I assume there is a little confusion in
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2511
-> the MR refers to the BZ#2212012-related ask.Fedora thread (f38, which
can be mitigated by `|module_blacklist=ucsi_acpi|`) but it refers to the
BZ#2213179 bug report (f37, which can be mitigated by removing the KVM
switch but not by the blacklisting).
I assume I triggered the confusion because I mentioned both BZ# with
their respective ask.Fedora threads in my original mail, but the
BZ#2213179-KVM-issue only because of the two correlations (6.2.15 works,
all later not; issues could both be explained by an acpi-related bug).
I already asked Justin to change the BZ# in Bodhi.
On 6/14/23 10:43, Hans de Goede wrote:
Hi Christopher,
On 6/13/23 23:26, Christopher Klooz via devel wrote:
In case you are already aware of the issue, feel free to ignore this mail. I
just want to make aware that there could be multiple interrelated (bug) reports
that might be considered in conjunction and not on their own, given that the
amount of affected users is above average (I could imagine this is not limited
to ask.Fedora).
As far as it concerns ask.Fedora: since 6.3 was introduced, we have many users
in ask.Fedora with issues that seem to be ACPI related (more precisely,
`ucsi_acpi`, but maybe not just this) and that makes it impossible to use
kernels after 6.2.15 except with `module_blacklist=ucsi_acpi`.
I already asked the users to provide a bug report (this is how I became aware
that the report template was broken ;), but I am not sure if the report(s)
illustrate the number of users that have come up with the same issue. Since not
all users with issues end up on ask.Fedora, we don't know the actual number of
affected systems, but so many users with the same kernel issue is a seldom
phenomenon.
So far, most users with 6.3.X ACPI-related issues are found in this topics:
https://discussion.fedoraproject.org/t/fedora-hangs-on-boot-after-upgrading-to-kernel-6-3-4/83605/
-> black screen after grub menu with stable kernels after 6.2.15
-> everything fine with 6.2.15
-> mitigation: module_blacklist=ucsi_acpi (several users confirmed this to
mitigate the issue)
Links to the related bug reports are contained.
Thank you for reporting this and for the well written summary of the issue.
I believe that this is an issue which was already fixed recently and for which
a patch is currently pending upstream:
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?h=usb-linus&id=c4a8bfabefed706bb9150867db528ceefd5cb5fe
I have submitted a merge-request to get this fix added to the Fedora kernels as
a downstream patch for now:
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2511
So that we can hopefully get this resolved for Fedora users ASAP.
Regards,
Hans
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