Ubuntu
linux-source-2.6.20 package

  1. Bug #88746 (ehci-hcd)
  2. Comment #576

Comment 576 for bug 88746

Revision history for this message
Lukáš Chmela (lukaschmela) wrote : Re: [Bug 88746] Re: ehci_hcd module causes I/O errors in USB 2.0 devices
  • lspci.txt Edit (13.0 KiB, text/plain; name="lspci.txt"; charset="UTF-8")
  • lsusb.txt Edit (454 bytes, text/plain; name="lsusb.txt"; charset="UTF-8")

Andy Rabagliati píše v So 23. 01. 2010 v 11:08 +0000:
> @Pi - without more information, we can only cluck sympathetically.
>
> Please attach the results of lspci -vvnn and lsusb - and tell us the
> result of trying the workarounds described above.
>
> Newer kernels have unmodularised ehci_hcd so it cannot be removed.
>
> You don't really want to remove it because USB transfers will slow to a
> crawl.
>

Hi,
I am still experiencing this very ugly bug, although it affects only
"selected" devices that I have.
I think, it is related only to USB mass storage devices, as my camera
connected through USB and communicating through gphoto2 protocol works
fine when transferring data.

I have problem only with my USB memory card reader and my mobile phone
(when connected through usb mass storage mode) - those are the only USB
mass storage devices that I have.
These devices keeps resetting immediately after a specific amount data
has been transferred. For instance, my USB card reader is always reset
after every ~5 photo previews loaded in Nautilus and my mobile phone is
even not able to connect. It keeps turning its display off and on and in
system protocol still roll the same messages "usb 1-6: reset high speed
USB device using ehci_hcd and address 5" consequently.

I attach output of lspci -vvnn and lsusb on your request.

--
Lukáš Chmela <email address hidden>
IRC: <email address hidden>, ICQ: 202077459
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