Alright, so I noticed that 4.9-rc1 is still good, so I did a reverse
commit bisect between 4.8 and r.9-rc1. Here was the final result:
2a5708409e4e05446eb1a89ecb48641d6fd5d5a9 is the first bad commit
commit 2a5708409e4e05446eb1a89ecb48641d6fd5d5a9
Author: Lv Zheng <lv.zh...@intel.com>
Date: Wed Sep 7 16:50:21 2016 +0800
ACPI / EC: Fix a gap that ECDT EC cannot handle EC events
It is possible to register _Qxx from namespace and use the ECDT EC to
perform event handling. The reported bug reveals that Windows is using ECDT
in this way in case the namespace EC is not present. This patch facilitates
Linux to support ECDT in this way.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=115021
Reported-and-tested-by: Luya Tshimbalanga <l...@fedoraproject.org>
Tested-by: Jonh Henderson <jw.he...@gmail.com>
Reviewed-by: Peter Wu <pe...@lekensteyn.nl>
Signed-off-by: Lv Zheng <lv.zh...@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
The parent of that commit (which I am assuming is the "good commit") is:
commit 46922d2a3aff5122253d97e64500801c08f4f2c0
Author: Lv Zheng <lv.zh...@intel.com>
Date: Wed Sep 7 16:50:14 2016 +0800
ACPI / EC: Fix a memory leakage issue in acpi_ec_add()
When the handler installation failed, there was no code to free the
allocated EC device. This patch fixes this memory leakage issue.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=115021
Reported-and-tested-by: Luya Tshimbalanga <l...@fedoraproject.org>
Tested-by: Jonh Henderson <jw.he...@gmail.com>
Signed-off-by: Lv Zheng <lv.zh...@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Let me know if you need anything else.
** Bug watch added: Linux Kernel Bug Tracker #115021
http://bugzilla.kernel.org/show_bug.cgi?id=115021
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1653327
Title:
100% cpu usage with 4.8 kernel after upgrade to 16.10
Status in linux package in Ubuntu:
Confirmed
Bug description:
After upgrading my Sony Vaio Pro 13 to Lubuntu 16.10 and logging in
for the first time, I noticed the fans were spinning crazy fast. Since
nothing was open and I hadn't done anything since the upgrade yet, I
looked at top. There it showed systemd-journal and rsyslog using 100%
CPU.
I looked at /var/log/syslog and there was a flood of messaging
continually being appended of the form:
ACPI Error: no handler or method for gpe ... disabling event ...
The system was still somewhat usable, so I tried checking for updates,
but there wasn't anything to update. Since I never encountered this
error before, I tried installing a mainline kernel (4.9) from the
Ubuntu mainline kernel PPA. I booted into the new, mainline kernel and
no more 100% CPU usage. The only problem with using this kernel is
that I can't use VirtualBox anymore because dkms has a compilation
issue when building against the 4.9 kernel.
Before upgrading to 16.10, I was using Lubuntu 16.04 with whatever the
latest 4.4 kernel was at the time that 16.10 was released, which also
worked just fine.
The current (as of this writing) 4.8 kernel that is still causing problems is
4.8.0-32.
---
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mscdex 1812 F.... pulseaudio
/dev/snd/controlC1: mscdex 1812 F.... pulseaudio
CurrentDesktop: LXDE
DistroRelease: Ubuntu 16.10
InstallationDate: Installed on 2013-12-07 (1119 days ago)
InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
MachineType: Sony Corporation SVP13213CXB
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-32-generic
root=UUID=97c33b42-d845-488d-9a1f-d62e03702b16 ro quiet splash
libata.force=noncq acpi_backlight=vendor vt.handoff=7
ProcVersionSignature: Ubuntu 4.8.0-32.34-generic 4.8.11
RelatedPackageVersions:
linux-restricted-modules-4.8.0-32-generic N/A
linux-backports-modules-4.8.0-32-generic N/A
linux-firmware 1.161.1
Tags: yakkety
Uname: Linux 4.8.0-32-generic x86_64
UpgradeStatus: Upgraded to yakkety on 2016-12-17 (14 days ago)
UserGroups: adm audio cdrom dip lpadmin netdev plugdev sambashare sudo
vboxusers wireshark
_MarkForUpload: True
dmi.bios.date: 11/05/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R1041V7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrR1041V7:bd11/05/2013:svnSonyCorporation:pnSVP13213CXB:pvrC60C2CVE:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVP13213CXB
dmi.product.version: C60C2CVE
dmi.sys.vendor: Sony Corporation
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