On Wed, Apr 25, 2012 at 10:32 AM, Axis Mann wrote:
> I hope the USB traces and other information I supplied helped to resolve
Of course, without the traces and other information you provided, we
can't figure out the solution. Thanks.
> this problem. Thank you for your attention on this matter.
In fact, the patch was in -stable tree for long time, but missed in
lucid kernel.
The patch is to address usb 'disconnect/reset' issue as the blow[1], but it
still may fix Axis's performance issue because the patch removes coarse
SOF timestamp and avoid io timeout.
So suggest to always release th
Axis,
On Sun, Mar 18, 2012 at 4:35 PM, Axis Mann wrote:
> The packages located at link
>
> http://kernel.ubuntu.com/~ming/bugs/624510/lucid-40.87-release/
>
> were tested and failed to correct the original Slow USB Read. The read spead
> reverted
> to 5 MB/s after those changes were installed a
On Sun, Mar 18, 2012 at 12:43 AM, Axis Mann wrote:
> I don't understand what you are asking. It sounds like you are asking
> in #51 for me to install the changes you first mentioned in #43 and told
> me how to install in #45 with the commands
>
> sudo dpkg -i linux-headers-2.6.32-40_2.6.32-40.87_
Hi Axis,
On Sat, Mar 17, 2012 at 1:11 PM, Axis Mann wrote:
> Hi, I went ahead and applied your kernel changes to my primary lucid
> installation which uses the Intel G41M4-F motherboard that I originally
> had the problem on. This is the same hardware I first tested your
> changes on except that
On Fri, Mar 16, 2012 at 7:47 PM, Axis Mann wrote:
> During installation of the kernel image, I got some messages about a
> memory leak. Is that ok?
Looks you can ignore the memory leak message now, so could you make sure
if your usb mass storage performance can be improved after installing the
k
On Sat, Mar 17, 2012 at 8:32 AM, Ming Lei wrote:
> On Fri, Mar 16, 2012 at 7:47 PM, Axis Mann wrote:
>> During installation of the kernel image, I got some messages about a
>> memory leak. Is that ok?
>
> Looks you can ignore the memory leak message now, so could you make sure
> if your usb mass
On Fri, Mar 16, 2012 at 4:02 AM, Axis Mann wrote:
> I'm not sure I know how to do that. Do I have to learn how to create
> and use a PPA to do that? How come there is more than one header file?
It is easy, just follow the steps below:
- install
sudo dpkg -i linux-headers-2.6.32-40_2.6.32-40.87
Axis, could you try to install the kernel images in the link[1] to see if
it can fix your usb mass storage performance bug?
[1], http://kernel.ubuntu.com/~ming/bugs/624510/
Thanks,
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Ming Lei
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On Wed, Mar 14, 2012 at 2:10 PM, Axis Mann wrote:
> An additional thought/question. Shouldn't you want to look at the
> dmesg, lsusb, and lspci output from Lucid rather than Oneiric since the
> problem I am experiencing is on Lucid?
Also could you post the output of 'lspci -vv -nn' so that I can
On Wed, Mar 14, 2012 at 2:10 PM, Axis Mann wrote:
> An additional thought/question. Shouldn't you want to look at the
> dmesg, lsusb, and lspci output from Lucid rather than Oneiric since the
> problem I am experiencing is on Lucid?
Looks the problem is about ehci host controller driver, because
On Wed, Mar 14, 2012 at 8:11 AM, Axis Mann wrote:
> do you want me to run the dmesg, lsusb, and lspci commands as super
> user or just ordinary user without administrative priviledges?
I think just ordinary user is OK.
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Axis, could you post the output of 'dmesg', 'lsusb -vv' and 'lspci -vv' on
Oneiric?
Also could you please post the usbmon trace on Oneiric?
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https://bugs.launchpad.net/bugs/624510
Title:
Axis, looks your usb mass storage device has a bad read performance, and
looks nothing mistaken is observed in your trace.
See below traffic captured[1]:
It is a whole process to read 120K data from usb mass storage device, and
about 28ms is taken to get the 120K data from device, so the max read
On Fri, Mar 9, 2012 at 5:10 AM, Axis Mann wrote:
> This is trace I got when I plugged in the USB drive. You need more?
Yes, you need to trace the traffic during the performance test on your
usb mass storage.
thanks,
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Hi Igor Zubarev,
On Sun, Oct 2, 2011 at 2:59 AM, Igor Zubarev wrote:
> 3 Gb copy 1 hour.
It is very difficult to troubleshoot this problem without usb mon
trace, so could
you provide the trace result according to guide in Documentation/usb/usbmon.txt
or the link[1]?
[1], http://www.mjmwired.net
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