[EMAIL PROTECTED] wrote:
Hi Robert,
Can you put some prom_printf's or printk's in to find out where your initrd ramdisk is ending up.
The code relies on ordering/alignment in the linker script which is not a good
idear so the aim needs to be to create some code that correctly identifies the
location of the ramdisk without using hard coded offsets based on '&end' and
2*4096 :). I will have another look at the code later on this week and see if I can
work out somthing that does the same thing but with more flexibility in what can be
done to the linker script (i.e. does not rely on specific alignments and ordering
in the linker script).
The information about where the ramdisk is may present a simple solution.
Regards
Mark Fortescue.
The following patch gives these numbers:
sparc_ramdisk_image = 3000000, &_end = f028bde0, phys_base = 0,
sparc_ramdisk_size = 3064303
initrd_start = 3000000, initrd_end = 32ec1ef
--- a/arch/sparc/mm/init.c
+++ b/arch/sparc/mm/init.c
@@ -206,9 +206,13 @@ unsigned long __init bootmem_init(unsigned long
*pages_avail)
#ifdef CONFIG_BLK_DEV_INITRD
/* Now have to check initial ramdisk, so that bootmap does not
overwrite it */
if (sparc_ramdisk_image) {
- sparc_ramdisk_image -= KERNBASE;
+printk("sparc_ramdisk_image = %x, &_end = %p, phys_base = %lx,
sparc_ramdisk_size = %u\n",
+sparc_ramdisk_image, &_end, phys_base, sparc_ramdisk_size);
+ if (sparc_ramdisk_image >= (unsigned long)&_end - 2 * PAGE_SIZE)
+ sparc_ramdisk_image -= KERNBASE;
initrd_start = sparc_ramdisk_image + phys_base;
initrd_end = initrd_start + sparc_ramdisk_size;
+printk("initrd_start = %lx, initrd_end = %lx\n", initrd_start, initrd_end);
if (initrd_end > end_of_phys_memory) {
printk(KERN_CRIT "initrd extends beyond end of memory "
"(0x%016lx > 0x%016lx)\ndisabling
initrd\n",
