On Feb 27, 2012, at 2:45 AM, Andriy Gapon <avg_at_FreeBSD.org> wrote: > on 30/01/2012 18:59 Andriy Gapon said the following: >> >> First, I think that this proposal/discussion could have been more useful before >> the 9.0. Maybe the RE would be interested in adding another item to their >> pre-release checklist: ask developers about what could be dropped and what should >> be added to the Safe Mode settings in a new (.0) release. Probably the developers >> should keep the Safe Mode in mind too when adding new features or making other >> drastic changes, but the reminder should be welcome. > [snip] >> o Since we have a separate ACPI option and because ACPI now is almost a mandatory >> thing (and not a significant source of boot troubles), maybe we could remove the >> code that automatically disables ACPI in Safe Mode? >> >> o hint.apic.0.disabled - APIC code doesn't seem to be a significant source of boot >> troubles, like ACPI it has become almost a mandatory thing. So maybe we should >> remove this setting? > [dropped proposals snipped] >> o hw.eisa_slot - Looks like something from ancient times. Probably just >> irrelevant for most systems. >> >> o hint.kbdmux.0.disabled - I do not recall any recent problems with kbdmux. In >> fact disabling it may produce a surprising behavior for a user if there are >> multiple keyboards actually attached. >> >> Just so that the Safe Mode doesn't turn into a NOP I propose to add the following >> tunables: >> >> o kern.eventtimer.periodic=1 - Use periodic timer to drive clocks just in case a >> system has any problems with the default mode. Example: PR 164457. >> >> o kern.geom.part.check_integrity=0 - Let GPART code be more permissive, could be >> useful during upgrades from earlier versions of FreeBSD or when multi-booting with >> other OSes. >> >> o More? >> > > How does the following look? > diff --git a/sys/boot/forth/menu-commands.4th b/sys/boot/forth/menu-commands.4th > index 828a148..41ba317 100644 > --- a/sys/boot/forth/menu-commands.4th > +++ b/sys/boot/forth/menu-commands.4th > _at__at_ -62,30 +62,19 _at__at_ marker task-menu-commands.4th > -rot 2dup 12 + c! rot \ replace 'N' with ASCII numeral > > evaluate 0= if > - s" hint.apic.0.disabled" unsetenv > s" hw.ata.ata_dma" unsetenv > s" hw.ata.atapi_dma" unsetenv > s" hw.ata.wc" unsetenv > - s" hw.eisa_slots" unsetenv > - s" hint.kbdmux.0.disabled" unsetenv > + s" kern.eventtimer.periodic" unsetenv > + s" kern.geom.part.check_integrity" unsetenv > + s" debug.acpi.disabled" unsetenv > else > - \ > - \ Toggle ACPI elements if necessary > - \ > - acpipresent? if acpienabled? if > - menuacpi _at_ dup 0<> if > - toggle_menuitem ( N -- N ) > - then > - drop > - acpi_disable > - then then > - > - s" set hint.apic.0.disabled=1" evaluate > s" set hw.ata.ata_dma=0" evaluate > s" set hw.ata.atapi_dma=0" evaluate > s" set hw.ata.wc=0" evaluate > - s" set hw.eisa_slots=0" evaluate > - s" set hint.kbdmux.0.disabled=1" evaluate > + s" set kern.eventtimer.periodic=1" unsetenv > + s" set kern.geom.part.check_integrity=0" unsetenv > + s" set debug.acpi.disabled=hostres" unsetenv > then > > menu-redraw > > The reasoning is sound and diff looks good. +1 BUT... testing warranted and feedback from others should also be sought-after for consensus. Good work. -- Devin _____________ The information contained in this message is proprietary and/or confidential. If you are not the intended recipient, please: (i) delete the message and all copies; (ii) do not disclose, distribute or use the message in any manner; and (iii) notify the sender immediately. In addition, please be aware that any message addressed to our domain is subject to archiving and review by persons other than the intended recipient. Thank you.Received on Mon Feb 27 2012 - 15:01:19 UTC
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