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Date:      Sun, 16 Nov 2014 11:03:44 -0800
From:      Steve Kargl <sgk@troutmask.apl.washington.edu>
To:        Mark R V Murray <markm@FreeBSD.org>
Cc:        Hans Petter Selasky <hps@selasky.org>, Adrian Chadd <adrian@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>, Dag-Erling Sm?rgrav <des@freebsd.org>, Ian Lepore <ian@FreeBSD.org>
Subject:   Re: USB locks up system -- WAS Re: shutdown or acpi problem
Message-ID:  <20141116190344.GC36021@troutmask.apl.washington.edu>
In-Reply-To: <4443FEFB-17F1-4516-959F-4C70AB2A4382@FreeBSD.org>
References:  <20141116054141.GA33186@troutmask.apl.washington.edu> <CAJ-Vmo=8oQdi_5um3ck%2BQwb=4KL2QfHE=ykQ2mNTJc5QerOEuw@mail.gmail.com> <20141116175102.GA35649@troutmask.apl.washington.edu> <D5925789-834A-42C8-9854-2E055592DA46@FreeBSD.org> <1416162070.4781.186.camel@revolution.hippie.lan> <F0B9570C-BADD-4843-AE91-66CAB0B5DE85@FreeBSD.org> <1416162718.4781.192.camel@revolution.hippie.lan> <4F3B4E02-0ADD-46EB-BB90-BF360E810585@FreeBSD.org> <20141116185141.GB36021@troutmask.apl.washington.edu> <4443FEFB-17F1-4516-959F-4C70AB2A4382@FreeBSD.org>

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On Sun, Nov 16, 2014 at 06:55:53PM +0000, Mark R V Murray wrote:
> 
> > On 16 Nov 2014, at 18:51, Steve Kargl <sgk@troutmask.apl.washington.edu> wrote:
> > 
> > If you have not read the entire thread, once the laptop keyboard and
> > video output lock up, I can ssh into the laptop.  If I run usbconfig,
> > it hangs, ^T tells me it is stuck in SX Lock, and the /dev/da0* devices
> > have not been destroyed.
> 
> Weirder and weirder :-(.
> 
> Something with SX locks? Hmm. I do use those for attach and detach for
> RNG sources. Could it be that that stick of yours is somehow getting
> involved in the RNG source locks?
> 

It's not limited to a single usb device.  Plugging in/Unplugging
a logitech mouse dongle, the memstick, a Western Digital MY Passport
external usb hard drive, all lead to the locked keyboard and video.

I tried adding both RANDOM_DEBUG and USBDEBUG to the kernel, but the
mount of output is mind numbing.

-- 
Steve



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