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Subject[PATCH] Re: Dmesg: Use a PAE enabled kernel
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How about something like the following (untested) patch?

This is against 2.5 but will probably apply with offset to 2.4.

- Roland

--- 1.71/arch/i386/kernel/setup.c Thu Feb 27 16:10:55 2003
+++ edited/arch/i386/kernel/setup.c Wed Mar 12 12:54:42 2003
@@ -634,8 +634,11 @@
max_low_pfn = MAXMEM_PFN;
#ifndef CONFIG_HIGHMEM
/* Maximum memory usable is what is directly addressable */
- printk(KERN_WARNING "Warning only %ldMB will be used.\n",
- MAXMEM>>20);
+ printk(KERN_WARNING "WARNING: only %ldMB can be addressed.\n"
+ "%ldMB of RAM is inaccessible and will not be used.\n",
+ MAXMEM >> 20,
+ PAGE_SHIFT < 20 ? (max_pfn - MAXMEM_PFN) >> (20 - PAGE_SHIFT)
+ : (max_pfn - MAXMEM_PFN) << (PAGE_SHIFT - 20));
if (max_pfn > MAX_NONPAE_PFN)
printk(KERN_WARNING "Use a PAE enabled kernel.\n");
else
@@ -644,9 +647,12 @@
#else /* !CONFIG_HIGHMEM */
#ifndef CONFIG_X86_PAE
if (max_pfn > MAX_NONPAE_PFN) {
- max_pfn = MAX_NONPAE_PFN;
- printk(KERN_WARNING "Warning only 4GB will be used.\n");
+ printk(KERN_WARNING "WARNING: only 4GB can be addressed.\n"
+ "%ldMB of RAM is inaccessible and will not be used.\n",
+ PAGE_SHIFT < 20 ? (max_pfn - MAX_NONPAE_PFN) >> (20 - PAGE_SHIFT)
+ : (max_pfn - MAX_NONPAE_PFN) << (PAGE_SHIFT - 20));
printk(KERN_WARNING "Use a PAE enabled kernel.\n");
+ max_pfn = MAX_NONPAE_PFN;
}
#endif /* !CONFIG_X86_PAE */
#endif /* !CONFIG_HIGHMEM */
-
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