Bug 52611

Summary: CPU overheating with linux 3.8-rc3
Product: Platform Specific/Hardware Reporter: John Swing (funkadelic.drummer)
Component: x86-64Assignee: platform_x86_64 (platform_x86_64)
Status: CLOSED CODE_FIX    
Severity: normal CC: alan, joseph.salisbury
Priority: P1    
Hardware: x86-64   
OS: Linux   
Kernel Version: 3.8-rc3 Subsystem:
Regression: Yes Bisected commit-id:
Attachments: lspci -vvnn
dmesg.log

Description John Swing 2013-01-12 13:22:16 UTC
Created attachment 91061 [details]
lspci -vvnn

Hello,

Since updating to linux 3.8-rc3 my CPU is clearly overheating compared to linux 3.7.

kernel Idle Busy (VLC playing, Chromium open with several tabs)
3.7 46°C 51°C
3.8-rc3 54° 61°C
Diff +8°C +10°C

There is no problem with CPU load, in both case it stay around the same percentage.

John.

Details :

uname -a => Linux lucas-K55VD 3.8.0-0-generic #3-Ubuntu SMP Fri Jan 11 17:24:16 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

cat /proc/version_signature => Ubuntu 3.8.0-0.3-generic 3.8.0-rc3

lspci => 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1058 (rev a1)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5289 (rev 01)
04:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 0a)
Comment 1 John Swing 2013-01-12 13:22:52 UTC
Created attachment 91071 [details]
dmesg.log
Comment 2 Joseph Salisbury 2013-02-12 15:48:24 UTC
This bug is resolved in v3.8-rc6.