Hi Bill --
--- In Bill Gatliff <> wrote:
>
> Guys:
>
>
> Over the last few weeks I've gone from a perfectly-functional ts-7260
> board with Crapet's 2.6.27 kernel to one that more often than not stops
> here:
>
> ...
> INIT: version 2.86 booting
> usb 1-1: reset full speed USB device using ep93xx-ohci and address 2
> usb 1-1: reset full speed USB device using ep93xx-ohci and address 2
> usb 1-1: device descriptor read/64, error -110
> usb 1-1: device descriptor read/64, error -110
> usb 1-1: reset full speed USB device using ep93xx-ohci and address 2
> usb 1-1: device descriptor read/64, error -110
> usb 1-1: device descriptor read/64, error -110
> usb 1-1: reset full speed USB device using ep93xx-ohci and address 2
> usb 1-1: device not accepting address 2, error -110
> usb 1-1: reset full speed USB device using ep93xx-ohci and address
> 2
> ...
So if there is a problem, it stops during boot, and these messages loop
forever? Any errors thrown in normal use, if it does boot normally?
>
> The problem is intermittent, but growing more frequent to the point that
> it's almost 100% repeatable now. The root filesystem is coming from a
> micro-SD card plugged into a USB adapter, and that's the only device on
> the USB bus--- so the above error messages are related to that device.
> If I plug the same USB adapter and card into my Linux PC, it works fine
> and no errors are reported.
>
> I've tried other cards and USB adapters, including ordinary USB flash
> drives that are known to work on my Linux workstation. I've tried
> different power supplies, ranging from 12V down to 5V with no success.
> I've tried powered USB hubs that are known to work with Linux (I've
> tested them on other platforms, including ARM machines). NOTHING in
> this system has changed recently, either hardware-wise or
> software-wise. It's just been doing the occasional reboots as I test
> out user application code. I'm stumped, especially with the fact that
> it's been a progressive decline.
Can you build & test a kernel with CONFIG_USB_DEBUG and/or
CONFIG_USB_STORAGE_DEBUG defined?
> For what it's worth, error -110 is ETIMEDOUT according to errno.h.
>
> Anyone have any ideas what might be going on? Is anyone else seeing a
> similar problem? I'm aware of at least one other board in addition to
> my own that's beginning to show the same symptoms.
Hardware-wise, there's not much that can be deteriorating. There's a USBDF01W5
EMI filter / terminator, I have no idea if they can age. If so, you might try
the other port, since there is one filter for each port. But I guess that
would affect everything on the USB bus, not just at boot time.
regards, ........... Charlie
>
>
> Kindest regards,
>
>
> b.g.
>
> --
> Bill Gatliff
>
>
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