[PATCH 2/4] stack overflow safe kdump (i386) - crash

From: Fernando Luis Vazquez Cao (fernando_at_intellilink.co.jp)
Date: 11/28/05

  • Next message: Russell King: "Re: [DRIVER MODEL] Allow overlapping resources for platform devices" 
    To: "Eric W. Biederman" <ebiederm@xmission.com>
Date:	Tue, 29 Nov 2005 03:00:42 +0900

    Replace smp_processor_id with the stack overflow safe
    safe_smp_processor_id in the reboot patch to the crash capture kernel. 

    ---
diff -urNp linux-2.6.15-rc2/arch/i386/kernel/crash.c
linux-2.6.15-rc2-sov/arch/i386/kernel/crash.c
--- linux-2.6.15-rc2/arch/i386/kernel/crash.c	2005-10-28
09:02:08.000000000 +0900
+++ linux-2.6.15-rc2-sov/arch/i386/kernel/crash.c	2005-11-29
01:56:13.000000000 +0900
@@ -120,7 +120,7 @@ static void crash_save_self(struct pt_re
 	struct pt_regs regs;
 	int cpu;
 
-	cpu = smp_processor_id();
+	cpu = safe_smp_processor_id();
 	if (saved_regs)
 		crash_setup_regs(&regs, saved_regs);
 	else
@@ -211,7 +211,7 @@ void machine_crash_shutdown(struct pt_re
 	local_irq_disable();
 
 	/* Make a note of crashing cpu. Will be used in NMI callback.*/
-	crashing_cpu = smp_processor_id();
+	crashing_cpu = safe_smp_processor_id();
 	nmi_shootdown_cpus();
 	lapic_shutdown();
 #if defined(CONFIG_X86_IO_APIC)
-
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  • Next message: Russell King: "Re: [DRIVER MODEL] Allow overlapping resources for platform devices"

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