On Sat, Dec 07, 2019 at 01:16:13AM +0100, Hans Petter Selasky wrote:
> 
> There is an option you can compile into the kernel which will allow the 
> keyboard to enter the debugger.
> 
> options       ALT_BREAK_TO_DEBUGGER
> 
> Sounds to me like either a leaked refcount or that one thread is 
> spinning blocking execution of other threads.
> 

I tried setting the sysctls

hw.usb.umass.debug: 1
hw.usb.xhci.debug: 1
hw.usb.uhci.debug: 1
hw.usb.ohci.debug: 1
hw.usb.ehci.debug: 1

but when I rebooted I forgot to request a verbose boot.
There was no apparent debugging output to the console.
I try again on Monday to get additional information.

-- 
Steve
_______________________________________________
freebsd-current@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"

Reply via email to