Red Hat Bugzilla – Bug 1030633
Fedora 20 beta (and updates) unable to boot Intel Atom N2600 without 'acpi=off'
Last modified: 2013-12-04 09:07:33 EST
Description of problem:
Greetings. Any Fedora 20 incarnation fails to boot (including the beta) on my Intel Atom N2600-based machine unless I add 'acpi=off' to the kernel command line. This includes kernels up to and including 3.11.7-300.fc20.x86_64
Version-Release number of selected component (if applicable):
3.11.7-300.fc20.x86_64 / Fedora 20 Beta and subsequent updates
Attempt to boot into Live installer, normal installer media, or normal boot
The normal Fedora installation media will simply hang. If I add "plymouth.enable=0" and remove "quiet", the last message is "Switched to clocksource tsc".
With 'acpi=off' I can complete the installation. However even after updates the machine will not boot unless 'acpi=off' is added to the grub menu.
Booting/installing without the added 'acpi=off' option.
Researching the bug, I found references to ACPI: http://www.spinics.net/lists/linux-acpi/msg42849.html
Happy to provide more information and be a guinea pig to test fixes.
Created attachment 825225 [details]
journalctl output of boot with 'acpi=off'
Followed some advice here: http://fedoraproject.org/wiki/Common_kernel_problems
Couple of quick updates. Booting with pci=noacpi hangs at the same place (Switched to clocksource tsc), and applying different 'clocksource' parameters (hpet, jiffies, etc) also yields no love.
Booting with 'noapictimer' gives a different error, a couple of lines of "Could not switch to high resolution mode on CPU 3", etc per CPU, and " lapic is not functional." Net result is still a hang.
Per the above web page, the only way to boot that I know of is 'acpi=off'.
Exactly same issue here, also on Intel Atom N2600. If I could help anyhow with e.g. testing, please let me know.
As a positive update, kernel-3.11.9-300.fc20.x86_64 appears to fix the issue. I am able to boot this kernel leaving ACPI enabled.
Odd, don't see any changes between 3.11.7 and 3.11.9 that could be relevant.
Johan, is it fixed for you as well if you use 3.11.9-300.fc20 like Dave?
Confirmed that: my kernel version is 3.11.10 now, it boots successfully without the acpi=off parameter.