Markus Trippelsdorf wrote: > On 2011.11.02 at 12:41 +0100, Clemens Ladisch wrote: > > Markus Trippelsdorf wrote: > > > I'm seeing these messages for the first time running > > > 3.1.0-07810-g094803e: > > > > > > delay: estimated 222, actual 133 > > > delay: estimated 221, actual 132 44.1 * 3 = 132.3 44.1 * 5 = 220.5 44.1 * 6 = 264.6 44.1 * 7 = 308.7 > > How often do these occur? > > This just happend once yet (during "make check" of glibc). It appears that these checks manage to create latencies of several milliseconds in the USB driver. AFAIK the USB HC drivers handle URB completions in their interrupt handler. You don't happen to be using a closed-source graphics driver on irq 16 or 17? Regards, Clemens -- 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
