• Andrew Morton's avatar
    [PATCH] x86-64 fixes for 2.6.4rc1 · 2955399d
    Andrew Morton authored
    From: Andi Kleen <ak@suse.de>
    
    Fix a few issues on x86-64 for 2.6.4rc1.
    
    The 32bit emulation used 4GB/3 for the mmap break. This actually gave
    programs less sbrk space than with a standard 32bit kernel. Move the 32bit
    mmap break to 0xc5000000.
    
    Uses the correct gcc option to optimize for Prescott now (requires a very
    new mainline gcc)
    
    Also merge the i386 sched_clock().  I hope this will fix some interactivity
    problems with the scheduler.
    
    - Change initializer to new style (Arnd Bergmann)
    - Remove 2 sibling limit in HT support (from i386)
    - Always log RIP in MCE records even when not exact
    - Move 32bit program task break up to 0xc5000000 by default
    - Use -march=prescott for Prescott optimized kernel if possible
    - Don't divide by zero with report_lost_ticks on and HPET off
    - Merge preempt/smp/debug_pagealloc oops printing from i386
    - Add pfn_to_nid()
    - Merge more accurate sched_clock from i386
    - Remove traces of debugging code in mce.c
    - Update defconfig
    2955399d
i8259.c 12.1 KB