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Date: Tue, 20 Oct 2009 12:54:02 +0800 From: Feng Tang <feng.tang@...el.com> To: Matthew Garrett <mjg59@...f.ucam.org> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "tglx@...utronix.de" <tglx@...utronix.de> Subject: Re: [REGRESSION] EFI boot on x86 fails in .32 Hi Matthew, Could you try the following patch? I guess the bug is related to x86_32/64. Thanks, Feng ---------------------------------------------------------------- diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index ad5bd98..cdcfb12 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -454,8 +454,10 @@ void __init efi_init(void) if (add_efi_memmap) do_add_efi_memmap(); +#ifdef CONFIG_X86_32 x86_platform.get_wallclock = efi_get_time; x86_platform.set_wallclock = efi_set_rtc_mmss; +#endif /* Setup for EFI runtime service */ reboot_type = BOOT_EFI; On Tue, 20 Oct 2009 11:06:57 +0800 Matthew Garrett <mjg59@...f.ucam.org> wrote: > This seems to be caused by 7bd867dfb4e0357e06a3211ab2bd0e714110def3 - > reverting that results in a booting kernel. Can't say I understand how > or why, but... > > On Tue, Oct 20, 2009 at 01:34:00AM +0100, Matthew Garrett wrote: > > 2.6.32-rc5 (and some earlier git checkout I had) fail to boot on my > > HP 2530p when using EFI - they boot fine with the BIOS emulation > > instead. I get an early exception when print_efi_memmap() is > > called, which implies that the memory map is broken somehow. Here's > > the dmesg for a working boot: > > > > Initializing cgroup subsys cpuset > > Initializing cgroup subsys cpu > > Linux version 2.6.30.8-64.fc11.x86_64 > > (mockbuild@...-5.fedora.phx.redhat.com) (gcc version 4.4.1 20090725 > > (Red Hat 4.4.1-2) (GCC) ) #1 SMP Fri Sep 25 04:43:32 EDT 2009 > > Command line: ro root=UUID=fd334e23-080a-449d-8993-07758e5cd581 > > rhgb quiet KERNEL supported cpus: Intel GenuineIntel AMD > > AuthenticAMD Centaur CentaurHauls > > BIOS-provided physical RAM map: > > BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) > > BIOS-e820: 0000000000100000 - 0000000075a4c000 (usable) > > BIOS-e820: 0000000075a4c000 - 0000000075a4e000 (reserved) > > BIOS-e820: 0000000075a4e000 - 0000000076870000 (usable) > > BIOS-e820: 0000000076870000 - 0000000076880000 (ACPI NVS) > > BIOS-e820: 0000000076880000 - 0000000078fb1000 (usable) > > BIOS-e820: 0000000078fb1000 - 00000000791b1000 (ACPI NVS) > > BIOS-e820: 00000000791b1000 - 000000007a88f000 (usable) > > BIOS-e820: 000000007a88f000 - 000000007a9cf000 (reserved) > > BIOS-e820: 000000007a9cf000 - 000000007aacf000 (ACPI NVS) > > BIOS-e820: 000000007aacf000 - 000000007aaff000 (ACPI data) > > BIOS-e820: 000000007aaff000 - 000000007ab00000 (usable) > > BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved) > > BIOS-e820: 00000000fffa0000 - 00000000fffa7000 (reserved) > > EFI v2.00 by INTEL > > ACPI=0x7aafe000 ACPI 2.0=0x7aafe014 SMBIOS=0x7a99f718 > > Kernel-defined memdesc doesn't match the one from EFI! -- 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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