On Tue, Feb 13, 2018 at 10:43:56AM +0100, Ingo Molnar wrote: > > * Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote: > > > On Tue, Feb 13, 2018 at 12:41:22AM -0800, Andrei Vagin wrote: > > > On Tue, Feb 13, 2018 at 11:08:16AM +0300, Kirill A. Shutemov wrote: > > > > On Mon, Feb 12, 2018 at 10:51:56PM -0800, Andrei Vagin wrote: > > > > > Hi Kirill, > > > > > > > > > > Something is wrong in this patch. > > > > Could you please check if this makes a difference? > > > > diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S > > index 70b30f2bc9e0..99a0e7993252 100644 > > --- a/arch/x86/boot/compressed/head_64.S > > +++ b/arch/x86/boot/compressed/head_64.S > > @@ -332,7 +332,7 @@ ENTRY(startup_64) > > > > /* Make sure we have GDT with 32-bit code segment */ > > leaq gdt(%rip), %rax > > - movl %eax, gdt64+2(%rip) > > + movq %rax, gdt64+2(%rip) > > lgdt gdt64(%rip) > > There's another suspicious looking pattern as well: > > leaq startup_32(%rip), %rax > movl %eax, BP_code32_start(%rsi) > ... > movl BP_code32_start(%esi), %eax > leaq startup_64(%rax), %rax > ... code32_start is 4-byte field as described in the boot protocol, so the truncation is intentional I think. -- Kirill A. Shutemov -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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