From owner-freebsd-questions@freebsd.org Wed Nov 30 01:44:10 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C991BC5C0F4; Wed, 30 Nov 2016 01:44:10 +0000 (UTC) (envelope-from xxjack12xx@gmail.com) Received: from mail-io0-x22e.google.com (mail-io0-x22e.google.com [IPv6:2607:f8b0:4001:c06::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 84D80142F; Wed, 30 Nov 2016 01:44:10 +0000 (UTC) (envelope-from xxjack12xx@gmail.com) Received: by mail-io0-x22e.google.com with SMTP id c21so305930613ioj.1; Tue, 29 Nov 2016 17:44:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=HRqhTTqQIUlcMMgIVkp7ccCcXYVsZ1ii+RbyxUqgOdI=; b=C6sNKsaBz9jW9IAvx0W9r6LQPgazd5ZbvO0SzvZ0fl3DtnHckgu3igmtYUJJmZusYH 3AwMZbT4Cao9da3JrAgbSe7/FwP1n8mPdTjJf+vuqb5EJEkblII+Z1KmgmXU9XiAfpqG VvrPl5gIfBDLf+cQGl/4XF+fJ7R4fFKMvoB5UBGy6EHa1m/8t7c0azxWx1ysGnuSZwjb HcQh7Zhk1wfXnXP9XElygJCDmnbaRwj6Q8h+8WOgvKCwL0nYWE647rcF2S+eWgccuSy+ 0ZkVEHB4yB7NOTQXoSKOrxHJG/Obi6XX28ZI+3UOAhlXl7rq7uVaIr0r2hn8g25UWfW8 aaFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=HRqhTTqQIUlcMMgIVkp7ccCcXYVsZ1ii+RbyxUqgOdI=; b=H91i4N5NWdAo+PLs2LvDC4g5ICdzWbPS6Cu2fIkBsgzS1rj8bnb2k3RtZMDp53wIw8 V+R6+YtYpyzo81/JfVw8Zr52RpxHe/Kci2X2Vqn7BYD6NFv/oT30R7tsfmZMi2cJxW0m XHOYIQyZPKaUBXr+7zt9+LyBca5LCwASyofeWEY/WBLdT4miUlKSACkdVAnHtsVBWMr8 Qe7pBC5XpFemk4CBPES02xgZvhrfWJgvVaZDTd+C8ArnllawklrDHSc5Jo1ZrHDpoTDT CzbgVlRFcZamcY25U4OU3Txj13uUfWCqLjKJSkwDcjKd2gXMCN3WnE31wHWIV7x+wfGu Rr6Q== X-Gm-Message-State: AKaTC00POgqZUdrZDPP3eVuPzJqmTiOhaSvyrdN7o0hl3HlWEB8dT4rbRDc0cYMytgAwb/sj5l11h18xOKSj0Q== X-Received: by 10.107.34.84 with SMTP id i81mr26748323ioi.180.1480470249653; Tue, 29 Nov 2016 17:44:09 -0800 (PST) MIME-Version: 1.0 Received: by 10.107.131.147 with HTTP; Tue, 29 Nov 2016 17:43:28 -0800 (PST) In-Reply-To: References: <20161109121030.2f678bea@gumby.homeunix.com> <20161126033259.GA57873@becker.bs.l> <20161126150144.GA65709@becker.bs.l> From: "Jack L." Date: Tue, 29 Nov 2016 17:43:28 -0800 Message-ID: Subject: Re: Old laptop not able to get enough entropy in FreeBSD 11 To: "freebsd-questions@freebsd.org" Cc: FreeBSD-STABLE Mailing List Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Nov 2016 01:44:10 -0000 Adding FreeBSD stable to see if they can provide some insight on this since it affects everything from 11 and beyond > > On Sat, Nov 26, 2016 at 7:01 AM, Bertram Scharpf > wrote: > >> On Friday, 25. Nov 2016, 20:06:55 -0800, Jack L. wrote: >> > On Fri, Nov 25, 2016 at 7:32 PM, Bertram Scharpf < >> lists@bertram-scharpf.de> >> > wrote: >> > >> > > On Friday, 25. Nov 2016, 18:31:24 -0800, Jack L. wrote: >> > > > >> > I have an old single core AMD Turion ML-37 laptop that has >> nothing >> > > > >> > installed. When I boot it up, the moment it displays login:, >> it hangs >> > > > >> > until i press some random keys. At shutdown, it will hang >> until I >> > > > >> > press keys and it will not move onto the next line of shutdown >> until >> > > > >> > I keep pressing keys. >> > > > >> > >> > > > >> > If I cat /dev/random > ./dev/null while using the laptop, it >> works >> > > > >> > fine but when nothing is happening, the laptop hangs. Any >> ideas? It's >> > > > >> > running 11.0-STABLE >> > > > > >> > > > > Any ideas on why the laptop would have that behavior in 11? It >> didn't hang >> > > > > at all in 10.3-STABLE >> > > > > >> > > > I just installed 12-CURRENT on the laptop and it also hangs even at >> > > > install/boot/shutdown until I hit keys, then it will move as long >> as I >> > > > continue to hit keys. I also found that if I ping the laptop, it >> will >> > > > respond but in between pings, it will hang. Using FreeBSD 10.3, it >> works >> > > > perfectly fine without any random keypresses. Any ideas? >> > > >> > > I'm convinced this behaviour it worth being analysed. >> > > >> > > Can you gain any knowlegde by calling cat through truss? >> > >> > How should I run that? >> >> Sorry, that was probably too fast. >> >> You could run one of those: >> >> # truss cat /dev/random >/dev/null >> # truss dd if=/dev/random of=/dev/null bs=512 count=3 >> >> But they will show just a series of read-write calls until a >> read will hang. The detain presumably occurs in the random >> device. That's kernel stuff. Does anybody have a hint how to >> debug that without influencing the behaviour in question? >> > > So truss cat /dev/random >/dev/null > will keep going and going and going and going > truss dd if=/dev/random of=/dev/null bs=512 count=3 > sits there and hangs with no activity until i hit a key, then the dd > happens. > > >> Bertram >> >> >> -- >> Bertram Scharpf >> Stuttgart, Deutschland/Germany >> http://www.bertram-scharpf.de >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to "freebsd-questions-unsubscribe >> @freebsd.org" >> > >