Messages in this thread | | | Subject | Re: [x86-tip] RSDP changes converted i4790 box SMP -> UP | From | Gabriel C <> | Date | Mon, 15 Jan 2018 17:29:53 +0100 |
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On 15.01.2018 16:40, Juergen Gross wrote: > On 15/01/18 16:32, Ingo Molnar wrote: >>
Hi Juergen,
>> * Juergen Gross <jgross@suse.com> wrote: >> >>> On 15/01/18 15:56, Borislav Petkov wrote: >>>> On Mon, Jan 15, 2018 at 03:52:25PM +0100, Juergen Gross wrote: >>>>> Ingo, with my finding that above boot failure is related to a bug in >>>>> openSUSE's grub2 (I've verified it soesn't exist in upstream grub2), >>>> >>>> The box I'm seeing this on has SLES12-SP2 grub: >>>> >>>> Version : 2.02~beta2-115.9.1 >>>> >>>> Does it have the same bug? >>> >>> The patch introducing this problem is from 2012. So I guess: yes. >> >> I suspect this makes it a widespread, unintended ABI. Can we detect and somehow avoid it? >> >> The boot protocol ABI sucks if it's fragile against such mistakes. > > Well, copying sizeof(setup_header) into grub2 and then coyping back just > 1024 bytes is plain wrong. It is a miracle nothing broke up to now. >
I'm not on SUSE and hit that too on an H11DSi-NT. See: https://marc.info/?l=linux-kernel&m=151579540320553&w=2
Regards,
Gabriel C
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