freeze during boot regression Re: [PATCH 6.12 000/265] 6.12.77-rc1 review

[Barry K. Nathan]

On 3/12/26 13:06, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.12.77 release.
> There are 265 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Fri, 13 Mar 2026 20:09:29 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.77-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Intermittently, but significantly greater than 50% of the time,
6.12.77-rc1 fails to boot on my Lenovo ThinkPad T14 Gen 1 running Debian
12 bookworm. When boot fails, the last couple lines of console output
(retyped from a photo) are:

Loading, please wait...
Starting systemd-udevd version 252.39-1~deb12u1

I will begin bisection shortly. I happen to have also previously
compiled 6.12.76 + stable-queue as of
commit 4b2b2b5cf3cd78f4de4646687a4efecbd21643af, and that shows the same
boot failures. That means the following patches are *not* to blame for
the problem:

net-sched-only-allow-act_ct-to-bind-to-clsact-ingress-qdiscs-and-shared-blocks.patch
apparmor-validate-dfa-start-states-are-in-bounds-in-unpack_pdb.patch
apparmor-fix-memory-leak-in-verify_header.patch
apparmor-replace-recursive-profile-removal-with-iterative-approach.patch
apparmor-fix-limit-the-number-of-levels-of-policy-namespaces.patch
apparmor-fix-side-effect-bug-in-match_char-macro-usage.patch
apparmor-fix-missing-bounds-check-on-default-table-in-verify_dfa.patch
apparmor-fix-double-free-of-ns_name-in-aa_replace_profiles.patch
apparmor-fix-unprivileged-local-user-can-do-privileged-policy-management.patch
apparmor-fix-differential-encoding-verification.patch
apparmor-fix-race-on-rawdata-dereference.patch
apparmor-fix-race-between-freeing-data-and-fs-accessing-it.patch
ext4-fix-potential-null-deref-in-ext4_mb_init.patch
ata-libata-core-fix-cancellation-of-a-port-deferred-qc-work.patch
ata-libata-eh-correctly-handle-deferred-qc-timeouts.patch
ata-libata-cancel-pending-work-after-clearing-deferred_qc.patch
ata-libata-eh-fix-detection-of-deferred-qc-timeouts.patch

--
-Barry K. Nathan  <barryn@xxxxxxxxx>