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Message-ID: <51DE1111.7040809@redhat.com> Date: Thu, 11 Jul 2013 09:57:37 +0800 From: Dave Young <dyoung@...hat.com> To: Matt Fleming <matt.fleming@...el.com> CC: lkml <linux-kernel@...r.kernel.org>, Matthew Garrett <matthew.garrett@...ula.com> Subject: Re: uefi boot hang (bisected) On 07/10/2013 08:36 PM, Matt Fleming wrote: > On 10/07/13 07:36, Dave Young wrote: >> Another problem is: With this patch applied I tried noefi boot, but >> kernel paniced, looks like efivar_init depends on efi runtime. Below >> patches works for me about noefi boot though I'm not sure if it's a >> right fix, please review. > > It makes more sense to check in efivars.c, since none of that file can > function without runtime serivces. > > Could you try the following patch? It works, thanks for the patch. Tested-by: Dave Young <dyoung@...hat.com> > > --- > > diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c > index 8bd1bb6..8a7432a 100644 > --- a/drivers/firmware/efi/efivars.c > +++ b/drivers/firmware/efi/efivars.c > @@ -583,6 +583,9 @@ int efivars_sysfs_init(void) > struct kobject *parent_kobj = efivars_kobject(); > int error = 0; > > + if (!efi_enabled(EFI_RUNTIME_SERVICES)) > + return -ENODEV; > + > /* No efivars has been registered yet */ > if (!parent_kobj) > return 0; > -- Thanks Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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