System becomes slow while copying files to disk using 2.6.31-14.48 kernel and amd64

[YAFU]

The problem is that when I copy files to the disk (above to ~50MB and tested from konsole or dolphin), the system becomes slow and unusable until the task is complete. Also, copying the file takes a long time to complete. Once the copy is finished, everything is normal again.
I have also noticed that with other tasks that require the use of the disk you get a bad system performance, for example when installing programs.
I installed an earlier version of Karmic kernel (2.6.31-11.36) and these problems do not happen, everything works fine with it.

I have installed Kubuntu 9.10 Karmic Koala 64 bits (upgraded from 9.04 Jaunty), ext3 filesystem.

$ uname -a
Linux nullpc-desktop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux

$ cat /proc/version_signature
Ubuntu 2.6.31-14.48-generic

[ivan (ivan.tg)]

Hi everyone

I did a clean install of Kubuntu 9.10 Karmic Koala 32bit. And i got exactly the same problem.
In my case copying folder with approx. size of 3.6 GB brought the system to a crawl. Even moving the mouse, switching between windows was a impossible.
Then i tried to copy using the command line (cp) but same thing happened.
Adding the folder to a .tar archive had the same effect on the system.

Kernel 2.6.31-14.48 as in the install CD image

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA Model: TOSHIBA MK4032GS Rev: AS21
  Type: Direct-Access ANSI SCSI revision: 05

Using Kubuntu version 8.04, kernel 2.6.24-25-generic, i have no such problem.

[YAFU (yafu)]

I still have the same problem with the latest upgrade to 2.6.31-15.50 version
I have to still use the 2.6.31-11.36 version with which I have no problems.
Bye.

[gfx (gfx)]

While copying some larger videos from a ntfs disk to the harddisk ubuntu resides on I get copying speeds of 50MB/s but it takes 20 seconds to launch the calculator.

[Jeremy Foshee (jeremyfoshee)]

Hi YAFU,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 478557

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[YAFU (yafu)]

Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: rafael 2437 F.... plasma-desktop
                      rafael 2562 F.... knotify4
                      rafael 2567 F.... kmix
 /dev/snd/controlC1: rafael 2567 F.... kmix
CRDA:
 country 98:
  (2402 - 2482 @ 40), (N/A, 20)
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfe020000 irq 16'
   Mixer name : 'Realtek ALC883'
   Components : 'HDA:10ec0883,10438232,00100002'
   Controls : 39
   Simple ctrls : 22
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfdcfc000 irq 27'
   Mixer name : 'ATI RS690/780 HDMI'
   Components : 'HDA:1002791a,00791a00,00100000'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined
   Playback channels: Mono
   Mono: Playback [off]
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=75a2add0-080d-42a1-a8e5-a117dee2cd67
MachineType: System manufacturer System Product Name
Package: linux (not installed)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.34-020634rc2-generic root=UUID=40940259-0a59-4fe8-8b89-dffd72d0b99e ro vga=789 quiet splash
ProcEnviron:
 SHELL=/bin/bash
 LANG=es_AR.UTF-8
 LANGUAGE=es_AR:es
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Uname: Linux 2.6.34-020634rc2-generic x86_64
UserGroups: adm admin cdrom dialout lp lpadmin netdev plugdev sambashare vboxusers
WpaSupplicantLog:

XsessionErrors:
 (polkit-gnome-authentication-agent-1:2519): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (firefox:2896): GLib-WARNING **: g_set_prgname() called multiple times
dmi.bios.date: 08/27/2008
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: ASUS M2A-VM HDMI ACPI BIOS Revision 2101
dmi.board.name: M2A-VM HDMI
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.XX
dmi.chassis.asset.tag: 123456789000
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSM2A-VMHDMIACPIBIOSRevision2101:bd08/27/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2A-VMHDMI:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[YAFU (yafu)]

Hello.
I've tried with the latest kernel for karmic (2.6.34-020634rc2) and the problem still happening.
But it only happens on my Kubuntu 9.10 upgraded from 9.04, as I had mentioned in the report. The problem does not happen with a clean installation of Kubuntu 9.10 or 10.04 in the same machine and hardware.
I do not know if you want me to do other tests, because in the coming days I will eliminate this system to install the new Kubuntu 10.04.
Thank you.

[Alecz20 (alexguzu)]

I am using Ubuntu 9.10 with the latest stable kernel available for it (don't know the exact number).

Also, I have installed the ATI driver, and VirtualBox.

I have the same problem, while copying is fast (60 MB/second), the system becomes very sluggish.

I have an Intel i5 with four cores, and none of them are being used: 1.2 GHz, of 2.66 GHz.

Is there any info I can provide to help with the issue?

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.