On Tue, 5 Jan 2010, Andrew Morton wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=14929 > > > > Summary: usb writing speed issue > > while writing on usb-stick via usb2.0 (tested writing about 1GB data on > > different usb-sticks) speed starts at about 14Mb/s and afterwards gets slower > > and slower (down to 700kb/s and less). Did also happen in kernel version 2.6.31 > > on another system running ubuntu with similar custom kernel, in kernel version > > 2.6.30.6 writing speed behaves normal, starts at 14Mb/s and gets just about > > 2Mb/s slower. Please collect a usbmon trace showing the problem, attach it to the bug report, and send an email reply when the trace is ready. Instructions for usbmon can be found in the kernel source file Documentation/usb/usbmon.txt. 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
