10 files changed, 44 insertions, 12 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index c6fe99e..8dfa305 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -758,10 +758,10 @@ config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 	depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
 	---help---
-	  Say Y here to experiment with turning CPUs off and on.  CPUs
-	  can be controlled through /sys/devices/system/cpu.
+	  Say Y here to experiment with turning CPUs off and on, and to
+	  enable suspend on SMP systems. CPUs can be controlled through
+	  /sys/devices/system/cpu.
 
-	  Say N.
 
 endmenu
 
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 40e5aba..daee695 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -1066,6 +1066,14 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
 		     },
 	 },
+	{
+	 .callback = disable_acpi_pci,
+	 .ident = "HP xw9300",
+	 .matches = {
+		    DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		    DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"),
+		    },
+	},
 	{}
 };
 
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index 013b85d..3d4b2f3 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -1341,6 +1341,14 @@ int __init APIC_init_uniprocessor (void)
 
 	connect_bsp_APIC();
 
+	/*
+	 * Hack: In case of kdump, after a crash, kernel might be booting
+	 * on a cpu with non-zero lapic id. But boot_cpu_physical_apicid
+	 * might be zero if read from MP tables. Get it from LAPIC.
+	 */
+#ifdef CONFIG_CRASH_DUMP
+	boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
+#endif
 	phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid);
 
 	setup_local_APIC();
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index f8f132a..d70f2ad 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -2238,6 +2238,8 @@ static inline void unlock_ExtINT_logic(void)
 	spin_unlock_irqrestore(&ioapic_lock, flags);
 }
 
+int timer_uses_ioapic_pin_0;
+
 /*
  * This code may look a bit paranoid, but it's supposed to cooperate with
  * a wide range of boards and BIOS bugs.  Fortunately only the timer IRQ
@@ -2274,6 +2276,9 @@ static inline void check_timer(void)
 	pin2  = ioapic_i8259.pin;
 	apic2 = ioapic_i8259.apic;
 
+	if (pin1 == 0)
+		timer_uses_ioapic_pin_0 = 1;
+
 	printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
 		vector, apic1, pin1, apic2, pin2);
 
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 34d21e2..6b1392d 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -1130,7 +1130,17 @@ int mp_register_gsi (u32 gsi, int triggering, int polarity)
 		 */
 		int irq = gsi;
 		if (gsi < MAX_GSI_NUM) {
-			if (gsi > 15)
+			/*
+			 * Retain the VIA chipset work-around (gsi > 15), but
+			 * avoid a problem where the 8254 timer (IRQ0) is setup
+			 * via an override (so it's not on pin 0 of the ioapic),
+			 * and at the same time, the pin 0 interrupt is a PCI
+			 * type.  The gsi > 15 test could cause these two pins
+			 * to be shared as IRQ0, and they are not shareable.
+			 * So test for this condition, and if necessary, avoid
+			 * the pin collision.
+			 */
+			if (gsi > 15 || (gsi == 0 && !timer_uses_ioapic_pin_0))
 				gsi = pci_irq++;
 			/*
 			 * Don't assign IRQ used by ACPI SCI
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index d77e89a..846e163 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -1320,6 +1320,8 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
 	probe_roms();
 	for (i = 0; i < e820.nr_map; i++) {
 		struct resource *res;
+		if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL)
+			continue;
 		res = kzalloc(sizeof(struct resource), GFP_ATOMIC);
 		switch (e820.map[i].type) {
 		case E820_RAM:	res->name = "System RAM"; break;
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 2d22f57..0e49836 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -130,9 +130,8 @@ static inline int print_addr_and_symbol(unsigned long addr, char *log_lvl,
 	print_symbol("%s", addr);
 
 	printed = (printed + 1) % CONFIG_STACK_BACKTRACE_COLS;
-
 	if (printed)
-		printk("  ");
+		printk(" ");
 	else
 		printk("\n");
 
@@ -212,7 +211,6 @@ static void show_stack_log_lvl(struct task_struct *task, unsigned long *esp,
 	}
 
 	stack = esp;
-	printk(log_lvl);
 	for(i = 0; i < kstack_depth_to_print; i++) {
 		if (kstack_end(stack))
 			break;
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index ae6534a..3df1371 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -651,7 +651,7 @@ void __init mem_init(void)
  * Specifically, in the case of x86, we will always add
  * memory to the highmem for now.
  */
-#ifdef CONFIG_HOTPLUG_MEMORY
+#ifdef CONFIG_MEMORY_HOTPLUG
 #ifndef CONFIG_NEED_MULTIPLE_NODES
 int add_memory(u64 start, u64 size)
 {
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c
index 1a2076c..ec0fd3c 100644
--- a/arch/i386/oprofile/nmi_int.c
+++ b/arch/i386/oprofile/nmi_int.c
@@ -332,10 +332,11 @@ static int __init ppro_init(char ** cpu_type)
 {
 	__u8 cpu_model = boot_cpu_data.x86_model;
 
-	if (cpu_model > 0xd)
+	if (cpu_model == 14)
+		*cpu_type = "i386/core";
+	else if (cpu_model > 0xd)
 		return 0;
-
-	if (cpu_model == 9) {
+	else if (cpu_model == 9) {
 		*cpu_type = "i386/p6_mobile";
 	} else if (cpu_model > 5) {
 		*cpu_type = "i386/piii";
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c
index 50a0bef..79b2370 100644
--- a/arch/i386/power/cpu.c
+++ b/arch/i386/power/cpu.c
@@ -92,7 +92,7 @@ void __restore_processor_state(struct saved_context *ctxt)
 	write_cr4(ctxt->cr4);
 	write_cr3(ctxt->cr3);
 	write_cr2(ctxt->cr2);
-	write_cr2(ctxt->cr0);
+	write_cr0(ctxt->cr0);
 
 	/*
 	 * now restore the descriptor tables to their proper values