Thread (5 messages) 5 messages, 3 authors, 2011-01-14

Re: BUG: spinlock bad magic on CPU#0

From: Sergey Senozhatsky <hidden>
Date: 2011-01-14 21:51:29
Also in: lkml

On (01/14/11 22:09), Rafael J. Wysocki wrote:
quoted
Hello,
Does the appended patch help?
Hello,
Yes, it does. Seems to be fixed.

Tested-by: Sergey Senozhatsky <redacted>


Thanks,
	Sergey

 
quoted hunk ↗ jump to hunk
---
 drivers/acpi/acpica/acglobal.h |    2 ++
 drivers/acpi/acpica/evmisc.c   |    2 --
 drivers/acpi/acpica/utmutex.c  |    1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

Index: linux-2.6/drivers/acpi/acpica/acglobal.h
===================================================================
--- linux-2.6.orig/drivers/acpi/acpica/acglobal.h
+++ linux-2.6/drivers/acpi/acpica/acglobal.h
@@ -228,8 +228,10 @@ ACPI_EXTERN u8 acpi_gbl_global_lock_pres
  */
 ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock;	/* For GPE data structs and registers */
 ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock;	/* For ACPI H/W except GPE registers */
+ACPI_EXTERN spinlock_t _acpi_ev_global_lock_pending_lock; /* For global lock */
 #define acpi_gbl_gpe_lock	&_acpi_gbl_gpe_lock
 #define acpi_gbl_hardware_lock	&_acpi_gbl_hardware_lock
+#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock
 
 /*****************************************************************************
  *
Index: linux-2.6/drivers/acpi/acpica/evmisc.c
===================================================================
--- linux-2.6.orig/drivers/acpi/acpica/evmisc.c
+++ linux-2.6/drivers/acpi/acpica/evmisc.c
@@ -293,8 +293,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_no
  *
  ******************************************************************************/
 static u8 acpi_ev_global_lock_pending;
-static spinlock_t _acpi_ev_global_lock_pending_lock;
-#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock
 
 static u32 acpi_ev_global_lock_handler(void *context)
 {
Index: linux-2.6/drivers/acpi/acpica/utmutex.c
===================================================================
--- linux-2.6.orig/drivers/acpi/acpica/utmutex.c
+++ linux-2.6/drivers/acpi/acpica/utmutex.c
@@ -85,6 +85,7 @@ acpi_status acpi_ut_mutex_initialize(voi
 
 	spin_lock_init(acpi_gbl_gpe_lock);
 	spin_lock_init(acpi_gbl_hardware_lock);
+	spin_lock_init(acpi_ev_global_lock_pending_lock);
 
 	/* Mutex for _OSI support */
 	status = acpi_os_create_mutex(&acpi_gbl_osi_mutex);

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