开启ACPI导致频繁死机[适合频繁死机的用户]？！{解决}

FreemanGL

Post by imagic
有没有试过在grub启动的时候加入acpi_use_timer_override这个内核参数？

这个参数是什么意思？

Second

Post by imagic
有没有试过在grub启动的时候加入acpi_use_timer_override这个内核参数？

能不能说具体一点。

Thruth

/boot/grub/menu.lst
在你选择的那行后面加上 acpi_use_timer_override
保存退出重启

FreemanGL

Post by Thruth
/boot/grub/menu.lst
在你选择的那行后面加上 acpi_use_timer_override
保存退出重启

请问这个参数是什么意思？

FreemanGL

Timer overrides are normally disabled on Nvidia board because
they are commonly wrong, except on new ones with HPET support.
Unfortunately there are quite some Asus boards around that
don't have HPET, but need a timer override.

We don't know yet how to handle this transparently,
but at least add a command line option to force the timer override
and let them boot.

Cc: len.brown at intel.com

Signed-off-by: Andi Kleen <ak at suse.de>

---
Documentation/kernel-parameters.txt |    4 ++++
arch/i386/kernel/acpi/boot.c        |    8 ++++++++
arch/i386/kernel/acpi/earlyquirk.c  |    8 +++++++-
arch/x86_64/kernel/early-quirks.c   |    8 ++++++++
include/asm-i386/acpi.h             |    1 +
include/asm-x86_64/acpi.h           |    1 +
6 files changed, 29 insertions(+), 1 deletion(-)

Index: linux/arch/i386/kernel/acpi/boot.c
===================================================================
--- linux.orig/arch/i386/kernel/acpi/boot.c
+++ linux/arch/i386/kernel/acpi/boot.c
@@ -82,6 +82,7 @@ EXPORT_SYMBOL(acpi_strict);
acpi_interrupt_flags acpi_sci_flags __initdata;
int acpi_sci_override_gsi __initdata;
int acpi_skip_timer_override __initdata;
+int acpi_use_timer_override __initdata;

#ifdef CONFIG_X86_LOCAL_APIC
static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
@@ -1300,6 +1301,13 @@ static int __init parse_acpi_skip_timer_
        return 0;
}
early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override);
+
+static int __init parse_acpi_use_timer_override(char *arg)
+{
+        acpi_use_timer_override = 1;
+        return 0;
+}
+early_param("acpi_use_timer_override", parse_acpi_use_timer_override);
#endif /* CONFIG_X86_IO_APIC */

static int __init setup_acpi_sci(char *s)
Index: linux/arch/i386/kernel/acpi/earlyquirk.c
===================================================================
--- linux.orig/arch/i386/kernel/acpi/earlyquirk.c
+++ linux/arch/i386/kernel/acpi/earlyquirk.c
@@ -27,11 +27,17 @@ static int __init check_bridge(int vendo
#ifdef CONFIG_ACPI
        /* According to Nvidia all timer overrides are bogus unless HPET
           is enabled. */
-        if (vendor == PCI_VENDOR_ID_NVIDIA) {
+        if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
                nvidia_hpet_detected = 0;
                acpi_table_parse(ACPI_HPET, nvidia_hpet_check);
                if (nvidia_hpet_detected == 0) {
                        acpi_skip_timer_override = 1;
+                          printk(KERN_INFO "Nvidia board "
+                       "detected. Ignoring ACPI "
+                       "timer override.\n");
+                printk(KERN_INFO "If you got timer trouble "
+                                  "try acpi_use_timer_override\n");
+
                }
        }
#endif
Index: linux/arch/x86_64/kernel/early-quirks.c
===================================================================
--- linux.orig/arch/x86_64/kernel/early-quirks.c
+++ linux/arch/x86_64/kernel/early-quirks.c
@@ -45,7 +45,13 @@ static void nvidia_bugs(void)
        /*
         * All timer overrides on Nvidia are
         * wrong unless HPET is enabled.
+         * Unfortunately that's not true on many Asus boards.
+         * We don't know yet how to detect this automatically, but
+         * at least allow a command line override.
         */
+        if (acpi_use_timer_override)
+                return;
+
        nvidia_hpet_detected = 0;
        acpi_table_parse(ACPI_HPET, nvidia_hpet_check);
        if (nvidia_hpet_detected == 0) {
@@ -53,6 +59,8 @@ static void nvidia_bugs(void)
                printk(KERN_INFO "Nvidia board "
                       "detected. Ignoring ACPI "
                       "timer override.\n");
+                printk(KERN_INFO "If you got timer trouble "
+                        "try acpi_use_timer_override\n");
        }
#endif
        /* RED-PEN skip them on mptables too? */
Index: linux/include/asm-i386/acpi.h
===================================================================
--- linux.orig/include/asm-i386/acpi.h
+++ linux/include/asm-i386/acpi.h
@@ -132,6 +132,7 @@ extern int acpi_gsi_to_irq(u32 gsi, unsi

#ifdef CONFIG_X86_IO_APIC
extern int acpi_skip_timer_override;
+extern int acpi_use_timer_override;
#endif

static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
Index: linux/include/asm-x86_64/acpi.h
===================================================================
--- linux.orig/include/asm-x86_64/acpi.h
+++ linux/include/asm-x86_64/acpi.h
@@ -163,6 +163,7 @@ extern u8 x86_acpiid_to_apicid[];
#define ARCH_HAS_POWER_INIT 1

extern int acpi_skip_timer_override;
+extern int acpi_use_timer_override;

#endif /*__KERNEL__*/

Index: linux/Documentation/kernel-parameters.txt
===================================================================
--- linux.orig/Documentation/kernel-parameters.txt
+++ linux/Documentation/kernel-parameters.txt
@@ -164,6 +164,10 @@ and is between 256 and 4096 characters.
        acpi_skip_timer_override [HW,ACPI]
                        Recognize and ignore IRQ0/pin2 Interrupt Override.
                        For broken nForce2 BIOS resulting in XT-PIC timer.
+        acpi_use_timer_override [HW,ACPI}
+                        Use timer override. For some broken Nvidia NF5 boards
+                        that require a timer override, but don't have
+                        HPET

        acpi_dbg_layer=        [HW,ACPI]
                        Format: <int>