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Message #32573
[Bug 1107150] Re: B75 Chipset I/O Problems
just tested. The x86 kernel still has the bug.
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https://bugs.launchpad.net/bugs/1107150
Title:
B75 Chipset I/O Problems
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
I built a new system and installed Ubuntu 12.10. The system has the
following specifications:
Samsung 840 Pro 128 GB
Gigabyte P75-D3
Intel i7 3770
32 GB Ram
Western Digital 1 TB Black (mounted as /home)
Western Digital 3 TB Green (mounted as /media/data_drive)
The initial Ubuntu 12.10 install took almost 6 hours as transfer rates
were very slow. After reboot everything appeared very fast. However
when I did an "apt-get update" the download took 20 seconds and the
processing of lists took 19 minutes.
I had 12.10 installed on another computer which was working great
(older Althon system) so I installed the drive and tested the new
machine. It suffered the same performance problems.
I installed Windows 7 and performed speeds tests, it reported great
results.
I installed 12.04 onto the 1 TB drive and it did not suffer the same
performance problems. Everything ran great.
I then upgraded 12.10 to 13.04 (January 27, 2013) and it too suffered
from the performance issue.
It appears that a change between 12.04 to 12.10 impacts AHCI based
systems specifically running the Intel B75 chipset. I am not certain
but I think that either the motherboard is misrepresenting something
(that 12.04 ignores but it impacts 12.10) or the kernel is not
detecting the system correctly.
I created a couple of pastebins with data collected:
12.10 Install: http://pastebin.ubuntu.com/1561660/
12.04 Live Disk (was checked against installed version and data is mostly the same): http://paste.ubuntu.com/1565140/
I have a thread on the ubuntu forums that may provide additional
details: http://ubuntuforums.org/showthread.php?t=2104709
I also started an e-mail thread to the ubuntu-users mailing list:
http://ubuntu.5.n6.nabble.com/Seeking-Help-td5010422.html
I have done a lot of troubleshooting and I feel that the problem must
either be the kernel or the bios misrepresenting information. In
either case I am stuck without any idea of where to go next with the
debuging and diagnoses path.
If any additional information needs to be collected, please let me know and I will work to assist.
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AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: bakers 1729 F.... pulseaudio
/dev/snd/controlC0: bakers 1729 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7110000 irq 45'
Mixer name : 'Realtek ALC887-VD'
Components : 'HDA:10ec0887,1458a002,00100302'
Controls : 39
Simple ctrls : 20
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xf7080000 irq 17'
Mixer name : 'Nvidia GPU 42 HDMI/DP'
Components : 'HDA:10de0042,14583553,00100100'
Controls : 18
Simple ctrls : 3
DistroRelease: Ubuntu 12.04
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-36-generic-pae root=UUID=4f30252c-fa56-4d53-be78-117cddab55f4 ro quiet splash
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic-pae 3.2.35
RelatedPackageVersions:
linux-restricted-modules-3.2.0-36-generic-pae N/A
linux-backports-modules-3.2.0-36-generic-pae N/A
linux-firmware 1.79.1
RfKill:
StagingDrivers: mei
Tags: precise running-unity staging
Uname: Linux 3.2.0-36-generic-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 08/21/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F9
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P75-D3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF9:bd08/21/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnP75-D3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
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