Date: Wed, 29 Feb 2012 17:34:55 -0800 From: Devin Teske <devin.teske@fisglobal.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org, Devin Teske <dteske@vicor.com>, Gapon <avg@freebsd.org>, Andriy Subject: Re: revisiting tunables under Safe Mode menu option Message-ID: <A8C72CB9-4C77-4697-8C28-63A2E10C557D@fisglobal.com> In-Reply-To: <201202280846.08966.jhb@freebsd.org> References: <4F26CC5A.2070501@FreeBSD.org> <4F4C0600.2000903@FreeBSD.org> <3BA1B476-ED05-4E8E-8DFA-0B06EFB48867@samsco.org> <201202280846.08966.jhb@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Feb 28, 2012, at 5:46 AM, John Baldwin wrote: > On Tuesday, February 28, 2012 1:23:11 am Scott Long wrote: >> I still think that it's useful to be able to disable ACPI. Just because= =20 > ACPI works well on modern hardware doesn't mean that everything crummy fr= om=20 > 2000-2007 suddenly disappeared off the face of the earth. But I agree th= at=20 > turning it off on modern systems probably does more harm than good. Henc= e my=20 > suggestion for a finer control over this in the menu. Maybe Devin Teske = can=20 > lend some help with this task? .oO(uh oh, what'd I do now?) > For extra credit, it should be possible to=20 > write a simple static analysis tool that collects all of the tunables tha= t are=20 > compiled into the kernel and generates a data file that the boot menu can= =20 > process and turn into interactive knobs for the user. >=20 > Hmm, with the newer boot menu, can't one now toggle safe mode and ACPI=20 > independently? Semi-independently; ordered rather. Toggling Safe Mode On will toggle ACPI Off. This is the only real example o= f one menu item reaching into another menu item, and it only happens when t= oggling Safe Mode on (not off). Despite the above description, it is in-fact intuitive and the effects are = as-expected. Booting Safe Mode with ACPI enabled is no harder than toggling Safe Mode on= [first] before [then] re-enabling ACPI (followed by ENTER). > (Assuming we haven't removed the ability to disable ACPI from=20 > the menu, if we have we should perhaps put that back). Having them be=20 > orthogonal knobs would seem to the be the best approach. >=20 +1 on keeping the menu items loosely entwined (ACPI stands alone, but Safe = Mode knows about ACPI but only acts on it when being enabled). --=20 Devin _____________ The information contained in this message is proprietary and/or confidentia= l. If you are not the intended recipient, please: (i) delete the message an= d all copies; (ii) do not disclose, distribute or use the message in any ma= nner; and (iii) notify the sender immediately. In addition, please be aware= that any message addressed to our domain is subject to archiving and revie= w by persons other than the intended recipient. Thank you.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?A8C72CB9-4C77-4697-8C28-63A2E10C557D>