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.
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