[1] Summary
[HP Compaq 6715s] Updating kernel renders system unbootable
[2] Description
On 4.4.0-040400rc7:
- Message about loading image.
- Screen goes black.
- Fan goes to full speed.
- HD light lit for about 15 seconds or so, then goes dark.
Disect:
between 3.19.0-25.26 and 3.19.0-26.27 in the Ubuntu kernel tree:
commit 19114b5458510b757cd2801e64094e4062e4067f
Author: Lv Zheng <lv.zheng@xxxxxxxxx>
Date: Wed Jul 1 14:43:34 2015 +0800
ACPICA: Tables: Enable default 64-bit FADT addresses favor
BugLink: http://bugs.launchpad.net/bugs/1479048
commit 0ea61381788a37d864f9841b0fe97d40f7058f3b upstream.
ACPICA commit 4da56eeae0749dfe8491285c1e1fad48f6efafd8
The following commit temporarily disables correct 64-bit FADT addresses
favor during the period the root cause of the bug is not fixed:
Commit: 85dbd5801f62b66e2aa7826aaefcaebead44c8a6
ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses.
With enough protections, this patch re-enables 64-bit FADT addresses by
default. If regressions are reported against such change, this patch should
be bisected and reverted.
Note that 64-bit FACS favor and 64-bit firmware waking vector favor are
excluded by this commit in order not to break OSPMs. Lv Zheng.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/4da56eea
Reported-and-tested-by: Oswald Buddenhagen <ossi@xxxxxxx>
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
:040000 040000 0b002dc7d6e5abe0ded978926361d88efd5a0f88
27c36ea102b1622ded7beecbca477f62fa33922a M include
[7] Environment
Description: Ubuntu 14.04.3 LTS
Release: 14.04
[X] Notes
Please forgive any oversights in my report, it is my first in this
format. I left out many sections/numbers since I could not boot with
the latest mainline kernel. Also, I had to send the report again since
Google apparently hid some HTML in my mail.
Original report: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529381
Thanks,
Carl
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