On Fri, 31 Oct 2008, Andrew Morton wrote: > (cc linux-usb) > > On Thu, 30 Oct 2008 06:22:49 +0100 Kasper Sandberg <lkml@xxxxxxxxxxx> wrote: > > > Hello.. > > > > I had to write an image to some usb flash drives, more specifically, 4GB > > kingston datatraveler sticks, and i figured, instead of doing just 1 at > > a time, i may aswell do 4, so i plugged in 4, and started 4 dd's of the > > images, to sdc, sdd, sde, sdf. However, i got usb disconnects and IO > > error messages from the kernel, these are at end of message. I had > > previously done ~5 writes of images to 5 other flash disks with no > > problem, but when i tried the next batch, those 4, it gave these errors. > > I killed the dd's, pulled them all out, and put in 1 at a time, and it > > worked perfectly. Your message turned up as I was going through some old email. A patch was recently accepted for 2.6.30 which _might_ solve this problem. If you want to try it, the patch is at: http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-04-usb/usb-ehci-add-software-retry-for-transaction-errors.patch Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
