The patch titled
x86-64: call clear_bss() before set_intr_gate() with early_idt_handler()
has been added to the -mm tree. Its filename is
x86-64-calling-clear_bss-before-set_intr_gate-with-early_idt_handler.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86-64: call clear_bss() before set_intr_gate() with early_idt_handler()
From: "Yinghai Lu" <yinghai.lu@xxxxxxx>
idt_table is in the .bss section, so clear_bss need to be called first.
Acked-by: Eric Biederman <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Yinghai Lu <yinghai.lu@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/x86_64/kernel/head64.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff -puN arch/x86_64/kernel/head64.c~x86-64-calling-clear_bss-before-set_intr_gate-with-early_idt_handler arch/x86_64/kernel/head64.c
--- a/arch/x86_64/kernel/head64.c~x86-64-calling-clear_bss-before-set_intr_gate-with-early_idt_handler
+++ a/arch/x86_64/kernel/head64.c
@@ -57,10 +57,12 @@ void __init x86_64_start_kernel(char * r
{
int i;
- for (i = 0; i < 256; i++)
+ /* clear bss before set_intr_gate with early_idt_handler */
+ clear_bss();
+
+ for (i = 0; i < IDT_ENTRIES; i++)
set_intr_gate(i, early_idt_handler);
asm volatile("lidt %0" :: "m" (idt_descr));
- clear_bss();
early_printk("Kernel alive\n");
_
Patches currently in -mm which might be from yinghai.lu@xxxxxxx are
tidy-gregkh-pci-pci-check-szhi-when-sz-is-0-when-64-bit-iomem-bigger-than-4g.patch
fix-gregkh-pci-pci-check-szhi-when-sz-is-0-when-64-bit-iomem-bigger-than-4g.patch
fix-2-gregkh-pci-pci-check-szhi-when-sz-is-0-when-64-bit-iomem-bigger-than-4g.patch
x86-64-calling-clear_bss-before-set_intr_gate-with-early_idt_handler.patch
x86-64-change-the-size-for-interrupt-array-to-nr_vectors.patch
-
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