200fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000020100000-0x000000006d66cfff] usable [ 0.000000] BIOS-e820: [mem 0x000000006d66d000-0x000000006d69cfff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006d69d000-0x000000006d6acfff] ACPI data [ 0.000000] BIOS-e820: [mem 0x000000006d6ad000-0x000000006d7f1fff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x000000006d7f2000-0x000000006db80fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006db81000-0x000000006db81fff] usable [ 0.000000] BIOS-e820: [mem 0x000000006db82000-0x000000006dbc3fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006dbc4000-0x000000006dd31fff] usable [ 0.000000] BIOS-e820: [mem 0x000000006dd32000-0x000000006dff9fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006dffa000-0x000000006dffffff] usable [ 0.000000] BIOS-e820: [mem 0x00000000e00f8000-0x00000000e00f8fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fed01000-0x00000000fed01fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000ffb00000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000047fffffff] usable [ 0.000000] printk: console [earlyser0] enabled Memory KASLR using RDRAND RDTSC... Poking KASLR using RDRAND RDTSC... Welcome to Fedora 34 (Thirty Four) dracut-055-3.fc34 (Initramfs)! [ OK ] Started Dispatch Password …ts to Console Directory Watch. [ OK ] Reached target Local File Systems. [ OK ] Reached target Path Units. ... Fedora 34 (Thirty Four) Kernel 5.12.15-300.fc34.x86_64 on an x86_64 (ttyS0) srv01 login: ... lsb_release -rd Description: Fedora release 34 (Thirty Four) Release: 34 uname -rm 5.12.15-300.fc34.x86_64 x86_64 updating to any of minimally- or un- patched, Fedora (5.12.17-300.fc34.x86_64) 34 (Thirty Four) https://koji.fedoraproject.org/koji/buildinfo?buildID=1780670 Fedora (5.13.4-200.fc34.x86_64) 34 (Thirty Four) https://koji.fedoraproject.org/koji/buildinfo?buildID=1782334 Fedora (5.13.4-250.vanilla.1.fc34.x86_64) 34 (Thirty Four) https://fedoraproject.org/wiki/Kernel_Vanilla_Repositories https://repos.fedorapeople.org/repos/thl/kernel-vanilla-stable/fedora-34/x86_64/ https://fedorapeople.org/cgit/thl/public_git/kernel.git/tree/?h=kernel-5.13.3-250.vanilla.1.fc34 and re-gen'ing initrd, system boot hangs early in each case, [ 0.000000] microcode: microcode updated early to revision 0x838, date = 2019-04-22 [ 0.000000] Linux version 5.13.4-200.fc34.x86_64 (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc (GCC) 11.1.1 20210531 (Red Hat 11.1.1-3), GNU ld version 2.35.1-41.fc34) #1 SMP Tue Jul 20 20:27:29 UTC 2021 [ 0.000000] Command line: BOOT_IMAGE=(mduuid/5687b25f8f25671a243a83cb661f7841)/vmlinuz-5.13.4-200.fc34.x86_64 root=/dev/mapper/VG0-LV_ROOT ro i915.modeset=1 vconsole.keymap=us vconsole.font=eurlatgr vconsole.font_map=trivial domdadm b [ 0.000000] x86/fpu: x87 FPU will use FXSAVE [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009dfff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009e000-0x000000000009efff] reserved [ 0.000000] BIOS-e820: [mem 0x000000000009f000-0x000000000009ffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable [ 0.000000] BIOS-e820: [mem 0x0000000020000000-0x00000000200fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000020100000-0x000000006d66cfff] usable [ 0.000000] BIOS-e820: [mem 0x000000006d66d000-0x000000006d69cfff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006d69d000-0x000000006d6acfff] ACPI data [ 0.000000] BIOS-e820: [mem 0x000000006d6ad000-0x000000006d7f1fff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x000000006d7f2000-0x000000006db80fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006db81000-0x000000006db81fff] usable [ 0.000000] BIOS-e820: [mem 0x000000006db82000-0x000000006dbc3fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006dbc4000-0x000000006dd31fff] usable [ 0.000000] BIOS-e820: [mem 0x000000006dd32000-0x000000006dff9fff] reserved [ 0.000000] BIOS-e820: [mem 0x000000006dffa000-0x000000006dffffff] usable [ 0.000000] BIOS-e820: [mem 0x00000000e00f8000-0x00000000e00f8fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fed01000-0x00000000fed01fff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000ffb00000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000047fffffff] usable [ 0.000000] printk: console [earlyser0] enabled Memory KASLR using RDRAND RDTSC... Poking KASLR using RDRAND RDTSC... , and proceeds no further. drop-back to Fedora (5.12.15-300.fc34.x86_64) 34 (Thirty Four) boots, again, with no issues. for the Fedora (5.13.4-200.fc34.x86_64) 34 (Thirty Four) case, with logging dialed up, logs show a sloooooow boot process ( 700+ seconds and counting ), with eventual, complete hang @ "Starting Apply Kernel Variables..." --> https://pastebin.com/dP6Lm84J So far, this occurs on this J1900 box only; other-hardware F34 installs with kernel >= 5.12.17 are booting fine. AND, for _this_ J1900, all kernels <= 5.12.15 boot OK. if there's specific, additional logging that'd be informative, I can attach.
