Date: Sun, 16 Nov 2014 11:21:10 -0700 From: Ian Lepore <ian@FreeBSD.org> 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>, Steve Kargl <sgk@troutmask.apl.washington.edu> Subject: Re: USB locks up system -- WAS Re: shutdown or acpi problem Message-ID: <1416162070.4781.186.camel@revolution.hippie.lan> In-Reply-To: <D5925789-834A-42C8-9854-2E055592DA46@FreeBSD.org> References: <20141112224212.GA14013@troutmask.apl.washington.edu> <20141113172533.GA18690@troutmask.apl.washington.edu> <20141113180332.GA18990@troutmask.apl.washington.edu> <20141113181515.GA19117@troutmask.apl.washington.edu> <546515BF.6030508@selasky.org> <20141113212206.GA20802@troutmask.apl.washington.edu> <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>
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On Sun, 2014-11-16 at 18:17 +0000, Mark R V Murray wrote: > > On 16 Nov 2014, at 17:51, Steve Kargl <sgk@troutmask.apl.washington.edu> wrote: > > > > Is there a 'random: device_detach():' missing between the 'umass0' > > and 'da0' messages in the last 4 lines. > > No. At attach time, the RNG grabs some probe entropy. At detach time it does nothing. > > M And yet... Steve has gathered evidence that the system bricks when a device is detached with the new entropy-gathering code and doesn't do so prior to that code. What else is the new code doing around detach time? -- Ian
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