Re: USB storage (pendrive) problems

From: Andrew Walrond
Date: Mon Dec 20 2004 - 18:37:03 EST

On Monday 20 December 2004 21:54, Attila BODY wrote:
> Hi,
> I have some weird problems with my pendrives recently. I just compile a
> 2.6.9 to check if the problem is still exists there.
> current kernel is 2.6.10-rc3 and the situation is the following:
> If I copy more than few megabytes to the drive, the activity LED keeps
> flashing forever. sync, umount keeps runing forever, normal reboot is
> inpossible (alt+sysreq+b seems to work)
> Tested with usb 1.1 and 2.0 pendrives, behaviour is the same.

I'm doing exactly that with 2.6.10-rc3. umount does take a very long time (but
I had just written 600Mb+ over usb 1.1)

Are you sure it doesn't come back if you leave it long enough?

Do the throughput sums; you'll be suprised how long it takes to send more than
a few Mb over usb 1.1 (1.5Mb/s). Eg 600Mb = 7minutes

Usb 2 should be much faster; Do you have EHCI loaded?

Andrew Walrond
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