On Fri, Aug 2, 2013 at 8:02 PM, James Stone <jamesmstone@xxxxxxxxx> wrote: > On Fri, Aug 2, 2013 at 8:49 AM, James Stone <jamesmstone@xxxxxxxxx> wrote: >> On Thu, Aug 1, 2013 at 5:43 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: >>> On Thu, 1 Aug 2013, James Stone wrote: >>> >>>> > SMIs are controlled by the BIOS, not by the kernel. I don't think >>>> > changing the kernel would affect their timings. >>>> > >>>> >>>> Hmm.. ok. So do I need to see if there is a bios update/report this to >>>> motherboard manufacturer? >>> >>> If there's an update available, you ought to apply it. >>> >>> I don't know if talking to the motherboard manufacturer will accomplish >>> anything. They're not likely to listen to you, and in any case, they >>> probably didn't write their own BIOS. >>> >>>> > Okay, so the USB controllers do share IRQ lines. Were you using the >>>> > other USB buses when the errors occurred? >>>> >>>> Webcam microphone might have been on. >>> >>> You should try testing with no other USB activity going on. Just in >>> case. >>> >> >> Not yet tried this, but I have tested the latest bios, and still get >> the same lockup. Full function-trace attached. > > OK . I have now tested with the webcam disconnected, and I don't seem > to be able to get this bug to occur. > Ah - and on plugging the webcam in, it happened immediately. -- 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
