- configurable stack size fo x86_64

diff --git a/lustre/kernel_patches/patches/configurable-x86_64-2.4.21.patch b/lustre/kernel_patches/patches/configurable-x86_64-2.4.21.patch
new file mode 100644 (file)
index 0000000..757ee71
--- /dev/null
+++ b/lustre/kernel_patches/patches/configurable-x86_64-2.4.21.patch
@@ -0,0 +1,122 @@
+Index: linux-2.4.21-drop2/arch/x86_64/kernel/smpboot.c
+===================================================================
+--- linux-2.4.21-drop2.orig/arch/x86_64/kernel/smpboot.c       2003-10-28 10:34:20.000000000 -0800
++++ linux-2.4.21-drop2/arch/x86_64/kernel/smpboot.c    2004-08-06 06:18:39.000000000 -0700
+@@ -751,7 +751,7 @@
+                       Dprintk("CPU has booted.\n");
+               } else {
+                       boot_status = 1;
+-                      if (*((volatile unsigned char *)phys_to_virt(8192))
++                      if (*((volatile unsigned char *)phys_to_virt(THREAD_SIZE))
+                                       == 0xA5)
+                               /* trampoline started but...? */
+                               printk("Stuck ??\n");
+@@ -770,7 +770,7 @@
+       }
+ 
+       /* mark "stuck" area as not stuck */
+-      *((volatile unsigned int *)phys_to_virt(8192)) = 0;
++      *((volatile unsigned int *)phys_to_virt(THREAD_SIZE)) = 0;
+       
+       return cpu; 
+ }
+Index: linux-2.4.21-drop2/arch/x86_64/kernel/traps.c
+===================================================================
+--- linux-2.4.21-drop2.orig/arch/x86_64/kernel/traps.c 2003-11-06 15:52:41.000000000 -0800
++++ linux-2.4.21-drop2/arch/x86_64/kernel/traps.c      2004-08-06 06:18:39.000000000 -0700
+@@ -239,7 +239,7 @@
+       unsigned long rsp = tsk->thread.rsp;
+ 
+       /* User space on another CPU? */
+-      if ((rsp ^ (unsigned long)tsk) & (PAGE_MASK<<1))
++      if ((rsp ^ (unsigned long)tsk) & ~(THREAD_SIZE - 1))
+               return;
+       show_trace((unsigned long *)rsp);
+ }
+Index: linux-2.4.21-drop2/arch/x86_64/config.in
+===================================================================
+--- linux-2.4.21-drop2.orig/arch/x86_64/config.in      2003-10-28 10:34:25.000000000 -0800
++++ linux-2.4.21-drop2/arch/x86_64/config.in   2004-08-06 06:20:20.000000000 -0700
+@@ -91,6 +91,28 @@
+    define_bool CONFIG_NUMA y
+ fi
+ 
++choice 'Bigger Stack Size Support' \
++     "off    CONFIG_NOBIGSTACK \
++      16KB   CONFIG_STACK_SIZE_16KB \
++      32KB   CONFIG_STACK_SIZE_32KB \
++      64KB   CONFIG_STACK_SIZE_64KB" off
++
++if [ "$CONFIG_NOBIGSTACK" = "y" ]; then
++   define_int CONFIG_STACK_SIZE_SHIFT 1
++else
++  if [ "$CONFIG_STACK_SIZE_16KB" = "y" ]; then
++     define_int CONFIG_STACK_SIZE_SHIFT 2
++  else
++    if [ "$CONFIG_STACK_SIZE_32KB" = "y" ]; then
++      define_int CONFIG_STACK_SIZE_SHIFT 3
++   else
++      if [ "$CONFIG_STACK_SIZE_64KB" = "y" ]; then
++        define_int CONFIG_STACK_SIZE_SHIFT 4
++      fi
++    fi
++  fi
++fi
++ 
+ endmenu
+ 
+ mainmenu_option next_comment
+Index: linux-2.4.21-drop2/arch/x86_64/vmlinux.lds
+===================================================================
+--- linux-2.4.21-drop2.orig/arch/x86_64/vmlinux.lds    2003-06-13 07:51:32.000000000 -0700
++++ linux-2.4.21-drop2/arch/x86_64/vmlinux.lds 2004-08-06 06:18:39.000000000 -0700
+@@ -72,7 +72,8 @@
+   .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT (LOADADDR(.vsyscall_0) + 1024) { *(.vsyscall_1) }
+   . = LOADADDR(.vsyscall_0) + 4096;
+ 
+-  . = ALIGN(8192);            /* init_task */
++/* chose the biggest of the possible stack sizes here? */
++  . = ALIGN(65536);           /* init_task */
+   .data.init_task : { *(.data.init_task) }
+ 
+   . = ALIGN(4096); 
+Index: linux-2.4.21-drop2/include/asm-x86_64/current.h
+===================================================================
+--- linux-2.4.21-drop2.orig/include/asm-x86_64/current.h       2003-11-10 16:44:28.000000000 -0800
++++ linux-2.4.21-drop2/include/asm-x86_64/current.h    2004-08-06 06:24:33.000000000 -0700
+@@ -5,6 +5,7 @@
+ struct task_struct;
+ 
+ #include <asm/pda.h>
++#include <asm/page.h>
+ 
+ static inline struct task_struct *get_current(void) 
+ { 
+Index: linux-2.4.21-drop2/include/asm-x86_64/page.h
+===================================================================
+--- linux-2.4.21-drop2.orig/include/asm-x86_64/page.h  2003-10-28 10:34:00.000000000 -0800
++++ linux-2.4.21-drop2/include/asm-x86_64/page.h       2004-08-06 06:24:33.000000000 -0700
+@@ -27,8 +27,8 @@
+ /* We still hope 8K is enough, but ... */
+ /* Currently it is actually ~6k. This would change when task_struct moves into
+    an own slab. */
+-#define THREAD_ORDER    1
+-#define THREAD_SIZE    (2*PAGE_SIZE)
++#define THREAD_ORDER   CONFIG_STACK_SIZE_SHIFT 
++#define THREAD_SIZE    ((1 << CONFIG_STACK_SIZE_SHIFT) * PAGE_SIZE)
+ 
+ #define INIT_TASK_SIZE THREAD_SIZE
+ #define CURRENT_MASK (~(THREAD_SIZE-1))
+Index: linux-2.4.21-drop2/include/asm-x86_64/processor.h
+===================================================================
+--- linux-2.4.21-drop2.orig/include/asm-x86_64/processor.h     2003-11-10 16:44:28.000000000 -0800
++++ linux-2.4.21-drop2/include/asm-x86_64/processor.h  2004-08-06 06:24:33.000000000 -0700
+@@ -385,7 +385,7 @@
+    are already there. When you run out of stack try this first. */
+ #define alloc_task_struct() \
+       ((struct task_struct *) __get_free_pages(GFP_KERNEL,THREAD_ORDER))
+-#define free_task_struct(p) free_pages((unsigned long) (p), 1)
++#define free_task_struct(p) free_pages((unsigned long) (p), THREAD_ORDER)
+ #define get_task_struct(tsk)      atomic_inc(&virt_to_page(tsk)->count)
+ 
+ #define init_task     (init_task_union.task)