Re: USB storage (pendrive) problems

From: Randy.Dunlap
Date: Mon Dec 20 2004 - 18:58:41 EST

Andrew Walrond wrote:
On Monday 20 December 2004 21:54, Attila BODY wrote:


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?

and which usb driver are you using?
ub or usb-storage? (what's the /dev name that you mount?)

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