linux-kernel - Re: [BUG] Can not boot linux-2.6.18-rc4-mm2

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Message-ID: <36e6b2150608222127y39bb9314h9b0a31f1f8b6b399@mail.gmail.com>
Date:	Wed, 23 Aug 2006 08:27:30 +0400
From:	"Paul Drynoff" <pauldrynoff@...il.com>
To:	"Jeremy Fitzhardinge" <jeremy@...p.org>
Cc:	"Andrew Morton" <akpm@...l.org>,
	"Jeremy Fitzhardinge" <jeremy@...source.com>,
	linux-kernel@...r.kernel.org, "Zachary Amsden" <zach@...are.com>
Subject: Re: [BUG] Can not boot linux-2.6.18-rc4-mm2

On 8/23/06, Jeremy Fitzhardinge <jeremy@...p.org> wrote:
> Hm.  Try this:
> --- a/arch/i386/kernel/paravirt.c
> +++ b/arch/i386/kernel/paravirt.c
I have no such file.

> --- a/include/asm-i386/desc.h
> +++ b/include/asm-i386/desc.h
> @@ -97,7 +97,7 @@ static inline void set_ldt(const void *a
>         __u32 low, high;
>
>         pack_descriptor(&low, &high, (unsigned long)addr,
> -                       entries * sizeof(struct desc_struct) - 1,
> +                       entries * sizeof(struct desc_struct),
>                         DESCTYPE_LDT, 0);
>         write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, low, high);

There is no such code in this file.

I adopt your code for linux-2.6.18-rc4-mm2, and looks like it fix bug.

Index: linux-2.6.18-rc4-mm2/include/asm-i386/desc.h
===================================================================
--- linux-2.6.18-rc4-mm2.orig/include/asm-i386/desc.h
+++ linux-2.6.18-rc4-mm2/include/asm-i386/desc.h
@@ -114,7 +114,7 @@ static inline void set_ldt_desc(unsigned
 {
        __u32 a, b;
        pack_descriptor(&a, &b, (unsigned long)addr,
-                       entries * sizeof(struct desc_struct) - 1,
+                       entries * sizeof(struct desc_struct),
                        DESCTYPE_LDT, 0);
        write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, a, b);
 }
-
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