Bug 2115927

Summary: Kernel 5.18.15-200 fails to boot Fedora Workstation
Product: [Fedora] Fedora Reporter: Andrew J. Caines <A.J.Caines+RedHat>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 36CC: acaringi, adscvr, agurenko, airlied, alciregi, bskeggs, hdegoede, hpa, jarodwilson, jglisse, jonathan, josef, kernel-maint, lgoncalv, linville, masami256, mchehab, ptalbert, steved
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2022-08-06 18:40:49 UTC Type: Bug
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journalctl -b -1 -k --no-hostname --no-pager none

Description Andrew J. Caines 2022-08-05 18:08:44 UTC 
Created attachment 1903991 [details]
journalctl -b -1 -k --no-hostname --no-pager

After updates today including kernel from 5.18.13-200 to 5.18.15-200, gnome-shell segfaults, sdb1 can't mount and the boot freezes after identifying several USB devices on the console: https://photos.app.goo.gl/VSaL8xt8mTJPSNah6

kernel-core-5.18.15-200.fc36.x86_64

Workstation booted and still boots previous kernel 5.18.13-200.

Behaviour is consistently reproducible when booting kernel 5.18.15-200 from the grub menu.

Not tested with the latest Rawhide kernel.

No modules that are not shipped with directly Fedora's kernel.

Kernel log for the previous boot attached. Updated packages listed at https://paste.centos.org/view/70339f2d
Comment 1 Andrew J. Caines 2022-08-05 19:00:45 UTC 
Appears to be an known issue with this kernel version and AMD CPU/APUs. Mine is a A8-5557M (Bolton M3). There appears to be a fix upstream.
https://www.reddit.com/r/Fedora/comments/wg5tc7/psa_anyone_with_an_amd_cpu_skip_the_51815_kernel/
https://bugs.archlinux.org/task/75478
https://lore.kernel.org/lkml/20220728122602.2500509-1-cascardo@canonical.com/T/
Comment 2 Andrew J. Caines 2022-08-06 18:28:01 UTC 
5.18.15-200 booted with all CPU vulnerability mitigation off, i.e.

$ uname -r ; cat /proc/cmdline
5.18.15-200.fc36.x86_64
BOOT_IMAGE=(hd1,gpt1)/vmlinuz-5.18.15-200.fc36.x86_64 root=/dev/mapper/vg0-root ro rd.luks.uuid=luks-1c9b4560-52d6-43a3-8042-e8a24b9e58b9 rd.lvm.lv=vg0/root rhgb quiet mitigations=off

I see kernel 5.18.16-200, which should contain the fix, has reached the repos.
Comment 3 Andrew J. Caines 2022-08-06 18:40:49 UTC 
Closed due to upstream fix.