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. James -- 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
