https://bugzilla.kernel.org/show_bug.cgi?id=202475
Bug ID: 202475
Summary: Boot crash in acpi
Product: ACPI
Version: 2.5
Kernel Version: 4.20.5 (and 4.19 series)
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ACPICA-Core
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Most kernels in the 4.19 and 4.20 series crash during boot in the acpi
component on specific hardware (see below).
This is 100% reproducible.
By bisection, the culprit is commit 4abb951b73ff ("ACPICA: AML interpreter: add
region addresses in global list during initialization"), which was first
introduced in upstream v4.19.2 (commit 22083c028d0b), reverted in v4.19.3
(commit 8ef305fbc50d), and finally included again in v4.19.6 (commit
87403e35bc56).
Jeremy Cline sent an email in response to its inclusion in v4.19.6, but it must
have slipped through the cracks for the ACPI maintainers.
Original Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=1659225
Note that I tested both with vanilla and with Fedora kernels.
This is is an old HP/Compaq 6715b laptop. lscpu and lspci output is attached to
the Fedora bug, as well as kernel msgs with and without crash for several
kernel versions. Also, an atom user reported a similar problem that disappeared
with the same revert.
Please let me know if I should repost the attachments from the Fedora bz over
here.
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