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SubjectRe: Regression causes a hang on boot with a Comtrol PCI card
On Tue, 23 Apr 2019, Jesse Hathaway wrote:

> On Tue, Apr 16, 2019 at 10:00 AM Alan Stern <stern@rowland.harvard.edu> wrote:
> > Whatever the source of the problem, I don't think you're going to find
> > it by looking at the USB code. Perhaps the early initialization of the
> > functions that _are_ present on the Comtrol card somehow messes up
> > other parts of the system.
>
> Thanks for all you help Alan,
>
> I think at this point my Linux kernel debugging knowledge has run
> aground. I would
> love to crack this nut, but I doubt that will be possible with my
> current knowledge base.
> For now I am going to run the patched kernel even if I don't
> understand precisely why
> they prevent the box from hanging on boot when the Comtrol card is present.

Okay, that's understandable. Sorry I couldn't do more to help.

Alan Stern

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