[PATCH 3/4] stack overflow safe kdump ( 2.6.15-rc3-i386) - do_nmi
From: Fernando Luis Vazquez Cao (fernando_at_intellilink.co.jp)
Date: 11/30/05
- Previous message: Fernando Luis Vazquez Cao: "[PATCH 2/4] stack overflow safe kdump ( 2.6.15-rc3-i386) - crash"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
To: "Eric W. Biederman" <ebiederm@xmission.com> Date: Wed, 30 Nov 2005 16:36:57 +0900
crash_nmi_callback is called right after a system crash which might have
caused by stack overflow, thus smp_processor_id should not be trusted.
Use the safe replacement safe_smp_processor_id.
---
diff -urNp linux-2.6.15-rc3/arch/i386/kernel/traps.c linux-2.6.15-rc3-sov/arch/i386/kernel/traps.c
--- linux-2.6.15-rc3/arch/i386/kernel/traps.c 2005-11-30 14:51:49.000000000 +0900
+++ linux-2.6.15-rc3-sov/arch/i386/kernel/traps.c 2005-11-30 14:55:57.000000000 +0900
@@ -648,7 +648,7 @@ fastcall void do_nmi(struct pt_regs * re
nmi_enter();
- cpu = smp_processor_id();
+ cpu = safe_smp_processor_id();
#ifdef CONFIG_HOTPLUG_CPU
if (!cpu_online(cpu)) {
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Fernando Luis Vazquez Cao: "[PATCH 2/4] stack overflow safe kdump ( 2.6.15-rc3-i386) - crash"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
