From: Borislav Petkov <[email protected]> What looked like a straightforward conversion from printk(KERN_DEBUG, ...) to pr_debug() broke the boot log output:
DMI: /M57SLI-S4, BIOS FF 01/24/2008 -e820: update [mem 0x00000000-0x00000fff] usable ==> reserved -e820: remove [mem 0x000a0000-0x000fffff] usable +usable ==> reserved +usable e820: last_pfn = 0x230000 max_arch_pfn = 0x400000000 ... x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT -e820: update [mem 0xd0000000-0xffffffff] usable ==> reserved +usable ==> reserved i.e. spurious (and nonsensical) kernel log entries were created... We need a pr_debug_and_I_mean_it() function which does nothing but printk(KERN_DEBUG... Signed-off-by: Borislav Petkov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] [ Wrote changelog. ] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/kernel/e820.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index e2fb20ac5135..6e9b26fa6d05 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -411,7 +411,7 @@ __e820__range_update(struct e820_table *table, u64 start, u64 size, enum e820_ty size = ULLONG_MAX - start; end = start + size; - pr_debug("e820: update [mem %#010Lx-%#010Lx] ", start, end - 1); + printk(KERN_DEBUG "e820: update [mem %#010Lx-%#010Lx] ", start, end - 1); e820_print_type(old_type); pr_cont(" ==> "); e820_print_type(new_type); @@ -487,7 +487,7 @@ u64 __init e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool size = ULLONG_MAX - start; end = start + size; - pr_debug("e820: remove [mem %#010Lx-%#010Lx] ", start, end - 1); + printk(KERN_DEBUG "e820: remove [mem %#010Lx-%#010Lx] ", start, end - 1); if (check_type) e820_print_type(old_type); pr_cont("\n"); @@ -1121,7 +1121,7 @@ void __init e820__reserve_resources_late(void) if (start >= end) continue; - pr_debug("e820: reserve RAM buffer [mem %#010llx-%#010llx]\n", start, end); + printk(KERN_DEBUG "e820: reserve RAM buffer [mem %#010llx-%#010llx]\n", start, end); reserve_region_with_split(&iomem_resource, start, end, "RAM buffer"); } } -- 2.7.4
