11.1-BETA3 uhub probes on warm boot triggers endless reboot cycle

[Glen Barber]

On Fri, Jun 30, 2017 at 10:23:26AM +1200, Jonathan Chen wrote:
> Hi,
> 
> I've got a dual boot system at home, booting into Windows 10 for
> games. I've noticed that since I updated to 11.1-BETA3, a reboot from
> Windows into FreeBSD results in a endless reboot cycle. In order to
> reboot FreeBSD, I have to cold-boot. The endless reboot cycle appears
> to be triggered when the kernel attempts to talk to "uhub", at which
> point it reboots, and the cycle repeats. No kernel panics, no crash
> cores.
> 
> The issue is not a biggie, other than the time it takes for me to
> power down completely, wait for capacitors to discharge completely,
> and then cold boot the machine. However, I thought I'd bring it to the
> notice of list.
> 

Thank you for the report.  Could you please open a PR about this?

Glen

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