Messages in this thread |  | | From | Madper Xie <> | Subject | Re: [BUG] can't boot up: unable to handle kernel paging request at ffffffffff340003 | Date | Thu, 13 Feb 2014 21:40:36 +0800 |
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matt@console-pimps.org writes:
> On Wed, 12 Feb, at 09:15:03AM, Toshi Kani wrote: >> >> Hi Matt, >> >> Yes, I agree that the table size should be 0x38. However, ACPI spec >> states that bit0 of status indicates if the boot image graphic is valid. >> This bit is set to 0 (invalid) on the system. Can you check this bit >> and return when invalid? > > Madper, could you try out this patch? > Thanks Matt. This patch fix the panic. And ioremap warning disappeared after apply your patch. > --- > > diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c > index 4df9591eadad..f15103dff4b4 100644 > --- a/arch/x86/platform/efi/efi-bgrt.c > +++ b/arch/x86/platform/efi/efi-bgrt.c > @@ -42,7 +42,7 @@ void __init efi_bgrt_init(void) > > if (bgrt_tab->header.length < sizeof(*bgrt_tab)) > return; > - if (bgrt_tab->version != 1) > + if (bgrt_tab->version != 1 || bgrt_tab->status != 1) > return; > if (bgrt_tab->image_type != 0 || !bgrt_tab->image_address) > return;
-- Madper
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