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
@@ -62,30 +62,19 @@ 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 @ 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
--
Andriy Gapon
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