Created attachment 1839308 [details]
journalctl -b -1 --no-hostname -k
1. Please describe the problem:
I upgraded F34 to the latest kernel (5.14.14) and rebooted. When the computer reaches the login screen it completely freezes. Both the keyboard and mouse are unresponsive and I can't log in (or do anything else).
2. What is the Version-Release number of the kernel:
broken kernel: 5.14.14-200
3. Did it work previously in Fedora? If so, what kernel version did the issue
*first* appear? Old kernels are available for download at
Yes, keyboard and mouse used to work. They continue to work if I boot into 5.14.11-200.
4. Can you reproduce this issue? If so, please provide the steps to reproduce
the issue below:
Boot into the latest kernel and wait for the screen to freeze.
5. Does this problem occur with the latest Rawhide kernel? To install the
Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
``sudo dnf update --enablerepo=rawhide kernel``:
6. Are you running any modules that not shipped with directly Fedora's kernel?:
7. Please attach the kernel logs. You can get the complete kernel log
for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
issue occurred on a previous boot, use the journalctl ``-b`` flag.
I think I've attached the right file, dmesg.txt.
Hmm, ok, so this is a regression in 5.14.14 and newer which is most likely caused by:
I guess some XHCI controllers don't like 32 bit writes to that register?
Note the commit which I guessed was causing this was wrong, now we know which commits really are the culprit, see:
We know which patches in 5.14.14 are causing this and they will be reverted for the next 5.14.y release, for now please stay with a kernel < 5.14.14 to work around this.
*** This bug has been marked as a duplicate of bug 2019788 ***