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SubjectRe: [PATCH RESEND] Fix reboot regression on Acer Aspire One AOA110
2011/11/3 Peter Chubb <peter.chubb@nicta.com.au>:
>>>>>> "Vasily" == Vasily Khoruzhick <anarsoul@gmail.com> writes:
>
> Vasily> From: Uroš Vampl <mobile.leecher@gmail.com> Starting with
> Vasily> kernel 3.0, my Acer Aspire One AOA110 hangs on reboot. Doing
> Vasily> an internet search, I found that in git commit
> Vasily> b49c78d4827be8d7e67e5b94adac6b30a4a9ad14 the machine was made
> Vasily> to reboot with the bios method, but it does not work on most
> Vasily> (all?) AOA110s.
>
> That change was made in July to fix the broken ACPI reboot method.  It
> certainly works on my AOA110.  What BIOS do you have installed?
> (although looking at what's been published, I can't see any booting
> problems mentioned in the BIOS changelogs).
>
> Vasily> This patch introduces new quirks section for machines that
> Vasily> only reboot with the kbd method and put the Aspire One into
> Vasily> it.
>
> You don't need yet another table, just change the callback.
>
>
> Try this:

Any chance to get this patch merged? Would be nice to see it in stable aswell.

Regards
Vasily

> Index: linux-2.6/arch/x86/kernel/reboot.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/kernel/reboot.c     2011-10-31 14:35:50.105623537 +1100
> +++ linux-2.6/arch/x86/kernel/reboot.c  2011-11-03 11:54:12.487901547 +1100
> @@ -124,7 +124,7 @@
>  */
>
>  /*
> - * Some machines require the "reboot=b"  commandline option,
> + * Some machines require the "reboot=b" or "reboot=k"  commandline options,
>  * this quirk makes that automatic.
>  */
>  static int __init set_bios_reboot(const struct dmi_system_id *d)
> @@ -136,6 +136,15 @@
>        return 0;
>  }
>
> +static int __init set_kbd_reboot(const struct dmi_system_id *d)
> +{
> +       if (reboot_type != BOOT_KBD) {
> +               reboot_type = BOOT_KBD;
> +               printk(KERN_INFO "%s series board detected. Selecting KBD-method for reboots.\n", d->ident);
> +       }
> +       return 0;
> +}
> +
>  static struct dmi_system_id __initdata reboot_dmi_table[] = {
>        {       /* Handle problems with rebooting on Dell E520's */
>                .callback = set_bios_reboot,
> @@ -295,7 +304,7 @@
>                },
>        },
>        { /* Handle reboot issue on Acer Aspire one */
> -               .callback = set_bios_reboot,
> +               .callback = set_kbd_reboot,
>                .ident = "Acer Aspire One A110",
>                .matches = {
>                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
> --
> Dr Peter Chubb                                  peter DOT chubb AT nicta.com.au
> http://www.ertos.nicta.com.au               ERTOS within National ICT Australia
> All things shall perish from under the sky/Music alone shall live, never to die
>
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